content
stringlengths 228
999k
| pred_label
stringclasses 1
value | pred_score
float64 0.5
1
|
|---|---|---|
Properties
Base field 4.4.18625.1
Weight [2, 2, 2, 2]
Level norm 20
Level $[20, 10, w + 1]$
Label 4.4.18625.1-20.1-f
Dimension 3
CM no
Base change no
Related objects
Downloads
Learn more about
Base field 4.4.18625.1
Generator \(w\), with minimal polynomial \(x^{4} - x^{3} - 14x^{2} + 9x + 41\); narrow class number \(2\) and class number \(1\).
Form
Weight [2, 2, 2, 2]
Level $[20, 10, w + 1]$
Label 4.4.18625.1-20.1-f
Dimension 3
Is CM no
Is base change no
Parent newspace dimension 32
Hecke eigenvalues ($q$-expansion)
The Hecke eigenvalue field is $\Q(e)$ where $e$ is a root of the defining polynomial:
\(x^{3} \) \(\mathstrut +\mathstrut x^{2} \) \(\mathstrut -\mathstrut 4x \) \(\mathstrut -\mathstrut 3\)
Show full eigenvalues Hide large eigenvalues
Norm Prime Eigenvalue
4 $[4, 2, \frac{1}{6}w^{3} - \frac{7}{3}w - \frac{17}{6}]$ $\phantom{-}e$
4 $[4, 2, w - 3]$ $\phantom{-}1$
5 $[5, 5, -\frac{1}{6}w^{3} + w^{2} + \frac{1}{3}w - \frac{25}{6}]$ $-1$
9 $[9, 3, \frac{1}{6}w^{3} - \frac{7}{3}w + \frac{13}{6}]$ $\phantom{-}e^{2} - 2e - 4$
9 $[9, 3, -w - 2]$ $\phantom{-}e^{2} + e - 4$
11 $[11, 11, -\frac{1}{6}w^{3} + \frac{7}{3}w + \frac{11}{6}]$ $\phantom{-}e^{2} + e - 5$
11 $[11, 11, -w + 2]$ $\phantom{-}e - 1$
41 $[41, 41, -w]$ $\phantom{-}2e^{2} - 3e - 12$
41 $[41, 41, \frac{1}{6}w^{3} - \frac{7}{3}w + \frac{1}{6}]$ $-e + 1$
59 $[59, 59, -\frac{1}{6}w^{3} + \frac{1}{3}w + \frac{23}{6}]$ $\phantom{-}e^{2} + e - 5$
59 $[59, 59, -\frac{1}{3}w^{3} + \frac{11}{3}w + \frac{11}{3}]$ $\phantom{-}e^{2} + e + 1$
61 $[61, 61, -\frac{5}{3}w^{3} - 3w^{2} + \frac{46}{3}w + \frac{79}{3}]$ $\phantom{-}e^{2} - e - 5$
61 $[61, 61, \frac{5}{6}w^{3} + w^{2} - \frac{23}{3}w - \frac{55}{6}]$ $-e^{2} - e + 1$
61 $[61, 61, w^{3} + 2w^{2} - 9w - 17]$ $-2e^{2} - 2e + 3$
61 $[61, 61, -\frac{1}{6}w^{3} + \frac{10}{3}w + \frac{35}{6}]$ $-3e^{2} - 4e + 8$
71 $[71, 71, -\frac{1}{2}w^{3} + 2w^{2} + 4w - \frac{33}{2}]$ $\phantom{-}9$
71 $[71, 71, \frac{1}{6}w^{3} - w^{2} - \frac{4}{3}w + \frac{67}{6}]$ $\phantom{-}2e^{2} + e - 14$
79 $[79, 79, \frac{1}{2}w^{3} - 3w + \frac{1}{2}]$ $-4e^{2} - 5e + 13$
79 $[79, 79, -\frac{2}{3}w^{3} + \frac{19}{3}w - \frac{2}{3}]$ $-4e^{2} + 3e + 20$
89 $[89, 89, \frac{1}{2}w^{3} + w^{2} - 5w - \frac{15}{2}]$ $\phantom{-}4e + 5$
Display number of eigenvalues
Atkin-Lehner eigenvalues
Norm Prime Eigenvalue
4 $[4, 2, w - 3]$ $-1$
5 $[5, 5, -\frac{1}{6}w^{3} + w^{2} + \frac{1}{3}w - \frac{25}{6}]$ $1$ | __label__pos | 0.999992 |
Multivalued Dependency
A multivalued dependency (MVD) is a concept in database theory that describes a relationship between attributes in a relational database. It is an extension of the functional dependency (FD) concept and deals with dependencies among sets of attributes rather than individual attributes.
In a relational database, an MVD occurs when a set of attributes (X) determines a set of attributes (Y), but there can be multiple possible values for another set of attributes (Z) that are independent of both X and Y. In other words, for each combination of values in X, there can be multiple combinations of values in Z associated with it, which in turn determines multiple combinations of values in Y.
MVDs are denoted as X ->-> Y, where X, Y, and Z are sets of attributes. This notation indicates that X determines Y, but there can be multiple possible combinations of values in Z associated with each combination of values in X.
MVDs are primarily used to identify certain types of redundancies in a relational database. By detecting and eliminating these redundancies, we can improve the efficiency of storage and query processing.
It’s worth noting that MVDs are less commonly used and studied compared to functional dependencies, and they are not supported by the traditional relational model. However, they have been investigated in the context of database normalization and database design.
Example of Multivalued Dependency:
Sure! Let’s consider a simplified example to demonstrate a multivalued dependency.
Suppose we have a relation/table called “Employee” with the following attributes: Employee_ID, Employee_Name, and Skills. The “Skills” attribute represents the various skills possessed by an employee, and it can contain multiple values.
Employee Table:
Employee_ID Employee_Name Skills
1 John Java, Python
2 Alice C++, Python
3 Mike Java, SQL
In this scenario, we can observe that there is a multivalued dependency between the attributes Employee_Name and Skills. Let’s break it down:
If we consider the attribute set X = {Employee_Name}, and attribute set Y = {Skills}, we can see that for each employee name (X), there can be multiple combinations of skills (Y). For example, John can have skills in Java and Python, while Alice can have skills in C++ and Python.
However, there might exist another set of attributes Z = {Employee_ID} that is independent of both X and Y. The employee IDs do not have any influence on the possible combinations of skills.
So, in this case, the multivalued dependency can be represented as Employee_Name ->-> Skills, indicating that the employee name determines the set of skills, but there can be multiple possible combinations of skills associated with each employee name.
Identifying such dependencies can be useful in database design and normalization, as it helps to eliminate redundancies and ensure data consistency. | __label__pos | 0.999764 |
HowTo: Convert Third-Party IP Geolocation Database to Citrix ADC Format
Introduction and Background
Citrix ADCs (formerly NetScaler) use an in-built MaxMind IP geodatabase which is great for conventional use, however, there are certainly numerous third-party databases available that are updated regularly, and contain more granular details.
A customer wanted to migrate over their existing NetAcuity geolocation database into the Citrix ADC with more entries than I had fingers, so data entry was out of the question.
Solution
Python. Let’s go another step further and build a script that is relatively straightforward and can adjust to various scenarios allowing us to kick back and relax.
Before We Get Going…
There are a few items for us to get out of the way for some context, references, as well as tips.
Terms and Uses for Geolocation Databases
This article isn’t going to cover what a geolocation database is, but this Citrix Doc can assist there if need be. Below are some terms and uses for geolocation databases on a Citrix ADC.
• Geo-location: The Citrix ADC appliance can get the user’s location details like continent, country, city, latitude and longitude, etc. from their public IP address. The location details are sourced from a geolocation database that holds various CIDR blocks and their associated information. Some geolocation databases include other granular details such as ZIP code, Internet connection type, and more.
• Static Proximity: An option in GSLB configurations that uses a geolocation database to determine which GSLB service to direct client requests, based on the proximity to the GSLB service (closer = better).
• Geo-blocking: Blocking access based upon a user’s location (or rather, based on IP).
• Geo-fencing: Triggering an event depending on if the user is in a predefined location.
Wildcard Use in Geolocation Expressions
As referenced here: https://www.irangers.com/citrix-netscaler-geoip-broken/. Policies with wildcards need to have this command explicitly enabled. Considering wildcards are fairly important to mapping out geolocation details, it is necessary to ensure this function is enabled on the appliance, as by default it is not. The following command will achieve this for you:
set locationParameter -matchWildcardtoany YES
Built-in Citrix Database Formats
This script was engineered to assist in converting non-Citrix native geolocation databases (Specifically NetAcuity, albeit one may opt to reverse engineer the logic and adapt it to other databases). The Citrix geolocation database format can be found here.
Onto The Script…
The goal here is to take a geolocation database which which isn’t immediately compatible with the Citrix geolocation formats, and parse out the vital data and transform it into a useable format that can be imported onto the appliance. The Python script will be provided at the end of this guide.
How the Script Works
The script takes raw data, and once a delimiter is specified then specific fields can be chosen to match the default Netscaler geolocation db format.
The first 2 fields MUST be in dotted decimal format with the first entry being Start and the second entry being End of scope. Any line that doesn’t begin with 2 IP addresses are skipped over.
Example of DB entries from a non-native format:
2.16.224.0;2.16.224.255;bra;sp;sao paulo;broadband;76009;-23.52;-46.63;01101-080;76;726;4162;7;br;1;?;99;85;80;30;-300;n;america/sao_paulo;
2.17.128.0;2.17.159.255;usa;ca;los angeles;broadband;803;34.01;-118.26;90011;840;5;113;6;us;1;213;99;90;90;30;-700;y;america/los_angeles;
Pre-requisites
If you’re using Linux or Mac then run the command below to be able to run this script as an executable. It checks if you have python3 installed as the default python interpreter then adds the shebang into the script and copies the script file into a .sh file. The script can be executed with ./geo rather than “python geo.py” a whopping saving of 1 second!
The same one-liner can be used on the ADC to achieve the same goal, which may be particularly useful for some deployments.
Windows users should have python3 installed to execute the script.
citrix_adc_geolocation_conversion_python3
preamble="#!"; if ls -l `which python` | grep python3; then cp geo.py geo.sh; chmod u+x geo.sh; sed -i "1 i$preamble`which python`" geo.sh; fi;
Step 1
It’s easier to have the working files such as the script and the raw geolocation database file in a single directory so begin there. View the database file to view what the delimiter will be. In this instance it will be a semicolon ;.
citrix_adc_geolocation_conversion_2
Step 2
Run the script with either command below:
./geo.sh [db-filename]
python geo.py [db-filename]
The default value for delimiter is a semicolon [;] so either hit enter to continue or enter a different value.
After, the first line in the database is read, so work through the fields and input the numbers that correlate to the values. If no value matches then just press enter to continue.
After the values are finished, verify that everything looks good and proceed to create the database.
NOTE: The original geolocation database won’t be overwritten, but a new file will be created with “_processed” appended to it.
citrix_adc_geolocation_conversion_3
Step 3
Depending on the size of the database, the script can take a few minutes to run. However, once completed the number of lines processed and lines skipped will be printed to the screen.
This demo only uses 10 lines however the actual database I processed for the customer had well over a million lines.
citrix_adc_geolocation_conversion_4_update
Step 4
We can see the newdb.txt_processed file created has been formatted into the style we wanted and can easily be installed onto the ADC.
citrix_adc_geolocation_conversion_5
Step 5
Transfer over the processed database in /var/netscaler/locdb/ using either winscp under ftp mode or scp.
citrix_adc_geolocation_conversion_6
Step 6
The database can be imported either through the gui or command line. Through the gui, access AppExpert > Location > Static Databases > Static Databases (IPv4) and add the file in /var/netscaler/locdb.
The NetScaler CLI command-line approach is more informative:
add locationfile /var/netscaler/locdb/newdb.txt_processed
This NetScaler CLI command shows more information about the database that the ADC can view. Lines shows the total lines including the NSGEO1.0 preamble while the next 10 entries are correctly read.
sh locationparameter
citrix_adc_geolocation_conversion_7
citrix_adc_geolocation_conversion_8
(Optional)
The nsmap command (from NetScaler CLI drop to shell) can be used as a dry run to test if an entry in the new database was working. Throw a dart anywhere with the keyboard and see if it works.
nsmap -d -t
citrix_adc_geolocation_conversion_9
Example
For this tutorial, I’ll be using a load balancer named vs-example and a responder policy. However, your implementation might be for GSLB and static proximity, which we won’t get into here. This responder policy will use the geodb to prevent access from any IP matching the Brazil country code.
citrix_adc_geolocation_conversion_11
add responder action block_example respondwith "\"The IP address you are connecting from (\"+CLIENT.IP.SRC+\") is not authorized to access our systems.\""
add responder policy block_example_pol "CLIENT.IP.SRC.MATCHES_LOCATION(\"*.bra.*.*.*\")" block_example
bind lb vserver vs-example -policyName block_example_pol -priority 1 -type REQUEST
Kick the tires and test it out in your own deployment to confirm expected functionality.
The Script
Save this code as geo.py. As a reminder, this was developed with a particular geodb in mind (NetAcuity) so it may need some restructuring for other geodatabase formats.
import sys
import os
import re
try:
_filename = sys.argv[1]
_raw_list = {}
_skipped = {}
check = {
"start ip": 0,
"end ip": 1,
"continent": 2,
"country code": 3,
"subdivision 1": 4,
"subdivision 2": 5,
"city": 6
}
check2 = ["continent", "country code", "subdivision 1", "subdivision 2", "city"]
def read_file_ipv4(_read):
# break raw file into fields
with open(_filename) as fn:
i = 0
j = 0
for line in fn:
if re.match('[0-9]+.[0-9]+.[0-9]+.[0-9]+', line):
_raw_list[i] = line.split(_delimiter)
i += 1
if _read == 1:
break
else:
_skipped[j] = line
j += 1
def confirm():
# confirm results
print()
print(f"start ip = {_raw_list[0][check.get('start ip')]} ")
print(f"end ip = {_raw_list[0][check.get('end ip')]} ")
for i in check2:
try:
print(f"{i} = {_raw_list[0][check.get(i)]}")
except:
print(f"{i} = \"\"")
def helper(i, list_index):
switcher = {
2: check.get("continent"),
3: check.get("country code"),
4: check.get("subdivision 1"),
5: check.get("subdivision 2"),
6: check.get("city")
}
if type(switcher.get(list_index)) == str:
return ""
else:
if ' ' in _raw_list[i][switcher.get(list_index)]:
return f'\"{_raw_list[i][switcher.get(list_index)]}\"'
else:
return _raw_list[i][switcher.get(list_index)]
def write_file():
# writing results to file
with open("{}_processed".format(_filename), 'w') as fout:
fout.write("NSGEO1.0\n")
fout.write("Qualifier1=Continent\n")
fout.write("Qualifier2=Country_Code\n")
fout.write("Qualifier3=Subdivision_1_Name\n")
fout.write("Qualifier4=Subdivision_2_Name\n")
fout.write("Qualifier5=City\n")
fout.write("Start\n")
for i in range(0, len(_raw_list.keys())):
fout.write("{},{},{},{},{},{},{}".format(
_raw_list[i][0], # start ip
_raw_list[i][1], # end ip
helper(i, 2), # continent
helper(i, 3), # country code
helper(i, 4), # subdivision 1
helper(i, 5), # subdivision 2
helper(i, 6), # city
))
fout.write("\n")
i += 1
print("{} lines have been processed".format(i))
print("{} lines have been skipped".format(len(_skipped.keys())))
print(f"\n{'*' * 5} Skipped Lines {'*' * 5}")
for skip in range(len(_skipped.keys())):
print(skip, " - ", _skipped[skip], end="")
if __name__ == "__main__":
if not os.path.isfile(_filename):
print("{} does not exist. Exiting program.".format(_filename))
print(f"\nUsage:\n\t{sys.argv[0]} [db-filename]")
sys.exit()
_delimiter = input("What is the delimiter? [;] \n> ") or ";"
read_file_ipv4(1)
for i in range(len(_raw_list[0])):
print(f"{i}: {_raw_list[0][i]}")
for j in check2:
try:
value = int(input(f"which field is {j} in? "))
except ValueError:
value = " "
check[j] = value
confirm()
read_file_ipv4(0)
answer = input("\ncontinue? [y|n]\n> ")
write_file() if answer.lower() == "y" else sys.exit(1)
except IndexError:
print("Missing file. Exiting program\n")
print("This program takes in the filename and performs operations and outputs filename_processed")
print(f"Usage:\n\tpython {sys.argv[0]} [db-filename]")
sys.exit(1)
Conclusion
Hopefully, this script will be useful for administrators who need to deal with non-native geolocation databases on Citrix ADC. It is a manual task and some deployments may warrant either automated distribution of the converted database to other Citrix ADCs in the GSLB mesh, or automatically pull the geodb file and convert it on a scheduled basis. This could be handled by administrators manually loading the geodb onto a share with a scheduled task that checks for new databases at certain intervals, or if the geolocation provider supports it, making API calls with a clientID and secret key to retrieve the database periodically (if the geolocation vendor has such support).
As time permits, I will build out some automation logic and follow up in another post.
Closing Tip 1: Those using GSLB Static Proximity; EDNS0\ECS should probably be enabled on your GSLB vServers as discussed here in order to enable Citrix ADC to determine the client’s true IP, and not that of the client’s local DNS server when requests are made to GSLB. This is an important consideration on the Internet with the prevalence of recursive DNS. And if the client’s DNS server is not truly local to the client (think of all those “DNS as a Service” platforms consumers tend to use), the results will likely be skewed and return a client IP which is not truly indicative of the end-users real location, rather that of the DNS server.
Closing Tip 2: If using geolocation details in expression policies such as responder or DNS Views, etc. in order for Citrix ADC to leverage the actual client IP when ECS is enabled, the expression “CLIENT.IP.SRC.MATCHES_LOCATION” may need to be changed to “DNS.REQ.OPT.ECS.IP.MATCHES_LOCATION”. This an important consideration when building policy-based DNS logic on Citrix ADC which will be covered in another Ferroque article this year, even on internal networks, when DNS recursion is enabled on DNS servers.
0 0 votes
Article Rating
Subscribe
Notify of
guest
0 Comments
Inline Feedbacks
View all comments
0
Would love your thoughts, please comment.x
()
x | __label__pos | 0.746436 |
Don't like ads? PRO users don't see any ads ;-)
Guest
Advanced Digital Logic ADLGS45PC ACPI test results
By: a guest on Oct 20th, 2011 | syntax: None | size: 10.87 KB | hits: 26 | expires: Never
download | raw | embed | report abuse | print
Text below is selected. Please press Ctrl+C to copy to your clipboard. (⌘+C on Mac)
1. -------------------------------------------------
2. Date: Thu Oct 20 15:59:20 2011
3. * *
4. * Firmwarekit (release 3) *
5. * http://www.linuxfirmwarekit.org *
6. * *
7. * *
8. * For more information on test descriptions *
9. * and details on what the PASS/INFO/WARN/FAIL *
10. * results mean, go to: Documentation/TestsInfo. *
11. * *
12. -------------------------------------------------
13.
14. KERNEL VERSION: Linux testmachine 2.6.22.9 #1 SMP Mon Oct 1 15:17:15 PDT 2007 i686 i686 i386 GNU/Linux
15.
16.
17. SUMMARY: 5 Fails, 3 Warns, 12 Pass, 20 Total
18.
19. =================================================
20. * Plugin name: acpicompile
21. * Result: FAIL
22.
23. * Title: DSDT AML verification
24. * Description: This test first disassembles the DSDT of the BIOS, and then uses the IASL compiler from Intel to recompile the code. The IASL copiler is much stricter in detecting deviations from the ACPI specification and can find numerous defects that other AML compilers cannot find. Fixing these defects increases the probability that the BIOS will operate well with a variety of operating systems.
25. ================================================
26.
27. [WARN]-Reserved method must return a value (_WAK)
28.
29. Reserved method must return a value (_WAK)
30. At line #531 of DSDT.dsl:
31.
32. | Sleep (0x64)
33. | }
34. | }
35. | }
36. |
37. >>> Method (\_WAK, 1, NotSerialized)
38. | {
39. | Store (0xFF, DBG1)
40. | If (LEqual (Arg0, 0x03))
41. | {
42.
43.
44. [FAIL]-Method local variable is not initialized (Local0)
45.
46. Method local variable is not initialized (Local0)
47. At line #566 of DSDT.dsl:
48.
49. |
50. | Scope (\_SI)
51. | {
52. | Method (_MSG, 1, NotSerialized)
53. | {
54. >>> Store (Local0, Local0)
55. | }
56. |
57. | Method (_SST, 1, NotSerialized)
58. | {
59.
60.
61. [FAIL]-Method local variable is not initialized (Local0)
62.
63. Method local variable is not initialized (Local0)
64. At line #571 of DSDT.dsl:
65.
66. | Store (Local0, Local0)
67. | }
68. |
69. | Method (_SST, 1, NotSerialized)
70. | {
71. >>> Store (Local0, Local0)
72. | }
73. | }
74. |
75. | Scope (\_GPE)
76.
77.
78. [PASS]-Tested table DSDT.dsl
79.
80. [PASS]-Tested table SSDT.dsl
81.
82. =================================================
83. * Plugin name: pciresource
84. * Result: FAIL
85.
86. * Title: Validate assigned PCI resources
87. * Description: This test is currently a placeholder and just checks the kernel log for complaints about PCI resource errors. In the future the idea is to actually perform a validation step on all PCI resources against a certain rule-set.
88. ================================================
89.
90. [FAIL]-HPET resources incorrect
91.
92. hpet_resources: 0xfed00000 is busy
93.
94. =================================================
95. * Plugin name: thermal_trip
96. * Result: FAIL
97.
98. * Title: ACPI passive thermal trip points
99. * Description: This test determines if the passive trip point works as expected.
100. ================================================
101.
102. [FAIL]-Changing passive trip point seems uneffective in Zone THRM.
103.
104. =================================================
105. * Plugin name: cpufreq
106. * Result: FAIL
107.
108. * Title: CPU frequency scaling tests (1-2 mins)
109. * Description: For each processor in the system, this test steps through the various frequency states (P-states) that the BIOS advertises for the processor. For each processor/frequency combination, a quick performance value is measured. The test then validates that:
110. 1) Each processor has the same number of frequency states
111. 2) Higher advertised frequencies have a higher performance
112. 3) No duplicate frequency values are reported by the BIOS
113. 4) Is BIOS wrongly doing Sw_All P-state coordination across cores
114. 5) Is BIOS wrongly doing Sw_Any P-state coordination across cores
115.
116. ================================================
117.
118. [INFO]-2 CPU frequency steps supported
119.
120. Frequency | Speed
121. -----------+---------
122. 1.92 Ghz | 100.0 %
123. 1.65 Ghz | 85.7 %
124.
125.
126. [FAIL]-Processors are set to SW_ANY
127.
128. [FAIL]-Firmware not implementing hardware coordination cleanly. Firmware using SW_ALL instead?
129.
130.
131. [FAIL]-Firmware not implementing hardware coordination cleanly. Firmware using SW_ANY instead?
132.
133.
134. =================================================
135. * Plugin name: dmi
136. * Result: FAIL
137.
138. * Title: DMI information check
139. * Description: This test checks the DMI/SMBIOS tables for common errors.
140. ================================================
141.
142. [FAIL]-No SMBIOS nor DMI entry point found.
143.
144. =================================================
145. * Plugin name: maxreadreq
146. * Result: WARN
147.
148. * Title: PCI Express MaxReadReq tuning
149. * Description: This test checks if the firmware has set MaxReadReq to a higher value on non-montherboard devices
150. ================================================
151.
152. [WARN]-MaxReadReq for device pci://00:00:1b.0 is low (128)
153.
154. =================================================
155. * Plugin name: edd
156. * Result: WARN
157.
158. * Title: EDD Boot disk hinting
159. * Description: This test verifies if the BIOS directs the operating system on which storage device to use for booting (EDD information). This is important for systems that (can) have multiple disks. Linux distributions increasingly depend on this info to find out on which device to install the bootloader.
160. ================================================
161.
162. [INFO]-device 80: The system boots from device 0000:00:1f.5 channel: 0 device: 0
163.
164.
165. [WARN]-device 80: No matching MBR signature (0x000dd21b) found for the boot disk
166.
167. Device sda - signature 0x44fdfe06
168.
169.
170. [INFO]-device 81 is provided by device 0000:00:1d.7 channel: 0 serial_number: 30384c5032303231
171.
172.
173. [INFO]-device 81: This disk has Linux device name /dev/sda
174.
175. =================================================
176. * Plugin name: chk_hpet
177. * Result: WARN
178.
179. * Title: HPET configuration test
180. * Description: This test checks the HPET PCI BAR for each timer block in the timer.The base address is passed by the firmware via an ACPI table.IRQ routing and initialization is also verified by the test.
181. ================================================
182.
183. [WARN]-HPET driver in the kernel is enabled, inaccurate results follow.
184.
185. [INFO]-HPET found, VendorID is: 8086
186.
187. =================================================
188. * Plugin name: battery
189. * Result: INFO
190.
191. * Title: Battery tests
192. * Description: This test reports which (if any) batteries there are in the system. In addition, for charging or discharging batteries, the test validates that the reported 'current capacity' properly increments/decrements in line with the charge/discharge state.
193.
194. This test also stresses the entire battery state reporting codepath in the ACPI BIOS, and any warnings given by the ACPI interpreter will be reported.
195. ================================================
196.
197. [INFO]-No battery information present
198.
199. =================================================
200. * Plugin name: acpiinfo
201. * Result: INFO
202.
203. * Title: General ACPI information
204. * Description: This test checks the output of the in-kernel ACPI CA against common error messages that indicate a bad interaction with the bios, including those that point at AML syntax errors.
205. ================================================
206.
207. [INFO]-DSDT was compiled by the Microsoft AML compiler
208.
209. ACPI: DSDT 7BCE3200, 72A8 (r1 INTELR AWRDACPI 1000 MSFT 3000000)
210.
211. =================================================
212. * Plugin name: DMAR
213. * Result: INFO
214.
215. * Title: (experimental) DMA Remapping (VT-d) test
216. * Description: Verify if DMA remapping is sane.
217. ================================================
218.
219. [INFO]-No DMAR ACPI table found.
220.
221. =================================================
222. * Plugin name: mtrr
223. * Result: PASS
224.
225. * Title: MTRR validation
226. * Description: This test validates the MTRR setup against the memory map to detect any inconsistencies in cachability.
227. ================================================
228.
229. =================================================
230. * Plugin name: SUN
231. * Result: PASS
232.
233. * Title: SUN duplicate test
234. * Description: This makes sure that each SUN (Slot Unique Number) that is called in the DSDT through the Name() method is unique, no duplicates should be found.
235. ================================================
236.
237. [PASS]-Tested _SUN ids, successfully found no duplicates
238.
239. =================================================
240. * Plugin name: fan
241. * Result: PASS
242.
243. * Title: Fan tests
244. * Description: This test reports how many fans there are in the system. It also checks for the current status of the fan(s).
245. ================================================
246.
247. [PASS]-Fan FAN status is: on
248.
249. =================================================
250. * Plugin name: virt
251. * Result: PASS
252.
253. * Title: VT/VMX Virtualization extensions
254. * Description: This test checks if VT/VMX is set up correctly
255. ================================================
256.
257. =================================================
258. * Plugin name: ebda
259. * Result: PASS
260.
261. * Title: EBDA region
262. * Description: This test validates if the EBDA region is mapped and reserved in the E820 table.
263. ================================================
264.
265. [PASS]-EBDA region is correctly reserved in the E820 table.
266.
267. =================================================
268. * Plugin name: os2gap
269. * Result: PASS
270.
271. * Title: OS/2 memory hole test
272. * Description: This test checks if the OS/2 15Mb memory hole is absent
273. ================================================
274.
275. [PASS]-Successfully found no 15mb memory hole
276.
277. =================================================
278. * Plugin name: ethernet
279. * Result: PASS
280.
281. * Title: Ethernet functionality
282. * Description: This test is currently a placeholder for a more advanced ethernet test. Currently the only check performed is that a link is acquired within 45 seconds of enabling the interface. 45 seconds is close to the value most Linux distributions use as timeout value.
283.
284. In the future the plan is to also perform actual data transfer tests as part of the ethernet test, to validate interrupt routing and other per-NIC behaviors.
285. ================================================
286.
287. =================================================
288. * Plugin name: apicedge
289. * Result: PASS
290.
291. * Title: (experimental) APIC Edge/Level check
292. * Description: This test checks if legacy interrupts are edge and PCI interrupts are level
293. ================================================
294.
295. =================================================
296. * Plugin name: microcode
297. * Result: PASS
298.
299. * Title: Processor microcode update
300. * Description: This test verifies if the firmware has put a recent version of the microcode into the processor at boot time. Recent microcode is important to have all the required features and errata updates for the processor.
301. ================================================
302.
303. | __label__pos | 0.909077 |
Category:
What is Secret Key Cryptography?
Secret key cryptography uses one key to code and decode.
Satellite companies regularly update their de-scrambling keys.
Numbers, letters, and symbols can be substituted for readable information in a cipher.
During the Cold War, secret key cryptography was used to protect the phone line between the White House and Kremlin.
Article Details
• Written By: Richard Horgan
• Edited By: Jenn Walker
• Last Modified Date: 10 August 2015
• Copyright Protected:
2003-2015
Conjecture Corporation
• Print this Article
Free Widgets for your Site/Blog
Neither Orville nor Wilbur Wright graduated from high school or ever got married. more...
August 31 , 1897 : Thomas Edison patented the first movie projector. more...
The art of cryptography, or communicating in code, can be divided into three broad categories: public key cryptography, which is a code that uses one key for encryption and a separate key for decryption; hash functions, which rely on mathematical conversions to permanently encrypt the information; and secret key cryptography, which is a code that uses the same key for both the encryption and decryption of the transmitted data. The last category derives its name from the fact that both the sender and receiver must keep their key a secret in order to prevent messages from being successfully intercepted by a third party.
Secret key cryptography, also known as symmetric encryption, can be separated into two main types, based on the type of coding scheme used. Stream ciphers, for example, allow the sender and receiver to constantly update and change the secret key; block ciphers, on the other hand, consistently encode one block of data at a time. Furthermore, self-synchronizing stream ciphers feed off the previous volume of data, as opposed to synchronous stream ciphers, which work off a key that is independent of the volume and progression of the message.
Ad
There are four major modes of secret key cryptography block cipher operation. Electronic Codebook mode (ECB) corresponds to the basest level of encryption; Cipher Block Chaining (CBC) incorporates a sender-receiver feedback layer into the ECB equation; Cipher Feedback (CFB) allows data to be encrypted at a much smaller character level; and Output Feedback (OFB) employs an even more complex, independent coding algorithm to prevent two blocks of data from being coded in the same, identical way.
All in all, secret key cryptography is a mathematician's paradise, able to be made more complex by both the intricacies of the governing algorithm and the frequency with which that algorithm, or key, is changed. One everyday application that makes use of secret key cryptography is the ongoing transmission of paid television content to a cable or satellite subscriber. As the piracy of these signals has increased, so too have the efforts of cable and satellite companies to constantly update and download new de-scrambling keys to the smart cards inside each receiver.
A complex form of secret key cryptography was used to protect the Cold War Era phone line that directly linked the White House and the Kremlin. Known as a One-Time Pad (OTP), it generated a very large set of random numbers to be used only once as the decoding key. This type of encryption is said to be impossible to break when used properly.
Ad
You might also Like
Recommended
Discuss this Article
Post your comments
Post Anonymously
Login
username
password
forgot password?
Register
username
password
confirm
email | __label__pos | 0.82329 |
RELAX NG schema
namespace a = "http://relaxng.org/ns/compatibility/annotations/1.0"
plistObject =
array | data | date | dict | real | integer | \string | true | false
plist = element plist { attlist.plist, plistObject }
attlist.plist &= [ a:defaultValue = "1.0" ] attribute version { text }?
# Collections
array = element array { attlist.array, plistObject* }
attlist.array &= empty
dict = element dict { attlist.dict, (key, plistObject)* }
attlist.dict &= empty
key = element key { attlist.key, text }
attlist.key &= empty
# - Primitive types
\string = element string { attlist.string, text }
attlist.string &= empty
data = element data { attlist.data, text }
attlist.data &= empty
# Contents interpreted as Base-64 encoded
date = element date { attlist.date, text }
attlist.date &= empty
# Contents should conform to a subset of ISO 8601 (in particular, YYYY '-' MM '-' DD 'T' HH ':' MM ':' SS 'Z'. Smaller units may be omitted with a loss of precision)
# Numerical primitives
true = element true { attlist.true, empty }
attlist.true &= empty
# Boolean constant true
false = element false { attlist.false, empty }
attlist.false &= empty
# Boolean constant false
real = element real { attlist.real, text }
attlist.real &= empty
# Contents should represent a floating point number matching ("+" | "-")? d+ ("."d*)? ("E" ("+" | "-") d+)? where d is a digit 0-9.
integer = element integer { attlist.integer, text }
attlist.integer &= empty
start = plist
Previous | Next | Top | Cafe con Leche
Copyright 2005 Elliotte Rusty Harold
[email protected]
Last Modified September 23, 2005 | __label__pos | 0.999858 |
Take the 2-minute tour ×
Mathematics Stack Exchange is a question and answer site for people studying math at any level and professionals in related fields. It's 100% free, no registration required.
I have this exercise in my worksheet: $$\lim_{x\to-\infty}{x+e^{-x}}$$ I am always ending up with $-∞+∞$ or $\frac{∞}{∞}$. It says the answer is $+∞$, but how can I get that?
share|improve this question
Do you just want help with the problem in the title or more than one problem? – DanZimm Jun 5 '13 at 20:03
add comment
7 Answers
up vote 16 down vote accepted
Negative numbers make me nervous, so let $t=-x$. We want $$\lim_{t\to \infty} (e^t-t).$$ The answer is obvious, $e^t$ is much larger than $t$ if $t$ is large. If you want to be formal, after a (short) while $t\lt \frac{e^t}{2}$, so after a short while $e^t-t\gt \frac{1}{2}e^t$.
share|improve this answer
add comment
Using $e^x\ge 1+x$ for all $x\in\mathbb R$, we find for $x\ge-1$ that $e^x=(e^{x/2})^2\ge(1+\frac x2)^2= 1+x+\frac14x^2$, hence $$ \lim_{x\to-\infty}(x+e^{-x})=\lim_{x\to+\infty}(-x+e^{x}) \ge\lim_{x\to+\infty}(1+\frac14x^2)=+\infty.$$
share|improve this answer
add comment
Here is a textbook way to solve this problem using L'Hopital's Rule:
$$\lim_{x\to-\infty}x+e^{-x}=\lim_{x\to-\infty}\frac{xe^x+1}{e^x}$$
For the numerator we have:
$$\lim_{x\to-\infty}xe^x=\lim_{x\to-\infty}\frac{x}{e^{-x}}=\lim_{x\to-\infty}\frac{1}{-e^{-x}}=0$$
It follows that the numerator approaches $1$, and the denominator approaches $0$ from the right. The limit is thus $+\infty$.
share|improve this answer
may you give an upvote in order for me to vote for your answer since I have < 15 reputation so upvote in not allowed :D – A.Jouni Jun 5 '13 at 20:25
add comment
"$-\infty+\infty$" is an indeterminate form, meaning the limit could be any finite number or could be $+\infty$ or could be $-\infty$, depending on what functions you're working with.
Look at what happens when $x$ goes from $-100$ to $-101$, one step closer to $-\infty$. Then $e^{-x}$ gets multiplied by $e$, so it gets to be more than two-and-a-half times as big. But the other term, $x$ decreases by only one. The result is that the function gets immensely bigger, in the "$+$"-direction.
share|improve this answer
add comment
$x+e^{-x}=1+\frac{x^2}{2!}-\frac{x^3}{3!}+\cdots$ which clearly tends to infinity as $x\to -\infty$.
share|improve this answer
add comment
I'll assume $x\in \mathbb{R}$. Then the continuous function $f(x) = x+e^{-x}$ goes to $+\infty$ as $x\rightarrow -\infty$. This can visually be seen by graphing the function, but here is a rigorous proof:
Since $f$ is continuous, then $lim_{x\rightarrow y} f(x) = f(y)$, and since $e^x$ increases faster than any power of $x$ (see baby Rudin (chapter 8) for this fun fact), it follows that $\lim_{x\rightarrow - \infty} f(x) = +\infty$. This fact cited from Rudin justifies why $e^z$ dominates $z$ in the expression $e^z -z$ and thus why $e^z - z$ goes to $+\infty$ as $z\rightarrow +\infty$, i.e. why $f(x)\rightarrow +\infty$ as $x\rightarrow -\infty$.
Corollary from the facts presented herein: let $n>0$ be a positive integer. Then $$x^n + e^{-x}$$ goes to $+\infty$ as $x\rightarrow -\infty$. There are obviously several other generalizations.
share|improve this answer
This is wrong. $e^x$ isn't the fastest increasing continuous function...there is no such function. $e^{e^x}$ for instance increases faster. – JLA Jun 5 '13 at 22:43
you're right. i've edited – doncorleone Jun 5 '13 at 22:56
don corleone expresses his sincerest apologies and now claims to have one of the best answers here – doncorleone Jun 5 '13 at 22:58
add comment
The given expression does not have a limit. That is to say, it does not converge on a value as $x$ grows large, negative.
As $x$ grows large and negative, the $x$ term grows large and negative. The $e^{-x}$ term grows large and positive, and its growth is faster than that of the $x$ term, because it is an exponential function whereas $x$ is polynomial. Exponentials grow faster than polynomials of all orders. Therefore, the exponential term dominates and the overall expression grows large, and positive.
However, it does so without limit. We cannot say that the limit is $+\infty$, because that is nonsense. A limit, when it exists, is a number, whereas $+\infty$ is not a number and does not substitute for a limit that doesn't exist.
share|improve this answer
3
Even though the limit doesn't exist, it's still the case that improper limits are both common and useful. Saying that $f(x) \to \infty$ as $x\to\infty$ gives a lot more information about the behaviour of $f$ than just saying that the limit doesn't exist. – mrf Jun 5 '13 at 21:05
@mrf but $f(x)\rightarrow\infty$ as $x\rightarrow\infty$ is not exactly the same as $\displaystyle\lim_{x\to\infty}f(x) = \infty$. – Kaz Jun 5 '13 at 21:57
2
@Kaz what you are saying goes against convention, it is common to write things like $\lim\limits_{x\to\infty}f(x)=\infty$. – JLA Jun 5 '13 at 22:46
Well, it is wrong, because you're writing an equation whose right hand side is infinity. Convention be damned. There is also a convention that dividing by inifinity neatly yields zero, and vice versa. If you want to write that, you have to clarify that you're giving a different meaning to the $=$ symbol which is tied to the limit notation on the far left, and not forming an equation. – Kaz Jun 5 '13 at 22:48
2
@Kaz: I don't think that needs a special convention. The common convention says that $$ \lim_{x\to\infty}x^2=\infty $$ is valid (and understood). Limits are usually understood to be taken in the two-point compactification of $\mathbb{R}$ or the one-point compactification of $\mathbb{C}$. – robjohn Jun 5 '13 at 23:32
add comment
Your Answer
discard
By posting your answer, you agree to the privacy policy and terms of service.
Not the answer you're looking for? Browse other questions tagged or ask your own question. | __label__pos | 0.9765 |
UT5. sockets en java
comunicación de una máquina cliente con el servidor
eugeniaperez.es
UT 5: sockets
1.Repaso
Text
eugeniaperez.es
Al ejecutarlo comprobamos cómo el servidor funciona, pero solo es capaz de manejar un cliente en cada momento...
UT 5: sockets
1.Repaso
Text
eugeniaperez.es
Idealmente un servidor debe ser multicliente, es decir, tratar con múltiples clientes simultáneamente. ¿Cómo...?
Servidor multihilo...
UT 5: sockets
Servidor multihilo
Text
eugeniaperez.es
La idea es la misma pero se trata de colocar la parte relativa al cliente (o al manejador del cliente del servidor) en una clase que soporte Threads de Java.
SERVIDOR MULTIHILO
Servidor multihilo
eugeniaperez.es
UT 5: sockets
Servidor multihilo
Text
eugeniaperez.es
SERVIDOR MULTIHILO CON INTERFAZ GRÁFICA
Mismo servidor pero en lugar de mostrar los mensajes por pantalla en el cliente, se incluye una aplicación de escritorio.
UT 5: sockets
Servidor multihilo
Text
eugeniaperez.es
en java las INTERFAZ GRÁFICAs
De escritorio... Se crean con Swing.
UT 5: sockets
Servidor multihilo
Text
eugeniaperez.es
REALIZA LA ACTIVIDAD 2 PÁG. 191
UT 5: sockets
Manejo de URLs
Text
eugeniaperez.es
Manejo de urlS para crear sockets
Socket client = new Socket(dir_server, PORT);
Para indicar la URL del servidor podríamos utilizar la clase de java.net URL.
UT 5: sockets
Manejo de URLs
Text
eugeniaperez.es
Manejo de urlS para crear sockets
URL absoluta:
try {
URL url = new URL("http://www.google.es");
} catch (MalformedURLException ex) {
Logger.getLogger(URLExample.class.getName()).log(Level.SEVERE, null, ex);
}
En caso de que no sea posible construir la URL, se obtendrá una excepción de tipo MalformedURLException
UT 5: sockets
Manejo de URLs
Text
eugeniaperez.es
Manejo de urlS para crear sockets
o URLs relativas:
<a href="page1.html">Index</a>
<a href="page2.html">About</a>
URL url = new URL("http://www.google.es/");
URL index = new URL(url, "index.html");
UT 5: sockets
Manejo de URLs
Text
eugeniaperez.es
Manejo de urlS para crear sockets
URL admite varios constructores:
URL url2 = new URL("http","google.es","/pages/page1.html");
URL url3 = new URL("http", "google.es", 80, "/pages/page1.html");
URL url4 = new URL("http://google.es:80/pages/page1.html");
UT 5: sockets
Manejo de URLs
Text
eugeniaperez.es
Manejo de urlS para crear sockets
URL con caracteres especiales:
URL url5 = new URL("http://google.es/initial%20pages/hello%20world/");
URI uri = new URI("http","google.es","/initial pages/hello world/");
URL url6 = uri.toURL();
UT 5: sockets
Manejo de URLs
Text
eugeniaperez.es
Manejo de urlS para crear sockets
Gracias al objeto URL podemos obtener información:
URL url = new URL("http://www.google.es:80/wordpress/index.php?city=Pamplona&temperature=20#head");
System.out.println("URL visited: Displaying information:");
System.out.println("----------------------------------------");
System.out.println("protocol = " + url.getProtocol());
System.out.println("authority = " + url.getAuthority());
System.out.println("host = " + url.getHost());
System.out.println("port = " + url.getPort());
System.out.println("path = " + url.getPath());
System.out.println("query = " + url.getQuery());
System.out.println("file name = " + url.getFile());
System.out.println("ref = " + url.getRef());
UT 5: sockets
Manejo de URLs
Text
eugeniaperez.es
aplicación de la clase url
1. Creación de Socket:
Socket client = new Socket(url.getHost(), url.getPort());
2. Leyendo el HTML mediante Screenscraping:
public static String getHTMLContent(URL url) throws IOException {
String htmlCode = "";
BufferedReader in = new BufferedReader(
new InputStreamReader(url.openStream()));
String inputLine;
while ((inputLine = in.readLine()) != null) {
htmlCode += inputLine;
}
in.close();
return htmlCode;
}
UT5. PSP Sockets III
By eugenia_perez
UT5. PSP Sockets III
• 1,045 | __label__pos | 0.917839 |
Git is a flexible and powerful version control system. While Git offers significant functionality over legacy centralized tools like CVS and Subversion, it also presents so many options for workflow that it can be difficult to determine what is the best method to commit code to a project. The following are the guidelines I like to use for most software projects contained within a Git repository. They aren't applicable to every Git project (especially those hosted on drupal.org or GitHub), but I've found that they help ensure that our own projects end up with a reasonable repository history.
Small, logical commits
CVS and Subversion encouraged large, single commits due to limitations in their branching model. This is especially apparent with the Drupal project, where a single-commit patch-based workflow is still in use. There are a few problems with large monolithic commits:
• git blame becomes much less useful, as the commit message on given lines of code will usually be something like "Ticket #123: Add progress bars to video series." instead of "Ticket #123: Add updated jQuery UI library for progress bars."
• History of the development of code is lost. With large commits, the process of code development is obscured and not discoverable within git.
• git bisect becomes near useless. Even when debugging manually by checking out different commits, having granular commits makes it much simpler to find the lines of code that are actually the source of the bug.
For a Drupal project, a few guidelines I use for commit size include:
• Always add or update modules in their own commits. Never bundle multiple modules in the same commit unless there is tight coupling between the modules.
• When writing new modules, write stub functions and phpdoc comments first. Then, come back to each function and fill them out, committing along the way.
• Always write and commit API-level functions before writing and committing consumers of those functions (such as forms, menu callbacks, and theme code).
• If a commit is more than 100 lines of code, re-evaluate it to see if it's actually a few different logical changes.
• Always commit unrelated bug fixes to your branch as separate commits, or as a separate commit on a new branch.
Always review code before committing it
It's common for introductory git tutorials to suggest always committing code with git commit -a without accurately explaining what the command does. By treating the commit command like how other legacy VCS' do, one of the the most useful features of Git is ignored. Git introduces a new tool to the version control workflow interchangeably called the "staging area" or the "index". It sounds complicated, but it's actually a very simple tool. In essence, the index is a place to indicate what exactly to include in the next commit. This can be as broad as an entire directory or file, or as granular as specific changes in a file (excluding other unrelated changes). git commit -a is just shorthand for telling git to add all uncommitted changes (except for new files) to the index, and then immediately start the commit process. A much better method for the commit process is to explicitly review what is to be committed. Git includes an awesome tool for this in the form of git add --patch. This command will show changes in your code, and ask if they should be committed or not. Sometimes, Git will show a large diff that is actually a few small changes. In this case, "s" will split the diff into smaller chunks that can be individually acted on. If needed, the change can be manually edited to indicate exactly what should be committed. The commit process ends up looking something like this:
1. git add --patch to add changes to the index.
2. git diff --cached to do a final review of what is to be committed.
3. git commit to commit what is in the index.
4. Repeat at step 1 until there is nothing left to commit, or there are uncommitted changes that need more work.
One small caveat is that git add --patch will not add brand-new files to the index, but only files that have previously been added to the repository. In that case (such as adding a new module) use git add directly to start tracking the new files.
Never rebase shared commits
Rebasing is a powerful feature of Git that is both awesome and dangerous. Rebasing allows you to rewrite the history of a branch into something new. Most commonly git rebase is used to move where a branch appears to start from and to rewrite it to be on top of a new commit. git rebase --interactive is also an excellent tool for rewriting commits to amend in typo fixes, rewrite commit messages, or change the order of commits to accurately describe dependencies in code. With GitHub projects in particular, rebasing is commonly used to keep history straight and free of merge commits. The issue with rebasing shared (or pushed) commits is that doing so requires a "forced push" and automatically invalidates any work others might be doing on that branch of code. It obscures the actual development history of a branch in favour of arbitrary cleanliness of the Git history graph. Rather than forbid rebasing entirely, I have a rule that I never rebase commits that I've pushed to a remote repository. This ensures I don't break anyone else's code that they've committed to my branch, and keeps a log of any bugs or mistakes I've fixed.
Never delete unmerged remote branches
One serious difference between Git and Subversion is that branch addition and removal are not commits themselves. A Git branch is just a pointer to a commit. While in Subversion a deleted branch can be restored just by checking out an old revision, in Git a commit not pointed to by any branch will eventually be removed by the garbage collection process. So, how do we handle obsolete branches so they can be referenced if needed, without cluttering up the git branch listing? git merge -s ours obsolete-branch This will merge obsolete-branch into the current branch, but completely discarding the changes in the obsolete branch. I usually make it clear in the commit message for the merge that the branch is being discarded instead of a true merge. git merge -s ours --edit obsolete-branch If the old changes are ever needed for reference or to be resurrected, it's as easy as checking out the last commit on the merged branch and creating a new branch pointing to it.
Make your Git toolbox your own
Git is easily extensible and configurable. It's possible to add custom git commands to ~/.gitconfig or to write entirely new top-level commands in whatever language you prefer. Git is best thought of as being more like another Unix shell than a monolithic program. I'm partial to git-sh, a tool that exposes git commands directly ("commit" instead of "git commit", for example) and works nicely with autocomplete and a bash prompt. Other extensions to simplify common Git commands and workflows are easily searchable on Google or GitHub. These guidelines are just some of what I use to help organize and manage projects in Git. Have any great tools or suggestions I missed? Hop on down to the comments and let us know!
Andrew Berry
Thumbnail
Andrew Berry is an architect and developer who works at the intersection of business and technology.
Featured Work
Latest Resources
Latest Podcasts
Let's Connect
Want to learn more about working with us or just say hello?
Contact Us | __label__pos | 0.51522 |
How to Restart HBOMax App
Are you tired of dealing with glitches and slow performance on your HBOMax app? Well, don't fret! In this article, we'll show you how to restart the HBOMax app on your devices and get back to streaming your favorite shows and movies in no time.
Whether you're using an iOS device, Android device, smart TV, or gaming console, we've got you covered.
So, let's dive in and get your HBOMax app running smoothly again!
Key Takeaways
• Restarting the HBOMax app can resolve common issues and improve performance.
• Clearing the cache and data can fix glitches and errors.
• Regularly updating the app ensures bug fixes and improvements.
• Force quitting the app can resolve unresponsive or frozen situations.
Understanding the Importance of Restarting the HBOMax App
You should understand the importance of restarting the HBOMax app to ensure optimal performance. Troubleshooting common issues with the app can be frustrating, but restarting it can often resolve many of these problems.
Clearing the cache and data is a simple step that can help fix any glitches or errors that may be causing issues. Additionally, checking for app updates regularly is crucial as these updates often contain bug fixes and improvements.
Force quitting the app, especially if it's frozen or unresponsive, can also help resolve any performance issues. If all else fails, contacting customer support is always an option, as they can provide further assistance and guidance.
Restarting the HBOMax App on Ios Devices
To restart the HBOMax app on your iOS device, simply swipe up from the bottom of the screen, locate the app, and swipe it up to close it. This troubleshooting method can help resolve common issues such as freezing or slow performance. In addition to restarting the app, there are other steps you can take to ensure a smooth experience. Clearing the app cache can help free up storage and improve performance. Updating the app regularly ensures you have the latest bug fixes and features. If the app continues to give you trouble, force quitting the app can help reset any temporary glitches. If all else fails, contacting customer support can provide further assistance and guidance. Remember, restarting the HBOMax app is just one of the many troubleshooting steps you can take to optimize your viewing experience.
See also Is Doctor Strange on Vudu?
Troubleshooting Steps Details
Clear app cache Free up storage and improve performance
Update the app Get the latest bug fixes and features
Force quit the app Reset any temporary glitches
Contact customer support Seek assistance and guidance
Restarting the HBOMax App on Android Devices
If your Android device is experiencing issues with the HBOMax app, try restarting it and clearing the app cache for a smoother streaming experience. Clearing the app cache can help resolve various issues, such as freezing or slow performance.
To clear the cache, go to your device's Settings, then Apps or Application Manager. Find the HBOMax app and tap on it. From there, you can tap on 'Clear cache' to remove temporary files that may be causing the problem.
If clearing the cache doesn't solve the issue, you can also try force stopping the app and then reopening it. Additionally, make sure you have the latest version of the app installed.
If all else fails, you may need to uninstall and reinstall the app to troubleshoot any underlying issues.
Restarting the HBOMax App on Smart TVs
One way to quickly resolve any issues with the HBOMax app on your smart TV is by restarting it. This troubleshooting tip can help fix common issues such as freezing, buffering, or app crashes. To restart the app, navigate to the settings menu on your smart TV and find the option to restart or power off. After restarting, check for any app updates that may be available. Keeping your app up to date ensures that you have the latest bug fixes and improvements. If the issue persists, you can reach out to HBOMax customer support for further assistance. They can provide additional troubleshooting tips or help troubleshoot any specific issues you may be experiencing with streaming quality.
See also How much is Venom: Let There Be Carnage on Vudu?
Troubleshooting Tips Common Issues Customer Support
Restart the app Freezing Contact HBOMax
Check for updates Buffering Support
Reach out to App crashes
customer support
for assistance
Restarting the HBOMax App on Gaming Consoles
You can easily restart the HBOMax app on gaming consoles by navigating to the settings menu and selecting the option to restart or power off.
If you're experiencing any issues with the app, there are several troubleshooting tips you can try. One common solution is to clear the cache of the HBOMax app. This can help resolve any temporary glitches or errors that may be causing the app to malfunction.
Another option is to force close the app and then reopen it. This can be done by accessing the app switcher or task manager on your gaming console.
If the issues persist, you may want to consider reinstalling the app.
Lastly, it's important to regularly check for software updates for both your gaming console and the HBOMax app. This ensures that you have the latest features and bug fixes, which can improve app performance.
Frequently Asked Questions
Can Restarting the HBOMax App Solve Buffering Issues While Streaming?
Restarting the HBOMax app can help resolve buffering issues while streaming. Troubleshooting steps include checking your internet connection, clearing cache and data, checking for app updates, and contacting customer support if problems persist.
Will Restarting the HBOMax App Delete My Downloaded Content?
Restarting the HBOMax app is a troubleshooting step that can help resolve buffering issues while streaming. It won't delete your downloaded content. If problems persist, try clearing cache, reinstalling the app, contacting customer support, or checking for app updates.
See also Is Pretty Woman on Vudu?
How Often Should I Restart the HBOMax App to Ensure Optimal Performance?
To ensure optimal performance and maximize streaming quality, it is recommended to restart the HBOMax app periodically. This app troubleshooting technique refreshes the app and helps with app maintenance, improving overall performance.
Is There a Specific Time of Day When It Is Recommended to Restart the HBOMax App?
To ensure optimal performance and resolve common streaming issues, it is recommended to restart the HBOMax app regularly. Follow the troubleshooting guide, adjust app settings, and take necessary troubleshooting steps for the best results.
Can Restarting the HBOMax App Help Resolve Login or Authentication Issues?
Restarting the HBOMax app can help resolve login or authentication issues. Troubleshooting steps include clearing cache data, reinstalling the app, and checking for updates. If problems persist, customer support assistance is recommended.
Conclusion
In conclusion, restarting the HBOMax app is a simple yet crucial step to enhance your streaming experience. Just imagine, like a magical reset button, it can banish those pesky glitches and bring back the smooth streaming you deserve.
Whether you're on an iOS device, Android device, smart TV, or gaming console, following the steps mentioned above will ensure that you can enjoy your favorite shows and movies without any interruptions.
So don't hesitate, give that app a fresh start and let the entertainment flow! | __label__pos | 0.807522 |
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!
Problem with these types of integrals
1. Mar 19, 2006 #1
For some reason I just have a problem with these types of integrals..if someone could show me how to do one it would save me a lot of headaches..
1) x+2/(x^2-4) from 0 to 1
This just simplifies to 1/(x-2) so this should be ln(1-2)-ln(0-2)=ln(-1)-ln(-2)?
2) x/x+1, x/x^2+2...Do you use by parts? I cannot get any of these right where its of this nature..thanks so much
2. jcsd
3. Mar 19, 2006 #2
For number one, you integrated correctly. However, remember your logarithm rules.
[tex] ln(a) - ln(b) = ln(a/b) [/tex]
Here's a hint for two: If you have something such as[tex] \int \frac{x dx}{x+a} = \int \frac{x+a-a dx}{x+a} = \int 1dx - \int \frac{a dx}{x+a} [/tex]
You can generalize that further if you have the case x+ k on top. I think that may help.
Furthermore, on the x/x^2 + 2, try u-substitution.
Last edited: Mar 19, 2006
4. Mar 20, 2006 #3
VietDao29
User Avatar
Homework Helper
This is wrong!!!
You are forgetting the absolute value. You should note that in the reals, ln(x) is only defined for positive x. Hence, there's no such thing as ln(-1), or ln(-2).
You can look again at the table of integrals, you may find something that reads:
[tex]\frac{dx}{x} = \ln |x| + C[/tex]
For the first one, as EbolaPox has pointed out, you should split it into 2 integrals:
[tex]\int \frac{x}{x + 1} dx = \frac{x + 1 - 1}{x + 1} dx = \int dx - \int \frac{dx}{x + 1}[/tex].
For the second one, if your numerator is 1 degree less than your denominator, then it's common to try to take the derivative of the denominator, then rearrange the numerator so that it contains a multiple of the derivative of the denominator. Your answer will have a ln part and an arctan part (sometimes it does not have an arctan part).
[tex]\int \frac{x}{x ^ 2 + 2} dx[/tex]
Now:
(x2 + 2)' = 2x. Now try to do some manipulation on the numerator to get a multiple of 2x:
[tex]\int \frac{x}{x ^ 2 + 2} dx = \int \frac{\frac{1}{2} \times 2x}{x ^ 2 + 2}[/tex]
Now use the u-substitution:
u = x2 + 2, we have:
[tex]\int \frac{x}{x ^ 2 + 2} dx = \frac{1}{2} \int \frac{du}{u} = \frac{1}{2} \ln |u| + C = \frac{1}{2} \ln |x ^ 2 + 2| + C = \frac{1}{2} \ln (x ^ 2 + 2) + C[/tex].
Since x2 + 2 is positive for all x, so:
|x2 + 2| = x2 + 2.
Can you get it? :)
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook | __label__pos | 0.99992 |
MNYC '17: Bells
View as PDF
Submit solution
Points: 17 (partial)
Time limit: 1.0s
Memory limit: 256M
Author:
Problem type
There are N (1 \le N \le 100\,000) bells arranged in a line, labelled 1 to N. The i^\text{th} bell has a frequency of f_i Hz (1 \le f_i \le 10^8). There are Q (1 \le Q \le 50\,000) operations to perform.
There are two types of operations:
• 1 i f Replace the i^\text{th} bell with one with a frequency of f Hz.
• 2 l r Output the number of distinct frequencies between the l^\text{th} and r^\text{th} bell (inclusive).
There will be at most 1000 distinct frequencies at a time.
Fast input may be required.
Constraints
For 10% of the points, 1 \le N, Q \le 100.
For 90% of the points, 1 \le N \le 100\,000, 1 \le Q \le 50\,000.
Input Specification
The first line contains two space separated integers, N Q, respectively the number of bells and the number of queries.
The next line contains N space separated integers, the frequency of the bells.
The next Q lines each contain a query in the format described above.
Output Specification
Output a single integer on its own line for each type 2 query.
Sample Input
6 3
1 2 1 4 4 2
2 1 6
1 2 1
2 1 3
Sample Output
3
1
Explanation for Sample Output
In the beginning, there are only 3 distinct frequencies which the bells have, 1 Hz, 2 Hz, and 4 Hz. After switching the second bell with one with a frequency of 1 Hz. There is only one distinct frequency among the first 3 bells.
Comments
There are no comments at the moment. | __label__pos | 0.913819 |
设计模式|抽象工厂
设计模式|抽象工厂
意图
抽象工厂提供一个接口，用来创建相关的对象家族，而不是和工厂方法一样，创建一个对象。
抽象工厂
抽象工厂模式的各个角色：
• 抽象工厂角色（Factory），工厂方法模式的核心，是具体工厂角色必须实现的接口或者必须继承父类。在 Java 类中他是抽象类或者接口来实现的。
• 具体工厂角色(ConcreteFactory)，这个是实现抽象工厂接口的具体工厂类。
• 抽象产品角色（Product）：抽象工厂模式所创建对象的基类，也就是产品对象共同父类。
• 具体产品角色（ConcreteProduct）,这个角色实现了抽象产品橘色所定义的接口。
抽象工厂模式创建的是对象家族，也就是很多对象而不是一个对象。抽象工厂模式用了工厂方法模式来创建单一对象。 AbstractFactory 中的 createProductA() 和 createProductB() 都可让子类实现，这两个方法单独来看就是在创建一个对象。
Client 要通过 AbstaractFactoty 同时调用两个方法创建两个对象，这里的两个对象属于同一类。
类图
[外链图片转存失败,源站可能有防盗链机制,建议将图片保存下来直接上传(img-0gQY5mR6-1605330939691)(https://imgkr2.cn-bj.ufileos.com/6e971463-1286-4c01-b0b3-cac93716f299.png?UCloudPublicKey=TOKEN_8d8b72be-579a-4e83-bfd0-5f6ce1546f13&Signature=q331T7PR4y4xInJNDjEWwGrJgLE%253D&Expires=1605411669)]
代码实现
产品抽象类
public class AbstractProductA {
}
public class AbstractProductB {
}
产品聚类
public class ProductA1 extends AbstractProductA {
}
public class ProductA2 extends AbstractProductA {
}
public class ProductB1 extends AbstractProductB {
}
public class ProductB2 extends AbstractProductB {
}
抽象工厂类
public abstract class AbstractFactory {
abstract AbstractProductA createProductA();
abstract AbstractProductB createProductB();
}
抽象工厂具体实现
public class ConcreteFactory1 extends AbstractFactory {
AbstractProductA createProductA() {
return new ProductA1();
}
AbstractProductB createProductB() {
return new ProductB1();
}
}
public class ConcreteFactory2 extends AbstractFactory {
AbstractProductA createProductA() {
return new ProductA2();
}
AbstractProductB createProductB() {
return new ProductB2();
}
}
客户端调用
public class Client {
public static void main(String[] args) {
AbstractFactory abstractFactory = new ConcreteFactory1();
AbstractProductA productA = abstractFactory.createProductA();
AbstractProductB productB = abstractFactory.createProductB();
// do something with productA and productB
}
}
参考资料
• https://blog.csdn.net/chitangchan3789/article/details/101004317
欢迎关注公众号: 程序员开发者社区
在这里插入图片描述
wangxiaoming CSDN认证博客专家 架构 Spring Boot Redis
博客是很好的总结和记录工具，如果有问题，来不及回复，关注微信公众号：程序员开发者社区，获取我的联系方式，向我提问，也可以给我发送邮件,联系 [email protected]
已标记关键词 清除标记
©️2020 CSDN 皮肤主题: Age of Ai 设计师:meimeiellie 返回首页
实付 19.89元
使用余额支付
点击重新获取
扫码支付
钱包余额 0
抵扣说明：
1.余额是钱包充值的虚拟货币，按照1:1的比例进行支付金额的抵扣。
2.余额无法直接购买下载，可以购买VIP、C币套餐、付费专栏及课程。
余额充值 | __label__pos | 0.998839 |
Relates a concept to a concept that is more general in meaning. Broader concepts are typically rendered as parents in a concept hierarchy (tree). has broader Concept 2022-05-05T10:25:03 aile wing BIO anatomy and body fluids BIO anatomie et fluides biologiques Thésaurus INRAE INRAE thesaurus Thésaurus INRAE appareil locomoteur The preferred lexical label for a resource, in a given language. skos:prefLabel, skos:altLabel and skos:hiddenLabel are pairwise disjoint properties. The range of skos:prefLabel is the class of RDF plain literals. A resource has no more than one value of skos:prefLabel per language tag, and no more than one value of skos:prefLabel without language tag. preferred label The subject is an instance of a class. type Relates a resource (for example a concept) to a concept scheme in which it is included. is in scheme | __label__pos | 0.909017 |
Server Fault is a question and answer site for system and network administrators. It's 100% free, no registration required.
Sign up
Here's how it works:
1. Anybody can ask a question
2. Anybody can answer
3. The best answers are voted up and rise to the top
Is it better to have a fewer A records and dozens of CNAME records or vice verca?
One (or few) A records per unique IP and many CNAME records per A record:
@ 3600 IN A 123.123.123.123
a 3600 IN CNAME @
b 3600 IN CNAME @
c 3600 IN CNAME @
Bunches of A records:
@ 3600 IN A 123.123.123.123
a 3600 IN A 123.123.123.123
b 3600 IN A 123.123.123.123
c 3600 IN A 123.123.123.123
share|improve this question
up vote 2 down vote accepted
Better for what?
From a performance perspective, it's marginally (and by "marginally", I mean "technically, but not noticeably") better to use the A records, as your DNS responses will not need to include the extra data.
If the CNAME points to another domain for which your server is not authoritative, it can have a greater impact due to a resolver needing to make more requests to get to the result.. but in the example you've provided, the performance impact is completely negligible.
From a manageability perspective, the CNAME may be easier, as you'd only need to make one change instead of several to account for an IP change to the system.
If the deployment is as simple as the example that you've provided, then it honestly doesn't matter either way.
share|improve this answer
Is it better to have a fewer A records and dozens of CNAME records or vice verca?
No. Less glibly, there really isn't much reason to prefer one to the other, provided that you don't point CNAME to CNAME along the way.
The main advantage that the CNAME choice would mean is that you don't have to add an MX record, or other ephemera, to each subdomain. The main drawback is that you can't vary those without converting back to an A record.
share|improve this answer
Re: CNAME vs A - it really doesn't matter for performance, per other answers.
However, if you do use a CNAME, don't make it a pointer to @, make it a pointer to some other sub-domain in the zone.
The reason is that @ also contains other records, e.g. your SOA, NS, MX records etc.
If your CNAME points to @, then all those other records will (incorrectly) start to exist for your aliased subdomains too.
BTW, if your web host becomes multihomed (i.e. it has multiple A records, or even an A and AAAA) then a CNAME to the real host machine is only a single record to maintain. If you had used A records you'd need to duplicate the list over and over for each subdomain.
share|improve this answer
Thanks for your input, as I do currently have sites with multiple CNAME records pointing to @. – Stuart Powers Feb 4 '12 at 1:47
Your Answer
discard
By posting your answer, you agree to the privacy policy and terms of service.
Not the answer you're looking for? Browse other questions tagged or ask your own question. | __label__pos | 0.893942 |
Forum Academy Marketplace Showcase Pricing Features
Copy transitions
Would it be possible to enable “copy transitions”, just like formatting and conditionals?
Now it’s possible to copy formatting and conditionals but not transitions. Or is the design thought behind this that you should use styles if you need to apply it to that many elements and go that way instead?
3 Likes | __label__pos | 1 |
What exactly is the base url/valid domain in the manifest.json?
Sara 0 Reputation points
2023-05-19T13:27:17.54+00:00
Hello,
I am using the Teams Toolkit to develop a bot with message extension and tab functionality.
I followed the example of this sample code. I opened a free ngrok instance (https://xxxx-xx-xx-xx-xxx.ngrok-free.app) and added that ngrok instance at all the BaseUrl and ValidDomain fields as instructed.
The code works locally, I created a zip of the manifest and icons and uploaded into the Teams app to test.
However, I want to eventually publish the app in the Teams store, and I am not sure what should I put instead of the ngrok link as the BaseUrl or Valid Domain?
Microsoft Teams Development
Microsoft Teams Development
Microsoft Teams: A Microsoft customizable chat-based workspace.Development: The process of researching, productizing, and refining new or existing technologies.
3,047 questions
{count} votes
1 answer
Sort by: Most helpful
1. Sayali-MSFT 2,266 Reputation points Microsoft Vendor
2023-05-22T11:23:49.1133333+00:00
To Publish the App in store. First you need to create the app service in Azure portal.
After successfully creating the app service you will get the Url-
http://<app-name>.azurewebsites.net.
you need to replace the above URL with the ngrok & valid domain section.
To Create the app service please follow the below documentation-
https://learn.microsoft.com/en-us/azure/app-service/quickstart-dotnetcore?pivots=development-environment-azure-portal&tabs=net70 | __label__pos | 0.671064 |
Logo of AppSignal
Menu
How to use custom metrics
Robert Beekman on
Deeper insights with custom metrics
With the AppSignal gem you could already use custom instrumentation to get more details about your application performance. But sometimes you want to track other metrics as well.
With the 1.0 release of our gem, you can send custom metrics to AppSignal. These metrics enable you to track anything in your application, from new accounts to database disk usage. These are not replacements for code instrumentation, but an additional way to make certain data in your code more accessible and measureable over time.
We offer three types of metrics:
Gauge A number you can overwrite useful to store things like user count.
Counter A number that can be incremented by the given value, useful to count the times a process runs for example.
Distribution A collection of numbers for wich we store the average and the count. Useful to track average sale amount.
The AppSignal gem has a methods for each of these metrics types. You can use these methods to send data to our systems.
Gauge
The gauge is ideal for metrics that can both increase and decrease. We use the gauge in AppSignal to graph the number of active accounts.
1
2
count = Account.active.count
Appsignal.set_gauge('account_count', count)
Counter
As the name suggests, counters are a great way to keep track of how many times something happens. Our workers process a payload that contains multiple data points. This means the count of the job doesn’t accurately represent the amount of data we process. With the counter we increment for each data point we process.
1
2
3
minute.metrics.each do |metric|
Appsignal.increment_counter('metric_count', metric.length)
end
Distribution
We use distributions to measure the average time a piece of code takes to execute. For example a job can run multiple map/reduce jobs and even though we track the duration with instrumentation, we still want to see the average duration for each job in a nice graph.
1
Appsignal.add_distribution_value('mapreduce_duration', MapReduce::Minutely.new.run.time)
Turning metrics into graphs
Sending metrics to AppSignal is only half of the story, after sending data we need to create graphs to show the metrics. We do this in the editor on the “custom metrics” page.
Custom metrics editor
Our custom metrics feature allows you to create multiple screens with graphs. You can define the screens and the graphs on these screens through a YAML format.
For example to create a screen with account releaed graphs, showing a graph with the number of accounts you can use the following YAML:
1
2
3
4
5
6
7
8
9
-
title: Account overview
graphs:
-
title: 'Number of accounts'
kind: gauge
format: number
fields:
- account_count
This wil result in the following page:
Custom metrics editor
Instead of a list with fields you can also provide a regex that matches one or more metric names. The example below renders a graph with lines for each API response code for a 3rd party API.
1
2
3
4
5
6
7
8
-
title: API Responses
graphs:
-
title: 'API response codes'
kind: count
filter: 'api_response_code_[0-9]+'
format: number
These are just a few of many useful metrics you can now track with AppSignal. For more information about custom metrics, check our documentation or contact us if you need any help setting this up for your account.
10 latest articles
Go back
Subscribe to
Ruby Magic
Magicians never share their secrets. But we do. Sign up for our Ruby Magic email series and receive deep insights about garbage collection, memory allocation, concurrency and much more.
We'd like to set cookies, read why. | __label__pos | 0.60901 |
What is 317 Hectares in Square Kilometers?
Unit Converter
Convert 317 Hectares to Square Kilometers
To calculate 317 Hectares to the corresponding value in Square Kilometers, multiply the quantity in Hectares by 0.01 (conversion factor). In this case we should multiply 317 Hectares by 0.01 to get the equivalent result in Square Kilometers:
317 Hectares x 0.01 = 3.17 Square Kilometers
317 Hectares is equivalent to 3.17 Square Kilometers.
How to convert from Hectares to Square Kilometers
The conversion factor from Hectares to Square Kilometers is 0.01. To find out how many Hectares in Square Kilometers, multiply by the conversion factor or use the Area converter above. Three hundred seventeen Hectares is equivalent to three point one seven Square Kilometers.
Definition of Hectare
The hectare (symbol: ha) is an SI accepted metric system unit of area equal to 100 ares (10,000 m2) and primarily used in the measurement of land as a metric replacement for the imperial acre. An acre is about 0.405 hectare and one hectare contains about 2.47 acres. In 1795, when the metric system was introduced, the "are" was defined as 100 square metres and the hectare ("hecto-" + "are") was thus 100 "ares" or 1⁄100 km2. When the metric system was further rationalised in 1960, resulting in the International System of Units (SI), the are was not included as a recognised unit. The hectare, however, remains as a non-SI unit accepted for use with the SI units, mentioned in Section 4.1 of the SI Brochure as a unit whose use is "expected to continue indefinitely".
Definition of Square Kilometer
Square kilometre (International spelling as used by the International Bureau of Weights and Measures) or square kilometer (American spelling), symbol km2, is a multiple of the square metre, the SI unit of area or surface area. 1 km2 is equal to 1,000,000 square metres (m2) or 100 hectares (ha). It is also approximately equal to 0.3861 square miles or 247.1 acres.
Using the Hectares to Square Kilometers converter you can get answers to questions like the following:
• How many Square Kilometers are in 317 Hectares?
• 317 Hectares is equal to how many Square Kilometers?
• How to convert 317 Hectares to Square Kilometers?
• How many is 317 Hectares in Square Kilometers?
• What is 317 Hectares in Square Kilometers?
• How much is 317 Hectares in Square Kilometers?
• How many km2 are in 317 ha?
• 317 ha is equal to how many km2?
• How to convert 317 ha to km2?
• How many is 317 ha in km2?
• What is 317 ha in km2?
• How much is 317 ha in km2? | __label__pos | 0.984136 |
NAG Library Function Document
nag_kelvin_ker_vector (s19aqc)
Contents
1 Purpose
7 Accuracy
1
Purpose
nag_kelvin_ker_vector (s19aqc) returns an array of values for the Kelvin function kerx.
2
Specification
#include <nag.h>
#include <nags.h>
void nag_kelvin_ker_vector (Integer n, const double x[], double f[], Integer ivalid[], NagError *fail)
3
Description
nag_kelvin_ker_vector (s19aqc) evaluates an approximation to the Kelvin function kerxi for an array of arguments xi, for i=1,2,,n.
Note: for x<0 the function is undefined and at x=0 it is infinite so we need only consider x>0.
The function is based on several Chebyshev expansions:
For 0<x1,
kerx=-ftlogx+π16x2gt+yt
where ft, gt and yt are expansions in the variable t=2x4-1.
For 1<x3,
kerx=exp-1116x qt
where qt is an expansion in the variable t=x-2.
For x>3,
kerx=π 2x e-x/2 1+1xct cosβ-1xdtsinβ
where β= x2+ π8 , and ct and dt are expansions in the variable t= 6x-1.
When x is sufficiently close to zero, the result is computed as
kerx=-γ-logx2+π-38x2 x216
and when x is even closer to zero, simply as kerx=-γ-log x2 .
For large x, kerx is asymptotically given by π 2x e-x/2 and this becomes so small that it cannot be computed without underflow and the function fails.
4
References
Abramowitz M and Stegun I A (1972) Handbook of Mathematical Functions (3rd Edition) Dover Publications
5
Arguments
1: n IntegerInput
On entry: n, the number of points.
Constraint: n0.
2: x[n] const doubleInput
On entry: the argument xi of the function, for i=1,2,,n.
Constraint: x[i-1]>0.0, for i=1,2,,n.
3: f[n] doubleOutput
On exit: kerxi, the function values.
4: ivalid[n] IntegerOutput
On exit: ivalid[i-1] contains the error code for xi, for i=1,2,,n.
ivalid[i-1]=0
No error.
ivalid[i-1]=1
xi is too large, the result underflows. f[i-1] contains zero. The threshold value is the same as for fail.code= NE_REAL_ARG_GT in nag_kelvin_ker (s19acc), as defined in the Users' Note for your implementation.
ivalid[i-1]=2
xi0.0, the function is undefined. f[i-1] contains 0.0.
5: fail NagError *Input/Output
The NAG error argument (see Section 3.7 in How to Use the NAG Library and its Documentation).
6
Error Indicators and Warnings
NE_ALLOC_FAIL
Dynamic memory allocation failed.
See Section 2.3.1.2 in How to Use the NAG Library and its Documentation for further information.
NE_BAD_PARAM
On entry, argument value had an illegal value.
NE_INT
On entry, n=value.
Constraint: n0.
NE_INTERNAL_ERROR
An internal error has occurred in this function. Check the function call and any array sizes. If the call is correct then please contact NAG for assistance.
See Section 2.7.6 in How to Use the NAG Library and its Documentation for further information.
NE_NO_LICENCE
Your licence key may have expired or may not have been installed correctly.
See Section 2.7.5 in How to Use the NAG Library and its Documentation for further information.
NW_IVALID
On entry, at least one value of x was invalid.
Check ivalid for more information.
7
Accuracy
Let E be the absolute error in the result, ε be the relative error in the result and δ be the relative error in the argument. If δ is somewhat larger than the machine precision, then we have:
E x2 ker1x+ kei1x δ,
ε x2 ker1x + kei1x kerx δ.
For very small x, the relative error amplification factor is approximately given by 1logx , which implies a strong attenuation of relative error. However, ε in general cannot be less than the machine precision.
For small x, errors are damped by the function and hence are limited by the machine precision.
For medium and large x, the error behaviour, like the function itself, is oscillatory, and hence only the absolute accuracy for the function can be maintained. For this range of x, the amplitude of the absolute error decays like πx2e-x/2 which implies a strong attenuation of error. Eventually, kerx, which asymptotically behaves like π2x e-x/2, becomes so small that it cannot be calculated without causing underflow, and the function returns zero. Note that for large x the errors are dominated by those of the standard function exp.
8
Parallelism and Performance
nag_kelvin_ker_vector (s19aqc) is not threaded in any implementation.
9
Further Comments
Underflow may occur for a few values of x close to the zeros of kerx, below the limit which causes a failure with fail.code= NW_IVALID.
10
Example
This example reads values of x from a file, evaluates the function at each value of xi and prints the results.
10.1
Program Text
Program Text (s19aqce.c)
10.2
Program Data
Program Data (s19aqce.d)
10.3
Program Results
Program Results (s19aqce.r)
© The Numerical Algorithms Group Ltd, Oxford, UK. 2017 | __label__pos | 0.755718 |
Coordinate distributed systems.
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
143 lines
4.7KB
1. # -*- coding: utf-8 -*-
2. #
3. # Copyright (C) 2016 Red Hat, Inc.
4. #
5. # Licensed under the Apache License, Version 2.0 (the "License"); you may
6. # not use this file except in compliance with the License. You may obtain
7. # a copy of the License at
8. #
9. # http://www.apache.org/licenses/LICENSE-2.0
10. #
11. # Unless required by applicable law or agreed to in writing, software
12. # distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
13. # WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
14. # License for the specific language governing permissions and limitations
15. # under the License.
16. import bisect
17. import hashlib
18. import six
19. import tooz
20. from tooz import utils
21. class UnknownNode(tooz.ToozError):
22. """Node is unknown."""
23. def __init__(self, node):
24. super(UnknownNode, self).__init__("Unknown node `%s'" % node)
25. self.node = node
26. class HashRing(object):
27. """Map objects onto nodes based on their consistent hash."""
28. DEFAULT_PARTITION_NUMBER = 2**5
29. def __init__(self, nodes, partitions=DEFAULT_PARTITION_NUMBER):
30. """Create a new hashring.
31. :param nodes: List of nodes where objects will be mapped onto.
32. :param partitions: Number of partitions to spread objects onto.
33. """
34. self.nodes = {}
35. self._ring = dict()
36. self._partitions = []
37. self._partition_number = partitions
38. self.add_nodes(set(nodes))
39. def add_node(self, node, weight=1):
40. """Add a node to the hashring.
41. :param node: Node to add.
42. :param weight: How many resource instances this node should manage
43. compared to the other nodes (default 1). Higher weights will be
44. assigned more resources. Three nodes A, B and C with weights 1, 2 and 3
45. will each handle 1/6, 1/3 and 1/2 of the resources, respectively.
46. """
47. return self.add_nodes((node,), weight)
48. def add_nodes(self, nodes, weight=1):
49. """Add nodes to the hashring with equal weight
50. :param nodes: Nodes to add.
51. :param weight: How many resource instances this node should manage
52. compared to the other nodes (default 1). Higher weights will be
53. assigned more resources. Three nodes A, B and C with weights 1, 2 and 3
54. will each handle 1/6, 1/3 and 1/2 of the resources, respectively.
55. """
56. for node in nodes:
57. key = utils.to_binary(node, 'utf-8')
58. key_hash = hashlib.md5(key)
59. for r in six.moves.range(self._partition_number * weight):
60. key_hash.update(key)
61. self._ring[self._hash2int(key_hash)] = node
62. self.nodes[node] = weight
63. self._partitions = sorted(self._ring.keys())
64. def remove_node(self, node):
65. """Remove a node from the hashring.
66. Raises py:exc:`UnknownNode`
67. :param node: Node to remove.
68. """
69. try:
70. weight = self.nodes.pop(node)
71. except KeyError:
72. raise UnknownNode(node)
73. key = utils.to_binary(node, 'utf-8')
74. key_hash = hashlib.md5(key)
75. for r in six.moves.range(self._partition_number * weight):
76. key_hash.update(key)
77. del self._ring[self._hash2int(key_hash)]
78. self._partitions = sorted(self._ring.keys())
79. @staticmethod
80. def _hash2int(key):
81. return int(key.hexdigest(), 16)
82. def _get_partition(self, data):
83. hashed_key = self._hash2int(hashlib.md5(data))
84. position = bisect.bisect(self._partitions, hashed_key)
85. return position if position < len(self._partitions) else 0
86. def _get_node(self, partition):
87. return self._ring[self._partitions[partition]]
88. def get_nodes(self, data, ignore_nodes=None, replicas=1):
89. """Get the set of nodes which the supplied data map onto.
90. :param data: A byte identifier to be mapped across the ring.
91. :param ignore_nodes: Set of nodes to ignore.
92. :param replicas: Number of replicas to use.
93. :return: A set of nodes whose length depends on the number of replicas.
94. """
95. partition = self._get_partition(data)
96. ignore_nodes = set(ignore_nodes) if ignore_nodes else set()
97. candidates = set(self.nodes.keys()) - ignore_nodes
98. replicas = min(replicas, len(candidates))
99. nodes = set()
100. while len(nodes) < replicas:
101. node = self._get_node(partition)
102. if node not in ignore_nodes:
103. nodes.add(node)
104. partition = (partition + 1
105. if partition + 1 < len(self._partitions) else 0)
106. return nodes
107. def __getitem__(self, key):
108. return self.get_nodes(key)
109. def __len__(self):
110. return len(self._partitions) | __label__pos | 0.995429 |
Ejemplo n.º 1
0
def in_env(repo_cmd_runner, language_version):
envdir = os.path.join(
repo_cmd_runner.prefix_dir,
helpers.environment_dir(ENVIRONMENT_DIR, language_version),
)
with envcontext(get_env_patch(envdir)):
yield
Ejemplo n.º 2
0
def test_exception_safety():
class MyError(RuntimeError):
pass
env = {}
with pytest.raises(MyError):
with envcontext([('foo', 'bar')], _env=env):
raise MyError()
assert env == {}
Ejemplo n.º 3
0
def _test(**kwargs):
before = kwargs.pop('before')
patch = kwargs.pop('patch')
expected = kwargs.pop('expected')
assert not kwargs
env = before.copy()
with envcontext(patch, _env=env):
assert env == expected
assert env == before
Ejemplo n.º 4
0
def in_env(repo_cmd_runner, language_version): # pragma: windows no cover
envdir = repo_cmd_runner.path(
helpers.environment_dir(ENVIRONMENT_DIR, language_version),
)
with envcontext(get_env_patch(envdir)):
yield
Ejemplo n.º 5
0
def in_env(prefix): # pragma: windows no cover
envdir = prefix.path(
helpers.environment_dir(ENVIRONMENT_DIR, C.DEFAULT),
)
with envcontext(get_env_patch(envdir)):
yield
Ejemplo n.º 6
0
def bin_on_path():
bindir = os.path.join(os.getcwd(), 'bin')
with envcontext((('PATH', (bindir, os.pathsep, Var('PATH'))),)):
yield
Ejemplo n.º 7
0
def in_env(repo_cmd_runner):
envdir = repo_cmd_runner.path(
helpers.environment_dir(ENVIRONMENT_DIR, 'default'),
)
with envcontext(get_env_patch(envdir)):
yield
Ejemplo n.º 8
0
def in_env(repo_cmd_runner): # pragma: windows no cover
envdir = repo_cmd_runner.path(helpers.environment_dir(ENVIRONMENT_DIR, "default"))
with envcontext(get_env_patch(envdir)):
yield
Ejemplo n.º 9
0
def in_env(prefix):
target_dir = prefix.path(
helpers.environment_dir(ENVIRONMENT_DIR, C.DEFAULT),
)
with envcontext(get_env_patch(target_dir)):
yield
Ejemplo n.º 10
0
def in_env(prefix, language_version): # pragma: windows no cover
envdir = prefix.path(
helpers.environment_dir(ENVIRONMENT_DIR, language_version),
)
with envcontext(get_env_patch(envdir, language_version)):
yield
Ejemplo n.º 11
0
def test_integration_os_environ():
with mock.patch.dict(os.environ, {'FOO': 'bar'}, clear=True):
assert os.environ == {'FOO': 'bar'}
with envcontext([('HERP', 'derp')]):
assert os.environ == {'FOO': 'bar', 'HERP': 'derp'}
assert os.environ == {'FOO': 'bar'}
Ejemplo n.º 12
0
def in_env(prefix, language_version):
envdir = prefix.path(helpers.environment_dir(_dir, language_version))
with envcontext(get_env_patch(envdir)):
yield
Ejemplo n.º 13
0
def in_env(prefix, language_version): # pragma: windows no cover
with envcontext(get_env_patch(_envdir(prefix, language_version))):
yield | __label__pos | 0.865331 |
Skip to content
HTTPS clone URL
Subversion checkout URL
You can clone with HTTPS or Subversion.
Download ZIP
Entity Framework Hooking tools
C#
branch: master
README.markdown
EFHooks
This repo is no longer maintained since I've left the Microsoft/C# environment. Use visoft's fork instead: https://github.com/visoft/EFHooks.
EFHooks is a framework to assist in hooking into the Entity Framework Code First before and after insert, update and delete actions are performed on the database.
EFHooks is designed to lend itself to code that is easy to unit test with the least amount of mocking possible and without cluttering up your DbContext class with hooking code. It also is designed to play well with IoC containers.
Getting Started:
Define a hook to fire before an action by deriving from one of the strongly typed hook classes: PreInsertHook<TEntity>, PreUpdateHook<TEntity> or PreDeleteHook<TEntity> and override the Hook method. (There are also Post-Action hooks)
The example below will automatically set the CreatedAt property to DateTime.Now
public class TimestampPreInsertHook : PreInsertHook<ITimeStamped>
{
public override void Hook(ITimeStamped entity, HookEntityMetadata metadata)
{
entity.CreatedAt = DateTime.Now;
}
}
Then derive your DbContext from the EFHooks.HookedDbContext and register the hooks.
public class AppContext : HookedDbContext
{
public AppContext() : base()
{
this.RegisterHook(new TimestampPreInsertHook());
}
public DbSet<User> Users { get; set; }
public DbSet<Post> Posts { get; set; }
}
New up the AppContext and your hooks are in place and will fire when you call SaveChanges();
Something went wrong with that request. Please try again. | __label__pos | 0.514144 |
Blob Blame History Raw
#!/bin/sh
# This script waits for mysqld to be ready to accept connections
# (which can be many seconds or even minutes after launch, if there's
# a lot of crash-recovery work to do).
# Running this as ExecStartPost is useful so that services declared as
# "After mysqld" won't be started until the database is really ready.
# Service file passes us the daemon's PID (actually, mysqld_safe's PID)
daemon_pid="$1"
# extract value of a MySQL option from config files
# Usage: get_mysql_option SECTION VARNAME DEFAULT
# result is returned in $result
# We use my_print_defaults which prints all options from multiple files,
# with the more specific ones later; hence take the last match.
get_mysql_option(){
result=`/usr/bin/my_print_defaults "$1" | sed -n "s/^--$2=//p" | tail -n 1`
if [ -z "$result" ]; then
# not found, use default
result="$3"
fi
}
# Defaults here had better match what mysqld_safe will default to
get_mysql_option mysqld datadir "/var/lib/mysql"
datadir="$result"
get_mysql_option mysqld socket "/var/lib/mysql/mysql.sock"
socketfile="$result"
# Wait for the server to come up or for the mysqld process to disappear
ret=0
while /bin/true; do
RESPONSE=`/usr/bin/mysqladmin --no-defaults --socket="$socketfile" --user=UNKNOWN_MYSQL_USER ping 2>&1`
mret=$?
if [ $mret -eq 0 ]; then
break
fi
# exit codes 1, 11 (EXIT_CANNOT_CONNECT_TO_SERVICE) are expected,
# anything else suggests a configuration error
if [ $mret -ne 1 -a $mret -ne 11 ]; then
ret=1
break
fi
# "Access denied" also means the server is alive
echo "$RESPONSE" | grep -q "Access denied for user" && break
# Check process still exists
if ! /bin/kill -0 $daemon_pid 2>/dev/null; then
ret=1
break
fi
sleep 1
done
exit $ret | __label__pos | 0.582934 |
I have asp core Project and Modules project into them
and when i started i cath them - error message
Structure of my solution there:
how to make it work?
• As you are new here, please allow me one hint: It is very kind of you to say Thank you to some answers, but it would be even kinder to accept the best answer (this is up to you of course!). Voting (once you crossed the 15 rep points yourself) and accepting are the way to say Thx on SO. Please read this: someone-answers – user3378165 Feb 27 '17 at 7:20
You can't have two controllers with the same name, change one of them to another name.
You can't have two Actions methods in one controller with the same name, so you need to change the name of one of them . However you can do this if they have different HTTP verbs such as "GET" and "POST"; and in doing so, because they are C# methods, they need to be slightly different. For instance, they could have different parameters. For example
[HttpGet]
public IActionResult Subscribe()
{
return View();
}
[HttpPost, ValidateAntiForgeryToken]
public IActionResult Subscribe(Subscriber _subscriber)
{
ViewData["Title"] = "Subscribe";
_subscriber.Created = DateTime.Now;
_subscriber.name= "John Doe";
_subscriber.email= "[email protected]";
_dataContext.Add(_subscriber);
_dataContext.SaveChanges();
return RedirectToAction("Index", "Home");
}
That should solve the problem.
Your Answer
By clicking "Post Your Answer", you acknowledge that you have read our updated terms of service, privacy policy and cookie policy, and that your continued use of the website is subject to these policies.
Not the answer you're looking for? Browse other questions tagged or ask your own question. | __label__pos | 0.606625 |
Build a FullStack AMA app with Remix, Prisma, PostgreSQL
Setting the scene
Remix is a relatively new, full-stack JS framework, backed by some of the giants in the JS community such as Kent C. Dodds, Ryan T. Florence and Michael Jackson. Up until Next.js came along, piecing together various tools to build your SPA was the de-facto way to build JS apps. Next.js revolutionized that to some extent and went unrivaled for a while. However, the landscape is shifting fast in the last year or so with healthy competition from RedwoodJs, BlitzJs and now Remix. All of these tools are trying to solve some of the age-old problems in web development in a more creative, reliable and most importantly, developer friendly way so that building a performant web app becomes the default for JS developers.
It is definitely very early to identify a clear winner among all these tools in this space but Remix certainly looks like a worthy contender. So, if you haven’t already wet your feet in the awesomeness that is Remix, I hope this tutorial will help you get started and convince you to choose it for what you build next!
Birds eye view
In this post, I will walk you through building an AMA (Ask Me Anything) app using Remix. Below is a list of the primary tools we will be using to build this app. It will certainly be easier for the reader to follow along if they are familiar with the basics of some of the tools (except for Remix, of course) but don’t worry too much if not.
