<html><!-- Created using the cpp_pretty_printer from the dlib C++ library. See http://dlib.net for updates. --><head><title>dlib C++ Library - drectangle.h</title></head><body bgcolor='white'><pre>
<font color='#009900'>// Copyright (C) 2015 Davis E. King (davis@dlib.net)
</font><font color='#009900'>// License: Boost Software License See LICENSE.txt for the full license.
</font><font color='#0000FF'>#ifndef</font> DLIB_DRECTANGLe_
<font color='#0000FF'>#define</font> DLIB_DRECTANGLe_
<font color='#0000FF'>#include</font> "<a style='text-decoration:none' href='drectangle_abstract.h.html'>drectangle_abstract.h</a>"
<font color='#0000FF'>#include</font> "<a style='text-decoration:none' href='rectangle.h.html'>rectangle.h</a>"
<font color='#0000FF'>namespace</font> dlib
<b>{</b>
<font color='#0000FF'>class</font> drectangle;
drectangle <b><a name='operator'></a>operator</b><font color='#5555FF'>*</font> <font face='Lucida Console'>(</font>
<font color='#0000FF'>const</font> drectangle<font color='#5555FF'>&</font> rect,
<font color='#0000FF'>const</font> <font color='#0000FF'><u>double</u></font><font color='#5555FF'>&</font> scale
<font face='Lucida Console'>)</font>;
<font color='#009900'>// ----------------------------------------------------------------------------------------
</font>
<font color='#0000FF'>class</font> <b><a name='drectangle'></a>drectangle</b>
<b>{</b>
<font color='#0000FF'>public</font>:
<b><a name='drectangle'></a>drectangle</b> <font face='Lucida Console'>(</font>
<font face='Lucida Console'>)</font> : l<font face='Lucida Console'>(</font><font color='#979000'>0</font><font face='Lucida Console'>)</font>, t<font face='Lucida Console'>(</font><font color='#979000'>0</font><font face='Lucida Console'>)</font>, r<font face='Lucida Console'>(</font><font color='#5555FF'>-</font><font color='#979000'>1</font><font face='Lucida Console'>)</font>, b<font face='Lucida Console'>(</font><font color='#5555FF'>-</font><font color='#979000'>1</font><font face='Lucida Console'>)</font> <b>{</b><b>}</b>
<b><a name='drectangle'></a>drectangle</b> <font face='Lucida Console'>(</font>
<font color='#0000FF'><u>double</u></font> l_,
<font color='#0000FF'><u>double</u></font> t_,
<font color='#0000FF'><u>double</u></font> r_,
<font color='#0000FF'><u>double</u></font> b_
<font face='Lucida Console'>)</font> :
l<font face='Lucida Console'>(</font>l_<font face='Lucida Console'>)</font>,
t<font face='Lucida Console'>(</font>t_<font face='Lucida Console'>)</font>,
r<font face='Lucida Console'>(</font>r_<font face='Lucida Console'>)</font>,
b<font face='Lucida Console'>(</font>b_<font face='Lucida Console'>)</font>
<b>{</b><b>}</b>
<b><a name='drectangle'></a>drectangle</b> <font face='Lucida Console'>(</font>
<font color='#0000FF'>const</font> dlib::vector<font color='#5555FF'><</font><font color='#0000FF'><u>double</u></font>,<font color='#979000'>2</font><font color='#5555FF'>></font><font color='#5555FF'>&</font> p
<font face='Lucida Console'>)</font> :
l<font face='Lucida Console'>(</font>p.x<font face='Lucida Console'>(</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>,
t<font face='Lucida Console'>(</font>p.y<font face='Lucida Console'>(</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>,
r<font face='Lucida Console'>(</font>p.x<font face='Lucida Console'>(</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>,
b<font face='Lucida Console'>(</font>p.y<font face='Lucida Console'>(</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>
<b>{</b>
<b>}</b>
<font color='#0000FF'>template</font> <font color='#5555FF'><</font><font color='#0000FF'>typename</font> T, <font color='#0000FF'>typename</font> U<font color='#5555FF'>></font>
<b><a name='drectangle'></a>drectangle</b> <font face='Lucida Console'>(</font>
<font color='#0000FF'>const</font> vector<font color='#5555FF'><</font>T,<font color='#979000'>2</font><font color='#5555FF'>></font><font color='#5555FF'>&</font> p1,
