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Update app.py
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app.py
CHANGED
@@ -1,91 +1,208 @@
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import streamlit as st
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import pandas as pd
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import plotly.express as px
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import requests
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import json
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from datetime import datetime
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# تابع برای خواندن دادهها
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@st.cache_data
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def
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import streamlit as st
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import pandas as pd
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import numpy as np
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import ee
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import geemap
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import geopandas as gpd
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from datetime import datetime, timedelta
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import folium
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from streamlit_folium import folium_static
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import plotly.express as px
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import io
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import requests
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# Initialize Earth Engine
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def initialize_ee():
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try:
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service_account = 'earth-engine-service-account@ee-esmaeilkiani1387.iam.gserviceaccount.com'
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credentials = ee.ServiceAccountCredentials(service_account, 'ee-esmaeilkiani1387-1b2c5e812a1d.json')
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ee.Initialize(credentials)
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return True
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except Exception as e:
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st.error(f"خطا در راهاندازی Earth Engine: {str(e)}")
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return False
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# Set page config
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st.set_page_config(
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page_title="تحلیل پوشش گیاهی مزارع",
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layout="wide",
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initial_sidebar_state="expanded"
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)
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# Custom styling
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st.markdown("""
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<style>
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.main {
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background-color: #f5f5f5;
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}
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.stButton>button {
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background-color: #2E4057;
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color: white;
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border-radius: 8px;
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padding: 0.75rem 1.5rem;
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font-weight: 600;
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}
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.stSelectbox {
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background-color: white;
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border-radius: 8px;
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}
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.plot-container {
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background-color: white;
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border-radius: 15px;
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padding: 1rem;
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box-shadow: 0 4px 6px rgba(0,0,0,0.1);
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}
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body {
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direction: rtl;
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font-family: 'Vazirmatn', sans-serif;
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}
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</style>
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""", unsafe_allow_html=True)
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# Constants
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DEFAULT_LOCATION = {
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"latitude": 31.534442,
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"longitude": 48.724416,
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"name": "شرکت کشت و صنعت نیشکر دهخدا"
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}
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NDVI_PALETTE = [
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'#d73027', '#f46d43', '#fdae61', '#fee08b', '#ffffbf',
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'#d9ef8b', '#a6d96a', '#66bd63', '#1a9850'
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]
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@st.cache_data
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def load_farm_data():
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try:
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CSV_URL = "https://hebbkx1anhila5yf.public.blob.vercel-storage.com/tableConvert.com_wftamx-1UC3HLMMTZ9WN2ePEhHQLU2Knn0ACl.csv"
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response = requests.get(CSV_URL)
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response.raise_for_status()
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csv_content = response.content.decode('utf-8')
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df = pd.read_csv(io.StringIO(csv_content))
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return df
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except Exception as e:
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st.error(f"خطا در بارگیری دادههای مزارع: {str(e)}")
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return None
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def calculate_ndvi(image):
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ndvi = image.normalizedDifference(['B8', 'B4']).rename('NDVI')
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return image.addBands(ndvi)
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def get_sentinel_collection(start_date, end_date, geometry):
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return (ee.ImageCollection('COPERNICUS/S2_SR')
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.filterDate(start_date, end_date)
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.filterBounds(geometry)
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.map(calculate_ndvi)
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.select('NDVI'))
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def create_ndvi_visualization(start_date, end_date, wheat_only=False):
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try:
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# Create geometry from default location
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point = ee.Geometry.Point([DEFAULT_LOCATION['longitude'], DEFAULT_LOCATION['latitude']])
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region = point.buffer(5000) # 5km buffer
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# Get Sentinel-2 collection
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collection = get_sentinel_collection(start_date, end_date, region)
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# Calculate mean NDVI
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ndvi = collection.mean()
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# Visualization parameters
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vis_params = {
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'min': -1,
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'max': 1,
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'palette': NDVI_PALETTE
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}
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if wheat_only:
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# Load wheat farm locations
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farms_df = load_farm_data()
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wheat_farms = farms_df[farms_df['crop_type'] == 'wheat']
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# Create mask for wheat farms
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wheat_mask = ee.FeatureCollection(
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wheat_farms.apply(
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lambda x: ee.Feature(
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ee.Geometry.Point([x['longitude'], x['latitude']])
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),
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axis=1
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).tolist()
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).geometry().buffer(100) # 100m buffer around wheat farms
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# Apply mask
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ndvi = ndvi.updateMask(wheat_mask)
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# Create the map
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Map = geemap.Map(center=[DEFAULT_LOCATION['latitude'], DEFAULT_LOCATION['longitude']], zoom=12)
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Map.add_layer(ndvi, vis_params, 'NDVI')
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# Add legend
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Map.add_legend(title="NDVI Values", colors=NDVI_PALETTE,
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labels=[f"{i:.1f}" for i in np.linspace(-1, 1, len(NDVI_PALETTE))])
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return Map
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except Exception as e:
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st.error(f"خطا در محاسبه NDVI: {str(e)}")
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return None
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def main():
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# Initialize Earth Engine
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if not initialize_ee():
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return
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st.title("تحلیل شاخص NDVI مزارع")
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# Date selection
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col1, col2 = st.columns(2)
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with col1:
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start_date = st.date_input(
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"تاریخ شروع",
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datetime.now() - timedelta(days=30),
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help="تاریخ شروع برای محاسبه NDVI"
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)
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with col2:
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end_date = st.date_input(
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"تاریخ پایان",
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datetime.now(),
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help="تاریخ پایان برای محاسبه NDVI"
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)
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# Wheat farms filter
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wheat_only = st.checkbox("نمایش فقط مزارع گندم", help="فیلتر کردن نقشه برای نمایش فقط مزارع گندم")
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if st.button("محاسبه NDVI"):
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with st.spinner("در حال محاسبه NDVI..."):
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start_time = datetime.now()
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# Create NDVI visualization
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Map = create_ndvi_visualization(
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start_date.strftime("%Y-%m-%d"),
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end_date.strftime("%Y-%m-%d"),
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wheat_only
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)
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if Map:
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# Display the map
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Map.to_streamlit(height=600)
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# Display processing time
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end_time = datetime.now()
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processing_time = (end_time - start_time).total_seconds()
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st.info(f"زمان پردازش: {processing_time:.2f} ثانیه")
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# Display NDVI information
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st.markdown("""
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<div class="plot-container">
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<h3>راهنمای تفسیر NDVI</h3>
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<ul>
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<li>مقادیر نزدیک به 1 (سبز تیره): پوشش گیاهی متراکم</li>
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<li>مقادیر متوسط (زرد تا سبز روشن): پوشش گیاهی متوسط</li>
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<li>مقادیر نزدیک به 0 (نارنجی): پوشش گیاهی کم یا خاک لخت</li>
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<li>مقادیر منفی (قرمز): آب یا ابر</li>
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</ul>
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</div>
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""", unsafe_allow_html=True)
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if __name__ == "__main__":
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main()
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