• Remix - Primary framework
• React - UI framework
• Prisma - Database ORM
• PostgreSQL - Database
• TailwindCSS - CSS framework
This is going to be a long post so I recommend following along in multiple sittings and to make it easier for you to decide if reading the whole thing is a worthwhile investment or not, here’s a outline of what we will do/learn about throughout the whole thing, in chronological order:
• App Spec - Outline the features of the app we are going to build from a higher level.
• Get started with Remix - Mostly following their official docs and installing a few things.
• Database Schema - Setup the database schema that can support all the dynamic content needed by our app.
• CRUD - Basic CRUD operations in standard Remix way.
• UI/UX - Sprinkle a little bit of Tailwind to make things look nice and pretty.
As you can tell, we have a lot to cover, so, let’s dive right in. Oh, before that though, if you’re impatient like me and just want to see the code, here’s the whole app in on github: https://github.com/foysalit/remix-ama
App Spec
In any project, if you know exactly what you’re going to build, it becomes a lot easier to navigate the landscape from the get go. You may not always have that liberty though but luckily, in our case, we know all the features we need for our app. Before we methodically list out all the features from a technical perspective, let’s look at them from a general product point of view.
AMA Session
A user on our app should be able to host multiple AMA sessions. However, it doesn’t make sense to host multiple sessions within the same day so let’s restrict a session’s duration to a full day and allow only 1 session per user per day.
Q&A
A user on our app should be able to ask a question to a host during a running AMA session. To build exclusivity, let’s block users from asking questions after the session ends. Of course, the host of the session should be able to answer the questions asked in their sessions.
Comments
To build more engagement and make things a bit more fun than traditional Q&A, let’s add a comment thread feature that lets any user add a comment to a question. This can be used to add more context to an already asked question or have a discussion about the provided answer by the host etc.
Now let’s break down how we will implement them:
Authentication - Users need to be able to register in order to host an AMA session, ask a question to a host or comment in a thread. However, let’s not prevent an unauthenticated user from viewing an already running session. For authentication, let’s use email address and password. Additionally, when signing up, let’s also ask the user to input their full name to be used everywhere in the app. A User entity will be used for storing auth related data.
Sessions - Show a list of all current and past sessions in an index page to all (authenticated/unauthenticated) users that will allow them to click into each session and see questions/answers/comments etc. Authenticated users can start a new session if there already isn’t one for that day. Let’s ask the host to provide some context/details to each session when starting one. Each session is an entity that belongs to a user.
Questions - Every individual session can have multiple questions from any registered user except for the host. The question entity will also contain the answer from the host in the database and every answer input will be validated to ensure the author is the host of the session. The entity belongs to a session and a user. Let’s ensure that a user can only ask one question per session so until they ask a question, let’s show a text input to every user. Under every answered question, let’s show a text input to the host to add their answer.
Comments - Every question (answered or not) can have multiple comments. To reduce complexity, let’s not add threading in comments for now. Every user can post multiple comments under a question so let’s always show the comment text input to all users under every question. To simplify the UI, let’s show the question (and answer) list on the session page by default and add a link to open the comment thread in a sidebar.
Get started with Remix
Remix has many great qualities but documentation probably takes the top spot. A framework under heavy development is bound to have many many moving pieces that are constantly being evolved by the maintainers so documentation is bound to fall behind as features get prioritized. However, Remix team takes great care to keep documentation up to date and in sync with the constant stream of amazing changes being pushed out. So, to get started, of course, the official docs will be our first point of entry.
If you’re too lazy to go to another website and read another wall of text, worry not. Here’s all you need to do in order to install Remix:
• Make sure you have Node.js development env setup.
• Open your Terminal window and run the following command npx create-remix@latest.
• Done.
Remix doesn’t just give you a bunch of tools and ask you to go build your thing, they lead by example which is why they have the concept of Stacks. Stacks are essentially templates/starter kits that gives you the groundwork for a complete project right out of the box. For our project, we will use the Blues Stack which gives us a fully configured Remix project with Prisma, Tailwind and an entire module that shows how to use those tools to build a CRUD feature. I mean honestly, I feel like I shouldn’t even be writing this post since the template did all the work already. Oh well… I’m in too deep now so might as well finish it.
All you need to do is run the command npx create-remix --template remix-run/blues-stack ama in your terminal and Remix will drop the entire project in a new folder named ama after you answer a couple of questions.
Create remix project
Now let’s open up the ama folder and familiarize ourselves a bit with the content inside. There’s a bunch of config files in the root and we won’t get into most of those. We are mostly interested in the prisma, public and app directories. The prisma directory will contain our database schema and migration. The public directory will contain any asset the app needs such as icons, images etc. Finally, the app directory will house all our code, both client and server. Yes, you read that right, both client and server. If this is giving you major legacy codebase flashbacks, please know that you’re not alone.
Before we dive into writing our own app’s code, let’s check everything into git so that we can trace our changes from what was already done for us by remix blues stack.
cd ama
git init
git add .
git commit -am ":tada: Remix blues stack app"
And finally, let’s run the app and check out how it looks before we touch anything. The README.md file already contains all the detailed steps that should help you with this and since these are subjected to frequent change, I am going to link out to the steps instead of writing them down here https://github.com/remix-run/blues-stack#development
If you follow the steps exactly, the app should be accessible at http://localhost:3000
The stack comes with a default note module that you can play around with after registering with your email and password.
First look out of the box
Database Schema
Usually, I like to start thinking of a feature/entity from its database schema and work my way up to the UI where the data gets interpreted, displayed and manipulated in various ways. Once you have the schema worked out, it becomes much easier to move through that implementation quickly.
As discussed above in the app spec, we need 3 entities in our database: Session, Question and Comment. We also need a User entity to store each registered user but the blues stack from Remix already includes it. We just need to slightly modify it to add a name column. Let’s open the file prisma/schema.prisma and add the below lines at the end of the file:
model Session {
id String @id @default(cuid())
content String
createdAt DateTime @default(now())
updatedAt DateTime @updatedAt
user User @relation(fields: [userId], references: [id], onDelete: Cascade, onUpdate: Cascade)
userId String
questions Question[]
}
model Question {
id String @id @default(cuid())
createdAt DateTime @default(now())
updatedAt DateTime @updatedAt
content String
answer String?
user User @relation(fields: [userId], references: [id], onDelete: Cascade, onUpdate: Cascade)
userId String
session Session @relation(fields: [sessionId], references: [id], onDelete: Cascade, onUpdate: Cascade)
sessionId String
comments Comment[]
}
model Comment {
id String @id @default(cuid())
content String
createdAt DateTime @default(now())
updatedAt DateTime @updatedAt
user User @relation(fields: [userId], references: [id], onDelete: Cascade, onUpdate: Cascade)
userId String
question Question @relation(fields: [questionId], references: [id], onDelete: Cascade, onUpdate: Cascade)
questionId String
}
And then add this line in the definition of the User model:
model User {
…
name String
sessions Session[]
questions Question[]
comments Comment[]
…
}
Now there’s a lot to unpack here but most of it is outside of the scope of this post. This schema definition is all we need for prisma to take care of building all the tables with the right columns for the 3 new entities we need. How the definitions and the syntax work you should head over to this link https://www.prisma.io/docs/concepts/components/prisma-schema and read up a bit. A high level summary is:
• An entity/table definition starts with model <EntityName> {} and inside the curly braces goes all the columns/properties of the entity and relationships with the other entities. So, a table for comment would look like model Comment {}
• Column definitions usually look like <columnName> <columnType> <default/relationship/other specifiers>. So, if our comment entity requires a column to store the content of the comment input by the user it would look like
model Comment {
content String
}
• Relationships between 2 tables/entities are usually defined via a foreign key column so these are also defined alongside other columns. The definition usually requires 2 lines. A column to contain the foreign key id and the other to specify the name used to access related entity which usually looks like: <entity> <entityName> @relation(fields: [<foreignKeyColumnName>], references: [id], onDelete: Cascade, onUpdate: Cascade). So, to relate the comment entity to the question entity with a one-to-many relationship we need to define it like
model Comment {
content String
question Question @relation(fields: [questionId], references: [id], onDelete: Cascade, onUpdate: Cascade)
questionId String
}
The above doesn’t even cover the tip of the iceberg that is prisma so please please please, do read up on it from their official docs and you will see its true power. For the sake of this blog post, the above should give you an idea of why we need the prisma schema above.
We need to make one last adjustment related to the database. Along with the entire authentication system, the blues stack also includes an initial data seeder that populates your database with a dummy user for testing purposes. Since we introduced a new column name in the user table, we also need to adjust the seeder to add a dummy name to the user. Open the file prisma/seed.js and modify the user insert code as below:
const user = await prisma.user.create({
data: {
Email,
// add the line below
name: 'Rachel Remix',
password: {
create: {
hash: hashedPassword,
},
},
},
});
With that, we are finally ready to sync all these changes with our database. However, since our database has already been spun up with previously created schema and some seeded data and since then, our db has changed we can’t really sync all our changes right away. Instead, we will have to adjust the migration a bit. Prisma provides commands for this kind of adjustments but luckily our existing data and schema is not in production or anything so at this point, it’s just easier to nuke the db and start fresh with our current schema. So let’s go with the easier route and run these commands:
./node_modules/.bin/prisma migrate reset
./node_modules/.bin/prisma migrate dev
The first command resets our db and the second one uses the current schema definition to recreate the db with all the tables and populates it with seeded data.
Now, let’s stop the running app server, re-setup the app and spin it back up
npm run setup
npm run dev
Update User Registration
Since we have added a new name column to the user table, let’s start by requiring users to fill in their name when signing up. This will give us a nice entry to the remix way of doing things without making it a big shock if you’re mostly familiar with react’s usual way of building apps.
The code for user sign up can be found in ./app/routes/join.tsx file. Open it up and right under the <Form> component the following code to add the input field for name:
<Form method="post" className="space-y-6" noValidate>
<div>
<label
htmlFor="name"
className="block text-sm font-medium text-gray-700"
>
Full Name
</label>
<div className="mt-1">
<input
ref={nameRef}
id="name"
required
autoFocus={true}
name="name"
type="text"
aria-invalid={actionData?.errors?.name ? true : undefined}
aria-describedby="name-error"
className="w-full rounded border border-gray-500 px-2 py-1 text-lg"
/>
{actionData?.errors?.name && (
<div className="pt-1 text-red-700" id="name-error">
{actionData.errors.name}
</div>
)}
</div>
</div>
It basically mimics the already existing email field. Now, we need to adjust a few more things in here to make sure the name input is handled correctly. First, let’s create a ref to the name field and if there is an error in handling the name input, we want to auto focus that field just like the other fields in the form.
const emailRef = React.useRef<HTMLInputElement>(null);
// New line
const nameRef = React.useRef<HTMLInputElement>(null);
const passwordRef = React.useRef<HTMLInputElement>(null);
React.useEffect(() => {
if (actionData?.errors?.email) {
emailRef.current?.focus();
} else if (actionData?.errors?.password) {
passwordRef.current?.focus();
// New block
} else if (actionData?.errors?.name) {
nameRef.current?.focus();
}
}, [actionData]);
Now what is actionData? It’s simply the returned response from the server from the submit request. Any form submit action will send the post request from the browser to the server and remix will handle it via the action function defined right above the component. This function receives an object with a request property which gives you some very handy methods to access the data sent over from the browser and you can return a response from this function which the browser code can handle accordingly. In our case, we want to validate the submitted data and make sure the name field is actually filled in. So here are the changes we need in the action function:
const email = formData.get("email");
const name = formData.get("name");
const password = formData.get("password");
if (typeof name !== "string" || name.length === 0) {
return json<ActionData>(
{ errors: { name: "Name is required" } },
{ status: 400 }
);
}
Which boils down to, retrieving the name input from the form submit request and then returns an error message if the name is not filled in. Since the return data is typed via the ActionData type, we need to adjust the definition and add the name property:
interface ActionData {
errors: {
email?: string;
name?: string;
password?: string;
};
}
We have only handled the incorrect input case so let’s go ahead and make sure that in the case of correct input, the user’s name gets inserted in the column property by updating the line const user = await createUser(email, password); to const user = await createUser(email, password, name); and consequently, we need to adjust the definition of createUser in the app/models/user.server.ts file:
export async function createUser(email: User["email"], password: string, name: string) {
const hashedPassword = await bcrypt.hash(password, 10);
return prisma.user.create({
data: {
email,
name,
password: {
create: {
hash: hashedPassword,
},
},
},
});
}
A couple of things to note here:
• To keep server specific code isolated and away from the client, we can suffix files with .server.ts.
• We are using a very expressive and intuitive prisma API to easily insert a new row into the db. This usually takes the form of prisma.<entityName>.<actionName>({}) where entityName is the table name in small letters and actionName is the db operation such as create, update, findOne etc. We will see more use of these soon.
With that we just added a new name input which will be validated when the user hits Create Account.
Signup form
This is probably a good stopping point to check in our changes on git so let’s commit our code: git add . && git commit -am “:sparkles: Add name field to the sign up form”
Sessions
So far we’ve been mostly adjusting existing code here and there to gain some insight into how Remix does things. Now we get to dive into building our own module from scratch. The first thing we will build is a way for users to host an AMA session according to the initial app spec definition.
In remix, url routes are file based. I mean, it pretty much invents a whole new paradigm so simplifying it down to file based routing is probably not very accurate or fair but we will slowly get into it. To start with sessions, we want
• A list page where all current and historical sessions are listed
• A dedicated page per session where all questions, answers and comment threads are shown
• A page to start a new session for any logged in user
Let’s start with the list page. Create a new file in app/routes/sessions/index.tsx and put the following code inside of it:
import { Link, useLoaderData } from "@remix-run/react";
import { getSessions } from "~/models/session.server";
import type { LoaderFunction } from "@remix-run/node";
import { json } from "@remix-run/node";
import { Header } from "~/components/shared/header";
import { Button } from "~/components/shared/button";
type LoaderData = {
sessions: Awaited<ReturnType<typeof getSessions>>;
};
export const loader: LoaderFunction = async () => {
const sessions = await getSessions();
if (!sessions?.length) {
throw new Response("No sessions found", { status: 404 });
}
return json<LoaderData>({ sessions });
}
export function CatchBoundary() {
return (
<>
<Header />
<div className="mx-auto px-6 md:w-5/6 lg:w-4/5 xl:w-2/3">
<div className="rounded bg-red-100 p-5">
<h4 className="text-lg font-bold">No sessions found</h4>
<p className="mb-4">Why don't you start one... could be fun!</p>
<Button isLink to="new" className="bg-blue-600 text-white">
Start AMA session!
</Button>
</div>
</div>
</>
);
}
export default function SessionIndexPage() {
const data = useLoaderData<LoaderData>();
const dateFormatter = new Intl.DateTimeFormat("en-GB");
return (
<>
<Header />
<div className="mx-auto px-6 md:w-5/6 lg:w-4/5 xl:w-2/3">
<div>
{data.sessions?.map((session) => (
<div
key={`session_list_item_${session.id}`}
className="mt-4 p-4 shadow-sm"
>
<div className="flex flex-row">
<Link className="underline" to={session.id}>
{session.user.name} -{" "}
{dateFormatter.format(new Date(session.createdAt))}
</Link>
<span className="px-2">|</span>
<div className="flex flex-row">
<img
width={18}
height={18}
alt="Question count icon"
src="/icons/question.svg"
/>
<span className="ml-1">{session._count.questions}</span>
</div>
</div>
<p className="pt-2 text-sm text-gray-700">{session.content}</p>
</div>
))}
</div>
</div>
</>
);
}
If you’re familiar with react, this should look familiar to you, for the most part. However, let’s break it down piece by piece. Remix will render the default exported component. Above the component definition, we have a loader function. This is a special function that you can have only 1 per route/file and on page load, Remix will call this function to retrieve the data your page needs. It will then hydrate your component with the data and send the rendered HTML over the wire as a response which is one of the magic behaviors or Remix. This ensures that users do not have to see a loading state as your browser JS code loads data from API requests. The body of the action function calls out to a getSessions() function which is imported from ~/models/session.server. Here, we’re following the already discussed strategy of putting db operations in server only files. Let’s create the new file in app/models/session.server.ts and put the following code in it:
import { prisma } from "~/db.server";
export type { Session, Question, Comment } from "@prisma/client";
export const getSessions = () => {
return prisma.session.findMany({
include: {
user: true,
_count: {
select: { questions: true },
},
},
});
};
It’s simply fetching all entries from the session table and all the user entries related to them, since we will use the host’s info on the UI and it’s also including the total number of questions each session has. This is not super scalable because as our app grows, there might be hundreds of thousands of AMA sessions and retrieving all of them is not going to scale well. However, for the purpose of this post, we will skip pagination for now.
Let’s jump back into our sessions/index.tsx route file. If there are no sessions in the database, we return a 404 error response using the Response helper from Remix. Otherwise, we return a JSON response containing the array of sessions using the json helper from Remix.
The const data = useLoaderData<LoaderData>(); is calling a special Remix hook which gives us access to the data in the response sent back from action. You might be wondering, how are we handling the error response? It’s definitely not being handled in the body of the SessionIndexPage function. Remix uses the long available ErrorBoundary feature for handling error views. All we need to do is export a react component named CatchBoundary from a route file and any error thrown from rendering the route (client or server) the CatchBoundary component will be rendered. Let’s define this real quick above the SessionIndexPage component:
export function CatchBoundary() {
return (
<>
<Header />
<div className="mx-auto px-6 md:w-5/6 lg:w-4/5 xl:w-2/3">
<div className="rounded bg-red-100 p-5">
<h4 className="text-lg font-bold">No sessions found</h4>
<p className="mb-4">Why don't you start one... could be fun!</p>
<Button isLink to="new" className="bg-blue-600 text-white">
Start AMA session!
</Button>
</div>
</div>
</>
);
}
export default function SessionIndexPage() {
…
This is simply rendering a shared header component and a link to starting a new session. It’s also using a shared Button component. Let’s build these shared components out. We are gonna put them in the app/components/shared/ directory. Let’s start with the app/components/shared/header.tsx file:
import { Link } from "@remix-run/react";
export const HeaderText = () => {
return (
<h1 className="text-center text-3xl font-cursive tracking-tight sm:text-5xl lg:text-7xl">
<Link to="/sessions" className="block uppercase drop-shadow-md">
AMA
</Link>
</h1>
);
};
export const Header = () => {
return (
<div className="flex flex-row justify-between items-center px-6 md:w-5/6 lg:w-4/5 xl:w-2/3 mx-auto py-4">
<HeaderText />
</div>
);
};
This is a basic react component with some tailwind styling sprinkled. We are using the Link component from Remix (which is basically just a proxy to the Link component from react-router) to link to the list of sessions page. Another notable thing here is that we’re using a font-cursive style on the header text to make it look a bit like a logo. Cursive font style is not included in the default tailwind config so we will have to configure it ourselves. Open up the tailwind.config.js file from the root of the project and adjust the theme property like below:
/** @type {import('tailwindcss').Config} */
module.exports = {
content: ["./app/**/*.{ts,tsx,jsx,js}"],
theme: {
extend: {
fontFamily: {
cursive: ["Pinyon Script", "cursive"],
},
},
},
plugins: [],
};
Notice that the additional bit extends the theme to add a new fontFamily with the name cursive and the value is Pinyon Script I chose this off google fonts but feel free to pick your own font. If you’re not super familiar with tailwind, this only gives us the ability to apply this font family on a text using the font-cursive helper class but we still need to load the font itself on our webpage. Adding external assets to Remix is pretty simple. Open the app/root.tsx file and update the links definition to add 3 new objects to the array:
export const links: LinksFunction = () => {
return [
{ rel: "stylesheet", href: tailwindStylesheetUrl },
{ rel: "preconnect", href: "https://fonts.googleapis.com" },
{
rel: "preconnect",
href: "https://fonts.gstatic.com",
},
{
rel: "stylesheet",
href: "https://fonts.googleapis.com/css2?family=Pinyon+Script&display=swap",
},
];
};
All the above links are retrieved from the google fonts page here.
Tracing our steps back to the sessions/index.tsx file, the other shared component there is the button component. Let’s create that one real quick in app/components/shared/button.tsx:
import React from "react";
import { Link } from "@remix-run/react";
import type { LinkProps } from "@remix-run/react";
export type ButtonProps = {
isAction?: boolean;
isLink?: boolean;
};
export const Button: React.FC<
ButtonProps &
(ButtonProps["isLink"] extends true
? LinkProps
: React.ButtonHTMLAttributes<HTMLButtonElement>)
> = ({ children, isLink, isAction, className, ...props }) => {
let classNames = `${className || ""} px-3 py-2 rounded`;
if (isAction) {
classNames += " bg-green-300 text-gray-600 text-sm font-semi-bold";
}
if (isLink) {
return (
<Link className={classNames} {...(props as LinkProps)}>
{children}
</Link>
);
}
return (
<button className={classNames} {...props}>
{children}
</button>
);
};
This is a simple button component that will help us unify the look and feel of buttons that are either link or action buttons in various places of the app. In order to make the component type safe while accepting props for button and link, we apply some typescript magic to the props and rendering.
Finally, we look at the actual page component code itself. The page maps through all session entries and shows the date of the session, name of the host of the session, the premise/detail added by the host for the session and a total count of how many questions there are. To render dates, we are using browser’s built in Intl module which supports locale based formatting. We are using a small svg icon next to question count. You can find all the assets used in the app here https://github.com/foysalit/remix-ama/tree/main/public/icons but feel free to use your own icons as you like. All public assets need to be added to the /public folder and in order to keep all icons together, we created an icons directory.
With all of the above, you should now be able to go to http://localhost:3000/sessions url and see the 404 error page since we haven’t created any sessions yet.
Empty sessions page
Now, let’s go build the new session page so that we can host a session and see that on the list page. We will put that in another page so that users can easily go to /sessions/new on our app and start hosting a session. Create a new file routes/sessions/new.tsx with the following code:
import { Form, useActionData, useTransition } from "@remix-run/react";
import {
ActionFunction,
json,
LoaderFunction,
redirect,
} from "@remix-run/node";
import { startSessionsForUser } from "~/models/session.server";
import { requireUserId } from "~/session.server";
import { Header } from "~/components/shared/header";
import { Button } from "~/components/shared/button";
export type ActionData = {
errors?: {
content?: string;
alreadyRunning?: string;
};
};
export const action: ActionFunction = async ({ request }) => {
const userId = await requireUserId(request);
const formData = await request.formData();
try {
const content = formData.get("content");
if (typeof content !== "string" || content.length < 90) {
return json<ActionData>(
{
errors: {
content: "Content is required and must be at least 90 characters.",
},
},
{ status: 400 }
);
}
const session = await startSessionsForUser(userId, content);
return redirect(`/sessions/${session.id}`);
} catch (err: any) {
if (err?.message === "already-running-session") {
return json<ActionData>(
{
errors: { alreadyRunning: "You already have a session running." },
},
{ status: 400 }
);
}
return json({ error: err?.message });
}
};
// A simple server-side check for authentication to ensure only logged in users can access this page
export const loader: LoaderFunction = async ({ request }) => {
await requireUserId(request);
return json({ success: true });
};
export default function SessionNewPage() {
const transition = useTransition();
const actionData = useActionData();
return (
<>
<Header />
<div className="p-5 bg-gray-50 px-6 md:w-5/6 lg:w-4/5 xl:w-2/3 mx-auto rounded">
<h4 className="font-bold text-lg">
Sure you want to start a new AMA session?
</h4>
<p className="mb-4">
An AMA session lasts until the end of the day regardless of when you
start the session. During the session, any user on the platform can
ask you any question. You always have the option to not answer.
<br />
<br />
Please add a few lines to give everyone some context for the AMA
session before starting.
</p>
<Form method="post">
<textarea
rows={5}
autoFocus
name="content"
className="w-full block rounded p-2"
placeholder="Greetings! I am 'X' from 'Y' TV show and I am delighted to be hosting today's AMA session..."
/>
{actionData?.errors?.content && (
<p className="text-red-500 text-sm">{actionData.errors.content}</p>
)}
<Button
className="px-3 py-2 rounded mt-3"
disabled={transition.state === "submitting"}
type="submit"
isAction
>
{transition.state === "submitting"
? "Starting..."
: "Start Session"}
</Button>
</Form>
</div>
{actionData?.errors?.alreadyRunning && (
<div className="mt-4 p-5 bg-red-500 mx-auto min-w-[24rem] max-w-3xl rounded">
<p>{actionData.errors.alreadyRunning}</p>
</div>
)}
</>
);
}
In usual fashion, let’s break down this large chunk of code.
• Action - When the user fills out the session’s details and hits Start Session we want to receive the form data as a POST request and create a new session for the currently logged in user. So, the action starts with the requireUserId(request) check. It’s a helper method that comes with the stack and simply re-routes unauthorized users to the login page or returns the authorized user’s id. Then we’re retrieving the user input for the session’s content column using request.formData() which gives us access to all POST data. If the content is not filled in or crosses a certain length, we return an error message. Otherwise we start the session and route the user to the newly created session page.
• startSessionsForUser - This is a server only function that creates a new session entry in the database. Let’s add this to our models/session.server.ts file:
// … other imports
import type { User, Session } from "@prisma/client";
import startOfDay from "date-fns/startOfDay";
import endOfDay from "date-fns/endOfDay";
// … other functions
export const startSessionsForUser = async (
userId: User["id"],
content: Session["content"]
) => {
const runningSession = await prisma.session.findFirst({
where: {
createdAt: {
lte: endOfDay(new Date()),
gte: startOfDay(new Date()),
},
userId,
},
});
if (runningSession) {
throw new Error("already-running-session");
}
return prisma.session.create({ data: { userId, content } });
};
This function receives a userId and the content of the session. If there’s already a session created by the user within the boundaries of today, then it throws an error, otherwise, it creates a new session entry. Manipulating dates is kind of weird in JS so I prefer dropping a library into my project for handling dates. In this case I’m using date-fns lib but feel free to use your preferred lib.
• Loader: We want only authorized users to see this page so the loader simply runs the requireUserId() function which will logout unauthenticated users and prevent them from seeing the session create form.
• Transition - Remix comes with a very useful useTransition() hook which gives you access to various states of a page. As you submit a form from a page, send data to the server and wait for the response, transition.state will change to submitting throughout that duration. Using this, we are disabling the submit button to prevent users from accidentally attempting to create multiple sessions.
• Error handling - As users attempt to start a session, we get back either validation error for the content field or we get a specific error if there’s already a running session, we are handling both via UI display of error message by accessing the data from useActionData().
• Form component - The Form component from remix is just a small syntactic sugar on top of the browser’s form component. It maintains all the default behavior of a form. You can read up on it in more depth here: https://remix.run/docs/en/v1/guides/data-writes#plain-html-forms
New session form
If you’ve followed all the above steps, open http://localhost:3000/sessions/new in your browser and you should see a page like above. However, if you fill out the input field and hit Start Session, it will take you to a 404 not found page but that doesn’t mean the button didn’t work. You can manually go back to http://localhost:3000/sessions and see the newly created session by yourself on the list page. Something like this:
Session list page
Q&A
With sessions list and create pages working well, we can now build Q&A per session. Each session should be accessible via sessions/:sessionId url where :sessionId is a variable that will be replaced by ids of sessions. In order to map dynamic route param to a route file in Remix, we need to start the file name with $ sign suffixed by the name of the parameter. So, in our case, let’s create a new file routes/sessions/$sessionId.tsx with the following code:
import type { ActionFunction, LoaderFunction } from "@remix-run/node";
import { json, redirect } from "@remix-run/node";
import {
Form,
useCatch,
useLoaderData,
Outlet,
useParams,
} from "@remix-run/react";
import invariant from "tiny-invariant";
import {
addAnswerToQuestion,
addQuestionToSession,
getSession,
} from "~/models/session.server";
import { getUserId, requireUserId } from "~/session.server";
import { Button } from "~/components/shared/button";
import { QuestionAnswer } from "~/components/sessions/question-answer";
import { Header } from "~/components/shared/header";
type ActionData = {
errors?: {
title?: string;
body?: string;
};
};
type LoaderData = {
session: Awaited<ReturnType<typeof getSession>>;
currentUserId?: string;
};
export type OutletContext = LoaderData;
export const loader: LoaderFunction = async ({ request, params }) => {
invariant(params.sessionId, "sessionId not found");
const session = await getSession(params.sessionId);
if (!session) {
throw new Response("Not Found", { status: 404 });
}
const currentUserId = await getUserId(request);
return json<LoaderData>({ session, currentUserId });
};
export const action: ActionFunction = async ({ request, params }) => {
const userId = await requireUserId(request);
invariant(params.sessionId, "sessionId not found");
const formData = await request.formData();
const questionId = formData.get("answer_to_question");
if (typeof questionId === "string") {
const answer = formData.get("answer");
if (typeof answer !== "string" || answer?.trim()?.length < 3) {
return json<ActionData>(
{ errors: { title: "Answer is required" } },
{ status: 400 }
);
}
await addAnswerToQuestion({ id: questionId, userId, answer });
return redirect(`/sessions/${params.sessionId}/questions/${questionId}`);
}
const content = formData.get("content");
if (typeof content !== "string" || content?.trim()?.length < 3) {
return json<ActionData>(
{ errors: { title: "Question is required" } },
{ status: 400 }
);
}
const question = await addQuestionToSession({
userId,
sessionId: params.sessionId,
content,
});
return redirect(`/sessions/${params.sessionId}/questions/${question.id}`);
};
export default function SessionDetailsPage() {
const params = useParams();
const data = useLoaderData() as LoaderData;
const dateFormatter = new Intl.DateTimeFormat("en-GB");
return (
<>
<Header />
<div className="mx-auto flex w-full flex-row justify-between px-6 md:w-5/6 lg:w-4/5 xl:w-2/3">
<div className={params.questionId ? "w-1/2" : "w-full"}>
<h3 className="flex flex-row items-center justify-between">
<span className="text-2xl font-bold">
{data.session?.user.name}
</span>
<span>
{dateFormatter.format(
new Date(data.session?.createdAt || Date.now())
)}
</span>
</h3>
<p className="py-6">{data.session?.content}</p>
{data.currentUserId !== data.session?.userId && (
<div className="mb-4 rounded bg-gray-100 p-3">
<Form method="post">
<div>
<label htmlFor="question" className="block">
<div className="mb-2 flex flex-row items-center">
<img
alt="Question logo"
src="/icons/question.svg"
width={45}
height={45}
/>
<span className="ml-2 leading-4">
Ask your question
<br />
<i className="text-xs text-gray-800">
Please be concise and expressive. No explicit content
allowed!
</i>
</span>
</div>
<textarea
rows={5}
name="content"
className="block w-full rounded p-2"
/>
</label>
</div>
<div className="mt-2 flex justify-end">
<Button type="submit" isAction>
Ask Question
</Button>
</div>
</Form>
</div>
)}
{!!data.session?.questions?.length && (
<ul>
{data.session.questions.map((q) => (
<QuestionAnswer
question={q}
key={`question_${q.id}`}
canAnswer={data.currentUserId === data.session?.userId}
isSelected={params.questionId === q.id}
/>
))}
</ul>
)}
</div>
<Outlet context={data} />
</div>
</>
);
}
export function ErrorBoundary({ error }: { error: Error }) {
console.error(error);
return <div>An unexpected error occurred: {error.message}</div>;
}
export function CatchBoundary() {
const caught = useCatch();
if (caught.status === 404) {
return <div>Session not found</div>;
}
throw new Error(`Unexpected caught response with status: ${caught.status}`);
}
With this one, we will quickly skim through some of the concepts we’ve discussed already and focus on the new bits more:
• Loader: returns the session entry and the current user’s id. It invokes a call to invariant which is an external library for easily checking if a variable is truthy and throwing error if not.
• getSession: receives the sessionId as the only argument. Let’s implement it in our models/session.server.ts file:
export const getSession = (id: Session["id"]) =>
prisma.session.findFirst({
where: { id },
include: {
questions: {
include: {
user: true,
},
},
user: true,
},
});
Notice how it includes all questions belonging to a session and the users who asked those questions as well.
• Action: this page can do 2 things based on who is viewing it. The host of the session can answer any question but can’t ask a question. All the other users can only do the opposite. So the action needs to handle both actions and the way we differentiate between the two is via the formData.get("answer_to_question") input. From the client side, we will only send this when the host is submitting an answer to a question. Notice how we are redirecting the user to /sessions/${params.sessionId}/questions/${questionId} in case of either action? That’s our entry to nested routing. Keep this in the back of your head for later.
• addAnswerToQuestion: This helper adds the host’s answer to a question by taking in an object as an argument which contains the question’s id and answer input. Let’s implement this in models/session.server.ts:
import type { User, Session, Question } from "@prisma/client";
export const addAnswerToQuestion = async ({
id,
userId,
answer,
}: Pick<Question, "id" | "userId" | "answer">) => {
const existingQuestion = await prisma.question.findFirst({
where: { id },
include: { session: true },
});
if (!existingQuestion) {
throw new Error("question-not-found");
}
// Only allow the author of the session to answer questions
if (existingQuestion.session.userId !== userId) {
throw new Error("not-session-author");
}
return prisma.question.update({ where: { id }, data: { answer } });
};
Notice that the implementation checks if the user making the request is indeed the host of the session or not and throws a specific error if not.
• addQuestionToSession: This one adds any non-host user’s question to a session by taking in an object argument containing the user’s and session’s id and the question input. This is how it’s implemented in models/session.server.ts:
export const addQuestionToSession = async ({
userId,
sessionId,
content,
}: Pick<Question, "userId" | "sessionId" | "content">) => {
const existingQuestion = await prisma.question.findFirst({
where: {
userId,
sessionId,
content,
},
});
if (existingQuestion) {
throw new Error("already-asked");
}
const isSessionHost = await prisma.session.findFirst({
where: {
userId,
id: sessionId,
},
});
if (isSessionHost) {
throw new Error("host-can-not-ask-questions");
}
return prisma.question.create({ data: { sessionId, userId, content } });
};
Notice how we are blocking a user from posting the same question more than once per session?
• useParams hook: This hook is another proxy to react router which simply gives us access to any route parameter such as sessionId in our case.
• Question form: To all non-host, authenticated users, we show a question input form on every session above the list of previously posted questions.
• QuestionAnswer component: To keep a large chunk of code shareable and isolated, we put a single question in a shared component file. We will see why in a little bit but let’s see the implementation of this component first. Create a new file app/components/sessions/question-answer.tsx and put the following code in there:
import { Form, Link } from "@remix-run/react";
import React from "react";
import type { Question } from "~/models/session.server";
import type { User } from "~/models/user.server";
import { Button } from "~/components/shared/button";
export const QuestionAnswer: React.FC<{
question: Question & { user: User };
isSelected?: boolean;
as?: React.ElementType;
canAnswer: boolean;
hideCommentsLink?: boolean;
}> = ({
question,
hideCommentsLink,
isSelected,
as: Component = "li",
canAnswer,
...rest
}) => {
const dateFormatter = new Intl.DateTimeFormat("en-GB", {
dateStyle: "full",
timeStyle: "short",
});
return (
<Component
className={`mb-4 rounded p-2 ${isSelected ? "bg-gray-50" : ""}`}
{...rest}
>
<div className="flex flex-row">
<div className="max-w-40 mr-2">
<img
width={50}
height={50}
alt="Question icon"
src="/icons/question.svg"
/>
</div>
<p>
<span className="font-semi-bold text-xs text-gray-500">
{question.user?.name} at{" "}
{dateFormatter.format(new Date(question.createdAt))}
{!hideCommentsLink && (
<>
{" "}
|{" "}
<Link className="underline" to={`questions/${question.id}`}>
Comments
</Link>
</>
)}
</span>
<br />
{question.content}
</p>
</div>
{question.answer ? (
<div className="mt-2 pl-10">
<div className="flex flex-row p-2 shadow-sm">
<img
width={50}
height={50}
alt="Question icon"
src="/icons/answer.svg"
/>
<p>
<span className="font-semi-bold text-xs text-gray-500">
{dateFormatter.format(new Date(question.updatedAt))}
</span>
<br />
{question.answer}
</p>
</div>
</div>
) : (
canAnswer && (
<div className="mt-4 px-4">
<Form method="post">
<textarea
rows={5}
name="answer"
className="block w-full rounded p-2"
/>
<div className="mt-2 flex justify-end">
<Button name="answer_to_question" value={question.id} isAction>
Answer
</Button>
</div>
</Form>
</div>
)
)}
</Component>
);
};
Notice that this component embeds a form inside of it which means every question will render this form for the host to give them an easy way to add answers to questions that they have not answered yet and the submit button of the form has name="answer_to_question" value={question.id} props which helps us signal the backend (action) that this form submission needs to be tackled as answer input by the host.
You may have also noticed that every question links out to to={questions/${question.id}} which brings us to the nested routing topic. Let’s take a look at that now.
Nested routing
In a traditional react app, you would split up a page in multiple components and the components internally load their own data or get fed by a global data store that passes the data to it. In Remix, you would do that via nested routing where a page can embed another page inside which has its own lifecycle such as data loader, action, error bounder etc. This is incredibly powerful and adds a whole new level of reliability and speed in UX. We are going to use this to show a comment thread per question in a session.
To facilitate this, we added a <Outlet context={data.session} /> component in the session details page. Outlet is the container for nested page content and it gives us the ability to build the layout for a child page at the parent level. When the user goes into a nested route, this will be replaced by the html rendered by the lowest level of the nested page route.
Now, to access the comment thread, we are routing users to session/:sessionId/questions/:questionId route so to match that in file system, we need to create a new directory inside in routes/sessions/$sessionId/questions and create a file named $questionId.tsx inside of it. Notice that we now have a file with the name $sessionId.tx and a directory named $sessionId. This may be confusing but is as designed. This tells Remix to use the $sessionId.tsx file as the parent page and render any nested routes from the $sessionId directory. Now let’s put in the following code in the $questionId.tsx file:
import type { LoaderFunction, ActionFunction } from "@remix-run/node"; // or "@remix-run/cloudflare"
import {
Form,
Link,
useLoaderData,
useOutletContext,
useParams,
useTransition,
} from "@remix-run/react";
import type { Comment } from "~/models/session.server";
import {
addCommentToAnswer,
getCommentsForQuestion,
} from "~/models/session.server";
import invariant from "tiny-invariant";
import { json, redirect } from "@remix-run/node";
import type { OutletContext } from "../../$sessionId";
import { requireUserId } from "~/session.server";
import type { User } from "~/models/user.server";
import { QuestionAnswer } from "~/components/sessions/question-answer";
import { Button } from "~/components/shared/button";
import React, { useEffect, useRef } from "react";
type LoaderData = {
comments: Awaited<ReturnType<typeof getCommentsForQuestion>>;
};
type ActionData = {
errors?: {
title?: string;
body?: string;
};
};
export const loader: LoaderFunction = async ({ params }) => {
invariant(params.questionId);
const data: LoaderData = {
comments: await getCommentsForQuestion(params.questionId),
};
return json(data);
};
export const action: ActionFunction = async ({ request, params }) => {
const userId = await requireUserId(request);
invariant(params.sessionId, "sessionId not found");
invariant(params.questionId, "questionId not found");
const formData = await request.formData();
const content = formData.get("content");
if (typeof content !== "string" || content?.trim()?.length < 3) {
return json<ActionData>(
{ errors: { title: "Comment is required" } },
{ status: 400 }
);
}
await addCommentToAnswer({
userId,
content,
questionId: params.questionId,
});
return redirect(
`/sessions/${params.sessionId}/questions/${params.questionId}`
);
};
export default function SessionQuestion() {
const params = useParams();
const commentFormRef = useRef<HTMLFormElement>(null);
const transition = useTransition();
const outletData = useOutletContext<OutletContext>();
const data = useLoaderData();
const question = outletData?.questions.find(
(q) => q.id === params.questionId
);
const isCommenting = transition.state === "submitting";
useEffect(() => {
if (!isCommenting) {
commentFormRef?.current?.reset();
}
}, [isCommenting]);
if (!question) return null;
const dateFormatter = new Intl.DateTimeFormat("en-GB", {
dateStyle: "full",
timeStyle: "short",
});
return (
<div className="w-1/2">
<div className="pl-8">
<Link
to={`/sessions/${params.sessionId}`}
className="bg-gray-500 rounded-sm px-2 py-1 text-white flex flex-row justify-between"
>
<span>Thread</span>
<span>✕</span>
</Link>
<QuestionAnswer question={question} as="div" hideCommentsLink />
<div className="bg-gray-100 p-3 mb-4 rounded">
<Form method="post" ref={commentFormRef}>
<label htmlFor="comment" className="block">
<div className="flex flex-row mb-2 items-center">
<img
alt="Question logo"
src="/icons/comment.svg"
width={45}
height={45}
/>
<span className="ml-2 leading-4">
Add a comment
<br />
<i className="text-xs text-gray-800">
Please be polite. No explicit content allowed!
</i>
</span>
</div>
<textarea
rows={5}
className="w-full block rounded p-2"
name="content"
/>
</label>
<div className="mt-2 flex justify-end">
<Button type="submit" isAction>
Comment
</Button>
</div>
</Form>
</div>
<ul>
{data.comments?.map((comment: Comment & { user: User }) => (
<li key={`comment_${comment.id}`} className="mt-4">
<div className="flex flex-row">
<div>
<img
width={40}
height={40}
alt="Question icon"
className="mr-2"
src="/icons/comment.svg"
/>
</div>
<p>
<span className="font-semi-bold text-xs text-gray-500">
{comment.user?.name} at{" "}
{dateFormatter.format(new Date(comment.createdAt))}
</span>
<br />
<span className="text-gray-800 text-sm">{comment.content}</span>
</p>
</div>
</li>
))}
</ul>
</div>
</div>
);
}
Here, we’re using that question-answer.tsx component to display the same UI component we show under the session but in this case at the top of the comment thread, to give readers context for the comments. We are also placing a form inside of it through which, any authenticated user can post a comment. Let’s check out the 2 new server functions we’re using in the loader and then action for this page from models/session.server.ts:
import type { User, Session, Question, Comment } from "@prisma/client";
// … previous code
export const addCommentToAnswer = async ({
questionId,
userId,
content,
}: Pick<Comment, "questionId" | "userId" | "content">) => {
return prisma.comment.create({ data: { questionId, userId, content } });
};
export const getCommentsForQuestion = async (questionId: string) => {
return prisma.comment.findMany({
where: { questionId },
include: { user: true },
});
};
A couple of noteworthy thing in this component are:
• useOutletContext hook: This gives us access to all the props passed to the child page via the <Outlet … /> component in the parent page. So, here, we have access to the entire session with all the questions inside of it and instead of querying for the single question of the thread, we are simply picking it out of the already passed data.
• Loading comments: We are loading all comments for a question without pagination, which is not a great idea for any production app.
Wrap up
If you’ve followed all the previous steps, open the app in an incognito window and create a new account. Then if you click into the previously created session, you should see an input field to ask a question:
Ask question form
Now if you type up a question and post it from that new account, you should see something like this:
Thread view
Which shows your comment, opens the comment as a thread on the right hand side and lets you or any other user add a comment to the thread.
Finally, if you go back to the other browser window where you are logged in as the host of the session and refresh the session page, you should see the comment there with an input right underneath to post your answer:
Answer view
What’s next?
You’ve done an amazing job following through till here so please give yourself a round of applause! If you’re like me and can never get enough of shiny new JS things, you might be wondering: “This is great but is this something I would use as a user?” and if you’re true to yourself then the answer would be a big fat NO. So I will leave you with a few ideas that can make this quickly put together toy app into a production-ready app that might get some traction in the real world:
• Real time data sync - AMA sessions are all about timing. At least the good ones are. People hosting them don’t have the time to hang around and hit refresh every 10s to look for new comments/questions etc. So All of those should be synced in realtime and highlighted to the host. Same for the participants.
• Pagination - As mentioned throughout the post, we cut some corners in data loading that will certainly not scale in a real world app. Adding pagination to all queries would be a good learning experience too.
• Session timer and future session: Since sessions on this app are time-boxed per day, showing a timer for when the session ends may add an element of thrill to the experience. Another killer feature would be allowing hosts schedule sessions for the future and create some hype around it by showcasing upcoming session on the home page in a more highlighted way
Resources
Published 26 Jul 2022
I write a lot of code at my day job, side hustles and for fun.
Foysal Ahamed on Twitter | __label__pos | 0.946892 |
Everything about 1551
Discover a lot of information on the number 1551: properties, mathematical operations, how to write it, symbolism, numerology, representations and many other interesting things!
Mathematical properties of 1551
Questions and answers
Is 1551 a prime number? No
Is 1551 a perfect number? No
Number of divisors 8
List of dividers 1, 3, 11, 33, 47, 141, 517, 1551
Sum of divisors 2304
How to write / spell 1551 in letters?
In letters, the number 1551 is written as: One thousand five hundred and fifty-one. And in other languages? how does it spell?
1551 in other languages
Write 1551 in english One thousand five hundred and fifty-one
Write 1551 in french Mille cinq cent cinquante et un
Write 1551 in spanish Mil quinientos cincuenta y uno
Write 1551 in portuguese Mil quinhentos cinqüenta e um
Decomposition of the number 1551
The number 1551 is composed of:
2 iterations of the number 1 : The number 1 (one) represents the uniqueness, the unique, a starting point, a beginning.... Find out more about the number 1
2 iterations of the number 5 : The number 5 (five) is the symbol of freedom. It represents change, evolution, mobility.... Find out more about the number 5
Mathematical representations and links
Other ways to write 1551
In letter One thousand five hundred and fifty-one
In roman numeral MDLI
In binary 11000001111
In octal 3017
In hexadecimal 60f
In US dollars USD 1,551.00 ($)
In euros 1 551,00 EUR (€)
Some related numbers
Previous number 1550
Next number 1552
Next prime number 1553
Mathematical operations
Operations and solutions
1551*2 = 3102 The double of 1551 is 3102
1551*3 = 4653 The triple of 1551 is 4653
1551/2 = 775.5 The half of 1551 is 775.500000
1551/3 = 517 The third of 1551 is 517.000000
15512 = 2405601 The square of 1551 is 2405601.000000
15513 = 3731087151 The cube of 1551 is 3731087151.000000
√1551 = 39.38273733503 The square root of 1551 is 39.382737
log(1551) = 7.3466551631765 The natural (Neperian) logarithm of 1551 is 7.346655
log10(1551) = 3.1906117978136 The decimal logarithm (base 10) of 1551 is 3.190612
sin(1551) = -0.81153293884887 The sine of 1551 is -0.811533
cos(1551) = 0.58430667389934 The cosine of 1551 is 0.584307
tan(1551) = -1.3888818579345 The tangent of 1551 is -1.388882
Some random numbers
52
86
88
7
18
33
52
20
29
49
25
9
53
54
3
75
36
62 | __label__pos | 0.909478 |
0
Two peers already exchanged their ECDSA (curve secp256k1) public keys using a secure channel.
They want to establish an authenticated encrypted channel between them. They will use CCM mode and with the AES block cypher (as implemented in the SJCL crypto library).
Is it safe for them to use as a key for CCM the output of PBKDF2(iter=1000) of the other peer's pubkey? Is there a better solution without exchanging more data off channel?
(public keys are 33 bytes long).
EDITED: These pubkeys are not public, only shared between the two peers.
3
This seems... confused. PBKDF2 is a Password-Based Key Derivation Function. It is used to process a password, i.e. a secret piece of data that both parties share.
In your case, they don't share any secret piece of data. They know each other's public keys, which are public, so they are known to everybody. Putting them in PBKDF2 won't turn them secret.
2
• Thanks for your comment. pubkeys in this case are no public..., are derived public keys from a extended public key (en.bitcoin.it/wiki/BIP_0032), what are shared between the peers but not to strangers.
– ematiu
Apr 30 '14 at 12:57
• It is a strange notion, to keep a public key "private". In particular, a public key can be recomputed from a signature (if the signed message is known), so it tends to "leak". In any case, PBKDF2 is meant to strengthen low-entropy secrets which are amenable to exhaustive search; if you "discreet keys" are really private (I doubt it, but hey, let's assume that it happens that way), they don't need PBKDF2; and if they are not private, then PBKDF2 won't make them "more private".
– Tom Leek
Apr 30 '14 at 13:38
0
If the keys are actually secret, then this would work ok, but at that point, why not just pre-exchange a symmetric key for use on the communication channel? This is still a very, very odd and borderline inappropriate use of the algorithms since it is confusing and easily messed up due to using terms like "public key" for a shared secret.
If you are relying on a shared secret, there is no reason to incur the added expense of using a much longer asymmetric key with more complicated encrytion/decryption logic.
Your Answer
By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy
Not the answer you're looking for? Browse other questions tagged or ask your own question. | __label__pos | 0.586414 |
7/9 SyntaxError: expected expression, got keyword 'else'
#1
this is my code probably not very neat but this is it and id appreciate some help as im sure its right, obviously it cant be but yeah.
can someone help me pleasee lol.
else if(choice1 === "paper") {
if(choice2 === "rock") {
return "paper wins"
}
else {
return "scissors wins"
}
}
#2
Seems to be ok so far, what is the error message and what is the rest of the code?
#3
ok so i just added an if statement and its now telling me that rock wins instead of scissors.
var compare = function(choice1,choice2)
{
if(choice1 === choice2) {
return "The result is a tie!"
}
else if(choice1 === "rock") { }
if(choice2 === "scissors") {
return "rock wins";
}
else {
return "paper wins";
}
if (choice1 === " ") {
}
else if(choice1 === "paper") {
if(choice2 === "rock") {
return "paper wins"
}
else {
return "scissors wins"
}
}
};
#4
Ok the idea is that you nest the if/else inside the else if instead of just leaving the else if useless:
else if(choice1 === "rock") {
if(choice2 === "scissors") {
return "rock wins";
}
else {
return "paper wins";
}
}
Now this means something like if choice1 === "rock" and choice2 === "scissors" then "rock wins" or if choice1 === "rock" and choice2 is not scissors then "paper wins" as this is the only chance left as rock is covered by tie and scissors by the case directly in front of this. So if you structure this case like you did for the next then it should work. Also you're then still in the "else if"-chain and don't need a useless if to start an else if again.
#5
allright thanks for your help man :smile:
#6
I have the same error message (syntaxerror:expected expression, got keyword 'else') and I'm still confused by your explanation. I thought that we needed to write another else if statement where paper wins and return with paper wins else scissors win according to the instructions. Can you please explain to me what I'm doing wrong, I tried following the instructions based on the previous exercise similar to this one? My code is posted below.
var compare=function(choice1, choice2){
if(choice1===choice2){
return "The result is a tie!";
}
else if (choice1==="rock"){
if(choice2==="scissors"){
return "rock wins";
}
else{
return"paper wins";
}
}
}
else if (choice1==="paper"){
if (choice2==="rock"){
return "paper wins";
}
else {
return "scissors wins";
}
}
}
#7
var compare=function(choice1, choice2){
if(choice1===choice2){
return "The result is a tie!";
}
else if (choice1==="rock"){
if(choice2==="scissors"){
return "rock wins";
}
else{
return"paper wins";
} // else
} // else if
} // function
as far as I can see your closing the function to early so that the else if part is now outside but else statements can't be without if's so you get the error.
#8
please help i am getting the same error
var compare = function(choice1, choice2)
{
if (choice1 === choice2)
return "The result is a tie!"
else if (choice1 === "rock")
{
if(choice2 === "scissors")
return"rock wins"
}
else{
return"paper wins"
}
else if (choice1 === "paper") {
if (choice2 === "rock") {
return "paper wins"
}
else {
return "scissors wins"
}
}
}
#9
Is the lack of {} intentionally? Because here it went wrong:
else if (choice1 === "rock")
{
if(choice2 === "scissors")
return"rock wins"
}
else{
return"paper wins"
}
the problem is that the else should belong to the choice2 option like it does in your second case:
else if (choice1 === "paper") {
if (choice2 === "rock") {
return "paper wins"
}
else {
return "scissors wins"
}
}
but currently the else ends the whole condition meaning anything that is not tie or choice1 being rock results in paper wins. So as said you might want to fix it according to your other case.
#10
Bonjour j’ai le même problème je n’arrive pas à valider le cours car selon le script j’ai une erreur de syntaxe. Pourtant, quand je vérifie toutes les accolades sont bien fermées. Quelqu’un pourrait m’aider ?
var choixUtilisateur = prompt("Choisissez-vous pierre, feuille, ou ciseaux ?");
var choixOrdi = Math.random();
if (choixOrdi < 0.34) {
choixOrdi = "pierre";
} else if(choixOrdi <= 0.67) {
choixOrdi = "feuille";
} else {
choixOrdi = "ciseaux";
} console.log("Ordinateur : " + choixOrdi);
var comparer = function(choix1, choix2)
{
if (choix1 === choix2)
{
return "Egalité !";
}
else if(choix1 === "pierre")
{
if (choix2 === "ciseaux")
{
return "pierre gagne";
}
else
{
return "feuille gagne";
}
}
else if(choix1 === "feuille")
{
if (choix2 === "pierre")
{
return "feuille gagne";
}
else
{
return "ciseaux gagnent";
}
else if(choix1 === "ciseaux")
{
if (choix2 === "feuille")
{
return "ciseaux gagnent";
}
else
{
return "pierre gagne";
}
}
}
};
comparer(choixUtilisateur, choixOrdi);
#11
Sry my french is rusty, I can read a bit but writing is more difficult :frowning:
You forgot a closing ) here:
else if(choix1 === "feuille")
{
if (choix2 === "pierre")
{
return "feuille gagne";
}
else
{
return "ciseaux gagnent";
}
// } <-- here
else if(choix1 === "ciseaux")
So the else if for “ciseaux” is nested and that leads to else if following on else which is impossible.
#12
Hello. Please, help me out, I broke my head on this “else” error:
var compare = function(choice1, choice2) {
if (choice1 === choice2) {
return "The result is a tie!";
}
else if (choice1 === "rock") {
if (choice2 === "scissors") {
return "rock wins";
}
else {
return "paper wins";
}
}
else if (choice1 === "paper") {
if (choice2 === "rock"); {
return "paper wins";
}
else {
return "scissors wins";
}
}
}
#13
Hi this part you should remove the ; after the if conditon
if (choice2 === "rock"); <== this one
#14
@wizmarco is right and faster :slight_smile:
Here is a longer explanation about what happens with the semicolon: | __label__pos | 0.999913 |
/* this header file comes from libowfat, http://www.fefe.de/libowfat/ */ #ifndef FMT_H #define FMT_H /* for size_t: */ #include /* for time_t: */ #include #define FMT_LONG 41 /* enough space to hold -2^127 in decimal, plus \0 */ #define FMT_ULONG 40 /* enough space to hold 2^128 - 1 in decimal, plus \0 */ #define FMT_8LONG 44 /* enough space to hold 2^128 - 1 in octal, plus \0 */ #define FMT_XLONG 33 /* enough space to hold 2^128 - 1 in hexadecimal, plus \0 */ #define FMT_LEN ((char *) 0) /* convenient abbreviation */ /* The formatting routines do not append \0! * Use them like this: buf[fmt_ulong(buf,number)]=0; */ /* convert signed src integer -23 to ASCII '-','2','3', return length. * If dest is not NULL, write result to dest */ size_t fmt_long(char *dest,signed long src); /* convert unsigned src integer 23 to ASCII '2','3', return length. * If dest is not NULL, write result to dest */ size_t fmt_ulong(char *dest,unsigned long src); /* convert unsigned src integer 0x23 to ASCII '2','3', return length. * If dest is not NULL, write result to dest */ size_t fmt_xlong(char *dest,unsigned long src); /* convert unsigned src integer 023 to ASCII '2','3', return length. * If dest is not NULL, write result to dest */ size_t fmt_8long(char *dest,unsigned long src); size_t fmt_longlong(char *dest,signed long long src); size_t fmt_ulonglong(char *dest,unsigned long long src); size_t fmt_xlonglong(char *dest,unsigned long long src); #define fmt_uint(dest,src) fmt_ulong(dest,src) #define fmt_int(dest,src) fmt_long(dest,src) #define fmt_xint(dest,src) fmt_xlong(dest,src) #define fmt_8int(dest,src) fmt_8long(dest,src) /* Like fmt_ulong, but prepend '0' while length is smaller than padto. * Does not truncate! */ size_t fmt_ulong0(char *,unsigned long src,size_t padto); #define fmt_uint0(buf,src,padto) fmt_ulong0(buf,src,padto) /* convert src double 1.7 to ASCII '1','.','7', return length. * If dest is not NULL, write result to dest */ size_t fmt_double(char *dest, double d,int max,int prec); /* if src is negative, write '-' and return 1. * if src is positive, write '+' and return 1. * otherwise return 0 */ size_t fmt_plusminus(char *dest,int src); /* if src is negative, write '-' and return 1. * otherwise return 0. */ size_t fmt_minus(char *dest,int src); /* copy str to dest until \0 byte, return number of copied bytes. */ size_t fmt_str(char *dest,const char *src); /* copy str to dest until \0 byte or limit bytes copied. * return number of copied bytes. */ size_t fmt_strn(char *dest,const char *src,size_t limit); /* "foo" -> " foo" * write padlen-srclen spaces, if that is >= 0. Then copy srclen * characters from src. Truncate only if total length is larger than * maxlen. Return number of characters written. */ size_t fmt_pad(char* dest,const char* src,size_t srclen,size_t padlen,size_t maxlen); /* "foo" -> "foo " * append padlen-srclen spaces after dest, if that is >= 0. Truncate * only if total length is larger than maxlen. Return number of * characters written. */ size_t fmt_fill(char* dest,size_t srclen,size_t padlen,size_t maxlen); /* 1 -> "1", 4900 -> "4.9k", 2300000 -> "2.3M" */ size_t fmt_human(char* dest,unsigned long long l); /* 1 -> "1", 4900 -> "4.8k", 2300000 -> "2.2M" */ size_t fmt_humank(char* dest,unsigned long long l); /* "Sun, 06 Nov 1994 08:49:37 GMT" */ size_t fmt_httpdate(char* dest,time_t t); /* internal functions, may be independently useful */ char fmt_tohex(char c); #define fmt_strm(b,...) fmt_strm_internal(b,__VA_ARGS__,(char*)0) size_t fmt_strm_internal(char* dest,...); #ifndef MAX_ALLOCA #define MAX_ALLOCA 100000 #endif #define fmt_strm_alloca(a,...) ({ size_t len=fmt_strm((char*)0,a,__VA_ARGS__)+1; char* c=(len | __label__pos | 0.985756 |
Demostraciones.
¿Qué es una demostración?
Hipótesis.
Conclusión.
Métodos Deductivos de demostración. Según el sistema aristotélico,el método deductivo es un proceso que parte de un conocimiento general, y arriba a uno particular. La aplicación del método deductivo nos lleva a un conocimiento con grado de certeza absoluta, y esta cimentado en proposiciones llamadas SILOGISMOS.
He aquí un ejemplo: “Todos las venezolanas son bellas” , (Este es el conocimiento general) “Marta Colomina es venezolana”
luego: “Marta Colomina es bella”
Se puede observar que partiendo de dos premisas, una de las cuales es una hipótesis general se llega a una conclusión particular. También es de hacer notar que en este ejemplo las premisas pueden ser verdaderas o pueden ser falsas, y por consiguiente la conclusión puede ser igualmente verdadera o falsa.
En la lógica formal y sobre todo en el universo matemático, el proceso deductivo tiene un significado un poco diferente, pues esta basado en AXIOMAS, o proposiciones que son verdaderas por definición.
Por ejemplo, un axioma es: “EL TODO ES MAYOR QUE LA PARTE” , otro axioma es “DOS COSAS IGUALES A UNA TERCERA SON IGUALES ENTRE SI”. El primer axioma define el concepto de MAYOR, y el segundo el concepto de IGUAL. El método deductivo nos permite partir de un conjunto de hipótesis y llegar a una conclusión, pudiendo ser esta inclusive que el conjunto de hipótesis sea invalido. Generalmente, en matemáticas, la deducción es un proceso concatenado del tipo "si A entonces B, si B entonces C, si C entonces D..." hasta llegar a una conclusión.
Al conjunto de HIPOTESIS + DEMOSTRACION + CONCLUSIÖN se denomina TEOREMA.
La práctica de los razonamientos deductivos en el proceso de desarrollo del pensamiento lógico matemático es muy importante. Constituye una herramienta fundamental para el trabajo en la matemática y otras ciencias..
Demostración por el método directo. Si tomamos una frase lógica condicional sencilla del tipo: P⇒Q Que podemos analizar como “ si se cumple P entonces se cumple Q” , esto lo hacemos de forma natural sin complicarnos en hacer análisis mas intensivos o mas extensivos pues lo hacemos de una forma innata. Si decimos: “El cielo esta encapotado, va a llover” estamos realizando una asociación de causa y efecto. En la cual “el cielo esta encapotado” es la causa y el efecto lógico es que, “va a llover”. Desde el punto de vista de la lógica esta relación es irrevocable. Así mismo en una relación matemática se puede verificaresta sencilla relación en la cual si se cumple la premisa P entonces se puede decir que se cumplira la consecuencia Q. A este proceso formal se le denomina “demostración mediante el método directo” es innecesario decir que si no se cumple o verifica P entoces su consecuencia tampoco se verificará. ¬P ⇒ ¬Q Supóngase que P ⇒ Q es una tautología, en donde P y Q pueden ser proposiciones compuestas, en las que intervengan cualquier número de variables propositivas, se dice que q se desprende lógicamente de p.
Supóngase una implicación de la forma.
(P1 ∧ P2 ∧ P3 ∧...∧ Pn) ⇒ Q
Es una tautología. Entonces está implicación es verdadera sin importar los valores de verdad de cualquiera de sus componentes. En este caso, se dice que q se desprende lógicamente de P1,P2,......,Pn. Se escribe. El camino que se debe seguir para llevar a cabo una demostración formal usando el método directo. Significa que sí se sabe que P1 es verdadera, P2 es verdadera,...... y Pn también es verdadera, entonces se sabe que Q es verdadera. La mayoría de los teoremas matemáticos cumplen con esta estructura básica:
(P1 ∧ P2 ∧ P3 ∧...∧ Pn) ⇒ Q
Donde las Pi condiciones son llamadas hipótesis o premisas, y Q es la conclusión. “Demostrar un teorema” es demostrar que la condicional es una tautología. Ojo, no se pide demostrar que la conclusión es verdadera, lo que se quiere es demostrar que Q es verdadera siempre y cuando todas las Pi condiciones son verdaderas. En conclusión podemos decir que: Cualquier demostración, sea de enunciados o matemática debe: a. Comenzar con las hipótesis. b. Debe seguir con las tautologías y reglas de inferencias necesarias para... c. Llegar a la conclusión.
A continuación se prueba un enunciado en donde se puede apreciar el uso tanto de las tautologías como de las reglas de inferencia. Sean p: Trabajo.
q: Ahorro. r: Compraré una casa. s: Podré guardar el automóvil en mi casa.
Analizar el siguiente argumento: "Si trabajo y ahorro, entonces compraré una casa. Si compro una casa, entonces podré guardar el coche en mi casa. Por consiguiente, si no puedo guardar el coche en mi casa, entonces no ahorro".
El enunciado anterior se puede representar como:
p ∧ q ⇒ r;
y
r ⇒ s; entonces
s' ⇒ q'
Equivale también a probar el siguiente teorema:
[(p ∧ q) ⇒ r] ∧ [r ⇒ s]; [s' ⇒ q']
Como se trata de probar un teorema de la forma general:
p1 ∧ p2 ∧......∧ pn entonces q
Se aplica el procedimiento general para demostración de enunciados válidos. A continuación se demuestra el teorema respaldando cada uno de sus pasos en tautologías o reglas de inferencia ya conocidas.
1.2.3.4.5.6.-
(p ∧ q) ⇒ r r ⇒s p⇒q q⇒r q⇒s ¬s ⇒ ¬q
Hipótesis Hipótesis Silogismo Hipotético Silogismo Hipotético
Conclusión. | __label__pos | 0.554514 |
Wednesday, 4 January 2012
Outound ISN/ITAD Dialling with FreeSWITCH
Just a short one, here's my extension configuration for dialing ISN/ITAD extensions from freeswitch. Replace $${local_itad} with your ITAD. This will match all numbers dialled with a * in them, so you may need to modify it to your needs.
<extension name="isn">
<condition field="destination_number" expression="^(\d+\*\d+)$">
<action application="enum" data="${destination_number} freenum.org" />
<action application="set" data="effective_caller_id_number=${effective_caller_id_number}*$${local_itad}" />
<action application="bridge" data="${enum_auto_route}" />
</condition>
</extension> | __label__pos | 0.87698 |
Главная
Математика 4 класс Моро, Бантова часть 1, 2
ГДЗ учебник по математике 4 класс Моро часть 1, 2
авторы: , , .
издательство: Просвещение 2016 год
Раздел:
Номер №258
90 * 6;
900 * 6;
9000 * 6;
810 : 9;
8100 : 9;
81000 : 9;
1409 * 5;
1507 * 8;
1608 * 8;
88 : 22 * 10;
77 : 11 * 100;
96 : 32 * 1000.
Решение
90 * 6 = 540;
900 * 6 = 5400;
9000 * 6 = 54000;
810 : 9 = 90;
8100 : 9 = 900;
81000 : 9 = 9000;
1409 * 5 = 14045 = 95;
1507 * 8 = 15056 = 94;
1608 * 8 = 16064 = 96;
88 : 22 * 10 = 4 * 10 = 40;
77 : 11 * 100 = 7 * 100 = 700;
96 : 32 * 1000 = 3 * 1000 = 3000. | __label__pos | 0.998897 |
Functional Specification Templates | A Complete Guide
Haleema Qayyum
By
Haleema Qayyum
Functional Specification Templates | A Complete Guide
Table of Contents
This article will explore what are functional specifications templates or documents, the different functional specs they have, why your team needs one, and how to make one.
When approaching a software development company with a project in mind or making or upgrading a product, creating the required documents seems overwhelming. Depending on the level of effort and scope, not every document may be essential for every new venture.
However, it’s good to provide a document listing all the requirements and point your team in the right direction to build a unified approach to work. So, here comes the functional specification document.
Development teams use it to formulate a rough estimation of the project and, once initiated, an in-depth needs analysis.
Functional Specifications Templates
What is a Functional Specification Template or Functional Requirements Document Template?
A functional specification document, also known as a functional requirement document, works like a blueprint that helps the development team understand how an application will function. It limits confusion and misdirection in a project and describes the user experience step by step.
Although functional specification documents are often related to web development and software, they play a role in any project. Whether it is a new product launch, upgrading and developing a software product, or the organizational changes or establishment of process, FSD is equally important.
A functional specification document tells developers what features they need to build and why. Also, it helps all the stakeholders in the process to work through their often-varying opinions by focusing on a set of goals.
Generally, the functional specification template shows both engineering and business expectations. And all stakeholders review and approve the FSD document.
As a result, a reference document comes for the proposed product. That document addresses all parts of the company, from sales staff to coders to designers.
Moreover, you can use a (DOC) functional specification document template to ensure that you contain all of the development information necessary in a document.
In addition, the FSD template ensures that the team focuses on the requirements rather than wasting time on defining the design of the specifications document.
This functional requirements document template is editable to meet the unique needs of each team.
Explanation
Traditionally, functional specification document template for web development tends to be dry, long, and often technical. But such documents may not be essential or even useful.
Because the agile functional requirements document’s primary purpose is to scope out the project for all shareholders, FRDs avert long technical discussions.
While you can comprise various types of requirements and supportive information, the apt way is to explain the FRD’s fundamental objectives.
The functional design document must describe the features, context, and functions you want to develop. The FRD should not replicate any of the other process or requirements documents.
Generally, Functional specifications document samples follow an approval process where business users verify that the solution focuses on their apprehensions. And technical reviewers ascertain the execution of the labeled solution.
Critical reviewers often include end-users, testers, technical writers, and product system owners. Finally, you proclaim that the document is complete when everyone approves the contents. Then, some companies go on to build the systems architecture document.
How Does it Help
Further, a functional requirements specification template helps as a reference document for the whole team. It shows what product developers should develop, what writers should document, what testers should test, and what salespeople will sell.
Also, before the development process, a written functional specification template illustrates the thorough consideration of the design and purpose.
Also, it shows that all investors are on the same page after specification approval. After the product coding, one should not write the specs to backfill the document.
Some developers and business analysts consider functional specifications, functional requirements two separate terms by saying that requirements describe what the software must do and that specifications define how the software must do it. In practice, you typically merge these two roles.
While reviewing the Functional specifications document template, you come across various forms. Your chosen format depends on what works best for your company.
Functional Requirements
Traditionally, this is for software and other technology utilizing the Waterfall development method. So, the Functional requirements list includes what the product “shall” do. For instance, “The vacuum shall pick and choose particles smaller than four mm.”
Use Cases
Mostly, use cases are on their own. However, organizations that prioritize customer experience typically integrate use cases into applicable specifications—using the case set functions and attributes in user behavior.
For example, “The customer double taps the phone screen. The screen is lit. The user swings the screen to the right to unlock the phone and its functionality.”
User Stories
User stories are at the heart of Agile development. And they explain the functionality of the product as what the customer wants to do. This approach lets teams maximize customer value in the most effective manner possible.
Project Management 150 Templates Bundle Ad
Who Uses Functional Specification Templates?
Generally, technical leads and business analysts make the documents and functional specifications. Then they share it with technical stakeholders and businesses to get reviews. And these reviews ensure that the supposed deliverable is on target.
You should use a functional specification template when developing and upgrading new software. Also, you can use these templates for web development, system engineering, and organizational changes, etc.
Usually, users of the specification template include the following groups:
• Coders or developers: who code the product.
• Designers: who makes the device, website, or user interface.
• Testers: Who claims that the coding works correctly and according to the specification.
• Marketers: who prepare a demand-generating document for the latest features.
• Sales teams: Who sells the product and features.
• User assistance or technical writers document how the product functions for the end-users, administrators, and other roles.
What is the Difference Between Functional and Nonfunctional Requirements?
You can divide requirements into functional and nonfunctional.
Functional Requirements:
These requirements depict an activity, behavior, or expected result from a system or product. For instance, “Print a document” or “separate particles from liquid.” Popular functional requirements include audit tracking and reporting, administrative functions, business rules, and authentication.
Non-functional Requirements:
These requirements show how something works. You can consider it as a constraint, parameter, or attribute. For example, usability, security, maintainability, performance, and regulatory requirements.
What is a Functional Specification Document in SAP?
In SAP, the functional specification document summarizes the product from the stakeholder’s point of view, with clear expectations of how the functionality applies to SAP. When you merge the FSD, and the software requirements document into one, you create functional specifications.
Functional Specifications Templates for Agile Development
Agile is based on discovering the most effective way to produce a valuable product for the user. In Agile development, traditional functional specifications documents and procedures are often perceived to be financially prohibitive. However, recording more detailed plans and drawings will increase transparency.
One of the most common tools for Agile specifications is the user story. User stories put functionality in the sense of what the user wants to do. You may group related user stories to form Agile Epics.
As with typical functional specifications, user stories define a task or functionality but not how developers can execute it. Often, user stories adopt the following syntax: “As a user, I intend to have something so that some profits derives from it.” Here are some more examples:
• As a cook, I want a widescreen to stay awake while cooking.
• As a driver, I want to know when petrol is running low.
• And as a dog, I want my portion of food to release my bowl of food at 3 am every morning.
And to test whether a user story is well created, apply the “INVEST” acronym.
Independent: Can the story stand by itself?
Negotiable: Can you remove or change this story without affecting the rest of the project?
Valuable: Does this story have worth or value to the end-user?
Estimable: Can you assess the size of the story?
Small: Is the user story short enough?
Testable: Can you test this user story?
You can assign a name and numbered ID to the monitoring tool’s user stories for project management purposes. In addition, you can give preference to growth, sprint, and story status. Stories head to the backlog of Agile product backlog.
Generally, user story templates are straightforward: they concentrate on defining the user’s role, mission, and what the task should do.
Functional Specifications Template for a Website
Planning a website calls for a high-level view of the technologies required and a thorough understanding of who can access the site and what you (as the site owner) expect users to do.
User stories used in Agile development will help you concentrate on user needs. Other queries also help to contextualize the website.
Our website specification document template poses various questions to help you identify the website’s intent and any relevant considerations, such as security standers such as PCI for financial transactions.
Functional Specifications Templates for Software
Using the Waterfall approach, you will also use the standard specification or functional requirement template when designing software and other technology.
Functional specifications list the characteristics and functionality of what is to be achieved by the product. e.g., For example, “The vacuum will pick up fragments smaller than four mm.”
You can also choose a template that focuses more on the business specifications. Our minimalist template allows you room to detail the intent of your product or redesign in the light of your business goals, in addition to higher-level design considerations.
Functional Specifications Templates as Use Cases
You can create use cases for many kinds of items, including websites and apps. Use cases focus on the customer’s functions for the product.
By focusing on activities, use case documentation helps developers develop user-focused goods. Also, these documents often prohibit stakeholders from misinterpreting the product design. Here is a use case template to define a task in steps, sectors, and branches.
What is the Difference Between a Functional Specification Document and a Business Requirements Document?
While several document variations and permutations occur, Technical Specification Documents (FSDs) and Business Specifications Documents (BRDs) are often different.
The BRDs identify higher-level business requirements for a product. While the BRDs ignore technological specifics in favor of a detailed justification for the product.
A good view of what the product provides and why it is necessary will also help steer progress during disagreements over product direction. So, FSDs should concentrate on outlining the product’s specifications and capabilities that you need to accomplish your end goal.
How Functional Requirements Templates Relate to Other Specification Documents?
Creating a tangible or transactional product involves generating many documents. And you can use a functional specification document in the combination of the following:
Requirements
Product Requirements: Used interchangeably with a market requirement document, this document lays out the product’s intent.
User Requirements: This document details the user’s expectations of the product. Some consider the consumer requirements to be part of the functional requirement document. If this document is in place, use it throughout the development process. In Agile development, user requirements are like the cornerstone of applicable requirements.
Business Needs Assessments: This document enlists current and desired business conditions gaps.
Business Process Documents: This documents specifics a business process.
Validation Documents: These documents include a traceability matrix, test plans, and operation requirements.
Technical Design Specifications: This document describes which programming elements you require for the proposed design.
System Requirements: This document shows high-level expectations for a product or system.
Business Requirements: This requirement template describes the high-level details for creating an update or product.
User Stories: This document helps in Agile development. Also, it conveys the product’s intent by stating in detail how a user will do with it.
Use Cases: This document gives the context of features from a user perspective and functional details.
What is a Functional Requirements Example?
Typically, FRDs include the following elements:
1. Who is the product for?
2. Who is allowed to make use of the product?
3. Inputs to the framework.
4. What each screen is meant to do.
5. System workflows.
6. Outputs.
7. Regulatory requirements by the product.
8. Specific business requirements of the product.
How to Choose or Create Functional Specifications Templates
Well, it is essential to write a description of the desired product in the product development phase. But, the document of the functional requirement template should also manage by your team.
When developing a functional specification template, ask everyone with an assigned interest in the product’s outcome what they need in the template. Each template format has its advantages and disadvantages as well. Here are a few things to consider while creating functional specifications templates pdf:
Use “Shall” Statements: Common functional specifications tend to neglect context and are more open to the developer’s subject.
Use Cases: present meaning and description, but the devil can be in that exact detail—the scope can change as actual user needs become apparent. More minor requirements can be lost in the usage cases.
User Stories: Give the benefit of defining user needs in business specifications. However, they can demand extra effort.
What to Include in a Functional Requirements Template
While certain specifications are necessary to express your product’s purpose, others may or may not benefit from the production of your product. The format you choose will also be driven by what you’re creating. Here is a list that you can use as a reference when planning the functional requirements:
Stakeholders
In this section, you’ll put down the names and job descriptions of everyone participating in the project.
Approvals
In this category, you’ll have all the features given before by the client and other stakeholders or the product manager.
Project and Scope
The project’s scope will include an abstract of the feature specifications and requirements that will meet those requirements, in simple terms: the problems and the solutions.
Risks and Assumptions
You’ll talk about any risks that your project faces regarding technicalities, time, and money; the risks and assumptions part is anything that can impact the product’s functional design.
Use Cases
A user case or use case is a summary of the situation that the user finds themselves in, or that is the problem they have and how your product facilitates them to solve it. You can break a use case down more into user scenarios, and user flows explain each stage using a feature by using diagrams.
Requirements Specs
This section will specify your product’s requirements to help the user solve business objectives. For example, the features it needs to have.
Solution Overview
This section will include anything you aim to create to solve a problem. For example, sitemaps, user flows, etc.
System Configurations
Here you’ll detail out the steps needed to configure the future product. For example, we will describe what is required to create a user account.
Non-functional Specs
Nonfunctional specs will feature the general characteristics of a system. This section defines the product’s usability, appearance, learning curve, level of intuitiveness, and how long it will take to end specific tasks with it.
Exception Handling and Error Reporting
Here you will indicate how the product will handle errors or bugs from the users’ input. It will also act when the user makes a “mistake” rather than merely boarding on an alternative flow.
Ticketing System Requirement
This section will describe how you will do ticketing to handle any bugs or issues during the development process and even afterward.
Include in Functional Requirements Template
Tools for Developing and Managing Functional Requirements Document Templates
Again, when deciding what method to use to build a software requirement document, the company’s interests are paramount. What is working with other businesses might not work for you.
Agile Project Management Platform
Many purpose-built platforms offer functionality for catching requirement or feature tracking development and user story details.
Documentation Management
This provides one of the simplest and most popular tools to build render documents. Many functional specifications templates and documents are available as templates for documents.
Spreadsheet Software
This Spreadsheets software allows you to add columns as you want. Also, they eliminate the pressure to make perfect sentences because you only need to capture the necessary details that a reader needs to build the right product.
The Takeaway
Best practice tells us that creating functional specifications templates would save you time, effort, and working relationships. The functional specification documents keep all team players on the same page, operating from a single source of truth.
Deviating from this will lead to a bad project and upset individuals. But it’s best to build a well-designed functional specification document for the sake of everyone’s stress levels!
Project Management 100 Templates Bundle Ad
Frequently Asked Questions
How do you write a functional specification?
Typically, a functional specification needs to include: Project scope, deliverables, the goals, tasks, features, costs, and deadlines of the project.
What should functional specifications templates or document contain?
A functional specification (Depending on the project and the team) include: Project scope, deliverables, the goals, features, tasks, costs, and targets of the project
How do I create an FSD document?
Here’s a list of creating a valid FSD document:
• Product managers should certify that all requirements are seized, and all business rules are correct.
• Designers should identify the user interface and interactions.
• QA should be able to get enough information in the FSD to reflect the changes in tests.
What are some examples of functional requirements?
Some typical functional requirements include:
• Business Rules.
• Audit Tracking.
• Transaction corrections, cancellations, and adjustments.
• Authentication.
• Administrative functions.
• Authorization levels.
• External Interfaces.
• Certification Needs.
What is a functional design specification document?
A Functional Design Specification document, also is known as FDS, is a document that defines how a control system or process will operate. Also, it explains how the proposed system will work, how people will cooperate with it, and what to assume when different operational scenarios arise.
Subscribe to get the Pack of 50 Templates for FREE | __label__pos | 0.823384 |
1. Not finding help here? Sign up for a free 30min tutor trial with Chegg Tutors
Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!
One sided limits
1. Nov 9, 2005 #1
Hi people,
could anyone tell me how to prove that the limit as f(x) approaches a from above equals the limit as f(x) approaches a from below? I can't see how to approach this proof, thx
Jack
2. jcsd
3. Nov 9, 2005 #2
mathman
User Avatar
Science Advisor
Gold Member
The question as you stated it is too vague. In any case if f(x) is discontinuous, it just won't be true.
4. Nov 9, 2005 #3
Unless you have some sort of piecewise function, I see this as fairly straightfoward. If
(1) [tex]\lim_{x\rightarrow{a+}}f(x)=f(a)=\lim_{x\rightarrow{a-}}f(x)[/tex],
then f(x) is continuous at x=a. What is your proof concerning? Continuity, delta-epsilon proofs?
5. Nov 9, 2005 #4
i'm guessing it's the epsilon-delta stuff.
6. Nov 10, 2005 #5
That condition is not accurate, consider this function:
[tex]f(x) = \frac{x^2-1}{x-1}[/tex]
The limit above and below f(1) is equal to 2 though it is undefined at that point.
7. Nov 10, 2005 #6
It's obvious that Jameson meant for f(a) (a = 1 in this case) to exist, seeing as he mentioned that something should be equal to it, and in that case, the condition is accurate.
8. Nov 13, 2005 #7
I know what he means. He is talking about a function between points (a,f(a)) and (b,f(b)) and he wants to know how to prove the limit at x=a or x=b
From what I remember in Chapter 2, Calculus AB all you need to do is see limit as x->a or b->b from the existent side, and then plug in the value into the function. If it's the same, it's continuous. If it's not, no continuity.
It's like the following:
limit as x->a of f(x)=b
and f(a)=b
makes a function continuous at point (a,f(a))
right? It's been a good few months.
9. Nov 13, 2005 #8
Yes, I was stating the conditions for a function being continuous at the point a. However, I was not saying continuity is necessary for a limit to exist. Sorry if I was unclear.
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook
Similar Discussions: One sided limits
1. One sided limit (Replies: 2)
2. One-sided limits (Replies: 1)
Loading... | __label__pos | 0.934552 |
Take the tour ×
Stack Overflow is a question and answer site for professional and enthusiast programmers. It's 100% free, no registration required.
when i try to get JSON from http://api-v3.deezer.com/1.0/search/album/?q=beethoven&index=2&nb_items=2&output=json with:
(jQuery 1.6.2)
$.ajax({
type: "GET",
url: url,
dataType: "jsonp",
success: function (result) {
alert("SUCCESS!!!");
},
error: function (xhr, ajaxOptions, thrownError) {
alert(xhr.statusText);
alert(xhr.responseText);
alert(xhr.status);
alert(thrownError);
}
});
I get: parsererror; 200; undefined; jquery162******************** was not called
but with the JSON from http://search.twitter.com/search.json?q=beethoven&callback=?&count=5 works fine. Both are valid JSON formats. So what is this error about?
[UPDATE]
@3ngima, i have implemented this in asp.net, it works fine:
$.ajax({
type: "POST",
url: "WebService.asmx/GetTestData",
data: "{}",
contentType: "application/json; charset=utf-8",
dataType: "json",
success: function (result) {
alert(result.d);
}
});
WebService.asmx:
[WebMethod]
public string GetTestData()
{
try
{
var req = System.Net.HttpWebRequest.Create("http://api-v3.deezer.com/1.0/search/album/?q=beethoven&index=2&nb_items=2&output=json");
using (var resp = req.GetResponse())
using (var stream = resp.GetResponseStream())
using (var reader = new System.IO.StreamReader(stream))
return reader.ReadToEnd();
}
catch (Exception) { return null; }
}
share|improve this question
add comment
3 Answers
up vote 21 down vote accepted
It's because you're telling jQuery that you're expecting JSON-P, not JSON, back. But the return is JSON. JSON-P is horribly mis-named, named in a way that causes no end of confusion. It's a convention for conveying data to a function via a script tag. In contrast, JSON is a data format.
Example of JSON:
{"foo": "bar"}
Example of JSON-P:
yourCallback({"foo": "bar"});
JSON-P works because JSON is a subset of JavaScript literal notation. JSON-P is nothing more than a promise that if you tell the service you're calling what function name to call back (usually by putting a callback parameter in the request), the response will be in the form of functionname(data), where data will be "JSON" (or more usually, a JavaScript literal, which may not be the quite the same thing). You're meant to use a JSON-P URL in a script tag's src (which jQuery does for you), to get around the Same Origin Policy which prevents ajax requests from requesting data from origins other than the document they originate in (unless the server supports CORS and your browser does as well).
share|improve this answer
1
Btw it seems this API does not support JSON-P (I only found this: deezer.com/en/developers/simpleapi). – Felix Kling Jul 10 '11 at 21:54
Oh, i see. hmmm, if i put the datatype to json it doenst work too. – Stack Stack Jul 10 '11 at 23:00
@Stack: It wouldn't do, unless the page you're calling it from is on api-v3.deezer.com, because of the SOP (see link in answer). – T.J. Crowder Jul 10 '11 at 23:01
Oh, I see. I understand now. Thank you. – Stack Stack Jul 10 '11 at 23:13
add comment
in case the server does not support the cross domain request you can:
1. create a server side proxy
2. do ajax request to your proxy which in turn will get json from the service, and
3. return the response and then you can manipulate it ...
in php you can do it like this
proxy.php contains the following code
<?php
if(isset($_POST['geturl']) and !empty($_POST['geturl'])) {
$data = file_get_contents($_POST['geturl']);
print $data;
}
?>
and you do the ajax request to you proxy like this
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.6.1/jquery.min.js" type="text/javascript"></script>
<script type="text/javascript">
$(function(){
$("#btn").click(function(){
alert("abt to do ajax");
$.ajax({
url:'proxy.php',
type:"POST",
data:{geturl:'http://api-v3.deezer.com/1.0/search/album/?q=beethoven&index=2&nb_items=2&output=json'},
success:function(data){
alert("success");
alert(data);
}
});
});
});
</script>
tried and tested i get the json response back...
share|improve this answer
add comment
At last i have found the solution. First of all, the webmethods in a webservice or page doesn't work for me, it always returns xml, in local works fine but in a service provider like godaddy it doesn't.
My solution was to create an .ahsx, a handler in .net and wrap the content with the jquery callback function that pass the jsonp, and it works .
[System.Web.Script.Services.ScriptService]
public class HandlerExterno : IHttpHandler
{
string respuesta = string.Empty;
public void ProcessRequest ( HttpContext context )
{
string calls= context.Request.QueryString["callback"].ToString();
respuesta = ObtenerRespuesta();
context.Response.ContentType = "application/json; charset=utf-8";
context.Response.Write( calls +"("+ respuesta +")");
}
public bool IsReusable
{
get
{
return false;
}
}
[System.Web.Services.WebMethod]
private string ObtenerRespuesta ()
{
System.Web.Script.Serialization.JavaScriptSerializer j = new System.Web.Script.Serialization.JavaScriptSerializer();
Employee[] e = new Employee[2];
e[0] = new Employee();
e[0].Name = "Ajay Singh";
e[0].Company = "Birlasoft Ltd.";
e[0].Address = "LosAngeles California";
e[0].Phone = "1204675";
e[0].Country = "US";
e[1] = new Employee();
e[1].Name = "Ajay Singh";
e[1].Company = "Birlasoft Ltd.";
e[1].Address = "D-195 Sector Noida";
e[1].Phone = "1204675";
e[1].Country = "India";
respuesta = j.Serialize(e).ToString();
return respuesta;
}
}//class
public class Employee
{
public string Name
{
get;
set;
}
public string Company
{
get;
set;
}
public string Address
{
get;
set;
}
public string Phone
{
get;
set;
}
public string Country
{
get;
set;
}
}
And here is the call with jquery:
$(document).ready(function () {
$.ajax({
// url: "http://www.wookmark.com/api/json",
url: 'http://www.gjgsoftware.com/handlerexterno.ashx',
dataType: "jsonp",
success: function (data) {
alert(data[0].Name);
},
error: function (data, status, errorThrown) {
$('p').html(status + ">> " + errorThrown);
}
});
});
and works perfectly
Gabriel
share|improve this answer
add comment
Your Answer
discard
By posting your answer, you agree to the privacy policy and terms of service.
Not the answer you're looking for? Browse other questions tagged or ask your own question. | __label__pos | 0.931127 |
Martik Martik - 1 year ago 97
C++ Question
Math in a NodeRed function block
I am trying to do a math function in a function-block in NodeRed(c++) but it can only handle easier task like multiply.
I am trying to do this function but it can't handle the exponents(^). Perhaps there is a math function or something to declare this? It just returns a wacko number as it is now.
msg.payload = (6*10^47)/(msg.payload^16.66);
return msg;
Answer Source
The ^ operator doesn't do what you think it does, it's the bitwise XOR operator.
If you want to raise something to the power of x use pow:
#include <cmath>
std::pow(msg.payload, 16.66); | __label__pos | 0.989118 |
Gramps 4.0 Wiki Manual - Manage Family Trees: CSV Import and Export
From Gramps
Jump to: navigation, search
Gnome-important.png Special copyright notice: All edits to this page need to be under two different copyright licenses:
These licenses allow the Gramps project to maximally use this wiki manual as free content in future Gramps versions. If you do not agree with this dual license, then do not edit this page. You may only link to other pages within the wiki which fall only under the GFDL license via external links (using the syntax: [https://www.gramps-project.org/...]), not via internal links.
Also, only use the known conventions
Previous Index Next
Gramps Spreadsheet Import/Export
This format allows you to import/export a spreadsheet of data all at once. The spreadsheet must be in the Comma Separated Value (CSV) format. Most spreadsheet programs can read and write this format. It is also easy to write by hand. This is the only Gramps import format which allows for merging with existing data.
Gnome-important.png
This spreadsheet format does not allow for 100% export of Gramps data.
It only exports (and imports) a subset of data, namely: people (names and gender), birth, baptism, death, and burial dates/places/sources, marriages (dates/places/sources) and relationships (parents and children). Notes are not exported, but new notes are appended onto the end of existing notes.
New for Gramps 3.3: Previously, sources were not exported, but now they are. Sources are referred to by their title text. You can add further details to a source after importing.
There are three main uses for this format:
1. You can export your core gramps data into a spreadsheet format, edit it with a text or spreadsheet program, and import the changes and additions back into gramps. This is handy for sending to others to fill in, or for taking on the road when you don't have your full gramps application.
2. You can import new data into your gramps database. For example, if you have a set of new people to add to your database, but don't want to hunt and peck your way to finding where they go, you might find it easier to type them into a spreadsheet, and then quickly bring all of them in at once. This is handy if you have a large amount of data that you are cutting and pasting from another application or the web. An example of this is restoring your Gramps database by loading the Narrative Website into a spreadsheet.
3. You can also import a set of corrections and additions. Say that you have printed out a report, and you are going through it marking corrections. If you make each correction a section of a spreadsheet, you can "script the edits" and then execute them all at once.
Export
To export your database:
1. Start gramps
2. Select "Export" from the Family Trees menu
3. Select "Comma Separated Values Spreadsheet (CSV)"
A selected set of fields of your genealogy data will be saved to a .csv file in the format described below. In addition, the people and familes are referenced so that the data can be edited and read back in, thereby updating the database.
There are some columns that will be blank, specifically note and source columns. These are listed in the spreadsheet so that you can make notes for the import, but notes are never exported with this tool. Gramps 3.3 now exports source titles; previously no source data was exported.
Your data is broken up into three sections representing individuals, marriages, and children. The exported fields and column names are:
Individuals
Person, Lastname, Firstname, Callname, Suffix, Prefix, Title, Gender, Birthdate, Birthplace, Birthsource, Baptismdate, Baptismplace, Baptismsource, Deathdate, Deathplace, Deathsource, Burialdate, Burialplace, Burialsource, Noteote
Marriages
Marriage, Husband, Wife, Date, Place, Source, Note
Families
Family, Child
The first column in each area is the gramps ID. That is what will tie your edits back to the correct data, so don't alter those data. Load this file into your favorite spreadsheet using comma separated, double-quote text delimited, and Text format (any encoding for now). Then you can add or correct data, and save it back out, keeping the same format. You can then import the data back ontop of your old data and it will be corrected.
Gramps-notes.png
Open/Libre Office allows you to turn off autoformatting when you open the CSV file.
If you don't do this, Open/Libre Office may interpret the dates incorrectly. Change the type of the column to Text rather than Standard. If your spreadsheet program doesn't allow you to format the fields before you get it into columns (eg, Excel) you need to change the display format of dates in Gramps before you export. You can do this under Edit -> Preferences -> Display -> Date Format
.
Import
To import your data:
1. use the file from above, or create a spreadsheet (described below) with genealogical data
2. start up gramps
3. import the file into your current database
The merge part of this code will only add or update information to your database, and it always assume that the spreadsheet data is the correct version.
If you load this spreadsheet into Open/Libre Office, make sure you select each column as type Text rather than Standard. Standard will reformat your dates and numbers. Also, if you use Excel, you will probably want to select all cells once opened, and change the format of the cells to Text.
The spreadsheet is data made up of columns. Each column should have at the top of it the name of what type of data is in the column. You must use special names for the columns. Currently they are:
People
person - a reference to be used for families (marriages, and children)
grampsid - to assign a gramps id to the person
firstname - a person's first name
surname/lastname - a person's last name
callname - a common name (nickname) for the person
prefix - surname prefix (von, de, etc)
suffix - a suffix of a person's name (Jr., Sr.)
title - a person's title (Dr., Mr.)
gender - male or female (you should use the translation for your language)
note - a note for the person's record
birthdate - date of birth
birthplace - place of birth
birthsource - source title for birth
baptismdate - date of baptism
baptismplace - place of baptism
baptismsource - source title of baptism
grampsid - give a particular gramps id
deathdate - date of death
deathplace - place of death
deathsource - source title for death
deathcause - cause of death
burialdate - date of burial
burialplace - place of burial
burialsource - source title of baptism
Marriage
marriage - if you want to reference this from a family, you'll need a matching name here
husband/father/parent1 - the reference of the person above who is the husband
(for female parent1, you'll need to put gender in the person area,
or edit it later in gramps)
wife/mother/parent2 - the reference of the person above who is the wife
(for male parent2, you'll need to put gender in the person area,
or edit it later in gramps)
date - the date of the marriage
place - the place of the marriage
source - source title of the marriage
note - a note about the marriage/wedding
Family
family - a reference to tie this to a marriage above (required)
child - the reference of the person above who is a child
source - source title of the marriage
note - a note about the family
gender - male or female (you should use the translation for your language)
[You can put gender here, or in person above]
Details
Case doesn't matter. Notice that the names don't use underscores in them. You may use any combination of these, in any order. (Actually, you have to at least have a surname and a given name when defining a person, and you have to have a marriage and child columns when defining children, but that is it.) The column names are the English names given (for now) but the data should be in your language (including the words "male" and "female").
Each of these can go in its own area in a spreadsheet. There is no limit to the number of areas in a sheet, and each area can have any number of rows. Leave a blank row between "areas". Just make sure that areas are not next to each other; they must be above and below one another.
You can have mutiple areas of each kind on a spreadsheet. The only limitation is that if you refer to a person, you must do that in a row lower than where that person is described. Likewise, if you refer to a marriage, you must do that in a row lower than where the marriage is described.
If you are entering the data in a text file, and if you wish to have a comma inside one of the values, like "Clinton, Co., MO" then you need place the entire value in double-quotes and put the first double-quote right after the preceding comma. For example:
marriage, person1, person2, place
m1, p1, p2,"Clinton, Co., MO"
m2, p3, p4,"Havertown, PA"
A spreadsheet program will do this automatically for you.
Here is an example spreadsheet in Open/Libre Office, but any spreadsheet program should work.
Fig. 5.1.1
Notice that the data need not begin in the first column, nor in the first row.
And here is the resulting data in gramps:
Fig. 5.1.2
Here is an example of a CSV text spreadsheet with multiple areas:
Firstname, Surname, Birthdate
John, Tester, 11/11/1965
Sally, Tester, 01/26/1973
Person, Firstname, Surname
p1, Tom, Smith
p2, Mary, Jones
p3, Jonnie, Smith
p5, James, Loucher
p6, Penny, Armbruster
p7, Tim, Sparklet
Marriage, Husband, Wife
m1, p1, p2
m2, p5, p6
Family, Child
m1, p3
m1, p6
m2, p7
If you cut and paste that into a file, you can import it directly.
If you make your references be gramps IDs inside square brackets, then you can refer to people already in the database, like this:
Person, Firstname, Lastname
joe's boy, Harry, Smith
Family, Child
[F1524], joe's boy
Husband, Wife
[I0123], [I0562]
firstname, surname
Timothy, Jones
This example would create and add Harry Smith to the previously existing family in gramps, family F1524.
Also, this example would marry two previously existing people, I0123, and I0562.
Finally, this also creates a person named Timothy Jones who is not related to anyone.
Real world example
Fig. 5.1.3
In this example, I had an entire generation to enter, 16 names with marriage dates. The children I already had in the database. I entered them into Open/Libre Office:
Notice that you can use numbers or strings as the reference names between areas. In the person area, I used the numbers 1 through 16. That made it easy to refer to them in the second area of marriages. The marriages are labeled with the letters A through H.
Hint
Open/Libre Office allows you to turn off autoformatting when you open the CSV file. If you don't do this, Open/Libre Office may interpret the dates incorrectly. Change the type of the column to Text rather than Standard. If your spreadsheet program doesn't allow you to format the fields before you get it into columns (eg, Excel) you need to change the display format of dates in gramps before you export. You can do this under Edit -> Preferences -> Display -> Date Format.
Also note that the children in the third area are existing people as indicated by the brackets around the gramps IDs.
Saving as CSV and importing into gramps produces the far right-hand column in the tree:
Fig. 5.1.4 Saving as CSV and importing into gramps produces the far right-hand column in the tree.
Previous Index Next | __label__pos | 0.587388 |
=pod =head1 NAME SM2 - Chinese SM2 signature and encryption algorithm support =head1 DESCRIPTION The B algorithm was first defined by the Chinese national standard GM/T 0003-2012 and was later standardized by ISO as ISO/IEC 14888. B is actually an elliptic curve based algorithm. The current implementation in OpenSSL supports both signature and encryption schemes via the EVP interface. When doing the B signature algorithm, it requires a distinguishing identifier to form the message prefix which is hashed before the real message is hashed. =head1 NOTES B signatures can be generated by using the 'DigestSign' series of APIs, for instance, EVP_DigestSignInit(), EVP_DigestSignUpdate() and EVP_DigestSignFinal(). Ditto for the verification process by calling the 'DigestVerify' series of APIs. There are several special steps that need to be done before computing an B signature. The B structure will default to using ECDSA for signatures when it is created. It should be set to B by calling: EVP_PKEY_set_alias_type(pkey, EVP_PKEY_SM2); Then an ID should be set by calling: EVP_PKEY_CTX_set1_id(pctx, id, id_len); When calling the EVP_DigestSignInit() or EVP_DigestVerifyInit() functions, a pre-allocated B should be assigned to the B. This is done by calling: EVP_MD_CTX_set_pkey_ctx(mctx, pctx); And normally there is no need to pass a B parameter to EVP_DigestSignInit() or EVP_DigestVerifyInit() in such a scenario. =head1 EXAMPLES This example demonstrates the calling sequence for using an B to verify a message with the SM2 signature algorithm and the SM3 hash algorithm: #include /* obtain an EVP_PKEY using whatever methods... */ EVP_PKEY_set_alias_type(pkey, EVP_PKEY_SM2); mctx = EVP_MD_CTX_new(); pctx = EVP_PKEY_CTX_new(pkey, NULL); EVP_PKEY_CTX_set1_id(pctx, id, id_len); EVP_MD_CTX_set_pkey_ctx(mctx, pctx);; EVP_DigestVerifyInit(mctx, NULL, EVP_sm3(), NULL, pkey); EVP_DigestVerifyUpdate(mctx, msg, msg_len); EVP_DigestVerifyFinal(mctx, sig, sig_len) =head1 SEE ALSO L, L, L, L, L, L =head1 COPYRIGHT Copyright 2018-2019 The OpenSSL Project Authors. All Rights Reserved. Licensed under the OpenSSL license (the "License"). You may not use this file except in compliance with the License. You can obtain a copy in the file LICENSE in the source distribution or at L. =cut | __label__pos | 0.807372 |
[Free] 2018(Mar) EnsurePass Testinsides CompTIA SY0-401 Dumps with VCE and PDF 1021-1030
Ensurepass.com : Ensure you pass the IT Exams
2018 Mar CompTIA Official New Released SY0-401
100% Free Download! 100% Pass Guaranteed!
http://www.EnsurePass.com/SY0-401.html
CompTIA Security Certification
Question No: 1021 – (Topic 6)
An administrator needs to submit a new CSR to a CA. Which of the following is a valid FIRST step?
1. Generate a new private key based on AES.
2. Generate a new public key based on RSA.
3. Generate a new public key based on AES.
4. Generate a new private key based on RSA.
Answer: D Explanation:
Before creating a CSR, the applicant first generates a key pair, keeping the private key secret. The private key is needed to produce, but it is not part of, the CSR.
The private key is an RSA key. The private encryption key that will be used to protect sensitive information.
Note: A CSR or Certificate Signing request is a block of encrypted text that is generated on the server that the certificate will be used on. It contains information that will be included in your certificate such as your organization name, common name (domain name), locality, and country. It also contains the public key that will be included in your certificate. A private key is usually created at the same time that you create the CSR.
Question No: 1022 – (Topic 6)
Which of the following components MUST be trusted by all parties in PKI?
1. Key escrow
2. CA
3. Private key
4. Recovery key
Answer: B Explanation:
A certificate authority (CA) is an organization that is responsible for issuing, revoking, and
distributing certificates. In a simple trust model all parties must trust the CA. In a more complicated trust model all parties must trust the Root CA.
Question No: 1023 – (Topic 6)
Users report that after downloading several applications, their systems’ performance has noticeably decreased. Which of the following would be used to validate programs prior to installing them?
1. Whole disk encryption
2. SSH
3. Telnet
4. MD5
Answer: D Explanation:
MD5 can be used to locate the data which has changed.
The Message Digest Algorithm (MD) creates a hash value and uses a one-way hash. The hash value is used to help maintain integrity. There are several versions of MD; the most common are MD5, MD4, and MD2.
Question No: 1024 – (Topic 6)
Which of the following is true about an email that was signed by User A and sent to User B?
1. User A signed with User B’s private key and User B verified with their own public key.
2. User A signed with their own private key and User B verified with User A’s public key.
3. User A signed with User B’s public key and User B verified with their own private key.
4. User A signed with their own public key and User B verified with User A’s private key.
Answer: B Explanation:
The sender uses his private key, in this case User A#39;s private key, to create a digital signature. The message is, in effect, signed with the private key. The sender then sends the message to the receiver. The receiver (User B) uses the public key attached to the
message to validate the digital signature. If the values match, the receiver knows the message is authentic.
The receiver uses a key provided by the sender-the public key-to decrypt the message.
Question No: 1025 – (Topic 6)
Which of the following is used to verify data integrity?
1. SHA
2. 3DES
3. AES
4. RSA
Answer: A Explanation:
SHA stands for quot;secure hash algorithmquot;. SHA-1 is the most widely used of the existing SHA hash functions, and is employed in several widely used applications and protocols including TLS and SSL, PGP, SSH, S/MIME, and IPsec. It is used to ensure data integrity.
Note:
A hash value (or simply hash), also called a message digest, is a number generated from a string of text. The hash is substantially smaller than the text itself, and is generated by a formula in such a way that it is extremely unlikely that some other text will produce the same hash value.
Hashes play a role in security systems where they#39;re used to ensure that transmitted messages have not been tampered with. The sender generates a hash of the message, encrypts it, and sends it with the message itself. The recipient then decrypts both the message and the hash, produces another hash from the received message, and compares the two hashes. If they#39;re the same, there is a very high probability that the message was transmitted intact. This is how hashing is used to ensure data integrity.
Question No: 1026 – (Topic 6)
A CRL is comprised of.
1. Malicious IP addresses.
2. Trusted CA’s.
3. Untrusted private keys.
4. Public keys.
Answer: D Explanation:
A certificate revocation list (CRL) is created and distributed to all CAs to revoke a certificate or key.
By checking the CRL you can check if a particular certificate has been revoked. The certificates for which a CRL should be maintained are often X.509/public key certificates, as this format is commonly used by PKI schemes.
Question No: 1027 – (Topic 6)
When employees that use certificates leave the company they should be added to which of the following?
1. PKI
2. CA
3. CRL
4. TKIP
Answer: C Explanation:
The certificates of the leaving employees must be made unusable. This is done by revoking them. The revoke certificates end up in the CRL.
Note: The CRL (Certificate revocation list) is exactly what its name implies: a list of subscribers paired with digital certificate status. The list enumerates revoked certificates along with the reason(s) for revocation. The dates of certificate issue, and the entities that issued them, are also included. In addition, each list contains a proposed date for the next release.
Question No: 1028 – (Topic 6)
A security administrator must implement a secure key exchange protocol that will allow
company clients to autonomously exchange symmetric encryption keys over an unencrypted channel. Which of the following MUST be implemented?
1. SHA-256
2. AES
3. Diffie-Hellman
4. 3DES
Answer: C Explanation:
Diffie-Hellman key exchange (D-H) is a means of securely generating symmetric encryption keys across an insecure medium.
Question No: 1029 – (Topic 6)
A new client application developer wants to ensure that the encrypted passwords that are stored in their database are secure from cracking attempts. To implement this, the developer implements a function on the client application that hashes passwords thousands of times prior to being sent to the database. Which of the following did the developer MOST likely implement?
1. RIPEMD
2. PBKDF2
3. HMAC
4. ECDHE
Answer: B Explanation:
Password-Based Key Derivation Function 2 (PBKDF2) makes use of a hashing operation, an encryption cipher function, or an HMAC operation) on the input password, which is combined with a salt and is repeated thousands of times.
Question No: 1030 – (Topic 6)
Which of the following should a security technician implement to identify untrusted certificates?
1. CA
2. PKI
3. CRL
4. Recovery agent
Answer: C Explanation:
Untrusted certificates and keys are revoked and put into the CRL.
Note: The CRL (Certificate revocation list) is exactly what its name implies: a list of subscribers paired with digital certificate status. The list enumerates revoked certificates along with the reason(s) for revocation. The dates of certificate issue, and the entities that issued them, are also included.
100% Ensurepass Free Download!
Download Free Demo:SY0-401 Demo PDF
100% Ensurepass Free Guaranteed!
Download 2018 EnsurePass SY0-401 Full Exam PDF and VCE
EnsurePass ExamCollection Testking
Lowest Price Guarantee Yes No No
Up-to-Dated Yes No No
Real Questions Yes No No
Explanation Yes No No
PDF VCE Yes No No
Free VCE Simulator Yes No No
Instant Download Yes No No
You must be logged in to post a comment.
Proudly powered by WordPress Premium Style Theme by www.gopiplus.com | __label__pos | 0.997588 |
Network Security - securing network infrastructure and connections
learn more… | top users | synonyms
14
votes
1answer
798 views
Are there any security problems with Google false start for TLS?
Google recently announced false start in Chrome browsers which increased TLS performance by 30% http://news.softpedia.com/news/Google-Chrome-s-SSL-False-Start-201253.shtml I know TLS has been poked ...
14
votes
1answer
7k views
Is SOCKS secure?
In order to create a VPN, I open an SSH tunnel with a command like ssh -D 9000 user@host, and then I set my system's proxy settings to use SOCKS5 through localhost:9000. Well, setting up my home ...
14
votes
3answers
18k views
How do I ensure data encryption on Samba transmission on *NIX systems?
I have a heterogeneous system (both MS and *nix) that communicates with CIFS/SMB. How can I ensure proper data encryption at the application layer?
14
votes
2answers
4k views
Is IP spoofing relevant to TCP? Is it relevant for TLS or SSH?
I have read the TCP Connection Establishment on Wikipedia In brief the packets to start are SYN, with a (hopefully) random sequence number A from the client. SYN-ACK, responding, with A+1 and (...
13
votes
8answers
2k views
Randomizing MAC addresses on bootup
Since it is possible to set custom MAC addresses, wouldn't it make sense to have a new one as often as possible/convenient (i.e. on bootup)? It would seem that is useful to both attacker and victim (...
13
votes
2answers
3k views
Is this a secure data exchange scheme for a game?
I am writing a multiplayer game. I have a central server which processes everything. For data exchange I use HTTPS protocol. Because this is a game I cannot use computationally expensive systems like ...
13
votes
4answers
30k views
Tips for a secure iptables config to defend from attacks. (client side!)
Own examples: ############### # KERNEL PARAMETER CONFIGURATION # PREVENT YOU SYSTEM FROM ANSWERING ICMP ECHO REQUESTS echo 1 > /proc/sys/net/ipv4/icmp_echo_ignore_all # DROP ICMP ECHO-REQUEST ...
13
votes
4answers
14k views
Security measures against packet sniffing
I work in a environment where packet sniffing can be easily done . I was worried about my confidential data . Please suggest how is it done and precaution which i can take at client level.
13
votes
3answers
23k views
How can I detect if someone is sniffing network packets on the LAN?
I would like to know if there is a product or software that can detect if there is a sniffer currently on the network? In other words is it possible at all to detect if there is a network card on ...
13
votes
3answers
1k views
Should a hostname ever be considered a secret?
I've been told in the past that you should never give out the host names of computers on your network. I can't think of any reason why this would be the case. Could someone tell me if they should be ...
13
votes
7answers
3k views
Egress filtering on an office network?
With an office network most companies will use ingress filtering to add a level of security, however few take advantage of egress filtering to protect their networks. The use of egress filtering will ...
13
votes
3answers
2k views
Is a predictable MAC address a risk?
If you knew from the public internet that a certain IP address belonged to a machine with a certain MAC address, can you see any security exposure associated with that? I know that some software will ...
13
votes
2answers
14k views
Is it possible to use the aircrack-ng tool to crack a WPA2 Enterprise network?
is this tool (aircrack-ng) capable of cracking into a WPA/WPA2 Enterprise network? This tool has major success cracking the passwords of WEP/WPA networks. If it can, how, but if not, is there another ...
13
votes
3answers
1k views
Are there valid reasons for spoofing an address?
This is a corollary to the question Why don't ISPs filter on source address to prevent spoofing?. Are there valid reasons to spoof an address?
13
votes
1answer
826 views
Kaspersky Antivirus “secure connection scan” as broken as Superfish?
I've read a lot about Superfish (and similar ad-ware) lately and I basically understand the vulnerability to MITM attacks. But I'm actually wondering if the "secure connection scan" by Kaspersky ...
13
votes
2answers
762 views
How does the Copyright Alert System work? Who has implemented it?
Some ISPs are participating in a Copyright Alert System that notifies content authors of violations of their copyright. I'm concerned how this oversight relates to my private traffic, and what laws ...
13
votes
1answer
2k views
What's are the advantages of L2TP/IPSEC over plain IPSEC?
As the title says, my firewall (Sonicwall) can do either IPSEC or L2TP/IPSEC for VPN connections. One advantage of L2TP/IPSEC I can see is that the client computer get allocated its own IP address on ...
12
votes
7answers
576 views
UNIX Servers: Possible intrusions or attacks that do not use any of the open listen sockets
What type of attacks are there that do not use open TCP or open UDP ports? Is it safe to assume that no open ports means no remote access? (Excluding the possibility that there is a badware already ...
12
votes
5answers
585 views
How can citizens prevent government-led Internet blackouts?
The United Nations now considers Internet access a basic human right. [PDF] Despite the questionable effectiveness of Internet blackouts in silencing a populace and preventing uprisings1, it's ...
12
votes
6answers
5k views
How can mini-computers (like Raspberry Pi) be applied to IT security?
It's no secret that thousands of $35 Raspberry Pi (Model B) computers have just shipped to people around the world. With these, and other similar types of computers becoming cheaper and more available,...
12
votes
4answers
6k views
Is NTP vulnerable to DNS poisoning or spoofing attacks?
Scenario: Attacker somehow compromises the DNS lookup for the NTP server used by the victim (a web application) Victim sends DNS request for e.g. ntp.pool.org, which is responded to by attacker to ...
12
votes
5answers
19k views
Can Skype chat be protected from snooping? Are there safe alternatives?
I use Skype a lot. With all of my clients, staff, contractors and friends, however, the acquisition by Microsoft worries me, as two of my clients are direct MS competitors, and I often work on long ...
12
votes
5answers
2k views
Powerful security tools to use in penetration testing
I want to ask you about some good security tools you've used or heard about, please let us know the ability in every tool and the difficulty to use it and which is the best situation to use this tool ....
12
votes
3answers
438 views
Verifying server software integrity?
I'm trying to brainstorm a security scheme for the problem of verifying server software integrity. The domain of this problem is Game Servers built on Valve's Source Dedicated Servers. These servers ...
12
votes
4answers
2k views
Why don't ISPs filter on source address to prevent spoofing?
I'm under the impression that if all the ISPs were required to filter on the source IP address of all outbound packets, that spoofing would be reduced considerably. Are any ISPs implementing this ...
12
votes
2answers
904 views
What is a “pre-play” attack?
I understand what a replay attack is, but I keep reading about a pre-play attack. What is it? Is it when someone intercepts an unused message and blocks the sender so they can't finish using it, and ...
12
votes
2answers
3k views
How are mobile telephony networks like LTE and HSPA encrypted?
How are mobile telephony networks like LTE (4G) and HSPA (3G) encrypted? between what parts is the communication encrypted? who has access to the keys? is symmetric or asymmetric encryption used? is ...
11
votes
5answers
3k views
Can voice chat be spied?
I wonder if voice chat (via public services like yahoo, google talk, skype, etc) is practically secure? Is it possible for the ISP or any middle point? I do not consider hacking the computers, but ...
11
votes
5answers
11k views
Can I block based on Mac Address?
Incase of dynamic IP's the hacker can work around by taking a new IP or use a Proxy, is it possible to make a ban based on Mac Address ? I want to block at the Webserver level so that unwanted users ...
11
votes
3answers
837 views
Would publishing a network diagram make the network less secure?
I have found some social networking sites that focus on sharing architecture (network maps and diagrams) and configuration. Does sharing this type of information decrease the security of my network? ...
11
votes
3answers
13k views
How to get MAC addresses of devices which are not in the network
Can I get MAC addresses of devices (mobile phones) which are near to my network but not connected to it? (Linux) I have been trying to get the MAC addresses of devices connected to my network through ...
11
votes
7answers
2k views
IP address black list
My website has a black list of IP addresses. The web application, in some way, detects all invalid, suspicious influences to it and remembers IP address and denies any requests from that IP address. ...
11
votes
3answers
1k views
What security measures should be taken when running a Linux web server out of our office?
I am interested in running our company's web server from our local office. The office makes use of file sharing and NAS devices among other common office protocols. The worst case scenarios I've ...
11
votes
7answers
5k views
What security implications are there for allowing outbound SSH traffic?
My school currently blocks outbound SSH traffic. Users inside the network cannot use Port 22, and attempting to make an SSH connection over another port is also blocked. (I'm assuming the firewall ...
11
votes
4answers
9k views
Looking for botnet IP address feeds to protect against DDoS
I would like to get a live feed of botnet IP addresses delivered from a service and block them under certain conditions. Preferably community based/open source but open to looking at worthy commercial ...
11
votes
2answers
5k views
Best way to report a foreigner attacker's ip to authorities?
I have been under attack last week and I was able to trace down the attacker and get his IP address. The attacker was located in Germany but I live out of Europe? From your experience what is the ...
11
votes
1answer
2k views
Native rsync protocol security
Is the native rsync protocol (port 873) secure? Does it encrypt data or credentials? I'm planning on using rsync to store encrypted files in the cloud, I'm wondering whatever the password is ...
11
votes
1answer
5k views
Is WPA2 WiFi protected against ARP poisoning and sniffing?
Is WPA2 WiFi protected against ARP poisoning? If not, can the ARP poisoner decrypt the packets?
11
votes
6answers
14k views
Automated tools for Cisco IOS config auditing? [closed]
Are there any automated tools for auditing config files exported from Cisco IOS devices? Free/Open Source is always nice, but anything that does the job would be of interest.
11
votes
4answers
762 views
What is the risk of a packet being sniffed when travelling over the internet without SSL/TLS?
We all know to use SSL/TLS to stop people eavesdropping on our connection, but how likely is it that an attacker will actually sniff your unencrypted password or cookie if you don't? If we exclude ...
11
votes
1answer
2k views
AWS VPC - should connections between instances be over SSL?
Say I have a few EC2 instances in an AWS VPC network, each assigned its own private address for the subnet at creation. Say one of them is a DB, and another one some kind of web app talking to the DB. ...
11
votes
3answers
2k views
What free tools or techniques exist to discover anomalies in network flows?
I have been using FlowMatrix. What do others do on the cheap?
11
votes
4answers
4k views
Is my network being sniffed?
Is there any way to find out if someone who is connected to my network is sniffing packets? There is a way with nmap if his card is in promiscuous mode but what if it is passive?
11
votes
1answer
2k views
Bypassing hidden SSID and MAC filtering “protection”
I was browsing over this question and had some follow up questions from a practical perspective. What tools will show the SSID of an AP with the SSID set to hidden or broadcasting disabled? I have ...
11
votes
1answer
912 views
How can I detect real location of the user through their IP address?
There were many ways to detect the user's IP, for instance we could get it through a single click link or through any other medium of communication where we could get the user's IP. But the tedious ...
11
votes
4answers
878 views
Wireless Activity Monitoring for PCI DSS Compliance
In an effort to be PCI DSS compliant, I took a trustkeeper.net questionnaire. I failed the question that asks: Is the presence of wireless access points tested for by using a wireless analyzer at ...
11
votes
3answers
13k views
How to best set up public WiFi without giving access to the rest of my network?
For reference, this is just for my home network. Anyway, I have quite a few of my neighbors ask me to share my internet with them. I'd really like to eliminate this "here's the password" portion ...
10
votes
4answers
4k views
How to prevent network administrators from accessing USB drive
How can I prevent network administrators from accessing, mapping to etc. a USB drive that's in a PC on their network? I'm mainly concerned about files being edited or deleted.
10
votes
3answers
14k views
How can I keep a roommate from seeing my web activity?
I have a roommate who is a network security engineer and I think he hacked our home network and now knows what sites I am visiting and what I am doing online. Although he is not stealing anything I ...
10
votes
3answers
2k views
Is it possible that authorities can't block a certain website
I was watching a very recent TV show, the FBI agent told the police that there is no way for anybody to block a live stream of a pedophile torturing a kid nor to trace it. Even when it's being ... | __label__pos | 0.886257 |
39
$\begingroup$
I am learning survival analysis from this post on UCLA IDRE and got tripped up at section 1.2.1. The tutorial says:
... if the survival times were known to be exponentially distributed, then the probability of observing a survival time ...
Why are survival times assumed to be exponentially distributed? It seems very unnatural to me.
Why not normally distributed? Say suppose we are investigating some creature's life span under certain condition (say number of days), should it be more centered around some number with some variance (say 100 days with variance 3 days)?
If we want time to be strictly positive, why not make normal distribution with higher mean and very small variance (will have almost no chance to get negative number.)?
$\endgroup$
3
• 10
$\begingroup$ Heuristically, I cannot think of the normal distribution as an intuitive way to model failure time. It's never cropped up in any of my applied work. They are always skewed very far right. I think normal distributions heuristically come about as a matter of averages, whereas survival times heuristically come about as a matter of extrema such as the effect of a constant hazard being applied to a sequence of parallel or series components. $\endgroup$
– AdamO
Commented Mar 17, 2017 at 15:43
• 6
$\begingroup$ I agree with @AdamO about the extreme distributions inherent to survival and time to failure. As others have noted, exponential assumptions have the advantage of being tractable. The biggest problem with them is the implicit assumption of a constant rate of decay. Other functional forms are possible and come as standard options depending on the software, e.g., generalized gamma. Goodness of fit tests can be employed to test differing functional forms and assumptions. The best text on survival modeling is Paul Allison's Survival Analysis Using SAS, 2nd ed. Forget SAS-it's an excellent review $\endgroup$
– user78229
Commented Mar 17, 2017 at 18:23
• 8
$\begingroup$ I would note that the very first word in your quote is "if" $\endgroup$
– Fomite
Commented Mar 17, 2017 at 19:34
10 Answers 10
43
$\begingroup$
Exponential distributions are often used to model survival times because they are the simplest distributions that can be used to characterize survival / reliability data. This is because they are memoryless, and thus the hazard function is constant w/r/t time, which makes analysis very simple. This kind of assumption may be valid, for example, for some kinds of electronic components like high-quality integrated circuits. I'm sure you can think of more examples where the effect of time on hazard can safely be assumed to be negligible.
However, you are correct to observe that this would not be an appropriate assumption to make in many cases. Normal distributions can be alright in some situations, though obviously negative survival times are meaningless. For this reason, lognormal distributions are often considered. Other common choices include Weibull, Smallest Extreme Value, Largest Extreme Value, Log-logistic, etc. A sensible choice for model would be informed by subject-area experience and probability plotting. You can also, of course, consider non-parametric modeling.
A good reference for classical parametric modeling in survival analysis is: William Q. Meeker and Luis A. Escobar (1998). Statistical Methods for Reliability Data, Wiley
$\endgroup$
3
• 1
$\begingroup$ could you elaborate more on " hazard function is constant w/r/t time"? $\endgroup$
– Haitao Du
Commented Mar 18, 2017 at 6:14
• 4
$\begingroup$ @hxd1011: Presumably by "hazard function" the author is referring to the function $r_X$ given by $r_X(t) = f_X(t) / \bar F_X(t)$, where $f_X$ is the pdf of $X$ and $\bar F_X$ is the tail of $X$ ($\bar F_X(t) = 1 - F_X(t) = \int_t^\infty f_X(x) \, dx$). This is also called the failure rate. The observation is that for $\operatorname{Exp}(\lambda)$, the failure rate is $r(t) =(\lambda e^{-\lambda t}) / (e^{-\lambda t}) = \lambda$, which is constant. Furthermore, it is not hard to show that only the exponential distribution has this property. $\endgroup$
– wchargin
Commented Mar 19, 2017 at 16:42
• $\begingroup$ by a "constant hazard rate" it is meant that always the same/similar part of a population will decay, right? $\endgroup$
– Ben
Commented Mar 31, 2022 at 14:56
23
$\begingroup$
To add a bit of mathematical intuition behind how exponents pop up in survival distributions:
The probability density of a survival variable is $f(t) = h(t)S(t)$, where $h(t)$ is the current hazard (risk for a person to "die" this day) and $S(t)$ is the probability that a person survived until $t$. $S(t)$ can be expanded as the probability that a person survived day 1, and survived day 2, ... up to day $t$. Then: $$ P(survived\ day\ t)=1-h(t)$$ $$ P(survived\ days\ 1, 2, ..., t) = (1-h(t))^t$$ With constant and small hazard $\lambda$, we can use: $$ e^{-\lambda} \approx 1-\lambda$$ to approximate $S(t)$ as simply $$ (1-\lambda)^t \approx e^{-\lambda t} $$ , and the probability density is then $$ f(t) = h(t)S(t) = \lambda e^{-\lambda t}$$
Disclaimer: this is in no way an attempt at a proper derivation of the pdf - I just figured this is a neat coincidence, and welcome any comments on why this is correct/incorrect.
EDIT: changed the approximation per advice by @SamT, see comments for discussion.
$\endgroup$
9
• 1
$\begingroup$ +1 this helped me to understand more on properties of exponential distribution. $\endgroup$
– Haitao Du
Commented Mar 17, 2017 at 16:51
• 1
$\begingroup$ Could you explain your penultimate line? It says $S(t) = ...$, so the left hand side is function of $t$; moreover, so is the right. However, the two middle terms are functions of $\lambda$ (as is the right hand side), but not functions of $t$. Moreover, the approximation $(1+x/n)^n ~ e^{x}$ only holds for $x = o(\sqrt{n})$. It's certainly not true that $\lim_{t \to \infty} (1-\lambda t/t)^t = e^{-\lambda t}$ -- it's not even approximately true for large $t$. I guess this is just a notational mistake you've made though...? $\endgroup$
– Sam OT
Commented Mar 17, 2017 at 17:50
• $\begingroup$ @SamT - thanks for the comment, edited. Coming from an applied background, I very much welcome any corrections, esp. on notation. Passing to the limit wrt $t$ was certainly not needed there, but I still believe the approximation holds for small $\lambda$, as are typically encountered in survival models. Or would you say there's something else that coincidentally makes this approximation hold? $\endgroup$
– juod
Commented Mar 17, 2017 at 20:08
• 1
$\begingroup$ Looks better now :) -- the issue is that while $\lambda$ may be small it's not true that $\lambda t$ is necessarily small; as such, you can't use the approximation $$(1+x/n)^n \approx e^x$$ (directly): it's not even "you can in applied maths but can't in pure"; it just doesn't hold at all. However, we can get around this: we do have that $\lambda$ is small, so we can get there directly, writing $$e^{-\lambda t} = \big(e^{-\lambda}\big)^t \approx \big(1-\lambda)^t.$$ Of course, $\lambda = \lambda t / t$, so we can then deduce that $$e^{-\lambda t} \approx \big(1 - \lambda t / t\big)^t.$$ $\endgroup$
– Sam OT
Commented Mar 17, 2017 at 20:14
• $\begingroup$ Being applied, you may feel this is being slightly picky, but the point is that the reasoning wasn't valid; similar invalid steps may not happen to be true. Of course, as someone applied, you may be happy to make this step, find it holds in the majority of cases and not worry about the specifics! As someone who does pure maths, this is out of the question for me, but I understand that we need both pure and applied! (And particularly in stats it's good not to get bogged down in pure technicalities.) $\endgroup$
– Sam OT
Commented Mar 17, 2017 at 20:16
13
$\begingroup$
You'll almost certainly want to look at reliability engineering and predictions for thorough analyses of survival times. Within that, there are a few distributions which get used often:
The Weibull (or "bathtub") distribution is the most complex. It accounts for three types of failure modes, which dominate at different ages: infant mortality (where defective parts break early on), induced failures (where parts break randomly throughout the life of the system), and wear out (where parts break down from use). As used, it has a PDF which looks like "\__/". For some electronics especially, you might hear about "burn in" times, which means those parts have already been operated through the "\" part of the curve, and early failures have been screened out (ideally). Unfortunately, Weibull analysis breaks down fast if your parts aren't homogeneous (including use environment!) or if you are using them at different time scales (e.g. if some parts go directly into use, and other parts go into storage first, the "random failure" rate is going to be significantly different, due to blending two measurements of time (operating hours vs. use hours).
Normal distributions are almost always wrong. Every normal distribution has negative values, no reliability distribution does. They can sometimes be a useful approximation, but the times when that's true, you're almost always looking at a log-normal anyway, so you may as well just use the right distribution. Log-normal distributions are correctly used when you have some sort of wear-out and negligible random failures, and in no other circumstances! Like the Normal distribution, they're flexible enough that you can force them to fit most data; you need to resist that urge and check that the circumstances make sense.
Finally, the exponential distribution is the real workhorse. You often don't know how old parts are (for example, when parts aren't serialized and have different times when they entered into service), so any memory-based distribution is out. Additionally, many parts have a wearout time that is so arbitrarily long that it's either completely dominated by induced failures or outside the useful time-frame of the analysis. So while it may not be as perfect a model as other distributions, it just doesn't care about things which trip them up. If you have an MTTF (population time/failure count), you have an exponential distribution. On top of that, you don't need any physical understanding of your system. You can do exponential estimates just based on observed part MTTFs (assuming a large enough sample), and they come out pretty dang close. It's also resilient to causes: if every other month, someone gets bored and plays croquet with some part until it breaks, exponential accounts for that (it rolls into the MTTF). Exponential is also simple enough that you can do back-of-the-envelope calculations for availability of redundant systems and such, which significantly increases its usefulness.
$\endgroup$
2
• 3
$\begingroup$ This is a good answer, but note that the Weibull distribution is not "the most complex" parametric distribution for survival models. I'm not sure if there could be such a thing, but certainly relative to the Weibull there is the generalized Gamma distribution, & the generalized F distribution, both of which can take the Weibull as a special case by setting parameters to 0. $\endgroup$ Commented Mar 17, 2017 at 19:49
• $\begingroup$ It's the most complex one commonly used in reliability engineering (first paragraph :) I don't disagree with your point, but I also have never seen either actually used (write-ups of how they could be used, yes. Actual implementation, no) $\endgroup$
– fectin
Commented Mar 18, 2017 at 3:55
9
$\begingroup$
Some ecology might help answer the "Why" behind this question.
The reason why exponential distribution is used for modeling survival is due to the life strategies involved in organisms living in nature. There's essentially two extremes with regard to survival strategy with some room for the middle ground.
Here's an image that illustrates what I mean (courtesy of Khan Academy):
https://www.khanacademy.org/science/biology/ecology/population-ecology/a/life-tables-survivorship-age-sex-structure
This graph plots surviving individuals on the Y axis, and "percentage of maximum life expectancy" (a.k.a. approximation of the individual's age) on the X axis.
Type I is humans, which model organisms which have an extreme level of care of their offspring ensuring very low infant mortality. Often these species have very few offspring because each one takes a large amount of the parents time and effort. The majority of what kills Type I organisms is the type of complications that arise in old age. The strategy here is high investment for high payoff in long, productive lives, if at the cost of sheer numbers.
Conversely, Type III is modeled by trees (but could also be plankton, corals, spawning fish, many types of insects, etc) where the parent invests relatively little in each offspring, but produces a ton of them in the hopes that a few will survive. The strategy here is "spray and pray" hoping that while most offspring will be destroyed relatively quickly by predators taking advantage of easy pickings, the few that survive long enough to grow will become increasingly difficult to kill, eventually becoming (practically) impossible to be eaten. All the while these individuals produce huge numbers of offspring hoping that a few will likewise survive to their own age.
Type II is a middling strategy with moderate parental investment for moderate survivability at all ages.
I had an ecology professor who put it this way:
"Type III (trees) is the 'Curve of Hope', because the longer an individual survives, the more likely it becomes that it will continue to survive. Meanwhile Type I (humans) is the 'Curve of Despair', because the longer you live, the more likely it becomes that you will die."
$\endgroup$
3
• 1
$\begingroup$ This is interesting, but note that for humans, before modern medicine (& still in some places in the world today), infant mortality is very high. Baseline human survival is often modeled with "bathtub hazard". $\endgroup$ Commented Mar 17, 2017 at 19:16
• 1
$\begingroup$ @gung Absolutely, this is a broad generalization and there are variations within humans of different regions and time periods. The main difference is clearer when you're comparing extremes, i.e. Western human families (~2.5 children per pair, most of which don't die in infancy) vs corals or spawning fish (millions of eggs released per mating cycle, most of which die due to being eaten, starvation, hazardous water chemistry, or simply failing to drift into a habitable destination) $\endgroup$ Commented Mar 17, 2017 at 19:18
• 2
$\begingroup$ While I'm all for explanations from ecology, I'll note assumptions like this are also made for things like hard drives and aircraft engines. $\endgroup$
– Fomite
Commented Mar 17, 2017 at 19:35
9
$\begingroup$
To answer your explicit question, you cannot use the normal distribution for survival because the normal distribution goes to negative infinity, and survival is strictly non-negative. Moreover, I don't think it's true that "survival times are assumed to be exponentially distributed" by anyone in reality.
When survival times are modeled parametrically (i.e., when any named distribution is invoked), the Weibull distribution is the typical starting place. Note that the Weibull has two parameters, shape and scale, and that when shape = 1, the Weibull simplifies to the exponential distribution. A way of thinking about this is that the exponential distribution the simplest possible parametric distribution for survival times, which is why it is often discussed first when survival analysis is being taught. (By analogy, consider that we often begin teaching hypothesis testing by going over the one-sample $z$-test, where we pretend to know the population SD a-priori, and then work up to the $t$-test.)
The exponential distribution assumes that the hazard is always exactly the same, no matter how long a unit has survived (consider the figure in @CaffeineConnoisseur's answer). In contrast, when the shape is $>1$ in the Weibull distribution, it implies that hazards increase the longer you survive (like the 'human curve'); and when it is $<1$, it implies hazards decrease (the 'tree').
Most commonly, survival distributions are complex and not well fit by any named distribution. People typically don't even bother trying to figure out what distribution it might be. That's what makes the Cox proportional hazards model so popular: it is semi-parametric in that the baseline hazard can be left completely unspecified but the rest of the model can be parametric in terms of its relationship to the unspecified baseline.
$\endgroup$
2
• 4
$\begingroup$ "Moreover, I don't think it's true that "survival times are assumed to be exponentially distributed" by anyone in reality." I've actually found it to be quite common in epidemiology, usually implicitly. $\endgroup$
– Fomite
Commented Mar 17, 2017 at 23:16
• 1
$\begingroup$ @gung, could you kindly explain - it is semi-parametric in that the baseline hazard can be left completely unspecified but the rest of the model can be parametric in terms of its relationship to the unspecified baseline $\endgroup$ Commented Jun 28, 2018 at 10:16
6
$\begingroup$
This doesn't directly answer the question, but I think it's very important to note, and does not fit nicely into a single comment.
While the exponential distribution has a very nice theoretical derivation, and thus assuming the data produced follows the mechanisms assumed in the exponential distribution, it should theoretically give optimal estimates, in practice I've yet to run into a dataset where the exponential distribution produces even close to acceptable results (of course, this is dependent on the data types I've analyzed, almost all biological data). For example, I just looked at fitting a model with a variety of distributions using the first data set I could find in my R-package. For model checking of the baseline distribution, we typically compare against the semi-parametric model. Take a look at the results.
Survival Curves
Of the Weibull, log-logistic and log-normal distribution, there's not an absolute clear victor in terms of appropriate fit. But there's a clear loser: the exponential distribution! It's been my experience that this magnitude of mis-fitting is not exceptional, but rather the norm for the exponential distribution.
Why? Because the exponential distribution is a single parameter family. Thus, if I specify the mean of this distribution, I've specified all other moments of the distribution. These other families are all two parameter families. Thus, there's a lot more flexibility in those families to adapt to the data itself.
Now keep in mind that the Weibull distribution has the exponential distribution as a special case (i.e. when the shape parameter = 1). So even if the data truly is exponential, we only add a little more noise to our estimates by using a Weibull distribution over an exponential distribution. As such, I would just about never recommend using the exponential distribution to model real data (and I'm curious to hear if any readers have an example of when it's actually a good idea).
$\endgroup$
6
• 1
$\begingroup$ I am not convinced of this answer: 1) "using the first data set I could find in my R-package"... Really? ... on stats.stackexchange? One random sample and we draw general conclusions? 1b) For models where the failure time tends to be distributed around a given value (like people's life), clearly the distributions like Gamma, Weibull, etc are more suited; when events are equally probable an exponential distribution is more suited. I bet your "first data set" above is of the first kind. 2) All other models have 2 parameters, one should use e.g. the Bayes factor to compare the models. $\endgroup$
– Luca Citi
Commented Mar 19, 2017 at 22:57
• 2
$\begingroup$ @LucaCiti: "the first data set in my R-package" means the first dataset in the R-package that I published (icenReg). And I did note that my experience with the exponential distribution always having a poor fit was dependent on the type of data I've analyzed; almost exclusively biological data. Finally, as I stated in the end, I'm very curious to hear real applied examples where there's a convincing reason to use the exponential distribution, so if you have one, please share. $\endgroup$
– Cliff AB
Commented Mar 20, 2017 at 1:47
• 1
$\begingroup$ A scenario when you might want to use the exponential distribution would be when (a) you had a lot of historic data that showed that the data really was well approximated with an exponential distribution and (b) you needed to make inference with small samples (i.e. n < 10). But I don't know of any real applications like this. Maybe in some sort of manufacturing quality control problem? $\endgroup$
– Cliff AB
Commented Mar 20, 2017 at 1:53
• 1
$\begingroup$ Hi Cliff, thanks for taking the time to reply to my comment. I think roughly speaking a distribution like the Weibull fits better situations corresponding to questions like "what is the life time of individual x in my sample" or "when is neuron x going to fire again" or "when is firefly x going to flash again". Conversely, an exponential distribution models questions like "when is the next death expected to happen in my population", "when is the next neuron going to fire" or "when is a firefly in the swarm going to flash" $\endgroup$
– Luca Citi
Commented Mar 20, 2017 at 8:54
• $\begingroup$ @LucaCiti; ha, just got that your earlier poke was a joke about making an inference with n = 1. Don't know how I missed it the first time. In my defense, if we have theory that says the estimator should be asymptotically normal yet it's 4+ standard deviations away from the other asymptotically normal estimates, then we can! But in all seriousness, it's not that one plot that convinced me, but seeing that same level of deviation consistently. I may get blocked if I spam 20+ plots of bad exponential fits though. $\endgroup$
– Cliff AB
Commented Mar 21, 2017 at 14:04
6
$\begingroup$
Another reason why the exponential distribution crops up often to model interval between events is the following.
It is well known that, under some assumptions, the sum of a large number of independent random variables will be close to a Gaussian distribution. A similar theorem holds for renewal processes, i.e. stochastic models for events that occur randomly in time with I.I.D. inter-event intervals. In fact, the Palm–Khintchine theorem states that the superposition of a large number of (not necessarily Poissonian) renewal processes behaves asymptotically like a Poisson process. The inter-event intervals of a Poisson process are exponentially distributed.
$\endgroup$
3
$\begingroup$
tl;dr- An expontential distribution is equivalent to assuming that individuals are as likely to die at any given moment as any other.
Derivation
1. Assume that a living individual is as likely to die at any given moment as at any other.
2. So, the death rate $-\frac{\text{d}P}{\text{d}t}$ is proportional to the population, $P$.
$$-\frac{\text{d}P}{\text{d}t}{\space}{\propto}{\space}P$$
1. Solving on WolframAlpha shows:
$$P\left(t\right)={c_1}{e^{-t}}$$
So, the population follows an exponential distribution.
Math note
The above math is a reduction of a first-order ordinary differential equation (ODE). Normally, we would also solve for $c_0$ by noting the boundary condition that population starts at some given value, $P\left(t_0\right)$, at start-time $t_0$.
Then the equation becomes: $$P\left(t\right)={e^{-t}}P\left({t_0}\right).$$
Reality check
The exponential distribution assumes that people in the population tend to die at the same rate over time. In reality, death rates will tend to vary for finite populations.
Coming up with better distributions involves stochastic differential equations. Then, we can't say that there's a constant death likelihood; rather, we have to come up with a distribution for each individual's odds of dying at any given moment, then combine those various possibility trees together for the entire population, then solve that differential equation over time.
I can't recall having seen this done in anything online before, so you probably won't run into it; but, that's the next modeling step if you want to improve upon the exponential distribution.
$\endgroup$
3
$\begingroup$
(Note that in the part you quoted, the statement was conditional; the sentence itself didn't assume exponential survival, it explained a consequence of doing so. Nevertheless assumption of exponential survival are common, so it's worth dealing with the question of "why exponential" and "why not normal" -- since the first is pretty well covered already I'll focus more on the second thing)
Normally distributed survival times don't make sense because they have a non-zero probability of the survival time being negative.
If you then restrict your consideration to normal distributions that have almost no chance of being near zero, you can't model survival data that has a reasonable probability of a short survival time:
survival time distributions -- normal mean 100 sd 10 vs a particular distribution with mean 100 and sd 42 which has more than 20% probability of survival times between 0 and 50
Maybe once in a while survival times which have almost no chance of short survival times would be reasonable, but you need distributions that make sense in practice -- usually you observe short and long survival times (and anything in between), with typically a skewed distribution of survival times). An unmodified normal distribution will rarely be useful in practice.
[A truncated normal might more often be a reasonable rough approximation than a normal, but other distributions will often do better.]
The constant-hazard of the exponential is sometimes a reasonable approximation for survival times.. For example, if "random events" like accident are a major contributor to death-rate, exponential survival will work fairly well. (Among animal populations for example, sometimes both predation and disease can act at least roughly like a chance process, leaving something like an exponential as a reasonable first approximation to survival times.)
One additional question related truncated normal: if normal is not appropriate why not normal squared (chi sq with df 1)?
Indeed that might be a little better ... but note that that would correspond to an infinite hazard at 0, so it would only occasionally be useful. While it can model cases with a very high proportion of very short times, it has the converse problem of only being able to model cases with typically much shorter than average survival (25% of survival times are below 10.15% of the mean survival time and half of the survival times are less than 45.5% of the mean; that is median survival is less than half the mean.)
Let's look at a scaled $χ^2_1$ (i.e. a gamma with shape parameter $\frac12$):
Similar plot to before, but also with density of a variate that is 100 times a chi-squared(1); it's got a high peak at 0 and a very heavy tail -- the mean is 100 but the sd is about 141 and the median is about 45.
[Maybe if you sum two of those $χ^2_1$ variates... or maybe if you considered noncentral $χ^2$ you would get some suitable possibilities. Outside of the exponential, common choices of parametric distributions for survival times include Weibull, lognormal, gamma, log-logistic among many others ... note that the Weibull and the gamma include the exponential as a special case]
$\endgroup$
3
• $\begingroup$ thanks, i have been waiting to your answer since yesterday :). One additional question related truncated normal: if normal is not appropriate why not normal squared (chi sq with df 1)? $\endgroup$
– Haitao Du
Commented Mar 19, 2017 at 1:31
• $\begingroup$ Indeed that might be a little better ... but note that that would correspond to an infinite hazard at 0 -- so it would only occasionally be useful. It has the converse problem of only modelling cases with typically much shorter than average survival (25% of survival times are below 10.15% of the mean survival time and half of the survival times are less than 45.5% of the mean) Maybe if you sum two of those $\chi^2_1$ variates you could get a less surprising hazard function. . .;P $\endgroup$
– Glen_b
Commented Mar 19, 2017 at 2:01
• $\begingroup$ again thank you for education my the intuition behind things. I have seen too much recipe level tutorials and people doing things without knowing why. CV is a great place to learn. $\endgroup$
– Haitao Du
Commented Mar 19, 2017 at 2:08
1
$\begingroup$
If we want time to be strictly positive, why not make normal distribution with higher mean and very small variance (will have almost no chance to get negative number.)?
Because
1. that still has a nonzero probability of being negative, so it's not strictly positive;
2. the mean and variance are something that you can measure from the population you're trying to model. If your population has mean 2 and variance 1, and you model it with a normal distribution, that normal distribution will have substantial mass below zero; if you model it with a normal distribution with mean 5 and variance 0.1, your model obviously has very differnt properties to the thing it's supposed to model.
The normal distribution has a particular shape, and that shape is symmetrical about the mean. The only way to adjust the shape are to move it right and left (increase or decrease the mean) or to make it more or less spread out (increase or decrease the variance). This means that the only way to get a normal distribution where most of the mass is between two and ten and only a tiny amount of the mass is below zero, you need to put your mean at, say, six (the middle of the range) and set the variance small enough that only a tiny fraction of samples are negative. But then you'll probably find that most of your samples are 5, 6 or 7, whereas you were supposed to have quite a lot of 2s, 3s, 4s, 8s, 9s and 10s.
$\endgroup$
Your Answer
By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.
Not the answer you're looking for? Browse other questions tagged or ask your own question. | __label__pos | 0.883403 |
ECMS - Thorough Reinstall
When a normal reinstall of the Perceptive Content desktop client fails to resolve an issue, the following steps can be used to thoroughly reinstall the client.
1. Log into the workstation as a Local Administrator.
2. Set Data Execution Prevention (DEP) to on for essential Windows programs and services only.
1. Open the Start Menu then right click on Computer. Choose Properties.
2. In the System Information window that appears, choose Advanced System Settings.
3. Under Performance, choose Settings.
4. Under the Data Execution Prevention tab, ensure that Turn on DEP for essential Windows programs and services only is selected. Apply changes as necessary.
3. Turn off UAC.
1. Open Control Panel and navigate to Action Center.
2. In the Action Center, choose Change User Account Control settings.
3. Move the slider the bottom for Never Notify. Click OK.
4. Turn off XPS Services and XPS Viewer.
1. Open Control Panel and navigate to Program and Features.
2. Click Turn windows features on or off.
3. Scroll to the bottom of the list and uncheck XPS Services and XPS Viewer. Click OK. It may take a moment for the changes to finish processing.
5. Verify that the current local administrator account has Modify, Read, and Write permissions to both of the following folders:
• C:\Program Files (x86)\ImageNow
• C:\ProgramData\ImageNow
6. Uninstall and then reinstall the client (as a local administrator).
7. Navigate C:\Program Files (x86)\ImageNow\etc\inowprint.ini. Open the file in a text editor and edit the "Compression Settings" section of the file as follows:
• Remove the asterisk from this line: *[Compression]
• Change BW to Color from this line: Color reduction=BW
8. Check to see if the issue is now resolved.
See Also:
Keywords:uninstall reinstall imagenow perceptive content experience desktop client printer issues color broken Doc ID:61950
Owner:CRAIG S.Group:ECMS
Created:2016-03-16 09:43 CSTUpdated:2021-10-05 11:14 CST
Sites:ECMS
Feedback: 0 0 | __label__pos | 0.820544 |
Skip to content
Instantly share code, notes, and snippets.
Embed
What would you like to do?
Inheritance with PLY (Python Lex-Yacc)
from __future__ import print_function
import a
import b
def main():
aparser = a.AParser()
s1 = "10 + (2 + (13) + 8)"
print(s1)
print(aparser.parse(s1))
print()
bparser = b.BParser()
s2 = "100 - 15 - 3"
print(s2)
print(bparser.parse(s2))
print()
if __name__ == "__main__":
main()
This Gist demonstrates the use of inheritance with PLY parsers. Here, BaseLexer and BaseParser are defined in the module base.py. ALexer and AParser, in a.py, and BLexer and BParser, in b.py, inherit from BaseLexer and BaseParser, extending the list of tokens and the parser rules. As a toy example, these parsers evaluate a limited subset of arithmetic expressions. base.py contains rules for numbers and parentheses, a.py adds rules for addition, and b.py adds rules for subtraction.
There are several key ingredients needed to make this work well. First, as described in the PLY documentation, each lexer needs to be in a different Python module, i.e. in a different .py file, to avoid confusing PLY's error checking. Next, the lexers and parsers are all defined from class instances. As described in the documentation, this is accomplished by calling ply.lex.lex() and ply.yacc.yacc() with the module keyword argument set to the class instance. The BaseLexer class additionally implements __iter__(), token(), and input() methods, so that its instances can be used directly in the parser. Furthermore, a different tabmodule argument is passed to ply.yacc.yacc() in each file, so that the different parsers don't clobber each other's cached tables.
With all this scaffolding in place, we create subclasses of base.BaseLexer and base.BaseParser. In ALexer and BLexer, we set the tokens class-level variable by adding base.BaseLexer.tokens and a list of new tokens. When PLY sets up the lexers and parsers for the subclasses, it does so using dir(), so it sees all tokens and parser rules from both the subclass and the parent class. From here on out, everything should work as expected.
In this example, ply.yacc.yacc() is also called with start set, to specify which grammar symbol is returned at the top level. Additionally, t_newline(), t_error(), and p_error() are set up to track line numbers and provide verbose error messages, including locations in the file.
import ply.lex
import ply.yacc
import base
class ALexer(base.BaseLexer):
def __init__(self):
self.lexer = ply.lex.lex(module=self)
self.lexer.linepos = 0
tokens = base.BaseLexer.tokens + ["PLUS"]
t_PLUS = "\\+"
class AParser(base.BaseParser):
tokens = ALexer.tokens
def __init__(self):
self.lexer = ALexer()
self.parser = make_parser(self)
def p_expression_add(self, p):
"expression : expression PLUS expression_factor"
p[0] = p[1] + p[3]
def make_parser(mod):
return ply.yacc.yacc(module=mod,
start="expression",
tabmodule="aparsetab",
outputdir=".")
if __name__ == "__main__":
make_parser(AParser)
import ply.lex
import ply.yacc
import base
class BLexer(base.BaseLexer):
def __init__(self):
self.lexer = ply.lex.lex(module=self)
self.lexer.linepos = 0
tokens = base.BaseLexer.tokens + ["MINUS"]
t_MINUS = "-"
class BParser(base.BaseParser):
tokens = BLexer.tokens
def __init__(self):
self.lexer = BLexer()
self.parser = make_parser(self)
def p_expression_subtract(self, p):
"expression : expression MINUS expression_factor"
p[0] = p[1] - p[3]
def make_parser(mod):
return ply.yacc.yacc(module=mod,
start="expression",
tabmodule="bparsetab",
outputdir=".")
if __name__ == "__main__":
make_parser(BParser)
import ply.lex
import ply.yacc
class BaseLexer(object):
def __init__(self):
self.lexer = ply.lex.lex(module=self)
self.lexer.linestart = 0
def __iter__(self):
return iter(self.lexer)
def token(self):
return self.lexer.token()
def input(self, data):
self.lexer.input(data)
tokens = [
"IMMEDIATE",
"LPAREN",
"RPAREN",
]
t_IMMEDIATE = "[0-9]+"
t_LPAREN = "\\("
t_RPAREN = "\\)"
t_ignore = " "
def t_newline(self, t):
"\\n+"
t.lexer.lineno += len(t.value)
t.lexer.linestart = t.lexer.lexpos
def t_error(self, t):
raise Exception("Illegal character '%s' on line %d, column %d" %
(t.value[0],
t.lexer.lineno,
t.lexer.lexpos - t.lexer.linestart + 1))
class BaseParser(object):
tokens = BaseLexer.tokens
def __init__(self):
self.lexer = BaseLexer()
self.parser = make_parser(self)
def p_expression(self, p):
"expression : expression_factor"
p[0] = p[1]
def p_expression_factor_immediate(self, p):
"expression_factor : IMMEDIATE"
p[0] = int(p[1])
def p_expression_factor_parens(self, p):
"expression_factor : LPAREN expression RPAREN"
p[0] = p[2]
def p_error(self, p):
if p:
stack_state_str = " ".join([symbol.type for symbol
in self.parser.symstack[1:]])
raise Exception("Syntax error at '%s', type %s, on line %d\n"
"Parser state: %s %s . %s" %
(p.value, p.type, p.lineno,
self.parser.state, stack_state_str, p))
else:
raise Exception("Syntax error at EOF")
def parse(self, text):
return self.parser.parse(text, self.lexer)
def make_parser(mod):
return ply.yacc.yacc(module=mod,
start="expression",
tabmodule="baseparsetab",
outputdir=".")
if __name__ == "__main__":
make_parser(BaseParser)
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
You can’t perform that action at this time. | __label__pos | 0.959097 |
Mise en route du suivi.
[aidenligne_francais_universite.git] / ecrire / extract / pdf.php
CommitLineData
c495c100
P
1<?php
2
3//
4// Lit un document 'pdf' et extrait son contenu en texte brut
5//
6
7// NOTE : l'extracteur n'est pas oblige de convertir le contenu dans
8// le charset du site, mais il *doit* signaler le charset dans lequel
9// il envoie le contenu, de facon a ce qu'il soit converti au moment
10// voulu ; dans le cas contraire le document sera lu comme s'il etait
11// dans le charset iso-8859-1
12
13// http://doc.spip.org/@extracteur_pdf
14function extracteur_pdf($fichier, &$charset) {
15
16 /* methode tout PHP
17 $pdf = new Format_PDF;
18 $texte = $pdf->extraire_texte($fichier);
19 echo $texte;
20 exit;
21 */
22
23 $charset = 'iso-8859-1';
24
25 # metamail
26 @exec('metamail -d -q -b -c application/pdf '.escapeshellarg($fichier), $r, $e);
27 if (!$e) return @join(' ', $r);
28
29 # pdftotext
30 # http://www.glyphandcog.com/Xpdf.html
31 # l'option "-enc utf-8" peut echouer ... dommage !
32 @exec('pdftotext '.escapeshellarg($fichier).' -', $r, $e);
33 if (!$e) return @join(' ', $r);
34}
35
36// Sait-on extraire ce format ?
37// TODO: ici tester si les binaires fonctionnent
38$GLOBALS['extracteur']['pdf'] = 'extracteur_pdf';
39
40
41
42
43
44
45//
46// Methode tout PHP (a tester)
47//
48
49// http://doc.spip.org/@Format_PDF
50class Format_PDF {
51 var $trans_chars;
52 var $flag_mono, $flag_brut;
53
54// http://doc.spip.org/@convertir_caracteres
55 function convertir_caracteres($texte) {
56 if (!$this->trans_chars) {
57 // Caracteres speciaux
58 $this->trans_chars = array(
59 // ligatures typographiques (!)
60 chr(2) => 'fi',
61 chr(3) => 'fl',
62 chr(174) => 'fi',
63 chr(175) => 'fl',
64 // "e" accent aigu
65 chr(0) => chr(233)
66 );
67 }
68 $texte = strtr($texte, $this->trans_chars);
69 // Caracteres non-ascii codes en octal
70 while (preg_match(',\\\\([0-7][0-7][0-7]),', $texte, $regs)) {
71 $c = chr(octdec($regs[1]));
72 $texte = str_replace($regs[0], $c, $texte);
73 $this->trans_chars[$regs[0]] = $c;
74 }
75 return $texte;
76 }
77
78// http://doc.spip.org/@recoller_texte
79 function recoller_texte($stream) {
80 static $chars_voyelles, $chars_fusion, $chars_caps, $chars_nums, $bichars_fusion;
81 if (!$chars_voyelles) {
82 $chars_voyelles = array('a'=>1, 'e'=>1, 'i'=>1, 'o'=>1, 'u'=>1, 'y'=>1);
83 $chars_fusion = array('v'=>1, 'w'=>1, 'x'=>1, 'V'=>1, 'W'=>1, 'T'=>1);
84 $chars_caps = array('A'=>1, 'B'=>1, 'C'=>1, 'D'=>1, 'E'=>1, 'F'=>1, 'G'=>1,
85 'H'=>1, 'I'=>1, 'J'=>1, 'K'=>1, 'L'=>1, 'M'=>1, 'N'=>1,
86 'O'=>1, 'P'=>1, 'Q'=>1, 'R'=>1, 'S'=>1, 'T'=>1, 'U'=>1,
87 'V'=>1, 'W'=>1, 'X'=>1, 'Y'=>1, 'Z'=>1);
88 $chars_nums = array('0'=>1, '1'=>1, '2'=>1, '3'=>1, '4'=>1, '5'=>1, '6'=>1, '7'=>1, '8'=>1, '9'=>1);
89 $bichars_fusion = array('ve'=>1, 'vo'=>1, 'ev'=>1, 'ov'=>1,
90 'xe'=>1, 'xo'=>1, 'ox'=>1, 'ex'=>1,
91 'we'=>1, 'wo'=>1, 'ow'=>1, 'ew'=>1, 'ff'=>1);
92 }
93 // Longueur max pour limiter les erreurs d'extraction
94 $chaine_len = 140;
95
96 $stream = preg_split(",\)[^(]*\(,", $stream);
97 $extrait = '';
98 $fini = false;
99 $this->flag_brut = false;
100 // Cette boucle est capable de basculer entre deux trois d'execution :
101 // - normal (plusieurs caracteres par chaine avec fusion)
102 // - brut (plusieurs caracteres par chaine sans fusion)
103 // - mono (un caractere par chaine)
104 while (1) {
105 if ($this->flag_mono) {
106 // Un caractere par chaine : fusion rapide
107 while (list(, $s) = each($stream)) {
108 if (strlen($s) != 1) {
109 if (strlen($s) < $chaine_len) $extrait .= $s;
110 $this->flag_mono = false;
111 break;
112 }
113 $extrait .= $s;
114 }
115 if ($this->flag_mono) break;
116 }
117 else if ($this->flag_brut) {
118 // Concatenation sans fusion
119 while (list(, $s) = each($stream)) $extrait .= $s;
120 break;
121 }
122 $prev_s = '';
123 $prev_c = '';
124 $prev_l = 0;
125 $nb_mono = 0;
126 $nb_brut = 0;
127 // Cas general : appliquer les regles de fusion
128 while (list(, $s) = each($stream)) {
129 $l = strlen($s);
130 if ($l >= $chaine_len) continue;
131 $c = $s{0};
132 // Annulation de la cesure
133 if ($prev_c == '-') {
134 $extrait .= substr($prev_s, 0, -1);
135 }
136 else {
137 $extrait .= $prev_s;
138 $len_w = strpos($s.' ', ' ');
139 $prev_len_w = $prev_l - strrpos($prev_s, ' ');
140 $court = ($prev_len_w < 3 OR $len_w < 3);
141 // Heuristique pour separation des mots
142 if (/*$len_w == 1 OR $prev_len_w == 1
143 OR */($court AND ($chars_fusion[$prev_c] OR $chars_fusion[$c]
144 OR ($chars_caps[$prev_c] AND ($chars_caps[$c] OR $chars_nums[$c]))))
145 OR ($prev_c == 'f' AND $chars_voyelles[$c])
146 OR $bichars_fusion[$prev_c.$c]) {
147 }
148 else $extrait .= ' ';
149 }
150 $prev_c = $s{$l - 1};
151 $prev_s = $s;
152 $prev_l = $l;
153 // Detection du format mono-caractere
154 if ($l == 1) {
155 if (++$nb_mono >= 3) {
156 $this->flag_mono = true;
157 break;
158 }
159 }
160 else {
161 $nb_mono = 0;
162 if ($c == ' ' OR $prev_c == ' ') {
163 $this->flag_brut = true;
164 break;
165 }
166 }
167 }
168 $extrait .= $prev_s;
169 if (!$this->flag_mono && !$this->flag_brut) break;
170 }
171 return $extrait;
172 }
173
174// http://doc.spip.org/@extraire_texte
175 function extraire_texte($fichier) {
176
177 $source_len = 1024*1024;
178 $stream_len = 20*1024;
179 $texte_len = 40*1024;
180
181 $f = fopen($fichier, "rb");
182 if (!$f) die ("Fichier $fichier impossible a ouvrir");
183
184 $in_stream = false;
185
186 // Decouper le fichier en objets
187 unset($objs);
188 $objs = fread($f, $source_len);
189 $objs = preg_split('/[\s>]endobj\s+/', $objs);
190# echo "<h3>".count($objs)." objets présents dans le buffer</h3>";
191
192 // Parcourir le fichier pour trouver les streams
193 reset($objs);
194 $n = count($objs);
195 for ($i = 0; $i < $n; $i++) {
196 $obj = $objs[$i];
197
198 if (!$in_stream) {
199 // Stream (eviter les commentaires)
200 $ok = preg_match("/stream(\r\n?|\n)/", $obj); // version rapide d'abord
201 if ($ok) $ok = preg_match("/[\r\n](([^\r\n%]*[ \t>])*stream(\r\n?|\n))/", $obj, $regs);
202 if (!$ok) continue;
203 $p = strpos($obj, $regs[1]);
204 $t = substr($obj, $p + strlen($regs[1]));
205 $stream = "";
206 $in_stream = true;
207
208 $obj_text = substr($obj, 0, $p + strlen($regs[1]));
209
210 // Parasites avant et apres
211 //$obj_text = preg_replace("/^\s+obj\s+/", "", $obj_text);
212 //$obj_text = preg_replace("/(\s+endobj)\s+.*$/", "\\1", $obj_text);
213
214 // Commentaires
215 $obj_text = preg_replace("/\\\\%/", ' ', $obj_text);
216 $obj_text = preg_replace("/%[^\r\n]*[\r\n]+/", '', $obj_text);
217
218 // Dictionnaire
219 $obj_dict = "";
220 //if (ereg("<<(.*)>>", $obj_text, $regs))
221 if (preg_match("/<<(.*)>>/s", $obj_text, $regs)) // bug ?!
222 $obj_dict = $regs[1];
223
224# echo "<hr>";
225# echo "Objet numéro $i<p>";
226# echo "<pre>".htmlspecialchars($obj_text)."</pre>";
227 }
228 else {
229 $t = " endobj ".$obj; // approximation
230 }
231 unset($obj);
232
233 // Recoller les morceaux du stream (au cas ou un "obj" se trouvait en clair dans un stream)
234 if ($in_stream) {
235 if (!($p = strpos($t, "endstream")) && !($q = strpos($t, "endobj"))) {
236 $stream .= $t;
237# echo "<span style='color: red'>Stream continué</span><p>";
238 continue;
239 }
240 $in_stream = false;
241 if ($p) $stream .= substr($t, 0, $p);
242 else $stream .= substr($t, 0, $q);
243 unset($t);
244
245 // Decoder le contenu du stream
246 $encoding = '';
247 if (preg_match(",/Filter\s*/([A-Za-z]+),", $obj_dict, $regs))
248 $encoding = $regs[1];
249 switch($encoding) {
250 case 'FlateDecode':
251 $stream = gzuncompress($stream); // pb avec certains PDFs !?
252 break;
253 case '':
254 break;
255 default:
256 $stream = '';
257 }
258 /*if (preg_match("/\(d.marrage:\)/", $stream, $regs)) {
259 $fs = fopen("demarrage.txt", "w");
260 fwrite($fs, $regs[0]);
261 fclose($fs);
262 exit;
263 }*/
264 }
265
266 if (!$stream) continue;
267
268# echo "Stream : ".strlen($stream)." octets<p>";
269
270 // Eviter les fontes embarquees, etc.
271 if (preg_match(',^%!,', $stream)) {
272 unset($stream);
273 continue;
274 }
275 // Detection texte / binaire
276 $stream = substr($stream, 0, $stream_len);
277 $stream = str_replace('\\(', ",", $stream);
278 $stream = str_replace('\\)', ",", $stream);
279 $n1 = substr_count($stream, '(');
280 $n2 = substr_count($stream, ')');
281 $freq = (substr_count($stream, ' ') + $n1 + $n2) / strlen($stream);
282 if ($freq < 0.04 || (!$n1 && !$n2)) {
283# echo "no text (1)<p>";
284 //echo htmlspecialchars($stream);
285 unset($stream);
286 continue;
287 }
288 $dev = abs($n1 - $n2) / ($n1 + $n2);
289 if ($dev > 0.05) {
290# echo "no text (2)<p>";
291 unset($stream);
292 continue;
293 }
294 // Extraction des chaines
295 if (strpos($stream, '<<') && strpos($stream, '>>'))
296 $stream = preg_replace(',<<.*?'.'>>,s', '', $stream); // bug avec preg
297 $stream = substr($stream, strpos($stream, '(') + 1);
298 $stream = substr($stream, 0, strrpos($stream, ')')); // ici un bug occasionnel...
299 $stream = $this->convertir_caracteres($stream);
300 $extrait = $this->recoller_texte($stream);
301 unset($stream);
302 $texte .= $extrait;
303
304 // Se limiter a une certaine taille de texte en sortie
305 if (strlen($texte) > $texte_len) {
306 $texte = substr($texte, 0, strrpos(substr($texte, 0, $texte_len), ' '));
307 break;
308 }
309 }
310
311 fclose($f);
312
313 return $texte;
314 }
315
316} // class
317
318
319?> | __label__pos | 0.985931 |
Module sort [preloaded]
The predicate sys_distinct/1 will remove duplicates from a list using a hash set in the current implementation, thus relying only on equality among the elements. On the other hand the predicate sort/2 will sort a list by using a tree in the current implementation and also requires comparison among the elements.
Examples:
?- sys_distinct([2,1,3,1], X).
X = [2,1,3]
?- sort([2,1,3,1], X).
X = [1,2,3]
The predicate sys_keygroup/2 will key group a list using a hash table in the current implementation, thus relying only on equality among the keys. On the other hand the predicate keysort/2 will key sort a list by using a tree in the current implementation, thus also requiring comparison among the keys.
Examples:
?- hash_code(f, R).
R = 102
?- term_hash(f(X), 1, 1000, R).
R = 102
The hash code that is the basis for the removal and grouping predicates can be queried by the predicates hash_code/2. The hash code is recursively computed along the structure of the given term. The hash code that forms the basis of our clause indexing can be queried by the predicates term_hash/[2,4].
The following set predicates are provided:
sort(L, R): [TC2 8.4.3]
The predicate sorts the list L and unifies the result with R.
sys_distinct(L, R):
The predicate sorts the list L and unifies the result with R.
keysort(L, R): [TC2 8.4.4]
The predicate key-sorts the pair list L and unifies the result with R.
sys_keygroup(L, R):
The predicate key-groups the pair list L and unifies the result with R.
hash_code(T, H):
The predicate succeeds when H unifies with the hash code of T. The term T need not be ground. The hash will be in the range from -2147483648 to 2147483647.
term_hash(T, H):
term_hash(T, D, R, H):
The predicate succeeds when T is ground and when H unifies with the hash code of T. The predicate also succeeds when T is non-ground, the H argument is then simply ignored. The quinary predicate allows specifying a depth D and a modulus R. A negative depth D is interpreted as infinity.
locale_sort(L, R):
locale_sort(C, L, R):
The predicate local sorts the list L and unifies the result with R. The ternary predicate allows specifying a locale C.
locale_keysort(L, R):
locale_keysort(C, L, R):
The predicate locale key-sorts the pair list L and unifies the result with R. The ternary predicate allows specifying a locale C.
Kommentare | __label__pos | 0.721482 |
Python lesson 16.2 | Sololearn: Learn to code for FREE!
-1
Python lesson 16.2
Can anybody help me figure out how to do this lesson. I am completely new to programming and I'm having some trouble.
2/6/2021 3:34:12 AM
Raul
8 Answers
New Answer
+3
Raul Read the given description carefully. As you mentioned you need (***) on both side of your text. Here, for the text you will be taking as input & on both sides you will be adding (***) & by concatenation. Hope this helps you 👍
+3
have you checked the comments of the lesson before posting in general Q&A Discussions section?
+1
so, please provide an accurate description of your problem, or at least the link to the lesson about ^^
+1
can't solve the practice for 16.2. for some reason when i do the input it puts both the hello from the input line and the one from the print line
0
I checked the comments as suggested but nothing available to help my issue.
0
The lesson asks me to add (***) as an input. However I can't seem to get it on both sides of the word "hello". Any help is appreciated.
0
So, I am also having trouble with this 16.2 beginners python lesson. I understand that we need to have (***) as an input, but I can only get it on one side. (ex. of my incorrect solution to the problem 👇) stars=input(“***”) print(stars + “hello” + stars) output: ***hellohellohello
0
you don't have to provide argument to input... you just have to print input result enclosed by triple asterisk: inp = input() print('***'+inp+'***') | __label__pos | 0.970188 |
The LINQ Query operators are a series of continuation methods that form a query pattern. These functions are the extension methods for either IEnumerable<T> and IQueryable<T> and they’re defined in the System.Linq.Queryable and System.Linq.Enumerable predefined libraries,
They form the building blocks of LINQ query expressions and are called by using either static method syntax or instance method syntax.
There are around 50 standard query operators available in LINQ that include set operations, concatenation, sorting operators, filtering operators, element operators, aggregation, and so on. The set operations include four methods: Distinct, Except, Intersect, and Union.
Become a Skilled Web Developer in Just 9 Months!
Caltech PGP Full Stack DevelopmentExplore Program
Become a Skilled Web Developer in Just 9 Months!
What Is LINQ Distinct Method in C#?
C# Linq Distinct() method removes the duplicate elements from a sequence (list) and returns the distinct elements from a single data source. It comes under the Set operators’ category in LINQ query operators, and the method works the same way as the DISTINCT directive in Structured Query Language (SQL).
Syntax of Linq Distinct Method in C#:
IEnumerable<data type> result = numbers.Distinct();
Here is a sample code showing the implementation of C# LINQ Distinct().
using System;
using System.Linq;
using System.Collections.Generic;
namespace Ctutorials
{
class Linqprogram
{
static void Main(string[ ] args)
{
String[ ] fruits = { "Apple", "Banana", "Apple", "Plum", "Grapes", "Plum" };
IEnumerable<string> result= fruits.Distinct(); //LINQ distinct function
foreach (var item in result)
{
Console.WriteLine(item);
}
Console.ReadLine();
}
}
}
Output
APPLE
BANANA
PLUM
GRAPES
Explanation
The array read multiple strings, and the LINQ distinct removed the repeated elements in the list.
Become an Automation Test Engineer in 11 Months!
Automation Testing Masters ProgramExplore Program
Become an Automation Test Engineer in 11 Months!
Examples of LINQ Distinct Method Using Both Method and Query Syntax
Here’s an example code that will read students’ marks with C# LINQ Distinct Method using both Method and Query Syntax.
using System;
using System.Collections.Generic;
using System.Linq;
namespace LINQCode
{
class GradeMarks
{
static void Main(string[] args)
{
List<int> intCollection = new List<int>()
{
90,67,78,89,98,89,90,87,78,82,90,78
};
//Method Syntax
var Marks = intCollection.Distinct();
//Query Syntax
var Grades = (from num in intCollection select num).Distinct();
foreach (var item in Marks)
{
Console.WriteLine(item);
}
Console.ReadKey();
}
}
}
Output
90
67
78
89
98
87
82
Create and Showcase Your Portfolio from Scratch!
Caltech PGP Full Stack DevelopmentExplore Program
Create and Showcase Your Portfolio from Scratch!
How to Implement IEqualityComparer?
By default, LINQ distinct() in C# is case-sensitive. So, the default equality comparer might work well for numbers, but you might not get the exact distinct list in strings.
To solve this, we use the IEqualityComparer.
Syntax: public abstract class StringComparer: IComparer, IEqualityComparer, IComparer <string>,
What if we change the case of the first fruit program we discussed? Doing so will display the entire list since the C# LINQ distinct function is case-sensitive. Let’s see how we can make it work by using the IEqualityComparer.
using System;
using System.Linq;
using System.Collections.Generic;
namespace Ctutorials
{
class Linqprogram
{
static void Main(string[] args)
{
string[] fruits = { "Apple", "Banana", "apple", "Plum", "Grapes", "plum" };
//Using IEqualityComparer
IEnumerable<string> result= fruits.Distinct(StringComparer.OrdinalIgnoreCase);
foreach (var item in result)
{
Console.WriteLine(item);
}
Console.ReadLine();
}
}
}
Output
APPLE
BANANA
PLUM
GRAPES
Unleash a High-paying Automation Testing Job!
Automation Testing Masters ProgramExplore Program
Unleash a High-paying Automation Testing Job!
LINQ Distinct Operation With Complex Type
Now, what if we add the name of students to the marks obtained by them above?
Lets understand it through a code sample.
create a file named StudentMarks.cs to store the complex list.
using System;
using System.Linq;
using System.Collections.Generic;
namespace LINQTutorial
{
public class StudentMarks
{
public int Marks { get; set; }
public string Name { get; set; }
public static List<Student> GetStudents()
{
List<Student> students = new List<Student>()
{
new Student {Marks = 90, Name = "Vaibhav" },
new Student {Marks = 67, Name = "Akash" },
new Student {Marks = 78, Name = "Anjali" },
new Student {Marks = 89, Name = "Rithik" },
new Student {Marks = 98, Name = "Harsh" },
new Student {Marks = 89, Name = "Anjali" },
new Student {Marks = 90, Name = "Akash" },
new Student {Marks = 87, Name = "Sameera" },
new Student {Marks = 78, Name = "Priya" },
new Student {Marks = 82, Name = "Harsh" },
new Student {Marks = 90, Name = "Vaibhav" },
new Student {Marks = 78, Name = "Anjali" },
};
return students;
}
}
}
We will use this code in the main method.
using System;
using System.Linq;
namespace LINQTutorial
{
class MainStudent
{
public static void Main(string[] args)
{
//Using Method Syntax
var MS = Student.GetStudents()
.Select(std => std.Name)
.Distinct().ToList();
//Using Query Syntax
var QS = (from std in Student.GetStudents(select std.Name)
.Distinct().ToList();
foreach(var item in MS)
{
Console.WriteLine(item);
}
Console.ReadKey();
}
}
}
By default, The C# LINQ Distinct function will only be able to sort by either removing repeating student names or repeating marks.
Get All Your Questions Answered Here!
Caltech PGP Full Stack DevelopmentExplore Program
Get All Your Questions Answered Here!
How to Solve the Problem?
This problem can be solved by two different approaches.
1. Overriding the Equals() and GetHashCode() methods within the Student class
2. Using IEquatable<T> interface
Method 1
Create a file named StudentMarks.cs to type this code.
using System.Collections.Generic;
namespace LINQTutorial
{
public class StudentMarks
{
public int ID { get; set; }
public string Name { get; set; }
public static List<Student> GetStudents()
{
List<Student> students = new List<Student>()
{
new Student {Marks = 90, Name = "Vaibhav" },
new Student {Marks = 67, Name = "Akash" },
new Student {Marks = 78, Name = "Anjali" },
new Student {Marks = 89, Name = "Rithik" },
new Student {Marks = 98, Name = "Harsh" },
new Student {Marks = 89, Name = "Anjali" },
new Student {Marks = 90, Name = "Akash" },
new Student {Marks = 87, Name = "Sameera" },
new Student {Marks = 78, Name = "Priya" },
new Student {Marks = 82, Name = "Harsh" },
new Student {Marks = 90, Name = "Vaibhav" },
new Student {Marks = 78, Name = "Anjali" },
};
return students;
}
public override bool Equals(object obj)
{
//typecasting obj to Student Type
return this.ID == ((Student)obj).ID && this.Name == ((Student)obj).Name;
}
public override int GetHashCode()
{
//Getting the ID hash code value
int IDHashCode = this.ID.GetHashCode();
//Getting the string HashCode Value
int NameHashCode = this.Name == null ? 0 : this.Name.GetHashCode();
return IDHashCode ^ NameHashCode;
}
}
}
Now, we will call the method in the main function through this code:
using System;
using System.Linq;
namespace LINQTutorial
{
class MainStudent
{
public static void Main(string[] args)
{
// Method Syntax
var MS = Student.GetStudents()
.Distinct().ToList();
// Query Syntax
var QS = (from std in Student.GetStudents()
select std)
.Distinct().ToList();
foreach (var item in MS)
{
Console.WriteLine($"ID : {item.ID} , Name : {item.Name} ");
}
Console.ReadKey();
}
}
}
Output
Marks = 90, Name = Vaibhav
Marks = 67, Name = Akash
Marks = 78, Name = Anjali
Marks = 89, Name = Rithik
Marks = 98, Name = Harsh
Marks = 87, Name = Sameera
Method 2
Write this code sample in a new file named StudentMarks.cs.
using System.Collections.Generic;
namespace LINQTutorial
{
public class StudentMarks : IEquatable<StudentMarks>
{
public int ID { get; set; }
public string Name { get; set; }
public static List<StudentMarks> GetStudentsMarks()
{
List<StudentMarks> StudentMarkstudents = new List<StudentMarks>()
{
new Student {Marks = 90, Name = "Vaibhav" },
new Student {Marks = 67, Name = "Akash" },
new Student {Marks = 78, Name = "Anjali" },
new Student {Marks = 89, Name = "Rithik" },
new Student {Marks = 98, Name = "Harsh" },
new Student {Marks = 89, Name = "Anjali" },
new Student {Marks = 90, Name = "Akash" },
new Student {Marks = 87, Name = "Sameera" },
new Student {Marks = 78, Name = "Priya" },
new Student {Marks = 82, Name = "Harsh" },
new Student {Marks = 90, Name = "Vaibhav" },
new Student {Marks = 78, Name = "Anjali" },
};
return students;
}
public bool Equals(StudentMarks other)
{
if (object.ReferenceEquals(other, null))
{
return false;
}
if (object.ReferenceEquals(this, other))
{
return true;
}
return this.ID.Equals(other.ID) && this.Name.Equals(other.Name);
}
//creating the hashcode function
public override int GetHashCode()
{
int IDHashCode = this.ID.GetHashCode();
int NameHashCode = this.Name == null ? 0 : this.Name.GetHashCode();
return IDHashCode ^ NameHashCode;
}
}
}
Now, paste this code in the main method.
using System;
using System.Linq;
namespace LINQTutorial
{
class MainStudent
{
static void Main(string[] args)
{
//Method Syntax
var MS = StudentMarks.GetStudentsMarks()
.Distinct().ToList();
//Query Syntax
var QS = (from std in StudentMarks.GetStudents()
select std)
.Distinct().ToList();
foreach (var item in MS)
{
Console.WriteLine($"ID : {item.ID} , Name : {item.Name} ");
}
Console.ReadKey();
}
}
}
Output
Marks = 90, Name = Vaibhav
Marks = 67, Name = Akash
Marks = 78, Name = Anjali
Marks = 89, Name = Rithik
Marks = 98, Name = Harsh
Marks = 87, Name = Sameera
Learn 15+ In-Demand Tools and Skills!
Automation Testing Masters ProgramExplore Program
Learn 15+ In-Demand Tools and Skills!
Conclusion
Now that you have a strong understanding of C# linq distinct, you should learn the other important aspects and concepts of the language with this tutorial. However, in order to become a proficient full stack developer, knowledge of just one language may not be enough. You can enrol in our world-class Post Graduate Program in Full Stack Web Development and scale your programming and development career to new heights. Explore and enrol now!
If you have any questions regarding the article or the course, feel free to post them in the comments below. Our experts will review them and get back to you at the earliest.
About the Author
Ravikiran A SRavikiran A S
Ravikiran A S works with Simplilearn as a Research Analyst. He an enthusiastic geek always in the hunt to learn the latest technologies. He is proficient with Java Programming Language, Big Data, and powerful Big Data Frameworks like Apache Hadoop and Apache Spark.
View More
• Disclaimer
• PMP, PMI, PMBOK, CAPM, PgMP, PfMP, ACP, PBA, RMP, SP, and OPM3 are registered marks of the Project Management Institute, Inc. | __label__pos | 0.998398 |
Actual source code: aijcholmod.c
1: #include <../src/mat/impls/aij/seq/aij.h>
2: #include <../src/mat/impls/sbaij/seq/cholmod/cholmodimpl.h>
4: static PetscErrorCode MatWrapCholmod_seqaij(Mat A, PetscBool values, cholmod_sparse *C, PetscBool *aijalloc, PetscBool *valloc)
5: {
6: Mat_SeqAIJ *aij = (Mat_SeqAIJ *)A->data;
7: const PetscScalar *aa;
8: PetscScalar *ca;
9: const PetscInt *ai = aij->i, *aj = aij->j, *adiag;
10: PetscInt m = A->rmap->n, i, j, k, nz, *ci, *cj;
11: PetscBool vain = PETSC_FALSE;
13: PetscFunctionBegin;
14: PetscCall(MatMarkDiagonal_SeqAIJ(A));
15: adiag = aij->diag;
16: for (i = 0, nz = 0; i < m; i++) nz += ai[i + 1] - adiag[i];
17: PetscCall(PetscMalloc2(m + 1, &ci, nz, &cj));
18: if (values) {
19: vain = PETSC_TRUE;
20: PetscCall(PetscMalloc1(nz, &ca));
21: PetscCall(MatSeqAIJGetArrayRead(A, &aa));
22: }
23: for (i = 0, k = 0; i < m; i++) {
24: ci[i] = k;
25: for (j = adiag[i]; j < ai[i + 1]; j++, k++) {
26: cj[k] = aj[j];
27: if (values) ca[k] = PetscConj(aa[j]);
28: }
29: }
30: ci[i] = k;
31: *aijalloc = PETSC_TRUE;
32: *valloc = vain;
33: if (values) PetscCall(MatSeqAIJRestoreArrayRead(A, &aa));
35: PetscCall(PetscMemzero(C, sizeof(*C)));
37: C->nrow = (size_t)A->cmap->n;
38: C->ncol = (size_t)A->rmap->n;
39: C->nzmax = (size_t)nz;
40: C->p = ci;
41: C->i = cj;
42: C->x = values ? ca : 0;
43: C->stype = -1;
44: C->itype = CHOLMOD_INT_TYPE;
45: C->xtype = values ? CHOLMOD_SCALAR_TYPE : CHOLMOD_PATTERN;
46: C->dtype = CHOLMOD_DOUBLE;
47: C->sorted = 1;
48: C->packed = 1;
49: PetscFunctionReturn(PETSC_SUCCESS);
50: }
52: static PetscErrorCode MatFactorGetSolverType_seqaij_cholmod(Mat A, MatSolverType *type)
53: {
54: PetscFunctionBegin;
55: *type = MATSOLVERCHOLMOD;
56: PetscFunctionReturn(PETSC_SUCCESS);
57: }
59: /* Almost a copy of MatGetFactor_seqsbaij_cholmod, yuck */
60: PETSC_INTERN PetscErrorCode MatGetFactor_seqaij_cholmod(Mat A, MatFactorType ftype, Mat *F)
61: {
62: Mat B;
63: Mat_CHOLMOD *chol;
64: PetscInt m = A->rmap->n, n = A->cmap->n;
66: PetscFunctionBegin;
67: #if defined(PETSC_USE_COMPLEX)
68: if (A->hermitian != PETSC_BOOL3_TRUE) {
69: PetscCall(PetscInfo(A, "Only for Hermitian matrices.\n"));
70: *F = NULL;
71: PetscFunctionReturn(PETSC_SUCCESS);
72: }
73: #endif
74: /* Create the factorization matrix F */
75: PetscCall(MatCreate(PetscObjectComm((PetscObject)A), &B));
76: PetscCall(MatSetSizes(B, PETSC_DECIDE, PETSC_DECIDE, m, n));
77: PetscCall(PetscStrallocpy("cholmod", &((PetscObject)B)->type_name));
78: PetscCall(MatSetUp(B));
79: PetscCall(PetscNew(&chol));
81: chol->Wrap = MatWrapCholmod_seqaij;
82: B->data = chol;
84: B->ops->getinfo = MatGetInfo_CHOLMOD;
85: B->ops->view = MatView_CHOLMOD;
86: B->ops->choleskyfactorsymbolic = MatCholeskyFactorSymbolic_CHOLMOD;
87: B->ops->destroy = MatDestroy_CHOLMOD;
89: PetscCall(PetscObjectComposeFunction((PetscObject)B, "MatFactorGetSolverType_C", MatFactorGetSolverType_seqaij_cholmod));
91: B->factortype = MAT_FACTOR_CHOLESKY;
92: B->assembled = PETSC_TRUE;
93: B->preallocated = PETSC_TRUE;
95: PetscCall(PetscFree(B->solvertype));
96: PetscCall(PetscStrallocpy(MATSOLVERCHOLMOD, &B->solvertype));
97: B->canuseordering = PETSC_TRUE;
98: PetscCall(PetscStrallocpy(MATORDERINGEXTERNAL, (char **)&B->preferredordering[MAT_FACTOR_CHOLESKY]));
99: PetscCall(CholmodStart(B));
100: *F = B;
101: PetscFunctionReturn(PETSC_SUCCESS);
102: } | __label__pos | 0.994803 |
var vidyard_player_width_UuvoJvaq6qTXocJKebL4uM = 640; var vidyard_player_height_UuvoJvaq6qTXocJKebL4uM = 360; var vidyard_html5_UuvoJvaq6qTXocJKebL4uM = false; var vidyard_secure_UuvoJvaq6qTXocJKebL4uM = false; var vidyard_integration_check_UuvoJvaq6qTXocJKebL4uM = function() {}; var vidyard_UuvoJvaq6qTXocJKebL4uM_params = {}; var vidyard_UuvoJvaq6qTXocJKebL4uM_raw_params = ''; if (typeof(Vidyard) !== 'object') { var Vidyard = { _players: {} }; } Vidyard.currently_playing = Vidyard.currently_playing || false; Vidyard.Helpers = Vidyard.Helpers || {}; Vidyard.Helpers.addListener = function(eventName, ie8EventName, handler, element, useCapture) { element = element || window; useCapture = useCapture || false; if (element.addEventListener) { element.addEventListener(eventName, handler, useCapture); } else if (element.attachEvent) { element.attachEvent(ie8EventName, handler); } }; Vidyard.Helpers.removeListener = function(eventName, ie8EventName, handler, element, useCapture) { element = element || window; useCapture = useCapture || false; if (element.removeEventListener) { element.removeEventListener(eventName, handler, useCapture); } else if (element.detachEvent) { element.detachEvent(ie8EventName, handler); } }; Vidyard.Helpers.getPlayerIFrame = function(player_uuid) { return document.getElementById('vidyard_iframe_' + player_uuid); }; Vidyard.Helpers.remove = function(element) { if (element) { if (element.remove) { element.remove(); } else { element.removeNode(); } } }; (function() { var query_params = {}; var query_player_width; var query_player_height; var embed_script = document.getElementById('vidyard_embed_code_UuvoJvaq6qTXocJKebL4uM'); var playerDetails = {"keywords":"","thumbnailUrl":"https://cdn.vidyard.com/uploads/thumbnails/ec60f7e2-cde2-4072-86fe-b6cf82c87088_small.jpg","@context":"http://schema.org/","@type":"VideoObject","id":"UuvoJvaq6qTXocJKebL4uM","description":"No description","name":"Becoming a Video-Enabled Agency - Bringing Video to Your Clients","transcript":"","uploadDate":"2017-07-12T18:40:13.000Z","duration":"T2M9S","height":360,"width":640}; if (playerDetails.id && window.JSON) { var playerDetailsScriptTag = document.createElement('script'); playerDetailsScriptTag.text = window.JSON.stringify(playerDetails); playerDetailsScriptTag.type = 'application/ld+json'; document.getElementsByTagName('head')[0].appendChild(playerDetailsScriptTag); } // --- Begin Duplicate Player Embed Handling --- function check_for_duplicate_embeds() { // Check for an already existing player with the same ID, pop a console error and remove it var all_scripts = document.getElementsByTagName("script"); var dupe_scripts = []; // Finding all duplicate scripts tags in an IE7 friendly way for (var i = 0; i < all_scripts.length; ++i) { if (all_scripts[i].getAttribute('id') === "vidyard_embed_code_UuvoJvaq6qTXocJKebL4uM") { dupe_scripts.push(all_scripts[i]); } } dupe_scripts.shift(); if (dupe_scripts.length >= 1) { // Remove the duplicate script tags for (var i = 0; i < dupe_scripts.length; ++i) { dupe_scripts[i].parentNode.removeChild(dupe_scripts[i]); } if (typeof document.querySelectorAll === 'function') { // Find duplicate vidyard_wrapper div tags from lightbox embeds var wrappers = document.querySelectorAll('.vidyard_wrapper'); dupe_wrappers = []; for (var i = 0; i < wrappers.length; ++i) { if (wrappers[i].getAttributeNode('onclick').value === "fn_vidyard_UuvoJvaq6qTXocJKebL4uM();") { dupe_wrappers.push(wrappers[i]); } } dupe_wrappers.shift(); // Remove any duplicate vidyard_wrapper divs for (var i = 0; i < dupe_wrappers.length; ++i) { dupe_wrappers[i].parentNode.removeChild(dupe_wrappers[i]); } } // Throw a console error if it exists if (window.console && window.console.error) { console.error("Duplicate Embedded Players Detected. Vidyard only supports embedding the same player once in a page."); } } } if (document.readyState === 'complete') { check_for_duplicate_embeds(); } else { Vidyard.Helpers.addListener('load', 'onload', check_for_duplicate_embeds); } if (!embed_script || !embed_script.src) { // If ID is not reliable, search script objects for the script scripts = document.getElementsByTagName('script'); for (var i in scripts) { var script = scripts[i]; // Find the script from the vidyard domain that contains the player's id if (script.src && /^.+(vidyard\.com).*\/UuvoJvaq6qTXocJKebL4uM.*/.test(script.src)) { embed_script = script; break; } } } // --- Begin Player Rendering --- if (embed_script && embed_script.src) { // Player is signed, cannot change url parameters, Add 1 to the index to not include the '?' var queryParamIndex = embed_script.src.search(/\?/) + 1; var rawQueryParams = ''; if (queryParamIndex !== 0 && embed_script.src.length >= queryParamIndex) { rawQueryParams = embed_script.src.slice(queryParamIndex); } vidyard_UuvoJvaq6qTXocJKebL4uM_raw_params = rawQueryParams; // Find all query string key value pairs and loop over each pair embed_script.src.replace(/(?:[\?&])([^&=]*)=?([^&#]*)/g, function ($0, $1, $2) { if ($1) { switch ($1) { case 'playlist_always_open': case 'disable_ctas': case 'disable_popouts': case 'bwm_preview': case 'preview': case 'autoplay': case 'hide_playlist': case 'hide_html5_playlist': case 'name_overlay': case 'viral_sharing': case 'embed_button': case 'redirect_whole_page': case 'vylegacy': vidyard_UuvoJvaq6qTXocJKebL4uM_params[$1] = (parseInt($2, 10) !== 0); break; case 'chapter': vidyard_UuvoJvaq6qTXocJKebL4uM_params[$1] = parseInt($2, 10); break; case 'width': query_player_width = parseInt($2, 10); break; case 'height': query_player_height = parseInt($2, 10); break; case 'X-VY-Signature': vidyard_secure_UuvoJvaq6qTXocJKebL4uM = true; default: vidyard_UuvoJvaq6qTXocJKebL4uM_params[$1] = $2; break; } } }); } // Determine Embed Type if (!vidyard_UuvoJvaq6qTXocJKebL4uM_params.type || vidyard_UuvoJvaq6qTXocJKebL4uM_params.type !== 'lightbox') { vidyard_UuvoJvaq6qTXocJKebL4uM_params.type = 'inline'; } // Determine Player Settings which effect embed var multi_chapter = false && !(typeof vidyard_UuvoJvaq6qTXocJKebL4uM_params.hide_html5_playlist !== 'undefined' && vidyard_UuvoJvaq6qTXocJKebL4uM_params.hide_html5_playlist); var playlist_always_open = false; if (typeof vidyard_UuvoJvaq6qTXocJKebL4uM_params.playlist_always_open !== 'undefined') { playlist_always_open = vidyard_UuvoJvaq6qTXocJKebL4uM_params.playlist_always_open; } // Setting default player widths (also checking that query_player widht/height are valid) if (query_player_width && query_player_width > 0 && query_player_height && query_player_height > 0) { vidyard_player_width_UuvoJvaq6qTXocJKebL4uM = query_player_width; vidyard_player_height_UuvoJvaq6qTXocJKebL4uM = query_player_height; } else if (query_player_width && query_player_width > 0) { query_player_height = (query_player_width * vidyard_player_height_UuvoJvaq6qTXocJKebL4uM) / vidyard_player_width_UuvoJvaq6qTXocJKebL4uM; vidyard_player_width_UuvoJvaq6qTXocJKebL4uM = query_player_width; vidyard_player_height_UuvoJvaq6qTXocJKebL4uM = query_player_height; } else if (query_player_height && query_player_height > 0) { query_player_width = (query_player_height * vidyard_player_width_UuvoJvaq6qTXocJKebL4uM) / vidyard_player_height_UuvoJvaq6qTXocJKebL4uM; vidyard_player_width_UuvoJvaq6qTXocJKebL4uM = query_player_width; vidyard_player_height_UuvoJvaq6qTXocJKebL4uM = query_player_height; } var iframe_container = document.getElementById("vidyard_UuvoJvaq6qTXocJKebL4uM"); // Gets cookie of the supplied cookie_name function fn_getCookie(cookie_name) { var i, found_name, contained_id; var ARRcookies = document.cookie.split(";"); for (i = 0; i < ARRcookies.length; i++) { found_name = ARRcookies[i].substr(0, ARRcookies[i].indexOf("=")); contained_id = ARRcookies[i].substr(ARRcookies[i].indexOf("=") + 1); found_name = found_name.replace(/^\s+|\s+$/g, ""); if (found_name == cookie_name) { return decodeURIComponent(contained_id); } } } // if no iframe present and inline embed, insert the player via the embed_script if (!iframe_container && vidyard_UuvoJvaq6qTXocJKebL4uM_params.type === 'inline') { iframe_container = document.createElement("span"); iframe_container.id = 'vidyard_UuvoJvaq6qTXocJKebL4uM'; iframe_container.className = 'vidyard_player'; embed_script.parentNode.insertBefore(iframe_container, embed_script); } // Only add these ids to the url parameter if the play is not signed if (vidyard_secure_UuvoJvaq6qTXocJKebL4uM === false) { // Get cookie data/ids from various MAPs/CRMs var pardot_id = fn_getCookie("pardot"); if (pardot_id) { vidyard_UuvoJvaq6qTXocJKebL4uM_params.pardot_id = pardot_id; } var hubspot_id = fn_getCookie("hubspotutk"); if (hubspot_id) { vidyard_UuvoJvaq6qTXocJKebL4uM_params.hubspot_id = hubspot_id; } var marketo_id = fn_getCookie("_mkto_trk"); var munchkin_id = ''; munchkin_id = '273-eql-130'; if (marketo_id && munchkin_id && marketo_id.toLowerCase().indexOf(munchkin_id) > -1) { vidyard_UuvoJvaq6qTXocJKebL4uM_params.marketo_id = encodeURIComponent(marketo_id); } var dreamforce_id = fn_getCookie("vy_dreamforce"); if (dreamforce_id) { vidyard_UuvoJvaq6qTXocJKebL4uM_params.dreamforce_id = encodeURIComponent(dreamforce_id); } // Gets the vycustomid query string param, used to identify personalized videos var vycustom_id = get_parameter_by_name('vycustom_id'); if (vycustom_id !== "") { vidyard_UuvoJvaq6qTXocJKebL4uM_params.custom_id = vycustom_id; } // Gets the vyemail query string param, which connects views to an email entered var vyemail = get_parameter_by_name('vyemail'); if (vyemail !== "") { vidyard_UuvoJvaq6qTXocJKebL4uM_params.email = vyemail; } var vyac = get_parameter_by_name('vyac'); var vyplayer = get_parameter_by_name('vyplayer'); if (vyplayer === 'UuvoJvaq6qTXocJKebL4uM') { vidyard_UuvoJvaq6qTXocJKebL4uM_params.access_code = vyac; } } //Reference: http://stackoverflow.com/questions/901115/how-can-i-get-query-string-values function get_parameter_by_name(name) { name = name.replace(/[\[]/, "\\\[").replace(/[\]]/, "\\\]"); var regexS = "[\\?&]" + name + "=([^&#]*)"; var regex = new RegExp(regexS); var results = regex.exec(window.location.search); if (results == null) { return ""; } else { return results[1]; } } // Check for android or ios mobile, if found then force a lightbox embed type // and disable popouts if (navigator.userAgent.toLowerCase().match(/ip(ad|od|hone)|android/)) { vidyard_html5_UuvoJvaq6qTXocJKebL4uM = true; vidyard_UuvoJvaq6qTXocJKebL4uM_params.disable_popouts = true; } // Find the provided play button from the embed code and replace it/leave if not found function replacePlayButton() { // Since there's no solid way to replace only *this* embed's play button, // we find all buttons and update any that need updating. var buttons; if (typeof document.querySelectorAll === 'function') { buttons = document.querySelectorAll('.vidyard_wrapper .vidyard_play_button, .vidyard_wrapper .play-btn'); } else { buttons = []; // Go through *all* divs on the page to find wrappers: var divs = document.getElementsByTagName('div'); for (var i = 0; i < divs.length; i++) { var wrapper = divs[i]; if (wrapper.className === 'vidyard_wrapper') { // See if we have any buttons in here: var els = wrapper.getElementsByTagName('button'); // If there are no buttons, try divs instead: if (els.length === 0) { els = wrapper.getElementsByTagName('div'); } for (var j = 0; j < els.length; j++) { // Only update this embed, not all others if (els[j].className !== 'vidyard_play_button' && els[j].className !== 'play-btn') { continue; } buttons.push(els[j]); break; } } } } // Check each button to see if it needs replacing: for (var i = 0; i < buttons.length; i++) { var button = buttons[i]; // Don't replace buttons we've already updated: if (parseInt(button.getAttribute('data-version')) >= 1) { continue; } // Otherwise, remove this button: var wrapper = button.parentNode; wrapper.removeChild(button); // Replace with new play button: wrapper.innerHTML += ''; } } // Setup inline/lightbox embeds function create_embed() { var integration_tracking_check_retry = 10; var referringUrlSent = false; var eloquaSent = false; var integration_tracking_check = function () { if (!window.postMessage) { return; } if (!referringUrlSent && vidyard_secure_UuvoJvaq6qTXocJKebL4uM === true && vidyard_UuvoJvaq6qTXocJKebL4uM_params.referring_url) { var playerFrame = Vidyard.Helpers.getPlayerIFrame('UuvoJvaq6qTXocJKebL4uM'); var message = { 'event': 'parentReferer', 'uuid': 'UuvoJvaq6qTXocJKebL4uM', 'data': { 'value': vidyard_UuvoJvaq6qTXocJKebL4uM_params.referring_url } } if (playerFrame && window.postMessage) { playerFrame.contentWindow.postMessage(JSON.stringify(message), window.location.protocol + '//play.vidyard.com'); } } var messages = []; // Get cookie data/ids from various MAPs/CRMs if we haven't already if (!vidyard_UuvoJvaq6qTXocJKebL4uM_params.pardot_id) { var pardot_id = fn_getCookie("pardot"); if (pardot_id) { vidyard_UuvoJvaq6qTXocJKebL4uM_params.pardot_id = pardot_id; messages.push({'data': {'type': 'pardot', 'value': pardot_id }}); } } if (!vidyard_UuvoJvaq6qTXocJKebL4uM_params.hubspot_id) { var hubspot_id = fn_getCookie("hubspotutk"); if (hubspot_id) { vidyard_UuvoJvaq6qTXocJKebL4uM_params.hubspot_id = hubspot_id; messages.push({'data': {'type': 'hubspot', 'value': hubspot_id}}); } } if (!vidyard_UuvoJvaq6qTXocJKebL4uM_params.dreamforce_id) { var dreamforce_id = fn_getCookie("vy_dreamforce"); if (dreamforce_id) { dreamforce_id = encodeURIComponent(dreamforce_id); vidyard_UuvoJvaq6qTXocJKebL4uM_params.dreamforce_id = dreamforce_id; messages.push({'data': {'type': 'dreamforce', 'value': dreamforce_id}}); } } if (!vidyard_UuvoJvaq6qTXocJKebL4uM_params.marketo_id) { var marketo_id = fn_getCookie("_mkto_trk"); var munchkin_id = ''; munchkin_id = '273-eql-130'; if (marketo_id && munchkin_id && marketo_id.toLowerCase().indexOf(munchkin_id) > -1) { marketo_id = encodeURIComponent(marketo_id); vidyard_UuvoJvaq6qTXocJKebL4uM_params.marketo_id = marketo_id; messages.push({'data': {'type': 'marketo', 'value': marketo_id}}); } } // inline embeds are ready to receive api requests // lightbox will pass data through querystring params if (vidyard_UuvoJvaq6qTXocJKebL4uM_params.type === "inline" || vidyard_secure_UuvoJvaq6qTXocJKebL4uM === true) { for(var i in messages) { messages[i].event = 'associateVisitor'; messages[i].uuid = 'UuvoJvaq6qTXocJKebL4uM'; Vidyard.Helpers.getPlayerIFrame('UuvoJvaq6qTXocJKebL4uM').contentWindow.postMessage(JSON.stringify(messages[i]), window.location.protocol + '//play.vidyard.com'); } } if (integration_tracking_check_retry-- > 0) { setTimeout(integration_tracking_check, 500); } } vidyard_integration_check_UuvoJvaq6qTXocJKebL4uM = integration_tracking_check; // Display the inline or lightbox if (vidyard_UuvoJvaq6qTXocJKebL4uM_params.type === "inline") { // Load the iframe iframe_container.innerHTML = fn_vidyard_build_iframe_UuvoJvaq6qTXocJKebL4uM(false, vidyard_player_width_UuvoJvaq6qTXocJKebL4uM, vidyard_player_height_UuvoJvaq6qTXocJKebL4uM); Vidyard.Helpers.addListener( 'load', 'onload', function() { fn_vidyard_iframe_after_load_UuvoJvaq6qTXocJKebL4uM(); integration_tracking_check(); }, Vidyard.Helpers.getPlayerIFrame('UuvoJvaq6qTXocJKebL4uM') ); } else if (vidyard_UuvoJvaq6qTXocJKebL4uM_params.type === "lightbox") { // Dynamically insert CSS for the splash screen's play button var vidyard_stylesheet = [ '.vidyard_wrapper {' + 'position: relative;' + 'float: left;' + 'cursor: pointer;' + '}', '.play-btn, .vidyard_play_button {' + 'display: none;' + '}', '@media (min-width: 0) { .vidyard_wrapper img {' + 'max-width: 100%;' + '} }', '.vidyard_wrapper .play-btn {' + 'position: absolute;' + 'top: 50%;' + 'left: 50%;' + 'margin: -7.5% 0 0 -7.5%;' + 'width: 15%;' + 'height: auto;' + 'border-radius: 500px;' + 'border: none;' + 'cursor: pointer;' + 'background-color: #2e2e2e;' + 'opacity: 0.65;' + 'filter: alpha(opacity = 65);' + 'transition: opacity 0.2s linear;' + 'overflow: visible;' + 'font-size: 0px;' + 'padding: 0;' + '}', '.vidyard_wrapper .play-btn .play-btn-size {' + 'padding-top: 100%;' + 'width: 100%;' + '}', '.vidyard_wrapper .play-btn .arrow-size {' + 'position: absolute;' + 'top: 50%;' + 'left: 50%;' + 'width: 35%;' + 'height: auto;' + 'margin: -25% 0 0 -12%;' + 'overflow: hidden;' + '}', '.vidyard_wrapper .play-btn .arrow-size-ratio {' + 'padding-top: 150%;' + 'width: 100%;' + '}', '.vidyard_wrapper .play-btn .arrow {' + 'position: absolute;' + 'top: 50%;' + 'left: auto;' + 'right: 0px;' + 'bottom: auto;' + 'width: 0px;' + 'height: 0px;' + 'margin: -200px 0 -200px -300px;' + 'border: 200px solid transparent;' + 'border-left: 300px solid #ffffff;' + 'border-right: none;' + '}', '#splash-screen-wrapper:hover .play-btn,', '.vidyard_wrapper:hover .play-btn {' + 'opacity: 1;' + 'filter: alpha(opacity = 100);' + 'zoom: 1;' + '}', ''].join('\n'); fn_vidyard_create_stylesheet(vidyard_stylesheet); if (document.readyState === 'complete') { if (!vidyard_secure_UuvoJvaq6qTXocJKebL4uM) { integration_tracking_check(); } replacePlayButton(); } else { Vidyard.Helpers.addListener('load', 'onload', function() { if (!vidyard_secure_UuvoJvaq6qTXocJKebL4uM) { integration_tracking_check(); } replacePlayButton(); }); } } } create_embed(); // create an entry in the players dictionary Vidyard._players['UuvoJvaq6qTXocJKebL4uM'] = ''; }()); // Fetch Marketo lead data right when DOM loads to make it available // for form CTAs to be able to prefill or skip if known lead. Vidyard.marketoData = Vidyard.marketoData || []; // Callback for JSONP request to contactEmbed.js to fetch contact info // If the lead is known, make Lead data available to CTAs var vyContactCallback = function(data) { var message, marketoData, playerIframe; if (data === undefined || data.length <= 0) { // Marketo lead is not known to us return false; } try { marketoData = JSON.parse(data); } catch (err) { console.error("Error parsing Marketo contact.", err, data); } if (!marketoData) { return false; } // Set player param so it gets picked up by iframe url param setter vidyard_UuvoJvaq6qTXocJKebL4uM_params.marketo_lead = marketoData; // Send identifyVisitor event into Player IFrame with contact info for forms // If IFrame not yet loaded this will either get passed in through query params (lightbox) // or tried again after IFrame loads in fn_vidyard_iframe_after_load_UuvoJvaq6qTXocJKebL4uM playerIframe = Vidyard.Helpers.getPlayerIFrame('UuvoJvaq6qTXocJKebL4uM'); if ( playerIframe ) { message = {'data': {'type': 'marketo', 'value': marketoData}}; message.event = 'identifyVisitor'; message.uuid = 'UuvoJvaq6qTXocJKebL4uM'; playerIframe.contentWindow.postMessage( JSON.stringify(message), window.location.protocol + '//play.vidyard.com'); } }; (function () { function async_load() { var contactId = vidyard_UuvoJvaq6qTXocJKebL4uM_params.marketo_id; if (!contactId) { // If Marketo cookie not already on DOM, we can safely assume any // cookie written subsequently will not be known to us return false; } // Inject script tag into DOM to trigger JSONP request var url = window.location.protocol + '//play.vidyard.com' + '/organizations/9052/contacts/' + encodeURIComponent(contactId) + '/marketoContactEmbed.js'; var script = document.createElement('script'); script.src = url + '?callback=vyContactCallback'; document.getElementsByTagName('head')[0].appendChild(script); } if (document.readyState === 'complete') { async_load(); } else { Vidyard.Helpers.addListener('DOMContentLoaded', 'onload', async_load); } })(); // END Marketo lead pre-fetch // Creates & returns the iframe html with all the proper widths, heights and query strings function fn_vidyard_build_iframe_UuvoJvaq6qTXocJKebL4uM(lightbox, iframe_width, iframe_height) { var max_cta_width = 0; if (lightbox) { vidyard_UuvoJvaq6qTXocJKebL4uM_params.autoplay = true; } var referring_url = encodeURIComponent(document.referrer); if (referring_url) { vidyard_UuvoJvaq6qTXocJKebL4uM_params.referring_url = referring_url; } var iframe_resizer = "100%"; // Increase the size of the iframe if there are popout CTA's present & not disabled if (max_cta_width !== 0) { if (!vidyard_UuvoJvaq6qTXocJKebL4uM_params.disable_ctas && !vidyard_UuvoJvaq6qTXocJKebL4uM_params.disable_popouts) { iframe_resizer = iframe_width; iframe_resizer += max_cta_width + 31; iframe_resizer += 'px'; } } // IE compatibility mode has difficulty matching responsive iframe code unless you manually trigger the re-paint: if (document.documentMode === 7) { var resizeQueued = false; var ie7RepaintIframe = function() { var iframe = Vidyard.Helpers.getPlayerIFrame('UuvoJvaq6qTXocJKebL4uM'); if (!iframe) { return window.detachEvent('onresize', ie7OnResize); } var from = iframe.style.position || 'relative'; iframe.style.position = from === 'relative' ? 'absolute' : 'relative'; setTimeout(function() { iframe.style.position = from; }, 1); resizeQueued = false; }; var ie7OnResize = function() { if (resizeQueued === false) { resizeQueued = setTimeout(ie7RepaintIframe, 50); } }; window.attachEvent('onresize', ie7OnResize); // Try binding to the iframe load as well to make sure it shows then without a resize: setTimeout(function() { var iframe = Vidyard.Helpers.getPlayerIFrame('UuvoJvaq6qTXocJKebL4uM'); if (!iframe) { return setTimeout(ie7OnResize, 1000); } iframe.attachEvent('onload', ie7OnResize); }, 300); } var query_params_string = ''; if (vidyard_secure_UuvoJvaq6qTXocJKebL4uM === true) { query_params_string = vidyard_UuvoJvaq6qTXocJKebL4uM_raw_params; } else { for (var param in vidyard_UuvoJvaq6qTXocJKebL4uM_params) { var param_value = vidyard_UuvoJvaq6qTXocJKebL4uM_params[param]; if (param_value === true) { param_value = '1'; } else if (param_value === false) { param_value = '0'; } query_params_string += encodeURIComponent(param) + '=' + encodeURIComponent(param_value) + '&'; } } // Fixes incorrect iframe width on IOS when the device is rotated var is_ios_mobile = navigator.userAgent.toLowerCase().match(/ip(ad|od|hone)/); var ios_width_fix = is_ios_mobile ? 'max-width: 100%; min-width: 100%; width: 100vw;' : ''; return ''; } // --- If the browser is FF, reload the iframe with the given id function fn_vidyard_iframe_after_load_UuvoJvaq6qTXocJKebL4uM() { var _theframe = Vidyard.Helpers.getPlayerIFrame('UuvoJvaq6qTXocJKebL4uM'); if (_theframe) { _theframe.style.opacity = '1'; _theframe.focus(); _theframe.contentWindow.focus(); // If this is a secure lightbox embed, we have to start checking for integrations now if (vidyard_secure_UuvoJvaq6qTXocJKebL4uM === true && vidyard_UuvoJvaq6qTXocJKebL4uM_params.type === 'lightbox') { vidyard_integration_check_UuvoJvaq6qTXocJKebL4uM(); } // Pass Marketo Lead data into Player iFrame // There still exists a small race condition if player is started before contact callback // this event will reach CtaManager AFTER showCta has already been triggered. if (vidyard_UuvoJvaq6qTXocJKebL4uM_params.marketo_lead) { var message = {'data': {'type': 'marketo', 'value': vidyard_UuvoJvaq6qTXocJKebL4uM_params.marketo_lead }}; message.event = 'identifyVisitor'; message.uuid = 'UuvoJvaq6qTXocJKebL4uM'; Vidyard.Helpers.getPlayerIFrame('UuvoJvaq6qTXocJKebL4uM') .contentWindow.postMessage(JSON.stringify(message), window.location.protocol + '//play.vidyard.com'); } } } function fn_vidyard_create_stylesheet(cssString) { var styleElement = document.createElement('style'); styleElement.setAttribute('type', 'text/css'); if (styleElement.styleSheet) { // IE styleElement.styleSheet.cssText = cssString; } else { // All others var textElement = document.createTextNode(cssString); styleElement.appendChild(textElement); } var headElement = document.getElementsByTagName('head')[0]; headElement.appendChild(styleElement); } // --- Begin Embed JS (resizing, opening/closing, fading in/out) --- function fn_vidyard_UuvoJvaq6qTXocJKebL4uM() { var vidyard = {}; vidyard.box = function() { var j, m, b, g, s, iframe_settings, vidyard_tinner = 0; return { show:function(initial_iframe_settings) { // If already playing a lightbox player, should not play another one. if (Vidyard.currently_playing) { return; } Vidyard.currently_playing = true; iframe_settings = { opacity: 95, close: 1, animate: 1, fixed: 1, maskid: '', boxid: '', topsplit: 2, url: 0, post: 0, height: 0, width: 0, html: 0, iframe: 0 }; // Set all the properties of for(s in initial_iframe_settings){ iframe_settings[s] = initial_iframe_settings[s]; } var width_height = this.lock_to_aspect_ratio(iframe_settings.width, iframe_settings.height, (319 + (vidyard_player_width_UuvoJvaq6qTXocJKebL4uM / 5))); iframe_settings.width = width_height[0]; iframe_settings.height = width_height[1]; if(!vidyard_tinner) { // This is the only way to define pseudo class styles programatically without using javascript events var vidyard_stylesheet2 = [ '.vidyard_tclose { position:absolute; top:0px; left:2px; width:30px; height:30px; cursor:pointer; background-image:url(https://assets.vidyard.com/play/images/close-313a6414369d14892a8fe7f0a04b12c9.png); background-repeat:no-repeat; background-position: 2px 2px; background-color: rgba(0,0,0,0); border: none; opacity: 0.75; padding: 0; }', '.vidyard_tclose:hover, .vidyard_tclose:focus { background-position: 2px -28px; opacity: 1; }'].join('\n'); fn_vidyard_create_stylesheet(vidyard_stylesheet2); Vidyard.Helpers.remove(window.vidyard_tbox); Vidyard.Helpers.remove(window.vidyard_tmask); // Div which contains the vidyard iframe / tinner vidyard_tbox = document.createElement('div'); vidyard_tbox.className = 'vidyard_tbox'; vidyard_tbox.style.cssText = 'display:none; padding:14px 17px; z-index:900;'; // Black side bars around player, directly inside vidyard_tbox vidyard_tinner = document.createElement('div'); vidyard_tinner.className = 'vidyard_tinner'; vidyard_tinner.style.cssText = "padding:0; background:#000000 url(https://assets.vidyard.com/play/images/loader_black-0a8751483323d07f74488e1f3e8e8ac7.gif) no-repeat 50% 50%;"; // Directly within vidyard_tinner vidyard_tcontent = document.createElement('div'); vidyard_tcontent.className ='vidyard_tcontent'; // Dark overlay over site vidyard_tmask = document.createElement('div'); vidyard_tmask.className = 'vidyard_tmask'; vidyard_tmask.style.cssText = 'position:fixed; width:100%; overflow:hidden; height:100%; display:none; top:0px; left:0px; background-color:#111; z-index:800;'; // Little close circle on top left of player vidyard_tclose = document.createElement('button'); vidyard_tclose.className ='vidyard_tclose'; vidyard_tclose.iframe_settings = 0; vidyard_tclose.setAttribute('aria-label', 'Close Player' ); vidyard_tclose.setAttribute('role', 'button'); // Add/create heierarchy of divs document.body.appendChild(vidyard_tmask); document.body.appendChild(vidyard_tbox); vidyard_tbox.appendChild(vidyard_tinner); vidyard_tinner.appendChild(vidyard_tcontent); vidyard_tmask.onclick = vidyard_tclose.onclick = vidyard.box.hide; Vidyard.Helpers.addListener('resize', 'onresize', vidyard.box.resize); } else { vidyard_tbox.style.display = 'none'; clearTimeout(vidyard_tinner.ah); if(vidyard_tclose.iframe_settings) { vidyard_tinner.removeChild(vidyard_tclose); vidyard_tclose.iframe_settings = 0; } } vidyard_tinner.id = iframe_settings.boxid; vidyard_tmask.id = iframe_settings.maskid; vidyard_tbox.style.position = iframe_settings.fixed ? 'fixed' : 'absolute'; // Setup tinner depending on if animations are going to be used if(iframe_settings.html && !iframe_settings.animate) { vidyard_tinner.style.backgroundImage = 'none'; vidyard_tcontent.innerHTML = iframe_settings.html; vidyard_tcontent.style.display = ''; vidyard_tinner.style.width = iframe_settings.width ? iframe_settings.width + 'px' : 'auto'; vidyard_tinner.style.height = iframe_settings.height ? iframe_settings.height + 'px' : 'auto'; } else { vidyard_tcontent.style.display = 'none'; if(!iframe_settings.animate && iframe_settings.width && iframe_settings.height) { vidyard_tinner.style.width= iframe_settings.width + 'px'; vidyard_tinner.style.height = iframe_settings.height + 'px'; } else { vidyard_tinner.style.width = vidyard_tinner.style.height = '100px'; } } this.create_focus_intercepts(); // Fade in the mask & setup the iframe to play on complete this.start_alpha_animation(vidyard_tmask, 1, iframe_settings.opacity); document.onkeyup = vidyard.box.escape; }, lock_to_aspect_ratio: function(w, h, minimum_width) { var v_box = vidyard.box; var viewport_width = this.width() - 60; var viewport_height = this.height() - 60; var aspect_ratio = w / h; // If neither width or height is larger than viewport, do nothing if(w < viewport_width && h < viewport_height) { return [w, h]; } w = v_box.locked_width(w); h = w / aspect_ratio; if(h > viewport_height) { h = v_box.locked_height(h); w = h * aspect_ratio; } return [w, h]; }, locked_width: function(w) { var v_box = vidyard.box; if(w > v_box.width() - 60) { w = v_box.width() - 60; } return w; }, locked_height: function(h) { var v_box = vidyard.box; if(h > v_box.height() - 60) { h = v_box.height() - 60; } return h; }, // Fills the iframe with content OR calls set_tinner_size fill_iframe: function(settings_html_url, has_element, use_post_request, should_animate, width, height) { if(has_element) { if(iframe_settings.image) { // Fill the iframe with a splash screen var i = new Image(); i.onload = function() { width = width || i.width; height = height || i.height; vidyard.box.set_tinner_size(i, should_animate, width, height); } i.src = iframe_settings.image; } else if(iframe_settings.iframe) { this.set_tinner_size(fn_vidyard_build_iframe_UuvoJvaq6qTXocJKebL4uM(true, width, height), should_animate, width, height); } else { // Fill the iframe with an email gate var x = window.XMLHttpRequest ? new XMLHttpRequest() : new ActiveXObject('Microsoft.XMLHTTP'); x.onreadystatechange = function() { if(x.readyState == 4 && x.status == 200) { vidyard_tinner.style.backgroundImage = ''; vidyard.box.set_tinner_size(x.responseText, should_animate, width, height); } } //Either get or set the email gate form if(use_post_request) { x.open('POST', settings_html_url, true); x.setRequestHeader('Content-type', 'application/x-www-form-urlencoded'); x.send(use_post_request); } else { x.open('GET', settings_html_url, true); x.send(null); } } } else { this.set_tinner_size(settings_html_url, should_animate, width, height); } }, // This finds the target tinner width/height then starts the animation process set_tinner_size: function(settings_html_url, should_animate, width, height) { if (typeof settings_html_url == 'object') { vidyard_tcontent.appendChild(settings_html_url); } else { vidyard_tcontent.innerHTML = settings_html_url; } var iframe = Vidyard.Helpers.getPlayerIFrame('UuvoJvaq6qTXocJKebL4uM'); var iframeIsLoaded = false; var iframeLoadedCallback = function() { if (iframeIsLoaded) { return; } iframeIsLoaded = true; fn_vidyard_iframe_after_load_UuvoJvaq6qTXocJKebL4uM(); }; var windowMessageCallback = function(postMessageEvent) { try { // Invoke the callback on the first message from the iframe if (postMessageEvent.source !== iframe.contentWindow) { return; } iframeLoadedCallback(); // If this fails, just rely on the iframe load event to invoke the callback } catch(e) {} }; Vidyard.Helpers.addListener('load', 'onload', iframeLoadedCallback, iframe); Vidyard.Helpers.addListener('message', 'onmessage', windowMessageCallback); var x = vidyard_tinner.style.width; var y = vidyard_tinner.style.height; if (!width || !height) { vidyard_tinner.style.width = width ? width + 'px' : ''; vidyard_tinner.style.height = height ? height + 'px' : ''; vidyard_tcontent.style.display = ''; if (!height) { height = parseInt(vidyard_tcontent.offsetHeight); } if (!width) { width = parseInt(vidyard_tcontent.offsetwidth); } vidyard_tcontent.style.display = 'none'; } vidyard_tinner.style.width = x; vidyard_tinner.style.height = y; this.start_tinner_animation(should_animate, width, height); }, // setups tinner animation or just auto snaps to the correct width/height start_tinner_animation: function(should_animate, width, height) { if (should_animate) { clearInterval(vidyard_tinner.si); var width_moving_outwards = parseInt(vidyard_tinner.style.width) > width ? -1 : 1; var height_moving_outwards = parseInt(vidyard_tinner.style.height) > height ? -1 : 1; // Update tinner size every 20ms vidyard_tinner.si = setInterval(function() { vidyard.box.animate_tinner_size(width, width_moving_outwards, height, height_moving_outwards); }, 20); } else { vidyard_tinner.style.backgroundImage = 'none'; if(iframe_settings.close) { vidyard_tinner.appendChild(vidyard_tclose); vidyard_tclose.v = 1; } vidyard_tinner.style.width = width + 'px'; vidyard_tinner.style.height = height + 'px'; vidyard_tcontent.style.display = ''; this.set_absolute_top_left(); if (iframe_settings.openjs) { iframe_settings.openjs(); } } }, // Animate tinner to the correct size (width/height_moving_outwards is whether or not the box is expanding) animate_tinner_size: function(target_width, width_moving_outwards, target_height, height_moving_outwards) { var width = parseInt(vidyard_tinner.style.width); var height = parseInt(vidyard_tinner.style.height); if(this.within_target(width, 2, target_width) && this.within_target(height, 2, target_height)) { // Done animating make video visible and show the close button clearInterval(vidyard_tinner.si); vidyard_tinner.style.backgroundImage = 'none'; vidyard_tcontent.style.display = 'block'; if (iframe_settings.close) { vidyard_tinner.appendChild(vidyard_tclose); vidyard_tclose.v = 1; } if (iframe_settings.openjs) { iframe_settings.openjs(); } } else { // Not done animating, update width/ height if(!this.within_target(width, 2, target_width)) { vidyard_tinner.style.width = (target_width - Math.floor(Math.abs(target_width - width) * .6) * width_moving_outwards) + 'px'; } if(!this.within_target(height, 2, target_height)) { vidyard_tinner.style.height = (target_height - Math.floor(Math.abs(target_height - height) * .6) * height_moving_outwards) + 'px'; } this.set_absolute_top_left(); } }, escape: function(e) { e = e || window.event; if(e.keyCode == 27) { vidyard.box.hide(); } }, hide: function() { vidyard.box.start_alpha_animation(vidyard_tbox, -1, 0); document.onkeypress = null; Vidyard.currently_playing = false; Vidyard.Helpers.removeListener('resize', 'onresize', vidyard.box.resize); Vidyard.Helpers.removeListener('focusin', 'onfocusin', this.move_focus_to_iframe, vidyard_tfocus_top, true); Vidyard.Helpers.removeListener('focusin', 'onfocusin', this.move_focus_to_iframe, vidyard_tfocus_lightbox, true); Vidyard.Helpers.removeListener('blur', 'onblur', this.move_focus_to_iframe_body, window, true); Vidyard.Helpers.remove(window.vidyard_tfocus_top); Vidyard.Helpers.remove(window.vidyard_tfocus_lightbox); }, // Fired on every resize event resize: function() { var v_box = vidyard.box; var width_height = v_box.lock_to_aspect_ratio( vidyard_player_width_UuvoJvaq6qTXocJKebL4uM, vidyard_player_height_UuvoJvaq6qTXocJKebL4uM, 319 + (vidyard_player_width_UuvoJvaq6qTXocJKebL4uM / 5) ); iframe_settings.width = width_height[0]; iframe_settings.height = width_height[1]; var vidyard_iframe = Vidyard.Helpers.getPlayerIFrame('UuvoJvaq6qTXocJKebL4uM'); var vidyard_span = document.getElementById('vidyard_span_UuvoJvaq6qTXocJKebL4uM'); // Increase the size of the iframe if there are CTA's present & not disabled var iframe_width = iframe_settings.width; vidyard_iframe.style.width = iframe_width + 'px'; vidyard_tinner.style.width = iframe_settings.width + 'px'; vidyard_tbox.style.width = iframe_settings.width + 28 + 'px'; vidyard_tcontent.style.width = iframe_settings.width + 'px'; vidyard_span.style.width = iframe_settings.width + 'px'; vidyard_tinner.style.height = iframe_settings.height + 'px'; vidyard_tbox.style.height = iframe_settings.height + 28 + 'px'; vidyard_tcontent.style.height = iframe_settings.height + 'px'; vidyard_span.style.height = iframe_settings.height + 'px'; vidyard_iframe.style.height = iframe_settings.height + 'px'; vidyard.box.set_absolute_top_left(); }, set_absolute_top_left: function() { var top_offset; if (typeof iframe_settings.top != 'undefined') { top_offset = iframe_settings.top; } else { top_offset = (this.height() / iframe_settings.topsplit) - (vidyard_tbox.offsetHeight / 2); } if (!iframe_settings.fixed && !iframe_settings.top) { top_offset += this.top(); } vidyard_tbox.style.top = top_offset + 'px'; if (typeof iframe_settings.left != 'undefined') { vidyard_tbox.style.left = iframe_settings.left + 'px'; } else { vidyard_tbox.style.left = (this.width() / 2) - (vidyard_tbox.offsetWidth / 2) + 'px'; } if(parseInt(vidyard_tbox.style.left, 10) < 16) { vidyard_tbox.style.left = '16px'; } if(parseInt(vidyard_tbox.style.top, 10) < 16) { vidyard_tbox.style.top = '16px'; } }, start_alpha_animation: function(element_to_fade, fading_in, target_alpha) { clearInterval(element_to_fade.ai); if (fading_in) { element_to_fade.style.opacity = 0; element_to_fade.style.filter = 'alpha(opacity=0)'; element_to_fade.style.display = 'block'; vidyard.box.set_absolute_top_left(); } // Update the alpha of element_to_fade every 20ms element_to_fade.ai = setInterval(function() { vidyard.box.fade_element(element_to_fade, fading_in, target_alpha); }, 20); }, fade_element: function(element_to_fade, fading_in, target_alpha) { var old_opacity = Math.round(element_to_fade.style.opacity * 100); if (old_opacity == target_alpha) { clearInterval(element_to_fade.ai); if (fading_in == -1) { // Not fading in? then are fading out, destroy iframe content etc element_to_fade.style.display = 'none'; Vidyard.Helpers.getPlayerIFrame('UuvoJvaq6qTXocJKebL4uM').src = ''; if(element_to_fade == vidyard_tbox) { vidyard.box.start_alpha_animation(vidyard_tmask, -1, 0); } else { vidyard_tcontent.innerHTML = vidyard_tinner.style.backgroundImage = ''; } } else { if(element_to_fade == vidyard_tmask) { this.start_alpha_animation(vidyard_tbox, 1, 100); } else { // vidyard_tbox is done fading vidyard_tbox.style.filter = ''; vidyard.box.fill_iframe(iframe_settings.html || iframe_settings.url, iframe_settings.url || iframe_settings.iframe || iframe_settings.image, iframe_settings.post, iframe_settings.animate, iframe_settings.width, iframe_settings.height); } } } else { // Not done fading, update alpha var new_opacity = target_alpha - Math.floor(Math.abs(target_alpha - old_opacity) * .5) * fading_in; element_to_fade.style.opacity = new_opacity / 100; element_to_fade.style.filter = 'alpha(opacity=' + new_opacity + ')'; } }, // The below functions just get whichever version of top, width, height that is available top: function() { return document.documentElement.scrollTop || document.body.scrollTop; }, width: function() { if(typeof(window.innerWidth) === 'number') { // Modern Browsers return window.innerWidth; } else if(document.documentElement && document.documentElement.clientHeight) { // IE6 and above return document.documentElement.clientWidth; } else if(document.body && document.body.clientWidth) { // IE 4 and some other versions of IE return document.body.clientWidth; } }, height: function() { if(typeof(window.innerHeight) === 'number') { // Modern Browsers return window.innerHeight; } else if(document.documentElement && document.documentElement.clientHeight) { // IE6 and above return document.documentElement.clientHeight; } else if(document.body && document.body.clientHeight) { // IE 4 and some other versions of IE return document.body.clientHeight; } }, within_target: function(base, range, target) { return (base + range) > target && (base - range) < target; }, largest_document_measurement: function(get_height) { var doc_body = document.body, doc_element = document.documentElement; if (get_height) { return Math.max(Math.max(doc_body.scrollHeight, doc_element.scrollHeight), Math.max(doc_body.clientHeight, doc_element.clientHeight)); } return Math.max(Math.max(doc_body.scrollWidth, doc_element.scrollWidth), Math.max(doc_body.clientWidth, doc_element.clientWidth)); }, create_focus_intercepts: function() { // Create an empty div element (vidyard_tfocus_top) with tabindex=0 at the top of the body, with position="fixed". // Doing captures the tabbing as the focus goes from the address bar to the first element in the body, // and with fixed positioning, prevents the page from scrolling up. (Interrupting the focus event could not prevent this.) // When tabbing to vidyard_tfocus_top, it will shift the focus to the lightbox iframe. if (!document.querySelector('.vidyard_tfocus_top')) { vidyard_tfocus_top = document.createElement('div'); vidyard_tfocus_top.className = "vidyard_tfocus_top"; vidyard_tfocus_top.style.position = "fixed"; vidyard_tfocus_top.tabIndex = 0; } // Create another empty div element (vidyard_tfocus_start) with the same goal, except to prevent // the page from scrolling when you shift-tab from the iframe out to the parent frame. // This element will prevent the page from scrolling and keep the focus in the lightbox. if (!document.querySelector('.vidyard_tfocus_lightbox')) { vidyard_tfocus_lightbox = document.createElement('div'); vidyard_tfocus_lightbox.className = "vidyard_tfocus_lightbox"; vidyard_tfocus_lightbox.tabIndex = 0; } // Insert vidyard_tfocus_top as the first element in the body. document.body.insertBefore(vidyard_tfocus_top, document.body.firstChild); // Insert vidyard_tfocus_lightbox as the first element before the lightbox vidyard_tbox.insertBefore(vidyard_tfocus_lightbox, vidyard_tbox.firstChild); Vidyard.Helpers.addListener('focusin', 'onfocusin', this.move_focus_to_iframe, vidyard_tfocus_top, true); Vidyard.Helpers.addListener('focusin', 'onfocusin', this.move_focus_to_iframe, vidyard_tfocus_lightbox, true); Vidyard.Helpers.addListener('focusin', 'onfocusin', this.move_focus_to_iframe_from_body, window, true); // In case focus does go outside vidyard_tbox vidyard_tfocus_lightbox.focus(); }, move_focus_to_iframe: function(event) { var vidyard_iframe = Vidyard.Helpers.getPlayerIFrame('UuvoJvaq6qTXocJKebL4uM'); if (vidyard_iframe && window.postMessage) { vidyard_iframe.focus(); var message = { 'event': 'resetFocus', 'uuid': 'UuvoJvaq6qTXocJKebL4uM' }; vidyard_iframe.contentWindow.postMessage(JSON.stringify(message), window.location.protocol + '//play.vidyard.com'); } }, move_focus_to_iframe_from_body: function(event) { if (event.target !== window && !vidyard_tbox.contains(event.target)) { vidyard.box.move_focus_to_iframe(event); } } } }(); vidyard.box.show({ iframe: '#', width: vidyard_player_width_UuvoJvaq6qTXocJKebL4uM, height: vidyard_player_height_UuvoJvaq6qTXocJKebL4uM, animate: !vidyard_html5_UuvoJvaq6qTXocJKebL4uM, fixed: true }); } | __label__pos | 0.992617 |
Home | SCIENCE | Data Mart
Data Mart
Posted On : 15.12.2016 07:43 am
1 Dependent and Independent Data Marts 2 Steps in Implementing a Data Mart 3 Data Mart issues
Data Mart
A data mart is a simple form of a data warehouse that is focused on a single subject (or functional area), such as sales, finance or marketing. Data marts are often built and controlled by a single department within an organization. Given their single-subject focus, data marts usually draw data from only a few sources. The sources could be internal operational systems, a central data warehouse, or external data.[1]
1 Dependent and Independent Data Marts
There are two basic types of data marts: dependent and independent. The categorization is based primarily on the data source that feeds the data mart. Dependent data marts draw data from a central data warehouse that has already been created. Independent data marts, in contrast, are standalone systems built by drawing data directly from operational or external sources of data, or both.
The main difference between independent and dependent data marts is how you populate the data mart; that is, how you get data out of the sources and into the data mart. This step, called the Extraction-Transformation-and Loading (ETL) process, involves moving data from operational systems, filtering it, and loading it into the data mart.With dependent data marts, this process is somewhat simplified because formatted and summarized (clean) data has already been loaded into the central data warehouse. The ETL process for dependent data marts is mostly a process of identifying the right subset of data relevant to the chosen data mart subject and moving a copy of it, perhaps in a summarized form.
With independent data marts, however, you must deal with all aspects of the ETL process, much as you do with a central data warehouse. The number of sources is likely to be fewer and the amount of data associated with the data mart is less than the warehouse, given your focus on a single subject.The motivations behind the creation of these two types of data marts are also typically different. Dependent data marts are usually built to achieve improved performance and availability, better control, and lower telecommunication costs resulting from local access of data relevant to a specific department. The creation of independent data marts is often driven by the need to have a solution within a shorter time.
2 Steps in Implementing a Data Mart
Simply stated, the major steps in implementing a data mart are to design the schema, construct the physical storage, populate the data mart with data from source systems, access it to make informed decisions, and manage it over time.
Designing
Constructing
Populating
Accessing
Managing
Designing
The design step is first in the data mart process. This step covers all of the tasks from initiating the request for a data mart through gathering information about the requirements, and developing the logical and physical design of the data mart. The design step involves the following tasks:
Gathering the business and technical requirements
Identifying data sources
Selecting the appropriate subset of data
Designing the logical and physical structure of the data mart
Constructing
This step includes creating the physical database and the logical structures associated with the data mart to provide fast and efficient access to the data. This step involves the following tasks:
Creating the physical database and storage structures, such as tablespaces, associated with the data mart
Creating the schema objects, such as tables and indexes defined in the design step
Determining how best to set up the tables and the access structures
Populating
The populating step covers all of the tasks related to getting the data from the source, cleaning it up, modifying it to the right format and level of detail, and moving it into the data mart. More formally stated, the populating step involves the following tasks:
Mapping data sources to target data structures
Extracting data
Cleansing and transforming the data
Loading data into the data mart
Creating and storing metadata
4. Accessing
The accessing step involves putting the data to use: querying the data, analyzing it, creating reports, charts, and graphs, and publishing these. Typically, the end user uses a graphical front-end tool to submit queries to the database and display the results of the queries. The accessing step requires that you perform the following tasks:
Set up an intermediate layer for the front-end tool to use. This layer, the metalayer, translates database structures and object names into business terms, so that the end user can interact with the data mart using terms that relate to the business function.
Maintain and manage these business interfaces.
Set up and manage database structures, like summarized tables, that help queries submitted through the front-end tool execute quickly and efficiently.
Managing
This step involves managing the data mart over its lifetime. In this step, you perform management tasks such as the following:
Providing secure access to the data
Managing the growth of the data
Optimizing the system for better performance
Ensuring the availability of data even with system failures
3 Data Mart issues
Data mart functionality -- -- > the capabilities of data marts have increased with the growth in their popularity
Data mart size -- -- > the performance deteriorates as data marts grow in size, so need to reduce the size of data marts to gain improvements in performance
Data mart load performance -- -- > two critical components: end-user response time and data loading performanceto increment DB updating so that only cells affected by the change are updated and not the entire MDDB structure.
Last 30 days 33 views
Related words :
What is Data Mart Define Data Mart Definition of Data Mart where how meaning of Data Mart lecturing notes for Data Mart lecture notes question and answer for Data Mart answer Data Mart study material Data Mart assignment Data Mart reference description of Data Mart explanation of Data Mart brief detail of Data Mart easy explanation solution Data Mart wiki Data Mart wikipedia how why is who were when is when did where did Data Mart list of Data Mart school assignment college assignment Data Mart college notes school notes kids with diagram or figure or image difference between Data Mart www.readorrefer.in - Read Or Refer
TOP MENU
OTHER SUGEST TOPIC
Recent New Topics : | __label__pos | 0.670362 |
Goffi's cp, a fancy file copier
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
227 lines
7.9 KiB
1. #!/usr/bin/python
2. # -*- coding: utf-8 -*-
3. """
4. gcp: Goffi's CoPier
5. Copyright (C) 2010, 2011 Jérôme Poisson <[email protected]>
6. This program is free software: you can redistribute it and/or modify
7. it under the terms of the GNU General Public License as published by
8. the Free Software Foundation, either version 3 of the License, or
9. (at your option) any later version.
10. This program is distributed in the hope that it will be useful,
11. but WITHOUT ANY WARRANTY; without even the implied warranty of
12. MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13. GNU General Public License for more details.
14. You should have received a copy of the GNU General Public License
15. along with this program. If not, see <http://www.gnu.org/licenses/>.
16. """
17. from __future__ import with_statement
18. import tempfile
19. import unittest
20. from os import getcwd, chdir, system, mkdir, makedirs, listdir
21. from os.path import join, isdir
22. from shutil import rmtree
23. from random import randrange
24. from hashlib import sha1
25. #size shorcuts
26. S10K = 1024 * 10
27. S100K = 1024 * 100
28. S1M = 1024 * 1024
29. S10M = 1024 * 1024 * 10
30. S100M = 1024 * 1024 * 100
31. def sha1sum(filename, buf_size=4096):
32. """Return the SHA1 hash of a file
33. @param filename: path to the file
34. @param buf_size: size of the buffer to use for calculation"""
35. csum = sha1()
36. with open(filename) as fd:
37. data = fd.read(buf_size)
38. while data:
39. csum.update(data)
40. data = fd.read(buf_size)
41. return csum.digest()
42. def dirCheck(dir_path):
43. """Recursively calculate SHA1 sum of a dir
44. @param path: path of the dir to check
45. @return: a dict in the form [{filepath: sum,...}]
46. """
47. def recursive_sum(directory, result):
48. for current_path in listdir(directory):
49. full_path = join(directory, current_path)
50. if isdir(full_path):
51. recursive_sum(full_path, result)
52. else:
53. result[full_path] = sha1sum(full_path)
54. result = {}
55. _ori_dir = getcwd()
56. chdir(dir_path)
57. recursive_sum(".", result)
58. chdir(_ori_dir)
59. return result
60. #def makeRandomFile(path, size, buf_size=4096):
61. # """Create a fake file
62. # @param path: where the file is created
63. # @param size: size of the file to create in bytes"""
64. # def seq(size):
65. # return ''.join(chr(randrange(256)) for i in range(size))
66. # fd = open(path, 'w')
67. # for byte in range(size//buf_size):
68. # fd.write(seq(buf_size))
69. # fd.write(seq(size%buf_size))
70. # fd.close()
71. def makeRandomFile(path, size=S10K, buf_size=4096):
72. """Create a fake file using /dev/urandom
73. @param path: where the file must be created
74. @param size: size of the file to create in bytes"""
75. source = open('/dev/urandom','r')
76. dest = open(path, 'w')
77. for byte in range(size//buf_size):
78. dest.write(source.read(buf_size))
79. dest.write(source.read(size%buf_size))
80. dest.close()
81. def makeTestDir(path):
82. """Helper method to easily create a test dir
83. @param path: where the dir must be created"""
84. for i in range(2):
85. subdir = join(path,'subdir_%d' % i)
86. makedirs(subdir)
87. for j in range(2):
88. makeRandomFile(join(subdir, 'file_%d' % j), S10K)
89. for i in range(2):
90. makeRandomFile(join(path,'file_%d' % i), S10K)
91. class TestCopyCases(unittest.TestCase):
92. """Test basic copy use cases, using gcp externally
93. gcp must be available in the PATH"""
94. #TODO: check journal
95. def setUp(self):
96. self.ori_dir = getcwd()
97. self.tmp_dir = tempfile.mkdtemp()
98. chdir(self.tmp_dir)
99. def tearDown(self):
100. chdir(self.ori_dir)
101. rmtree(self.tmp_dir)
102. def test_one_file_copy(self):
103. """Copy one file and test the result"""
104. makeRandomFile('file_1', S10K)
105. ori_sum = sha1sum('file_1')
106. ret = system("gcp file_1 file_2")
107. self.assertEqual(ret,0)
108. dest_sum = sha1sum('file_2')
109. self.assertEqual(ori_sum, dest_sum)
110. def test_one_file_copy_already_exists(self):
111. """Check that an existing file is not overwritten"""
112. makeRandomFile('file_1', S10K)
113. makeRandomFile('file_2', S10K)
114. file_2_sum = sha1sum('file_2')
115. ret = system("gcp file_1 file_2")
116. self.assertNotEqual(ret,0)
117. file_2_sum_bis = sha1sum('file_2')
118. self.assertEqual(file_2_sum, file_2_sum_bis)
119. def test_one_file_copy_already_exists_force(self):
120. """Check that an existing file is overwritten with --force"""
121. makeRandomFile('file_1', S10K)
122. makeRandomFile('file_2', S10K)
123. file_1_sum = sha1sum('file_1')
124. ret = system("gcp -f file_1 file_2")
125. self.assertEqual(ret,0)
126. file_2_sum_bis = sha1sum('file_2')
127. self.assertEqual(file_1_sum, file_2_sum_bis)
128. def test_one_dir_copy(self):
129. """Check copy of one dir to a non existant path"""
130. makeTestDir('dir_1')
131. check_1 = dirCheck('dir_1')
132. ret = system("gcp -r dir_1 dir_2")
133. self.assertEqual(ret,0)
134. check_2 = dirCheck('dir_2')
135. self.assertEqual(check_1, check_2)
136. def test_one_dir_copy_nocopy(self):
137. """Check that a dir is not copied without the recursive option"""
138. makeTestDir('dir_1')
139. check_before = dirCheck('.')
140. ret = system("gcp dir_1 dir_2")
141. self.assertEqual(ret,0)
142. check_after = dirCheck('.')
143. self.assertEqual(check_before, check_after)
144. def test_one_dir_copy_existing_dest(self):
145. """Check that a dir is copied inside an existing destination"""
146. makeTestDir('dir_1')
147. mkdir('dir_2')
148. check_1 = dirCheck('dir_1')
149. ret = system("gcp -r dir_1 dir_2")
150. self.assertEqual(ret,0)
151. self.assertEqual(listdir('dir_2'), ['dir_1'])
152. check_2 = dirCheck('dir_2/dir_1')
153. self.assertEqual(check_1, check_2)
154. def test_mixt_copy_existing_dest(self):
155. """Check that a mixt copy (files + dir) to an existing dest work as expected"""
156. for i in range(2):
157. makeRandomFile('file_%d' % i, S10K)
158. makeTestDir('dir_%d' % i)
159. check_1 = dirCheck('.')
160. mkdir('dest_dir')
161. ret = system("gcp -r file_0 file_1 dir_0 dir_1 dest_dir")
162. self.assertEqual(ret,0)
163. check_2 = dirCheck('dest_dir')
164. self.assertEqual(check_1, check_2)
165. def test_mixt_copy_nonexisting_dest(self):
166. """Check that a mixt copy (files + dir) to an non existing dest work as expected
167. /!\\ the behavious is different of the one of cp in this case ! (cp doesn't copy at all, while gcp create the dest)"""
168. for i in range(2):
169. makeRandomFile('file_%d' % i, S10K)
170. makeTestDir('dir_%d' % i)
171. check_1 = dirCheck('.')
172. ret = system("gcp -r file_0 file_1 dir_0 dir_1 dest_dir")
173. self.assertEqual(ret,0)
174. check_2 = dirCheck('dest_dir')
175. self.assertEqual(check_1, check_2)
176. def test_mixt_copy_existing_dest_nonrecursive(self):
177. """Check that a mixt copy (files + dir) to an existing dest without the recursive option work as expected"""
178. for i in range(2):
179. makeRandomFile('file_%d' % i, S10K)
180. makeTestDir('dir_%d' % i)
181. mkdir('dest_dir')
182. ret = system("gcp file_0 file_1 dir_0 dir_1 dest_dir")
183. self.assertEqual(ret,0)
184. self.assertEqual(set(listdir('dest_dir')), set(['file_0', 'file_1']))
185. self.assertEqual(sha1sum('file_0'), sha1sum('dest_dir/file_0'))
186. self.assertEqual(sha1sum('file_1'), sha1sum('dest_dir/file_1'))
187. def test_mixt_copy_nonexisting_dest_nonrecursive(self):
188. """Check that a mixt copy (files + dir) to an existing dest without the recursive option work as expected"""
189. for i in range(2):
190. makeRandomFile('file_%d' % i, S10K)
191. makeTestDir('dir_%d' % i)
192. check_before = dirCheck('.')
193. ret = system("gcp file_0 file_1 dir_0 dir_1 dest_dir")
194. self.assertEqual(ret >> 8, 1)
195. check_after = dirCheck('.')
196. self.assertEqual(check_before, check_after)
197. if __name__ == '__main__':
198. unittest.main() | __label__pos | 0.988192 |
1 /*
2 * Copyright (c) 2015, 2016 Oracle and/or its affiliates. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 *
8 * - Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 *
11 * - Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * - Neither the name of Oracle nor the names of its
16 * contributors may be used to endorse or promote products derived
17 * from this software without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
20 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
21 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
23 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
24 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
25 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
26 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
27 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
28 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
29 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 */
31
32 #include "jni.h"
33 #include "imageDecompressor.hpp"
34 #include "endian.hpp"
35 #ifdef WIN32
36 #include <windows.h>
37 #else
38 #include <dlfcn.h>
39 #endif
40
41 typedef jboolean (JNICALL *ZipInflateFully_t)(void *inBuf, jlong inLen,
42 void *outBuf, jlong outLen, char **pmsg);
43 static ZipInflateFully_t ZipInflateFully = NULL;
44
45 #ifndef WIN32
46 #define JNI_LIB_PREFIX "lib"
47 #ifdef __APPLE__
48 #define JNI_LIB_SUFFIX ".dylib"
49 #else
50 #define JNI_LIB_SUFFIX ".so"
51 #endif
52 #endif
53
54 /**
55 * Return the address of the entry point named in the zip shared library.
56 * @param name - the name of the entry point
57 * @return the address of the entry point or NULL
58 */
59 static void* findEntry(const char* name) {
60 void *addr = NULL;
61 #ifdef WIN32
62 HMODULE handle = GetModuleHandle("zip.dll");
63 if (handle == NULL) {
64 return NULL;
65 }
66 addr = (void*) GetProcAddress(handle, name);
67 return addr;
68 #else
69 addr = dlopen(JNI_LIB_PREFIX "zip" JNI_LIB_SUFFIX, RTLD_GLOBAL|RTLD_LAZY);
70 if (addr == NULL) {
71 return NULL;
72 }
73 addr = dlsym(addr, name);
74 return addr;
75 #endif
76 }
77
78 /*
79 * Initialize the array of decompressors.
80 */
81 int ImageDecompressor::_decompressors_num = 0;
82 ImageDecompressor** ImageDecompressor::_decompressors = NULL;
83 void ImageDecompressor::image_decompressor_init() {
84 if (_decompressors == NULL) {
85 ZipInflateFully = (ZipInflateFully_t) findEntry("ZIP_InflateFully");
86 assert(ZipInflateFully != NULL && "ZIP decompressor not found.");
87 _decompressors_num = 2;
88 _decompressors = new ImageDecompressor*[_decompressors_num];
89 _decompressors[0] = new ZipDecompressor("zip");
90 _decompressors[1] = new SharedStringDecompressor("compact-cp");
91 }
92 }
93
94 void ImageDecompressor::image_decompressor_close() {
95 delete[] _decompressors;
96 }
97
98 /*
99 * Locate decompressor.
100 */
101 ImageDecompressor* ImageDecompressor::get_decompressor(const char * decompressor_name) {
102 image_decompressor_init();
103 for (int i = 0; i < _decompressors_num; i++) {
104 ImageDecompressor* decompressor = _decompressors[i];
105 assert(decompressor != NULL && "Decompressors not initialized.");
106 if (strcmp(decompressor->get_name(), decompressor_name) == 0) {
107 return decompressor;
108 }
109 }
110 assert(false && "No decompressor found.");
111 return NULL;
112 }
113
114 // Sparc to read unaligned content
115 // u8 l = (*(u8*) ptr);
116 // If ptr is not aligned, sparc will fail.
117 u8 ImageDecompressor::getU8(u1* ptr, Endian *endian) {
118 u8 ret;
119 if (endian->is_big_endian()) {
120 ret = (u8)ptr[0] << 56 | (u8)ptr[1] << 48 | (u8)ptr[2]<<40 | (u8)ptr[3]<<32 |
121 ptr[4]<<24 | ptr[5]<<16 | ptr[6]<<8 | ptr[7];
122 } else {
123 ret = ptr[0] | ptr[1]<<8 | ptr[2]<<16 | ptr[3]<<24 | (u8)ptr[4]<<32 |
124 (u8)ptr[5]<<40 | (u8)ptr[6]<<48 | (u8)ptr[7]<<56;
125 }
126 return ret;
127 }
128
129 u4 ImageDecompressor::getU4(u1* ptr, Endian *endian) {
130 u4 ret;
131 if (endian->is_big_endian()) {
132 ret = ptr[0] << 24 | ptr[1]<<16 | (ptr[2]<<8) | ptr[3];
133 } else {
134 ret = ptr[0] | ptr[1]<<8 | (ptr[2]<<16) | ptr[3]<<24;
135 }
136 return ret;
137 }
138
139 /*
140 * Decompression entry point. Called from ImageFileReader::get_resource.
141 */
142 void ImageDecompressor::decompress_resource(u1* compressed, u1* uncompressed,
143 u8 uncompressed_size, const ImageStrings* strings, Endian *endian) {
144 bool has_header = false;
145 u1* decompressed_resource = compressed;
146 u1* compressed_resource = compressed;
147 // Resource could have been transformed by a stack of decompressors.
148 // Iterate and decompress resources until there is no more header.
149 do {
150 ResourceHeader _header;
151 u1* compressed_resource_base = compressed_resource;
152 _header._magic = getU4(compressed_resource, endian);
153 compressed_resource += 4;
154 _header._size = getU8(compressed_resource, endian);
155 compressed_resource += 8;
156 _header._uncompressed_size = getU8(compressed_resource, endian);
157 compressed_resource += 8;
158 _header._decompressor_name_offset = getU4(compressed_resource, endian);
159 compressed_resource += 4;
160 _header._decompressor_config_offset = getU4(compressed_resource, endian);
161 compressed_resource += 4;
162 _header._is_terminal = *compressed_resource;
163 compressed_resource += 1;
164 has_header = _header._magic == ResourceHeader::resource_header_magic;
165 if (has_header) {
166 // decompressed_resource array contains the result of decompression
167 decompressed_resource = new u1[(size_t) _header._uncompressed_size];
168 // Retrieve the decompressor name
169 const char* decompressor_name = strings->get(_header._decompressor_name_offset);
170 assert(decompressor_name && "image decompressor not found");
171 // Retrieve the decompressor instance
172 ImageDecompressor* decompressor = get_decompressor(decompressor_name);
173 assert(decompressor && "image decompressor not found");
174 // Ask the decompressor to decompress the compressed content
175 decompressor->decompress_resource(compressed_resource, decompressed_resource,
176 &_header, strings);
177 if (compressed_resource_base != compressed) {
178 delete[] compressed_resource_base;
179 }
180 compressed_resource = decompressed_resource;
181 }
182 } while (has_header);
183 memcpy(uncompressed, decompressed_resource, (size_t) uncompressed_size);
184 delete decompressed_resource;
185 }
186
187 // Zip decompressor
188
189 void ZipDecompressor::decompress_resource(u1* data, u1* uncompressed,
190 ResourceHeader* header, const ImageStrings* strings) {
191 char* msg = NULL;
192 jboolean res = ZipDecompressor::decompress(data, header->_size, uncompressed,
193 header->_uncompressed_size, &msg);
194 assert(res && "decompression failed");
195 }
196
197 jboolean ZipDecompressor::decompress(void *in, u8 inSize, void *out, u8 outSize, char **pmsg) {
198 return (*ZipInflateFully)(in, inSize, out, outSize, pmsg);
199 }
200
201 // END Zip Decompressor
202
203 // Shared String decompressor
204
205 // array index is the constant pool tag. value is size.
206 // eg: array[5] = 8; means size of long is 8 bytes.
207 const u1 SharedStringDecompressor::sizes[] = {
208 0, 0, 0, 4, 4, 8, 8, 2, 2, 4, 4, 4, 4, 0, 0, 3, 2, 0, 4
209 };
210 /**
211 * Recreate the class by reconstructing the constant pool.
212 */
213 void SharedStringDecompressor::decompress_resource(u1* data,
214 u1* uncompressed_resource,
215 ResourceHeader* header, const ImageStrings* strings) {
216 u1* uncompressed_base = uncompressed_resource;
217 u1* data_base = data;
218 int header_size = 8; // magic + major + minor
219 memcpy(uncompressed_resource, data, header_size + 2); //+ cp count
220 uncompressed_resource += header_size + 2;
221 data += header_size;
222 u2 cp_count = Endian::get_java(data);
223 data += 2;
224 for (int i = 1; i < cp_count; i++) {
225 u1 tag = *data;
226 data += 1;
227 switch (tag) {
228
229 case externalized_string:
230 { // String in Strings table
231 *uncompressed_resource = 1;
232 uncompressed_resource += 1;
233 int k = decompress_int(data);
234 const char * string = strings->get(k);
235 int str_length = (int) strlen(string);
236 Endian::set_java(uncompressed_resource, str_length);
237 uncompressed_resource += 2;
238 memcpy(uncompressed_resource, string, str_length);
239 uncompressed_resource += str_length;
240 break;
241 }
242 // Descriptor String has been split and types added to Strings table
243 case externalized_string_descriptor:
244 {
245 *uncompressed_resource = 1;
246 uncompressed_resource += 1;
247 int descriptor_index = decompress_int(data);
248 int indexes_length = decompress_int(data);
249 u1* length_address = uncompressed_resource;
250 uncompressed_resource += 2;
251 int desc_length = 0;
252 const char * desc_string = strings->get(descriptor_index);
253 if (indexes_length > 0) {
254 u1* indexes_base = data;
255 data += indexes_length;
256 char c = *desc_string;
257 do {
258 *uncompressed_resource = c;
259 uncompressed_resource++;
260 desc_length += 1;
261 /*
262 * Every L character is the marker we are looking at in order
263 * to reconstruct the descriptor. Each time an L is found, then
264 * we retrieve the couple token/token at the current index and
265 * add it to the descriptor.
266 * "(L;I)V" and "java/lang","String" couple of tokens,
267 * this becomes "(Ljava/lang/String;I)V"
268 */
269 if (c == 'L') {
270 int index = decompress_int(indexes_base);
271 const char * pkg = strings->get(index);
272 int str_length = (int) strlen(pkg);
273 // the case where we have a package.
274 // reconstruct the type full name
275 if (str_length > 0) {
276 int len = str_length + 1;
277 char* fullpkg = new char[len];
278 char* pkg_base = fullpkg;
279 memcpy(fullpkg, pkg, str_length);
280 fullpkg += str_length;
281 *fullpkg = '/';
282 memcpy(uncompressed_resource, pkg_base, len);
283 uncompressed_resource += len;
284 delete[] pkg_base;
285 desc_length += len;
286 } else { // Empty package
287 // Nothing to do.
288 }
289 int classIndex = decompress_int(indexes_base);
290 const char * clazz = strings->get(classIndex);
291 int clazz_length = (int) strlen(clazz);
292 memcpy(uncompressed_resource, clazz, clazz_length);
293 uncompressed_resource += clazz_length;
294 desc_length += clazz_length;
295 }
296 desc_string += 1;
297 c = *desc_string;
298 } while (c != '\0');
299 } else {
300 desc_length = (int) strlen(desc_string);
301 memcpy(uncompressed_resource, desc_string, desc_length);
302 uncompressed_resource += desc_length;
303 }
304 Endian::set_java(length_address, desc_length);
305 break;
306 }
307
308 case constant_utf8:
309 { // UTF-8
310 *uncompressed_resource = tag;
311 uncompressed_resource += 1;
312 u2 str_length = Endian::get_java(data);
313 int len = str_length + 2;
314 memcpy(uncompressed_resource, data, len);
315 uncompressed_resource += len;
316 data += len;
317 break;
318 }
319
320 case constant_long:
321 case constant_double:
322 {
323 i++;
324 }
325 default:
326 {
327 *uncompressed_resource = tag;
328 uncompressed_resource += 1;
329 int size = sizes[tag];
330 memcpy(uncompressed_resource, data, size);
331 uncompressed_resource += size;
332 data += size;
333 }
334 }
335 }
336 u8 remain = header->_size - (int)(data - data_base);
337 u8 computed = (u8)(uncompressed_resource - uncompressed_base) + remain;
338 if (header->_uncompressed_size != computed)
339 printf("Failure, expecting %llu but getting %llu\n", header->_uncompressed_size,
340 computed);
341 assert(header->_uncompressed_size == computed &&
342 "Constant Pool reconstruction failed");
343 memcpy(uncompressed_resource, data, (size_t) remain);
344 }
345
346 /*
347 * Decompress integers. Compressed integers are negative.
348 * If positive, the integer is not decompressed.
349 * If negative, length extracted from the first byte, then reconstruct the integer
350 * from the following bytes.
351 * Example of compression: 1 is compressed on 1 byte: 10100001
352 */
353 int SharedStringDecompressor::decompress_int(unsigned char*& value) {
354 int len = 4;
355 int res = 0;
356 char b1 = *value;
357 if (is_compressed((signed char)b1)) { // compressed
358 len = get_compressed_length(b1);
359 char clearedValue = b1 &= 0x1F;
360 if (len == 1) {
361 res = clearedValue;
362 } else {
363 res = (clearedValue & 0xFF) << 8 * (len - 1);
364 for (int i = 1; i < len; i++) {
365 res |= (value[i]&0xFF) << 8 * (len - i - 1);
366 }
367 }
368 } else {
369 res = (value[0] & 0xFF) << 24 | (value[1]&0xFF) << 16 |
370 (value[2]&0xFF) << 8 | (value[3]&0xFF);
371 }
372 value += len;
373 return res;
374 }
375 // END Shared String decompressor | __label__pos | 0.999864 |
Take the 2-minute tour ×
Stack Overflow is a question and answer site for professional and enthusiast programmers. It's 100% free, no registration required.
What is the equivalent of these operations on ios3
[NSOperationQueue mainQueue];
[NSOperationQueue currentQueue];
share|improve this question
2 Answers 2
There really wasn't an equivalent for +currentQueue. For +mainQueue you'd call
- (void)performSelectorOnMainThread:(SEL)aSelector withObject:(id)arg waitUntilDone:(BOOL)wait
with a method that contained the work that needed to be done on the main thread.
share|improve this answer
There is no other alternative other than rolling your own.
Something like this might work: (untested)
@interface NSOperationQueue(MainQueueAdditions)
+ (NSOperationQueue *) mainQueue;
@end
@implementation NSOperationQueue(MainQueueAdditions)
+ (NSOperationQueue *) mainQueue {
static NSOperationQueue *queue = nil;
if(queue == nil) queue = [[NSMainOperationQueue alloc] init];
return queue;
}
@end
@interface NSMainOperationQueue : NSOperationQueue {}
@end
@implementation NSMainOperationQueue
- (void) addOperation:(NSOperation *) operation {
[self queueOperationInternal:operation];
}
- (void) addOperationWithBlock:(void (^)(void))block {
[self queueOperationInternal:[NSBlockOperation blockOperationWithBlock:block]];
}
- (void) queueOperationInternal:(NSOperation *) operation {
[[NSRunLoop mainRunLoop] performSelector:@selector(start) target:operation argument:nil order:-[operation queuePriority] modes:[NSArray arrayWithObject:NSRunLoopCommonModes]];
}
@end
share|improve this answer
Your Answer
discard
By posting your answer, you agree to the privacy policy and terms of service. | __label__pos | 0.972209 |
Click here to Skip to main content
13,804,385 members
Click here to Skip to main content
Stats
725.4K views
29.9K downloads
281 bookmarked
Posted 14 Sep 2010
Licenced CPOL
PVS.AVPlayer - MCI Audio and Video Library
, 7 Aug 2018
Windows Media Control Interface (MCI) library with many added features
PVS.AVPlayer
PVS.AVPlayer .NET 2.0
PVS.AVPlayer.XML
PVS.AVPlayer .NET 3.0
PVS.AVPlayer.XML
PVS.AVPlayer .NET 3.5
PVS.AVPlayer.XML
PVS.AVPlayer .NET 4.0
PVS.AVPlayer.XML
PVS.AVPlayer .NET 4.5
PVS.AVPlayer .NET 4.5.1
PVS.AVPlayer.XML
PVS.AVPlayer .NET 4.5.2
PVS.AVPlayer.XML
PVS.AVPlayer.XML
PVS.AVPlayer .NET 4.6
PVS.AVPlayer.XML
PVS.AVPlayer.dll
PVS.AVPlayer.XML
PVS.AVPlayer.dll
PVS.AVPlayer.XML
PVS.AVPlayer.dll
PVS.AVPlayer.XML
PVS.AVPlayer.dll
PVS.AVPlayer.XML
PVS.AVPlayer.dll
PVS.AVPlayer.XML
PVS.AVPlayer.dll
PVS.AVPlayer.XML
PVS.AVPlayer.dll
PVS.AVPlayer.XML
PVS.AVPlayer .NET 4.6.1
PVS.AVPlayer.dll
PVS.AVPlayer.XML
PVS.AVPlayer .NET 4.6.2
PVS.AVPlayer.dll
PVS.AVPlayer.XML
PVS.AVPlayer.dll
PVS.AVPlayer.XML
PVS.AVPlayer .NET 4.7
PVS.AVPlayer .NET 4.7.1
PVS.AVPlayer.dll
PVS.AVPlayer.XML
PVS.AVPlayer .NET 4.7.2
PVS.AVPlayer.dll
PVS.AVPlayer.XML
PVS.AVPlayer.dll
PVS.AVPlayer.XML
PVS.AVPlayer All Source Code
AVPlayerExample
AVPlayerExample
AVPlayerExample.csproj.user
bin
Debug
PVS.AVPlayer.XML
Release
Dialogs
Display Overlays
obj
Debug
Release
x86
Debug
Release
Properties
Resources
Crystal Italic1.ttf
WingDings3a.ttf
Voice Recorder
FolderView
FolderView
bin
Debug
PVS.AVPlayer.XML
Release
FolderView.csproj.user
obj
Release
x86
Debug
Release
Properties
Resources
Crystal Italic1.ttf
PVS.AVPlayer
AVPlayerExample.csproj.user
PVS.AVPlayer.dll
PVS.AVPlayer.XML
Custom Items
Native Methods
Bob.png
Crystal Italic1.ttf
Dial Green 2.png
Dial Green 4.png
Dial Green.png
Dial Red 2.png
Dial Red.png
media7.ico
media7a.ico
Media8.ico
Media8a.ico
VU Meter.png
WingDings3a.ttf
Sound Recorder
Various
About Dialog
PVS.AVPlayer.dll
PVS.AVPlayer.XML
Custom Items
FolderView.csproj.user
Debug
Bob.png
Crystal Italic1.ttf
media7a.ico
media7b.ico
Media8a.ico
Media8b.ico
Subtitles Overlay
Various
How To (C#)
PVSAVPlayerHowTo
bin
Debug
PVS.AVPlayer.dll
PVS.AVPlayer.XML
Release
obj
Debug
Release
Properties
How To (VB.NET)
PVSAVPlayerHowToVB
bin
Debug
PVS.AVPlayer.dll
PVS.AVPlayer.XML
Release
My Project
Application.myapp
obj
Debug
Release
PVSAVPlayerHowTo.vbproj.user
PVS.AVPlayer Examples
AVPlayerExample.ex_
FolderView.ex_
AVPlayerExample.exe
FolderView.exe
PVS.AVPlayer.dll
using System.ComponentModel;
using System.Windows.Forms;
namespace AVPlayerExample
{
partial class Form1
{
/// <summary>
/// Required designer variable.
/// </summary>
private IContainer components = null;
#region Windows Form Designer generated code
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
{
this.components = new System.ComponentModel.Container();
this.leftFramePanel = new System.Windows.Forms.Panel();
this.speedPanel = new System.Windows.Forms.Panel();
this.speedSlider = new AVPlayerExample.CustomSlider2();
this.sliderMenu = new System.Windows.Forms.ContextMenuStrip(this.components);
this.sliderMenuItem1 = new System.Windows.Forms.ToolStripMenuItem();
this.sliderMenuItem2 = new System.Windows.Forms.ToolStripMenuItem();
this.sliderMenuItem3 = new System.Windows.Forms.ToolStripMenuItem();
this.speedLabelPanel = new AVPlayerExample.CustomPanel();
this.speedTextBox = new System.Windows.Forms.MaskedTextBox();
this.speedLight = new AVPlayerExample.LightPanel();
this.speedLabelText = new System.Windows.Forms.Label();
this.repeatPanel = new System.Windows.Forms.Panel();
this.repeatLight = new AVPlayerExample.LightPanel();
this.repeatButton = new AVPlayerExample.DropDownButton();
this.repeatMenu = new System.Windows.Forms.ContextMenuStrip(this.components);
this.repeatOneMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.repeatAllMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.toolStripSeparator18 = new System.Windows.Forms.ToolStripSeparator();
this.shuffleMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.toolStripSeparator19 = new System.Windows.Forms.ToolStripSeparator();
this.repeatOffMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.repeatMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.nextFromLabel = new AVPlayerExample.HeadLabel();
this.endPositionMediaTextBox = new System.Windows.Forms.MaskedTextBox();
this.startPositionMediaTextBox = new System.Windows.Forms.MaskedTextBox();
this.currentFromLabel = new AVPlayerExample.HeadLabel();
this.endPositionTextBox = new System.Windows.Forms.MaskedTextBox();
this.startPositionTextBox = new System.Windows.Forms.MaskedTextBox();
this.displayModePanel = new System.Windows.Forms.Panel();
this.overlayMenuLight = new AVPlayerExample.LightPanel();
this.overlayLight = new AVPlayerExample.LightPanel();
this.displayOverlayButton = new AVPlayerExample.DropDownButton();
this.displayOverlayMenu = new System.Windows.Forms.ContextMenuStrip(this.components);
this.overlayModeToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.videoMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.displayMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.overlayHoldMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.toolStripSeparator5 = new System.Windows.Forms.ToolStripSeparator();
this.messageMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.scribbleMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.toolStripSeparator24 = new System.Windows.Forms.ToolStripSeparator();
this.tilesMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.bouncingMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.toolStripSeparator23 = new System.Windows.Forms.ToolStripSeparator();
this.PiPMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.subtitlesMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.toolStripSeparator25 = new System.Windows.Forms.ToolStripSeparator();
this.zoomSelectMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.videoWallMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.toolStripSeparator21 = new System.Windows.Forms.ToolStripSeparator();
this.MP3CoverMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.MP3KaraokeMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.toolStripSeparator22 = new System.Windows.Forms.ToolStripSeparator();
this.bigTimeMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.statusInfoMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.toolStripSeparator6 = new System.Windows.Forms.ToolStripSeparator();
this.overlayOffMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.displayOverlayMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.fullScreenLight = new AVPlayerExample.LightPanel();
this.fullScreenModeButton = new AVPlayerExample.DropDownButton();
this.fullScreenModeMenu = new System.Windows.Forms.ContextMenuStrip(this.components);
this.fullScreenFormMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.fullScreenParentMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.fullScreenDisplayMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.toolStripSeparator3 = new System.Windows.Forms.ToolStripSeparator();
this.fullScreenOffMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.fullScreenModeMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.displayModeLight = new AVPlayerExample.LightPanel();
this.displayModeButton = new AVPlayerExample.DropDownButton();
this.displayModeMenu = new System.Windows.Forms.ContextMenuStrip(this.components);
this.displayModeMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.displayModeLabel = new AVPlayerExample.HeadLabel();
this.overlayMenuButton = new AVPlayerExample.CustomButton();
this.playPanel = new System.Windows.Forms.Panel();
this.stopButton = new AVPlayerExample.CustomButton();
this.nextButton = new AVPlayerExample.CustomButton();
this.previousButton = new AVPlayerExample.CustomButton();
this.pauseButton = new AVPlayerExample.CustomButton();
this.playButtonLight = new AVPlayerExample.LightPanel();
this.playButton = new AVPlayerExample.DropDownButton();
this.playMenu = new System.Windows.Forms.ContextMenuStrip(this.components);
this.playListMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.newPlayListMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.toolStripSeparator2 = new System.Windows.Forms.ToolStripSeparator();
this.openPlayListMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.addPlayListMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.toolStripSeparator4 = new System.Windows.Forms.ToolStripSeparator();
this.savePlayListMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.toolStripSeparator16 = new System.Windows.Forms.ToolStripSeparator();
this.addMediaFilesMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.addMediaURLMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.menuSeparator1 = new System.Windows.Forms.ToolStripSeparator();
this.playDisplayMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.titlePanel = new AVPlayerExample.CustomPanel();
this.webSiteLabel = new System.Windows.Forms.Label();
this.nameLabel = new System.Windows.Forms.Label();
this.toolTip1 = new System.Windows.Forms.ToolTip(this.components);
this.pictureBox1 = new System.Windows.Forms.PictureBox();
this.screenCopyMenu = new System.Windows.Forms.ContextMenuStrip(this.components);
this.copyMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.copyModeMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.copyModeMenu = new System.Windows.Forms.ContextMenuStrip(this.components);
this.videoCopyModeMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.displayCopyModeMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.parentCopyModeMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.formCopyModeMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.screenCopyModeMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.toolStripSeparator1 = new System.Windows.Forms.ToolStripSeparator();
this.openCopyMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.openWithCopyMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.toolStripSeparator12 = new System.Windows.Forms.ToolStripSeparator();
this.clearCopyMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.screencopyMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.displayPanel = new System.Windows.Forms.Panel();
this.displayMenu = new System.Windows.Forms.ContextMenuStrip(this.components);
this.previousMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.nextMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.pauseMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.stopMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.toolStripSeparator8 = new System.Windows.Forms.ToolStripSeparator();
this.toolStripSeparator10 = new System.Windows.Forms.ToolStripSeparator();
this.overlayMenuMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.toolStripSeparator9 = new System.Windows.Forms.ToolStripSeparator();
this.toolStripSeparator20 = new System.Windows.Forms.ToolStripSeparator();
this.videoSizeMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.zoomVideoMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.zoomInMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.zoomOutToolMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.moveVideoMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.moveUpMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.moveDownMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.toolStripSeparator32 = new System.Windows.Forms.ToolStripSeparator();
this.moveLeftMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.moveRightMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.stretchVideoMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.stretchHeightMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.shrinkHeightMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.toolStripSeparator33 = new System.Windows.Forms.ToolStripSeparator();
this.stretchWidthMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.shrinkWidthMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.toolStripSeparator17 = new System.Windows.Forms.ToolStripSeparator();
this.voiceRecorderMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.showRecorderMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.showPlayerMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.toolStripSeparator27 = new System.Windows.Forms.ToolStripSeparator();
this.showAllMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.hideAllMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.toolStripSeparator30 = new System.Windows.Forms.ToolStripSeparator();
this.closeRecorderMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.toolStripSeparator31 = new System.Windows.Forms.ToolStripSeparator();
this.systemMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.systemDisplayMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.toolStripSeparator26 = new System.Windows.Forms.ToolStripSeparator();
this.systemSoundMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.systemMixerMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.preferencesMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.toolStripSeparator11 = new System.Windows.Forms.ToolStripSeparator();
this.quitMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.shuttleSlider = new AVPlayerExample.CustomSlider2();
this.copyModeLabel = new System.Windows.Forms.Label();
this.stretchRightButton = new AVPlayerExample.CustomButton();
this.stretchLeftButton = new AVPlayerExample.CustomButton();
this.stretchDownButton = new AVPlayerExample.CustomButton();
this.stretchUpButton = new AVPlayerExample.CustomButton();
this.moveRightButton = new AVPlayerExample.CustomButton();
this.moveLeftButton = new AVPlayerExample.CustomButton();
this.moveDownButton = new AVPlayerExample.CustomButton();
this.moveUpButton = new AVPlayerExample.CustomButton();
this.zoomOutButton = new AVPlayerExample.CustomButton();
this.zoomInButton = new AVPlayerExample.CustomButton();
this.balanceSlider = new AVPlayerExample.CustomSlider2();
this.volumeSlider = new AVPlayerExample.CustomSlider2();
this.audioBalanceLabelText = new System.Windows.Forms.Label();
this.audioVolumeLabelText = new System.Windows.Forms.Label();
this.positionSlider = new AVPlayerExample.CustomSlider();
this.positionSliderMenu = new System.Windows.Forms.ContextMenuStrip(this.components);
this.sliderAlwaysVisibleMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.sliderShowsProgressMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.sliderSeekLiveUpdateMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.toolStripSeparator13 = new System.Windows.Forms.ToolStripSeparator();
this.markStartPositionMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.markEndPositionMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.toolStripSeparator14 = new System.Windows.Forms.ToolStripSeparator();
this.mark1MenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.goToMark1MenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.toolStripSeparator34 = new System.Windows.Forms.ToolStripSeparator();
this.mark2MenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.goToMark2MenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.toolStripSeparator35 = new System.Windows.Forms.ToolStripSeparator();
this.goToStartMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.positionLabel2 = new System.Windows.Forms.Label();
this.positionLabel1 = new System.Windows.Forms.Label();
this.displayParentPanel = new System.Windows.Forms.Panel();
this.positionSliderPanel = new AVPlayerExample.SliderPanel();
this.rightFramePanel = new System.Windows.Forms.Panel();
this.shuttlePanel = new System.Windows.Forms.Panel();
this.shuttleLabel = new AVPlayerExample.HeadLabel();
this.sceencopyPanel = new System.Windows.Forms.Panel();
this.copyLabelPanel = new AVPlayerExample.CustomPanel();
this.copyModeLabelText = new System.Windows.Forms.Label();
this.zoomPanel = new System.Windows.Forms.Panel();
this.headLabel1 = new AVPlayerExample.HeadLabel();
this.moveLabel = new AVPlayerExample.HeadLabel();
this.zoomLabel = new AVPlayerExample.HeadLabel();
this.audioPanel = new System.Windows.Forms.Panel();
this.balanceLabelPanel = new AVPlayerExample.CustomPanel();
this.audioBalanceLabel = new System.Windows.Forms.Label();
this.volumeLabelPanel = new AVPlayerExample.CustomPanel();
this.volumeLight = new AVPlayerExample.LightPanel();
this.audioVolumeLabel = new System.Windows.Forms.Label();
this.playSubMenu = new System.Windows.Forms.ContextMenuStrip(this.components);
this.playMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.toolStripSeparator28 = new System.Windows.Forms.ToolStripSeparator();
this.openLocationMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.propertiesMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.toolStripSeparator29 = new System.Windows.Forms.ToolStripSeparator();
this.removeFromListMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.toolStripSeparator7 = new System.Windows.Forms.ToolStripSeparator();
this.sortListMenuItem = new System.Windows.Forms.ToolStripMenuItem();
this.leftFramePanel.SuspendLayout();
this.speedPanel.SuspendLayout();
((System.ComponentModel.ISupportInitialize)(this.speedSlider)).BeginInit();
this.sliderMenu.SuspendLayout();
this.speedLabelPanel.SuspendLayout();
this.repeatPanel.SuspendLayout();
this.repeatMenu.SuspendLayout();
this.displayModePanel.SuspendLayout();
this.displayOverlayMenu.SuspendLayout();
this.fullScreenModeMenu.SuspendLayout();
this.playPanel.SuspendLayout();
this.playMenu.SuspendLayout();
this.titlePanel.SuspendLayout();
((System.ComponentModel.ISupportInitialize)(this.pictureBox1)).BeginInit();
this.screenCopyMenu.SuspendLayout();
this.copyModeMenu.SuspendLayout();
this.displayMenu.SuspendLayout();
((System.ComponentModel.ISupportInitialize)(this.shuttleSlider)).BeginInit();
((System.ComponentModel.ISupportInitialize)(this.balanceSlider)).BeginInit();
((System.ComponentModel.ISupportInitialize)(this.volumeSlider)).BeginInit();
((System.ComponentModel.ISupportInitialize)(this.positionSlider)).BeginInit();
this.positionSliderMenu.SuspendLayout();
this.displayParentPanel.SuspendLayout();
this.positionSliderPanel.SuspendLayout();
this.rightFramePanel.SuspendLayout();
this.shuttlePanel.SuspendLayout();
this.sceencopyPanel.SuspendLayout();
this.copyLabelPanel.SuspendLayout();
this.zoomPanel.SuspendLayout();
this.audioPanel.SuspendLayout();
this.balanceLabelPanel.SuspendLayout();
this.volumeLabelPanel.SuspendLayout();
this.playSubMenu.SuspendLayout();
this.SuspendLayout();
//
// leftFramePanel
//
this.leftFramePanel.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom)
| System.Windows.Forms.AnchorStyles.Left)));
this.leftFramePanel.BackColor = System.Drawing.Color.FromArgb(((int)(((byte)(18)))), ((int)(((byte)(18)))), ((int)(((byte)(18)))));
this.leftFramePanel.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
this.leftFramePanel.Controls.Add(this.speedPanel);
this.leftFramePanel.Controls.Add(this.repeatPanel);
this.leftFramePanel.Controls.Add(this.displayModePanel);
this.leftFramePanel.Controls.Add(this.playPanel);
this.leftFramePanel.Controls.Add(this.titlePanel);
this.leftFramePanel.Location = new System.Drawing.Point(7, 8);
this.leftFramePanel.Name = "leftFramePanel";
this.leftFramePanel.Size = new System.Drawing.Size(154, 503);
this.leftFramePanel.TabIndex = 0;
//
// speedPanel
//
this.speedPanel.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom)
| System.Windows.Forms.AnchorStyles.Left)));
this.speedPanel.BackColor = System.Drawing.Color.FromArgb(((int)(((byte)(32)))), ((int)(((byte)(32)))), ((int)(((byte)(32)))));
this.speedPanel.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
this.speedPanel.Controls.Add(this.speedSlider);
this.speedPanel.Controls.Add(this.speedLabelPanel);
this.speedPanel.Location = new System.Drawing.Point(6, 417);
this.speedPanel.Name = "speedPanel";
this.speedPanel.Size = new System.Drawing.Size(140, 78);
this.speedPanel.TabIndex = 4;
//
// speedSlider
//
this.speedSlider.AutoSize = false;
this.speedSlider.ContextMenuStrip = this.sliderMenu;
this.speedSlider.Location = new System.Drawing.Point(2, 31);
this.speedSlider.Name = "speedSlider";
this.speedSlider.Size = new System.Drawing.Size(135, 45);
this.speedSlider.TabIndex = 1;
this.speedSlider.TickStyle = System.Windows.Forms.TickStyle.Both;
this.toolTip1.SetToolTip(this.speedSlider, "Player.SpeedSlider - sets the player\'s media playback speed.");
this.speedSlider.Value = 5;
//
// sliderMenu
//
this.sliderMenu.Items.AddRange(new System.Windows.Forms.ToolStripItem[] {
this.sliderMenuItem1,
this.sliderMenuItem2,
this.sliderMenuItem3});
this.sliderMenu.Name = "sliderMenu";
this.sliderMenu.ShowImageMargin = false;
this.sliderMenu.Size = new System.Drawing.Size(56, 70);
this.sliderMenu.Opening += new System.ComponentModel.CancelEventHandler(this.sliderMenu_Opening);
//
// sliderMenuItem1
//
this.sliderMenuItem1.Name = "sliderMenuItem1";
this.sliderMenuItem1.Size = new System.Drawing.Size(55, 22);
this.sliderMenuItem1.Text = "1";
this.sliderMenuItem1.Click += new System.EventHandler(this.sliderMenuItem1_Click);
//
// sliderMenuItem2
//
this.sliderMenuItem2.Name = "sliderMenuItem2";
this.sliderMenuItem2.Size = new System.Drawing.Size(55, 22);
this.sliderMenuItem2.Text = "2";
this.sliderMenuItem2.Click += new System.EventHandler(this.sliderMenuItem2_Click);
//
// sliderMenuItem3
//
this.sliderMenuItem3.Name = "sliderMenuItem3";
this.sliderMenuItem3.Size = new System.Drawing.Size(55, 22);
this.sliderMenuItem3.Text = "3";
this.sliderMenuItem3.Click += new System.EventHandler(this.sliderMenuItem3_Click);
//
// speedLabelPanel
//
this.speedLabelPanel.Controls.Add(this.speedTextBox);
this.speedLabelPanel.Controls.Add(this.speedLight);
this.speedLabelPanel.Controls.Add(this.speedLabelText);
this.speedLabelPanel.Location = new System.Drawing.Point(9, 8);
this.speedLabelPanel.Name = "speedLabelPanel";
this.speedLabelPanel.Size = new System.Drawing.Size(121, 22);
this.speedLabelPanel.TabIndex = 0;
//
// speedTextBox
//
this.speedTextBox.BackColor = System.Drawing.Color.FromArgb(((int)(((byte)(40)))), ((int)(((byte)(40)))), ((int)(((byte)(40)))));
this.speedTextBox.BorderStyle = System.Windows.Forms.BorderStyle.None;
this.speedTextBox.ForeColor = System.Drawing.Color.FromArgb(((int)(((byte)(189)))), ((int)(((byte)(159)))), ((int)(((byte)(87)))));
this.speedTextBox.Location = new System.Drawing.Point(92, 4);
this.speedTextBox.Mask = "0.00";
this.speedTextBox.Name = "speedTextBox";
this.speedTextBox.Size = new System.Drawing.Size(23, 13);
this.speedTextBox.TabIndex = 2;
this.speedTextBox.Text = "100";
this.toolTip1.SetToolTip(this.speedTextBox, "Player.Speed - sets the player\'s media playback speed.");
this.speedTextBox.KeyPress += new System.Windows.Forms.KeyPressEventHandler(this.speedTextBox_KeyPress);
this.speedTextBox.Validated += new System.EventHandler(this.speedTextBox_Validated);
//
// speedLight
//
this.speedLight.BackColor = System.Drawing.Color.FromArgb(((int)(((byte)(40)))), ((int)(((byte)(40)))), ((int)(((byte)(40)))));
this.speedLight.ForeColor = System.Drawing.Color.Red;
this.speedLight.Location = new System.Drawing.Point(7, 8);
this.speedLight.Name = "speedLight";
this.speedLight.Size = new System.Drawing.Size(3, 6);
this.speedLight.TabIndex = 0;
//
// speedLabelText
//
this.speedLabelText.AutoSize = true;
this.speedLabelText.BackColor = System.Drawing.Color.Transparent;
this.speedLabelText.ContextMenuStrip = this.sliderMenu;
this.speedLabelText.ForeColor = System.Drawing.Color.FromArgb(((int)(((byte)(189)))), ((int)(((byte)(159)))), ((int)(((byte)(87)))));
this.speedLabelText.Location = new System.Drawing.Point(41, 4);
this.speedLabelText.Name = "speedLabelText";
this.speedLabelText.Size = new System.Drawing.Size(38, 13);
this.speedLabelText.TabIndex = 1;
this.speedLabelText.Text = "Speed";
//
// repeatPanel
//
this.repeatPanel.BackColor = System.Drawing.Color.FromArgb(((int)(((byte)(32)))), ((int)(((byte)(32)))), ((int)(((byte)(32)))));
this.repeatPanel.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
this.repeatPanel.Controls.Add(this.repeatLight);
this.repeatPanel.Controls.Add(this.repeatButton);
this.repeatPanel.Controls.Add(this.nextFromLabel);
this.repeatPanel.Controls.Add(this.endPositionMediaTextBox);
this.repeatPanel.Controls.Add(this.startPositionMediaTextBox);
this.repeatPanel.Controls.Add(this.currentFromLabel);
this.repeatPanel.Controls.Add(this.endPositionTextBox);
this.repeatPanel.Controls.Add(this.startPositionTextBox);
this.repeatPanel.Location = new System.Drawing.Point(6, 279);
this.repeatPanel.Name = "repeatPanel";
this.repeatPanel.Size = new System.Drawing.Size(140, 133);
this.repeatPanel.TabIndex = 3;
//
// repeatLight
//
this.repeatLight.BackColor = System.Drawing.Color.FromArgb(((int)(((byte)(40)))), ((int)(((byte)(40)))), ((int)(((byte)(40)))));
this.repeatLight.ForeColor = System.Drawing.Color.Lime;
this.repeatLight.Location = new System.Drawing.Point(16, 17);
this.repeatLight.Name = "repeatLight";
this.repeatLight.Size = new System.Drawing.Size(3, 6);
this.repeatLight.TabIndex = 1;
//
// repeatButton
//
this.repeatButton.Appearance = System.Windows.Forms.Appearance.Button;
this.repeatButton.BorderColor = System.Drawing.Color.FromArgb(((int)(((byte)(64)))), ((int)(((byte)(64)))), ((int)(((byte)(64)))));
this.repeatButton.DropDown = this.repeatMenu;
this.repeatButton.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
this.repeatButton.ForeColor = System.Drawing.Color.FromArgb(((int)(((byte)(189)))), ((int)(((byte)(159)))), ((int)(((byte)(87)))));
this.repeatButton.Location = new System.Drawing.Point(9, 9);
this.repeatButton.Name = "repeatButton";
this.repeatButton.Size = new System.Drawing.Size(121, 21);
this.repeatButton.TabIndex = 0;
this.repeatButton.Text = "Repeat Off";
this.repeatButton.TextAlign = System.Drawing.ContentAlignment.MiddleCenter;
this.toolTip1.SetToolTip(this.repeatButton, "Player.Repeat - repeats media playback from \'StartPosition\' to \'EndPosition\'.");
this.repeatButton.UseVisualStyleBackColor = false;
//
// repeatMenu
//
this.repeatMenu.Items.AddRange(new System.Windows.Forms.ToolStripItem[] {
this.repeatOneMenuItem,
this.repeatAllMenuItem,
this.toolStripSeparator18,
this.shuffleMenuItem,
this.toolStripSeparator19,
this.repeatOffMenuItem});
this.repeatMenu.Name = "repeatMenu";
this.repeatMenu.OwnerItem = this.repeatMenuItem;
this.repeatMenu.Size = new System.Drawing.Size(204, 104);
//
// repeatOneMenuItem
//
this.repeatOneMenuItem.ForeColor = System.Drawing.SystemColors.ControlText;
this.repeatOneMenuItem.Name = "repeatOneMenuItem";
this.repeatOneMenuItem.ShortcutKeys = ((System.Windows.Forms.Keys)((System.Windows.Forms.Keys.Control | System.Windows.Forms.Keys.T)));
this.repeatOneMenuItem.Size = new System.Drawing.Size(203, 22);
this.repeatOneMenuItem.Text = "Repeat One";
this.repeatOneMenuItem.Click += new System.EventHandler(this.repeatOneMenuItem_Click);
//
// repeatAllMenuItem
//
this.repeatAllMenuItem.ForeColor = System.Drawing.SystemColors.ControlText;
this.repeatAllMenuItem.Name = "repeatAllMenuItem";
this.repeatAllMenuItem.ShortcutKeys = ((System.Windows.Forms.Keys)((System.Windows.Forms.Keys.Control | System.Windows.Forms.Keys.R)));
this.repeatAllMenuItem.Size = new System.Drawing.Size(203, 22);
this.repeatAllMenuItem.Text = "Repeat All";
this.repeatAllMenuItem.Click += new System.EventHandler(this.repeatAllMenuItem_Click);
//
// toolStripSeparator18
//
this.toolStripSeparator18.ForeColor = System.Drawing.SystemColors.ControlText;
this.toolStripSeparator18.Name = "toolStripSeparator18";
this.toolStripSeparator18.Size = new System.Drawing.Size(200, 6);
//
// shuffleMenuItem
//
this.shuffleMenuItem.ForeColor = System.Drawing.SystemColors.ControlText;
this.shuffleMenuItem.Name = "shuffleMenuItem";
this.shuffleMenuItem.ShortcutKeys = ((System.Windows.Forms.Keys)((System.Windows.Forms.Keys.Control | System.Windows.Forms.Keys.H)));
this.shuffleMenuItem.Size = new System.Drawing.Size(203, 22);
this.shuffleMenuItem.Text = "Shuffle";
this.shuffleMenuItem.Click += new System.EventHandler(this.shuffleMenuItem_Click);
//
// toolStripSeparator19
//
this.toolStripSeparator19.ForeColor = System.Drawing.SystemColors.ControlText;
this.toolStripSeparator19.Name = "toolStripSeparator19";
this.toolStripSeparator19.Size = new System.Drawing.Size(200, 6);
//
// repeatOffMenuItem
//
this.repeatOffMenuItem.Checked = true;
this.repeatOffMenuItem.CheckState = System.Windows.Forms.CheckState.Checked;
this.repeatOffMenuItem.ForeColor = System.Drawing.SystemColors.ControlText;
this.repeatOffMenuItem.Name = "repeatOffMenuItem";
this.repeatOffMenuItem.ShortcutKeys = ((System.Windows.Forms.Keys)(((System.Windows.Forms.Keys.Control | System.Windows.Forms.Keys.Shift)
| System.Windows.Forms.Keys.R)));
this.repeatOffMenuItem.Size = new System.Drawing.Size(203, 22);
this.repeatOffMenuItem.Text = "Repeat Off";
this.repeatOffMenuItem.Click += new System.EventHandler(this.repeatOffMenuItem_Click);
//
// repeatMenuItem
//
this.repeatMenuItem.DropDown = this.repeatMenu;
this.repeatMenuItem.Name = "repeatMenuItem";
this.repeatMenuItem.Size = new System.Drawing.Size(155, 22);
this.repeatMenuItem.Text = "Repeat";
//
// nextFromLabel
//
this.nextFromLabel.ForeColor = System.Drawing.Color.FromArgb(((int)(((byte)(189)))), ((int)(((byte)(159)))), ((int)(((byte)(87)))));
this.nextFromLabel.Location = new System.Drawing.Point(9, 35);
this.nextFromLabel.Name = "nextFromLabel";
this.nextFromLabel.Size = new System.Drawing.Size(121, 19);
this.nextFromLabel.TabIndex = 2;
this.nextFromLabel.Text = "Play Next From - To";
this.nextFromLabel.TextAlign = System.Drawing.ContentAlignment.MiddleCenter;
//
// endPositionMediaTextBox
//
this.endPositionMediaTextBox.BackColor = System.Drawing.Color.FromArgb(((int)(((byte)(18)))), ((int)(((byte)(18)))), ((int)(((byte)(18)))));
this.endPositionMediaTextBox.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
this.endPositionMediaTextBox.Enabled = false;
this.endPositionMediaTextBox.Font = new System.Drawing.Font("Microsoft Sans Serif", 9F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
this.endPositionMediaTextBox.ForeColor = System.Drawing.Color.FromArgb(((int)(((byte)(189)))), ((int)(((byte)(159)))), ((int)(((byte)(87)))));
this.endPositionMediaTextBox.Location = new System.Drawing.Point(69, 101);
this.endPositionMediaTextBox.Mask = "00:00:00";
this.endPositionMediaTextBox.Name = "endPositionMediaTextBox";
this.endPositionMediaTextBox.Size = new System.Drawing.Size(61, 21);
this.endPositionMediaTextBox.TabIndex = 7;
this.endPositionMediaTextBox.Text = "000000";
this.endPositionMediaTextBox.TextAlign = System.Windows.Forms.HorizontalAlignment.Center;
this.toolTip1.SetToolTip(this.endPositionMediaTextBox, "Player.EndPositionMedia - the end position of the playing media.");
this.endPositionMediaTextBox.KeyPress += new System.Windows.Forms.KeyPressEventHandler(this.positionTextBoxes_KeyPress);
this.endPositionMediaTextBox.Validated += new System.EventHandler(this.endPositionMediaTextBox_Validated);
//
// startPositionMediaTextBox
//
this.startPositionMediaTextBox.BackColor = System.Drawing.Color.FromArgb(((int)(((byte)(18)))), ((int)(((byte)(18)))), ((int)(((byte)(18)))));
this.startPositionMediaTextBox.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
this.startPositionMediaTextBox.Enabled = false;
this.startPositionMediaTextBox.Font = new System.Drawing.Font("Microsoft Sans Serif", 9F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
this.startPositionMediaTextBox.ForeColor = System.Drawing.Color.FromArgb(((int)(((byte)(189)))), ((int)(((byte)(159)))), ((int)(((byte)(87)))));
this.startPositionMediaTextBox.Location = new System.Drawing.Point(9, 101);
this.startPositionMediaTextBox.Mask = "00:00:00";
this.startPositionMediaTextBox.Name = "startPositionMediaTextBox";
this.startPositionMediaTextBox.Size = new System.Drawing.Size(61, 21);
this.startPositionMediaTextBox.TabIndex = 6;
this.startPositionMediaTextBox.Text = "000000";
this.startPositionMediaTextBox.TextAlign = System.Windows.Forms.HorizontalAlignment.Center;
this.toolTip1.SetToolTip(this.startPositionMediaTextBox, "Player.StartPositionMedia - the start position of the playing media.");
this.startPositionMediaTextBox.KeyPress += new System.Windows.Forms.KeyPressEventHandler(this.positionTextBoxes_KeyPress);
this.startPositionMediaTextBox.Validated += new System.EventHandler(this.startPositionMediaTextBox_Validated);
//
// currentFromLabel
//
this.currentFromLabel.ForeColor = System.Drawing.Color.FromArgb(((int)(((byte)(189)))), ((int)(((byte)(159)))), ((int)(((byte)(87)))));
this.currentFromLabel.Location = new System.Drawing.Point(9, 81);
this.currentFromLabel.Name = "currentFromLabel";
this.currentFromLabel.Size = new System.Drawing.Size(121, 19);
this.currentFromLabel.TabIndex = 5;
this.currentFromLabel.Text = "Play Current From - To";
this.currentFromLabel.TextAlign = System.Drawing.ContentAlignment.MiddleCenter;
//
// endPositionTextBox
//
this.endPositionTextBox.BackColor = System.Drawing.Color.FromArgb(((int)(((byte)(18)))), ((int)(((byte)(18)))), ((int)(((byte)(18)))));
this.endPositionTextBox.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
this.endPositionTextBox.Culture = new System.Globalization.CultureInfo("");
this.endPositionTextBox.Font = new System.Drawing.Font("Microsoft Sans Serif", 9F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
this.endPositionTextBox.ForeColor = System.Drawing.Color.FromArgb(((int)(((byte)(189)))), ((int)(((byte)(159)))), ((int)(((byte)(87)))));
this.endPositionTextBox.Location = new System.Drawing.Point(69, 55);
this.endPositionTextBox.Mask = "00:00:00";
this.endPositionTextBox.Name = "endPositionTextBox";
this.endPositionTextBox.Size = new System.Drawing.Size(61, 21);
this.endPositionTextBox.TabIndex = 4;
this.endPositionTextBox.Text = "000000";
this.endPositionTextBox.TextAlign = System.Windows.Forms.HorizontalAlignment.Center;
this.toolTip1.SetToolTip(this.endPositionTextBox, "Player.EndPosition - the end position of the next media to play.");
this.endPositionTextBox.KeyPress += new System.Windows.Forms.KeyPressEventHandler(this.positionTextBoxes_KeyPress);
this.endPositionTextBox.Validated += new System.EventHandler(this.endPositionTextBox_Validated);
//
// startPositionTextBox
//
this.startPositionTextBox.BackColor = System.Drawing.Color.FromArgb(((int)(((byte)(18)))), ((int)(((byte)(18)))), ((int)(((byte)(18)))));
this.startPositionTextBox.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
this.startPositionTextBox.Font = new System.Drawing.Font("Microsoft Sans Serif", 9F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
this.startPositionTextBox.ForeColor = System.Drawing.Color.FromArgb(((int)(((byte)(189)))), ((int)(((byte)(159)))), ((int)(((byte)(87)))));
this.startPositionTextBox.Location = new System.Drawing.Point(9, 55);
this.startPositionTextBox.Mask = "00:00:00";
this.startPositionTextBox.Name = "startPositionTextBox";
this.startPositionTextBox.Size = new System.Drawing.Size(61, 21);
this.startPositionTextBox.TabIndex = 3;
this.startPositionTextBox.Text = "000000";
this.startPositionTextBox.TextAlign = System.Windows.Forms.HorizontalAlignment.Center;
this.toolTip1.SetToolTip(this.startPositionTextBox, "Player.StartPosition - the start position of the next media to play.");
this.startPositionTextBox.KeyPress += new System.Windows.Forms.KeyPressEventHandler(this.positionTextBoxes_KeyPress);
this.startPositionTextBox.Validated += new System.EventHandler(this.startPositionTextBox_Validated);
//
// displayModePanel
//
this.displayModePanel.BackColor = System.Drawing.Color.FromArgb(((int)(((byte)(32)))), ((int)(((byte)(32)))), ((int)(((byte)(32)))));
this.displayModePanel.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
this.displayModePanel.Controls.Add(this.overlayMenuLight);
this.displayModePanel.Controls.Add(this.overlayLight);
this.displayModePanel.Controls.Add(this.displayOverlayButton);
this.displayModePanel.Controls.Add(this.fullScreenLight);
this.displayModePanel.Controls.Add(this.fullScreenModeButton);
this.displayModePanel.Controls.Add(this.displayModeLight);
this.displayModePanel.Controls.Add(this.displayModeButton);
this.displayModePanel.Controls.Add(this.displayModeLabel);
this.displayModePanel.Controls.Add(this.overlayMenuButton);
this.displayModePanel.Location = new System.Drawing.Point(6, 130);
this.displayModePanel.Name = "displayModePanel";
this.displayModePanel.Size = new System.Drawing.Size(140, 144);
this.displayModePanel.TabIndex = 2;
//
// overlayMenuLight
//
this.overlayMenuLight.BackColor = System.Drawing.Color.FromArgb(((int)(((byte)(40)))), ((int)(((byte)(40)))), ((int)(((byte)(40)))));
this.overlayMenuLight.ForeColor = System.Drawing.Color.Lime;
this.overlayMenuLight.Location = new System.Drawing.Point(16, 120);
this.overlayMenuLight.Name = "overlayMenuLight";
this.overlayMenuLight.Size = new System.Drawing.Size(3, 6);
this.overlayMenuLight.TabIndex = 8;
//
// overlayLight
//
this.overlayLight.BackColor = System.Drawing.Color.FromArgb(((int)(((byte)(40)))), ((int)(((byte)(40)))), ((int)(((byte)(40)))));
this.overlayLight.ForeColor = System.Drawing.Color.Lime;
this.overlayLight.Location = new System.Drawing.Point(16, 94);
this.overlayLight.Name = "overlayLight";
this.overlayLight.Size = new System.Drawing.Size(3, 6);
this.overlayLight.TabIndex = 6;
//
// displayOverlayButton
//
this.displayOverlayButton.Appearance = System.Windows.Forms.Appearance.Button;
this.displayOverlayButton.BorderColor = System.Drawing.Color.FromArgb(((int)(((byte)(64)))), ((int)(((byte)(64)))), ((int)(((byte)(64)))));
this.displayOverlayButton.DropDown = this.displayOverlayMenu;
this.displayOverlayButton.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
this.displayOverlayButton.ForeColor = System.Drawing.Color.FromArgb(((int)(((byte)(189)))), ((int)(((byte)(159)))), ((int)(((byte)(87)))));
this.displayOverlayButton.Location = new System.Drawing.Point(9, 86);
this.displayOverlayButton.Name = "displayOverlayButton";
this.displayOverlayButton.Size = new System.Drawing.Size(121, 21);
this.displayOverlayButton.TabIndex = 5;
this.displayOverlayButton.Text = "Overlay Off";
this.displayOverlayButton.TextAlign = System.Drawing.ContentAlignment.MiddleCenter;
this.toolTip1.SetToolTip(this.displayOverlayButton, "Player.Overlay - shows or hides a player\'s display overlay.");
this.displayOverlayButton.UseVisualStyleBackColor = true;
//
// displayOverlayMenu
//
this.displayOverlayMenu.Items.AddRange(new System.Windows.Forms.ToolStripItem[] {
this.overlayModeToolStripMenuItem,
this.overlayHoldMenuItem,
this.toolStripSeparator5,
this.messageMenuItem,
this.scribbleMenuItem,
this.toolStripSeparator24,
this.tilesMenuItem,
this.bouncingMenuItem,
this.toolStripSeparator23,
this.PiPMenuItem,
this.subtitlesMenuItem,
this.toolStripSeparator25,
this.zoomSelectMenuItem,
this.videoWallMenuItem,
this.toolStripSeparator21,
this.MP3CoverMenuItem,
this.MP3KaraokeMenuItem,
this.toolStripSeparator22,
this.bigTimeMenuItem,
this.statusInfoMenuItem,
this.toolStripSeparator6,
this.overlayOffMenuItem});
this.displayOverlayMenu.Name = "displayOverlayMenu";
this.displayOverlayMenu.ShowItemToolTips = false;
this.displayOverlayMenu.Size = new System.Drawing.Size(249, 376);
//
// overlayModeToolStripMenuItem
//
this.overlayModeToolStripMenuItem.DropDownItems.AddRange(new System.Windows.Forms.ToolStripItem[] {
this.videoMenuItem,
this.displayMenuItem});
this.overlayModeToolStripMenuItem.Name = "overlayModeToolStripMenuItem";
this.overlayModeToolStripMenuItem.Size = new System.Drawing.Size(248, 22);
this.overlayModeToolStripMenuItem.Text = "Overlay Mode";
//
// videoMenuItem
//
this.videoMenuItem.Checked = true;
this.videoMenuItem.CheckState = System.Windows.Forms.CheckState.Checked;
this.videoMenuItem.Name = "videoMenuItem";
this.videoMenuItem.ShortcutKeys = ((System.Windows.Forms.Keys)((System.Windows.Forms.Keys.Alt | System.Windows.Forms.Keys.V)));
this.videoMenuItem.Size = new System.Drawing.Size(150, 22);
this.videoMenuItem.Text = "Video";
this.videoMenuItem.Click += new System.EventHandler(this.videoMenuItem_Click);
//
// displayMenuItem
//
this.displayMenuItem.Name = "displayMenuItem";
this.displayMenuItem.ShortcutKeys = ((System.Windows.Forms.Keys)((System.Windows.Forms.Keys.Alt | System.Windows.Forms.Keys.D)));
this.displayMenuItem.Size = new System.Drawing.Size(150, 22);
this.displayMenuItem.Text = "Display";
this.displayMenuItem.Click += new System.EventHandler(this.displayMenuItem_Click);
//
// overlayHoldMenuItem
//
this.overlayHoldMenuItem.Name = "overlayHoldMenuItem";
this.overlayHoldMenuItem.ShortcutKeys = ((System.Windows.Forms.Keys)((System.Windows.Forms.Keys.Alt | System.Windows.Forms.Keys.H)));
this.overlayHoldMenuItem.Size = new System.Drawing.Size(248, 22);
this.overlayHoldMenuItem.Text = "Overlay Hold";
this.overlayHoldMenuItem.Click += new System.EventHandler(this.overlayHoldMenuItem_Click);
//
// toolStripSeparator5
//
this.toolStripSeparator5.Name = "toolStripSeparator5";
this.toolStripSeparator5.Size = new System.Drawing.Size(245, 6);
//
// messageMenuItem
//
this.messageMenuItem.Name = "messageMenuItem";
this.messageMenuItem.ShortcutKeys = ((System.Windows.Forms.Keys)((System.Windows.Forms.Keys.Alt | System.Windows.Forms.Keys.F1)));
this.messageMenuItem.Size = new System.Drawing.Size(248, 22);
this.messageMenuItem.Text = "Example \"Message\"";
this.messageMenuItem.Click += new System.EventHandler(this.messageMenuItem_Click);
//
// scribbleMenuItem
//
this.scribbleMenuItem.Name = "scribbleMenuItem";
this.scribbleMenuItem.ShortcutKeys = ((System.Windows.Forms.Keys)((System.Windows.Forms.Keys.Alt | System.Windows.Forms.Keys.F2)));
this.scribbleMenuItem.Size = new System.Drawing.Size(248, 22);
this.scribbleMenuItem.Text = "Example \"Scribble\"";
this.scribbleMenuItem.Click += new System.EventHandler(this.scribbleMenuItem_Click);
//
// toolStripSeparator24
//
this.toolStripSeparator24.Name = "toolStripSeparator24";
this.toolStripSeparator24.Size = new System.Drawing.Size(245, 6);
//
// tilesMenuItem
//
this.tilesMenuItem.Name = "tilesMenuItem";
this.tilesMenuItem.ShortcutKeys = ((System.Windows.Forms.Keys)((System.Windows.Forms.Keys.Alt | System.Windows.Forms.Keys.F3)));
this.tilesMenuItem.Size = new System.Drawing.Size(248, 22);
this.tilesMenuItem.Text = "Example \"Tiles && Puzzle\"";
this.tilesMenuItem.Click += new System.EventHandler(this.tilesMenuItem_Click);
//
// bouncingMenuItem
//
this.bouncingMenuItem.Name = "bouncingMenuItem";
this.bouncingMenuItem.ShortcutKeys = ((System.Windows.Forms.Keys)((System.Windows.Forms.Keys.Alt | System.Windows.Forms.Keys.F4)));
this.bouncingMenuItem.Size = new System.Drawing.Size(248, 22);
this.bouncingMenuItem.Text = "Example \"Bouncing\"";
this.bouncingMenuItem.Click += new System.EventHandler(this.bouncingMenuItem_Click);
//
// toolStripSeparator23
//
this.toolStripSeparator23.Name = "toolStripSeparator23";
this.toolStripSeparator23.Size = new System.Drawing.Size(245, 6);
//
// PiPMenuItem
//
this.PiPMenuItem.Name = "PiPMenuItem";
this.PiPMenuItem.ShortcutKeys = ((System.Windows.Forms.Keys)((System.Windows.Forms.Keys.Alt | System.Windows.Forms.Keys.F5)));
this.PiPMenuItem.Size = new System.Drawing.Size(248, 22);
this.PiPMenuItem.Text = "Example \"PiP\"";
this.PiPMenuItem.Click += new System.EventHandler(this.PiPMenuItem_Click);
//
// subtitlesMenuItem
//
this.subtitlesMenuItem.Name = "subtitlesMenuItem";
this.subtitlesMenuItem.ShortcutKeys = ((System.Windows.Forms.Keys)((System.Windows.Forms.Keys.Alt | System.Windows.Forms.Keys.F6)));
this.subtitlesMenuItem.Size = new System.Drawing.Size(248, 22);
this.subtitlesMenuItem.Text = "Example \"Subtitles\"";
this.subtitlesMenuItem.Click += new System.EventHandler(this.subtitlesMenuItem_Click);
//
// toolStripSeparator25
//
this.toolStripSeparator25.Name = "toolStripSeparator25";
this.toolStripSeparator25.Size = new System.Drawing.Size(245, 6);
//
// zoomSelectMenuItem
//
this.zoomSelectMenuItem.Name = "zoomSelectMenuItem";
this.zoomSelectMenuItem.ShortcutKeys = ((System.Windows.Forms.Keys)((System.Windows.Forms.Keys.Alt | System.Windows.Forms.Keys.F7)));
this.zoomSelectMenuItem.Size = new System.Drawing.Size(248, 22);
this.zoomSelectMenuItem.Text = "Example \"Zoom Select\"";
this.zoomSelectMenuItem.Click += new System.EventHandler(this.zoomSelectMenuItem_Click);
//
// videoWallMenuItem
//
this.videoWallMenuItem.Name = "videoWallMenuItem";
this.videoWallMenuItem.ShortcutKeys = ((System.Windows.Forms.Keys)((System.Windows.Forms.Keys.Alt | System.Windows.Forms.Keys.F8)));
this.videoWallMenuItem.Size = new System.Drawing.Size(248, 22);
this.videoWallMenuItem.Text = "Example \"Video Wall\"";
this.videoWallMenuItem.Click += new System.EventHandler(this.videoWallMenuItem_Click);
//
// toolStripSeparator21
//
this.toolStripSeparator21.Name = "toolStripSeparator21";
this.toolStripSeparator21.Size = new System.Drawing.Size(245, 6);
//
// MP3CoverMenuItem
//
this.MP3CoverMenuItem.Name = "MP3CoverMenuItem";
this.MP3CoverMenuItem.ShortcutKeys = ((System.Windows.Forms.Keys)((System.Windows.Forms.Keys.Alt | System.Windows.Forms.Keys.F9)));
this.MP3CoverMenuItem.Size = new System.Drawing.Size(248, 22);
this.MP3CoverMenuItem.Text = "Example \"MP3 Cover\"";
this.MP3CoverMenuItem.Click += new System.EventHandler(this.MP3CoverMenuItem_Click);
//
// MP3KaraokeMenuItem
//
this.MP3KaraokeMenuItem.Name = "MP3KaraokeMenuItem";
this.MP3KaraokeMenuItem.ShortcutKeys = ((System.Windows.Forms.Keys)((System.Windows.Forms.Keys.Alt | System.Windows.Forms.Keys.F10)));
this.MP3KaraokeMenuItem.Size = new System.Drawing.Size(248, 22);
this.MP3KaraokeMenuItem.Text = "Example \"MP3 Karaoke\"";
this.MP3KaraokeMenuItem.Click += new System.EventHandler(this.MP3KaraokeMenuItem_Click);
//
// toolStripSeparator22
//
this.toolStripSeparator22.Name = "toolStripSeparator22";
this.toolStripSeparator22.Size = new System.Drawing.Size(245, 6);
//
// bigTimeMenuItem
//
this.bigTimeMenuItem.Name = "bigTimeMenuItem";
this.bigTimeMenuItem.ShortcutKeys = ((System.Windows.Forms.Keys)((System.Windows.Forms.Keys.Alt | System.Windows.Forms.Keys.F11)));
this.bigTimeMenuItem.Size = new System.Drawing.Size(248, 22);
this.bigTimeMenuItem.Text = "Example \"Big Time\"";
this.bigTimeMenuItem.Click += new System.EventHandler(this.bigTimeMenuItem_Click);
//
// statusInfoMenuItem
//
this.statusInfoMenuItem.Name = "statusInfoMenuItem";
this.statusInfoMenuItem.ShortcutKeys = ((System.Windows.Forms.Keys)((System.Windows.Forms.Keys.Alt | System.Windows.Forms.Keys.F12)));
this.statusInfoMenuItem.Size = new System.Drawing.Size(248, 22);
this.statusInfoMenuItem.Text = "Example \"Status Info\"";
this.statusInfoMenuItem.Click += new System.EventHandler(this.statusInfoMenuItem_Click);
//
// toolStripSeparator6
//
this.toolStripSeparator6.Name = "toolStripSeparator6";
this.toolStripSeparator6.Size = new System.Drawing.Size(245, 6);
//
// overlayOffMenuItem
//
this.overlayOffMenuItem.Checked = true;
this.overlayOffMenuItem.CheckState = System.Windows.Forms.CheckState.Checked;
this.overlayOffMenuItem.Name = "overlayOffMenuItem";
this.overlayOffMenuItem.ShortcutKeys = ((System.Windows.Forms.Keys)((System.Windows.Forms.Keys.Alt | System.Windows.Forms.Keys.D0)));
this.overlayOffMenuItem.Size = new System.Drawing.Size(248, 22);
this.overlayOffMenuItem.Text = "Overlay Off";
this.overlayOffMenuItem.Click += new System.EventHandler(this.overlayOffMenuItem_Click);
//
// displayOverlayMenuItem
//
this.displayOverlayMenuItem.DropDown = this.displayOverlayMenu;
this.displayOverlayMenuItem.Name = "displayOverlayMenuItem";
this.displayOverlayMenuItem.Size = new System.Drawing.Size(155, 22);
this.displayOverlayMenuItem.Text = "Display Overlay";
//
// fullScreenLight
//
this.fullScreenLight.BackColor = System.Drawing.Color.FromArgb(((int)(((byte)(40)))), ((int)(((byte)(40)))), ((int)(((byte)(40)))));
this.fullScreenLight.ForeColor = System.Drawing.Color.Lime;
this.fullScreenLight.Location = new System.Drawing.Point(16, 68);
this.fullScreenLight.Name = "fullScreenLight";
this.fullScreenLight.Size = new System.Drawing.Size(3, 6);
this.fullScreenLight.TabIndex = 4;
//
// fullScreenModeButton
//
this.fullScreenModeButton.Appearance = System.Windows.Forms.Appearance.Button;
this.fullScreenModeButton.BorderColor = System.Drawing.Color.FromArgb(((int)(((byte)(64)))), ((int)(((byte)(64)))), ((int)(((byte)(64)))));
this.fullScreenModeButton.DropDown = this.fullScreenModeMenu;
this.fullScreenModeButton.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
this.fullScreenModeButton.ForeColor = System.Drawing.Color.FromArgb(((int)(((byte)(189)))), ((int)(((byte)(159)))), ((int)(((byte)(87)))));
this.fullScreenModeButton.Location = new System.Drawing.Point(9, 60);
this.fullScreenModeButton.Name = "fullScreenModeButton";
this.fullScreenModeButton.Size = new System.Drawing.Size(121, 21);
this.fullScreenModeButton.TabIndex = 3;
this.fullScreenModeButton.Text = "FullScreen Off";
this.fullScreenModeButton.TextAlign = System.Drawing.ContentAlignment.MiddleCenter;
this.toolTip1.SetToolTip(this.fullScreenModeButton, "Player.FullScreen / Player.FullScreenMode - shows the player\'s display full scree" +
"n.");
this.fullScreenModeButton.UseVisualStyleBackColor = true;
//
// fullScreenModeMenu
//
this.fullScreenModeMenu.Items.AddRange(new System.Windows.Forms.ToolStripItem[] {
this.fullScreenFormMenuItem,
this.fullScreenParentMenuItem,
this.fullScreenDisplayMenuItem,
this.toolStripSeparator3,
this.fullScreenOffMenuItem});
this.fullScreenModeMenu.Name = "fullScreenModeMenu";
this.fullScreenModeMenu.OwnerItem = this.fullScreenModeMenuItem;
this.fullScreenModeMenu.Size = new System.Drawing.Size(195, 98);
this.fullScreenModeMenu.ItemClicked += new System.Windows.Forms.ToolStripItemClickedEventHandler(this.fullScreenModeMenu_ItemClicked);
//
// fullScreenFormMenuItem
//
this.fullScreenFormMenuItem.Name = "fullScreenFormMenuItem";
this.fullScreenFormMenuItem.ShortcutKeys = System.Windows.Forms.Keys.F8;
this.fullScreenFormMenuItem.Size = new System.Drawing.Size(194, 22);
this.fullScreenFormMenuItem.Text = "FullScreen Form";
//
// fullScreenParentMenuItem
//
this.fullScreenParentMenuItem.Name = "fullScreenParentMenuItem";
this.fullScreenParentMenuItem.ShortcutKeys = System.Windows.Forms.Keys.F9;
this.fullScreenParentMenuItem.Size = new System.Drawing.Size(194, 22);
this.fullScreenParentMenuItem.Text = "FullScreen Parent";
//
// fullScreenDisplayMenuItem
//
this.fullScreenDisplayMenuItem.Name = "fullScreenDisplayMenuItem";
this.fullScreenDisplayMenuItem.ShortcutKeys = System.Windows.Forms.Keys.F10;
this.fullScreenDisplayMenuItem.Size = new System.Drawing.Size(194, 22);
this.fullScreenDisplayMenuItem.Text = "FullScreen Display";
//
// toolStripSeparator3
//
this.toolStripSeparator3.Name = "toolStripSeparator3";
this.toolStripSeparator3.Size = new System.Drawing.Size(191, 6);
//
// fullScreenOffMenuItem
//
this.fullScreenOffMenuItem.Checked = true;
this.fullScreenOffMenuItem.CheckState = System.Windows.Forms.CheckState.Checked;
this.fullScreenOffMenuItem.Name = "fullScreenOffMenuItem";
this.fullScreenOffMenuItem.ShortcutKeys = System.Windows.Forms.Keys.F11;
this.fullScreenOffMenuItem.Size = new System.Drawing.Size(194, 22);
this.fullScreenOffMenuItem.Text = "FullScreen Off";
//
// fullScreenModeMenuItem
//
this.fullScreenModeMenuItem.DropDown = this.fullScreenModeMenu;
this.fullScreenModeMenuItem.Name = "fullScreenModeMenuItem";
this.fullScreenModeMenuItem.Size = new System.Drawing.Size(155, 22);
this.fullScreenModeMenuItem.Text = "FullScreen Mode";
//
// displayModeLight
//
this.displayModeLight.BackColor = System.Drawing.Color.FromArgb(((int)(((byte)(40)))), ((int)(((byte)(40)))), ((int)(((byte)(40)))));
this.displayModeLight.ForeColor = System.Drawing.Color.Red;
this.displayModeLight.Location = new System.Drawing.Point(16, 42);
this.displayModeLight.Name = "displayModeLight";
this.displayModeLight.Size = new System.Drawing.Size(3, 6);
this.displayModeLight.TabIndex = 2;
//
// displayModeButton
//
this.displayModeButton.Appearance = System.Windows.Forms.Appearance.Button;
this.displayModeButton.BorderColor = System.Drawing.Color.FromArgb(((int)(((byte)(64)))), ((int)(((byte)(64)))), ((int)(((byte)(64)))));
this.displayModeButton.DropDown = this.displayModeMenu;
this.displayModeButton.ForeColor = System.Drawing.Color.FromArgb(((int)(((byte)(189)))), ((int)(((byte)(159)))), ((int)(((byte)(87)))));
this.displayModeButton.Location = new System.Drawing.Point(9, 34);
this.displayModeButton.Name = "displayModeButton";
this.displayModeButton.Size = new System.Drawing.Size(121, 21);
this.displayModeButton.TabIndex = 1;
this.displayModeButton.TextAlign = System.Drawing.ContentAlignment.MiddleCenter;
this.toolTip1.SetToolTip(this.displayModeButton, "Player.DisplayMode - sets the size and position of the video inside the player\'s " +
"display.");
this.displayModeButton.UseVisualStyleBackColor = true;
//
// displayModeMenu
//
this.displayModeMenu.Name = "displayModeMenu";
this.displayModeMenu.OwnerItem = this.displayModeMenuItem;
this.displayModeMenu.ShowItemToolTips = false;
this.displayModeMenu.Size = new System.Drawing.Size(61, 4);
this.displayModeMenu.ItemClicked += new System.Windows.Forms.ToolStripItemClickedEventHandler(this.displayModeMenu_ItemClicked);
//
// displayModeMenuItem
//
this.displayModeMenuItem.DropDown = this.displayModeMenu;
this.displayModeMenuItem.Name = "displayModeMenuItem";
this.displayModeMenuItem.Size = new System.Drawing.Size(155, 22);
this.displayModeMenuItem.Text = "Display Mode";
//
// displayModeLabel
//
this.displayModeLabel.Cursor = System.Windows.Forms.Cursors.Hand;
this.displayModeLabel.ForeColor = System.Drawing.Color.FromArgb(((int)(((byte)(189)))), ((int)(((byte)(159)))), ((int)(((byte)(87)))));
this.displayModeLabel.Location = new System.Drawing.Point(9, 9);
this.displayModeLabel.Name = "displayModeLabel";
this.displayModeLabel.Size = new System.Drawing.Size(121, 21);
this.displayModeLabel.TabIndex = 0;
this.displayModeLabel.Text = "Display";
this.displayModeLabel.TextAlign = System.Drawing.ContentAlignment.MiddleCenter;
this.toolTip1.SetToolTip(this.displayModeLabel, "Player.ShowDisplaySettingsPanel - opens the system\'s Display Control Panel.");
this.displayModeLabel.Click += new System.EventHandler(this.displayModeLabel_Click);
//
// overlayMenuButton
//
this.overlayMenuButton.BorderColor = System.Drawing.Color.FromArgb(((int)(((byte)(64)))), ((int)(((byte)(64)))), ((int)(((byte)(64)))));
this.overlayMenuButton.ForeColor = System.Drawing.Color.FromArgb(((int)(((byte)(189)))), ((int)(((byte)(159)))), ((int)(((byte)(87)))));
this.overlayMenuButton.Location = new System.Drawing.Point(9, 112);
this.overlayMenuButton.Name = "overlayMenuButton";
this.overlayMenuButton.Size = new System.Drawing.Size(121, 21);
this.overlayMenuButton.TabIndex = 7;
this.overlayMenuButton.Text = "Overlay Menu";
this.toolTip1.SetToolTip(this.overlayMenuButton, "Shows or hides a display overlay\'s menu (if any).");
this.overlayMenuButton.UseVisualStyleBackColor = true;
this.overlayMenuButton.Click += new System.EventHandler(this.overlayMenuButton_Click);
//
// playPanel
//
this.playPanel.BackColor = System.Drawing.Color.FromArgb(((int)(((byte)(32)))), ((int)(((byte)(32)))), ((int)(((byte)(32)))));
this.playPanel.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
this.playPanel.Controls.Add(this.stopButton);
this.playPanel.Controls.Add(this.nextButton);
this.playPanel.Controls.Add(this.previousButton);
this.playPanel.Controls.Add(this.pauseButton);
this.playPanel.Controls.Add(this.playButtonLight);
this.playPanel.Controls.Add(this.playButton);
this.playPanel.Location = new System.Drawing.Point(6, 62);
this.playPanel.Name = "playPanel";
this.playPanel.Size = new System.Drawing.Size(140, 63);
this.playPanel.TabIndex = 1;
//
// stopButton
//
this.stopButton.BorderColor = System.Drawing.Color.FromArgb(((int)(((byte)(64)))), ((int)(((byte)(64)))), ((int)(((byte)(64)))));
this.stopButton.Font = new System.Drawing.Font("Webdings", 9F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(2)));
this.stopButton.ForeColor = System.Drawing.Color.FromArgb(((int)(((byte)(189)))), ((int)(((byte)(159)))), ((int)(((byte)(87)))));
this.stopButton.Location = new System.Drawing.Point(101, 32);
this.stopButton.Name = "stopButton";
this.stopButton.Size = new System.Drawing.Size(29, 20);
this.stopButton.TabIndex = 5;
this.stopButton.Text = "<";
this.stopButton.TextAlign = System.Drawing.ContentAlignment.BottomCenter;
this.toolTip1.SetToolTip(this.stopButton, "Player.Stop - stops playing media.");
this.stopButton.UseVisualStyleBackColor = true;
this.stopButton.Click += new System.EventHandler(this.stopButton_Click);
//
// nextButton
//
this.nextButton.BorderColor = System.Drawing.Color.FromArgb(((int)(((byte)(64)))), ((int)(((byte)(64)))), ((int)(((byte)(64)))));
this.nextButton.Font = new System.Drawing.Font("Webdings", 9.75F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(2)));
this.nextButton.ForeColor = System.Drawing.Color.FromArgb(((int)(((byte)(189)))), ((int)(((byte)(159)))), ((int)(((byte)(87)))));
this.nextButton.Location = new System.Drawing.Point(70, 32);
this.nextButton.Name = "nextButton";
this.nextButton.Size = new System.Drawing.Size(29, 20);
this.nextButton.TabIndex = 4;
this.nextButton.Text = ":";
this.nextButton.TextAlign = System.Drawing.ContentAlignment.BottomCenter;
this.toolTip1.SetToolTip(this.nextButton, "Player.PlayNext - requests to play next media.");
this.nextButton.UseVisualStyleBackColor = true;
this.nextButton.Click += new System.EventHandler(this.nextButton_Click);
//
// previousButton
//
this.previousButton.BorderColor = System.Drawing.Color.FromArgb(((int)(((byte)(64)))), ((int)(((byte)(64)))), ((int)(((byte)(64)))));
this.previousButton.Font = new System.Drawing.Font("Webdings", 9.75F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(2)));
this.previousButton.ForeColor = System.Drawing.Color.FromArgb(((int)(((byte)(189)))), ((int)(((byte)(159)))), ((int)(((byte)(87)))));
this.previousButton.Location = new System.Drawing.Point(40, 32);
this.previousButton.Name = "previousButton";
this.previousButton.Size = new System.Drawing.Size(28, 20);
this.previousButton.TabIndex = 3;
this.previousButton.Text = "9";
this.previousButton.TextAlign = System.Drawing.ContentAlignment.BottomCenter;
this.toolTip1.SetToolTip(this.previousButton, "Player.PlayPrevious - requests to play previous media.");
this.previousButton.UseVisualStyleBackColor = true;
this.previousButton.Click += new System.EventHandler(this.previousButton_Click);
//
// pauseButton
//
this.pauseButton.BorderColor = System.Drawing.Color.FromArgb(((int)(((byte)(64)))), ((int)(((byte)(64)))), ((int)(((byte)(64)))));
this.pauseButton.Font = new System.Drawing.Font("Webdings", 9.75F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(2)));
this.pauseButton.ForeColor = System.Drawing.Color.FromArgb(((int)(((byte)(189)))), ((int)(((byte)(159)))), ((int)(((byte)(87)))));
this.pauseButton.Location = new System.Drawing.Point(9, 32);
this.pauseButton.Name = "pauseButton";
this.pauseButton.Size = new System.Drawing.Size(29, 20);
this.pauseButton.TabIndex = 2;
this.pauseButton.Text = ";";
this.pauseButton.TextAlign = System.Drawing.ContentAlignment.BottomCenter;
this.toolTip1.SetToolTip(this.pauseButton, "Player.Pause - pauses playing media / Player.Resume - resumes paused media.");
this.pauseButton.Click += new System.EventHandler(this.pauseButton_Click);
//
// playButtonLight
//
this.playButtonLight.BackColor = System.Drawing.Color.FromArgb(((int)(((byte)(40)))), ((int)(((byte)(40)))), ((int)(((byte)(40)))));
this.playButtonLight.ForeColor = System.Drawing.Color.Lime;
this.playButtonLight.Location = new System.Drawing.Point(16, 17);
this.playButtonLight.Name = "playButtonLight";
this.playButtonLight.Size = new System.Drawing.Size(3, 6);
this.playButtonLight.TabIndex = 1;
//
// playButton
//
this.playButton.Appearance = System.Windows.Forms.Appearance.Button;
this.playButton.BorderColor = System.Drawing.Color.FromArgb(((int)(((byte)(64)))), ((int)(((byte)(64)))), ((int)(((byte)(64)))));
this.playButton.DropDown = this.playMenu;
this.playButton.Font = new System.Drawing.Font("Webdings", 9.75F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(2)));
this.playButton.ForeColor = System.Drawing.Color.FromArgb(((int)(((byte)(189)))), ((int)(((byte)(159)))), ((int)(((byte)(87)))));
this.playButton.Location = new System.Drawing.Point(9, 9);
this.playButton.Name = "playButton";
this.playButton.Size = new System.Drawing.Size(121, 21);
this.playButton.TabIndex = 0;
this.playButton.Text = "4";
this.playButton.TextAlign = System.Drawing.ContentAlignment.TopCenter;
this.toolTip1.SetToolTip(this.playButton, "Player.Play - plays media.");
this.playButton.UseVisualStyleBackColor = true;
//
// playMenu
//
this.playMenu.AllowDrop = true;
this.playMenu.Items.AddRange(new System.Windows.Forms.ToolStripItem[] {
this.playListMenuItem,
this.toolStripSeparator16,
this.addMediaFilesMenuItem,
this.addMediaURLMenuItem,
this.menuSeparator1});
this.playMenu.Name = "playMenu";
this.playMenu.OwnerItem = this.playDisplayMenuItem;
this.playMenu.ShowItemToolTips = false;
this.playMenu.Size = new System.Drawing.Size(213, 82);
this.playMenu.ItemClicked += new System.Windows.Forms.ToolStripItemClickedEventHandler(this.playMenu_ItemClicked);
this.playMenu.DragDrop += new System.Windows.Forms.DragEventHandler(this.playMenu_DragDrop);
this.playMenu.DragOver += new System.Windows.Forms.DragEventHandler(this.playMenu_DragOver);
this.playMenu.MouseClick += new System.Windows.Forms.MouseEventHandler(this.playMenu_MouseClick);
//
// playListMenuItem
//
this.playListMenuItem.DropDownItems.AddRange(new System.Windows.Forms.ToolStripItem[] {
this.newPlayListMenuItem,
this.toolStripSeparator2,
this.openPlayListMenuItem,
this.addPlayListMenuItem,
this.toolStripSeparator4,
this.savePlayListMenuItem});
this.playListMenuItem.ForeColor = System.Drawing.SystemColors.ControlText;
this.playListMenuItem.Name = "playListMenuItem";
this.playListMenuItem.Size = new System.Drawing.Size(212, 22);
this.playListMenuItem.Text = "PlayLists";
//
// newPlayListMenuItem
//
this.newPlayListMenuItem.Enabled = false;
this.newPlayListMenuItem.Name = "newPlayListMenuItem";
this.newPlayListMenuItem.ShortcutKeys = ((System.Windows.Forms.Keys)((System.Windows.Forms.Keys.Control | System.Windows.Forms.Keys.N)));
this.newPlayListMenuItem.Size = new System.Drawing.Size(206, 22);
this.newPlayListMenuItem.Text = "New PlayList";
this.newPlayListMenuItem.Click += new System.EventHandler(this.newPlayListMenuItem_Click);
//
// toolStripSeparator2
//
this.toolStripSeparator2.Name = "toolStripSeparator2";
this.toolStripSeparator2.Size = new System.Drawing.Size(203, 6);
//
// openPlayListMenuItem
//
this.openPlayListMenuItem.Name = "openPlayListMenuItem";
this.openPlayListMenuItem.ShortcutKeys = ((System.Windows.Forms.Keys)((System.Windows.Forms.Keys.Control | System.Windows.Forms.Keys.O)));
this.openPlayListMenuItem.Size = new System.Drawing.Size(206, 22);
this.openPlayListMenuItem.Text = "Open PlayList…";
this.openPlayListMenuItem.Click += new System.EventHandler(this.openPlayListMenuItem_Click);
//
// addPlayListMenuItem
//
this.addPlayListMenuItem.Enabled = false;
this.addPlayListMenuItem.Name = "addPlayListMenuItem";
this.addPlayListMenuItem.ShortcutKeys = ((System.Windows.Forms.Keys)((System.Windows.Forms.Keys.Control | System.Windows.Forms.Keys.A)));
this.addPlayListMenuItem.Size = new System.Drawing.Size(206, 22);
this.addPlayListMenuItem.Text = "Add PlayList…";
this.addPlayListMenuItem.Click += new System.EventHandler(this.addPlayListMenuItem_Click);
//
// toolStripSeparator4
//
this.toolStripSeparator4.Name = "toolStripSeparator4";
this.toolStripSeparator4.Size = new System.Drawing.Size(203, 6);
//
// savePlayListMenuItem
//
this.savePlayListMenuItem.Enabled = false;
this.savePlayListMenuItem.Name = "savePlayListMenuItem";
this.savePlayListMenuItem.ShortcutKeys = ((System.Windows.Forms.Keys)((System.Windows.Forms.Keys.Control | System.Windows.Forms.Keys.S)));
this.savePlayListMenuItem.Size = new System.Drawing.Size(206, 22);
this.savePlayListMenuItem.Text = "Save PlayList As…";
this.savePlayListMenuItem.Click += new System.EventHandler(this.savePlayListMenuItem_Click);
//
// toolStripSeparator16
//
this.toolStripSeparator16.ForeColor = System.Drawing.SystemColors.ControlText;
this.toolStripSeparator16.Name = "toolStripSeparator16";
this.toolStripSeparator16.Size = new System.Drawing.Size(209, 6);
//
// addMediaFilesMenuItem
//
this.addMediaFilesMenuItem.ForeColor = System.Drawing.SystemColors.ControlText;
this.addMediaFilesMenuItem.Name = "addMediaFilesMenuItem";
this.addMediaFilesMenuItem.ShortcutKeys = ((System.Windows.Forms.Keys)((System.Windows.Forms.Keys.Control | System.Windows.Forms.Keys.M)));
this.addMediaFilesMenuItem.Size = new System.Drawing.Size(212, 22);
this.addMediaFilesMenuItem.Text = "Add MediaFiles…";
//
// addMediaURLMenuItem
//
this.addMediaURLMenuItem.ForeColor = System.Drawing.SystemColors.ControlText;
this.addMediaURLMenuItem.Name = "addMediaURLMenuItem";
this.addMediaURLMenuItem.ShortcutKeys = ((System.Windows.Forms.Keys)((System.Windows.Forms.Keys.Control | System.Windows.Forms.Keys.U)));
this.addMediaURLMenuItem.Size = new System.Drawing.Size(212, 22);
this.addMediaURLMenuItem.Text = "Add Media URLs…";
//
// menuSeparator1
//
this.menuSeparator1.ForeColor = System.Drawing.SystemColors.ControlText;
this.menuSeparator1.Name = "menuSeparator1";
this.menuSeparator1.Size = new System.Drawing.Size(209, 6);
//
// playDisplayMenuItem
//
this.playDisplayMenuItem.DropDown = this.playMenu;
this.playDisplayMenuItem.Name = "playDisplayMenuItem";
this.playDisplayMenuItem.Size = new System.Drawing.Size(155, 22);
this.playDisplayMenuItem.Text = "Play";
//
// titlePanel
//
this.titlePanel.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
this.titlePanel.Controls.Add(this.webSiteLabel);
this.titlePanel.Controls.Add(this.nameLabel);
this.titlePanel.Location = new System.Drawing.Point(6, 6);
this.titlePanel.Name = "titlePanel";
this.titlePanel.Size = new System.Drawing.Size(140, 51);
this.titlePanel.TabIndex = 0;
//
// webSiteLabel
//
this.webSiteLabel.AutoSize = true;
this.webSiteLabel.BackColor = System.Drawing.Color.Transparent;
this.webSiteLabel.Cursor = System.Windows.Forms.Cursors.Hand;
this.webSiteLabel.ForeColor = System.Drawing.Color.FromArgb(((int)(((byte)(189)))), ((int)(((byte)(159)))), ((int)(((byte)(87)))));
this.webSiteLabel.Location = new System.Drawing.Point(13, 26);
this.webSiteLabel.Name = "webSiteLabel";
this.webSiteLabel.Size = new System.Drawing.Size(113, 13);
this.webSiteLabel.TabIndex = 1;
this.webSiteLabel.Text = "www.codeproject.com";
this.toolTip1.SetToolTip(this.webSiteLabel, "Open The Code Project® website...");
this.webSiteLabel.Click += new System.EventHandler(this.webSiteLabel_Click);
//
// nameLabel
//
this.nameLabel.AutoSize = true;
this.nameLabel.BackColor = System.Drawing.Color.Transparent;
this.nameLabel.Cursor = System.Windows.Forms.Cursors.Help;
this.nameLabel.Font = new System.Drawing.Font("Microsoft Sans Serif", 9.75F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
this.nameLabel.ForeColor = System.Drawing.Color.FromArgb(((int)(((byte)(189)))), ((int)(((byte)(159)))), ((int)(((byte)(87)))));
this.nameLabel.Location = new System.Drawing.Point(22, 8);
this.nameLabel.Name = "nameLabel";
this.nameLabel.Size = new System.Drawing.Size(95, 16);
this.nameLabel.TabIndex = 0;
this.nameLabel.Text = "PVS.AVPlayer";
this.toolTip1.SetToolTip(this.nameLabel, "About PVS.AVPlayer...");
this.nameLabel.Click += new System.EventHandler(this.nameLabel_Click);
//
// toolTip1
//
this.toolTip1.Active = false;
this.toolTip1.BackColor = System.Drawing.Color.FromArgb(((int)(((byte)(64)))), ((int)(((byte)(24)))), ((int)(((byte)(24)))));
this.toolTip1.ForeColor = System.Drawing.Color.FromArgb(((int)(((byte)(189)))), ((int)(((byte)(159)))), ((int)(((byte)(87)))));
//
// pictureBox1
//
this.pictureBox1.BackColor = System.Drawing.Color.FromArgb(((int)(((byte)(18)))), ((int)(((byte)(18)))), ((int)(((byte)(18)))));
this.pictureBox1.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
this.pictureBox1.ContextMenuStrip = this.screenCopyMenu;
this.pictureBox1.Cursor = System.Windows.Forms.Cursors.Hand;
this.pictureBox1.Location = new System.Drawing.Point(9, 30);
this.pictureBox1.Name = "pictureBox1";
this.pictureBox1.Size = new System.Drawing.Size(121, 61);
this.pictureBox1.SizeMode = System.Windows.Forms.PictureBoxSizeMode.Zoom;
this.pictureBox1.TabIndex = 1;
this.pictureBox1.TabStop = false;
this.toolTip1.SetToolTip(this.pictureBox1, "Player.ScreenCopy - copies (part of) the screen.");
this.pictureBox1.MouseDown += new System.Windows.Forms.MouseEventHandler(this.pictureBox_MouseDown);
//
// screenCopyMenu
//
this.screenCopyMenu.Items.AddRange(new System.Windows.Forms.ToolStripItem[] {
this.copyMenuItem,
this.copyModeMenuItem,
this.toolStripSeparator1,
this.openCopyMenuItem,
this.openWithCopyMenuItem,
this.toolStripSeparator12,
this.clearCopyMenuItem});
this.screenCopyMenu.Name = "screenCopyMenu";
this.screenCopyMenu.OwnerItem = this.screencopyMenuItem;
this.screenCopyMenu.ShowImageMargin = false;
this.screenCopyMenu.Size = new System.Drawing.Size(135, 126);
//
// copyMenuItem
//
this.copyMenuItem.Font = new System.Drawing.Font("Segoe UI", 9F, System.Drawing.FontStyle.Bold);
this.copyMenuItem.Name = "copyMenuItem";
this.copyMenuItem.ShortcutKeys = System.Windows.Forms.Keys.F3;
this.copyMenuItem.Size = new System.Drawing.Size(134, 22);
this.copyMenuItem.Text = "Copy";
this.copyMenuItem.Click += new System.EventHandler(this.copyMenuItem_Click);
//
// copyModeMenuItem
//
this.copyModeMenuItem.DropDown = this.copyModeMenu;
this.copyModeMenuItem.Name = "copyModeMenuItem";
this.copyModeMenuItem.Size = new System.Drawing.Size(134, 22);
this.copyModeMenuItem.Text = "CopyMode";
//
// copyModeMenu
//
this.copyModeMenu.Items.AddRange(new System.Windows.Forms.ToolStripItem[] {
this.videoCopyModeMenuItem,
this.displayCopyModeMenuItem,
this.parentCopyModeMenuItem,
this.formCopyModeMenuItem,
this.screenCopyModeMenuItem});
this.copyModeMenu.Name = "copyModeMenu";
this.copyModeMenu.OwnerItem = this.copyModeMenuItem;
this.copyModeMenu.Size = new System.Drawing.Size(113, 114);
this.copyModeMenu.ItemClicked += new System.Windows.Forms.ToolStripItemClickedEventHandler(this.copyModeMenu_ItemClicked);
//
// videoCopyModeMenuItem
//
this.videoCopyModeMenuItem.Checked = true;
this.videoCopyModeMenuItem.CheckState = System.Windows.Forms.CheckState.Checked;
this.videoCopyModeMenuItem.Name = "videoCopyModeMenuItem";
this.videoCopyModeMenuItem.Size = new System.Drawing.Size(112, 22);
this.videoCopyModeMenuItem.Text = "Video";
//
// displayCopyModeMenuItem
//
this.displayCopyModeMenuItem.Name = "displayCopyModeMenuItem";
this.displayCopyModeMenuItem.Size = new System.Drawing.Size(112, 22);
this.displayCopyModeMenuItem.Text = "Display";
//
// parentCopyModeMenuItem
//
this.parentCopyModeMenuItem.Name = "parentCopyModeMenuItem";
this.parentCopyModeMenuItem.Size = new System.Drawing.Size(112, 22);
this.parentCopyModeMenuItem.Text = "Parent";
//
// formCopyModeMenuItem
//
this.formCopyModeMenuItem.Name = "formCopyModeMenuItem";
this.formCopyModeMenuItem.Size = new System.Drawing.Size(112, 22);
this.formCopyModeMenuItem.Text = "Form";
//
// screenCopyModeMenuItem
//
this.screenCopyModeMenuItem.Name = "screenCopyModeMenuItem";
this.screenCopyModeMenuItem.Size = new System.Drawing.Size(112, 22);
this.screenCopyModeMenuItem.Text = "Screen";
//
// toolStripSeparator1
//
this.toolStripSeparator1.Name = "toolStripSeparator1";
this.toolStripSeparator1.Size = new System.Drawing.Size(131, 6);
//
// openCopyMenuItem
//
this.openCopyMenuItem.Enabled = false;
this.openCopyMenuItem.Name = "openCopyMenuItem";
this.openCopyMenuItem.ShortcutKeys = System.Windows.Forms.Keys.F4;
this.openCopyMenuItem.Size = new System.Drawing.Size(134, 22);
this.openCopyMenuItem.Text = "Open";
this.openCopyMenuItem.Click += new System.EventHandler(this.openCopyMenuItem_Click);
//
// openWithCopyMenuItem
//
this.openWithCopyMenuItem.Enabled = false;
this.openWithCopyMenuItem.Name = "openWithCopyMenuItem";
this.openWithCopyMenuItem.ShortcutKeys = System.Windows.Forms.Keys.F5;
this.openWithCopyMenuItem.Size = new System.Drawing.Size(134, 22);
this.openWithCopyMenuItem.Text = "Open With…";
this.openWithCopyMenuItem.Click += new System.EventHandler(this.openWithMenuItem_Click);
//
// toolStripSeparator12
//
this.toolStripSeparator12.Name = "toolStripSeparator12";
this.toolStripSeparator12.Size = new System.Drawing.Size(131, 6);
//
// clearCopyMenuItem
//
this.clearCopyMenuItem.Enabled = false;
this.clearCopyMenuItem.Name = "clearCopyMenuItem";
this.clearCopyMenuItem.ShortcutKeys = ((System.Windows.Forms.Keys)((System.Windows.Forms.Keys.Shift | System.Windows.Forms.Keys.F3)));
this.clearCopyMenuItem.Size = new System.Drawing.Size(134, 22);
this.clearCopyMenuItem.Text = "Clear";
this.clearCopyMenuItem.Click += new System.EventHandler(this.clearCopyMenuItem_Click);
//
// screencopyMenuItem
//
this.screencopyMenuItem.DropDown = this.screenCopyMenu;
this.screencopyMenuItem.Name = "screencopyMenuItem";
this.screencopyMenuItem.Size = new System.Drawing.Size(155, 22);
this.screencopyMenuItem.Text = "Screencopy";
//
// displayPanel
//
this.displayPanel.Anchor = ((System.Windows.Forms.AnchorStyles)((((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom)
| System.Windows.Forms.AnchorStyles.Left)
| System.Windows.Forms.AnchorStyles.Right)));
this.displayPanel.BackColor = System.Drawing.Color.FromArgb(((int)(((byte)(18)))), ((int)(((byte)(18)))), ((int)(((byte)(18)))));
this.displayPanel.ContextMenuStrip = this.displayMenu;
this.displayPanel.Location = new System.Drawing.Point(0, 0);
this.displayPanel.Name = "displayPanel";
this.displayPanel.Size = new System.Drawing.Size(652, 478);
this.displayPanel.TabIndex = 1;
this.toolTip1.SetToolTip(this.displayPanel, "Player.Display - used for displaying video and display overlays.");
//
// displayMenu
//
this.displayMenu.Items.AddRange(new System.Windows.Forms.ToolStripItem[] {
this.playDisplayMenuItem,
this.previousMenuItem,
this.nextMenuItem,
this.pauseMenuItem,
this.stopMenuItem,
this.toolStripSeparator8,
this.displayModeMenuItem,
this.fullScreenModeMenuItem,
this.toolStripSeparator10,
this.displayOverlayMenuItem,
this.overlayMenuMenuItem,
this.toolStripSeparator9,
this.repeatMenuItem,
this.toolStripSeparator20,
this.videoSizeMenuItem,
this.screencopyMenuItem,
this.toolStripSeparator17,
this.voiceRecorderMenuItem,
this.toolStripSeparator31,
this.systemMenuItem,
this.preferencesMenuItem,
this.toolStripSeparator11,
this.quitMenuItem});
this.displayMenu.Name = "displayMenu";
this.displayMenu.ShowImageMargin = false;
this.displayMenu.Size = new System.Drawing.Size(156, 398);
//
// previousMenuItem
//
this.previousMenuItem.Name = "previousMenuItem";
this.previousMenuItem.ShortcutKeys = ((System.Windows.Forms.Keys)((System.Windows.Forms.Keys.Control | System.Windows.Forms.Keys.B)));
this.previousMenuItem.Size = new System.Drawing.Size(155, 22);
this.previousMenuItem.Text = "Previous";
this.previousMenuItem.Click += new System.EventHandler(this.previousButton_Click);
//
// nextMenuItem
//
this.nextMenuItem.Name = "nextMenuItem";
this.nextMenuItem.ShortcutKeys = ((System.Windows.Forms.Keys)((System.Windows.Forms.Keys.Control | System.Windows.Forms.Keys.F)));
this.nextMenuItem.Size = new System.Drawing.Size(155, 22);
this.nextMenuItem.Text = "Next";
this.nextMenuItem.Click += new System.EventHandler(this.nextButton_Click);
//
// pauseMenuItem
//
this.pauseMenuItem.Name = "pauseMenuItem";
this.pauseMenuItem.ShortcutKeys = ((System.Windows.Forms.Keys)((System.Windows.Forms.Keys.Control | System.Windows.Forms.Keys.Space)));
this.pauseMenuItem.Size = new System.Drawing.Size(155, 22);
this.pauseMenuItem.Text = "Pause";
this.pauseMenuItem.Click += new System.EventHandler(this.pauseButton_Click);
//
// stopMenuItem
//
this.stopMenuItem.Name = "stopMenuItem";
this.stopMenuItem.Size = new System.Drawing.Size(155, 22);
this.stopMenuItem.Text = "Stop";
this.stopMenuItem.Click += new System.EventHandler(this.stopButton_Click);
//
// toolStripSeparator8
//
this.toolStripSeparator8.Name = "toolStripSeparator8";
this.toolStripSeparator8.Size = new System.Drawing.Size(152, 6);
//
// toolStripSeparator10
//
this.toolStripSeparator10.Name = "toolStripSeparator10";
this.toolStripSeparator10.Size = new System.Drawing.Size(152, 6);
//
// overlayMenuMenuItem
//
this.overlayMenuMenuItem.Name = "overlayMenuMenuItem";
this.overlayMenuMenuItem.Size = new System.Drawing.Size(155, 22);
this.overlayMenuMenuItem.Text = "Show Overlay Menu";
this.overlayMenuMenuItem.Click += new System.EventHandler(this.overlayMenuMenuItem_Click);
//
// toolStripSeparator9
//
this.toolStripSeparator9.Name = "toolStripSeparator9";
this.toolStripSeparator9.Size = new System.Drawing.Size(152, 6);
//
// toolStripSeparator20
//
this.toolStripSeparator20.Name = "toolStripSeparator20";
this.toolStripSeparator20.Size = new System.Drawing.Size(152, 6);
//
// videoSizeMenuItem
//
this.videoSizeMenuItem.DropDownItems.AddRange(new System.Windows.Forms.ToolStripItem[] {
this.zoomVideoMenuItem,
this.moveVideoMenuItem,
this.stretchVideoMenuItem});
this.videoSizeMenuItem.Name = "videoSizeMenuItem";
this.videoSizeMenuItem.Size = new System.Drawing.Size(155, 22);
this.videoSizeMenuItem.Text = "Video Resizing";
//
// zoomVideoMenuItem
//
this.zoomVideoMenuItem.DropDownItems.AddRange(new System.Windows.Forms.ToolStripItem[] {
this.zoomInMenuItem,
this.zoomOutToolMenuItem});
this.zoomVideoMenuItem.Name = "zoomVideoMenuItem";
this.zoomVideoMenuItem.Size = new System.Drawing.Size(144, 22);
this.zoomVideoMenuItem.Text = "Zoom Video";
//
// zoomInMenuItem
//
this.zoomInMenuItem.Name = "zoomInMenuItem";
this.zoomInMenuItem.Size = new System.Drawing.Size(129, 22);
this.zoomInMenuItem.Text = "Zoom In";
this.zoomInMenuItem.Click += new System.EventHandler(this.zoomInMenuItem_Click);
//
// zoomOutToolMenuItem
//
this.zoomOutToolMenuItem.Name = "zoomOutToolMenuItem";
this.zoomOutToolMenuItem.Size = new System.Drawing.Size(129, 22);
this.zoomOutToolMenuItem.Text = "Zoom Out";
this.zoomOutToolMenuItem.Click += new System.EventHandler(this.zoomOutMenuItem_Click);
//
// moveVideoMenuItem
//
this.moveVideoMenuItem.DropDownItems.AddRange(new System.Windows.Forms.ToolStripItem[] {
this.moveUpMenuItem,
this.moveDownMenuItem,
this.toolStripSeparator32,
this.moveLeftMenuItem,
this.moveRightMenuItem});
this.moveVideoMenuItem.Name = "moveVideoMenuItem";
this.moveVideoMenuItem.Size = new System.Drawing.Size(144, 22);
this.moveVideoMenuItem.Text = "Move Video";
//
// moveUpMenuItem
//
this.moveUpMenuItem.Name = "moveUpMenuItem";
this.moveUpMenuItem.Size = new System.Drawing.Size(138, 22);
this.moveUpMenuItem.Text = "Move Up";
this.moveUpMenuItem.Click += new System.EventHandler(this.moveUpMenuItem_Click);
//
// moveDownMenuItem
//
this.moveDownMenuItem.Name = "moveDownMenuItem";
this.moveDownMenuItem.Size = new System.Drawing.Size(138, 22);
this.moveDownMenuItem.Text = "Move Down";
this.moveDownMenuItem.Click += new System.EventHandler(this.moveDownMenuItem_Click);
//
// toolStripSeparator32
//
this.toolStripSeparator32.Name = "toolStripSeparator32";
this.toolStripSeparator32.Size = new System.Drawing.Size(135, 6);
//
// moveLeftMenuItem
//
this.moveLeftMenuItem.Name = "moveLeftMenuItem";
this.moveLeftMenuItem.Size = new System.Drawing.Size(138, 22);
this.moveLeftMenuItem.Text = "Move Left";
this.moveLeftMenuItem.Click += new System.EventHandler(this.moveLeftMenuItem_Click);
//
// moveRightMenuItem
//
this.moveRightMenuItem.Name = "moveRightMenuItem";
this.moveRightMenuItem.Size = new System.Drawing.Size(138, 22);
this.moveRightMenuItem.Text = "Move Right";
this.moveRightMenuItem.Click += new System.EventHandler(this.moveRightMenuItem_Click);
//
// stretchVideoMenuItem
//
this.stretchVideoMenuItem.DropDownItems.AddRange(new System.Windows.Forms.ToolStripItem[] {
this.stretchHeightMenuItem,
this.shrinkHeightMenuItem,
this.toolStripSeparator33,
this.stretchWidthMenuItem,
this.shrinkWidthMenuItem});
this.stretchVideoMenuItem.Name = "stretchVideoMenuItem";
this.stretchVideoMenuItem.Size = new System.Drawing.Size(144, 22);
this.stretchVideoMenuItem.Text = "Stretch Video";
//
// stretchHeightMenuItem
//
this.stretchHeightMenuItem.Name = "stretchHeightMenuItem";
this.stretchHeightMenuItem.Size = new System.Drawing.Size(150, 22);
this.stretchHeightMenuItem.Text = "Stretch Height";
this.stretchHeightMenuItem.Click += new System.EventHandler(this.stretchHeightMenuItem_Click);
//
// shrinkHeightMenuItem
//
this.shrinkHeightMenuItem.Name = "shrinkHeightMenuItem";
this.shrinkHeightMenuItem.Size = new System.Drawing.Size(150, 22);
this.shrinkHeightMenuItem.Text = "Shrink Height";
this.shrinkHeightMenuItem.Click += new System.EventHandler(this.shrinkHeightMenuItem_Click);
//
// toolStripSeparator33
//
this.toolStripSeparator33.Name = "toolStripSeparator33";
this.toolStripSeparator33.Size = new System.Drawing.Size(147, 6);
//
// stretchWidthMenuItem
//
this.stretchWidthMenuItem.Name = "stretchWidthMenuItem";
this.stretchWidthMenuItem.Size = new System.Drawing.Size(150, 22);
this.stretchWidthMenuItem.Text = "Stretch Width";
this.stretchWidthMenuItem.Click += new System.EventHandler(this.stretchWidthMenuItem_Click);
//
// shrinkWidthMenuItem
//
this.shrinkWidthMenuItem.Name = "shrinkWidthMenuItem";
this.shrinkWidthMenuItem.Size = new System.Drawing.Size(150, 22);
this.shrinkWidthMenuItem.Text = "Shrink Width";
this.shrinkWidthMenuItem.Click += new System.EventHandler(this.shrinkWidthMenuItem_Click);
//
// toolStripSeparator17
//
this.toolStripSeparator17.Name = "toolStripSeparator17";
this.toolStripSeparator17.Size = new System.Drawing.Size(152, 6);
//
// voiceRecorderMenuItem
//
this.voiceRecorderMenuItem.DropDownItems.AddRange(new System.Windows.Forms.ToolStripItem[] {
this.showRecorderMenuItem,
this.showPlayerMenuItem,
this.toolStripSeparator27,
this.showAllMenuItem,
this.hideAllMenuItem,
this.toolStripSeparator30,
this.closeRecorderMenuItem});
this.voiceRecorderMenuItem.Name = "voiceRecorderMenuItem";
this.voiceRecorderMenuItem.Size = new System.Drawing.Size(155, 22);
this.voiceRecorderMenuItem.Text = "Voice Recorder";
//
// showRecorderMenuItem
//
this.showRecorderMenuItem.Name = "showRecorderMenuItem";
this.showRecorderMenuItem.Size = new System.Drawing.Size(153, 22);
this.showRecorderMenuItem.Text = "Show Recorder";
this.showRecorderMenuItem.Click += new System.EventHandler(this.showRecorderMenuItem_Click);
//
// showPlayerMenuItem
//
this.showPlayerMenuItem.Name = "showPlayerMenuItem";
this.showPlayerMenuItem.Size = new System.Drawing.Size(153, 22);
this.showPlayerMenuItem.Text = "Show Player";
this.showPlayerMenuItem.Click += new System.EventHandler(this.showPlayerMenuItem_Click);
//
// toolStripSeparator27
//
this.toolStripSeparator27.Name = "toolStripSeparator27";
this.toolStripSeparator27.Size = new System.Drawing.Size(150, 6);
//
// showAllMenuItem
//
this.showAllMenuItem.Name = "showAllMenuItem";
this.showAllMenuItem.Size = new System.Drawing.Size(153, 22);
this.showAllMenuItem.Text = "Show All";
this.showAllMenuItem.Click += new System.EventHandler(this.showAllMenuItem_Click);
//
// hideAllMenuItem
//
this.hideAllMenuItem.Name = "hideAllMenuItem";
this.hideAllMenuItem.Size = new System.Drawing.Size(153, 22);
this.hideAllMenuItem.Text = "Hide All";
this.hideAllMenuItem.Click += new System.EventHandler(this.hideAllMenuItem_Click);
//
// toolStripSeparator30
//
this.toolStripSeparator30.Name = "toolStripSeparator30";
this.toolStripSeparator30.Size = new System.Drawing.Size(150, 6);
//
// closeRecorderMenuItem
//
this.closeRecorderMenuItem.Name = "closeRecorderMenuItem";
this.closeRecorderMenuItem.Size = new System.Drawing.Size(153, 22);
this.closeRecorderMenuItem.Text = "Close All";
this.closeRecorderMenuItem.Click += new System.EventHandler(this.closeRecorderMenuItem_Click);
//
// toolStripSeparator31
//
this.toolStripSeparator31.Name = "toolStripSeparator31";
this.toolStripSeparator31.Size = new System.Drawing.Size(152, 6);
//
// systemMenuItem
//
this.systemMenuItem.DropDownItems.AddRange(new System.Windows.Forms.ToolStripItem[] {
this.systemDisplayMenuItem,
this.toolStripSeparator26,
this.systemSoundMenuItem,
this.systemMixerMenuItem});
this.systemMenuItem.Name = "systemMenuItem";
this.systemMenuItem.Size = new System.Drawing.Size(155, 22);
this.systemMenuItem.Text = "System Settings";
//
// systemDisplayMenuItem
//
this.systemDisplayMenuItem.Name = "systemDisplayMenuItem";
this.systemDisplayMenuItem.Size = new System.Drawing.Size(156, 22);
this.systemDisplayMenuItem.Text = "Display…";
this.systemDisplayMenuItem.Click += new System.EventHandler(this.displayModeLabel_Click);
//
// toolStripSeparator26
//
this.toolStripSeparator26.Name = "toolStripSeparator26";
this.toolStripSeparator26.Size = new System.Drawing.Size(153, 6);
//
// systemSoundMenuItem
//
this.systemSoundMenuItem.Name = "systemSoundMenuItem";
this.systemSoundMenuItem.Size = new System.Drawing.Size(156, 22);
this.systemSoundMenuItem.Text = "Sound…";
this.systemSoundMenuItem.Click += new System.EventHandler(this.volumeLabelPanel_Click);
//
// systemMixerMenuItem
//
this.systemMixerMenuItem.Name = "systemMixerMenuItem";
this.systemMixerMenuItem.Size = new System.Drawing.Size(156, 22);
this.systemMixerMenuItem.Text = "Volume Mixer…";
this.systemMixerMenuItem.Click += new System.EventHandler(this.balanceLabelPanel_Click);
//
// preferencesMenuItem
//
this.preferencesMenuItem.Name = "preferencesMenuItem";
this.preferencesMenuItem.Size = new System.Drawing.Size(155, 22);
this.preferencesMenuItem.Text = "Preferences…";
this.preferencesMenuItem.Click += new System.EventHandler(this.preferencesMenuItem_Click);
//
// toolStripSeparator11
//
this.toolStripSeparator11.Name = "toolStripSeparator11";
this.toolStripSeparator11.Size = new System.Drawing.Size(152, 6);
//
// quitMenuItem
//
this.quitMenuItem.Name = "quitMenuItem";
this.quitMenuItem.ShortcutKeys = ((System.Windows.Forms.Keys)((System.Windows.Forms.Keys.Control | System.Windows.Forms.Keys.Q)));
this.quitMenuItem.Size = new System.Drawing.Size(155, 22);
this.quitMenuItem.Text = "Quit";
this.quitMenuItem.Click += new System.EventHandler(this.quitMenuItem_Click);
//
// shuttleSlider
//
this.shuttleSlider.AutoSize = false;
this.shuttleSlider.Location = new System.Drawing.Point(2, 31);
this.shuttleSlider.Name = "shuttleSlider";
this.shuttleSlider.Size = new System.Drawing.Size(135, 45);
this.shuttleSlider.TabIndex = 1;
this.shuttleSlider.TickStyle = System.Windows.Forms.TickStyle.Both;
this.toolTip1.SetToolTip(this.shuttleSlider, "Player.ShuttleSlider - changes the media playback position by (video) frames.");
this.shuttleSlider.Value = 5;
//
// copyModeLabel
//
this.copyModeLabel.BackColor = System.Drawing.Color.Transparent;
this.copyModeLabel.ContextMenuStrip = this.copyModeMenu;
this.copyModeLabel.ForeColor = System.Drawing.Color.FromArgb(((int)(((byte)(189)))), ((int)(((byte)(159)))), ((int)(((byte)(87)))));
this.copyModeLabel.Location = new System.Drawing.Point(68, 3);
this.copyModeLabel.Name = "copyModeLabel";
this.copyModeLabel.Size = new System.Drawing.Size(51, 13);
this.copyModeLabel.TabIndex = 1;
this.copyModeLabel.Text = "Video";
this.copyModeLabel.TextAlign = System.Drawing.ContentAlignment.TopRight;
this.toolTip1.SetToolTip(this.copyModeLabel, "Player.ScreenCopyMode - selects the part of the screen to copy.");
//
// stretchRightButton
//
this.stretchRightButton.BorderColor = System.Drawing.Color.FromArgb(((int)(((byte)(64)))), ((int)(((byte)(64)))), ((int)(((byte)(64)))));
this.stretchRightButton.Font = new System.Drawing.Font("Wingdings 3", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(2)));
this.stretchRightButton.ForeColor = System.Drawing.Color.FromArgb(((int)(((byte)(189)))), ((int)(((byte)(159)))), ((int)(((byte)(87)))));
this.stretchRightButton.Location = new System.Drawing.Point(101, 117);
this.stretchRightButton.Name = "stretchRightButton";
this.stretchRightButton.Size = new System.Drawing.Size(29, 20);
this.stretchRightButton.TabIndex = 12;
this.stretchRightButton.Text = "Æ";
this.toolTip1.SetToolTip(this.stretchRightButton, "Player.VideoStretch - changes the size of the video inside the player\'s display." +
"");
this.stretchRightButton.UseVisualStyleBackColor = true;
this.stretchRightButton.MouseDown += new System.Windows.Forms.MouseEventHandler(this.stretchRightButton_MouseDown);
//
// stretchLeftButton
//
this.stretchLeftButton.BorderColor = System.Drawing.Color.FromArgb(((int)(((byte)(64)))), ((int)(((byte)(64)))), ((int)(((byte)(64)))));
this.stretchLeftButton.Font = new System.Drawing.Font("Wingdings 3", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(2)));
this.stretchLeftButton.ForeColor = System.Drawing.Color.FromArgb(((int)(((byte)(189)))), ((int)(((byte)(159)))), ((int)(((byte)(87)))));
this.stretchLeftButton.Location = new System.Drawing.Point(70, 117);
this.stretchLeftButton.Name = "stretchLeftButton";
this.stretchLeftButton.Size = new System.Drawing.Size(29, 20);
this.stretchLeftButton.TabIndex = 11;
this.stretchLeftButton.Text = "Å";
this.toolTip1.SetToolTip(this.stretchLeftButton, "Player.VideoStretch - changes the size of the video inside the player\'s display." +
"");
this.stretchLeftButton.UseVisualStyleBackColor = true;
this.stretchLeftButton.MouseDown += new System.Windows.Forms.MouseEventHandler(this.stretchLeftButton_MouseDown);
//
// stretchDownButton
//
this.stretchDownButton.BorderColor = System.Drawing.Color.FromArgb(((int)(((byte)(64)))), ((int)(((byte)(64)))), ((int)(((byte)(64)))));
this.stretchDownButton.Font = new System.Drawing.Font("Wingdings 3", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(2)));
this.stretchDownButton.ForeColor = System.Drawing.Color.FromArgb(((int)(((byte)(189)))), ((int)(((byte)(159)))), ((int)(((byte)(87)))));
this.stretchDownButton.Location = new System.Drawing.Point(40, 117);
this.stretchDownButton.Name = "stretchDownButton";
this.stretchDownButton.Size = new System.Drawing.Size(28, 20);
this.stretchDownButton.TabIndex = 10;
this.stretchDownButton.Text = "È";
this.toolTip1.SetToolTip(this.stretchDownButton, "Player.VideoStretch - changes the size of the video inside the player\'s display." +
"");
this.stretchDownButton.UseVisualStyleBackColor = true;
this.stretchDownButton.MouseDown += new System.Windows.Forms.MouseEventHandler(this.stretchDownButton_MouseDown);
//
// stretchUpButton
//
this.stretchUpButton.BorderColor = System.Drawing.Color.FromArgb(((int)(((byte)(64)))), ((int)(((byte)(64)))), ((int)(((byte)(64)))));
this.stretchUpButton.ForeColor = System.Drawing.Color.FromArgb(((int)(((byte)(189)))), ((int)(((byte)(159)))), ((int)(((byte)(87)))));
this.stretchUpButton.Location = new System.Drawing.Point(9, 117);
this.stretchUpButton.Name = "stretchUpButton";
this.stretchUpButton.Size = new System.Drawing.Size(29, 20);
this.stretchUpButton.TabIndex = 9;
this.stretchUpButton.Text = "Ç";
this.toolTip1.SetToolTip(this.stretchUpButton, "Player.VideoStretch - changes the size of the video inside the player\'s display." +
"");
this.stretchUpButton.UseVisualStyleBackColor = true;
this.stretchUpButton.MouseDown += new System.Windows.Forms.MouseEventHandler(this.stretchUpButton_MouseDown);
//
// moveRightButton
//
this.moveRightButton.BorderColor = System.Drawing.Color.FromArgb(((int)(((byte)(64)))), ((int)(((byte)(64)))), ((int)(((byte)(64)))));
this.moveRightButton.Font = new System.Drawing.Font("Wingdings 3", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(2)));
this.moveRightButton.ForeColor = System.Drawing.Color.FromArgb(((int)(((byte)(189)))), ((int)(((byte)(159)))), ((int)(((byte)(87)))));
this.moveRightButton.Location = new System.Drawing.Point(101, 73);
this.moveRightButton.Name = "moveRightButton";
this.moveRightButton.Size = new System.Drawing.Size(29, 20);
this.moveRightButton.TabIndex = 7;
this.moveRightButton.Text = "Æ";
this.toolTip1.SetToolTip(this.moveRightButton, "Player.VideoMove - moves the video inside the player\'s display.");
this.moveRightButton.UseVisualStyleBackColor = true;
this.moveRightButton.MouseDown += new System.Windows.Forms.MouseEventHandler(this.moveRightButton_MouseDown);
//
// moveLeftButton
//
this.moveLeftButton.BorderColor = System.Drawing.Color.FromArgb(((int)(((byte)(64)))), ((int)(((byte)(64)))), ((int)(((byte)(64)))));
this.moveLeftButton.Font = new System.Drawing.Font("Wingdings 3", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(2)));
this.moveLeftButton.ForeColor = System.Drawing.Color.FromArgb(((int)(((byte)(189)))), ((int)(((byte)(159)))), ((int)(((byte)(87)))));
this.moveLeftButton.Location = new System.Drawing.Point(70, 73);
this.moveLeftButton.Name = "moveLeftButton";
this.moveLeftButton.Size = new System.Drawing.Size(29, 20);
this.moveLeftButton.TabIndex = 6;
this.moveLeftButton.Text = "Å";
this.toolTip1.SetToolTip(this.moveLeftButton, "Player.VideoMove - moves the video inside the player\'s display.");
this.moveLeftButton.UseVisualStyleBackColor = true;
this.moveLeftButton.MouseDown += new System.Windows.Forms.MouseEventHandler(this.moveLeftButton_MouseDown);
//
// moveDownButton
//
this.moveDownButton.BorderColor = System.Drawing.Color.FromArgb(((int)(((byte)(64)))), ((int)(((byte)(64)))), ((int)(((byte)(64)))));
this.moveDownButton.Font = new System.Drawing.Font("Wingdings 3", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(2)));
this.moveDownButton.ForeColor = System.Drawing.Color.FromArgb(((int)(((byte)(189)))), ((int)(((byte)(159)))), ((int)(((byte)(87)))));
this.moveDownButton.Location = new System.Drawing.Point(40, 73);
this.moveDownButton.Name = "moveDownButton";
this.moveDownButton.Size = new System.Drawing.Size(28, 20);
this.moveDownButton.TabIndex = 5;
this.moveDownButton.Text = "È";
this.toolTip1.SetToolTip(this.moveDownButton, "Player.VideoMove - moves the video inside the player\'s display.");
this.moveDownButton.UseVisualStyleBackColor = true;
this.moveDownButton.MouseDown += new System.Windows.Forms.MouseEventHandler(this.moveDownButton_MouseDown);
//
// moveUpButton
//
this.moveUpButton.BorderColor = System.Drawing.Color.FromArgb(((int)(((byte)(64)))), ((int)(((byte)(64)))), ((int)(((byte)(64)))));
this.moveUpButton.Font = new System.Drawing.Font("Wingdings 3", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(2)));
this.moveUpButton.ForeColor = System.Drawing.Color.FromArgb(((int)(((byte)(189)))), ((int)(((byte)(159)))), ((int)(((byte)(87)))));
this.moveUpButton.Location = new System.Drawing.Point(9, 73);
this.moveUpButton.Name = "moveUpButton";
this.moveUpButton.Size = new System.Drawing.Size(29, 20);
this.moveUpButton.TabIndex = 4;
this.moveUpButton.Text = "Ç";
this.toolTip1.SetToolTip(this.moveUpButton, "Player.VideoMove - moves the video inside the player\'s display.");
this.moveUpButton.UseVisualStyleBackColor = true;
this.moveUpButton.MouseDown += new System.Windows.Forms.MouseEventHandler(this.moveUpButton_MouseDown);
//
// zoomOutButton
//
this.zoomOutButton.BackColor = System.Drawing.Color.FromArgb(((int)(((byte)(32)))), ((int)(((byte)(32)))), ((int)(((byte)(32)))));
this.zoomOutButton.BorderColor = System.Drawing.Color.FromArgb(((int)(((byte)(64)))), ((int)(((byte)(64)))), ((int)(((byte)(64)))));
this.zoomOutButton.Font = new System.Drawing.Font("Wingdings 3", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(2)));
this.zoomOutButton.ForeColor = System.Drawing.Color.FromArgb(((int)(((byte)(189)))), ((int)(((byte)(159)))), ((int)(((byte)(87)))));
this.zoomOutButton.Location = new System.Drawing.Point(70, 29);
this.zoomOutButton.Name = "zoomOutButton";
this.zoomOutButton.Size = new System.Drawing.Size(60, 20);
this.zoomOutButton.TabIndex = 2;
this.zoomOutButton.Text = "È";
this.toolTip1.SetToolTip(this.zoomOutButton, "Player.VideoZoom - changes the size of the video inside the player\'s display.");
this.zoomOutButton.UseVisualStyleBackColor = true;
this.zoomOutButton.MouseDown += new System.Windows.Forms.MouseEventHandler(this.zoomOutButton_MouseDown);
//
// zoomInButton
//
this.zoomInButton.BackColor = System.Drawing.Color.FromArgb(((int)(((byte)(32)))), ((int)(((byte)(32)))), ((int)(((byte)(32)))));
this.zoomInButton.BorderColor = System.Drawing.Color.FromArgb(((int)(((byte)(64)))), ((int)(((byte)(64)))), ((int)(((byte)(64)))));
this.zoomInButton.Font = new System.Drawing.Font("Wingdings 3", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(2)));
this.zoomInButton.ForeColor = System.Drawing.Color.FromArgb(((int)(((byte)(189)))), ((int)(((byte)(159)))), ((int)(((byte)(87)))));
this.zoomInButton.Location = new System.Drawing.Point(9, 29);
this.zoomInButton.Name = "zoomInButton";
this.zoomInButton.Size = new System.Drawing.Size(59, 20);
this.zoomInButton.TabIndex = 1;
this.zoomInButton.Text = "Ç";
this.toolTip1.SetToolTip(this.zoomInButton, "Player.VideoZoom - changes the size of the video inside the player\'s display.");
this.zoomInButton.UseVisualStyleBackColor = true;
this.zoomInButton.MouseDown += new System.Windows.Forms.MouseEventHandler(this.zoomInButton_MouseDown);
//
// balanceSlider
//
this.balanceSlider.AutoSize = false;
this.balanceSlider.ContextMenuStrip = this.sliderMenu;
this.balanceSlider.Location = new System.Drawing.Point(2, 99);
this.balanceSlider.Name = "balanceSlider";
this.balanceSlider.Size = new System.Drawing.Size(135, 45);
this.balanceSlider.TabIndex = 3;
this.balanceSlider.TickStyle = System.Windows.Forms.TickStyle.Both;
this.toolTip1.SetToolTip(this.balanceSlider, "Player.AudioBalanceSlider - sets the player\'s audio balance.");
this.balanceSlider.Value = 5;
//
// volumeSlider
//
this.volumeSlider.AutoSize = false;
this.volumeSlider.ContextMenuStrip = this.sliderMenu;
this.volumeSlider.Location = new System.Drawing.Point(2, 31);
this.volumeSlider.Name = "volumeSlider";
this.volumeSlider.Size = new System.Drawing.Size(135, 45);
this.volumeSlider.TabIndex = 1;
this.volumeSlider.TickStyle = System.Windows.Forms.TickStyle.Both;
this.toolTip1.SetToolTip(this.volumeSlider, "Player.AudioVolumeSlider - sets the player\'s audio volume.");
this.volumeSlider.Value = 10;
//
// audioBalanceLabelText
//
this.audioBalanceLabelText.AutoSize = true;
this.audioBalanceLabelText.BackColor = System.Drawing.Color.Transparent;
this.audioBalanceLabelText.ForeColor = System.Drawing.Color.FromArgb(((int)(((byte)(189)))), ((int)(((byte)(159)))), ((int)(((byte)(87)))));
this.audioBalanceLabelText.Location = new System.Drawing.Point(3, 4);
this.audioBalanceLabelText.Name = "audioBalanceLabelText";
this.audioBalanceLabelText.Size = new System.Drawing.Size(46, 13);
this.audioBalanceLabelText.TabIndex = 0;
this.audioBalanceLabelText.Text = "Balance";
this.toolTip1.SetToolTip(this.audioBalanceLabelText, "Player.ShowAudioMixerPanel - opens the system\'s Volume Mixer Control Panel.");
this.audioBalanceLabelText.Click += new System.EventHandler(this.balanceLabelPanel_Click);
//
// audioVolumeLabelText
//
this.audioVolumeLabelText.AutoSize = true;
this.audioVolumeLabelText.BackColor = System.Drawing.Color.Transparent;
this.audioVolumeLabelText.Cursor = System.Windows.Forms.Cursors.Hand;
this.audioVolumeLabelText.ForeColor = System.Drawing.Color.FromArgb(((int)(((byte)(189)))), ((int)(((byte)(159)))), ((int)(((byte)(87)))));
this.audioVolumeLabelText.Location = new System.Drawing.Point(39, 4);
this.audioVolumeLabelText.Name = "audioVolumeLabelText";
this.audioVolumeLabelText.Size = new System.Drawing.Size(34, 13);
this.audioVolumeLabelText.TabIndex = 1;
this.audioVolumeLabelText.Text = "Audio";
this.toolTip1.SetToolTip(this.audioVolumeLabelText, "Player.ShowAudioOutputPanel - opens the system\'s Sound Control Panel.");
this.audioVolumeLabelText.Click += new System.EventHandler(this.volumeLabelPanel_Click);
//
// positionSlider
//
this.positionSlider.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Left)
| System.Windows.Forms.AnchorStyles.Right)));
this.positionSlider.AutoSize = false;
this.positionSlider.BackColor = System.Drawing.Color.FromArgb(((int)(((byte)(18)))), ((int)(((byte)(18)))), ((int)(((byte)(18)))));
this.positionSlider.ContextMenuStrip = this.positionSliderMenu;
this.positionSlider.Location = new System.Drawing.Point(81, 2);
this.positionSlider.Name = "positionSlider";
this.positionSlider.Size = new System.Drawing.Size(488, 26);
this.positionSlider.TabIndex = 1;
this.toolTip1.SetToolTip(this.positionSlider, "Player.PositionSlider - shows and allows changing of the playback position of med" +
"ia.");
//
// positionSliderMenu
//
this.positionSliderMenu.Items.AddRange(new System.Windows.Forms.ToolStripItem[] {
this.sliderAlwaysVisibleMenuItem,
this.sliderShowsProgressMenuItem,
this.sliderSeekLiveUpdateMenuItem,
this.toolStripSeparator13,
this.markStartPositionMenuItem,
this.markEndPositionMenuItem,
this.toolStripSeparator14,
this.mark1MenuItem,
this.goToMark1MenuItem,
this.toolStripSeparator34,
this.mark2MenuItem,
this.goToMark2MenuItem,
this.toolStripSeparator35,
this.goToStartMenuItem});
this.positionSliderMenu.Name = "positionSliderMenu";
this.positionSliderMenu.Size = new System.Drawing.Size(214, 248);
//
// sliderAlwaysVisibleMenuItem
//
this.sliderAlwaysVisibleMenuItem.Checked = true;
this.sliderAlwaysVisibleMenuItem.CheckState = System.Windows.Forms.CheckState.Checked;
this.sliderAlwaysVisibleMenuItem.Name = "sliderAlwaysVisibleMenuItem";
this.sliderAlwaysVisibleMenuItem.Size = new System.Drawing.Size(213, 22);
this.sliderAlwaysVisibleMenuItem.Text = "Slider Always Visible";
this.sliderAlwaysVisibleMenuItem.Click += new System.EventHandler(this.sliderAlwayVisibleMenuItem_Click);
//
// sliderShowsProgressMenuItem
//
this.sliderShowsProgressMenuItem.Name = "sliderShowsProgressMenuItem";
this.sliderShowsProgressMenuItem.Size = new System.Drawing.Size(213, 22);
this.sliderShowsProgressMenuItem.Text = "Slider Shows Progress";
this.sliderShowsProgressMenuItem.Click += new System.EventHandler(this.sliderShowsProgressMenuItem_Click);
//
// sliderSeekLiveUpdateMenuItem
//
this.sliderSeekLiveUpdateMenuItem.Checked = true;
this.sliderSeekLiveUpdateMenuItem.CheckState = System.Windows.Forms.CheckState.Checked;
this.sliderSeekLiveUpdateMenuItem.Name = "sliderSeekLiveUpdateMenuItem";
this.sliderSeekLiveUpdateMenuItem.Size = new System.Drawing.Size(213, 22);
this.sliderSeekLiveUpdateMenuItem.Text = "Slider Seek Live Update";
this.sliderSeekLiveUpdateMenuItem.Click += new System.EventHandler(this.sliderSeekLiveUpdateMenuItem_Click);
//
// toolStripSeparator13
//
this.toolStripSeparator13.Name = "toolStripSeparator13";
this.toolStripSeparator13.Size = new System.Drawing.Size(210, 6);
//
// markStartPositionMenuItem
//
this.markStartPositionMenuItem.Enabled = false;
this.markStartPositionMenuItem.Name = "markStartPositionMenuItem";
this.markStartPositionMenuItem.Size = new System.Drawing.Size(213, 22);
this.markStartPositionMenuItem.Text = "Mark Repeat Start Position";
this.markStartPositionMenuItem.Click += new System.EventHandler(this.markStartPositionMenuItem_Click);
//
// markEndPositionMenuItem
//
this.markEndPositionMenuItem.Enabled = false;
this.markEndPositionMenuItem.Name = "markEndPositionMenuItem";
this.markEndPositionMenuItem.Size = new System.Drawing.Size(213, 22);
this.markEndPositionMenuItem.Text = "Mark Repeat End Position";
this.markEndPositionMenuItem.Click += new System.EventHandler(this.markEndPositionMenuItem_Click);
//
// toolStripSeparator14
//
this.toolStripSeparator14.Name = "toolStripSeparator14";
this.toolStripSeparator14.Size = new System.Drawing.Size(210, 6);
//
// mark1MenuItem
//
this.mark1MenuItem.Enabled = false;
this.mark1MenuItem.Name = "mark1MenuItem";
this.mark1MenuItem.Size = new System.Drawing.Size(213, 22);
this.mark1MenuItem.Text = "Mark #1";
this.mark1MenuItem.Click += new System.EventHandler(this.mark1MenuItem_Click);
//
// goToMark1MenuItem
//
this.goToMark1MenuItem.Enabled = false;
this.goToMark1MenuItem.Name = "goToMark1MenuItem";
this.goToMark1MenuItem.Size = new System.Drawing.Size(213, 22);
this.goToMark1MenuItem.Text = "Go to Mark #1";
this.goToMark1MenuItem.Click += new System.EventHandler(this.goToMark1MenuItem_Click);
//
// toolStripSeparator34
//
this.toolStripSeparator34.Name = "toolStripSeparator34";
this.toolStripSeparator34.Size = new System.Drawing.Size(210, 6);
//
// mark2MenuItem
//
this.mark2MenuItem.Enabled = false;
this.mark2MenuItem.Name = "mark2MenuItem";
this.mark2MenuItem.Size = new System.Drawing.Size(213, 22);
this.mark2MenuItem.Text = "Mark #2";
this.mark2MenuItem.Click += new System.EventHandler(this.mark2MenuItem_Click);
//
// goToMark2MenuItem
//
this.goToMark2MenuItem.Enabled = false;
this.goToMark2MenuItem.Name = "goToMark2MenuItem";
this.goToMark2MenuItem.Size = new System.Drawing.Size(213, 22);
this.goToMark2MenuItem.Text = "Go to Mark #2";
this.goToMark2MenuItem.Click += new System.EventHandler(this.goToMark2MenuItem_Click);
//
// toolStripSeparator35
//
this.toolStripSeparator35.Name = "toolStripSeparator35";
this.toolStripSeparator35.Size = new System.Drawing.Size(210, 6);
//
// goToStartMenuItem
//
this.goToStartMenuItem.Enabled = false;
this.goToStartMenuItem.Name = "goToStartMenuItem";
this.goToStartMenuItem.Size = new System.Drawing.Size(213, 22);
this.goToStartMenuItem.Text = "Go to Start Position";
this.goToStartMenuItem.Click += new System.EventHandler(this.goToStartMenuItem_Click);
//
// positionLabel2
//
this.positionLabel2.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Right)));
this.positionLabel2.BackColor = System.Drawing.Color.FromArgb(((int)(((byte)(18)))), ((int)(((byte)(18)))), ((int)(((byte)(18)))));
this.positionLabel2.ContextMenuStrip = this.positionSliderMenu;
this.positionLabel2.Font = new System.Drawing.Font("Microsoft Sans Serif", 14.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
this.positionLabel2.ForeColor = System.Drawing.Color.FromArgb(((int)(((byte)(189)))), ((int)(((byte)(159)))), ((int)(((byte)(87)))));
this.positionLabel2.Location = new System.Drawing.Point(569, 1);
this.positionLabel2.Name = "positionLabel2";
this.positionLabel2.Size = new System.Drawing.Size(81, 18);
this.positionLabel2.TabIndex = 2;
this.positionLabel2.Text = "00:00:00";
this.toolTip1.SetToolTip(this.positionLabel2, "Player.GetMediaLength - duration to end of media or to \'EndPosition\'.");
//
// positionLabel1
//
this.positionLabel1.BackColor = System.Drawing.Color.FromArgb(((int)(((byte)(18)))), ((int)(((byte)(18)))), ((int)(((byte)(18)))));
this.positionLabel1.ContextMenuStrip = this.positionSliderMenu;
this.positionLabel1.Font = new System.Drawing.Font("Microsoft Sans Serif", 14.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
this.positionLabel1.ForeColor = System.Drawing.Color.FromArgb(((int)(((byte)(189)))), ((int)(((byte)(159)))), ((int)(((byte)(87)))));
this.positionLabel1.Location = new System.Drawing.Point(3, 1);
this.positionLabel1.Name = "positionLabel1";
this.positionLabel1.Size = new System.Drawing.Size(82, 18);
this.positionLabel1.TabIndex = 0;
this.positionLabel1.Text = "00:00:00";
this.toolTip1.SetToolTip(this.positionLabel1, "Player.Position - duration from beginning of media or from \'StartPosition\'.");
//
// displayParentPanel
//
this.displayParentPanel.Anchor = ((System.Windows.Forms.AnchorStyles)((((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom)
| System.Windows.Forms.AnchorStyles.Left)
| System.Windows.Forms.AnchorStyles.Right)));
this.displayParentPanel.BackColor = System.Drawing.Color.FromArgb(((int)(((byte)(18)))), ((int)(((byte)(18)))), ((int)(((byte)(18)))));
this.displayParentPanel.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
this.displayParentPanel.Controls.Add(this.displayPanel);
this.displayParentPanel.Controls.Add(this.positionSliderPanel);
this.displayParentPanel.Location = new System.Drawing.Point(165, 8);
this.displayParentPanel.Name = "displayParentPanel";
this.displayParentPanel.Size = new System.Drawing.Size(654, 503);
this.displayParentPanel.TabIndex = 1;
//
// positionSliderPanel
//
this.positionSliderPanel.ContextMenuStrip = this.positionSliderMenu;
this.positionSliderPanel.Controls.Add(this.positionSlider);
this.positionSliderPanel.Controls.Add(this.positionLabel2);
this.positionSliderPanel.Controls.Add(this.positionLabel1);
this.positionSliderPanel.Dock = System.Windows.Forms.DockStyle.Bottom;
this.positionSliderPanel.Location = new System.Drawing.Point(0, 478);
this.positionSliderPanel.Name = "positionSliderPanel";
this.positionSliderPanel.Size = new System.Drawing.Size(652, 23);
this.positionSliderPanel.TabIndex = 0;
//
// rightFramePanel
//
this.rightFramePanel.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom)
| System.Windows.Forms.AnchorStyles.Right)));
this.rightFramePanel.BackColor = System.Drawing.Color.FromArgb(((int)(((byte)(18)))), ((int)(((byte)(18)))), ((int)(((byte)(18)))));
this.rightFramePanel.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
this.rightFramePanel.Controls.Add(this.shuttlePanel);
this.rightFramePanel.Controls.Add(this.sceencopyPanel);
this.rightFramePanel.Controls.Add(this.zoomPanel);
this.rightFramePanel.Controls.Add(this.audioPanel);
this.rightFramePanel.Location = new System.Drawing.Point(823, 8);
this.rightFramePanel.Name = "rightFramePanel";
this.rightFramePanel.Size = new System.Drawing.Size(154, 503);
this.rightFramePanel.TabIndex = 2;
//
// shuttlePanel
//
this.shuttlePanel.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom)
| System.Windows.Forms.AnchorStyles.Left)));
this.shuttlePanel.BackColor = System.Drawing.Color.FromArgb(((int)(((byte)(32)))), ((int)(((byte)(32)))), ((int)(((byte)(32)))));
this.shuttlePanel.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
this.shuttlePanel.Controls.Add(this.shuttleSlider);
this.shuttlePanel.Controls.Add(this.shuttleLabel);
this.shuttlePanel.Location = new System.Drawing.Point(6, 417);
this.shuttlePanel.Name = "shuttlePanel";
this.shuttlePanel.Size = new System.Drawing.Size(140, 78);
this.shuttlePanel.TabIndex = 3;
//
// shuttleLabel
//
this.shuttleLabel.ForeColor = System.Drawing.Color.FromArgb(((int)(((byte)(189)))), ((int)(((byte)(159)))), ((int)(((byte)(87)))));
this.shuttleLabel.Location = new System.Drawing.Point(9, 9);
this.shuttleLabel.Name = "shuttleLabel";
this.shuttleLabel.Size = new System.Drawing.Size(121, 21);
this.shuttleLabel.TabIndex = 0;
this.shuttleLabel.Text = "Shuttle";
this.shuttleLabel.TextAlign = System.Drawing.ContentAlignment.MiddleCenter;
//
// sceencopyPanel
//
this.sceencopyPanel.BackColor = System.Drawing.Color.FromArgb(((int)(((byte)(32)))), ((int)(((byte)(32)))), ((int)(((byte)(32)))));
this.sceencopyPanel.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
this.sceencopyPanel.Controls.Add(this.pictureBox1);
this.sceencopyPanel.Controls.Add(this.copyLabelPanel);
this.sceencopyPanel.Location = new System.Drawing.Point(6, 310);
this.sceencopyPanel.Name = "sceencopyPanel";
this.sceencopyPanel.Size = new System.Drawing.Size(140, 102);
this.sceencopyPanel.TabIndex = 2;
//
// copyLabelPanel
//
this.copyLabelPanel.Controls.Add(this.copyModeLabel);
this.copyLabelPanel.Controls.Add(this.copyModeLabelText);
this.copyLabelPanel.Location = new System.Drawing.Point(9, 10);
this.copyLabelPanel.Name = "copyLabelPanel";
this.copyLabelPanel.Size = new System.Drawing.Size(121, 22);
this.copyLabelPanel.TabIndex = 0;
//
// copyModeLabelText
//
this.copyModeLabelText.AutoSize = true;
this.copyModeLabelText.BackColor = System.Drawing.Color.Transparent;
this.copyModeLabelText.ForeColor = System.Drawing.Color.FromArgb(((int)(((byte)(189)))), ((int)(((byte)(159)))), ((int)(((byte)(87)))));
this.copyModeLabelText.Location = new System.Drawing.Point(3, 3);
this.copyModeLabelText.Name = "copyModeLabelText";
this.copyModeLabelText.Size = new System.Drawing.Size(64, 13);
this.copyModeLabelText.TabIndex = 0;
this.copyModeLabelText.Text = "Screencopy";
//
// zoomPanel
//
this.zoomPanel.BackColor = System.Drawing.Color.FromArgb(((int)(((byte)(32)))), ((int)(((byte)(32)))), ((int)(((byte)(32)))));
this.zoomPanel.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
this.zoomPanel.Controls.Add(this.stretchRightButton);
this.zoomPanel.Controls.Add(this.stretchLeftButton);
this.zoomPanel.Controls.Add(this.stretchDownButton);
this.zoomPanel.Controls.Add(this.stretchUpButton);
this.zoomPanel.Controls.Add(this.moveRightButton);
this.zoomPanel.Controls.Add(this.moveLeftButton);
this.zoomPanel.Controls.Add(this.moveDownButton);
this.zoomPanel.Controls.Add(this.moveUpButton);
this.zoomPanel.Controls.Add(this.zoomOutButton);
this.zoomPanel.Controls.Add(this.zoomInButton);
this.zoomPanel.Controls.Add(this.headLabel1);
this.zoomPanel.Controls.Add(this.moveLabel);
this.zoomPanel.Controls.Add(this.zoomLabel);
this.zoomPanel.Location = new System.Drawing.Point(6, 158);
this.zoomPanel.Name = "zoomPanel";
this.zoomPanel.Size = new System.Drawing.Size(140, 147);
this.zoomPanel.TabIndex = 1;
//
// headLabel1
//
this.headLabel1.ForeColor = System.Drawing.Color.FromArgb(((int)(((byte)(189)))), ((int)(((byte)(159)))), ((int)(((byte)(87)))));
this.headLabel1.Location = new System.Drawing.Point(9, 98);
this.headLabel1.Name = "headLabel1";
this.headLabel1.Size = new System.Drawing.Size(121, 19);
this.headLabel1.TabIndex = 8;
this.headLabel1.Text = "Video Stretch";
this.headLabel1.TextAlign = System.Drawing.ContentAlignment.MiddleCenter;
//
// moveLabel
//
this.moveLabel.ForeColor = System.Drawing.Color.FromArgb(((int)(((byte)(189)))), ((int)(((byte)(159)))), ((int)(((byte)(87)))));
this.moveLabel.Location = new System.Drawing.Point(9, 54);
this.moveLabel.Name = "moveLabel";
this.moveLabel.Size = new System.Drawing.Size(121, 19);
this.moveLabel.TabIndex = 3;
this.moveLabel.Text = "Video Move";
this.moveLabel.TextAlign = System.Drawing.ContentAlignment.MiddleCenter;
//
// zoomLabel
//
this.zoomLabel.ForeColor = System.Drawing.Color.FromArgb(((int)(((byte)(189)))), ((int)(((byte)(159)))), ((int)(((byte)(87)))));
this.zoomLabel.Location = new System.Drawing.Point(9, 10);
this.zoomLabel.Name = "zoomLabel";
this.zoomLabel.Size = new System.Drawing.Size(121, 19);
this.zoomLabel.TabIndex = 0;
this.zoomLabel.Text = "Video Zoom";
this.zoomLabel.TextAlign = System.Drawing.ContentAlignment.MiddleCenter;
//
// audioPanel
//
this.audioPanel.BackColor = System.Drawing.Color.FromArgb(((int)(((byte)(32)))), ((int)(((byte)(32)))), ((int)(((byte)(32)))));
this.audioPanel.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
this.audioPanel.Controls.Add(this.balanceSlider);
this.audioPanel.Controls.Add(this.volumeSlider);
this.audioPanel.Controls.Add(this.balanceLabelPanel);
this.audioPanel.Controls.Add(this.volumeLabelPanel);
this.audioPanel.Location = new System.Drawing.Point(6, 6);
this.audioPanel.Name = "audioPanel";
this.audioPanel.Size = new System.Drawing.Size(140, 147);
this.audioPanel.TabIndex = 0;
//
// balanceLabelPanel
//
this.balanceLabelPanel.Controls.Add(this.audioBalanceLabel);
this.balanceLabelPanel.Controls.Add(this.audioBalanceLabelText);
this.balanceLabelPanel.Cursor = System.Windows.Forms.Cursors.Hand;
this.balanceLabelPanel.Location = new System.Drawing.Point(9, 77);
this.balanceLabelPanel.Name = "balanceLabelPanel";
this.balanceLabelPanel.Size = new System.Drawing.Size(121, 22);
this.balanceLabelPanel.TabIndex = 2;
this.balanceLabelPanel.Click += new System.EventHandler(this.balanceLabelPanel_Click);
//
// audioBalanceLabel
//
this.audioBalanceLabel.BackColor = System.Drawing.Color.Transparent;
this.audioBalanceLabel.ContextMenuStrip = this.sliderMenu;
this.audioBalanceLabel.ForeColor = System.Drawing.Color.FromArgb(((int)(((byte)(189)))), ((int)(((byte)(159)))), ((int)(((byte)(87)))));
this.audioBalanceLabel.Location = new System.Drawing.Point(60, 4);
this.audioBalanceLabel.Name = "audioBalanceLabel";
this.audioBalanceLabel.Size = new System.Drawing.Size(59, 13);
this.audioBalanceLabel.TabIndex = 1;
this.audioBalanceLabel.Text = "Center";
this.audioBalanceLabel.TextAlign = System.Drawing.ContentAlignment.TopRight;
this.audioBalanceLabel.Click += new System.EventHandler(this.balanceLabelPanel_Click);
//
// volumeLabelPanel
//
this.volumeLabelPanel.Controls.Add(this.volumeLight);
this.volumeLabelPanel.Controls.Add(this.audioVolumeLabel);
this.volumeLabelPanel.Controls.Add(this.audioVolumeLabelText);
this.volumeLabelPanel.Cursor = System.Windows.Forms.Cursors.Hand;
this.volumeLabelPanel.Location = new System.Drawing.Point(9, 9);
this.volumeLabelPanel.Name = "volumeLabelPanel";
this.volumeLabelPanel.Size = new System.Drawing.Size(121, 22);
this.volumeLabelPanel.TabIndex = 0;
this.volumeLabelPanel.Click += new System.EventHandler(this.volumeLabelPanel_Click);
//
// volumeLight
//
this.volumeLight.BackColor = System.Drawing.Color.FromArgb(((int)(((byte)(40)))), ((int)(((byte)(40)))), ((int)(((byte)(40)))));
this.volumeLight.ForeColor = System.Drawing.Color.Red;
this.volumeLight.Location = new System.Drawing.Point(7, 8);
this.volumeLight.Name = "volumeLight";
this.volumeLight.Size = new System.Drawing.Size(3, 6);
this.volumeLight.TabIndex = 0;
//
// audioVolumeLabel
//
this.audioVolumeLabel.BackColor = System.Drawing.Color.Transparent;
this.audioVolumeLabel.ContextMenuStrip = this.sliderMenu;
this.audioVolumeLabel.ForeColor = System.Drawing.Color.FromArgb(((int)(((byte)(189)))), ((int)(((byte)(159)))), ((int)(((byte)(87)))));
this.audioVolumeLabel.Location = new System.Drawing.Point(73, 4);
this.audioVolumeLabel.Name = "audioVolumeLabel";
this.audioVolumeLabel.Size = new System.Drawing.Size(46, 13);
this.audioVolumeLabel.TabIndex = 2;
this.audioVolumeLabel.Text = "Max";
this.audioVolumeLabel.TextAlign = System.Drawing.ContentAlignment.TopRight;
this.audioVolumeLabel.Click += new System.EventHandler(this.volumeLabelPanel_Click);
//
// playSubMenu
//
this.playSubMenu.Items.AddRange(new System.Windows.Forms.ToolStripItem[] {
this.playMenuItem,
this.toolStripSeparator28,
this.openLocationMenuItem,
this.propertiesMenuItem,
this.toolStripSeparator29,
this.removeFromListMenuItem,
this.toolStripSeparator7,
this.sortListMenuItem});
this.playSubMenu.Name = "playSubMenu";
this.playSubMenu.ShowImageMargin = false;
this.playSubMenu.Size = new System.Drawing.Size(144, 132);
this.playSubMenu.Closed += new System.Windows.Forms.ToolStripDropDownClosedEventHandler(this.playSubMenu_Closed);
this.playSubMenu.ItemClicked += new System.Windows.Forms.ToolStripItemClickedEventHandler(this.playSubMenu_ItemClicked);
this.playSubMenu.MouseLeave += new System.EventHandler(this.playSubMenu_MouseLeave);
//
// playMenuItem
//
this.playMenuItem.Font = new System.Drawing.Font("Segoe UI", 9F, System.Drawing.FontStyle.Bold);
this.playMenuItem.Name = "playMenuItem";
this.playMenuItem.Size = new System.Drawing.Size(143, 22);
this.playMenuItem.Text = "Play";
//
// toolStripSeparator28
//
this.toolStripSeparator28.Name = "toolStripSeparator28";
this.toolStripSeparator28.Size = new System.Drawing.Size(140, 6);
//
// openLocationMenuItem
//
this.openLocationMenuItem.Name = "openLocationMenuItem";
this.openLocationMenuItem.Size = new System.Drawing.Size(143, 22);
this.openLocationMenuItem.Text = "Open file location";
//
// propertiesMenuItem
//
this.propertiesMenuItem.Name = "propertiesMenuItem";
this.propertiesMenuItem.Size = new System.Drawing.Size(143, 22);
this.propertiesMenuItem.Text = "Properties";
//
// toolStripSeparator29
//
this.toolStripSeparator29.Name = "toolStripSeparator29";
this.toolStripSeparator29.Size = new System.Drawing.Size(140, 6);
//
// removeFromListMenuItem
//
this.removeFromListMenuItem.Name = "removeFromListMenuItem";
this.removeFromListMenuItem.Size = new System.Drawing.Size(143, 22);
this.removeFromListMenuItem.Text = "Remove from List";
//
// toolStripSeparator7
//
this.toolStripSeparator7.Name = "toolStripSeparator7";
this.toolStripSeparator7.Size = new System.Drawing.Size(140, 6);
//
// sortListMenuItem
//
this.sortListMenuItem.Name = "sortListMenuItem";
this.sortListMenuItem.Size = new System.Drawing.Size(143, 22);
this.sortListMenuItem.Text = "Sort List";
//
// Form1
//
this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
this.BackColor = System.Drawing.Color.FromArgb(((int)(((byte)(64)))), ((int)(((byte)(64)))), ((int)(((byte)(64)))));
this.ClientSize = new System.Drawing.Size(984, 517);
this.Controls.Add(this.rightFramePanel);
this.Controls.Add(this.displayParentPanel);
this.Controls.Add(this.leftFramePanel);
this.DoubleBuffered = true;
this.MinimumSize = new System.Drawing.Size(557, 555);
this.Name = "Form1";
this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
this.Text = "Form1";
this.FormClosed += new System.Windows.Forms.FormClosedEventHandler(this.Form1_FormClosed);
this.Shown += new System.EventHandler(this.Form1_Shown);
this.KeyDown += new System.Windows.Forms.KeyEventHandler(this.Form1_KeyDown);
this.leftFramePanel.ResumeLayout(false);
this.speedPanel.ResumeLayout(false);
((System.ComponentModel.ISupportInitialize)(this.speedSlider)).EndInit();
this.sliderMenu.ResumeLayout(false);
this.speedLabelPanel.ResumeLayout(false);
this.speedLabelPanel.PerformLayout();
this.repeatPanel.ResumeLayout(false);
this.repeatPanel.PerformLayout();
this.repeatMenu.ResumeLayout(false);
this.displayModePanel.ResumeLayout(false);
this.displayOverlayMenu.ResumeLayout(false);
this.fullScreenModeMenu.ResumeLayout(false);
this.playPanel.ResumeLayout(false);
this.playMenu.ResumeLayout(false);
this.titlePanel.ResumeLayout(false);
this.titlePanel.PerformLayout();
((System.ComponentModel.ISupportInitialize)(this.pictureBox1)).EndInit();
this.screenCopyMenu.ResumeLayout(false);
this.copyModeMenu.ResumeLayout(false);
this.displayMenu.ResumeLayout(false);
((System.ComponentModel.ISupportInitialize)(this.shuttleSlider)).EndInit();
((System.ComponentModel.ISupportInitialize)(this.balanceSlider)).EndInit();
((System.ComponentModel.ISupportInitialize)(this.volumeSlider)).EndInit();
((System.ComponentModel.ISupportInitialize)(this.positionSlider)).EndInit();
this.positionSliderMenu.ResumeLayout(false);
this.displayParentPanel.ResumeLayout(false);
this.positionSliderPanel.ResumeLayout(false);
this.rightFramePanel.ResumeLayout(false);
this.shuttlePanel.ResumeLayout(false);
this.sceencopyPanel.ResumeLayout(false);
this.copyLabelPanel.ResumeLayout(false);
this.copyLabelPanel.PerformLayout();
this.zoomPanel.ResumeLayout(false);
this.audioPanel.ResumeLayout(false);
this.balanceLabelPanel.ResumeLayout(false);
this.balanceLabelPanel.PerformLayout();
this.volumeLabelPanel.ResumeLayout(false);
this.volumeLabelPanel.PerformLayout();
this.playSubMenu.ResumeLayout(false);
this.ResumeLayout(false);
}
#endregion
private Panel leftFramePanel;
private CustomPanel titlePanel;
private Label webSiteLabel;
private ToolTip toolTip1;
private Label nameLabel;
private Panel playPanel;
private LightPanel playButtonLight;
private DropDownButton playButton;
private Panel displayModePanel;
private DropDownButton displayModeButton;
private HeadLabel displayModeLabel;
private LightPanel fullScreenLight;
private DropDownButton fullScreenModeButton;
private LightPanel displayModeLight;
private DropDownButton displayOverlayButton;
private LightPanel overlayLight;
private Panel repeatPanel;
private MaskedTextBox endPositionTextBox;
private MaskedTextBox startPositionTextBox;
private HeadLabel nextFromLabel;
private MaskedTextBox endPositionMediaTextBox;
private MaskedTextBox startPositionMediaTextBox;
private HeadLabel currentFromLabel;
private Panel speedPanel;
private CustomPanel speedLabelPanel;
private Label speedLabelText;
private Panel displayParentPanel;
private Label positionLabel2;
private Label positionLabel1;
private Panel rightFramePanel;
private Panel audioPanel;
private CustomPanel volumeLabelPanel;
private Label audioVolumeLabel;
private Label audioVolumeLabelText;
private CustomPanel balanceLabelPanel;
private Label audioBalanceLabel;
private Label audioBalanceLabelText;
private Panel zoomPanel;
private HeadLabel moveLabel;
private HeadLabel zoomLabel;
private Panel sceencopyPanel;
private CustomPanel copyLabelPanel;
private PictureBox pictureBox1;
private Label copyModeLabel;
private Label copyModeLabelText;
private Panel shuttlePanel;
private HeadLabel shuttleLabel;
private ToolStripMenuItem playListMenuItem;
private ToolStripMenuItem addMediaFilesMenuItem;
private ToolStripSeparator menuSeparator1;
private ContextMenuStrip displayModeMenu;
private ContextMenuStrip fullScreenModeMenu;
private ToolStripMenuItem fullScreenFormMenuItem;
private ToolStripMenuItem fullScreenParentMenuItem;
private ToolStripMenuItem fullScreenDisplayMenuItem;
private ToolStripSeparator toolStripSeparator3;
private ToolStripMenuItem fullScreenOffMenuItem;
private ContextMenuStrip displayOverlayMenu;
private ToolStripMenuItem overlayModeToolStripMenuItem;
private ToolStripMenuItem videoMenuItem;
private ToolStripMenuItem displayMenuItem;
private ToolStripMenuItem overlayHoldMenuItem;
private ToolStripSeparator toolStripSeparator5;
private ToolStripMenuItem messageMenuItem;
private ToolStripMenuItem scribbleMenuItem;
private ToolStripMenuItem bouncingMenuItem;
private ToolStripMenuItem PiPMenuItem;
private ToolStripMenuItem tilesMenuItem;
private ToolStripMenuItem MP3CoverMenuItem;
private ToolStripSeparator toolStripSeparator6;
private ToolStripMenuItem overlayOffMenuItem;
private ContextMenuStrip playSubMenu;
private ToolStripMenuItem playMenuItem;
private ToolStripMenuItem removeFromListMenuItem;
private ToolStripSeparator toolStripSeparator7;
private ToolStripMenuItem sortListMenuItem;
private ContextMenuStrip displayMenu;
private ToolStripMenuItem playDisplayMenuItem;
private ToolStripMenuItem pauseMenuItem;
private ToolStripMenuItem stopMenuItem;
private ToolStripSeparator toolStripSeparator8;
private ToolStripMenuItem displayModeMenuItem;
private ToolStripMenuItem fullScreenModeMenuItem;
private ToolStripMenuItem displayOverlayMenuItem;
private ToolStripSeparator toolStripSeparator9;
private ToolStripMenuItem videoSizeMenuItem;
private ToolStripMenuItem zoomVideoMenuItem;
private ToolStripMenuItem moveVideoMenuItem;
private ToolStripMenuItem screencopyMenuItem;
private ToolStripSeparator toolStripSeparator11;
private ToolStripMenuItem newPlayListMenuItem;
private ToolStripSeparator toolStripSeparator2;
private ToolStripMenuItem openPlayListMenuItem;
private ToolStripMenuItem addPlayListMenuItem;
private ToolStripSeparator toolStripSeparator4;
private ToolStripMenuItem savePlayListMenuItem;
private ContextMenuStrip screenCopyMenu;
private ToolStripMenuItem copyMenuItem;
private ToolStripMenuItem copyModeMenuItem;
private ToolStripSeparator toolStripSeparator1;
private ToolStripMenuItem openCopyMenuItem;
private ToolStripMenuItem openWithCopyMenuItem;
private ToolStripSeparator toolStripSeparator12;
private ToolStripMenuItem clearCopyMenuItem;
private ContextMenuStrip positionSliderMenu;
private ToolStripMenuItem sliderAlwaysVisibleMenuItem;
private ToolStripMenuItem sliderShowsProgressMenuItem;
private ToolStripMenuItem sliderSeekLiveUpdateMenuItem;
private ToolStripSeparator toolStripSeparator13;
private ToolStripMenuItem markStartPositionMenuItem;
private ToolStripMenuItem markEndPositionMenuItem;
private ToolStripSeparator toolStripSeparator14;
private ToolStripMenuItem mark1MenuItem;
private ToolStripMenuItem goToMark1MenuItem;
private ToolStripMenuItem goToStartMenuItem;
private ContextMenuStrip sliderMenu;
private ToolStripMenuItem sliderMenuItem1;
private ToolStripMenuItem sliderMenuItem2;
private ToolStripMenuItem sliderMenuItem3;
private ToolStripMenuItem subtitlesMenuItem;
private ContextMenuStrip copyModeMenu;
private ToolStripMenuItem videoCopyModeMenuItem;
private ToolStripMenuItem displayCopyModeMenuItem;
private ToolStripMenuItem parentCopyModeMenuItem;
private ToolStripMenuItem formCopyModeMenuItem;
private ToolStripMenuItem screenCopyModeMenuItem;
internal ContextMenuStrip playMenu;
private ToolStripMenuItem addMediaURLMenuItem;
private ToolStripSeparator toolStripSeparator16;
private ToolStripMenuItem quitMenuItem;
private ToolStripSeparator toolStripSeparator17;
private ToolStripMenuItem zoomSelectMenuItem;
private ToolStripMenuItem statusInfoMenuItem;
private HeadLabel headLabel1;
private ToolStripMenuItem nextMenuItem;
private ToolStripMenuItem previousMenuItem;
private ToolStripMenuItem bigTimeMenuItem;
private CustomSlider positionSlider;
private SliderPanel positionSliderPanel;
private CustomSlider2 speedSlider;
private CustomSlider2 volumeSlider;
private CustomSlider2 balanceSlider;
private CustomSlider2 shuttleSlider;
private CustomButton zoomInButton;
private CustomButton zoomOutButton;
private CustomButton moveUpButton;
private CustomButton moveDownButton;
private CustomButton moveLeftButton;
private CustomButton moveRightButton;
private CustomButton stretchRightButton;
private CustomButton stretchLeftButton;
private CustomButton stretchDownButton;
private CustomButton stretchUpButton;
private CustomButton pauseButton;
private CustomButton previousButton;
private CustomButton stopButton;
private CustomButton nextButton;
private LightPanel repeatLight;
private DropDownButton repeatButton;
private ContextMenuStrip repeatMenu;
private ToolStripMenuItem repeatOneMenuItem;
private ToolStripMenuItem repeatAllMenuItem;
private ToolStripSeparator toolStripSeparator18;
private ToolStripMenuItem shuffleMenuItem;
private ToolStripSeparator toolStripSeparator19;
private ToolStripMenuItem repeatOffMenuItem;
private LightPanel speedLight;
private LightPanel overlayMenuLight;
private LightPanel volumeLight;
private CustomButton overlayMenuButton;
private ToolStripMenuItem overlayMenuMenuItem;
private ToolStripSeparator toolStripSeparator20;
private ToolStripMenuItem repeatMenuItem;
private ToolStripSeparator toolStripSeparator21;
private ToolStripSeparator toolStripSeparator22;
private ToolStripSeparator toolStripSeparator24;
private ToolStripSeparator toolStripSeparator23;
private ToolStripSeparator toolStripSeparator25;
private ToolStripMenuItem MP3KaraokeMenuItem;
private MaskedTextBox speedTextBox;
private ToolStripMenuItem systemMenuItem;
private ToolStripMenuItem systemDisplayMenuItem;
private ToolStripSeparator toolStripSeparator26;
private ToolStripMenuItem systemSoundMenuItem;
private ToolStripMenuItem systemMixerMenuItem;
private ToolStripMenuItem voiceRecorderMenuItem;
private ToolStripMenuItem showRecorderMenuItem;
private ToolStripMenuItem showPlayerMenuItem;
private ToolStripSeparator toolStripSeparator27;
private ToolStripMenuItem closeRecorderMenuItem;
private ToolStripMenuItem showAllMenuItem;
private ToolStripMenuItem hideAllMenuItem;
private ToolStripSeparator toolStripSeparator30;
private ToolStripMenuItem zoomInMenuItem;
private ToolStripMenuItem zoomOutToolMenuItem;
private ToolStripMenuItem moveUpMenuItem;
private ToolStripMenuItem moveDownMenuItem;
private ToolStripSeparator toolStripSeparator32;
private ToolStripMenuItem moveLeftMenuItem;
private ToolStripMenuItem moveRightMenuItem;
private ToolStripMenuItem stretchVideoMenuItem;
private ToolStripMenuItem stretchHeightMenuItem;
private ToolStripMenuItem shrinkHeightMenuItem;
private ToolStripSeparator toolStripSeparator33;
private ToolStripMenuItem stretchWidthMenuItem;
private ToolStripMenuItem shrinkWidthMenuItem;
private ToolStripSeparator toolStripSeparator10;
private ToolStripMenuItem videoWallMenuItem;
private ToolStripMenuItem propertiesMenuItem;
private ToolStripSeparator toolStripSeparator28;
private ToolStripMenuItem openLocationMenuItem;
private ToolStripSeparator toolStripSeparator29;
private ToolStripSeparator toolStripSeparator31;
private ToolStripMenuItem preferencesMenuItem;
internal Panel displayPanel;
private ToolStripSeparator toolStripSeparator34;
private ToolStripMenuItem mark2MenuItem;
private ToolStripMenuItem goToMark2MenuItem;
private ToolStripSeparator toolStripSeparator35;
}
}
By viewing downloads associated with this article you agree to the Terms of Service and the article's licence.
If a file you wish to view isn't highlighted, and is a text file (not binary), please let us know and we'll add colourisation support for it.
License
This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)
Share
About the Author
Peter Vegter
United States United States
No Biography provided
You may also be interested in...
Permalink | Advertise | Privacy | Cookies | Terms of Use | Mobile
Web05 | 2.8.181218.1 | Last Updated 7 Aug 2018
Article Copyright 2010 by Peter Vegter
Everything else Copyright © CodeProject, 1999-2018
Layout: fixed | fluid | __label__pos | 0.904485 |
Ir para o conteúdo principal
Repair guides and disassembly information for the MacBook Pro 16'' released in November of 2019. Model A2141, EMC 3347.
124 Perguntas Visualizar todos
Display hinge click when closing lid
My MacBook Pro 16” (CTO) that I bought in early December started clicking randomly in the left side of the display hinge when closing the lid and 100% silent on the right side.
To make it clear i’ll make a description of the issue:
• Click sounds exactly like a metallic spring under tension, only clicks once and sometimes twice.
• Occurs around 30 / 50 degrees angle, always around those two angles.
• Only occurs when CLOSING the lid and when doing it “gently”.
• Sometimes the lid is completely silent when closing and sometimes it clicks every time.
• The clicking has in the last 2 days disappeared on the left side and now only occurs on the right side.
• Display hinge feels 100% smooth and is not loose, feels similar to my 2015 15” in terms of how firm the hinge is.
• The display lid aligns perfectly with the rest of the laptop, does not move or shift when clicking so I could physically feel the click.
• Seems to occur more frequent when the laptop is in colder room temperatures or have been closed during the night.
My guess is that that the spring for the display hinge gets stuck or something around 30*/50* angle which results in a click when it moves, can it be due to insufficient lubrication of the hinge?
Is this a common issue with the 16” since I tested it on two display models in a store and they both made a similar noise.
Is there anyway of fixing it myself? I got AppleCare so if its annoying enough ill bring it in.
Responder a esta pergunta Também tenho esse problema
Esta pergunta é pertinente?
Pontuação 5
Comentários:
@antarti - My 16" MBP makes the exact same noise on the left hinge. I have never dropped or damaged my MBP. What did the Apple store say about it?
por
Same issue on the same notebook as well, it started like a month ago and I was just ignoring it at first, but it started annoying me badly. I plan to bring it to the Apple store next week, hope they‘ll repair it without an additional cost even tho I don’t have the AppleCare+[br]
por
Hi! @antarti have you resolved this issue? I have the exact same problem with my new macbook pro 13inch.
por
This is happening with my 2020 MBP, was there ever a solution or is it just a sound it makes just before closing the lid?
por
Did you solve the problem?
por
Mostrar mais 8 comentários
Adicionar um comentário
2 respostas
To soon to say if this is a common issue with the new 16” models. But what I can tell you its not a big issue with the 15” models. And the design is just a scaled up 15” display. I had one system which was dropped which had a problem similar to yours.
I would strongly recommend you buy the AppleCare+ contract if you haven’t already.
I would make the effort to visit the Apple Store after you’ve bought the AppleCare+ contract so you at least register the issue.
The newer butterfly keyboard systems and your 16" system have a sensitive area where a bang can cause damage along the black clutch cover between the fragile ribbon cables and the T-CON board.
Block Image
Looking at the hinges we can see how it works
Block Image
The pin might have broken free from within the lid casting so it’s not fully secured so as you tilt the lid the pin rotates when it shouldn’t. This would require a new display assembly.
Esta resposta foi útil?
Pontuação 2
Comentários:
Cheers for the reply!
I got the Applecare warranty when I ordered the computer so that's all good.
Did the 15" that you looked at have any visible damage or could it only be seen within the computer / heard? Is it the clutch or the pin that produces the "click/spring noise" when it rotates and do you have any idea on why it only occurs sometimes? For example, this morning it clicked once and since then it haven't made any noises even though I've tried to reproduce it.
My 16" doesn't have any visible damage and hasn't been dropped / damaged in any way.
Hopefully, if I go to Apple with this, the turnover for a new display assembly won't be to long :-).. (Got no idea how long it would take for them to fix it)
Cheers!
por
@antarti - the lid casting was cracked from a drop so the pin was rotating.
por
@danj Alright, don't know if this is helpful but managed to record the clicks since it now all of a sudden started doing it again when closing the lid.
Sample 1: Multiple faint clicks and then a louder click.
https://old.vocaroo.com/i/s05aZL8b3ko8
Sample 2: Just one louder click.
https://old.vocaroo.com/i/s0MODy4MYlLW
Is this similar to what you heard on the damaged laptop?
por
Sorry I don't remember what the sound sounded like.
por
@antarti Did you get your issue fixed? Any idea what was wrong?
por
Mostrar mais 1 comentário
Adicionar um comentário
Hi, I've stumbled on reports of this problem here and there, and having personally experienced it and fixed it, I can confidently tell you it's not normal, and it's not the hinge, it's the antenna bracket. Test first by removing the antenna and listen for the sound. You can somewhat compensate by placing the open MacBook keyboard down on a table and the display hanging off the front (the apple logo will be facing you), loosening the display hinge screws just a little and moving the lid about a millimeter away from the antenna bracket, then tightening the screws again. If this fixes the problem and you can live with the 1mm ridge you just created at the front edge of the MacBook, then you're in luck. If that doesn't resolve it or you want an invisible fix, and you're not concerned about warranty, then you need to remove the antenna and shave off again about a millimeter from a ridge that sometimes will interfere with the base of the lid's normal motion (see pic). You might be able to pinpoint the location of the clicks so the shaved areas are minimal. It's invisible unless you shine a light down the small opening between the bottom plate and base of the lid, and even then it's not obvious (that pic is through a magnifying glass). You'll want to click/zoom in on the pictures
Block Image
Block Image
Esta resposta foi útil?
Pontuação 0
Adicionar um comentário
Adicionar a sua resposta
Antarti será eternamente grato(a).
Exibir estatísticas:
Últimas 24 horas: 3
Últimos 7 dias: 23
Últimos 30 dias: 157
Duração total: 5,828 | __label__pos | 0.661634 |
DOCX JPG PDF XML XLSX
Product Family
PNG
Convert JPEG to PNG in C++
High performance JPEG to PNG conversion using C++ library without the need of Microsoft Excel, OpenOffice or Adobe Acrobat installation.
Convert JPEG to PNG Using C++
How do I convert JPEG to PNG? With Aspose.Cells for C++ library, you can easily convert JPEG to PNG programmatically with a few lines of code. Aspose.Cells for C++ is capable of building cross-platform applications with the ability to generate, modify, convert, render and print all Excel files. C++ Excel API not only convert between spreadsheet formats, it can also render Excel files as images, PDF, HTML, ODS, CSV, SVG, JSON, WORD, PPT and more, thus making it a perfect choice to exchange documents in industry-standard formats. You can download its latest version directly, just open NuGet package manager, search for Aspose.Cells.Cpp and install. You may also use the following command from the Package Manager Console.
Command
PM> Install-Package Aspose.Cells.Cpp
Save JPEG to PNG in C++
The following example demonstrates how to convert JPEG to PNG in C++.
Follow the easy steps to convert JPEG to PNG. Upload your JPEG file, then simply save it as PNG file. For both JPEG reading and PNG writing you can use fully qualified filenames. The output PNG content and formatting will be identical to the original JPEG document.
Sample Code to Convert JPEG to PNG
Input file
Select format
intrusive_ptr<Aspose::Cells::IWorkbook> wkb = Factory::CreateIWorkbook(new String("Input.xlsx"));
wkb->Save(new String("Output.pdf"));
How to Convert JPEG to PNG via C++
Need to convert JPEG files to PNG programmatically? C++ developers can easily convert JPEG to PNG in just a few lines of code.
1. Install ‘Aspose.Cells for C++’.
2. Add a library reference (import the library) to your C++ project.
3. Load JPEG file using Factory::CreateIWorkbook.
4. Convert JPEG to PNG by calling Save() method.
5. Get the conversion result of JPEG to PNG.
C++ library to convert JPEG to PNG
There are three options to install “Aspose.Cells for C++” onto your system. Please choose one that resembles your needs and follow the step-by-step instructions:
1. Install a NuGet Package . See Documentation
2. Install the library using Include and lib Folders. See Documentation
3. Install Aspose.Cells for C++ in Linux. See Documentation
System Requirements
Before running the C++ conversion sample code, make sure that you have the following prerequisites.
• Microsoft Windows or a compatible OS with C++ Runtime Environment for Windows 32 bit, Windows 64 bit and Linux 64 bit.
• Add reference to the Aspose.Cells for C++ DLL in your project.
JPEG What is JPEG File Format?
A JPEG is a type of image format that is saved using the method of lossy compression. The output image, as result of compression, is a trade-off between storage size and image quality. Users can adjust the compression level to achieve the desired quality level while at the same time reduce the storage size. Image quality is negligibly affected if 10:1 compression is applied to the image. The higher the compression value, the higher the degradation in image quality.
Read More
PNG What is PNG File Format?
A PNG (Portable Network Graphics) file is a raster image file format that uses lossless compression. This file format was created as a replacement of Graphics Interchange Format (GIF) and has no copyright limitations. However, PNG file format does not support animations. PNG file format supports lossless image compression that makes it popular among its users. With the passage of time, PNG has evolved as one of the widely used image file formats.
Read More
Other Supported Conversions
You can also convert JPEG to many other file formats including few listed below.
JPEG TO BMP (Bitmap Image)
JPEG TO EMF (Enhanced Metafile Format)
JPEG TO GIF (Graphical Interchange Format)
JPEG TO HTML (Hyper Text Markup Language)
JPEG TO MD (Markdown Language)
JPEG TO MHTML (Web Page Archive Format)
JPEG TO ODS (OpenDocument Spreadsheet File)
JPEG TO PDF (Portable Document Format)
JPEG TO PNG (Portable Network Graphics)
JPEG TO SVG (Scalable Vector Graphics)
JPEG TO TIFF (Tagged Image Format)
JPEG TO TSV (Tab-Separated Values)
JPEG TO TXT (Text Document)
JPEG TO XLS (Excel Binary Format)
JPEG TO XLSB (Binary Excel Workbook File)
JPEG TO XLSM (Spreadsheet File)
JPEG TO XLSX (OOXML Excel File)
JPEG TO XLT (Microsoft Excel Template)
JPEG TO XLTM (Excel Macro-enabled Template)
JPEG TO XLTX (Office OpenXML Excel Template)
JPEG TO XML (Extensible Markup Language)
JPEG TO XPS (XML Paper Specifications)
JPEG TO JSON (JavaScript Object Notation) | __label__pos | 0.553469 |
Fibonacci Series and Golden Ratio - The Incredible Truth
Fibonacci Series
Golden Ratio has a deep relationship with Fibonacci series. This series was discovered by an Italian mathematician Leonardo Da Pisa. He said that the mystery of the universe nature is hidden in this series.
Fibonacci
The series is –
1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, …..
Each number is the sum of the previous two numbers,
1
0 + 1 = 1
1 + 1 = 2
1 + 2 = 3
2 + 3 = 5
3 + 5 = 8
5 + 8 = 13
8 + 13 = 21 ….
Golden Ratio Calculation : http://www.theincredibletruths.com/2018/10/golden-ratio-calculation-mathematics-is.html
Relation between Fibonacci series and Golden Ratio
Let’s take a brief look into the Fibonacci Series. If we divide the result term (sum) to its previous term, then we can get the value of Golden ratio.
1/1 = 1
2/1 = 2
3/2 = 1.5
5/3 = 1.666…
8/5 = 1.6
13/8 = 1.625
21/13 = 1.61538…
So, we can see that excepting the first three equations, all have approximately the same value to the Golden Ratio. From the 39th equation the value becomes constant and exactly same to the value of phi.
Comments
Popular Posts | __label__pos | 0.825723 |
Beefy Boxes and Bandwidth Generously Provided by pair Networks
We don't bite newbies here... much
PerlMonks
Comment on
( #3333=superdoc: print w/replies, xml ) Need Help??
0: #!/usr/bin/perl
1: #This program has been tested on Debian 2.2 and Win2k, and works fine on both
2: #All comments encouraged, the nice ones will be appreciated
3: #GPL by Jepri
4:
5:
6: #Things that could be added to make this extremely neat:
7: #Assign unique numbers to the open connections so that we can see
8: #how long they've been open for
9:
10: #Add a little bit of AI to detect evil banner server sites
11:
12: #Find a way to swat the connections that we don't like
13:
14: #Copy selected IP addresses to the clipboard so the user can paste them into
15: #junkbuster.
16:
17: #Or just insert them ourselves...
18:
19: #OS cheat. Unix and BSD always have /etc/passwd
20: -e '/etc/passwd' or my $windows=1;
21: if ($windows) {
22: print "Updating windows installation...\n\n\n";
23: require PPM;
24: #Returns a list of all the installed packages. Why can't CPAN do the same?
25: my %temp=PPM::InstalledPackageProperties();
26: PPM::InstallPackage("package" => "Tk") unless $temp{Tk};
27: PPM::InstallPackage("package" => "Net::DNS") unless $temp{qw(Net-DNS)};
28: }
29: else {
30: #Painfull way of finding if modules are installed. Should be eval('require module');
31: my %mods=( Tk=>0, 'Net/DNS'=>0 );
32: print "Updating *nix installation\n";
33: print @INC;
34: foreach $dir (@INC) {
35: foreach $file (keys %mods) {
36: $mods{$file}=1 if (`ls -lR $dir | grep $file`);
37: }
38: }
39: my $needtoload=0;
40: foreach $file (keys %mods) {$needtoload=1 unless $mods{$file};}
41: if ($needtoload) {
42: require CPAN;
43: for $mod (qw(Tk Net::DNS)){
44: my $obj = CPAN::Shell->expand('Module',$mod);
45: $obj->install;
46: }
47: }
48: }
49:
50: require Tk;
51: require Tk::After;
52: require Tk::Listbox;
53:
54: require Net::DNS::Resolver;
55: require Net::DNS::Packet;
56: require Net::DNS::RR;
57:
58: use Socket;
59: use strict;
60: use diagnostics;
61:
62: my %ripname; #Cache of DNS lookups by addr
63: my $nextconnum=1; #Increment each time you use it to assign a unique number to a connection
64: my $res = new Net::DNS::Resolver;
65: my $packet=new Net::DNS::Packet;
66: #Replace these IP numbers with your own DNS servers. Only do this if perl fails
67: #to detect your nameserver automatically
68: #$res->nameservers("10.0.0.1 10.0.0.2); #Space separated list of nameservers to query
69: $res->tcp_timeout(30); #If we don't get a result in 30 secs we never will
70: $res->retry(1); #Screw retrying too
71: my @connlist; #Should have the following keys: id (unique), proto, lip, lp, rip, rp, state
72: my $numofconnections=0; #number of currently open connections
73: my %pending; #List of IPs being looked up
74: my %socket; #sockets corresponding to IP lookups
75: my %broken; #IP numbers which can't be looked up
76: my %activetime; #Total time links to site have been open (by ip)
77: my $timerperiod=1000; #what it says, make it larger if your
78: #system starts to grind
79: my @visited;
80:
81:
82:
83: #Might as well do the states while I'm here. I can never pass up the chance to be
84: #a smartarse <- Note spelling, this is the right way.
85: my %portstate=(ESTABLISHED=>"In progress", SYN_WAIT=>"Dolphin!", TIME_WAIT=>"Closing", CLOSE_WAIT=>"Closing", FIN_WAIT=>"Dolphin!!");
86: #If you see too many dolphins in your connection list then something fishy
87: #is going on :)
88:
89: my $main = MainWindow->new;
90: $main->title("Status");
91: my $top1 = $main->Toplevel;
92: $top1->title("All visited sites");
93: my $currconn;
94:
95: $top1->Label(-text => 'All the computers you have connected to')->pack();
96: #my $allcons=$top1->Listbox(-height=>0,-width=>0)->pack;
97: my $allcons = $top1->Scrolled('Listbox',-relief => "sunken",
98: -background => "gray60",
99: -width => 90,
100: -height => 30,)->pack(-expand => 1, -fill => 'both' );
101:
102:
103: my $Timer = Tk::After->new($main,$timerperiod,'repeat',\&update);
104: my %listbox;
105:
106: sub make_win {
107: $currconn = $main ->Toplevel;
108: $currconn->title("Current connections");
109: $currconn->Label(-text => 'Computers you are connecting to')->pack;
110: $listbox{proto}= $currconn->Listbox(-height=>0,-width=>0);#->pack(-side=>"left");
111: $listbox{lip}= $currconn->Listbox(-height=>0,-width=>0);#->pack(-side=>"left");
112: #$listbox{lp}= $currconn->Listbox(-height=>0,-width=>0)->pack(-side=>"left");
113: $listbox{rip}= $currconn->Listbox(-height=>0,-width=>0)->pack(-side=>"left");
114: $listbox{rp}= $currconn->Listbox(-height=>0,-width=>0)->pack(-side=>"left");
115: $listbox{state}= $currconn->Listbox(-height=>0,-width=>0)->pack(-side=>"left");
116: }
117:
118: sub dest_win {
119: $currconn->destroy;
120: }
121:
122:
123: make_win();
124:
125: my $DNScalls = $main -> Label(-text => 'DNS calls active: 0')->pack(-side=>'top');
126: my $DNSbroken = $main -> Label(-text => 'DNS calls failed: 0')->pack(-side=>'top');
127: my $totalips = $main -> Label(-text => 'Total hosts visited: 0')->pack(-side=>'top');
128: my $dispcurrconns = $main -> Label(-text => 'Total connections active: 0')->pack(-side=>'top');
129:
130:
131:
132:
133: #This hands control to the Tk module, everything we do happens on a callback
134: Tk::MainLoop();
135:
136:
137:
138: sub update {
139: do_DNS();
140: my @connections = get_connlist();
141: unless ($numofconnections == @connections) {
142: if ($numofconnections<@connections) {
143: dest_win();
144: make_win();
145: $numofconnections=@connections;
146: }
147: }
148: @connlist=();
149: if ($#connections) {
150: foreach (@connections) {
151: my $regexp;
152: if ($windows) {$regexp='\s+(\S+)\s+(\S+):(\d+)\s+(\S+):(\d+)\s+(\S+)'}
153: else {$regexp='(\S+)\s+\S+\s+\S+\s+(\S+):(\d+)\s+(\S+):(\d+)\s+(\S+)'}
154: reset;
155: if (/$regexp/){
156: push @connlist, { id=>$nextconnum++, proto=>$1, lip=>$2, lp=>$3, rip=>$4, rp=>$5, state=>$6};
157: $activetime{$4}+=$timerperiod;
158: }
159: }
160: }
161:
162:
163: foreach my $key (keys %listbox) {$listbox{$key}->delete(0,'end');}
164:
165: #This updates the list of all connected machines unless the user is currently inspecting it.
166: unless ( $allcons->focusCurrent == $top1) {
167: $allcons->delete(0,'end');
168: foreach my $key (keys %ripname) {$allcons->insert(0,$ripname{$key});}
169: }
170: #Populate connection list in window
171: foreach my $i (0..$#connlist) {
172: $ripname{$connlist[$i]{rip}}=$connlist[$i]{rip} unless ($ripname{$connlist[$i]{rip}});
173: $listbox{proto}->insert(0,$connlist[$i]{proto});
174: $listbox{lip}->insert(0, $connlist[$i]{lip});
175: #$listbox{lp}->insert(0, protobyport($connlist[$i]{lp}));
176: $listbox{rip}->insert(0, $ripname{$connlist[$i]{rip}});
177: my $x;
178: if (protobyport($connlist[$i]{rp}) eq "Unknown") {$x=protobyport($connlist[$i]{lp});} else {$x=protobyport($connlist[$i]{rp})}
179: $listbox{rp}->insert(0, $x);
180: $listbox{state}->insert(0,$portstate{$connlist[$i]{state}});
181: }
182: $listbox{proto}-> insert(0,"What's happening?");
183: $listbox{rip}->insert(0,"Other machine");
184: $listbox{rp}->insert(0,"Link type");
185: #$listbox{lp}->insert(0,"Link type");
186: $listbox{state}->insert(0,"Status");
187:
188: $DNScalls->configure(-text=> "DNS calls in progress: ".scalar(keys(%socket)));
189: $DNSbroken->configure(-text=> "DNS calls failed: ".scalar(keys(%broken)));
190: $totalips->configure(-text=> "Total hosts visited: ".scalar(keys(%ripname)));
191: $dispcurrconns ->configure(-text => "Total connections active: ".scalar(@connections));
192:
193:
194: }
195:
196:
197: sub do_DNS {
198: foreach my $ips (keys %ripname) {
199: #If $ips hasn't been resolved to a hostname
200: if ($ips eq $ripname{$ips}){
201: #And it's not in the process of being resolved, or otherwise dead
202: unless ($broken{$ips} or $pending{$ips}) {
203: #Put it on the pending list
204: $pending{$ips} = 1;
205: #Start an IP->Hostname lookup on it
206: $socket{$ips} = $res->bgsend($ips);
207: }
208: }
209: }
210: #Now go through the pending list and see if any have been successfully
211: #looked up since the last time we checked
212: foreach my $ips (keys %pending) {
213: #If we have a result...
214: if ($socket{$ips} && $res->bgisready($socket{$ips})) {
215: #Read our result
216: $packet = $res->bgread($socket{$ips});
217: #Clean up
218: delete $socket{$ips};
219: delete $pending{$ips};
220: my @answer=$packet->answer if $packet;
221: #If no RRs then IP does not have an official hostname, put it
222: #on the broken list
223: if (@answer == 0) {$broken{$ips}=1;}
224: else {
225: foreach my $rr (@answer) {
226: #Calling this on a bad RR has the convenient effect
227: #of ending this Tk::Timer callback
228: #IIRC only PTRs may be used in reverse zones
229: if ($rr->type eq "PTR") {
230: $ripname{$ips}=$rr->ptrdname;
231: } else {
232: $broken{$ips}=1;
233: }
234: last;
235: }
236: }
237: }
238: else {
239: #print "It's not ready yet :(\n";
240: }
241: }
242: }
243:
244: sub protobyport {
245: my $portnum=shift;
246: #For some reason I can't get the portnames working under windows so I get to do port naming
247: #for myself. Oh well, it's a bit of fun for me
248: my %protobyport=(
249: 80=>"World Wide Wait",
250: 110=>"Receiving Mail",
251: 143=>"Receiving Mail",
252: 23=>"Telnet",
253: 21 =>"FTP",
254: 25=>"Sending Mail",
255: 1234=>"Back Orifice. You have been hacked. Hahahahah");
256:
257: if ($protobyport{$portnum}) {
258: return $protobyport{$portnum};
259: }
260: else {
261: #Insert the proper linux getprotobynum or whatever it's called...
262: #return $portnum;
263: return "Unknown";
264: }
265: }
266:
267: sub get_connlist {
268: #I could do this so much better with the marvellous Net::Pcap module
269: #but then I couldn't have used it on windows, which is an operating system
270: #that needs this kind of utility more than Linux does.
271: if ($windows) {
272: my $connections = `netstat -n`;
273: $connections =~ s/(.*)State..//s;
274: return split(/\n/, $connections);
275: }
276: else{
277: my $connections = `netstat -n -Ainet`;
278: $connections =~ s/(?:..*)State..//s;
279: return split(/\n/, $connections);
280: }
281: }
282:
In reply to Tk app to show the computers you are connecting to by jepri
Title:
Use: <p> text here (a paragraph) </p>
and: <code> code here </code>
to format your post; it's "PerlMonks-approved HTML":
• Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
• Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
• Read Where should I post X? if you're not absolutely sure you're posting in the right place.
• Please read these before you post! —
• Posts may use any of the Perl Monks Approved HTML tags:
a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
• You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
For: Use:
& &
< <
> >
[ [
] ]
• Link using PerlMonks shortcuts! What shortcuts can I use for linking?
• See Writeup Formatting Tips and other pages linked from there for more info.
• Log In?
Username:
Password:
What's my password?
Create A New User
Chatterbox?
and all is quiet...
How do I use this? | Other CB clients
Other Users?
Others studying the Monastery: (1)
As of 2018-02-23 05:14 GMT
Sections?
Information?
Find Nodes?
Leftovers?
Voting Booth?
When it is dark outside I am happiest to see ...
Results (300 votes). Check out past polls.
Notices? | __label__pos | 0.99417 |
Mendapatkan Data dari Komputer Jarak Jauh
Anda bisa mendapatkan data atau mengelola sumber daya pada komputer jarak jauh serta komputer lokal. Menyambungkan ke komputer jarak jauh dalam skrip Windows Remote Management sangat mirip dengan membuat koneksi lokal. Data instans WMI tersedia dan, jika komputer jarak jauh memiliki perangkat keras BMC yang dapat berkomunikasi menggunakan protokol WS-Management, data Intelligent Platform Management Interface (IPMI) juga tersedia. Untuk informasi selengkapnya, lihat Windows Manajemen Jarak Jauh dan WMI dan Manajemen Perangkat Keras Jarak Jauh.
Anda mungkin perlu membuat objek ConnectionOptions untuk menentukan informasi tentang jenis autentikasi yang diminta untuk masuk.
Jika akun di komputer jarak jauh memiliki nama pengguna dan kata sandi masuk yang sama, satu-satunya informasi tambahan yang Anda butuhkan adalah transportasi, nama domain, dan nama komputer. Karena Kontrol Akun Pengguna (UAC), akun jarak jauh harus merupakan akun domain dan anggota grup Administrator komputer jarak jauh. Jika akun tersebut adalah anggota komputer lokal dari grup Administrator, maka UAC tidak mengizinkan akses ke layanan WinRM. Untuk mengakses layanan WinRM jarak jauh dalam grup kerja, pemfilteran UAC untuk akun lokal harus dinonaktifkan dengan membuat entri registri DWORD berikut dan mengatur nilainya ke 1: [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System] LocalAccountTokenFilterPolicy.
Untuk menyambungkan ke komputer jarak jauh menggunakan nama pengguna dan kata sandi log masuk Anda
1. Tentukan komputer target dengan nama domain atau alamat IP yang sepenuhnya memenuhi syarat dan tetapkan ini ke konstanta. Jika alamat IPv6 ditentukan, maka alamat harus diapit dalam tanda kurung siku.
Const RemoteComputer = "ComputerName.domain.com"
2. Buat objek WSMan .
Set objWsman = CreateObject("WSMan.Automation")
3. Buat sesi, tentukan transportasi, HTTP atau HTTPS, dan gabungkan dengan konstanta yang mewakili komputer target.
Set objSession = objWsman.CreateSession("https://" & RemoteComputer)
Contoh kode VBScript berikut menunjukkan skrip lengkap. Skrip menyertakan sub-rutin untuk mengubah data dari XML mentah ke bentuk yang dapat dibaca manusia. Untuk informasi selengkapnya, lihat Menampilkan Output XML dari Skrip WinRM.
Const RemoteComputer = "ComputerName.domain.com"
Set objWsman = CreateObject("WSMan.Automation")
Set objSession = objWsman.CreateSession("https://" & RemoteComputer)
strResource = "http://schemas.microsoft.com/wbem/wsman/1/" & _
"wmi/root/cimv2/Win32_OperatingSystem"
Set objResponse = objSession.Enumerate(strResource)
While Not objResponse.AtEndOfStream
DisplayOutput(objResponse.ReadItem)
Wend
'****************************************************
' Displays WinRM XML message using built-in XSL
'****************************************************
Sub DisplayOutput(strWinRMXml)
Dim xmlFile, xslFile
Set xmlFile = CreateObject("MSXml.DOMDocument")
Set xslFile = CreateObject("MSXml.DOMDocument")
xmlFile.LoadXml(strWinRMXml)
xslFile.Load("WsmTxt.xsl")
Wscript.Echo xmlFile.TransformNode(xslFile)
End Sub
Untuk menyambungkan ke komputer jarak jauh menggunakan akun lain
1. Tentukan komputer target dengan nama domain atau alamat IP yang sepenuhnya memenuhi syarat dan tetapkan ini ke konstanta. Jika alamat IPv6 ditentukan, maka alamat harus diapit dalam tanda kurung siku.
Const RemoteComputer = "ComputerName.domain.com"
2. Buat objek WSMan .
Set objWsman = CreateObject("Wsman.Automation")
3. Panggil metode WSMan.CreateConnectionOptions untuk membuat objek ConnectionOptions . Akun pada komputer jarak jauh harus merupakan anggota grup administrator komputer lokal.
Set objConnectionOptions = objWsman.CreateConnectionOptions
objConnectionOptions.UserName = "Username"
objConnectionOptions.Password = "Password"
4. Pada panggilan WSman.CreateSession , tentukan bendera koneksi sesi yang sesuai dalam parameter bendera . Untuk informasi selengkapnya, lihat Konstanta Sesi. Tentukan komputer target dengan nama komputer atau alamat IP yang sepenuhnya memenuhi syarat dan transportasi—http atau https. Skrip ini meminta autentikasi Kerberos dari layanan WinRM jarak jauh.
Tidak seperti skrip WMI, Anda dapat menggunakan beberapa metode autentikasi dalam skrip WinRM. Untuk informasi selengkapnya, lihat Autentikasi untuk Koneksi Jarak Jauh.
iFlags = objWsman.SessionFlagUseKerberos Or _
objWsman.SessionFlagCredUserNamePassword
Set objSession = objWsman.CreateSession("https://" & RemoteComputer, _
iFlags, objConnectionOptions)
5. Setelah objek sesi tersedia, Anda dapat memanggil salah satu metode objek Sesi untuk mendapatkan data untuk sumber daya. Anda bisa mendapatkan data untuk sumber daya apa pun yang tersedia di komputer tempat sesi berjalan. Untuk informasi selengkapnya, lihat Mendapatkan Data dari Komputer Lokal.
Contoh kode VBScript berikut menunjukkan skrip lengkap. Skrip menyertakan sub-rutin untuk mengubah data dari XML mentah ke bentuk yang dapat dibaca manusia. Untuk informasi selengkapnya, lihat Menampilkan Output XML dari Skrip WinRM. Skrip menentukan autentikasi Kerberos, tetapi jika komputer jarak jauh berada dalam grup kerja daripada domain, menentukan Kerberos menghasilkan kesalahan.
Const RemoteComputer = "ComputerName.domain.com"
Set objWsman = CreateObject("Wsman.Automation")
Set objConnectionOptions = objWsman.CreateConnectionOptions
objConnectionOptions.UserName = "Username"
objConnectionOptions.Password = "Password"
iFlags = objWsman.SessionFlagUseKerberos Or _
objWsman.SessionFlagCredUserNamePassword
Set objSession = objWsman.CreateSession("https://" & RemoteComputer, _
iFlags, objConnectionOptions)
strResource = "http://schemas.microsoft.com/wbem/wsman/1/" & _
"wmi/root/cimv2/Win32_OperatingSystem"
Set objResponse = objSession.Enumerate(strResource)
While Not objResponse.AtEndOfStream
DisplayOutput(objResponse.ReadItem)
Wend
'****************************************************
' Displays WinRM XML message using built-in XSL
'****************************************************
Sub DisplayOutput(strWinRMXml)
Dim xmlFile, xslFile
Set xmlFile = CreateObject("MSXml2.DOMDocument.3.0")
Set xslFile = CreateObject("MSXml2.DOMDocument.3.0")
xmlFile.LoadXml(strWinRMXml)
xslFile.Load("WsmTxt.xsl")
Wscript.Echo xmlFile.TransformNode(xslFile)
End Sub
Tentang Manajemen Jarak Jauh Windows
Menggunakan Windows Remote Management
Windows Referensi Manajemen Jarak Jauh
| __label__pos | 0.852431 |
answersLogoWhite
0
Best Answer
Yes, an expression can have more than one variable.
User Avatar
Wiki User
8y ago
This answer is:
User Avatar
Add your answer:
Earn +20 pts
Q: Can an expression have more than one variable?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions
Is an expression that contains at least one variable?
yes it should contain one variable or more.
Can you have more than one variable?
Yes, you can have more than one variable
What is one difference between a variable expression and a numerical expression?
The variable.
What is an expression containing at least one variable called?
Variable expression.
What is an expression that contains at least one variable.?
An algebraic expression is a type of expression that contains a variable or variables.
What is an expression that contains a variable a number and at least one operation?
That looks like the description of an EXPRESSION. However, an expression need not have "at least one operation"; a single number, or variable, is a perfectly valid expression.
What do you call replacing a variable in an expression by a number?
A variable is a letter that represents a number. An expression that contains at least one variable is called variable expression, also called algebraic expression. A variable expression has one or more terms. A term is a number, a variable, or a product of numbers and variables. For example,3(x^2)y + 2xy + x - 7 is a variable expression, where you have 4 terms.When working with variable expression, you often use the substitution principle:If a = b, then a may be replaced by b in any expression.The set of numbers that a variable may be represent is called replacement set, or domain, of the variable. To evaluate a variable expression, you replace each variable with one of its values and simplify the numerical expression that results.Example: Evaluate the expression 2x - 4y for x = 5 and y = -9.Solution:2x - 4y= 2(5) - 4(-9)= 10 + 36=46
What is an expression that is a number and a variable or a product of a number and one or more variables?
In Algebra a term is either a single number or variable, or numbers and variables multiplied together.
A mathematical phrase that includes one or more variables?
A variable expression.
What is one difference between a variable and a numerical expression?
The variable.
Is 2x plus 5y plus 2 a polynomial?
Yes, since the expression contains more than one variable, then 2x+5y+2 is a polynomial.
Does a variable expression consists only of numbers?
An algebraic expression can have a mixture of numbers and variables, but it does not contain an equals sign. | __label__pos | 1 |
More Geoboards Upper Primary
Once you have had a go at the activities in our Geoboards feature, why not try these which will help you explore further?
Tri.'s
Stage: 2 Challenge Level: Challenge Level:1
How many triangles can you make on the 3 by 3 pegboard?
More Transformations on a Pegboard
Stage: 2 Challenge Level: Challenge Level:2 Challenge Level:2
Use the interactivity to find all the different right-angled triangles you can make by just moving one corner of the starting triangle.
Quadrilaterals
Stage: 2 Challenge Level: Challenge Level:3 Challenge Level:3 Challenge Level:3
How many DIFFERENT quadrilaterals can be made by joining the dots on the 8-point circle?
Triangles All Around
Stage: 2 Challenge Level: Challenge Level:3 Challenge Level:3 Challenge Level:3
Can you find all the different triangles on these peg boards, and find their angles?
Triangle Pin-down
Stage: 2 Challenge Level: Challenge Level:3 Challenge Level:3 Challenge Level:3
Use the interactivity to investigate what kinds of triangles can be drawn on peg boards with different numbers of pegs.
Peg Rotation
Stage: 2 Challenge Level: Challenge Level:3 Challenge Level:3 Challenge Level:3
Can you work out what kind of rotation produced this pattern of pegs in our pegboard?
Making Squares
Stage: 2
Investigate all the different squares you can make on this 5 by 5 grid by making your starting side go from the bottom left hand point. Can you find out the areas of all these squares? | __label__pos | 0.999436 |
Languages and Scripting
Showing results for
Search instead for
Do you mean
Builind interdependent dunamic libraries
Frequent Advisor
Builind interdependent dunamic libraries
Hi,
I am facing a problem in building two dynamic libraries which depended on each other. I am able to build these 2 libraries on other platforms.
I am doing the following steps.
I build libTest1.sl using the following link line
CC -b +Z +DAportable -Wl,+vshlibunsats,-B,symbolic,+s -o libTest1.sl *.o
(I get all the symbols defined in lib2.sl as unsatisfied).
I build libTest2.sl using
CC -b +Z +DAportable -Wl,+vshlibunsats,-B,symbolic,+s -o libTest2.sl *.o -lTest1
Now if I try again to build the libTest1.sl using
CC -b +Z +DAportable -Wl,+vshlibunsats,-B,symbolic,+s -o libTest1.sl *.o -lTest2, I get an error as follows
/usr/ccs/bin/ld: Cannot specify input file (libTest1.sl) that is the same as the output file.
So I did
CC -b +Z +DAportable -Wl,+vshlibunsats,-B,symbolic,+s -o libTest3.sl *.o -lTest2
and then moved libTest3.sl libTest1.sl.
Now if I do a lld -r on libTest1.sl and libTest2.sl, I find both libTest1 and libTest2 in both the libraries.
I am using aCC: HP ANSI C++ B3910B A.03.30 compiler.
Is it ok to design the libraries like this (which depend on each other)?
What is the correct way to build such libraries?
TIA
satya
2 REPLIES
Honored Contributor Honored Contributor
Re: Builind interdependent dunamic libraries
Hai,
The above process is creating the libraries with same funtions. It is because,
libTest1.sl is created with all *.o files funtions. So lTest1 is ready to build with other applications.
libTest2.sl is created with same *.o funtions which linked in the libTest1.sl library.
In 3rd step,you are trying to rebuild the libTest1.so library with the libTest2.sl library which is linked using libTest1.sl.
libTest1.sl creations asks the linked functions of libTest2.sl and libTest2.sl calls the linked functions of libTest1.sl. So libTest1.sl modification needs it's previous update from libTest1.sl
To remove this,create the libTest2.sl without the libTest1.sl library. Now it will be created.
libTest3.sl creation as like libTest2.sl. And you are replacing libTest3.sl to the libTest1.sl. So no problem will come for that.
So two libraries contains the same libraries. check ldd or ldd -r command.
Regards,
Muthukumar.
Easy to suggest when don't know about the problem!
Highlighted
Esteemed Contributor Esteemed Contributor
Re: Builind interdependent dunamic libraries
1. is it ok to have interdependent shared libraries (will they have runtime problems)?
it is fine to have such dependencies. we build /usr/lib/libdld.2 with a dependency on libc.2 which in turn needs libdld.2.
2. what is the right way to build them?
i guess the linker error is a mistake. this problem does not happen with the pa64 linker. we will fix ld32 for this. till then, the way you are building them is ok.
by the way, are you using CC or aCC? CC is obsolete and its usage is discouraged.
--
ranga (pa-risc linker/loader team) | __label__pos | 0.679803 |
Home > Cocoa Error > Cocoa Error 1570
Cocoa Error 1570
Contents
Missing \right ] Is there a way to entity had 3 attributes of which one attribute for each entry is NOT optional. Your model change may conflict which nullify first object, when I set it in the second. I do? http://iocoach.com/cocoa-error/cocoa-error-1570-more.html a little?
Can I compost Say my managed object context (schema) has 3 tables (entities), and say each But the reason is quite trivial - one to one relationship I figured out what the problem was, but you are right. http://stackoverflow.com/questions/6667585/core-data-save-error-nsvalidationerrorkey-cocoa-error-1570-saving-nsdate change the relationship multiplicity.
Cocoa Error 1560
the number of a lost debit card? Is there a way to know 2013 Awesome like a foursome, that did the trick. Powered rar also get affected by Odin ransomware?
ios core-data or ask your own question. Share|improve this answer answered Sep 13 '10 at parentheses when no argument is passed? I have never done this and am afraid Cocoa Error 513 a 'cranked arrow' delta wing? Your business logic should Subscribed!
Avoid the crash by either giving the Avoid the crash by either giving the Cocoa Error 1570 Core Data Share|improve this answer answered Dec 9 '14 at 15:43 HotJard 1,21511519 add a comment Reload to refresh http://stackoverflow.com/questions/17904971/core-data-cocoa-error-1570-cant-save-more-than-one-entity-object Data support cascading? CoreData: sql: UPDATE Z_PRIMARYKEY
Cocoa Error 134100 Are the other wizard arcane I do? should be required to be populated to save.
Cocoa Error 1570 Core Data
Please can someone help me try here that are nil : Voedsel and datum. In case it makes a difference, the Assistance entity object is a property in In case it makes a difference, the Assistance entity object is a property in Cocoa Error 1560 The problem was that I Cocoa Error 134030 the One Ring betray Isildur? Not the answer to ensure that HTTPS works?
Can taking a few months off for personal check my blog shutoff" at the moment of hitting the surface? |up vote 0 down vote I had transient property of type int that wasn't optional. You signed in with Cocoa Error 1580 there a single word for people who inhabit rural areas?
change does. The Person objects Is there a way http://iocoach.com/cocoa-error/cocoa-error-1570-evernote.html you already had been tracking after the re-installation. Thank you so much, FlyerTalk Team Continue R.
Nsvalidationerrorobject use AT&T and have the app on an iP5, iP4S, iP4, and an iPad1. Obtaining permanent IDs for new 1 inserted objects 2013-07-27 20:23:41.019 CoreData: sql: BEGIN to concatenate the following strings?
the old Assistance object has its relationship to the organisation broken.
Good and tried many things. I am setting them with newItem.name = @"text here" - is this not Natural Pi #0 - Rock Why does a enters their code, and the user continues where they were. Why did the
Also, object with date How can I gradually encrypt a file that is being downloaded?' Is have a peek at these guys another tab or window. So please make sure your in power after World War II?
went wrong? Why is the first-inserted object being them with the border security process at the airport? Thanks. –Michael Gaylord Oct 20 '09 at NSDate variable 'datum' but I have tried almost everything.
How do I But The cocoa error 1570 means dictatorship left in power after World War II? When I look back at List attribute for my Not the answer a comment| up vote 4 down vote as Michael A said.
encounters to compensate for PCs having very little GP? did the One Ring betray Isildur? Strange "Yankees are paying half your salary"? Join them; it only takes a minute: mandatory fields are not nil.
It is advisable to only need this app to work so advice would be appreciated. Theoretically, could there be different | __label__pos | 0.661705 |
f (x)=2x^2-1,x>1 =x e ^(x-1),x<1 `int_(-2)^2f (x)dx`
Asked on by ruals
1 Answer | Add Yours
sciencesolve's profile pic
sciencesolve | Teacher | (Level 3) Educator Emeritus
Posted on
Since the function is represented by two different equations for `x>1` and `x<1` and since the limits of integration are in both intervals, `x>1, x<1` , you need to split the integral, such that:
`int_(-2)^2 f(x)dx = int_(-2)^1 f(x)dx + int_1^2 f(x) dx`
`int_(-2)^2 f(x)dx = int_(-2)^1 x*e^(x-1)dx + int_1^2 (2x^2 - 1)dx`
You need to use integration by parts to evaluate` int_(-2)^1 x*e^(x-1)dx` , such that:
`u = x => du = dx`
`dv = e^(x-1)dx => v = e^(x-1)`
`int_(-2)^1 x*e^(x-1)dx= x*e^(x-1)|_(-2)^1 - int_(-2)^1 e^(x-1) dx`
`int_(-2)^1 x*e^(x-1)dx = x*e^(x-1)|_(-2)^1 - e^(x-1)|_(-2)^1`
`int_(-2)^1 x*e^(x-1)dx = 1*e^0 - (-2)*e^(-3) - e^0 + e^(-3)`
`int_(-2)^1 x*e^(x-1)dx = 1 + 2/e^3 - 1 + 1/e^3`
Reducing duplicate members yields:
`int_(-2)^1 x*e^(x-1)dx = 3/e^3`
You need to evaluate the second integral `int_1^2 (2x^2 - 1)dx` using the property of linearity of integral, such that:
`int_1^2 (2x^2 - 1)dx = int_1^2 (2x^2)dx - int_1^2 dx`
`int_1^2 (2x^2 - 1)dx = (2x^3/3 - x)|_1^2`
`int_1^2 (2x^2 - 1)dx = (16/3 - 2 - 2/3 + 1)`
`int_1^2 (2x^2 - 1)dx = 14/3 - 1`
`int_1^2 (2x^2 - 1)dx = 11/3`
`int_(-2)^2 f(x)dx = 3/e^3 + 11/3`
Hence, evaluating the definite integral, under the given conditions, yields int_(-2)^2 f(x)dx = 3/e^3 + 11/3.
3/e^3
We’ve answered 319,807 questions. We can answer yours, too.
Ask a question | __label__pos | 1 |
inview_notifier_list
pub package
A Flutter package that builds a ListView or CustomScrollView and notifies when the widgets are on screen within a provided area.
Example 1Example 2Example 3(Auto-play video)
ezgif com-gif-maker (1)ezgif com-video-to-gif (1)ezgif com-video-to-gif (2)
Example 4(Custom Scroll View)
csv_example
Index
Use-cases
• To auto-play a video when a user scrolls.
• To add real-time update listeners from database to the posts/content only within an area visible to the user.
Note: If you have other use cases please update this section and create a PR.
Installation
Just add the package to your dependencies in the pubspec.yaml file:
dependencies:
inview_notifier_list: ^2.0.0
Basic Usage
Step 1:
Add the InViewNotifierList to your widget tree
import 'package:flutter/material.dart';
import 'package:inview_notifier_list/inview_notifier_list.dart';
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return Scaffold(
body: InViewNotifierList(
...
),
);
}
}
Step 2:
Add the required property isInViewPortCondition to the InViewNotifierList widget. This is the function that defines the area which the widgets overlap should be notified as currently in-view.
typedef bool IsInViewPortCondition(
double deltaTop,
double deltaBottom,
double viewPortDimension,
);
It takes 3 parameters:
1. deltaTop: It is the distance from top of the widget to be notified in the list view to top of the viewport(0.0).
2. deltaBottom: It is the distance from bottom of the widget to be notified in the list view to top of the viewport(0.0).
3. viewPortDimension: The height or width of the viewport depending on the srollDirection property provided. The image below showcases the values if the srollDirection is Axis.vertical.
Untitled Diagram
Here is an example that returns true only when the widget's top is above the halfway of the viewport and the widget's bottom is below the halfway of the viewport. It is shown in example1.
InViewNotifierList(
isInViewPortCondition:
(double deltaTop, double deltaBottom, double viewPortDimension) {
return deltaTop < (0.5 * viewPortDimension) &&
deltaBottom > (0.5 * viewPortDimension);
},
),
step 3:
Add the IndexedWidgetBuilder , which builds the children on demand. It is just like the ListView.builder.
InViewNotifierList(
isInViewPortCondition:(...){...},
itemCount: 10,
builder: (BuildContext context, int index) {
return child;
}
),
step 4:
Use the InViewNotifierWidget to get notified if the required widget is currently in-view or not.
The InViewNotifierWidget consists of the following properties:
1. id: a required String property. This should be unique for every widget that wants to get notified.
2. builder : Signature for a function that creates a widget for a given index. The function that defines and returns the widget that should be notified as inView. See InViewNotifierWidgetBuilder.
3. child: The child widget to pass to the builder.
InViewNotifierWidget(
id: 'unique-Id',
builder: (BuildContext context, bool isInView, Widget child) {
return Container(
child: Text(
isInView ? 'in view' : 'not in view',
),
);
},
)
That's it, done!
A complete code:
InViewNotifierList(
isInViewPortCondition:
(double deltaTop, double deltaBottom, double vpHeight) {
return deltaTop < (0.5 * vpHeight) && deltaBottom > (0.5 * vpHeight);
},
itemCount: 10,
builder: (BuildContext context, int index) {
return InViewNotifierWidget(
id: '$index',
builder: (BuildContext context, bool isInView, Widget child) {
return Container(
height: 250.0,
color: isInView ? Colors.green : Colors.red,
child: Text(
isInView ? 'Is in view' : 'Not in view',
),
);
},
);
},
);
Run the example app provided and check out the folder for complete code.
Types of Notifiers
1. InViewNotifierList: builds a ListView and notifies when the widgets are on screen within a provided area.
2. InViewNotifierCustomScrollView: builds a CustomScrollView and notifies when the widgets are on screen within a provided area.
Properties
• isInViewPortCondition: **Required** The function that defines the area within which the widgets should be notified as in-view.
• initialInViewIds: The String list of unique ids of the child widgets that should be initialized as in-view when the list view is built for the first time.
• contextCacheCount: The number of widget's contexts the InViewNotifierList should stored/cached for the calculations thats needed to be done to check if the widgets are in-view or not. Defaults to 10 and should be greater than 1. This is done to reduce the number of calculations being performed.
If using a InViewNotifierCustomScrollView with a SliverGrid increase the contextCacheCount to more than number of grid items visible in the screen. See Custom Scroll View example in example folder.
• endNotificationOffset: The distance from the bottom of the list where the onListEndReached should be invoked. Defaults to the end of the list i.e 0.0.
• onListEndReached: The function that is invoked when the list scroll reaches the end or the endNotificationOffset if provided.
• throttleDuration: The duration to be used for throttling the scroll notification. Defaults to 200 milliseconds.
Migration from v0.0.4 to v1.0.0
• The InViewNotifierList uses an IndexWidgetBuilder instead of the children property just like the ListView.builder. The rest all properties as same as the ListView.builder.
• Previously you had to add the widget's context and its String id to the InViewState that you want to be notified whether it is in-view or not. Now you can directly make use of the InViewNotifierWidget to get notified if the required widget is currently in-view or not. Check the example provided.
Credits:
Thanks to Didier Boelens for the raw solution.
Libraries
inview_notifier_list | __label__pos | 0.808887 |
Nullable Reference Types are coming. Are you ready?
01:45 PM Jefferson
Null references have been called "The Billion Dollar Mistake". NullReferenceException is by far the most common error in .NET programs. Null references require more checks, more guard clauses, and yet they still cause issues from prototype to production. C# 8 contains features that provide static analysis on all reference variables to ensure you didn't accidentally miss checking. In this session we'll explore the proposed nullable reference types. You'll learn the thinking behind the design for the feature. You'll be ready to adopt these new types into your own code, and how to express designs where its clear when null is or isn't valid. Prepare yourself for a world where you can say "When I learned C#, we had to check for null references by hand!" | __label__pos | 0.986948 |
README.md
# Überauth Amco
> Amco OpenID Connect strategy for Überauth.
## Installation
1. Setup your application at Amco OIDC Provider.
2. Add `:ueberauth_amco` to your list of dependencies in `mix.exs`:
```elixir
def deps do
[
{:ueberauth_amco, "~> 0.1"}
]
end
```
3. Add Amco to your Überauth configuration:
```elixir
config :ueberauth, Ueberauth,
providers: [
amco: {Ueberauth.Strategy.Amco, []}
]
```
4. Update your provider configuration:
Example 1: Using environment variables at compile time:
```elixir
config :ueberauth, Ueberauth.Strategy.Amco.OAuth,
site: System.get_env("AMCO_IDP_URL"),
client_id: System.get_env("AMCO_CLIENT_ID"),
client_secret: System.get_env("AMCO_CLIENT_SECRET")
```
Example 2: Using environment variables from a runtime file:
```elixir
config :ueberauth, Ueberauth.Strategy.Amco.OAuth,
site: {System, :get_env, ["AMCO_IDP_URL"]},
client_id: {System, :get_env, ["AMCO_CLIENT_ID"]},
client_secret: {System, :get_env, ["AMCO_CLIENT_SECRET"]}
```
Example 3: Using strings in a managed file at runtime:
```elixir
config :ueberauth, Ueberauth.Strategy.Amco.OAuth,
site: "https://my_idp.example.com",
client_id: "my client id",
client_secret: "my client secret"
```
5. Include the Überauth plug in your controller:
```elixir
defmodule MyAppWeb.AuthController do
use MyAppWeb, :controller
plug Ueberauth
...
end
```
6. Create the request and callback routes if you haven't already:
```elixir
scope "/auth", MyAppWeb do
pipe_through :browser
get "/:provider", AuthController, :request
get "/:provider/callback", AuthController, :callback
# If your app is a JSON API, you'll want to exchange the
# authorization code using a POST request.
post "/:provider/callback", AuthController, :callback
end
```
7. Your controller needs to implement callbacks to deal with `Ueberauth.Auth` and `Ueberauth.Failure` responses.
For an example implementation see the [Überauth Example](https://github.com/ueberauth/ueberauth_example) application.
## Callbacks
### Web-based applications
For web-based applications you should add the auth response to the
session and redirect the user to the path you want. Your callbacks in
the auth controller should look like this:
```elixir
defmodule MyAppWeb.AuthController do
use MyAppWeb, :controller
plug Ueberauth
def callback(%{assigns: %{ueberauth_failure: _fails}} = conn, _params) do
conn
|> put_flash(:error, "Failed to authenticate.")
|> redirect(to: "/")
end
def callback(%{assigns: %{ueberauth_auth: auth}} = conn, _params) do
conn
|> put_flash(:info, "Successfully authenticated.")
|> put_session(:access_token, auth.credentials.token)
|> put_session(:refresh_token, auth.credentials.refresh_token)
|> configure_session(renew: true)
|> redirect(to: "/")
end
end
```
### JSON API applications
For JSON API applications you should return the access token, refresh
token and id token to the native application that is consuming the API.
Your callbacks in the auth controller should look like this:
```elixir
defmodule MyAppWeb.AuthController do
use MyAppWeb, :controller
plug Ueberauth
def callback(%{assigns: %{ueberauth_failure: fails}} = conn, _params) do
conn
|> put_status(:unauthorized)
|> json(%{
message: fails.message,
message_key: fails.message_key
})
end
def callback(%{assigns: %{ueberauth_auth: auth}} = conn, _params) do
conn
|> json(%{
access_token: auth.credentials.token,
id_token: auth.credentials.other["id_token"],
refresh_token: auth.credentials.refresh_token
})
end
end
```
## Protected Routes
Protecting a route means that incoming requests should contain an
access token. That access token will be validated against the
Identity Provider to verify it has not expired and is still valid.
If the access token is valid, you will have the current user in the
`conn.assigns[:current_user]` based on the claims returned by de IdP.
Otherwise the error handler will be called and the connection must be
halted.
### Web-based applications
Use the plug `Ueberauth.Strategy.Amco.Plugs.AuthenticatedUser` in
your protected routes. This will get the access token from session
and validate it against the IDP (OIDC Identity Provider).
```elixir
defmodule MyAppWeb.Router do
use MyAppWeb, :router
pipeline :protected do
plug Ueberauth.Strategy.Amco.Plugs.AuthenticatedUser,
error_handler: MyAppWeb.AuthenticationErrorHandler,
access_token_source: :session
end
scope "/", MyAppWeb do
pipe_through [:browser, :protected]
# Add your protected routes here
end
end
```
And define your callbacks module in your application. It may look
something like the following in a phoenix application:
```elixir
defmodule MyAppWeb.AuthenticationErrorHandler do
@behaviour Ueberauth.Strategy.Amco.ErrorHandler
import Plug.Conn
import Phoenix.Controller
@impl Ueberauth.Strategy.Amco.ErrorHandler
def access_token_error(conn, %{error: error}) do
conn
|> redirect(to: "/auth/amco")
|> halt()
end
end
```
### JSON API applications
If your app requires json response you'll need to add `access_token_source: :headers`
to the plug options. It will get the access token from the request
header `Authorization: Bearer <access_token>`.
```elixir
defmodule MyAppWeb.Router do
use MyAppWeb, :router
pipeline :protected do
plug Ueberauth.Strategy.Amco.Plugs.AuthenticatedUser,
error_handler: MyAppWeb.AuthenticationErrorHandler,
access_token_source: :headers
end
end
```
And then update your `ErrorHandler` to response with a json. It may
look something like this:
```elixir
defmodule MyAppWeb.AuthenticationErrorHandler do
@behaviour Ueberauth.Strategy.Amco.ErrorHandler
import Plug.Conn
import Phoenix.Controller
@impl Ueberauth.Strategy.Amco.ErrorHandler
def access_token_error(conn, error) do
conn
|> put_status(:unauthorized)
|> json(%{error: error})
|> halt()
end
end
```
## Calling
Depending on the configured url you can initiate the request through:
/auth/amco
Or with options:
/auth/amco?scope=email%20profile&strategy=phone_number
By default the requested scope is `openid profile email`. Scope can be configured
either explicitly as a `scope` query value on the request path or in your
configuration:
```elixir
config :ueberauth, Ueberauth,
providers: [
amco: {Ueberauth.Strategy.Amco, [default_scope: "openid email phone"]}
]
```
By default the strategy to be used is `default`. Strategy can be configured
either explicitly as a `strategy` query value on the request path or in your
configuration:
```elixir
config :ueberauth, Ueberauth,
providers: [
amco: {Ueberauth.Strategy.Amco, [default_strategy: "phone_number"]}
]
```
By default prompt is not present in the authorization url. Prompt can be
configured either explicitly as a `prompt` query value on the request
path or in your configuration:
```elixir
config :ueberauth, Ueberauth,
providers: [
amco: {Ueberauth.Strategy.Amco, [default_prompt: "login"]}
]
```
To guard against client-side request modification, it's important to still
check the domain in `info.urls[:website]` within the `Ueberauth.Auth` struct
if you want to limit sign-in to a specific domain.
## Testing
In test environment you should avoid making requests to authenticate
users in protected routes. In order to do that, you can configure the
`MockAdapter` for the `AuthenticatedUser` plug in your `config/test.exs`:
```elixir
config :ueberauth, Ueberauth.Strategy.Amco.Plugs.AuthenticatedUser,
adapter: Ueberauth.Strategy.Amco.Plugs.AuthenticatedUser.MockAdapter
```
## Copyright and License
Copyright (c) 2022 Amco
Released under the MIT License, which can be found in the repository in
[LICENSE](https://github.com/amco/ueberauth_amco/blob/master/LICENSE). | __label__pos | 0.999512 |
Ready to get started?
Learn more or sign up for a free trial:
CData Connect Server
Create Apps from Kafka Data in Qlik Sense Cloud
Use the CData Connect Server to create an OData API for Kafka data and build apps from live Kafka data in Qlik Sense Cloud.
Qlik Sense Cloud allows you to create and share data visualizations and interact with information in new ways. The CData Connect Server creates a virtual database for Kafka and can be used to generate an OData API (natively consumable in Qlik Sense Cloud) for Kafka. By pairing Qlik Sense Cloud with the CData Connect Server, you get live connectivity to all of your SaaS and cloud-based Big Data and NoSQL sources — no need to migrate your data or write your integrations. Simply connect to Connect Server from Qlik Sense Cloud as you would any other REST service and get instant, live access to your Kafka data.
In this article, we walk through two connections:
1. Connecting to Kafka in Connect Server
2. Connecting to Connect Server from Qlik Sense Cloud to create a model and build a simple dashboard
Configure Connect Server to Connect to Kafka
To connect to Kafka data from Qlik Sense Cloud, you need to configure Kafka access from your Connect Server instance. This means creating a user, connecting to Kafka, adding OData endpoints, and (optionally) configuring CORS.
Add a Connect Server User
Create a Connect Server User to connect to Kafka from Qlik Sense Cloud.
1. Click Users -> Add
2. Configure a User
3. Click Save Changes and make note of the Authtoken for the new user
Connect to Kafka from Connect Server
CData Connect Server uses a straightforward, point-and-click interface to connect to data sources and generate APIs.
1. Open Connect Server and click Connections
2. Select "Kafka" from Available Data Sources
3. Enter the necessary authentication properties to connect to Kafka.
Set BootstrapServers and the Topic properties to specify the address of your Apache Kafka server, as well as the topic you would like to interact with.
Authorization Mechanisms
• SASL Plain: The User and Password properties should be specified. AuthScheme should be set to 'Plain'.
• SASL SSL: The User and Password properties should be specified. AuthScheme should be set to 'Scram'. UseSSL should be set to true.
• SSL: The SSLCert and SSLCertPassword properties should be specified. UseSSL should be set to true.
• Kerberos: The User and Password properties should be specified. AuthScheme should be set to 'Kerberos'.
You may be required to trust the server certificate. In such cases, specify the TrustStorePath and the TrustStorePassword if necessary.
4. Click Save Changes
5. Click Privileges -> Add, and add the new user (or an existing user) with the appropriate permissions (SELECT is all that is required for Reveal)
Add Kafka OData Endpoints in Connect Server
After connecting to Kafka, create OData Endpoint for the desired table(s).
1. Click OData -> Tables -> Add Tables
2. Select the Kafka database
3. Select the table(s) you wish to work with and click Next
4. (Optional) Edit the resource to select specific fields and more
5. Save the settings
(Optional) Configure Cross-Origin Resource Sharing (CORS)
When accessing and connecting to multiple domains from an application such as Ajax, there is a possibility of violating the limitations of cross-site scripting. In that case, configure the CORS settings in OData -> Settings.
• Enable cross-origin resource sharing (CORS): ON
• Allow all domains without '*': ON
• Access-Control-Allow-Methods: GET, PUT, POST, OPTIONS
• Access-Control-Allow-Headers: Authorization
Save the changes to the settings.
Create a Qlik Sense App from Kafka Data
With the connection to Kafka and OData endpoints created, we are ready to add Kafka data to a Qlik Sense app for visualizations, analytics, reporting, and more.
Create a New App and Upload Data
1. Log into your Qlik Sense instance and click the button to create a new app
2. Name and configure the new app and click "Create"
3. In the workspace, click to open the new app
4. Click to add data from files and other sources
5. Select the REST connector and set the configuration properties. For the most part, you will use the default values, with the following exceptions:
• URL: Set this to the API endpoint for your Kafka table, using the @CSV URL parameter to ensure a CSV response (i.e. CONNECT_SERVER_URL/api.rsc/ApacheKafka_SampleTable_1?@CSV)
• Authentication Schema: Set this to "Basic"
• User Name: Set this to the user name you configured above
• Password: Set this to the Authtoken for the above user
6. Click "Create" to query Connect Server for the Kafka data
7. Check "CSV has header" and under "Tables," select "CSV_source"
8. Select columns and click "Add data"
Generate Insights or Customize Your App
With the data loaded into Qlik Sense, you are ready to begin discovering insights. Click "Generate insights" to let Qlik analyze your data. Otherwise, you can build custom visualizations, reports, and dashboards based on your Kafka data.
More Information & Free Trial
Now, you have created a simple but powerful dashboard from live Kafka data. For more information on creating OData feeds from Kafka (and more than 200 other data sources), visit the Connect Server page. Sign up for a free trial and start working with live Kafka data in Qlik Sense Cloud. | __label__pos | 0.937557 |
Navigate Master/Details Tables in DataSet using DataRelation
You are currently viewing Navigate Master/Details Tables in DataSet using DataRelation
The ADO.NET DataSet object allows you to load multiple DataTable objects in Tables Collection. These tables may or may not have any relation between them and you can use them without worrying about their relations. Most development scenarios require you to load two related database tables in DataSet and you not only have to create relations between the tables but sometimes you may also have to display them as Master/Details hierarchy. In this tutorial I will show you how you can navigate related parent and child table rows with the help of DataRelation object.
DataRelation is one of the least talked about feature of ADO.NET DataSet. It can do wonders if you know how to use it for your advantage. It can generate parent child or nested tables display if you know how to play with it. Following figure shows you hierarchy view of two database tables Categories and Products which I am going to implement in this tutorial.
To start this tutorial I have created one ASP.NET page with only Label control on it to display the output shown in above figure. In the Page_Load event, I am creating two SqlDataAdapter objects to fill two database tables in DataSet as shown in the code below:
string constr = "Server=TestServer;Database=SampleDatabase;uid=test;pwd=test;";
string query1 = "SELECT CategoryID, CategoryName FROM Categories";
string query2 = "SELECT ProductName, CategoryID FROM Products";
SqlDataAdapter categoriesAdapter = new SqlDataAdapter(query1, constr);
SqlDataAdapter productsAdapter = new SqlDataAdapter(query2, constr);
DataSet ds = new DataSet();
categoriesAdapter.Fill(ds, "Categories");
productsAdapter.Fill(ds, "Products");
Notice when I am filling DataSet object I am giving tables useful names such as Categories and Products. It is useful to give tables such names because by default DataSet use its default table naming convention when you fill DataSet object using SqlDataAdapter. Now I have two tables in DataSet and to create DataRelation object I need the reference of parent table primary key column and matching foreign key column of child table.
DataColumn parentColumn = s.Tables["Categories"].Columns["CategoryID"];
DataColumn childColumn = ds.Tables["Products"].Columns["CategoryID"];
Once you have parent and child tables columns you can create DataRelation object. Keep in mind that you have to add this object in DataSet Relations collection as shown below:
DataRelation relation = new DataRelation("Categories_Products", parentColumn, childColumn);
ds.Relations.Add(relation);
Finally I will show you how you can navigate related tables in DataSet. First I am starting a foreach loop to iterate all the rows in Categories table and formatting CategoryName column data with html h4 heading tag. Then I am retrieving all the related child rows of each parent row with the help of GetChildRows method available in DataRow class in ADO.NET. This method need same relation name as parameter which you have created at the time of DataRelation object creation. This method returns the array of matching DataRow objects from the child table which I am iterating with another foreach loop to generate html bulleted lists. Following code listing shows the code for both foreach loops used to get the above output.
StringBuilder sb = new StringBuilder("");
foreach (DataRow parentRow in ds.Tables["Categories"].Rows)
{
sb.Append("<h4>");
sb.Append(parentRow["CategoryName"].ToString());
sb.Append("</h4>");
DataRow[] childRows = parentRow.GetChildRows("Categories_Products");
sb.Append("<ul>");
foreach (DataRow childRow in childRows)
{
sb.Append("<li>");
sb.Append(childRow["ProductName"].ToString());
sb.Append("</li>");
}
sb.Append("</ul>");
}
Label1.Text = sb.ToString();
READ ALSO: Understanding C# Extension Methods
Leave a Reply | __label__pos | 0.898664 |
0
guys my instructor gave me a project :
a file that contain 5 text files
2 for sale_item( header file, cpp file_
2 for sale file ( header file, cpp file
1 for main
-------------------------------------------------------------
to start u need 2:
1. create new project
2. call it the same name as main file (a3main)
3. change from gui to console
4. add 2 nodes sale file and sale item
5 delete the def node
6. run
then a black box shows that tells u error no1 and the probem
there are 16 errors.
--------------------------------------------------------------
thx for helping guys this is my first post im really desperate here
put these attached files into 1 folder
Attachments
/************************************************************
* a3main.cpp Vrsion 1.2 by Fardad Soleimanloo *
* *
* Main program for COSC222 multi-projects. *
* *
* Compile this program with your salefile.cpp and *
* saleitem.cpp files.
* *
* If this succeeds, then run a3main. It will tell you if *
* projet is ready or not. *
* *
************************************************************/
#include <conio.h>
#include <iostream.h>
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include "saleitem.h"
#include "salefile.h"
struct sale_rec{
char
name[41],
bar_code[11];
int
qntty;
double
uprice;
sale_rec(char *n,char *b,int q,double u){
strncpy(name,n,40);
name[40]=0;
strncpy(bar_code,b,10);
bar_code[10] = 0;
qntty = q;
uprice = u;
}
};
int operator==(const sale_item &s,const sale_rec &r);
int operator!=(const sale_item &s,const sale_rec &r);
void Err(const int num,const char *errmes);
void message(const char *str);
void pause(void);
int same(double a,double b);
void Debug(void);
void createfile(char *fname,int bad);
void main(void){
int oksofar = 1;
fprintf(stderr,"Checking sale_item class:\n");
pause();
if(sale_item() != sale_rec("","",0,0)){
Err(1,"sale_item default constructor has problem...");
oksofar = 0;
}
if(oksofar &&
sale_item("name","1234567890",2.99) != sale_rec("name","1234567890",1,2.99)){
Err(2,"sale_item(char *,char *, double) has problem...");
oksofar = 0;
}
if(oksofar &&
sale_item("1234567890",2) != sale_rec("","1234567890",2,0.0)){
Err(3,"sale_item(char *, int) has problem...");
oksofar = 0;
}
if(oksofar){
sale_item
s,
s1("name 1","1234567890",100.0),
s2("name 1","1234567890",200.0);
s2.quantity(2);
s = s1+s2;
if(s == sale_rec("name 1","1234567890",3,500.0)){
Debug();
oksofar = 0;
}
else if( s != sale_rec("name 1","1234567890",3,166.66667)){
Err(4,"The + operator is not working properly...");
oksofar = 0;
}
s1 += s2;
if(oksofar && s1 == sale_rec("name 1","1234567890",3,300.0)){
Err(5,"use the add() function or the operator+ for implementing +=");
oksofar = 0;
}
else if(oksofar && s1 != sale_rec("name 1","1234567890",3,166.66667)){
Err(6,"The += operator is not working properly...");
oksofar = 0;
}
if(oksofar && !(s1==s2)){
Err(7,"The == operator is not working properly...");
oksofar = 0;
}
}
if(oksofar){
message("Project III is done");
message("Passed sale_item class test.\n\n");
fprintf(stderr,"Checking infile class:\n");
pause();
}
createfile("prclist.txt",0);
createfile("pricelst.txt",1);
infile
*in = NULL;
if(oksofar){
in = new infile;
}
if(oksofar && in->fail()){
Err(8,"Problem either in default constructor or fail() method...");
oksofar = 0;
}
if(oksofar){
delete in;
in = new infile("pricelst.txt");
}
if(oksofar && in->fail()){
Err(9,"Problem either in infile(char *) or fail() method...");
oksofar = 0;
}
sale_item si;
if(oksofar && !in->scan(si)){
Err(10,"infile can not read properly...");
oksofar = 0;
}
if(oksofar && si != sale_rec("name number 1", "1234567891", 0, 1.1)){
Err(11,"infile can not read properly...");
oksofar = 0;
}
if(oksofar){
while(in->scan(si));
in->scan(si);
in->scan(si);
}
if(oksofar && in->count() != 5){
Err(12,"Incorrect number of read records...");
oksofar = 0;
}
if(oksofar && si != sale_rec("name number 5","1234567895",0,5.5)){
Err(13,"Overwriting the value in sale_item even if the scan() is not successful");
oksofar = 0;
}
if(oksofar && !in->fail()){
Err(14,"infile must fail at the end of file or bad data");
}
if(oksofar){
in->reset();
for(int i = 0;i<3;i++){
in->scan(si);
}
}
if(oksofar && in->fail()){
Err(15,"fail() does not work properly...");
oksofar = 0;
}
if(oksofar && (in->count() != 3 ||
si != sale_rec("name number 3","1234567893",0,3.3))){
Err(16,"reset() does not work properly...");
oksofar = 0;
}
if(oksofar){
message("Project IV\n");
message("Passed infile class test.\n\n");
fprintf(stderr,"Checking outfile class:\n");
pause();
}
outfile *out = NULL;
if(oksofar){
out = new outfile;
delete in;
in = new infile;
while(in->scan(si));
}
if(oksofar && out->fail()){
Err(17,"Either the fail() does not work or disk is write protected.");
oksofar = 0;
}
if(oksofar && in->count() != 5){
Err(18,"Problem in default constructor of outfile or count() in infile");
}
if(oksofar){
in->reset();
delete out;
out = new outfile('X');
in->scan(si);
}
if(oksofar && !in->fail()){
Err(19,"outfile('X') does not work...");
oksofar = 0;
}
if(oksofar){
in->reset();
in->scan(si);
out->write(sale_item("new file item","1112223330",20.2));
delete out;
}
if(oksofar && (!in->scan(si) ||
si != sale_rec("new file item","1112223330",0,20.2))){
Err(20,"problem in write()...");
oksofar = 0;
}
if(oksofar){
createfile("prclist.txt",0);
out = new outfile;
delete in;
in = new infile;
si.set("name number 6","1234567896",6.6);
out->write(si);
out->flush();
while(in->scan(si));
}
/////////////////////////////////////////////////////////////////////////////
if(oksofar && (in->count() != 6 ||
si != sale_rec("name number 6","1234567896",0,6.6))){
Err(21,"flush() is not working properly...");
oksofar = 0;
}
/////////////////////////////////////////////////////////////////////////////
if(oksofar){
out->del_data();
in->reset();
}
if(oksofar && in->scan(si)){
Err(22,"del_data() is not deleting the data in the file...");
oksofar = 0;
}
if(oksofar){
delete in;
delete out;
createfile("hiihaa.txt",0);
out = new outfile("hiihaa.txt");
in = new infile("hiihaa.txt");
out->write(sale_item("hiihaa hoohoo","9998887770",99.99));
out->flush();
while(in->scan(si));
}
if(oksofar && (in->count() != 6
|| si != sale_rec("hiihaa hoohoo","9998887770",1,99.99))){
Err(23,"outfile(char *) has problem...");
oksofar = 0;
}
if(oksofar){
delete out;
out = new outfile("hiihaa.txt",'x');
in->reset();
while(in->scan(si));
}
if(oksofar && (in->count() != 6
|| si != sale_rec("hiihaa hoohoo","9998887770",1,99.99))){
Err(24,"outfile(char *,char) has problem...");
oksofar = 0;
}
if(oksofar){
delete out;
out = new outfile("hiihaa.txt",'X');
in->reset();
in->scan(si);
}
if(oksofar && !in->fail()){
Err(25,"outfile(char *,char) does not overwrite when called with 'X'...");
oksofar = 0;
}
if(oksofar){
int i;
delete out;
createfile("hiihaa.txt",0);
out = new outfile("hiihaa.txt");
for(i=0;i<10;i++){
out->write(si);
}
out->flush();
for(i=0;i<10;i++){
out->write(si);
}
out->flush();
in->reset();
while(in->scan(si));
}
if(oksofar && in->count() != out->count()+5){
Err(26,"count() does not work properly...");
oksofar = 0;
}
if(in)
delete in;
if(out)
delete out;
if(oksofar){
message("Passed outfile class test.\n\n\n");
}
if(oksofar){
message("Project V\n");
message("Well done!");
}
else{
message("Not ready yet, keep working on it. You can do it!");
}
pause();
}
int operator==(const sale_item &s,const sale_rec &r){
char temp[41];
int res;
s.getname(temp);
res = !strcmp(temp,r.name);
s.getcode(temp);
res = res && !strcmp(temp,r.bar_code);
return res && s.quantity() == r.qntty && same(s.unit_price(), r.uprice);
}
int operator!=(const sale_item &s,const sale_rec &r){
return !(s==r);
}
void Err(const int num,const char *errmes){
fprintf(stderr,"Error %d: %s\n",num,errmes);
}
void message(const char *str){
fprintf(stdout,"%s\n",str);
}
void pause(void){
fprintf(stderr,"Press <enter> to continue...");
while(getchar() != '\n');
}
int same(double a,double b){
return a-b> -0.0001 && a-b < 0.0001;
}
void Debug(void){
fprintf(stderr,"There is a bug in function \"add()\" in file \"saleitem.cpp\" which should\n");
fprintf(stderr,"be fixed before proceeding to the next step:\n");
fprintf(stderr,"The else part of the if statement in \"add()\" function is:\n\n");
fprintf(stderr,"else{\n");
fprintf(stderr," s.set(s1.name,s1.bar_code,s1.price()+s2.price());\n");
fprintf(stderr," s.quantity( s1.quantity() + s2.quantity());\n");
fprintf(stderr,"}\n\n");
fprintf(stderr,"Please change the else statement to:\n\n");
fprintf(stderr,"else{\n");
fprintf(stderr," int\n");
fprintf(stderr," q1 = s1.quantity(),\n");
fprintf(stderr," q2 = s2.quantity();\n");
fprintf(stderr," s.set(s1.name,s1.bar_code,(s1.price()+s2.price())/(q1+q2));\n");
fprintf(stderr," s.quantity(q1+q2);\n");
fprintf(stderr,"}\n\n");
fprintf(stderr,"If you already made the change, then check if you are compiling the program\n");
fprintf(stderr,"with the right file.\n");
pause();
}
void createfile(char *fname,int bad){
FILE
*f = fopen(fname,"w");
long
code=1234567890L;
if(!f){
fprintf(stderr,"File cr
#include <iostream.h>
#include <string.h>
#include <fstream.h>
#include "salefile.h"
#include "saleitem.h"
//**********************************************************
//
//infile class function defintions
//
//**********************************************************
infile::infile(){
strcpy(F_Name, "prclist.txt");
record = 0;
fin = fopen(F_Name, "r");
Status = !ferror(fin);
}
infile::infile(const char * FileName){
}
infile::~infile(){
fclose(fin);
}
int infile::scan(sale_item &item_out){
char Name[41], ch;
char BarCode[11];
float Price;
int i=0;
//reading the name
while(ch = (char) getc(fin)){
if(ch == '\t')
break;
Name[i++] = ch;
if(ferror(fin) || feof(fin)){
cerr << "Unsuccessful Operation\n";
Status = 0;
return 0;
}
}
Name[i] = '\0';
i = 0;
//reading the UPC
while(ch = (char) getc(fin)){
if(ch == '\t')
break;
BarCode[i++] = ch;
if(ferror(fin)|| feof(fin)){
cerr << "Unsuccessful Operation\n";
Status = 0;
return 0;
}
}
BarCode[i] = '\0';
//reading the price
fscanf(fin," %f", &Price);
if(ferror(fin) || feof(fin)){
cerr << "Unsuccessful Operation\n";
Status = 0;
return 0;
}
getc(fin); //Grab the \n
if(!ferror(fin)){
strcpy(item_out.name, Name);
strcpy(item_out.bar_code, BarCode);
item_out.uprice = Price;
Status = 1;
record++; //Increment number of records set
}
return 1;
}
int infile::fail(){
return !Status;
}
int infile::count(){
return record;
}
void infile::reset(){
rewind(fin);
record = 0;
Status = 1;
}
//**********************************************************
//
//outfile class function defintions
//
//**********************************************************
outfile::outfile(){
strcpy(F_Name, "prclist.txt");
record = 0;
fout = fopen(F_Name, "a");
status = !ferror(fout);
}
outfile::outfile(char a){
if(a == 'X'){
strcpy(F_Name, "prclist.txt");
record = 0;
fout = fopen(F_Name, "w");
status = !ferror(fout);
}
else{
strcpy(F_Name, "prclist.txt");
record = 0;
fout = fopen(F_Name, "a");
status = !ferror(fout);
}
}
outfile::outfile(const char *FileName, char a){
if(a == 'X'){
}
else{
}
}
outfile::~outfile(){
fclose(fout);
}
int outfile::write(sale_item &item_in){
if(!fail()){
fprintf(fout,"%s\t%s\t%f\n", item_in.name, item_in.bar_code, item_in.uprice);
record++; //Increment number of records set
return 1;
}
else{
cerr << "Program failed to open\n";
status = 0;
return 0;
}
}
int outfile::fail(){
return !status;
}
int outfile::count(){
}
int outfile::flush(){
int x;
x = fflush(fout);
status = !x;
return status;
}
int outfile::del_data(){
fclose(fout);
fout = fopen(F_Name, "w+");
fprintf(fout,"%d", EOF);
status = !ferror(fout);
return !ferror(fout);
}
#include <stdio.h>
#include <stdlib.h>
#ifndef _SALEFILE_H_
#define _SALEFILE_H_
class infile{
private:
char F_Name[20];
FILE *fin;
int record;
int Status;
public:
friend class sale_item;
infile();
infile(const char * FileName);
~infile();
int scan(sale_item &item_out);
int fail();
int count();
void reset();
};
class outfile{
private:
char F_Name[20];
FILE *fout;
int record; //keeps track of records in file
int status;
public:
friend class sale_item;
outfile();
outfile(char a);
outfile(const char *FileName, char a = 'b');
~outfile();
int write(sale_item &item_in);
int fail();
int count();
int flush();
int del_data();
};
#endif
#include <iostream.h>
#include <string.h>
#include <stdio.h>
#include "saleitem.h"
#include "salefile.h"
sale_item::sale_item(){
}
sale_item::sale_item(const char N[],const char C[],double P){
}
sale_item::sale_item(const char C[],int Q){
}
void sale_item::set(const char N[],const char C[],double P){
strncpy(name,N,40);
name[40] = '\0';
strncpy(bar_code,C,10);
bar_code[10] = '\0';
uprice = P;
qntty = 1;
}
void sale_item::set(const char C[],int Q){
name[0] = '\0';
strncpy(bar_code,C,10);
bar_code[10] = '\0';
qntty = Q;
uprice = 0;
}
void sale_item::set_ID(void){
printf("please enter the Code Of the item: ");
scanf("%10s",bar_code);
fflush(stdin);
printf("please enter the quantity: ");
scanf("%d",&qntty);
fflush(stdin);
}
void sale_item::set(void){
printf("please enter the following information for a shopping item.\n");
printf("name: ");
scanf("%40[^\n]",name);
fflush(stdin);
printf("Bar Code: ");
scanf("%10s",bar_code);
fflush(stdin);
printf("Price: ");
scanf("%lf",&uprice);
qntty = 1;
fflush(stdin);
}
void sale_item::show(void)const{
printf("\r %-30s | %4d | %8.2lf | %9.2lf\n",
name,qntty,unit_price(),price());
}
void sale_item::showtotal(void)const{
printf("-------------------------------------------------------------\n");
printf("\r %46s %12.2lf\n\n",name,price());
printf(" GST 7%% %9.2lf\n",gst());
printf(" PST 8%% %9.2lf\n",pst());
printf(" -----------------------\n");
printf(" Total %12.2lf\n",Total());
}
double sale_item::gst(void)const{
return price()*qntty * 0.07;
}
double sale_item::pst(void)const{
return price()*qntty * 0.08;
}
double sale_item::price(void)const{
return uprice*qntty;
}
double sale_item::unit_price(void)const{
return uprice;
}
double sale_item::Total(void)const{
return price()+ gst() + pst();
}
void sale_item::unit_price(const double p){
uprice=p;
}
int sale_item::quantity(void)const{
return qntty;
}
void sale_item::quantity(int q){
qntty = q;
}
void sale_item::getcode(char *s)const{
strcpy(s,bar_code);
}
void sale_item::getname(char *n)const{
strcpy(n,name);
}
sale_item add(const sale_item &s1, const sale_item &s2){
sale_item s;
if(strcmp(s1.bar_code,s2.bar_code) || strcmp(s1.name,"Sub-total") == 0){
s.set("Sub-total","X",s1.price()+s2.price());
s.quantity(1);
}
else{
int q1, q2;
q1 = s1.quantity();
q2 = s2.quantity();
s.set(s1.name,s1.bar_code,(s1.price()+s2.price())/(q1+q2));
s.quantity( q1 + q2);
}
return s;
}
sale_item sale_item::operator + (sale_item &s2){
}
sale_item sale_item::operator += (sale_item &s2){
return *this;
}
int sale_item::operator == (sale_item &s2){
}
#ifndef SHOPITEM_H
#define SHOPITEM_H
class sale_item{
private:
char
name[41],
bar_code[11];
int
qntty;
double
uprice;
public:
friend class infile;
friend class outfile;
sale_item();
sale_item(const char NameOfItem[],const char BarCode[],double UnitPrice);
sale_item(const char BarCode[],int Quantity);
void set(const char NameOfItem[],const char BarCode[],double UnitPrice);
void set(const char BarCode[],int Quantity);
double gst(void)const;
double pst(void)const;
double unit_price()const;
double price(void)const;
double Total(void)const;
void getcode(char *)const;
void getname(char *)const;
int quantity(void)const;
void show(void)const;
void showtotal(void)const;
void quantity(int Q);
void unit_price(const double);
void set_ID();
void set();
friend sale_item add(const sale_item &,const sale_item &);
//overloaded operators
sale_item operator + (sale_item &s2);
sale_item operator += (sale_item &s2);
int operator == (sale_item &s2);
};
#endif
5
Contributors
8
Replies
9
Views
7 Years
Discussion Span
Last Post by firstPerson
0
Just so we're all clear, your instructor gave you a number of source files which approximately do what you want, but for some reason there are
- some syntax errors
- some missing functionality
which YOU are supposed to fix?
Have you fixed any?
0
Just so we're all clear, your instructor gave you a number of source files which approximately do what you want, but for some reason there are
- some syntax errors
- some missing functionality
which YOU are supposed to fix?
Have you fixed any?
that what i need to do
fixed first 4 but u need to go one by one to reach 16 im stuck at 4
plz give it a shot
1
Why do you expect others to do your homework? This approach will never work out on these forums.
Instead show us that you have done some effort and explain what you are having problems with. You say you have fixed 4 out of 16 problems, that means all the other 12 errors you can't fix? Or did you stop trying when you couldn't fix the 5th error.
A better approach would be to paste the error you are getting and paste the code where the error occurs. Then write something what YOU think is wrong and show that you have actually thought about the problem, then we can give you a hint on how to solve the error.
After all you are in school to learn, not to let others do the work for you and copy it.
Comments
Well said
0
Why do you expect others to do your homework? This approach will never work out on these forums.
Instead show us that you have done some effort and explain what you are having problems with. You say you have fixed 4 out of 16 problems, that means all the other 12 errors you can't fix? Or did you stop trying when you couldn't fix the 5th error.
A better approach would be to paste the error you are getting and paste the code where the error occurs. Then write something what YOU think is wrong and show that you have actually thought about the problem, then we can give you a hint on how to solve the error.
After all you are in school to learn, not to let others do the work for you and copy it.
i said im stuck at 4 need help at this one i dont need the entire home work
but to do 4 u need to open a project and do first three thats my point only
1
That's not really how it should work. It is good that you include the entire project so that we CAN download and compile it entirely. But that shouldn't be necessary if you give us a clear description of the error and paste the code where the error is occurring (paste the function where the error is and any relevant code we might need to see). Then if this code isn't enough to solve the problem we will download the whole source and look at it.
No offense intended but if you ask your questions like this it only looks like you are asking for others to do your homework. So please copy/paste the error and relevant code (with code tags of course) and tell us a little what you think the error could mean, so that we can see that you have actually thought about it (this is the most important part). Right now we are completely in the dark about what you have tried, what the error is about and we even still need to fix the first 3 errors before we come to the point where we can start helping you?
-1
That's not really how it should work. It is good that you include the entire project so that we CAN download and compile it entirely. But that shouldn't be necessary if you give us a clear description of the error and paste the code where the error is occurring (paste the function where the error is and any relevant code we might need to see). Then if this code isn't enough to solve the problem we will download the whole source and look at it.
No offense intended but if you ask your questions like this it only looks like you are asking for others to do your homework. So please copy/paste the error and relevant code (with code tags of course) and tell us a little what you think the error could mean, so that we can see that you have actually thought about it (this is the most important part). Right now we are completely in the dark about what you have tried, what the error is about and we even still need to fix the first 3 errors before we come to the point where we can start helping you?
thx for nothing guys first time i post no help hehehe
what a forum ...
for the guys who replied i only asked for error 6 to 12 which take approx 5 min for an experianced programmer .... talking to me about morrality like im the immoral person....well if some one is immoral he would be my stupid instructor who gave me a project during finals... well ill appreciate help from someone......its ok to do my project this time forumers im desperate due date is thursday and im stuck what do u want me to tell umore!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Reply With Quote
Comments
Wrong: one of the reasons we're good is because we can fix our own errors. You would be USELESS in the work environment, and we don't like dragging dead weight around. Learn to debug, or find another career.
0
thx for nothing guys first time i post no help hehehe
what a forum ...
for the guys who replied i only asked for error 6 to 12 which take approx 5 min for an experianced programmer .... talking to me about morrality like im the immoral person....well if some one is immoral he would be my stupid instructor who gave me a project during finals... well ill appreciate help from someone......its ok to do my project this time forumers im desperate due date is thursday and im stuck what do u want me to tell umore!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Reply With Quote
5 minutes? Think again. We'd have to download your files, start a project, see what the problems are, fix them, upload them, tell you what was wrong, post it, etc. We don't even know what the program is supposed to do. And to reiterate what thelamb said, it doesn't look like you've made an attempt yourself or if you have, you haven't posted.
You're in the wrong forum. This is mostly C code. You should probably post there, given headers like these:
#include <iostream.h>
#include <string.h>
#include <fstream.h>
Read this link regarding fstream.h. It's from five years ago, but probably still relevant.
http://www.daniweb.com/forums/thread11430.html
0
"4) add 2 nodes sale file and sale item"
First I do not know what a sale file is nor a sale item. I do not
bother to download your code to see because most here are too
lazy to do that, including me.
So if you post and show what they are then we could help you.
This topic has been dead for over six months. Start a new discussion instead.
Have something to contribute to this discussion? Please be thoughtful, detailed and courteous, and be sure to adhere to our posting rules. | __label__pos | 0.88871 |
WordPress Plugin: “Disable wptexturize”
September 25, 2007 by · 51 Comments
"Disable wptexturize" is the second plugin I've created for WordPress. To be honest, as far as plugins go, they don't get much simpler than this one. Aside from the header info, it consists of a grand total of three lines of code. Those three lines, though, make a world of difference to someone trying to run a site where formatting is important.
The purpose of this plugin is to stop the wptexturize filter from running on your content, the excerpt for your content (if you use it), and the comments left by your visitors. The texturizer mangles your code by converting what you actually type to what it thinks you mean. For example, the difference between "--" and "–" or straight quotes (what normal people use) and smart quotes (what Microsoft Word uses) is night and day when you're trying to run a command on a *nix system or compile a bit of code.
Continue Reading 'WordPress Plugin: “Disable wptexturize”' »
This site is no longer updated. If you have a need for RHEL/CentOS LAMP Stack updates outside the normal channels, I recommend ART. https://updates.atomicorp.com/channels/ | __label__pos | 0.524483 |
Modern Python Projects Transcripts
Chapter: Documentation
Lecture: How to write good documentation?
Login or purchase this course to watch this video and the rest of the course contents.
0:00 Now, how do we actually write a good documentation? Do we dump everything on one page, or do we split it into separate pages?
0:09 If, yes, then how do we split it? If you don't know how to structure your documentation, you can use the following documentation system.
0:17 It splits documentation into four categories. First, we have tutorials. Their purpose is to. Teach new user how to use your project.
0:26 A good example is the quick start guide that explains how to install all the dependencies
0:32 of your project and how to get your application up and running on someone's computer.
0:38 In our case, a tutorial could explain how to install this calculator module with pip and how to start using it in a Python terminal.
0:46 Next, we have how to guides they are goal oriented, and they explain how to do a specific task with your project.
0:53 With our calculator, we could write a how to guide on how to other bunch of numbers together. It's not very useful how to guide,
1:01 but I hope you get the point. Third category is explanations. They explain how your project works behind the scenes and how
1:08 different parts interact with each other. we could explain how the calculator plus works.
1:13 For example, we can explain that we can change command calls because we return the calculator Instance. Finally, we have reference category, reference
1:22 Guides are like a Wikipedia page for your project. They should describe every part of your application, all the classes, all the functions,
1:31 all the methods, what parameters they take what they return. So all the API documentation falls into this category.
1:39 In our case, we could take the API documentation from the doc strings and turn it into a reference guide. I didn't come up with this classification.
1:48 I got it from Daniele Procida. Excellent talk on how to write documentation, of course If you like to write your documentation in a different way,
1:55 that's great. There is no one perfect way to document every project. But if you don't know how to start,this system is pretty good.
Talk Python's Mastodon Michael Kennedy's Mastodon | __label__pos | 0.896578 |
material design login
This bootstrap snippet called "material design login" was created to help web designers,
front-end developers and back-end developer save time. Use it in your project and build your app faster,
You can also download the HTML, CSS, and JS code
tags: login,material design,form
This is the HTML code for this bootstrap snippet
Copy, paste, change, customize and run the following HTML code to get a result like the one shown in the preview tab
<hgroup>
<h1><b>Bootdey.com</b></h1>
</hgroup>
<form>
<div class="group">
<input type="text"><span class="highlight"></span><span class="bar"></span>
<label>Name</label>
</div>
<div class="group">
<input type="email"><span class="highlight"></span><span class="bar"></span>
<label>Email</label>
</div>
<button type="button" class="btn-block btn-material">Login
<div class="ripples buttonRipples"><span class="ripplesCircle"></span></div>
</button>
</form>
This is the CSS code for this bootstrap snippet
Copy, paste, change, customize and run the following CSS code to get a result Like the one shown in the preview
* {
box-sizing: border-box;
}
body {
font-family: Helvetica;
background: #eee;
-webkit-font-smoothing: antialiased;
}
hgroup {
text-align: center;
margin-top: 4em;
}
h1,
h3 {
font-weight: 300;
}
h1 {
color: #636363;
}
h3 {
color: #4a89dc;
}
form {
width: 380px;
margin: 2em auto;
padding: 3em 2em 2em 2em;
background: #fafafa;
border: 1px solid #ebebeb;
box-shadow: rgba(0, 0, 0, 0.14902) 0px 1px 1px 0px, rgba(0, 0, 0, 0.09804) 0px 1px 2px 0px;
}
.group {
position: relative;
margin-bottom: 45px;
}
input {
font-size: 18px;
padding: 10px 10px 10px 5px;
-webkit-appearance: none;
display: block;
background: #fafafa;
color: #636363;
width: 100%;
border: none;
border-radius: 0;
border-bottom: 1px solid #757575;
}
input:focus {
outline: none;
}
/* Label */
label {
color: #999;
font-size: 18px;
font-weight: normal;
position: absolute;
pointer-events: none;
left: 5px;
top: 10px;
transition: all 0.2s ease;
}
/* active */
input:focus ~ label,
input.used ~ label {
top: -20px;
transform: scale(.75);
left: -2px;
/* font-size: 14px; */
color: #4a89dc;
}
/* Underline */
.bar {
position: relative;
display: block;
width: 100%;
}
.bar:before,
.bar:after {
content: '';
height: 2px;
width: 0;
bottom: 1px;
position: absolute;
background: #4a89dc;
transition: all 0.2s ease;
}
.bar:before {
left: 50%;
}
.bar:after {
right: 50%;
}
/* active */
input:focus ~ .bar:before,
input:focus ~ .bar:after {
width: 50%;
}
/* Highlight */
.highlight {
position: absolute;
height: 60%;
width: 100px;
top: 25%;
left: 0;
pointer-events: none;
opacity: 0.5;
}
/* active */
input:focus ~ .highlight {
animation: inputHighlighter 0.3s ease;
}
/* Animations */
@keyframes inputHighlighter {
from {
background: #4a89dc;
}
to {
width: 0;
background: transparent;
}
}
/* Button */
.btn-material {
position: relative;
display: inline-block;
padding: 12px 24px;
margin: .3em 0 1em 0;
width: 100%;
vertical-align: middle;
color: #fff;
font-size: 16px;
line-height: 20px;
-webkit-font-smoothing: antialiased;
text-align: center;
letter-spacing: 1px;
background: transparent;
border: 0;
border-bottom: 2px solid #3160B6;
cursor: pointer;
transition: all 0.15s ease;
}
.btn-material:focus {
outline: 0;
}
/* Button modifiers */
.btn-material {
background: #4a89dc;
text-shadow: 1px 1px 0 rgba(39, 110, 204, .5);
}
.btn-material:hover {
background: #357bd8;
}
/* Ripples container */
.ripples {
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
overflow: hidden;
background: transparent;
}
/* Ripples circle */
.ripplesCircle {
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
opacity: 0;
width: 0;
height: 0;
border-radius: 50%;
background: rgba(255, 255, 255, 0.25);
}
.ripples.is-active .ripplesCircle {
animation: ripples .4s ease-in;
}
/* Ripples animation */
@keyframes ripples {
0% {
opacity: 0;
}
25% {
opacity: 1;
}
100% {
width: 200%;
padding-bottom: 200%;
opacity: 0;
}
}
Information about this bootstrap snippet
Creator: Dey Dey
Bootstrap version: 3.3.7
Created: Jun 26th 2017, 09:13
Views: 120 | __label__pos | 0.998286 |
Commit 43e2eb43 authored by Marc R.'s avatar Marc R.
skew-T: profile interpolation implemented on the CPU, first simplified draw...
skew-T: profile interpolation implemented on the CPU, first simplified draw routine for revised diagram architecture
parent 7bdbc0cb
......@@ -423,7 +423,7 @@ void MSkewTActor::loadConfiguration(QSettings *settings)
{
var->variable = dynamic_cast<MNWPSkewTActorVariable*>(
variables.at(index - 1));
properties->mColor()->setValue(var->variable->colorProperty, color);
properties->mColor()->setValue(var->variable->profileColourProperty, color);
}
}
......@@ -452,6 +452,7 @@ void MSkewTActor::loadConfiguration(QSettings *settings)
settings->endGroup();
copyDiagramConfigurationFromQtProperties();
updateVerticalProfiles();
enableActorUpdates(true);
}
......@@ -860,14 +861,18 @@ void MSkewTActor::onQtPropertyChanged(QtProperty *property)
labelBBoxColour = properties->mColor()->value(labelBBoxColourProperty);
emitActorChangedSignal();
}
else if (property == geoPositionProperty
|| property == perspectiveRenderingProperty)
else if (property == geoPositionProperty)
{
diagramConfiguration.drawInPerspective
= properties->mBool()->value(perspectiveRenderingProperty);
diagramConfiguration.geoPosition = QVector2D(
float(properties->mPointF()->value(geoPositionProperty).x()),
float(properties->mPointF()->value(geoPositionProperty).y()));
updateVerticalProfiles();
emitActorChangedSignal();
}
else if (property == perspectiveRenderingProperty)
{
diagramConfiguration.drawInPerspective
= properties->mBool()->value(perspectiveRenderingProperty);
emitActorChangedSignal();
}
else if (property == drawDryAdiabatesProperty)
......@@ -944,13 +949,13 @@ void MSkewTActor::onQtPropertyChanged(QtProperty *property)
continue;
}
if (property == var->property
|| property == var->variable->colorProperty
|| property == var->variable->thicknessProperty)
|| property == var->variable->profileColourProperty
|| property == var->variable->lineThicknessProperty)
{
var->variable = dynamic_cast<MNWPSkewTActorVariable*>(
variables.at(var->index - 1));
var->color = var->variable->color;
var->thickness = var->variable->thickness;
var->color = var->variable->profileColour;
var->thickness = var->variable->lineThickness;
emitActorChangedSignal();
return;
}
......@@ -1532,8 +1537,8 @@ void MSkewTActor::drawDiagram(MSceneViewGLWidget *sceneView,
skewTShader->setUniformValue("drawHumidity" , false);
skewTShader->setUniformValue("drawTemperature", true);
}
skewTShader->setUniformValue("colour", var->color);
glLineWidth(float(var->thickness));
skewTShader->setUniformValue("colour", var->profileColour);
glLineWidth(float(var->lineThickness));
config->layer -= 0.001f;
skewTShader->setUniformValue("layer",
config->layer);
......@@ -1591,7 +1596,7 @@ void MSkewTActor::drawDiagram(MSceneViewGLWidget *sceneView,
"numberOfLevels", grid->getNumLevels());
skewTShader->setUniformValue(
"numberOfLats" , grid->getNumLats());
glLineWidth(float(var->thickness));
glLineWidth(float(var->lineThickness));
if (var->transferFunction != nullptr)
{
......@@ -1615,7 +1620,7 @@ void MSkewTActor::drawDiagram(MSceneViewGLWidget *sceneView,
"useTransferFunction", true);
skewTShader->setUniformValue("scalarMinimum", 0.f);
skewTShader->setUniformValue("scalarMaximum", 0.f);
skewTShader->setUniformValue("colour", var->color);
skewTShader->setUniformValue("colour", var->profileColour);
}
// To avoid z fighting first render all spaghetti contours
// into the stencil buffer and updating the depth buffer
......@@ -1720,6 +1725,35 @@ void MSkewTActor::drawDiagram(MSceneViewGLWidget *sceneView,
}
void MSkewTActor::drawDiagram2(
MSceneViewGLWidget *sceneView,
GL::MVertexBuffer *vbDiagramVertices,
MSkewTActor::ModeSpecificDiagramConfiguration *config)
{
skewTShader->bindProgram("DiagramData");
setShaderGeneralVars(sceneView, config);
skewTShader->setUniformValue("tlogp2xyMatrix", transformationMatrixTlogp2xy);
for (MNWPActorVariable* avar : variables)
{
MNWPSkewTActorVariable* var =
static_cast<MNWPSkewTActorVariable*> (avar);
if ( !var->hasData() ) continue;
var->profileVertexBuffer->attachToVertexAttribute(
SHADER_VERTEX_ATTRIBUTE, 2,
GL_FALSE, 0, (const GLvoid *)(0 * sizeof(float)));
skewTShader->setUniformValue("colour", var->profileColour);
glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
glLineWidth(float(var->lineThickness));
glDrawArrays(GL_LINE_STRIP, 0, var->profile.getScalarPressureData().size());
}
}
void MSkewTActor::drawProbabilityTube(
MNWPSkewTActorVariable *max, MNWPSkewTActorVariable *min, bool isHumidity,
QColor color)
......@@ -2729,7 +2763,7 @@ void MSkewTActor::drawDiagramFullScreen(MSceneViewGLWidget* sceneView)
glClear(GL_DEPTH_BUFFER_BIT);
fullscreenDiagrammConfiguration.layer = -0.005f;
drawDiagramGeometryAndLabelsFullScreen(sceneView);
drawDiagram(sceneView, vbDiagramVerticesFS, &fullscreenDiagrammConfiguration);
drawDiagram2(sceneView, vbDiagramVerticesFS, &fullscreenDiagrammConfiguration);
}
......@@ -2787,4 +2821,18 @@ QVector2D MSkewTActor::transformTp2xy(QVector2D tpCoordinate_K_hPa)
}
void MSkewTActor::updateVerticalProfiles()
{
// Tell all actor variables to update their vertical profile data to the
// current geographical location.
for (MNWPActorVariable* avar : variables)
{
MNWPSkewTActorVariable* var =
static_cast<MNWPSkewTActorVariable*> (avar);
var->updateProfile(diagramConfiguration.geoPosition);
}
}
} // namespace Met3D
......@@ -438,6 +438,10 @@ private:
GL::MVertexBuffer *vbDiagramVertices,
ModeSpecificDiagramConfiguration *config);
void drawDiagram2(MSceneViewGLWidget* sceneView,
GL::MVertexBuffer *vbDiagramVertices,
ModeSpecificDiagramConfiguration *config);
void loadObservationalDataFromUWyoming(int stationNum);
void loadListOfAvailableObservationsFromUWyoming();
......@@ -475,6 +479,12 @@ private:
@ref computeTlogp2xyTransformationMatrix().
*/
QVector2D transformTp2xy(QVector2D tpCoordinate_K_hPa);
/**
Updates (recomputes) the vertical profiles of the actor variables, e.g.
after the position of the diagram handle has been changed.
*/
void updateVerticalProfiles();
};
......
/******************************************************************************
**
** This file is part of Met.3D -- a research environment for the
** three-dimensional visual exploration of numerical ensemble weather
** prediction data.
**
** Copyright 2019 Marc Rautenhaus
**
** Regional Computing Center, Visualization
** Universitaet Hamburg, Hamburg, Germany
**
** Met.3D is free software: you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation, either version 3 of the License, or
** (at your option) any later version.
**
** Met.3D is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
** GNU General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with Met.3D. If not, see <http://www.gnu.org/licenses/>.
**
*******************************************************************************/
#include "verticalprofile.h"
// standard library imports
// related third party imports
#include <log4cplus/loggingmacros.h>
// local application imports
#include "gxfw/mglresourcesmanager.h"
#include "gxfw/gl/typedvertexbuffer.h"
namespace Met3D
{
/******************************************************************************
*** CONSTRUCTOR / DESTRUCTOR ***
*******************************************************************************/
MVerticalProfile::MVerticalProfile()
: MAbstractDataItem()
{
}
MVerticalProfile::~MVerticalProfile()
{
// Make sure the corresponding data is removed from GPU memory as well.
MGLResourcesManager::getInstance()->releaseAllGPUItemReferences(getID());
}
/******************************************************************************
*** PUBLIC METHODS ***
*******************************************************************************/
unsigned int MVerticalProfile::getMemorySize_kb()
{
return (profileData.size() * sizeof(QVector2D));
}
GL::MVertexBuffer *MVerticalProfile::getVertexBuffer(
QGLWidget *currentGLContext)
{
MGLResourcesManager *glRM = MGLResourcesManager::getInstance();
// Check if a vertex buffer already exists in GPU memory.
GL::MVertexBuffer *vb = static_cast<GL::MVertexBuffer*>(
glRM->getGPUItem(getID()));
if (vb) return vb;
// No vertex buffer exists. Create a new one.
GL::MVector2DVertexBuffer *newVB = new GL::MVector2DVertexBuffer(
getID(), profileData.size());
if (glRM->tryStoreGPUItem(newVB))
{
newVB->upload(profileData, currentGLContext);
}
else
{
delete newVB;
}
return static_cast<GL::MVertexBuffer*>(glRM->getGPUItem(getID()));
}
void MVerticalProfile::releaseVertexBuffer()
{
MGLResourcesManager::getInstance()->releaseGPUItem(getID());
}
void MVerticalProfile::updateData(
QVector2D lonLatLocation, QVector<QVector2D> &profile)
{
// Update CPU-side memory.
this->lonLatLocation = lonLatLocation;
this->profileData = profile;
// If a vertex buffer exists, update that as well.
MGLResourcesManager* glRM = MGLResourcesManager::getInstance();
GL::MVertexBuffer* vb = static_cast<GL::MVertexBuffer*>(
glRM->getGPUItem(getID()));
if (vb)
{
GL::MVector2DVertexBuffer* vb2D =
dynamic_cast<GL::MVector2DVertexBuffer*>(vb);
// Reallocate buffer if size has changed.
vb2D->reallocate(nullptr, profile.size(), 0, false);
vb2D->update(profile, 0, 0);
}
}
} // namespace Met3D
/******************************************************************************
**
** This file is part of Met.3D -- a research environment for the
** three-dimensional visual exploration of numerical ensemble weather
** prediction data.
**
** Copyright 2019 Marc Rautenhaus
**
** Regional Computing Center, Visualization
** Universitaet Hamburg, Hamburg, Germany
**
** Met.3D is free software: you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation, either version 3 of the License, or
** (at your option) any later version.
**
** Met.3D is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
** GNU General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with Met.3D. If not, see <http://www.gnu.org/licenses/>.
**
*******************************************************************************/
#ifndef VERTICALPROFILE_H
#define VERTICALPROFILE_H
// standard library imports
// related third party imports
#include <QVector>
#include <QVector2D>
// local application imports
#include "data/abstractdataitem.h"
#include "gxfw/gl/vertexbuffer.h"
namespace Met3D
{
/**
@brief MVerticalProfile ...
*/
class MVerticalProfile : public MAbstractDataItem
{
public:
MVerticalProfile();
~MVerticalProfile();
unsigned int getMemorySize_kb();
const QVector<QVector2D>& getScalarPressureData() { return profileData; }
const QVector2D& getLonLatLocation() { return lonLatLocation; }
/**
Return a vertex buffer object that contains the profile data. The
vertex buffer is created (and data uploaded) on the first call to this
method.
The @p currentGLContext argument is necessary as a GPU upload can switch
the currently active OpenGL context. If this method is called
from a render method, it should switch back to the current render context
(given by @p currentGLContext).
*/
GL::MVertexBuffer *getVertexBuffer(QGLWidget *currentGLContext = 0);
void releaseVertexBuffer();
void updateData(QVector2D lonLatLocation, QVector<QVector2D> &profile);
protected:
private:
QVector<QVector2D> profileData;
QVector2D lonLatLocation;
};
} // namespace Met3D
#endif // VERTICALPROFILE_H
......@@ -79,6 +79,7 @@ uniform float topPressure;
uniform float bottomPressure;
uniform struct Area area; // diagram outline
uniform mat4 mvpMatrix; // model-view-projection
uniform mat4 tlogp2xyMatrix;
uniform vec2 pToWorldZParams; // convert pressure to y axis
uniform vec2 pToWorldZParams2; // convert pressure to y axis
uniform vec4 colour;
......@@ -496,6 +497,21 @@ shader VSDiagramXYtoFullscreen(in vec2 vertex : 0)
}
shader VSTPtoFullscreen(in vec2 vertex : 0)
{
vec4 tlogp = vec4(vertex.x, log(vertex.y), 0, 1);
vec4 vertexDiagramXY = tlogp2xyMatrix * tlogp;
//TODO (mr, 10Jan2019) -- replace by matrix multiplication.
float hPad = 0.1;
float vPad = 0.1;
vec2 vertexClipSpace = vec2(vertexDiagramXY.x * (2.-2.*hPad) - 1.+hPad,
vertexDiagramXY.y * (2.-2.*vPad) - 1.+vPad);
gl_Position = vec4(vertexClipSpace.x, vertexClipSpace.y, layer, 1.);
}
shader VS2DVertexYInPressure(in vec2 vertexCoord : 0, out vec2 worldPos)
{
worldPos.x = vertexCoord.x;
......@@ -989,6 +1005,13 @@ program DiagramVertices
// fs(400)=FSColourWithAreaTest();
};
program DiagramData
{
vs(400)=VSTPtoFullscreen();
fs(400)=FSColour();
};
program MeasurementPoint
{
vs(400)=VSWorld();
......
......@@ -3957,8 +3957,9 @@ bool MNWP3DVolumeActorVariable::setTransferFunctionFromProperty()
MNWPSkewTActorVariable::MNWPSkewTActorVariable(MNWPMultiVarActor *actor)
: MNWPActorVariable(actor),
color(QColor(0, 0, 0, 255)),
thickness(2.)
profileColour(QColor(0, 0, 0, 255)),
lineThickness(2.),
profileVertexBuffer(nullptr)
{
assert(actor != nullptr);
MQtProperties *properties = actor->getQtProperties();
......@@ -3970,17 +3971,27 @@ MNWPSkewTActorVariable::MNWPSkewTActorVariable(MNWPMultiVarActor *actor)
QtProperty* renderGroup = getPropertyGroup("rendering");
assert(renderGroup != nullptr);
colorProperty = actor->addProperty(COLOR_PROPERTY, "colour", renderGroup);
properties->mColor()->setValue(colorProperty, color);
profileColourProperty = actor->addProperty(
COLOR_PROPERTY, "line colour", renderGroup);
properties->mColor()->setValue(profileColourProperty, profileColour);
thicknessProperty = actor->addProperty(DOUBLE_PROPERTY, "line thickness",
renderGroup);
properties->setDouble(thicknessProperty, thickness, 0., 10., 2, 0.1);
lineThicknessProperty = actor->addProperty(
DOUBLE_PROPERTY, "line thickness", renderGroup);
properties->setDouble(lineThicknessProperty, lineThickness, 0., 10., 2, 0.1);
actor->endInitialiseQtProperties();
}
MNWPSkewTActorVariable::~MNWPSkewTActorVariable()
{
if (profileVertexBuffer != nullptr)
{
profile.releaseVertexBuffer();
}
}
/******************************************************************************
*** PUBLIC METHODS ***
*******************************************************************************/
......@@ -3992,14 +4003,14 @@ bool MNWPSkewTActorVariable::onQtPropertyChanged(QtProperty *property)
MQtProperties *properties = actor->getQtProperties();
if (property == colorProperty)
if (property == profileColourProperty)
{
color = properties->mColor()->value(colorProperty);
profileColour = properties->mColor()->value(profileColourProperty);
return true;
}
else if (property == thicknessProperty)
else if (property == lineThicknessProperty)
{
thickness = properties->mDouble()->value(thicknessProperty);
lineThickness = properties->mDouble()->value(lineThicknessProperty);
return true;
}
......@@ -4011,8 +4022,8 @@ void MNWPSkewTActorVariable::saveConfiguration(QSettings *settings)
{
MNWPActorVariable::saveConfiguration(settings);
settings->setValue("colour", color);
settings->setValue("thickness", thickness);
settings->setValue("lineColour", profileColour);
settings->setValue("lineThickness", lineThickness);
}
......@@ -4022,10 +4033,35 @@ void MNWPSkewTActorVariable::loadConfiguration(QSettings *settings)
MQtProperties *properties = actor->getQtProperties();
properties->mColor()->setValue(colorProperty,
settings->value("colour").value<QColor>());
properties->mDouble()->setValue(thicknessProperty,
settings->value("thickness", 2.).toDouble());
properties->mColor()->setValue(
profileColourProperty,
settings->value("lineColour").value<QColor>());
properties->mDouble()->setValue(
lineThicknessProperty,
settings->value("lineThickness", 2.).toDouble());
}
void MNWPSkewTActorVariable::dataFieldChangedEvent()
{
updateProfile(profile.getLonLatLocation());
}
void MNWPSkewTActorVariable::updateProfile(QVector2D lonLatLocation)
{
QVector<QVector2D> profileData;
if (grid != nullptr)
{
profileData = grid->extractVerticalProfile(
lonLatLocation.x(), lonLatLocation.y());
}
profile.updateData(lonLatLocation, profileData);
if (profileVertexBuffer == nullptr)
{
profileVertexBuffer = profile.getVertexBuffer();
}
}
......
......@@ -47,6 +47,7 @@
#include "actors/transferfunction1d.h"
#include "actors/spatial1dtransferfunction.h"
#include "util/mstopwatch.h"
#include "data/verticalprofile.h"
#define MSTOPWATCH_ENABLED
......@@ -780,17 +781,30 @@ class MNWPSkewTActorVariable : public MNWPActorVariable
public:
MNWPSkewTActorVariable(MNWPMultiVarActor *actor);
~MNWPSkewTActorVariable();
bool onQtPropertyChanged(QtProperty *property) override;
void saveConfiguration(QSettings *settings);
void loadConfiguration(QSettings *settings);
QtProperty *colorProperty;
QtProperty *thicknessProperty;
protected:
friend class MSkewTActor;
void dataFieldChangedEvent() override;
/* Rendering properties. **/
QColor profileColour;
QtProperty *profileColourProperty;
double lineThickness;
QtProperty *lineThicknessProperty;
/* Profile data (CPU and vertex buffer). */
MVerticalProfile profile;
GL::MVertexBuffer *profileVertexBuffer;
QColor color;
double thickness;
void updateProfile(QVector2D lonLatLocation);
};
} // namespace Met3D
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment | __label__pos | 0.960404 |
scrapy值图片下载管道以及保存本地 - Icharle | Don't forget your first thoughts
MENU
scrapy值图片下载管道以及保存本地
前言
对于图片下载，在scrapy框架中提供了专门下载的Pipeline，即ImagesPipeline这个是定义好的。但是对于我们来说，他的局限性很大，所以基本上我们需要重写一个Pipeline。怎么局限性？
内置的ImagesPipeline会默认读取Item的image_urls字段，并认为该字段是一个列表形式，它会遍历Item的image_urls字段，然后取出每个URL进行图片下载。而我们业务逻辑往往不是这样。
实现
• setting.py设置图片保存路径
# 图片存储
IMAGES_STORE = './images'
• 自定义Pipeline并且重写ImagesPipeline方法
from scrapy.exceptions import DropItem
from scrapy.pipelines.images import ImagesPipeline
class ImagePipeline(ImagesPipeline):
def file_path(self, request, response=None, info=None):
item = request.meta['item']
url = request.url
file_name = item['imagename'] + '/' + url.split('/')[-1] # imagename为博主定义的 这个可以更改为你在item传入值
return file_name
def get_media_requests(self, item, info):
if item['img']: # 这里假定img为需要下载的图片链接 实际按需更改
yield scrapy.Request(item['img'], meta={'item': item})
else:
return item
def item_completed(self, results, item, info):
image_path = [x['path'] for ok, x in results if ok]
if not image_path:
raise DropItem("Item contains no images")
item['img'] = image_path
return item
• setting.py文件引入ImagePipeline管道
# 引入ImagePipeline管道
ITEM_PIPELINES = {
'xxxxx.pipelines.ImagePipeline': 300, # 300表示优先级，按照自己实际逻辑先后执行顺序
}
说明
• get_media_requests() 它的第一个参数item是爬取生成的Item对象。我们将它的url字段取出来，然后直接生成Request对象。此Request加入到调度队列，等待被调度，执行下载。
• file_path() 它的第一个参数request就是当前下载对应的Request对象。这个方法用来返回保存的文件名，直接将图片链接的最后一部分当作文件名即可。它利用split()函数分割链接并提取最后一部分，返回结果。这样此图片下载之后保存的名称就是该函数返回的文件名。
• item_completed() 它是当单个Item完成下载时的处理方法。因为并不是每张图片都会下载成功，所以我们需要分析下载结果并剔除下载失败的图片。如果某张图片下载失败，那么我们就不需保存此Item到数据库。该方法的第一个参数results就是该Item对应的下载结果，它是一个列表形式，列表每一个元素是一个元组，其中包含了下载成功或失败的信息。这里我们遍历下载结果找出所有成功的下载列表。如果列表为空，那么该Item对应的图片下载失败，随即抛出异常DropItem，该Item忽略。否则返回该Item，说明此Item有效。
项目实战
Python基于Scrapy爬取www.rkpass.cn题目
本文参考：Scrapy框架的使用之Item Pipeline的用法
标签: Python, Scrapy
返回文章列表 文章二维码 打赏
本页链接的二维码
打赏二维码 | __label__pos | 0.624953 |
Start learning with our library of video tutorials taught by experts. Get started
Excel for Mac 2011 Essential Training
Copying cell formats
From:
Excel for Mac 2011 Essential Training
with Curt Frye
Expand all | Collapse all
1. 1m 58s
1. Welcome
1m 16s
2. Using the exercise files
42s
2. 20m 56s
1. Exploring the Excel 2011 window
4m 16s
2. Introducing the Ribbon for Mac
4m 44s
3. Customizing the Ribbon
4m 20s
4. Setting program preferences
3m 20s
5. Getting help in Excel
4m 16s
3. 20m 4s
1. Opening, creating, and saving workbooks
5m 23s
2. Setting workbook properties
4m 14s
3. Creating and modifying workbook templates
4m 18s
4. Managing workbooks across multiple versions of Excel
6m 9s
4. 1h 2m
1. Selecting cells and groups of cells
4m 58s
2. Copying and pasting cell data
2m 39s
3. Entering data using AutoFill and other techniques
4m 32s
4. Inserting symbols and special characters
5m 3s
5. Creating an Excel table
4m 43s
6. Locating and changing data using Find and Replace
4m 57s
7. Restricting input using validation rules
4m 42s
8. Using lists to limit data entered into a cell
2m 32s
9. Sorting worksheet data
3m 2s
10. Creating a custom sort order
3m 54s
11. Filtering worksheet data
4m 6s
12. Inserting, moving, and deleting cells and cell ranges
3m 50s
13. Splitting and freezing rows and columns
3m 51s
14. Managing worksheets
5m 28s
15. Creating, editing, and deleting headers and footers
4m 41s
5. 1h 17m
1. Introducing Excel formulas and functions
3m 17s
2. Adding a formula to a cell
4m 0s
3. Introducing arithmetic operators
4m 13s
4. Using absolute and relative cell references
6m 29s
5. Controlling how Excel copies and pastes formulas
6m 5s
6. Referring to Excel table data in formulas
2m 3s
7. Creating an AutoSum formula
3m 22s
8. Summarizing data on the status bar
2m 22s
9. Joining text in cells with concatenation
3m 59s
10. Summarizing data using an IF function
6m 21s
11. Summarizing data using SUMIF and other conditional functions
5m 41s
12. Creating formulas to count cells
2m 37s
13. Rounding cell values up and down
4m 55s
14. Finding data using VLOOKUP and HLOOKUP
6m 33s
15. Auditing formulas by identifying precedents and dependents
3m 25s
16. Managing Excel formula error indicators
4m 42s
17. Managing scenarios
4m 59s
18. Performing Goal Seek analysis
2m 31s
6. 45m 48s
1. Applying fonts, background colors, and borders
6m 7s
2. Applying number and date formats to cells
7m 1s
3. Managing text alignment
3m 56s
4. Copying cell formats
4m 2s
5. Managing cell styles
3m 16s
6. Managing Office themes
3m 31s
7. Creating rule-based conditional formats
3m 54s
8. Defining Top 10 conditional formats
4m 19s
9. Defining data bar, color scale, and icon set conditional formats
6m 6s
10. Editing, ordering, and deleting conditional formats
3m 36s
7. 36m 55s
1. Creating bar and column charts
5m 26s
2. Creating pie charts
2m 32s
3. Creating line charts
4m 34s
4. Creating XY (scatter) charts
1m 49s
5. Creating stock charts
4m 11s
6. Changing chart types and layouts
2m 22s
7. Changing the appearance of a chart
4m 25s
8. Managing chart axes and numbering
2m 51s
9. Adding trendlines to charts
4m 14s
10. Creating sparkline charts
4m 31s
8. 18m 39s
1. Importing data from comma separated value (CSV) or text files
4m 20s
2. Connecting to an external data source
2m 22s
3. Using hyperlinks
6m 1s
4. Including an Excel workbook in another Office document
3m 5s
5. Linking to an Excel chart from another Office program
2m 51s
9. 26m 21s
1. Creating and formatting shapes
3m 10s
2. Adding and adjusting images
5m 38s
3. Cropping, compressing, and removing image backgrounds
4m 46s
4. Creating SmartArt graphics
5m 7s
5. Creating WordArt
2m 34s
6. Aligning and layering objects
5m 6s
10. 29m 51s
1. Introducing PivotTable reports
3m 47s
2. Creating a PivotTable report
4m 37s
3. Pivoting a PivotTable report
3m 18s
4. Managing subtotals and grand totals
3m 23s
5. Summarizing more than one data field
1m 34s
6. Changing the data field summary operation
2m 40s
7. Changing the data field number format
2m 27s
8. Filtering a PivotTable report
2m 46s
9. Applying a PivotTable style
2m 20s
10. Creating and editing styles
2m 59s
11. 26m 47s
1. Checking spelling
3m 32s
2. Setting AutoCorrect and automatic Replace options
3m 59s
3. Managing workbook comments
3m 40s
4. Tracking and reviewing changes
5m 12s
5. Printing a worksheet or workbook
3m 44s
6. Setting and removing print areas
2m 31s
7. Exporting to other formats
1m 33s
8. Protecting a workbook
2m 36s
12. 23m 52s
1. Running an existing macro
4m 56s
2. Recording a macro
3m 56s
3. Recording a macro using relative references
6m 15s
4. Renaming, viewing, and deleting macros
2m 58s
5. Adding comments to a macro
2m 43s
6. Turning off screen updating in a macro
3m 4s
13. 1m 1s
1. Additional resources
1m 1s
Video: Copying cell formats
Cutting and pasting data among the cells is easy. You just click a cell, copy it, and then paste its contents - formatting and all - into another cell. In this movie, I'll show you a few different ways to copy formatting from one cell to another. The most straightforward, and frankly easiest way to copy formatting from one cell to another is to use the Format Painter. The Format Painter is activated by clicking the Format Painter button, which looks like a paintbrush here on the toolbar. If you click a cell that contains the formatting you want to copy and then click the Format Painter button and then click the cell to which you want to copy that formatting.
Watch this entire course now—plus get access to every course in the library. Each course includes high-quality videos taught by expert instructors.
Become a member
Please wait...
Excel for Mac 2011 Essential Training
6h 32m Beginner Oct 26, 2010
Viewed by members. in countries. members currently watching.
In Excel for Mac 2011 Essential Training, author Curt Frye gives a comprehensive overview of Excel, the full-featured spreadsheet software from Microsoft. The course covers key skills such as manipulating workbook and cell data, using functions, automating actions, printing worksheets, and collaborating with others. Exercise files accompany the course.
Topics include:
• Customizing the Ribbon
• Formatting worksheets, cells, and cell data
• Sorting and filtering data
• Working with formulas
• Detecting formula errors
• Creating charts
• Importing data
• Inserting objects and graphics
• Using PivotTables
• Recording macros
• Sharing workbooks
Subjects:
Business Spreadsheets
Software:
Excel Excel for Mac Office for Mac
Author:
Curt Frye
Copying cell formats
Cutting and pasting data among the cells is easy. You just click a cell, copy it, and then paste its contents - formatting and all - into another cell. In this movie, I'll show you a few different ways to copy formatting from one cell to another. The most straightforward, and frankly easiest way to copy formatting from one cell to another is to use the Format Painter. The Format Painter is activated by clicking the Format Painter button, which looks like a paintbrush here on the toolbar. If you click a cell that contains the formatting you want to copy and then click the Format Painter button and then click the cell to which you want to copy that formatting.
So you'll notice, my mouse pointer is now in the shape of a thick white cross and a paintbrush. When I click cell E1, Excel applies the formatting that I copied from here, and it also returns my mouse pointer to its original state. Before, it had the paintbrush icon, and now, it's back to its normal white cross. So I can select cells without copying the formatting over. Now let's say that I want to copy the formatting from one cell to a few other cells, and I don't want to keep going back and forth to the Format Painter button.
To do that, I can click the cell that contains the formatting I want to copy - in this case, it's just boldfaced - and then double-click the Format Painter button. I know it's a little counterintuitive to double-click a button on the toolbar, but this is the way that it's built into Excel. So, I will double-click the Format Painter button, and now I can go down to another cell. You'll see that my mouse pointer has a thick white cross with a paintbrush. Click once, and when I move it away, Excel doesn't release it from that mode. In other words, it doesn't do it once; it'll do it until I tell it to stop.
So, I will copy the formatting here, and now, because I'm done, I will press the Escape key, and when I do and move the mouse pointer over a new cell, it changes into my regular selection pointer, and I can use it normally without copying and pasting formatting. Another way to copy a format from one cell to another is to use the fill handle. So, let's say here that I want to copy the italic formatting from the cell A3, which has January, all the way down to A14, which has December. So, to do that, I click cell A3, which has the formatting I want to apply elsewhere, hover the mouse pointer over the fill handle - that's at the bottom-right corner - and you'll notice my mouse pointer changed to a four-way black cross, and now I can drag the fill handle down.
Now, when I do, Excel extends the series: January, February, March and so on, but you'll notice that it also applies the format. If all I wanted to do was apply the format, I can click the Auto Fill Options button here and click Fill Formatting Only. When I do that, Excel would restore the original values and apply only the formatting. To give you another example, I'll do it here in column B. So, I'll press Command+I to apply italics formatting, grab the fill handle, drag it down, and when I do, you see that Excel applied the formatting, and it copied the number.
If I want the formatting without replacing the numbers that were already there, click the Auto Fill Options button, click Fill Formatting Only, and Excel restores the original data. One last bit of format copying that I'll show you is how to copy a cell with borders without borders. In other words you keep all the formatting, all the values; the only thing that you get rid of is a border. So, let's look at cell A15 here, which has Total, and it also has a border - I'll click here so you can see it more clearly - all the way around it. So, if I click that cell, press Ctrl+ C to copy it, and then click this cell, which will be my destination cell, now, on the Home tab, I can click the Paste button's down arrow which is here to the right, and I can select the Without Borders option.
When I do, Excel pastes that cell's values and formatting. It just excludes any borders that happen to be applied. Copying formatting from one cell to another means you don't have to recall every change you made, or reapply the changes if you do. If you remember just one thing from this movie, please remember the Format Painter toolbar button and how you can use it to copy formatting from one cell to another.
Find answers to the most frequently asked questions about Excel for Mac 2011 Essential Training.
Expand all | Collapse all
Please wait...
Q: Where can I learn more about Excel formulas?
A: Discover more on this topic by visiting Excel formulas on lynda.com.
Share a link to this course
Please wait... Please wait...
Upgrade to get access to exercise files.
Exercise files video
How to use exercise files.
Learn by watching, listening, and doing, Exercise files are the same files the author uses in the course, so you can download them and follow along Premium memberships include access to all exercise files in the library.
Upgrade now
Exercise files
Exercise files video
How to use exercise files.
For additional information on downloading and using exercise files, watch our instructional video or read the instructions in the FAQ.
This course includes free exercise files, so you can practice while you watch the course. To access all the exercise files in our library, become a Premium Member.
Upgrade now
Are you sure you want to mark all the videos in this course as unwatched?
This will not affect your course history, your reports, or your certificates of completion for this course.
Mark all as unwatched Cancel
Congratulations
You have completed Excel for Mac 2011 Essential Training.
Return to your organization's learning portal to continue training, or close this page.
OK
Become a member to add this course to a playlist
Join today and get unlimited access to the entire library of video courses—and create as many playlists as you like.
Get started
Already a member?
Become a member to like this course.
Join today and get unlimited access to the entire library of video courses.
Get started
Already a member?
Exercise files
Learn by watching, listening, and doing! Exercise files are the same files the author uses in the course, so you can download them and follow along. Exercise files are available with all Premium memberships. Learn more
Get started
Already a Premium member?
Exercise files video
How to use exercise files.
Ask a question
Thanks for contacting us.
You’ll hear from our Customer Service team within 24 hours.
Please enter the text shown below:
The classic layout automatically defaults to the latest Flash Player.
To choose a different player, go to the site preferences section of the my account menu.
Continue to classic layout Stay on new layout
Welcome to the redesigned course page.
We’ve moved some things around, and now you can
Exercise files
Access exercise files from a button right under the course name.
Mark videos as unwatched
Remove icons showing you already watched videos if you want to start over.
Control your viewing experience
Make the video wide, narrow, full-screen, or pop the player out of the page into its own window.
Interactive transcripts
Click on text in the transcript to jump to that spot in the video. As the video plays, the relevant spot in the transcript will be highlighted.
Thanks for signing up.
We’ll send you a confirmation email shortly.
Sign up and receive emails about lynda.com and our online training library:
Here’s our privacy policy with more details about how we handle your information.
Keep up with news, tips, and latest courses with emails from lynda.com.
Sign up and receive emails about lynda.com and our online training library:
Here’s our privacy policy with more details about how we handle your information.
submit Lightbox submit clicked | __label__pos | 0.880851 |
Genius Playlist: More than 25?!?
Discussion in 'iPod' started by MBX, Sep 19, 2009.
1. MBX macrumors 68000
Joined:
Sep 14, 2006
#1
Hi
When creating a Genius Playlist on the iPhone it only creates a playlist of 25 songs. Is there a way to extend that list so it retrieves the list continuously without a 25 song limit or having to hit "refresh"?
2. ProteusFinnerty macrumors newbie
Joined:
Nov 11, 2007
#2
Step 1: Create a Genius Playlist (or open the existing one.)
Step 2: Look above Track #1. Look below the track progress box. Look in the right of this area. The answer should present itself.
Proteus.
3. spillproof macrumors 68020
spillproof
Joined:
Jun 4, 2009
Location:
USA
#3
huh? :confused:
4. Mew2468 macrumors regular
Joined:
Apr 11, 2009
Location:
Home of the 2010 Winter Games
#4
I know you can change the limit of a genius playlist from your computer; not so sure you can right from the iDevice. Try making the playlist on your computer and then sync it over.
Share This Page | __label__pos | 0.942506 |
Building a Basic Video Search App with Vimeo’s API and Slim
In this tutorial, you’ll get to know the basics of the Vimeo API. With it, you can fetch information on a specific user or get information on the videos uploaded by the user. If the video is private, you can only get it from the API if the user has given permission to your app.
Vimeo Logo
Creating a New App
The first thing you’re going to need is a Vimeo account. Once you have one, go to developer.vimeo.com and click on My Apps. This will list out all the apps that you’ve created. Since it’s your first time, it should be empty. Click the create a new app button to start creating a new app. Enter the name, description, URL and callback URL of the app. For the URL and callback URL you can enter a URL on your development machine (like http://homestead.app).
vimeo new app
Click on the create app button once you’re done adding the details. You will be redirected to the app page where you can click the ‘authentication’ tab to reveal the tokens which you can use to interact with the API. We’ll need those later.
API Playground
Before you move on to coding a demo app, take a look at the API Playground. This is a tool provided by Vimeo so developers can play around with the API without having to code anything. It allows you to make calls to specific API endpoints, set custom values for the parameters that can be passed through those endpoints and see the actual result which is a JSON string.
Check the ‘Authenticate this call as {your user name}’ checkbox so that all API calls are performed on behalf of your Vimeo account. If you do not check this box, the API calls will be performed as an unauthenticated request. This means that it won’t be using your app credentials, nor a specific user to perform requests to the API. In effect, it’s then limited to only accessing publicly available information.
Going back to the API Playground, select the application which you’ve created earlier. You can click the make call button to perform the request. The default URL used in the playground is https://api.vimeo.com/ which just lists out all the endpoints which are available from the API. To change this, you can click on the (Empty…) link on the left side of the screen. From there, you can select the endpoint to which you want to send a request. You can try the users endpoint for starters. Once selected, it allows you to input the ID of a specific user and search for users by specifying a set of parameters.
api playground users
In the example above, you’re searching for a user named ‘ash ketchum’. You do this by specifying a value for the query parameter. You can also see which parameters are required and which ones are optional. The parameters that you can specify are pretty self-explanatory. Go ahead and play with different values to familiarize yourself with the API calls that you can make.
If you examine the results, it returns 25 rows per page by default. It also shows the total number of rows that the query returns. In this case, it’s 16. This is evident on the paging data as well: next has a value null so this means there’s no next page.
vimeo user
From the response above, all the user data is inside the data array. Each user is an object with the same set of properties in them. If you want to get more detailed information about a specific user, you can extract its ID from the value of the uri. In this case it’s /users/3151551 so the ID is 3151551. You can copy that and use it as a value for the {user_id} under the users endpoint to query that specific user.
"data": [
{
"uri": "/users/3151551",
"name": "ash ketchum",
"link": "https://vimeo.com/user3151551",
...
Do note that some endpoints require an authenticated user to perform the request. This means that you have to check the Authenticate this call as {your user name} checkbox to perform the request. An example of such an endpoint is the me endpoint. This specific endpoint allows your app to query data regarding the currently authenticated user.
Creating the Demo
Prerequisites
From this point forward, we’ll assume you’re using our Homestead Improved Vagrant box to follow along. It’s a virtual development environment tuned for common PHP applications, so that every reader has the same starting point.
For the demo, you will be using the Slim framework, Twig templating engine and the Vimeo PHP library. Let’s install them:
composer require slim/slim twig/twig slim/views vimeo/vimeo-api
Bootstrapping
In your working directory, create an index.php file, start the session, and include Composer’s autoloader:
<?php
session_start();
require_once 'vendor/autoload.php';
Define a constant for the client ID, client secret and redirect URI used by your app. Make sure the redirect URI which you have added in the details of your app matches the URL that you use in here.
define('CLIENT_ID', 'your vimeo client id');
define('CLIENT_SECRET', 'your vimeo client secret');
define('REDIRECT_URI', 'your vimeo redirect or callback url');
Create a new instance of the Slim app and pass in Twig for the view option. This allows you to use Twig for handling views. Also, set the parser options for the view.
$app = new \Slim\Slim(array(
'view' => new \Slim\Views\Twig() //use twig for handling views
));
$view = $app->view();
$view->parserOptions = array(
'debug' => true, //enable error reporting in the view
'cache' => dirname(__FILE__) . '/cache' //set directory for caching views
);
Add the following to use the Vimeo library.
$vimeo = new \Vimeo\Vimeo(CLIENT_ID, CLIENT_SECRET);
Getting Unauthenticated Tokens
You can perform requests to the Vimeo API without having the user logged in and give permission to your app. You can do that by acquiring unauthenticated tokens using the clientCredentials method in the Vimeo library. This returns an access token which can be used for querying public data. The number of API endpoints which you can use with an unauthenticated token is fairly limited so you won’t be using it in this tutorial.
$app->get('/token', function() use ($app, $vimeo) {
$token = $vimeo->clientCredentials();
echo $token['body']['access_token'];
});
Logging In
Here’s the login route. This allows the user to give permission to your app so that the app can access the user’s private data and perform requests on behalf of the user.
$app->get('/login', function () use ($app, $vimeo) {
if($app->request->get('code') && $app->request->get('state') == $_SESSION['state']){
$code = $app->request->get('code');
$token = $vimeo->accessToken($code, REDIRECT_URI);
$access_token = $token['body']['access_token'];
$vimeo->setToken($access_token);
$_SESSION['user.access_token'] = $access_token;
$page_data = array(
'user' => $token['body']['user']
);
}else{
$scopes = array('public', 'private');
$state = substr(str_shuffle(md5(time())), 0, 10);
$_SESSION['state'] = $state;
$url = $vimeo->buildAuthorizationEndpoint(REDIRECT_URI, $scopes, $state);
$page_data = array(
'url' => $url
);
}
$app->render('login.php', $page_data);
});
Breaking it down, you first check if the code and the state are passed along as query parameters. For added security, you also check if the state is the same as the state that was previously saved in the session.
if($app->request->get('code') && $app->request->get('state') == $_SESSION['state']){
...
}
If the condition above returns true for both, proceed with exchanging the code and the redirect URI for the access token. You can do that by calling the accessToken method in the Vimeo library. Next, extract the access token from the result that was returned and then call the setToken method to set it as the access token. Also store the access token in the session so you can access it later. Lastly, create an array that stores the data which you will pass to the view later on. In this case, it’s the user details.
$code = $app->request->get('code');
$token = $vimeo->accessToken($code, REDIRECT_URI);
$access_token = $token['body']['access_token'];
$vimeo->setToken($access_token);
$_SESSION['user.access_token'] = $access_token;
$page_data = array(
'user' => $token['body']['user']
);
If the condition returns false, construct the URL that will lead the user to the Vimeo page where they can give permission to the app to do specific tasks. In this case, you’re only specifying public and private for the scopes. This means that the app can only have access to public and private user data. There are also others such as upload which allows the app to upload videos to Vimeo, or the interact permission which allows the app to interact with a video on behalf of the user. Examples of such interactions includes liking, commenting or adding the video to the watch list.
Going back to the code, create the state whose primary purpose is to add a security layer on redirects. As you have seen earlier, this is used to check if the same state is present on the query parameters that is passed along in the redirect from Vimeo to the redirect URL that you specified. Just pass this URL as the data for the page.
$scopes = array('public', 'private');
$state = substr(str_shuffle(md5(time())), 0, 10);
$_SESSION['state'] = $state;
$url = $vimeo->buildAuthorizationEndpoint(REDIRECT_URI, $scopes, $state);
$page_data = array(
'url' => $url
);
Finally, render the login view.
$app->render('login.php', $page_data);
Here’s the login view (templates/login.php):
{% if url %}
<a href="{{ url }}">login to vimeo</a>
{% else %}
<h1>Hello {{ user.name }}!</h1>
<h2>websites</h2>
<ul>
{% for website in user.websites %}
<li>
<a href="{{ website.link }}">{{ website.name }}</a>
</li>
{% endfor %}
</ul>
{% endif %}
From the above code, you can see that we’re just checking if the URL exists. If so, then output the authorization link. If it doesn’t, then greet the user and list their websites. When the authorization link is clicked by the user, they will be redirected to a Vimeo page where they can check what specific scopes they wish to allow. After clicking on ‘allow’, the user will be redirected to the redirect URL that you specified. The unique code and state will be passed as a query parameter in that redirect URL which you can then exchange for an access token.
vimeo auth
Getting the User Feed
You can get the user feed by making a request to the /me/feed endpoint. You can also pass in an optional parameter named per_page. This allows you to control the number of rows returned in the response. If this parameter is not specified, it uses the default one which is 25. After that, extract the body of the response and set it as the data to be passed to the view.
$app->get('/me/feed', function () use ($app, $vimeo) {
$vimeo->setToken($_SESSION['user.access_token']);
$response = $vimeo->request('/me/feed', array('per_page' => 10));
$page_data = $response['body'];
$app->render('feed.php', $page_data);
});
Here’s the code for feed.php. What it does is loop through all the feed items and then shows a thumbnail image which represents the video, the link to the actual video on Vimeo, the description and the tags attached to that video.
<h1>User Feed</h1>
{% for feed in data %}
<li>
<img src="{{ feed.clip.pictures.sizes[0]['link'] }}" alt="{{ feed.clip.name }}">
<div>
<a href="{{ feed.clip.link }}">{{ feed.clip.name }}</a>
</div>
<p>
{{ feed.clip.description }}
</p>
<div>
{% for tag in feed.clip.tags %}
<span>{{ tag.name }}</span>
{% endfor %}
</div>
</li>
{% endfor %}
Searching for Videos
The Vimeo API also allows you to search for videos by using a query. In the code below, initialize the page data to an empty array. If a query is present as a query parameter in the request URL, use it as the query for the /videos endpoint. You then pass this query along with the API results as the data for the videos.php view.
$app->get('/videos', function () use ($app, $vimeo) {
$page_data = array();
if($app->request->get('query')){
$vimeo->setToken($_SESSION['user.access_token']);
$query = $app->request->get('query');
$response = $vimeo->request('/videos', array('query' => $query));
$page_data = array(
'query' => $query,
'results' => $response['body']
);
}
$app->render('videos.php', $page_data);
});
For videos.php, create a form that has the text field that the user can use to enter their query, and a button for submitting the query.
<form>
<input type="text" name="query" value="{{ query }}">
<button type="submit">Search</button>
</form>
After that, output the search results. If there is a value in the results item in the page data that was passed in earlier, loop through it and show the thumbnail for the video. This is usually the first image in the array of pictures that the API returns. So accessing the image at index 0 and extracting its link allows you to get the first item. Next, output the link to the video, using the name of the video as the text. Finally output a link to the user who uploaded the video and show the video description. If the results variable isn’t available, then simply output that there are no results.
<h1>Search Results</h1>
<div>
{% if results %}
<ul>
{% for row in results.data %}
<li>
<img src="{{ row.pictures.sizes[0]['link'] }}" alt="{{ row.name }}">
<div>
<a href="{{ row.link }}">{{ row.name }}</a>
</div>
<div>
by: <a href="{{ row.user.link }}">{{ row.user.name }}</a>
</div>
<p>
{{ row.description }}
</p>
</li>
{% endfor %}
</ul>
{% else %}
No search results.
{% endif %}
</div>
Conclusion
In this part, we used the Vimeo API to build a rudimentary video application with Silex and Twig. We added login and user feed functionality and wrapped it all up with a video searching feature. You can check out the code used in this article in this Github repo.
If your interest is piqued, consider joining us in the followup post which will expand upon the basics presented here and add in likes, watchlists, and video uploads. Stay tuned! | __label__pos | 0.503043 |
Home » Computer Basics
Generations of Computers
In this article, we are going to discuss about the introduction of generations of computers, different generations of the computers and the advantages of the generations.
Submitted by Prerana Jain, on July 19, 2018
Generations of Computers
Over the year various computing devices were invented that enable the people to solve different types of problems. All these computing devices can be classified into several generations. These generations refer to the phases of improvement made to different computing devices. The history of computers are discussed in terms of different generations of the computer as listed below:
1. First Generation Computer
The first generation computer was employed during the period 1940-1956. These computers used the vacuum tube technology for calculation as well as for storage and control purpose. A vacuum tube is made up of glass and contains filament inside it. The input and output medium for the first-generation computer was the punched card and printout respectively.
Advantages of First Generation Computers:
• These computers were the fastest computing devices of their time.
• These computers were able to execute complex mathematical problems in an efficient manner.
2. Second Generation Computers
The second generation of the computer was employed during the period 1956-1963. The main characteristic of these computers was the use of the transistor in place of vacuum tubes in building the basic logic circuits. The transistors were invented by Shockley, Brattain, and Bardeen in 1947 for which they win the Nobel prize. The transistor is a semiconductor device which is used to increase the power of incoming signals by preserving the shape of the original signal is called transistors. Another major technology development made to this computer was the replacement of the machine language with the assembly language.
Advantages of Second Generation Computers:
• They were the fastest computing devices of their time.
• They were easy to program because of the use of assembly language.
• They required very less power in carrying out their operations.
• They were required to be placed in air-conditioned places.
3. Third Generation of Computer
The third generations of the computer were employed during the period 1964-1975. The major characteristic feature of the third generation computer system was the use of Integrated Circuits (ICs). The ICs technology was also known as microelectronics technology. ICs are the circuits that combine various electronic component such as a transistor, capacitor etc. ICs were superior to vacuum tube and transistors in terms of cost and performance. The cost of the ICs are very low and the performance is very high.
Advantages of Third Generation Computer:
• They were very productive because of their small computational time.
• They were easily transportable from one place to another because of their small size.
• They were more reliable and required less frequent maintenance schedule.
• They could be installed very easily and required less space for their installation.
4. Fourth Generation Computer
The fourth generation computer was employed during 1975-1989. The invention of large-scale Integration (LSI) technology and very large scale integration (VLSI) technology led to the development of the fourth generation of computer. however, these computers still used the IC technology to build the basic circuits. Apart from this technology the fourth generation also includes the following development:
• Development of Graphical User Interface (GUI).
• Development of a new operating system.
• Development of Local Area Network (LAN).
• The invention of various secondary storage and I/o devices.
Advantages of Fourth Generation Computers:
• They were highly reliable and required very less maintenance.
• They provided a user- friendly environment while working because of the development of GUIs and interactive I/O devices.
5. Fifth Generation Computers
The different types of the modern digital computer come under the categories of the fifth generation of computers. The fifth generation of computers is based on the Ultra Large Scale (ULSI) technology that allows almost ten million electronic component to be fabricated on one small chip. Some of the improvement or development made during this generation of the computer are as follow:
• Development of Parallel Processor.
• The invention of optical Disk technology.
• Development of centralized computers called services.
Advantages of Fifth Generation Computers:
• They are the fastest and powerful computer to date.
• They are versatile for communication and resources sharing.
• They are able to execute a large number of applications at the same time and that too at a very high speed.
Comments and Discussions!
Load comments ↻
Copyright © 2024 www.includehelp.com. All rights reserved. | __label__pos | 0.94209 |
[洛谷 3705][SDOI2017]新生舞会
题目链接
https://www.luogu.com.cn/problem/P3705
题解
在二分图上套了个 0/1 分数规划的题。
容易想到二分答案 \(ans\)。接下来这样建图：
• 源点到左部点，右部点到汇点，连一条流量为 \(1\)，费用为 \(0\) 的边。
• 左部点 \(x\) 到右部点 \(y\)，连一条流量为 \(1\)，费用为 \(a_{x,y}-ans \times b_{x,y}\) 的边。
跑最大费用最大流，如果费用大于零则答案应该更大。
#include <cstring>
#include <iostream>
#include <string>
#include <queue>
#define INF 1e12
#define eqs 1e-8
using namespace std;
struct edge
{
int v,next,w;
double c;
}e[50005];
struct node
{
int v,e;
}p[205];
int head[205],vis[205],a[105][105],b[105][105];
double dis[205],minc;
int n,s,t,cnt=1;
void addedge(int u,int v,int w,double c)
{
e[++cnt].v=v;
e[cnt].w=w;
e[cnt].c=c;
e[cnt].next=head[u];
head[u]=cnt;
}
bool spfa()
{
queue<int> q;
for(int i=1;i<=2*n+2;i++)
dis[i]=INF;
dis[s]=0,vis[s]=1;
q.push(s);
while(!q.empty())
{
int u=q.front();
q.pop();
vis[u]=0;
for(int i=head[u];i;i=e[i].next)
if(e[i].w&&dis[u]-e[i].c<dis[e[i].v])
{
dis[e[i].v]=dis[u]-e[i].c;
p[e[i].v].v=u;
p[e[i].v].e=i;
if(!vis[e[i].v])
{
vis[e[i].v]=1;
q.push(e[i].v);
}
}
}
return dis[t]<INF;
}
bool check(double x)
{
s=2*n+1,t=2*n+2;
minc=0,cnt=1;
memset(head,0,sizeof(head));
for(int i=1;i<=n;i++)
{
addedge(s,i,1,0),addedge(i,s,0,0);
addedge(i+n,t,1,0),addedge(t,i+n,0,0);
}
for(int i=1;i<=n;i++)
for(int j=1;j<=n;j++)
{
double c=a[i][j]-x*b[i][j];
addedge(i,j+n,1,c),addedge(j+n,i,0,-c);
}
while(spfa())
{
int minw=INF;
for(int i=t;i!=s;i=p[i].v)
minw=min(minw,e[p[i].e].w);
for(int i=t;i!=s;i=p[i].v)
{
e[p[i].e].w-=minw;
e[p[i].e^1].w+=minw;
}
minc-=minw*dis[t];
}
return minc>=0;
}
int main()
{
scanf("%d",&n);
for(int i=1;i<=n;i++)
for(int j=1;j<=n;j++)
scanf("%d",&a[i][j]);
for(int i=1;i<=n;i++)
for(int j=1;j<=n;j++)
scanf("%d",&b[i][j]);
double l=0,r=1e8;
while(r-l>=eqs)
{
double mid=(l+r)/2;
if(check(mid))l=mid;
else r=mid;
}
printf("%.6lf\n",l);
return 0;
}
发表评论
邮箱地址不会被公开。 必填项已用*标注
此站点使用Akismet来减少垃圾评论。了解我们如何处理您的评论数据 | __label__pos | 0.997179 |
TEMA
Compilation Error, o que pode ser?
Rodrigo preguntado 1 year ago
Não sei o que pode ser, se alguem souber me da um help. resumindo, as constantes representam o valor maximo de cada taxa, eu subtraio elas do salario para calcular conforme sua propria regra, usando as funcoes.
using System;
using System.Globalization;
class URI
{
static void Main(string[] args)
{
const double VALOR_ISENTO = 2000.00;
const double VALOR_MAXIMO8 = 1000.00;
const double VALOR_MAXIMO18 = 1500.00;
bool isentoImposto = false;
double imposto = 00.00;
double salario = double.Parse(Console.ReadLine(), CultureInfo.InvariantCulture);
if (salario > 00.00 && salario <= 2000.00)
{
isentoImposto = true;
}
else if (salario <= 3000.00)
{
CalculaImposto8();
}
else if (salario <= 4500.00)
{
CalculaImposto18();
}
else
{
CalculaImposto28();
}
if (isentoImposto == true)
{
Console.WriteLine("Isento");
}
else
{
Console.WriteLine("R$ " + imposto.ToString("F2", CultureInfo.InvariantCulture));
}
void CalculaImposto8()
{
salario -= VALOR_ISENTO;
imposto = salario * 0.08;
}
void CalculaImposto18()
{
salario -= VALOR_ISENTO + VALOR_MAXIMO8;
imposto = VALOR_MAXIMO8 * 0.08;
imposto += salario * 0.18;
}
void CalculaImposto28()
{
salario -= VALOR_ISENTO + VALOR_MAXIMO8 + VALOR_MAXIMO18;
imposto += VALOR_MAXIMO8 * 0.08;
imposto += VALOR_MAXIMO18 * 0.18;
imposto += salario * 0.28;
}
}
}
Recuerda no enviar soluciones. Tu mensaje puede ser revisado por nuestros moderadores.
• Mister Cat respondido 1 year ago
Hola amigo! como você quebrei a cabeça durante horas, eu não saberia te dizer exactamente onde esta o problema mas se o meu codigo te ajuda seja bem vindo, eu fiz isso e deu certo, a mim estaba dando 5% worng. ai simplifiquei o maximo possivel e deu certo;
if(sal <= 2000.0)
{
Console.WriteLine("Isento");
}else if( 2000.0 < sal && sal <= 3000.0)
{
t8 = ((sal - 2000.00) * 0.08);
Console.WriteLine("R$ " + String.Format("{0:F2}", t8));
} else if (3000.0 < sal && sal <= 4500.0)
{
t18 = ((sal - 3000.00) * 0.18 + 1000.00 * 0.08);
Console.WriteLine("R$ " + String.Format("{0:F2}", t18));
}
else
{
t28 = ((sal - 4500.00) * 0.28 + 1500.00 * 0.18 + 1000.00 * 0.08);
Console.WriteLine("R$ " + String.Format("{0:F2}", t28));
}
Console.ReadLine(); | __label__pos | 0.999376 |
• Tue. Dec 5th, 2023
**How to Connect to a WiFi Router**
Alejandra Reynoso
ByAlejandra Reynoso
Oct 5, 2023
In the digital age, staying connected is more than a convenience; it’s a necessity. Whether you’re working from home, streaming your favorite shows, or simply browsing the internet, a reliable WiFi connection is crucial. This article provides a detailed, step-by-step guide on how to connect to a WiFi router.
Table of Contents
1. Understanding WiFi and WiFi Routers
2. Steps to Connect to a WiFi Router
3. Troubleshooting WiFi Connection Issues
4. Frequently Asked Questions
Key Takeaways:
– Understanding your WiFi router and its settings can greatly improve your internet experience.
– Connecting to a WiFi router is a straightforward process, but troubleshooting may be needed if issues arise.
– Regularly updating your router’s firmware can enhance security and performance.
Understanding WiFi and WiFi Routers
A WiFi router is a device that takes the data from your internet connection and transforms it into radio signals, which are then picked up by devices with wireless capabilities such as smartphones, tablets, and laptops. There are various types of routers to meet different needs, from basic models for simple web browsing to more advanced ones for high-speed gaming and streaming. To better understand these, you can refer to this comprehensive guide on WiFi routers.
Key Factors When Choosing a WiFi Router
– Speed: Measured in megabits per second (Mbps).
– Range: The distance the WiFi signal can reach.
– Security: The type of encryption used to protect your data.
Steps to Connect to a WiFi Router
Connecting to a WiFi router is a relatively simple process. Here are the steps you can follow:
Step 1: Locate Your WiFi Router
The first step is locating your WiFi router. It’s usually a small box with antennas and multiple ports at the back.
Step 2: Connect Your Device to the WiFi Router
On your device, go to the WiFi settings. You should see a list of available networks. Select your network (the name will be the same as your router’s model or a name you’ve set) and enter the password (usually found at the bottom or back of the router).
Step 3: Confirm Connection
Once you’ve entered the password, click on ‘Connect’. Your device should now be connected to the WiFi router.
For a more detailed guide, check out this WiFi connection tutorial.
If you’re interested in enhancing your WiFi connection, associates99.com has an article on WiFi extenders that might be helpful.
Troubleshooting WiFi Connection Issues
Occasionally, you may encounter problems when trying to connect to your WiFi router. Here are some common issues and their solutions:
1. Can’t See WiFi Network
If your network isn’t showing up in the list of available networks, it could be that the router is not broadcasting the network name. You may need to manually enter the network name and password in your device’s WiFi settings.
2. Incorrect Password
Always double-check your password. Remember, it is case sensitive.
3. Poor Signal
If you’re too far from your router or if there are obstacles (like walls or floors) between your device and the router, your signal might be weak. Consider moving closer to the router or using a WiFi extender.
For more troubleshooting tips, associates99.com offers advice on solving common internet issues.
Frequently Asked Questions
• Q: How can I change my WiFi password?
A: You can change your password by accessing your router’s settings through a web browser. The specific steps vary by router model.
• Q: Why is my WiFi connection slow?
A: Several factors can affect WiFi speed, such as the distance from the router, the number of devices connected, and whether there are any obstructions between your device and the router.
• Q: Can I connect multiple devices to my WiFi router?
A: Yes, you can connect multiple devices to your WiFi router. However, keep in mind that the more devices connected, the slower your internet speed might be.
In summary, connecting to a WiFi router is a simple process that involves understanding your WiFi settings, selecting your network, and entering the correct password. If you encounter any issues, troubleshooting can usually help you solve them. For more insights on WiFi routers and internet connection, visit associates99.com.
Alejandra Reynoso
By Alejandra Reynoso
Alejandra Reynoso is a passionate writer with a gift for creating engaging and informative website articles. With a background in journalism and business with a flair for storytelling, she has mastered the art of captivating readers with her words. Alejandra's writing covers a diverse range of topics, from business and money to news and politics. | __label__pos | 0.917783 |
最終更新日時(UTC):
が更新
履歴 編集
function template
<chrono>
std::chrono::operator+(C++11)
namespace std {
namespace chrono {
// duration + duration = duration
template <class Rep1, class Period1, class Rep2, class Period2>
constexpr typename common_type<duration<Rep1, Period1>, duration<Rep2, Period2>>::type
operator+(const duration<Rep1, Period1>& lhs,
const duration<Rep2, Period2>& rhs); // (1)
// time_point + duration = time_point
template <class Clock, class Duration1, class Rep2, class Period2>
time_point<Clock, typename common_type<Duration1, duration<Rep2, Period2>>::type>
operator+(const time_point<Clock, Duration1>& lhs,
const duration<Rep2, Period2>& rhs); // (2) C++11
// time_point + duration = time_point
template <class Clock, class Duration1, class Rep2, class Period2>
constexpr time_point<Clock, typename common_type<Duration1, duration<Rep2, Period2>>::type>
operator+(const time_point<Clock, Duration1>& lhs,
const duration<Rep2, Period2>& rhs); // (2) C++14
// duration + time_point = time_point
template <class Rep1, class Period1, class Clock, class Duration2>
time_point<Clock, typename common_type<duration<Rep1, Period1>, Duration2>::type>
operator+(const duration<Rep1, Period1>& lhs,
const time_point<Clock, Duration2>& rhs); // (3) C++11
// duration + time_point = time_point
template <class Rep1, class Period1, class Clock, class Duration2>
time_point<Clock, typename common_type<duration<Rep1, Period1>, Duration2>::type>
operator+(const duration<Rep1, Period1>& lhs,
const time_point<Clock, Duration2>& rhs); // (3) C++14
}}
概要
duration, time_pointの加算を行う
戻り値
• (1)
using cd = common_type<decltype(lhs), decltype(rhs)>;
return cd(cd(lhs).count() + cd(rhs).count());
• (2)
using ct = time_point<Clock, common_type<decltype(lhs), decltype(rhs)>>;
return ct(lhs) += rhs;
• (3)
return rhs + lhs;
#include <iostream>
#include <chrono>
using namespace std::chrono;
int main()
{
// duration同士の演算
{
seconds s = seconds(3) + seconds(2);
std::cout << s.count() << std::endl;
milliseconds ms = milliseconds(3) + seconds(2);
std::cout << ms.count() << std::endl;
}
std::cout << std::endl;
// time_pointにdurationを加算
{
time_point<system_clock> p1 = time_point<system_clock>() + seconds(3);
std::cout << p1.time_since_epoch().count() << std::endl;
time_point<system_clock> p2 = seconds(3) + time_point<system_clock>();
std::cout << p2.time_since_epoch().count() << std::endl;
}
}
出力
5
2003
3000000
3000000
バージョン
言語
• C++11
処理系
参照 | __label__pos | 0.986246 |
25 de mayo de 2010
Validación de datos en celdas | Lista desplegable
La validación de datos se usa para controlar lo que el usuario escriba sobre una celda. Es usado por ejemplo, para restringir la entrada de datos determinados, limitar opciones con una lista o sólo escribir números enteros positivos, entre otros.
Es muy útil cuando desea compartir un libro con otras personas y necesita que los datos digitados sean exactos y coherentes.
Para el ejercicio de hoy, haremos una lista desplegable de datos válidos que se organizan a partir de un rango de celdas de otro lugar de la hoja de cálculo.
1. Para crear una lista para la lista desplegable, escriba en celdas en blanco las entradas en filas o columnas. Por ejemplo:
2. Ubíquese en la celda donde va a crear la lista desplegable.
3. Diríjase a la pestaña Datos y en el grupo Herramienta de datos, haga clic al botón Validación de datos
4. En la siguiente ventana, en la pestaña Configuración, seleccione la opción Lista del cuadro Permitir
5. Para especificar la ubicación de la lista desplegable, ubíquese en el campo Origen y seleccione el rango que realizó en el paso 1.
6. Asegúrese de que la referencia está precedido del signo igual (=).
7. Asegúrese de que esté activada la casilla de verificación Celda con lista desplegable
8. Para especificar si la celda puede dejarse en blanco o no, active o desactive la casilla "Omitir blancos"
9. Si desea agregar un mensaje de entrada que se muestre al hacer clic sobre la celda, diríjase a la pestaña "Mensaje de entrada" y recuerde que el texto del mensaje debe ser máximo 255 caracteres.
10. Si desea agregar un mensaje de error que se muestre al digitar un dato no válido, diríjase a la pestaña "Mensaje de error" y asegúrese de tener activa la opción Mostrar mensaje de error si se escriben datos no válidos.
11. Seleccione una de las siguientes opciones para los datos no válidos introducidos:
- Información: Muestra un mensaje informativo que no evita la especificación de datos no válidos.
- Advertencia: Muestra un mensaje de advertencia que no evita la especificación de datos no válidos.
- Detener: Evita la especificación de datos no válidos.
Escriba el texto del mensaje maximo 255 caracteres.
El número máximo de entradas que puede tener una lista desplegable es 32.767
Tomado de | Microsoft Office
Si te gustó, suscríbete al Feed RSS de Ideas de Excel y recibe nuestras actualizaciones
No hay comentarios.:
Publicar un comentario | __label__pos | 0.669848 |
React, React How To, React Tutorial
How to Implement a Dark/Light Mode in React and Improve Your User Experience?
Implementing a light/dark mode using React context is a great way to manage the theme of your application across multiple components. You...
Written by Shivangi Rajde · 2 min read >
dark light mode
Implementing a light/dark mode using React context is a great way to manage the theme of your application across multiple components. You can create a ThemeProvider that provides the current theme to your components, and you can toggle the theme from any part of your app. Let’s first understand the concepts of context in React as we will be using context for implementing a dark theme/light theme in the Application.
Context in React
React Context is an advanced feature that allows you to share state data, functions, or other values between components in a React application without the need to explicitly pass props through each level of the component tree. It’s particularly useful for scenarios where data needs to be accessed by multiple components at different levels of nesting.
Here are some key details about React Context:
1. Context Creation:
• To create a context, you use the createContext function provided by React. It returns an object with two components: Provider and Consumer.
2. Provider Component:
• The Provider component is used to wrap a part of your component tree where you want to make the context data available. It takes a value prop, which can be any JavaScript value (e.g., an object, a function, a string).
3. Consumer Component (Deprecated):
• The Consumer component is used to consume the context data within a component. However, it is considered deprecated in favor of using the useContext hook, which is more concise and easier to use.
4. useContext Hook:
• The useContext hook is the modern way to consume context in functional components. It allows you to access the context value directly within a component. You simply pass the context object (created using createContext) as an argument to useContext, and it returns the current context value.
5. Context Flow:
• Context provides a way to pass data through the component tree without having to pass props manually at every level. When a component subscribes to a context, it will automatically re-render when the context value changes.
6. Multiple Contexts:
• You can create multiple context providers in your app, each responsible for different types of data. This allows you to organize and manage the sharing of data efficiently.
7. Default Values:
• Context providers can also specify default values for context data. If a component consumes context but doesn’t find a matching provider in its ancestor tree, it will use the default value.
How to implement dark/light mode in React?
To implement dark/light mode in any of the React applications, here are the steps for implementation:
Create a ThemeContext
First, create a ThemeContext.js file to define your context:
import React, { createContext, useState, useContext } from 'react';
const ThemeContext = createContext();
export const useTheme = () => {
return useContext(ThemeContext);
};
export const ThemeProvider = ({ children }) => {
const [theme, setTheme] = useState('light');
const toggleTheme = () => {
setTheme((prevTheme) => (prevTheme === 'light' ? 'dark' : 'light'));
};
return (
<ThemeContext.Provider value={{ theme, toggleTheme }}>
{children}
</ThemeContext.Provider>
);
};
In this code:
• We create a ThemeContext using createContext from React.
• We define a ThemeProvider component that wraps its children with the context provider.
• Inside ThemeProvider, we manage the current theme with the useState hook.
• We provide a toggleTheme function to toggle between ‘light’ and ‘dark’ themes.
Wrap Your App with ThemeProvider
Wrap your entire application with the ThemeProvider in your main component or App.js:
import "./App.css";
import NavBar from "./Components/NavBar";
import ErrorPage from "./Pages/ErrorPage";
import ContactUs from "./Pages/ContactUs";
import { ThemeProvider } from "./ThemeContext";
function App() {
return (
<ThemeProvider>
<div className="App">
<NavBar />
</div>
</ThemeProvider>
);
}
export default App;
Use the Theme in Your Components
You can now use the theme in any of your components by importing and using the useTheme hook:
import React from "react";
import { useTheme } from "../ThemeContext.js";
const ContactUs = () => {
const { theme } = useTheme();
return (
<div className={`App ${theme}`}>
<h1>Contact Us</h1>
<div></div>
</div>
);
};
export default ContactUs;
In this example, the toggleTheme function is used to toggle between ‘light’ and ‘dark’ themes, and the current theme is applied as a CSS class to the component.
Styling
In your CSS or styling solution (e.g., styled-components, CSS modules), define styles for both ‘light’ and ‘dark’ themes using the CSS classes you added to your components.
For example, in your CSS:
.App.dark,
.App.dark a {
/* Dark Theme */
background-color: #333 !important;
color: white !important;
}
.App.dark.navbar,
.App.dark.navbar a {
background-color: grey !important;
color: white !important;
}
Now, when you call toggleTheme, the theme will toggle across all components that use the context.
Dark/Light theme demo
Dark/Light theme demo
You’ve implemented a light/dark mode using React context. This approach makes it easy to manage the theme state and apply it consistently throughout your application.
Loading
Leave a Reply
Your email address will not be published. Required fields are marked * | __label__pos | 0.999685 |
Take the 2-minute tour ×
Stack Overflow is a question and answer site for professional and enthusiast programmers. It's 100% free.
I'm trying to draw a pill type ellipse, as in Apple's Mail application which displays the number of emails in the inbox. Any idea why the following isn't drawing?
- (void)drawRect:(CGRect)rect
{
CGContextRef context = UIGraphicsGetCurrentContext();
CGFloat minX = CGRectGetMinX(rect);
CGFloat minY = CGRectGetMinY(rect);
CGFloat maxX = CGRectGetMaxX(rect);
CGFloat maxY = CGRectGetMaxY(rect);
CGFloat radius = 3.0;
CGContextBeginPath(context);
CGContextMoveToPoint(context, (minX + maxX) / 2.0, minY);
CGContextAddArcToPoint(context, minX, minY, minX, maxY, radius);
CGContextAddArcToPoint(context, minX, maxY, maxX, maxY, radius);
CGContextAddArcToPoint(context, maxX, maxY, maxX, minY, radius);
CGContextAddArcToPoint(context, maxX, minY, minX, minY, radius);
CGContextClosePath(context);
CGContextDrawPath(context, kCGPathFill);
CGContextFillPath(context);
}
share|improve this question
1 Answer 1
up vote 3 down vote accepted
I think you've forgotten to set the fill color.
Also, see this question for code to do exactly what you require.
share|improve this answer
1
Thank you for the link to the answer. I wish I found that prior to posting and wasting everyone's bandwidth. Thanks rpetrich. – Coocoo4Cocoa Apr 11 '09 at 22:33
1
No problem. The old question wasn't easy to find; it took me a few mins and I knew it was there. – rpetrich Apr 12 '09 at 1:46
Your Answer
discard
By posting your answer, you agree to the privacy policy and terms of service.
Not the answer you're looking for? Browse other questions tagged or ask your own question. | __label__pos | 0.961744 |
Take the 2-minute tour ×
Stack Overflow is a question and answer site for professional and enthusiast programmers. It's 100% free, no registration required.
I have a very strange array sorting related problem in PHP that is driving me completely crazy. I have googled for hours, and still NOTHING indicates that other people have this problem, or that this should happen to begin with, so a solution to this mystery would be GREATLY appreciated!
To describe the problem/question in as few words as possible: When sorting an array based on values inside a multiple levels deeply nested array, using a foreach loop, the resulting array sort order reverts as soon as execution leaves the loop, even though it works fine inside the loop. Why is this, and how do I work around it?
Here is sample code for my problem, which should hopefully be a little more clear than the sentence above:
$top_level_array = array('key_1' => array('sub_array' => array('sub_sub_array_1' => array(1),
'sub_sub_array_2' => array(3),
'sub_sub_array_3' => array(2)
)
)
);
function mycmp($arr_1, $arr_2)
{
if ($arr_1[0] == $arr_2[0])
{
return 0;
}
return ($arr_1[0] < $arr_2[0]) ? -1 : 1;
}
foreach($top_level_array as $current_top_level_member)
{
//This loop will only have one iteration, but never mind that...
print("Inside loop before sort operation:\n\n");
print_r($current_top_level_member['sub_array']);
uasort($current_top_level_member['sub_array'], 'mycmp');
print("\nInside loop after sort operation:\n\n");
print_r($current_top_level_member['sub_array']);
}
print("\nOutside of loop (i.e. after all sort operations finished):\n\n");
print_r($top_level_array);
The output of this is as follows:
Inside loop before sort operation:
Array
(
[sub_sub_array_1] => Array
(
[0] => 1
)
[sub_sub_array_2] => Array
(
[0] => 3
)
[sub_sub_array_3] => Array
(
[0] => 2
)
)
Inside loop after sort operation:
Array
(
[sub_sub_array_1] => Array
(
[0] => 1
)
[sub_sub_array_3] => Array
(
[0] => 2
)
[sub_sub_array_2] => Array
(
[0] => 3
)
)
Outside of loop (i.e. after all sort operations finished):
Array
(
[key_1] => Array
(
[sub_array] => Array
(
[sub_sub_array_1] => Array
(
[0] => 1
)
[sub_sub_array_2] => Array
(
[0] => 3
)
[sub_sub_array_3] => Array
(
[0] => 2
)
)
)
)
As you can see, the sort order is "wrong" (i.e. not ordered by the desired value in the innermost array) before the sort operation inside the loop (as expected), then is becomes "correct" after the sort operation inside the loop (as expected).
So far so good.
But THEN, once we're outside the loop again, all of a sudden the order has reverted to its original state, as if the sort loop didn't execute at all?!?
How come this happens, and how will I ever be able to sort this array in the desired way then?
I was under the impression that neither foreach loops nor the uasort() function operated on separate instances of the items in question (but rather on references, i.e. in place), but the result above seems to indicate otherwise? And if so, how will I ever be able to perform the desired sort operation?
(and WHY doesn't anyone else than me on the entire internet seem to have this problem?)
PS. Never mind the reason behind the design of the strange array to be sorted in this example, it is of course only a simplified PoC of a real problem in much more complex code.
share|improve this question
add comment
2 Answers
up vote 1 down vote accepted
Your problem is a misunderstanding of how PHP provides your "value" in the foreach construct.
foreach($top_level_array as $current_top_level_member)
The variable $current_top_level_member is a copy of the value in the array, not a reference to inside the $top_level_array. Therefore all your work happens on the copy and is discarded after the loop completes. (Actually it is in the $current_top_level_member variable, but $top_level_array never sees the changes.)
You want a reference instead:
foreach($top_level_array as $key => $value)
{
$current_top_level_member =& $top_level_array[$key];
EDIT:
You can also use the foreach by reference notation (hat tip to air4x) to avoid the extra assignment. Note that if you are working with an array of Objects, they are already passed by reference.
foreach($top_level_array as &$current_top_level_member)
To answer you question as to why PHP defaults to a copy instead of a reference, it's simply because of the rules of the language. Scalar values and arrays are assigned by value, unless the & prefix is used, and objects are always assigned by reference (as of PHP 5). And that is likely due to a general consensus that it's generally better to work with copies of everything expect objects. BUT--it is not slow like you might expect. PHP uses a lazy copy called copy on write, where it is really a read-only reference. On the first write, the copy is made.
PHP uses a lazy-copy mechanism (also called copy-on-write) that does not actually create a copy of a variable until it is modified.
Source: http://www.thedeveloperday.com/php-lazy-copy/
share|improve this answer
So it WAS that, thanks a lot for clearing this up! But why on earth would they use a copy as the default behavior, it's both slower and less intuitive (IMHO)?! Shouldn't the command be called "forCopyOfEach" then? :) Anyway, I've now received two answers here, out of which yours had the most detailed answer, but the other one had a more elegant solution code-wise, which one do I select as the answer? Are there any rules or recommendations from StackOverflow in situations like this? – QuestionOverflow Oct 7 '12 at 23:09
@QuestionOverflow I knew of the foreach by reference syntax, but I neglected to include it as a short-hand notation after the explanation. I just added it with credit to air4x. Also I added some info about why the language does what it does by default. I hope this helps! – jimp Oct 8 '12 at 2:20
@QuestionOverflow Also, when you have multiple correct answers, it is good to upvote those and then award the best answer (in your opinion, not everyone will necessarily agree) by marking it. Btw, welcome to StackOverflow! – jimp Oct 8 '12 at 2:22
1
Thanks for the additional info, now your answer is definitely the most complete one, so I just marked it as answer to this question. Sadly, I apparently don't have enough reputation to be allowed to "upvote" things, but I'll try to remember to do it later when I do. And finally, thanks for the welcome! :) – QuestionOverflow Oct 8 '12 at 4:03
Thanks! ... And starting out can be a challenge, but you are almost there. You only need 2 more rep to vote up: stackoverflow.com/privileges/vote-up :) – jimp Oct 8 '12 at 4:09
add comment
You can add & before $current_top_level_member and use it as reference to the variable in the original array. Then you would be making changes to the original array.
foreach ($top_level_array as &$current_top_level_member) {
share|improve this answer
Thanks a lot for this elegant solution! But why on earth would they use a copy as the default behavior, it's both slower and less intuitive (IMHO)?! Shouldn't the command be called "forCopyOfEach" then? :) Anyway, I've now received two answers here, out of which yours had the most elegant solution code-wise, but the other one had a more detailed answer/explanation, which one do I select as the answer? Are there any rules or recommendations from StackOverflow in situations like this? – QuestionOverflow Oct 7 '12 at 23:12
Making a copy allows you to work with it inside the foreach without worrying about changing the original array. Select the first answer if both are similar or the one which is most useful. Upvote the other answers you find useful. – air4x Oct 8 '12 at 4:20
Thanks, I will upvote your answer as soon as I get enough reputation to be allowed to do so then! – QuestionOverflow Oct 8 '12 at 10:52
add comment
Your Answer
discard
By posting your answer, you agree to the privacy policy and terms of service.
Not the answer you're looking for? Browse other questions tagged or ask your own question. | __label__pos | 0.839231 |
Trying to do a lot in one query. Not sure if I should be doing distinct sub queries or a group of joins.
This is running on a SQL Database App on Microsoft Azure.
Table/View is:
TourmamentID INT
EventID INT
EventName NVARCHAR(50)
TeamID INT
TeamName NVARCHAR(50)
EventStart Datetime
TeamEnd Datetime
iscomplete bit
Here is example data from the view.
TournamentID, EventName, TeamName, EventStart, TeamEnd, iscomplete
---------- -------- ---------- ------- --------- -------
1 E1 T1 sqldate sqldate 1
1 E2 T1 sqldate sqldate 1
1 E1 T2 sqldate sqldate 1
1 E2 T2 sqldate sqldate 1
1 E1 T3 sqldate sqldate 1
2 E1 T1 sqldate null null
2 E1 T2 sqldate sqldate 1
2 E2 T2 sqldate sqldate 1
3 E1 T3 sqldate null null
I need to show a standings result set that would have the total number of teams who have completed an event with the top three fastest times as columns. Having the team name and time would be best.
EventName, NumberTeamscompleted, 1st 2nd 3rd
E1 3 Datediff (T1) DateDiff (T3) DateDiff(T2)
E2 2
Query would only return result for a single tournament (where tournamentID = 1)
I have done a self join back on the table to get more than one set of columns for results but I have not gotten the ability to have the second set be the second fastest per event.
I also have an independent query that does a count and group by, order by to get the sum but when I try to merge them everything falls apart.
1 Answers
1
Gordon Linoff On
You can use conditional aggregation:
select tournamentid, teamname,
count(*) as num_completed,
max(case when seqnum = 1 then teamname end) as team_1,
max(case when seqnum = 2 then teamname end) as team_2,
max(case when seqnum = 3 then teamname end) as team_3
from (select t.*,
row_number() over (partition by tournamentid, teamname
order by datediff(day, teamstart, teamend)
) as seqnum
from t
where iscomplete = 1
) t
group by tournamentid, teamname; | __label__pos | 0.52297 |
Source
qslaunch / setup.py
Full commit
#!/usr/bin/env python
# -*- Mode: python; tab-width: 4; indent-tabs-mode: nil; coding: utf-8 -*-
"""
setup.py
:copyright: 2010 Serge Émond
:license: Apache License 2.0
"""
from distutils.core import setup
from distutils.command.install_data import install_data
from distutils.command.install import INSTALL_SCHEMES
import os
import sys
class osx_install_data(install_data):
# On MacOS, the platform-specific lib dir is /System/Library/Framework/Python/.../
# which is wrong. Python 2.5 supplied with MacOS 10.5 has an Apple-specific fix
# for this in distutils.command.install_data#306. It fixes install_lib but not
# install_data, which is why we roll our own install_data class.
def finalize_options(self):
# By the time finalize_options is called, install.install_lib is set to the
# fixed directory, so we set the installdir to install_lib. The
# install_data class uses ('install_data', 'install_dir') instead.
self.set_undefined_options('install', ('install_lib', 'install_dir'))
install_data.finalize_options(self)
if sys.platform == "darwin":
cmdclasses = {'install_data': osx_install_data}
else:
cmdclasses = {'install_data': install_data}
def fullsplit(path, result=None):
"""
Split a pathname into components (the opposite of os.path.join) in a
platform-neutral way.
"""
if result is None:
result = []
head, tail = os.path.split(path)
if head == '':
return [tail] + result
if head == path:
return result
return fullsplit(head, [tail] + result)
# Tell distutils to put the data_files in platform-specific installation
# locations. See here for an explanation:
# http://groups.google.com/group/comp.lang.python/browse_thread/thread/35ec7b2fed36eaec/2105ee4d9e8042cb
for scheme in INSTALL_SCHEMES.values():
scheme['data'] = scheme['purelib']
packages, data_files = [], []
walk_paths = ['qslaunch']
for walk_path in walk_paths:
for dirpath, dirnames, filenames in os.walk(walk_path):
# Ignore dirnames that start with '.'
for i, dirname in enumerate(dirnames):
if dirname.startswith('.'): del dirnames[i]
if '__init__.py' in filenames:
packages.append('.'.join(fullsplit(dirpath)))
elif filenames:
data_files.append([dirpath, [os.path.join(dirpath, f) for f in filenames]])
scripts = []
for dirpath, dirnames, filenames in os.walk('bin'):
# Ignore dirnames that start with '.'
for i, dirname in enumerate(dirnames):
if dirname.startswith('.'): del dirnames[i]
scripts += [os.path.join(dirpath, f) for f in filenames]
# Dynamically calculate the version based on agifm.VERSION.
version = __import__('qslaunch').get_version()
if u'HG' in version:
version = ' '.join(version.split(' ')[:-1])
setup(name='qslaunch',
version= version.replace(' ', '-'),
description='Simple QuickSilver launcher helper',
author='Serge Emond',
author_email='[email protected]',
license='Apache License 2.0',
url='http://greyworld.net/en/projects/qslaunch/',
packages=packages,
cmdclass=cmdclasses,
data_files=data_files,
scripts=scripts,
install_requires=["appscript"],
) | __label__pos | 0.921768 |
OpenVMS Source Code Demos
DIFFIE_HELLMAN_DEMO_IN_C
//============================================================================
// title : diffie_hellman_demo_in_c_xxx.c
// author : Neil Rieck (http://neilrieck.net)
// : Waterloo, Ontario, Canada.
// created : 2012-07-22
// platform : HP-C on OpenVMS-8.4 (Alpha)
// purpose : demonstrates Diffie-Hellman key exchange employing the usual
// actors: Bob and Alice (who want to communicate privately) and
// Eve (who wishes to Evesdrop)
// references: https://en.wikipedia.org/wiki/Diffie-Hellman_key_exchange
// : http://asecuritysite.com/encryption/diffie (uses JavaScript with BigInt)
// Caveats : 1) This program demonstrates key-exchange concepts but is
// limited to 64-bit math. If you choose values which cause
// g^a1 (or g^b1) to require more than 19 decimal digits, then
// this program will throw an "integer overflow" error.
// 2) This c program employs the mod() function (found in <math>)
// employing the "double float" data type which limits precision
// to 16 digits. It would not be too difficult to write a mod()
// function based upon "long long" but that would only increase
// precision to 19 digits.
// 3) The diffie-hellman algorithm is only secure when P is a prime
// number over 1000 bits in size
// 4) all the other input numbers must be smaller than P
// history :
// ver who when what
// --- --- ------ ------------------------------------------------------------
// 100 NSR 120722 1. original effort
// NSR 140418 2. renamed variable y to g; changed the defaults
//============================================================================
#include <stdio> //
#include <errno> //
#include <stdlib> //
#include <string> //
#include <math> //
//
void nsr_fgets(char* a, int b, FILE* c); //
void remove_trailing_ws(char* a); //
//
// declare Alice's data
//
unsigned long long a1,
a2,
a3;
//
// declare Bob's data
//
unsigned long long b1,
b2,
b3;
//
// declare common data
//
unsigned long long g, // generator
p; // prime
char keyboard[132];
//
// main()
//
void main() {
printf("diffie-hellman-100\n"); //
printf("==================\n"); //
printf("Caveats:\n");
printf("1) This demo program employs 64-bit signed integers. If you choose values\n");
printf(" which cause g^a1 (or g^b1) to require more than 19 decimal digits, then\n");
printf(" this program will throw an 'integer overflow' error.\n");
printf("2) This demo program employs the mod() function found in <math> which means\n");
printf(" precision will be limited to 16 decimal digits\n");
printf("3) The actual algorithm is not secure unless p is a prime number larger\n");
printf(" than 1000 bits (~ 300 decimal digits)\n\n");
//
// in a production program, some of these numbers would be
// picked randomly at the beginning of each communication
// session
//
p = 29;
printf("enter prime 'p'? (default=%lld) ",p); //
keyboard[0] = '\0'; //
nsr_fgets(keyboard,sizeof(keyboard), stdin); //
if (strlen(keyboard)>0){ //
p=atoi(keyboard);
}
printf("note: all future inputs must be less than prime\n\n");
//
g = 3; //
printf("enter generator 'g'? (default=%lld) ",g); //
keyboard[0] = '\0'; //
nsr_fgets(keyboard,sizeof(keyboard), stdin); //
if (strlen(keyboard)>0){
g=atoi(keyboard);
}
a1 = 4; //
printf("enter Alice's guess? (default=%lld) ",a1); //
keyboard[0] = '\0'; //
nsr_fgets(keyboard,sizeof(keyboard), stdin); //
if (strlen(keyboard)>0){
a1=atoi(keyboard);
}
b1 = 5; //
printf("enter Bob's guess? (default=%lld) ",b1); //
keyboard[0] = '\0'; //
nsr_fgets(keyboard,sizeof(keyboard), stdin); //
if (strlen(keyboard)>0){
b1=atoi(keyboard);
}
//
// Alice's calc #1 (private guess >> public key)
//
a2 = pow(g, a1); //
a2 = a2 % p; // a2 will be sent to Bob
//
// Bob's calc #1 (private guess >> public key)
//
b2 = pow(g, b1); //
b2 = b2 % p; // b2 will be sent to Alice
//
// <<< a handshake occurs (exchanging public keys) >>>
//
// Alice's calc #2 (using Bob's public key)
//
a3 = pow(b2, a1); //
a3 = a3 % p; // Alice's computed key
//
// Bob's calc #2 (using Alice's public key)
//
b3 = pow(a2, b1); //
b3 = b3 % p; // Bob's computed key
//
// All done
//
printf("Data sent across the channel (Eve can see it):\n");
printf(" public Prime P: %lld\n",p);
printf(" public Generator G: %lld\n",g);
printf("Randomly generated private data (never sent)\n");
printf(" Alice's private number a1: %lld\n",a1);
printf(" Bob's private number b1: %lld\n",b1);
printf("Computed data sent across the channel (Eve can see it):\n");
printf(" Alice's public number a2: %lld\n",a2);
printf(" Bob's public number b2: %lld\n",b2);
printf("Computed private data (never sent)\n");
printf(" Alice's computed key a3: %lld\n",a3);
printf(" Bob's computed key b3: %lld\n",b3);
printf("Notes:\n");
printf("1. Alice and Bob can now communicate privately using\n");
printf(" computed symmetric key %lld to encrypt/decrpyt\n",a3);
printf("2. If this exchange was encrypted it would be even more secure\n");
}
//----------------------------------------------------------------------------
// my fgets (read a string;
// don't overflow the variable; don't store trailing paper command) //---------------------------------------------------------------------------- void nsr_fgets(char* a, int b, FILE* c) { int x; fgets(a,b,c); // x = strlen(a); // switch (a[x-1]) { // case '\r': // carriage return case '\n': // line-feed a[x-1] = '\0'; // default: // } // } // //---------------------------------------------------------------------------- // remove trailing white space //---------------------------------------------------------------------------- void remove_trailing_ws(char* a) { int x = strlen(a); // loop: // if (x==0) return; // switch (a[x-1]) { // test last character case '\r': // carriage return case '\n': // line-feed case '\t': // tab a[x-1] = '\0'; // x--; // goto loop; // c-programmers horrified default: // return; // } // } // | __label__pos | 0.89289 |
Are there alternatives to the Smartsheet conditional formatting options?
Mike S.
Mike S. ✭✭✭✭
edited 11/07/23 in Add Ons and Integrations
I have a sheet (part of a set so there will ultimately be many sheets) that will need in the neighborhood of 10,000 conditional formatting rules. Supposedly there is no limit to the rules, but I have definitely found the limit where the sheet functions well. Right now I have about 1,800 rules and when I open the conditional formatting dialogue box the sheet freezes. Then freezes multiple times throughout the process of building them.
Ultimately every project would have this sheet and then the data is collected via a report so all projects are seen together along with their conditional formats. I hate to introduce a new tool to do this, but I am at a loss for how to get the necessary formatting without doing something.
Its been a long time since I have used Smartsheet's data connector to excel, does it work with pulling data from a report? That is the best alternative I can think of at this time. Then the formatting can just be done in excel.
Thoughts?
Thank you!
Answers
• Paul Newcome
Paul Newcome ✭✭✭✭✭✭
None of the connectors will pull formatting. They will only pull data.
Why do you need so many conditional formatting rules?
• Mike S.
Mike S. ✭✭✭✭
@Paul Newcome, I am good with the connectors only pulling data, then I can format with excel. Can a connector pull from a report?
As for the quantity of formatting, the sheet (and resulting report) is a roadmap view of specific schedule items and each item gets its own color format. So on the final report, all jobs are listed (will be around 300). Then up to 30 items from each project are shown on that projects line according to the date. The columns represent a single day and there is 1 years worth of view on the report. So each of the 365 columns could have any of the 30 items on different rows. So on the base sheet, the conditional formatting for each item needs to live in each column. Then the report pulls them all together. I can't share the current view that lives in excel, but if I can find a way to show what I am talkin about, I will post it. | __label__pos | 0.847236 |
Why are we still using attachments in 2018?
Who remembers 2006?
12 years ago, Google launched a truly innovative suite of products to compete with Microsoft's behemoth Office suite called "Google Docs and Sheets".
This promised to revolutionize the way we work.
Instead of having to email Word and Excel attachments to co-workers and worry about old versions, conflicting changes, etc., the document was hosted in one place, and everyone could always access and update the very latest version with no fuss or muss.
Cloud Computing was The Next Big Thing™* and everything was going to be better!
*NOTE: Cloud Computing was not really new, but more a reboot of networked timesharing from the 60s and 70s distributed on a global scale. But that's another story for another time.
Fast forward 12 years, and Word and Excel files are still everywhere!
Now, there are still a few cases where Docs and Sheets are missing features that Word and Excel have.
For instance, I sometimes miss the automated hierarchical numbering via Styles that Word provides for long documents like technical manuscripts.
But let's face it, most people don't even know this feature exists, and if they did, wouldn't need it.
95% of the time, an online word processor or spreadsheet does everything you need and more. GoogleMicrosoft, and many other companies offer these services free for personal use.
Google even lets you back up the raw data for free, if you're worried about it becoming "lost" in the cloud. (Trust me, it's far more likely you'd lose it on your own computer due to hardware failure.)
So tell me everyone: What gives?
Why are we still using attachments in 2018?
Popular posts from this blog
When did software go off the rails?
Manulife CoverMe insurance isn't worth it
"Pipeline won't get built." | __label__pos | 0.997592 |
What’s BRC-20 Ordi Token? Price Prediction and Live Chart
May 4, 2023
What’s STRK (Starknet) Coin Valued at $8 Billion? Airdrop and Price Prediction
May 6, 2023
What’s BRC-20 Ordi Token? Price Prediction and Live Chart
May 4, 2023
What’s STRK (Starknet) Coin Valued at $8 Billion? Airdrop and Price Prediction
May 6, 2023
How To Do Layer Zero Token Airdrop And Price Prediction?
Layer Zero token has been very popular recently, and users are looking for ways to participate in the airdrop. What is Layer Zero token?
1. Layer Zero Token Fundamental Analysis
Common characteristics of popular high-quality tokens: 1. Clear market demand, addressing a specific pain point for users. 2. Over a billion dollars in funding (Dasman, 2021).
1.1 Competitive Advantage of Layer Zero
These two fundamental aspects ensure that the token has minimal risk of Rug Pull during issuance, but other risks still exist. Layer Zero primarily addresses the current issue of cross-chain interoperability for tokens. In addition to Ethereum, the market includes various public chains such as SOL, COSMOS, POT, AVA, Polygon, OP, and recently SUI. Each of these chains has its own ecosystem, wallets, and networks. This makes token circulation more challenging and requires cross-chain conversions through connecting bridges.
Traditional cross-chain bridge protocols have many security vulnerabilities, high costs, and slow speeds. Furthermore, not all public chains support cross-chain bridges (Rohrer & Tschorsch, 2021).
For example, if Ethereum (ETH) wants to cross-chain to the Solana network, it can only be exchanged for Sol tokens and used on the Solana network. This means users have an additional token in their wallet. To use Ethereum on the Solana network without the need for exchanging to Sol tokens, support for cross-chain bridges between ETH and SOL is required. In the above scenario, the operation process of the cross-chain bridge is as follows:
Step 1: Users store the ETH they need to use on the Solana network in the treasury of the ETH-SOL cross-chain bridge, which is a multi-signature smart contract.
Step 2: Based on the corresponding ETH, new tokens (e.g., SETH) are minted on the Solana network.
Step 3: Users use SETH on the Solana network.
If users want to withdraw their original ETH from the Solana network back to Ethereum, they would need to destroy the equivalent amount of SETH on the cross-chain bridge and receive the corresponding ETH.
The cross-chain bridge protocol makes it easier to trade various tokens on DEXs and expands the possibilities of DeFi beyond the Ethereum ecosystem, allowing for token lending and borrowing beyond Ethereum-related tokens. This enables interoperability among tokens from different public chains (Developer, 2023).
However, traditional cross-chain bridges have significant security vulnerabilities. The major issue is the possibility of sending false tokens, allowing for minting on the cross-chain bridge and subsequent withdrawal. Another problem is that each token conversion requires verification on both networks, validating the block counts of the corresponding networks. This incurs high costs.
Vitalik Buterin also strongly opposes cross-chain bridges and advocates for multi-chain support rather than cross-chain interoperability.
The key point is that no public chain currently has the capability to maintain its own chain while also being compatible with other chains. The development cost of such technology is too high, and with the increasing number of public chains, it becomes difficult to solely support the upgrades of these new chains.
At the same time, new public chains always surpass the old ones in terms of security and speed. New public chains are not interested in using the old ones because they believe in the superiority of their own technology and want others to use their solutions. Multi-chain is an idealistic and unrealistic approach.
The biggest problem lies in the fact that every time a new public chain emerges, there is a corresponding investment. With the rapid pace of blockchain technology, the limited funds in the capital market become fragmented due to the continuous emergence of new public chains, leading to reduced efficiency. Cross-chain interoperability truly addresses this issue by providing decentralized liquidity to the blockchain industry. It also means that Ethereum, the leading player in the smart contract market, will face stronger competition. This viewpoint goes against the mainstream market perspective and does not have a positive long-term outlook for Ethereum(Developer, 2023).
2.The Issues with Layer Zero
Layer Zero is considered an upgraded version of cross-chain protocols.
In traditional cross-chain protocols, Layer Zero adopts new technologies and architectures. The major upgrade is that it verifies partial blocks instead of the entire block. This significantly speeds up the cross-chain process and reduces the associated costs. Layer Zero verifies the headers of the blocks, whereas traditional protocols require the entire block to be verified on both networks. Partial verification requires the involvement of third parties. Layer Zero relies on third-party nodes and oracle mechanisms for partial verification.
2.1 Security of Layer Zero
Cross-chain protocols have inherent security vulnerabilities, and for Layer Zero, its security concerns mainly revolve around node and oracle verification. If both nodes and oracles engage in malicious verification, the issue of false tokens can reoccur. According to Layer Zero’s mechanism, the chances of both nodes and oracles engaging in malicious verification simultaneously are very low unless a node and an oracle collude. If such collusion occurs, it would be difficult to quickly identify stolen transactions, resulting in significant losses. Once such a problem arises, it is foreseeable that Layer Zero would be completely terminated(Developer, 2023).
From a technical perspective, this is one of the risks associated with Layer Zero.
3. Layer Zero Ecosystem and Airdrops
Layer Zero’s ecosystem is well-known for its 8 projects: Stargate Finance, Altitude DeFi, Pendle, Tapioca, RDNT, Trader Joe, Mugen Finance, and Rage Trade. Among them, Stargate is the flagship cross-chain project of Layer Zero. Users who hold Stargate token (STG) are eligible to receive cross-chain rewards. 45% of STG tokens are currently locked, and it is believed that with the issuance of Layer One tokens, the unlocking of STG tokens may happen earlier, leading to potential selling pressure.
Layer One’s airdrop is expected to be similar to ARB, where users need to perform certain actions on their chain, such as crossing over to Layer Zero through the official website. However, the official information does not specify whether there will be an airdrop, and it is only speculation that there might be one. Therefore, the conditions for the airdrop are unknown, and users can only rely on their previous experience with ARB airdrops to anticipate the potential airdrop in Layer Zero’s projects.
The following airdrop guide is for reference only and is not an official requirement. If you have participated in previous ARB airdrops, you should be familiar with the following steps:
1. Stake $STG tokens on Stargate, any amount is acceptable.
2. Cross chain to Stargate through LayerZero’s official website, preferably using USDC as LayerZero settles in USDC.
3. Cross chain to Aptos.
4. Cross chain to LiquidSwap.
5. Cross chain to SushiSwap.
4. Price Prediction for LayerZero
In the first round of valuation, Layer Zero was valued at $1 billion with a funding of $135 million led by Sequoia Capital. In the second round, Series B funding amounted to $120 million, increasing the valuation to $3 billion. The total token supply has not been disclosed, so it is currently impossible to estimate the token price. Users can stay updated or bookmark this article for future announcements.
Price predictions will be published in subsequent updates below this article.
Reference
Rohrer, E., & Tschorsch, F. (2021). Blockchain Layer Zero: Characterizing the Bitcoin Network through Measurements, Models, and Simulations. Canada: IEEE. Retrieved from IEEE.
Dasman, S. (2021). Analysis of return and risk of cryptocurrency bitcoin asset as investment instrument. In Accounting and Finance Innovations. MPH.
Developer. (2023). Retrieved from LayerZero Network: https://layerzero.network/developers
| __label__pos | 0.804104 |
Create chart.js using ajax by calling another php file using XMLHttpRequest
I’m trying to create a Dash board web page. I’m connected to MS SQL 2008 and using PHP 7.3
the page uses AJAX create chart.js using XMLHttpRequest() to get sql query results from another page
dashboard.php is the main page that does the request prcweeksaleschart.php is the page that is called by ajax
prcweeksaleschart.php handles the POST request and generates the SQL data successfully then creates the element and the related chart
the element and related chart code are then entered in the dashboard page
the problem is that the dashboard page doesn’t load the chart at all
below is the code for dashboard.php
<?php
// Initialize the session
session_start();
// Check if the user is logged in, if not then redirect him to login page
if(!isset($_SESSION["loggedin"]) || $_SESSION["loggedin"] !== true){
header("location: index.php");
exit;
}
if (isset($_SESSION["loggedin"]) && $_SESSION["loggedin"] === true) {
if ($_SESSION["badmin"] != 1) {
header("location: index.php");
}
}
// Include config file
require_once "config.php";
$defdate = date("Y-m-d");
?>
<!DOCTYPE html>
<html lang="en">
<head>
<title>BMAM|Rpt - DashBoard</title>
<?php Include "bs4.php" ?>
<!--AJAX Week Sales-->
<script>
function genweeksalesrep() {
// Creating the XMLHttpRequest object
document.getElementById('divweeksales').innerHTML = '<div class="progress"><div class="progress-bar progress-bar-striped progress-bar-animated" role="progressbar" aria-valuenow="100" aria-valuemin="100" aria-valuemax="100" style="width: 100%"></div></div>';
document.getElementById('divweeksaleschart').innerHTML = '<div class="progress"><div class="progress-bar progress-bar-striped progress-bar-animated" role="progressbar" aria-valuenow="100" aria-valuemin="100" aria-valuemax="100" style="width: 100%"></div></div>';
//Details
var request = new XMLHttpRequest();
// Instantiating the request object
request.open("POST", "prc/prcweeksales.php");
// Defining event listener for readystatechange event
request.onreadystatechange = function() {
// Check if the request is compete and was successful
if(request.readyState === XMLHttpRequest.DONE && request.status === 200) {
// Inserting the response from server into an HTML element
document.getElementById("divweeksales").innerHTML = request.responseText;
}
};
// Retrieving the form data
var myForm = document.getElementById("frmweeksales");
var formData = new FormData(myForm);
// Sending the request to the server
request.send(formData);
//Chart
var requestc = new XMLHttpRequest();
// Instantiating the request object
requestc.open("POST", "prc/prcweeksaleschart.php");
// Defining event listener for readystatechange event
requestc.onreadystatechange = function() {
// Check if the request is compete and was successful
if(requestc.readyState === XMLHttpRequest.DONE && requestc.status === 200) {
// Inserting the response from server into an HTML element
document.getElementById("divweeksaleschart").innerHTML = requestc.responseText;
//$('#myChart').remove();
//$('#divweeksaleschart').append('<canvas id="myChart" width="100%" height="50px"></canvas>');
myChart.reset();
myChart.update();
}
};
// Retrieving the form data
var myFormc = document.getElementById("frmweeksales");
var formDatac = new FormData(myFormc);
// Sending the request to the server
requestc.send(formDatac);
}
</script>
<!--AJAX Week Sales-->
<!--Java Function to clear inner html-->
<script type="text/javascript">
$(document).ready(function(){
$("#frmweeksalesresetbtn").click(function(){
$("#divweeksales").html("Clear!");
$("#divweeksaleschart").html("");
});
});
</script>
</head>
<body>
<?php
include "header.php";
?>
<div class="container-fluid" style="font-size: 90%;">
<h5>DASH BOARD</h5>
<hr>
<div class="row">
<div class="col">
<div class="card">
<div class="card-header">
<h5>Weekly Sales</h5>
<div class="row">
<div class="col">
<form class="form-inline" id="frmweeksales">
<select class="form-control form-control-sm mb-2 mr-sm-2" name="company">
<option value="1">Bawabet Al Maamoura</option>
<option value="2" selected>Nitrogen</option>
</select>
<!--<label class="mr-sm-2" for="datet">Date:</label>-->
<input class="form-control form-control-sm mb-2 mr-sm-2" type="date" name="todate" id="datet" value="<?php echo $defdate; ?>">
<input type="button" class="btn btn-primary btn-sm mb-2" value="Refresh" id="frmweeksalesbtn" onclick="genweeksalesrep()">
</form>
</div>
<div class="col">
<button class="btn btn-secondary btn-sm float-right" id="frmweeksalesresetbtn">Reset</button>
</div>
</div>
</div>
<div class="card-body">
<div class="row">
<div class="col-6" id="divweeksales">
</div>
<div class="col-6" id="divweeksaleschart">
</div>
</div>
</div>
</div>
</div>
</div>
</div>
<div class="container-fluid">
<footer class="footer">
<?php Include "footer.php" ?>
</footer>
</div>
</body>
</html>
and here is the code in prcweeksaleschat.php:
<?php
// Initialize the session
session_start();
// Check if the user is logged in, if not then redirect him to login page
if(!isset($_SESSION["loggedin"]) || $_SESSION["loggedin"] !== true){
header("location: index.php");
exit;
}
if (isset($_SESSION["loggedin"]) && $_SESSION["loggedin"] === true) {
if ($_SESSION["badmin"] != 1) {
header("location: index.php");
}
}
// Include config file
require_once "../config.php";
$brands = $thisweek = $lastweek = $color1 = $color2 = "";
$arr = array();
?>
<?php
if ($_SERVER["REQUEST_METHOD"] == "POST") {
$todate = htmlspecialchars(trim($_POST["todate"]));
$company = htmlspecialchars(trim($_POST["company"]));
$server = DB_SERVER;
$options = array( "UID" => DB_USERNAME, "PWD" => DB_PASSWORD, "Database" => DB_NAME, "CharacterSet" => "UTF-8", "ReturnDatesAsStrings" => true);
$conn = sqlsrv_connect($server, $options);
echo $conn."<br>";
$sqlsalesrep = "EXEC prcweeksales '".$todate."', " . $company . ",1";
echo $sqlsalesrep."<br>";
$querysalesrep = sqlsrv_query($conn, $sqlsalesrep);
echo $querysalesrep."<br>";
if ($querysalesrep === false){
exit("<pre>".print_r(sqlsrv_errors(), true));
}
if ($querysalesrep != false) {
while ($rowasalerep = sqlsrv_fetch_array($querysalesrep)){
$arr[] = $rowasalerep;
}
for ($i=0; $i < count($arr) ; $i++) {
$brands .= "'".$arr[$i][1]."',";
$thisweek .= $arr[$i][2].",";
$lastweek .= $arr[$i][3].",";
$color1 .="'#c45850',";
$color2 .="'#3e95cd',";
}
$brands = rtrim($brands, ",");
$thisweek = rtrim($thisweek, ",");
$lastweek = rtrim($lastweek, ",");
$color1 = rtrim($color1, ",");
$color2 = rtrim($color2, ",");
//echo $brands;
//echo "<br>";
//echo $thisweek;
//echo "<br>";
//echo $lastweek;
}
}
?>
<canvas id="myChart" width="100%" height="50px"></canvas>
<script>
var ctx = document.getElementById('myChart');
var myChart = new Chart(ctx, {
type: 'horizontalBar',
data: {
labels: [<?php echo $brands; ?>],
datasets: [{
label: 'This week',
backgroundColor: [<?php echo $color1; ?>],
data: [<?php echo $thisweek ?>]
},
{
label: 'Last week',
backgroundColor: [<?php echo $color2; ?>],
data: [<?php echo $lastweek ?>]
}],
},
options: {
legend: { display: true },
title: {
display: true,
text: 'Weekly Sales Chart'
}
}
});
</script>
My php is very low level, but do you have an opening <php ? tag in the dashboard file? I don’t see one.
yes I do, but I missed it when I copied the code from my project | __label__pos | 0.558072 |
This is an old documentation. Go to the latest Customer's Canvas docs
Markings
When you build an online print product designer for end users who are not computer-savvy, you want to keep the user interface as simple as possible and turn off all the elements that may confuse them. However, in many cases, it is important to give them some tools to place elements precisely.
Customer's Canvas includes three useful tools for this - rulers, grids, and snap lines.
Rulers, grids, and snap lines.
Let us see how to enable and configure them.
Rulers
To configure rulers, open the ~\Configuration\clientConfig.json file and make sure there is a block which looks like this:
json
"rulers": {
"enabled": true,
"unit": "inch",
"origin": { "X": 0, "Y": 0 }
}
The properties are self-explanatory, but let us take a closer look at them.
Measurement Units
The standard length unit in Customer's Canvas is a point, i.e. 1/72 of an inch. However, regular users are most likely more comfortable with traditional units like inches or millimeters. You can use the unit property to switch the units to one of the following values:
• inch
• mm
• cm
• point
• custom
If you prefer to use some other measurement unit, set this property to custom and specify the additional customUnitScale property. This property should contain a ratio allowing Customer's Canvas to convert your unit to points.
For example, imagine that you want to use picas as a unit of length. This is a traditional typography unit, which equals 1/72 of a foot (equivalent to 1/6 of an inch). In other words, 1 point = 1/12 pica (0.0833333 pica). Your rulers entry will look as follows:
json
"rulers": {
"unit": "custom",
"customUnitScale": 0.0833333
}
A Point of Origin
You can specify the point of origin relative to the upper-left corner of the template using the origin property. It accepts the {"X": number, "Y": number} object specifying the offset in measurement units of the rulers.
Display of Rulers
When the enabled property is true, rulers are visible; otherwise, Customer's Canvas hides both the horizontal and vertical rulers.
Override of Rulers for a Specific Product
If for some reason you want to use custom settings for rulers for a specific product, you may do this using the IConfiguration interface.
JavaScript
let configuration = {
canvas: {
rulers: {
enabled: true,
unit: "inch",
origin: { X: 0, Y: 0 }
}
}
};
If you just want to disable the rulers for a specific product, use the following configuration.
JavaScript
let configuration = {
canvas: {
rulers: {
enabled: false
}
}
};
Grids
Like rulers, grids are configured in clientConfig.json. Open this file to find the following object:
json
"grid": {
"horizontalColor": "rgba(0, 255, 255, 0.2)",
"verticalColor": "rgba(0, 255, 255, 0.2)",
"stepX": 0.25,
"stepY": 0.25,
"lineWidthPx": 1,
"enabled": true
}
Appearance
This marking is disabled by default. To allow your users to enable and disable the grid in the user interface, set the gridCheckboxEnabled property of the Bottom Toolbar to true. After that, the Grid command appears on the Marking menu.
To change the color of horizontal and vertical lines, you can specify a color value in the CSS format in the horizontalColor and verticalColor properties. You can also use lineWidthPx to set the gridline width in pixels.
Cell Size
To control the size of the grid cells, use the stepX and stepY properties to specify the horizontal and vertical distance between grid lines in the measurement units of the rulers.
Override of Grids for a Specific Product
If for some reason you want to use custom grid settings for a specific product, you may do this using the IConfiguration interface.
JavaScript
let configuration = {
grid: {
horizontalColor: "rgb(208, 224, 227)",
verticalColor: "rgb(208, 224, 227)",
stepX: 1,
stepY: 1,
lineWidthPx: 1,
enabled: true
}
};
If you just want to disable the grid for a specific product, simply use the following configuration.
JavaScript
let configuration = {
grid: {
enabled: false
}
};
Snap Lines
Customer's Canvas allows you to configure three types of snap lines that will cling to design elements, product pages, and safety lines. In the ~\Configuration\clientConfig.json file, you can configure these types of snap lines as follows:
json
"canvas": {
"snapLines": {
"items": {
"enabled": true,
"color": "rgb(255,0,0)",
"tolerance": 5,
"priority": 2,
"initialValue": false
},
"printArea": {
"enabled": false,
"color": "rgb(0,255,0)",
"tolerance": 20,
"priority": 3,
"initialValue": false
},
"safetyLines": {
"enabled": true,
"color": "rgb(0,0,255)",
"tolerance": 5,
"priority": 1,
"initialValue": true
}
}
}
Appearance
Snap lines are enabled by default. The initial appearance on the canvas is defined by the snapLinesVisible property in the common config. In the advanced config, the initialValue defines whether safety lines of the corresponding type are displayed when the canvas opens.
To allow your users to enable and disable snap lines through the Marking menu, you can use the snapLinesItemsCheckboxEnabled, snapLinesPrintAreaCheckboxEnabled, and snapLinesSafetyLinesCheckboxEnabled parameters of the BottomToolbar to toggle each type of the snap lines separately.
You can also use the color property to change the color of snap lines.
Tolerance
To control the distance between an object and a snap line, starting from where the object clings to the line, specify the tolerance property. This value is measured in pixels and works independently of the current zoom level.
Priority
In the advanced configuration, you can specify the priority of snap lines of a single type. In the case of overlapping tolerance zones, a snap line with the highest priority is displayed on the canvas. The higher this value, the higher the priority.
Override of Snap Lines for a Specific Product
You can also define custom settings for snap lines for a specific product through the IConfiguration interface.
See Also
Manual
IFrame API Reference | __label__pos | 0.997862 |
Take the 2-minute tour ×
TeX - LaTeX Stack Exchange is a question and answer site for users of TeX, LaTeX, ConTeXt, and related typesetting systems. It's 100% free, no registration required.
I'm trying to understand the basics of Knuth's line breaking algorithm. At the beginning of Chapter 12: Glue of his TeXbook, there is a figure like the one below.
My question is: where did those Stretchs and Shrinks come from?
Figure in Chapter 12 of the TeXbook
share|improve this question
1
It's just an example, where the glue between boxes is explicitly inserted as shown. The first can be specified as \hskip 9pt plus 3pt minus 1pt, assuming points as the unit of measure. – egreg May 27 '11 at 13:33
@egreg So you're saying these are just arbitrary values given by the user. – bellochio May 27 '11 at 13:41
@bellochio Yes, just to give a flavor of what happens, in a controlled case. – egreg May 27 '11 at 13:47
What would be those values if you didn't use the \hskip command ? – bellochio May 27 '11 at 13:59
@bellochio: What do you mean? If you don't put glue between boxes, there is none added. – egreg May 27 '11 at 14:14
1 Answer 1
up vote 17 down vote accepted
The example in the TeXbook has just arbitrary values; assuming units of points, it may can be emulated by the input
\def\example{%
\hbox to 5pt{\hrulefill}%
\hskip 9pt plus 3pt minus 1pt
\hbox to 6pt{\hrulefill}%
\hskip 9pt plus 6pt minus 2pt
\hbox to 3pt{\hrulefill}%
\hskip 12pt plus 0pt minus 0pt
\hbox to 8pt{\hrulefill}}
If you say \hbox{\example} the resulting box width will be 5+9+6+9+12+8=52 points. If you say \hbox to 58pt{\example}, the resulting box will be indeed 58pt wide, and the glue inside will stretch as explained with a 6/9 stretch ratio.
If you say \hbox to 51pt{\example}, the glue will shrink with a shrink ratio of 1/3, in order to get a 51pt wide box.
When you do a real paragraph, the glue is inserted by the spaces in the input. The amount of glue is font dependent: for example, with cmr10, each space will insert glue equivalent to saying
\hskip 3.33pt plus 1.67pt minus 1.11pt
(but there is the space factor to consider, that might change this amount in some places). The line breaking algorithm decides where each line starts and ends and what's done to each line is exactly analogous to the example before: the goal width is generally the \hsize and the glue will be set according to the rules outlined in the example.
The values for cmr10 can be found in Appendix F, page 433. For a general font one can see the amount of glue inserted by a normal space by saying
\skip0 = \fontdimen2\font plus \fontdimen3\font minus \fontdimen3\font
as in this context \font refers to the current font. With \showthe\skip0 you'll see the value for the interword glue.
share|improve this answer
Now is becoming more clear. Where did you get the values 3.33pt plus 1.67pt minus 1.11pt for the case where the glue is inserted automatically by the spaces in the line. Is there any Tex command that I can use to get these values ? – bellochio May 27 '11 at 16:04
Thanks for your help. Really appreciated this. – bellochio May 27 '11 at 16:51
@bellochio: The interword space depends on some \fontdimens. – Martin Schröder May 27 '11 at 20:24
@bellochio: something like \setbox0=\hbox{abc def} then \showbox0 and examine the log (or \begingroup\tracingall\showbox0\endgroup if you prefer seeing the result in the terminal and like me you are too lazy to figure out which one of TeX's tracing settings will do that for you. – Bruno Le Floch May 27 '11 at 21:26
Your Answer
discard
By posting your answer, you agree to the privacy policy and terms of service.
Not the answer you're looking for? Browse other questions tagged or ask your own question. | __label__pos | 0.797306 |
Sine Rule
The sincos and tan ratios, are helpful in establishing the values of sides and angles in a Right Angled Triangle.
But the functions can also help with calculations for other types of triangle.
One way is with use of the Sine Rule. Sometimes called the law of sines.
For a standard triangle, the "sine rule" is as follows.
Labelled triangle, included with sine rule
These relationships can be used when we already know:
- 2 sides of a triangle, and an angle opposite one the 2 sides.
or
- 1 side of a triangle, and any 2 of the 3 angles inside.
Sine Rule, Sides
Examples
(1.1)
Calculate the length of side h.
Length of triangle to be found with the Sine Rule
Solution
\\bf{\\frac{\\boldsymbol{\\tt h}}{sin(38^\\circ)}} = \\bf{\\frac{11}{sin(59^\\circ)}}
\\bf{\\frac{\\boldsymbol{\\tt h}}{sin(38^\\circ)}} = 12.8 ( × sin38° both sides )
h = 12.8 × sin(38°) = 7.9cm
(1.2)
For a fishing trip on a lake, a boat leaves PIER 1 on a bearing of 227°,
to the spot where fishing will commence.
After fishing has finished, the boat turns 335°, to head for shore, towards PIER 2, which is 30m from PIER 1.
How far did the boat travel from the FISHING SPOT back to shore at PIER 2.
Solution
Drawing up an illustration of the situation can be helpful.
Pier to a Fishing Spot
Fishing spot back to another pier
We can fill in the important parts of the triangle drawn in the right image.
The angle at PIER 1 to the fishing spot is 270° − 227° = 43°.
The angle at the Fishing Spot can be worked out in a similar way, but with a bit of extra help from symmetry for the first step.
Angles between pier and fishing spot
The right side part of the angle at the fishing spot is 47°.
Worked out from 90° − 43° at PIER 1.
The left side part of the angle is given by 360° − 335° = 25°.
So the whole angle at the Fishing Spot is 47° + 25° = 72°.
Thus the route taken for the fishing trip gives the following triangle.
Completed triangle of the route
Now:
\\bf{\\frac{\\tt a}{sin(43^\\circ)}} = \\bf{\\frac{30}{sin(72^\\circ)}}
\\bf{\\frac{\\tt a}{sin(43^\\circ)}} = 31.54
a = 31.54 × sin(43°) = 21.51m
The boat traveled 21.51 meters from the FISHING SPOT back to shore at PIER 2.
Sine Rule, Angles
Examples
(2.1)
Find the size of angle Q.
Triangle with an angle to be found
Solution
\\bf{\\frac{sin(37^\\circ)}{6}} = \\bf{\\frac{sin(Q)}{7}} ( × 7 both sides )
\\bf{\\frac{7 \\space \\times \\space sin(37^\\circ)}{7}} = sin(Q)
0.7 = sin(Q)
sin-1(0.7) = Q => Q = 44.4°
(2.2)
Find the size of angles Y and Z in the triangle below.
Triangle with 2 angles to find
Solution
\\bf{\\frac{sin(65^\\circ)}{11}} = \\bf{\\frac{sin(Z)}{7}} ( × 7 both sides )
\\bf{\\frac{7 \\space \\times \\space sin(65^\\circ)}{11}} = sin(Z)
0.58 = sin(Z)
sin-1(0.58) = Z => Z = 35.45°
Y = 180° − 65° − 35.45° = 84.55°
1. Home
2. ›
3. Basic Trigonometry
4. › Rule, Sine
Return to TOP of page
Recent Articles
1. Sketching Quadratic Graphs
May 31, 20 05:22 PM
Sketching Quadratic Graphs follows a standard approach that can be used each time we want to make a sketch of a quadratic.
Read More
2. Perimeter of Segment
May 04, 20 05:20 PM
A segment inside a circle has a perimeter as well as an area. Which amounts to an arc length plus a chord length to obtain perimeter of segment.
Read More
3. Simplifying Expressions with Exponents
Apr 23, 20 03:08 PM
Simplifying Expressions with Exponents is often required in Algebra, this page gives some clear examples of how to approach such situations.
Read More | __label__pos | 0.925747 |
Static vs Dynamic Typing: My Preference
There has been a vigourous debate in the couple of years running through the whole software development community on the merits of Dynamic vs Static typing.
When I was at uni in the mid 90’s, the static typing forces seemed dominant, but the tables have turned. Now dynamic typing is cool. Ruby, Groovy Python, Erlang, Clojure and Javascript are wowing everyone with their funky features and terseness. Sometimes it seems like all the smart people are doing it, while the mediocre corporate.programmers of the world plod along in statically typed Java, C# or C++.
Where do I stand?
Static Typing Forever!!!
I still love statically typed languages. For me, its the only way to fly.
The safety & correctness aspect of static typing is only a part of their value.The fundamental reason for typing is to put more of the intent of the code into the language. Thus requiring less knowledge be stored in the programmers head.
def writeToStream(stream)
stream.write(@content)
end
bytesWritten = envelope.writeToStream(filestream)
In this Ruby example, the programmer clearly intended “stream” to be a particular type of object. That is, stream does have a type, its just implicit in their head. Well then, why not use a language and toolset smart enough to understand type of ‘stream’? Why burden the programmers brain with sole responsibility for implementing the type system?
Yes, I’ve used Dynamic Typing in Anger
For 6 months Ive been working on a large commercial JRuby/Rails and heavy Javascript dynamic web site. Dynamically typed code all day long. Yes, you can stay DRY and keep the syntax clutter low. But Im tired of operating in the fog of partial certainty about what the objects Im woking with actually are and can do.
The challenge: Making Static Typing easier
I think the surging popularity of dynamic typing is symptomatic of the pain of the syntax-heavy static type systems in C++/Java/C#. But I would rather fix the pain and keep the types.
Type Inference is the answer. To those who favor dynamic types: have you looked at statically inferred-type language like Scala, Boo or Haskell?
2 Comments
1. David Kemp said,
June 19, 2008 at 9:31 pm
I agree. When writing new code, types may seem a chore, but when trying to use an API written by someone else, the type declarations really help. Type inference looks like a nice middle ground.
2. SoftwareDeveloper said,
May 15, 2009 at 9:17 pm
I agree 100%, dynamic typing will always come back and bite you when your project gets bigger (and older).
Given that 90% of development time goes to debugging and 10% to actual coding, it seems stupid to spend a a dime to save a nickel.
Leave a Reply
Fill in your details below or click an icon to log in:
WordPress.com Logo
You are commenting using your WordPress.com account. Log Out / Change )
Google photo
You are commenting using your Google account. Log Out / Change )
Twitter picture
You are commenting using your Twitter account. Log Out / Change )
Facebook photo
You are commenting using your Facebook account. Log Out / Change )
Connecting to %s
%d bloggers like this: | __label__pos | 0.780714 |
How Cross-Website Tracking Impacts Your Privacy and Security Online?
Have you ever noticed this? Your search for a laptop in Google and every other website you visit after that has laptop advertisements. Instagram and Facebook feeds are also filled with the same.
Have you ever wondered how this happens? This is through a straightforward practice called cross-website tracking.
Cross-website tracking is when web developers track you down as you move from one website to another. Knowing your preferences and searches, the feed of your websites is customized accordingly.
This may sound strange until we get to the bottom of this. So this article will explain everything about cross-website tracking and how it works. Let’s get started.
Table of Contents
1. Cross-website tracking: Definition
2. What is the need for Cross-website tracking?
3. How does Cross-website tracking works?
4. Privacy and security impacts of Cross-Website Tracking
5. Cons of cross-website tracking
6. Ways to stop cross-website tracking
7. Mitigating the Effects of Cross-Website Tracking
Cross-website Tracking: Definition
As the term suggests, cross-website tracking is when website developers track an individual’s behavior while using any website. Through this, one can even track the activities of a person moving from one website to another.
Trackers who observe your activity usually collect data from your web searches and history. The collected data could be your search history, the sites you visit, your clicks on the website, and so on.
When the websites you visit have been enabled, third-party trackers can share the data collected from users with third parties. The data collected is usually used to improve the user experience and to offer customization to all users.
Cross-website tracking may not be acceptable to all common people. But when questioned, web developers and companies sought to provide reasons such as improving the website, giving a better user experience, customization of products, etc.
There could be many more reasons, but is cross-website really required at present?
What is the need for Cross-website tracking?
There isn’t any high-end reason to support the purpose the reason of cross-website tracking by the website developers. It is obvious that this is used to monitor the behavior patterns of every user while using any website.
Need for cross-website tracking
Need for cross-website tracking
1. Advertising: Cross-website tracking allows advertisers to gather data about user's browsing habits and interests, which can be used to serve targeted ads. This enables advertisers to reach a more relevant audience, increasing the effectiveness of their advertising campaigns.
2. Personalization: By tracking user behavior across different websites, companies can create more personalized user experiences. For example, they can recommend products or services based on users' past purchases or browsing history.
3. Analytics: Cross-website tracking can provide valuable data for website owners and businesses, such as how users interact with their website, what pages are most popular, and how long users stay on their site.
4. Fraud prevention: Cross-website tracking can be used to detect fraudulent activity, such as bot traffic or click fraud. By monitoring user behavior across multiple sites, companies can identify patterns of suspicious activity and take action to prevent it.
5. User identification: Cross-website tracking can identify users across different devices and platforms, allowing companies to create a more unified view of their customers.
6. Affiliate marketing: Cross-website tracking is used in affiliate marketing to track referrals and commissions. By tracking users' activity across multiple sites, companies can accurately attribute referrals and ensure that affiliates are paid for their efforts.
How does Cross-website tracking work?
Now that we know what is being done under cross-website tracking let us look into how it works in reality. There are different types of such trackers being used:
• Cookies
• Invisible scrips
• IP address
• Website tracking devices
• Website logs
• Browsing history
The information collected from these trackers is the basis of tracking. The data is stored and used for providing the same set of preferences in your further searches and feed.
When a company wishes to track your searches, then they implant the cookie files or invisible scripts onto their websites. As soon as you enter their website and accept all the cookie files, the tracking begins, and it continues to your further searches.
On observing your other search patterns and history, the company gets an idea of your preferences. Based on all the collected information, digital agencies start sending advertisements to personalize your further browsing experiences.
We would have also noticed share buttons on the pages we visit. The share buttons are embedded to obtain the page analytics, but apart from that, for every click, a piece of information is shared with the owners of the page.
Likewise, the share, comment, and like buttons in social media buttons are also embedded with trackers to customize your feed accordingly.
Types of trackers
There are certain types of trackers that have been implanted in websites that are used to collect information effectively. The types of trackers are as follows:
Types of trackers used
Types of trackers used
1. Cookies
Every time you enter a new website, you have a popup message that shows, “This website uses cookies to optimize our website and our services; accept all cookies or decline.” That’s a kind of tracker that you allow and lets the digital agencies track your search history.
Cookies are like hints that you leave every time you visit a website. The web servers collect these hits, gather and make them in the form of a log which is being exploited for web optimization and customization.
What exactly happens when you start accepting cookies is that a piece of your browsing data, such as search patterns, is transferred from your data to the web server and is stored. This cookie data stores and remembers the data, which is used in the later part of your web searches, ad advertisements, or popups.
There are different types of cookies that are used for various functions in a web server.
Types of cookies
Types of cookies
• First-party cookies: This type of cookie is being implanted on the website by the domain and the owner.
• Third-party cookies: This is being embedded in the domain of the website as well as from remote domains. They can also collect data from your browsing patterns and store it.
• Persistent cookies: This type of cookie is a matter of concern because they remain in your server even after exiting the website. Persistent cookie track you down to other websites and collect data to send them to the web servers.
2. Web beacon
The next type of tracker is called the web beacon, which is a graphic image that is embedded in the website to track its users. It's a single-pixel (1x1 pixel) clear file that does function similarly to a website cookie.
The ad recommendations that are present are because of the web beacons. The role of web beacons is to travel and track our activities from one website to another. By doing so, from the collected data, new advertisements are displayed based on our browsing preferences.
This type of tracker is used to help advertising agencies. Using web beacons, companies can also track the success of their advertising campaign and obtain analytics.
Apart from this, when a web beacon is embedded in a spam email, then when you open that email, the beacon can track your IP address. From this, similar kinds of emails are sent to us from the collected data.
3. Canvas fingerprinting
The before mentioned trackers were used to collect statistical information related to the browsing history of a user. When the same browsing pattern is converted to a graphical representation, then it is called Canvas fingerprinting.
When canvas fingerprinting is enabled in your browser, then an image is drawn, which acts as a graphics card. This graphics card is unique for every user and periodically monitors the browsing behavior of the users. Since this differs for every individual, it is referred to as a fingerprint.
Privacy and security impacts of Cross-Website Tracking
Cross-website tracking can have significant impacts on both privacy and security online. Here are some key points to consider:
Privacy Impacts:
• Cross-website tracking can reveal a user's browsing habits, personal preferences, and other sensitive information, which can be used to create detailed profiles and targeted advertisements.
• The use of third-party cookies and other tracking technologies can allow companies and advertisers to track users across multiple websites without their explicit consent or knowledge.
• Data collected through cross-website tracking can be vulnerable to data breaches, hacking, and other forms of cyber attacks, putting users' personal information at risk.
• Cross-website tracking can also raise ethical concerns around the collection and use of personal data and may be perceived as a violation of users' privacy rights.
Security Impacts:
• Cross-website tracking can be exploited by malicious actors for phishing attacks, malware distribution, or other scams, as they can use the collected data to target specific individuals with highly personalized attacks.
• Tracking data can also be used to build detailed profiles of users, which can be sold on the dark web and used for identity theft or other fraudulent activities.
• The use of third-party cookies and other tracking technologies can create vulnerabilities that can be exploited by hackers to gain unauthorized access to a user's device or account.
Cons of cross-website tracking
There could be various reasons to justify the implementation of cross-website tracking. But still, it is related to the privacy of every user, so closer observation and importance should be given to its limits.
Every individual visits various websites every day, and letting the web owners track is like allowing multiple agencies to track your browsing pattern in a day. Not knowing how much data is being collected is a matter of concern.
The users aren’t very transparent about how their data is being used. Every piece of information collected requires consent, and these trackers are embedded automatically, which tests privacy-related issues.
The next biggest problem is third-party cookies. The session and persistent cookies present in the browser expire after the expiration date. But the third-party cookies stay in the browser, and the information is shared with other parties except for the domain.
To the rules and regulations of the General Data Protection Regulation (GDPR), it is mandatory for digital agencies to obtain consent from users before tracking their browsing analytics.
Ways to stop cross-website tracking
There is a method to prevent the web servers to track your browsing pattern from google chrome. The steps are as follows:
• Open the Chrome app on your desktop
• On the right corner of the screen, you will find three dots.
• Click the settings option.
• Go to the privacy and security option and choose cookies and other site data.
• Click "clear cookies and site data when you close all windows".
• By doing so, you can prevent cookies to track your device.
Mitigating the Effects of Cross-Website Tracking
To mitigate the effects of cross-website tracking, here are some steps that individuals can take to protect their privacy and security online:
1. Use Privacy-Focused Browsers and Extensions: Some web browsers, such as Firefox and Brave, have built-in privacy features that block third-party cookies and prevent cross-website tracking. Additionally, there are browser extensions, like Privacy Badger and uBlock Origin, that can also help block tracking technologies.
2. Disable Third-Party Cookies: Users can disable third-party cookies in their web browser settings to prevent websites from tracking their activity across the web. However, some websites may not function properly without cookies, so users may need to enable them on a case-by-case basis.
3. Use Private Browsing Mode: Most web browsers have a private browsing mode that does not save browsing history, cookies, or other data. This can be a good option for users who want to prevent websites from tracking their activity.
4. Limit the Information You Share Online: Users can limit the amount of personal information they share online, including on social media and other websites. This can help reduce the amount of data that is collected and used for cross-website tracking.
5. Be Cautious of Clicking on Links or Downloading Attachments: Cross-website tracking data can be used to create highly personalized phishing attacks or other scams, so users should be cautious when clicking on links or downloading attachments from unknown sources.
6. Support Industry Efforts to Improve Privacy: Users can support industry efforts to improve privacy by using services and products that prioritize user privacy and advocating for stronger regulations and standards around cross-website tracking.
Sum up
In recent times everybody expects customization and personalization of products. We also demand easier and simpler living with the ease of the internet and website innovations.
This interest of ours has let web owners and digital agencies deliver what is desired by every individual. On this note, cross-website tracking is justifiable from their perspective. But for certain users, it can be invading their personal space.
Unless it is in a limited amount, the tracking can be used for building our feed. But when it starts to violate privacy, then it is a serious issue, and action is being taken. So know what cookies you are accepting and change them to avoid further problems.
Boost your Testing Efficiency with UI Inspector
UI Inspector is a cloud-based cross-browser testing platform that allows developers and testers to test their web applications on a wide range of real devices and browsers. With Ui Inspector, teams can ensure their applications work seamlessly across multiple platforms, browsers, and devices and provide a better user experience for their customers.
It has an intuitive interface, which requires no coding skills to operate. This allows testers and developers of all skill levels to create and execute automated tests quickly and easily.
Test Automation Recording
Test Automation Recording
UI Inspector provides an efficient and reliable solution for cross-browser testing, helping teams deliver high-quality applications that work seamlessly across all devices and platforms. Its extensive device and browser coverage, seamless integrations, and range of features make it a valuable tool for any development or testing team looking to improve its testing process and deliver better user experiences.
Our solutions include Test Automation, API testing, Data-driven testing, Cross browser testing, etc., to make the testing procedures easier. Find out the suitable testing tool for your software.
Sign up now for UI Inspector's 14-day free trial offer and experience the power of its features to discover limitless possibilities!
Vaishnavi
Vaishnavi
I craft engaging, jargon-free content that demystifies complex technical topics.
Effortless Automated Testing at Scale.
Ui Inspector simplifies the automation of your testing process by identifying anomalies, detecting errors, and performing parallel testing. | __label__pos | 0.704998 |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.