<font color='#0000FF'>const</font> vector<font color='#5555FF'><</font>U,<font color='#979000'>2</font><font color='#5555FF'>></font><font color='#5555FF'>&</font> p2
<font face='Lucida Console'>)</font>
<b>{</b>
<font color='#5555FF'>*</font><font color='#0000FF'>this</font> <font color='#5555FF'>=</font> <font color='#BB00BB'>drectangle</font><font face='Lucida Console'>(</font>p1<font face='Lucida Console'>)</font> <font color='#5555FF'>+</font> <font color='#BB00BB'>drectangle</font><font face='Lucida Console'>(</font>p2<font face='Lucida Console'>)</font>;
<b>}</b>
<b><a name='drectangle'></a>drectangle</b> <font face='Lucida Console'>(</font>
<font color='#0000FF'>const</font> rectangle<font color='#5555FF'>&</font> rect
<font face='Lucida Console'>)</font> : l<font face='Lucida Console'>(</font>rect.left<font face='Lucida Console'>(</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>,
t<font face='Lucida Console'>(</font>rect.top<font face='Lucida Console'>(</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>,
r<font face='Lucida Console'>(</font>rect.right<font face='Lucida Console'>(</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>,
b<font face='Lucida Console'>(</font>rect.bottom<font face='Lucida Console'>(</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <b>{</b><b>}</b>
<b><a name='operator'></a>operator</b> <b><a name='rectangle'></a>rectangle</b> <font face='Lucida Console'>(</font>
<font face='Lucida Console'>)</font> <font color='#0000FF'>const</font>
<b>{</b>
<font color='#0000FF'>return</font> <font color='#BB00BB'>rectangle</font><font face='Lucida Console'>(</font><font face='Lucida Console'>(</font><font color='#0000FF'><u>long</u></font><font face='Lucida Console'>)</font>std::<font color='#BB00BB'>floor</font><font face='Lucida Console'>(</font>l<font color='#5555FF'>+</font><font color='#979000'>0.5</font><font face='Lucida Console'>)</font>,
<font face='Lucida Console'>(</font><font color='#0000FF'><u>long</u></font><font face='Lucida Console'>)</font>std::<font color='#BB00BB'>floor</font><font face='Lucida Console'>(</font>t<font color='#5555FF'>+</font><font color='#979000'>0.5</font><font face='Lucida Console'>)</font>,
<font face='Lucida Console'>(</font><font color='#0000FF'><u>long</u></font><font face='Lucida Console'>)</font>std::<font color='#BB00BB'>floor</font><font face='Lucida Console'>(</font>r<font color='#5555FF'>+</font><font color='#979000'>0.5</font><font face='Lucida Console'>)</font>,
<font face='Lucida Console'>(</font><font color='#0000FF'><u>long</u></font><font face='Lucida Console'>)</font>std::<font color='#BB00BB'>floor</font><font face='Lucida Console'>(</font>b<font color='#5555FF'>+</font><font color='#979000'>0.5</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>;
<b>}</b>
<font color='#0000FF'><u>double</u></font> <b><a name='left'></a>left</b><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <font color='#0000FF'>const</font> <b>{</b> <font color='#0000FF'>return</font> l; <b>}</b>
<font color='#0000FF'><u>double</u></font> <b><a name='top'></a>top</b><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <font color='#0000FF'>const</font> <b>{</b> <font color='#0000FF'>return</font> t; <b>}</b>
<font color='#0000FF'><u>double</u></font> <b><a name='right'></a>right</b><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <font color='#0000FF'>const</font> <b>{</b> <font color='#0000FF'>return</font> r; <b>}</b>
<font color='#0000FF'><u>double</u></font> <b><a name='bottom'></a>bottom</b><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <font color='#0000FF'>const</font> <b>{</b> <font color='#0000FF'>return</font> b; <b>}</b>
<font color='#0000FF'><u>double</u></font><font color='#5555FF'>&</font> <b><a name='left'></a>left</b><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <b>{</b> <font color='#0000FF'>return</font> l; <b>}</b>
<font color='#0000FF'><u>double</u></font><font color='#5555FF'>&</font> <b><a name='top'></a>top</b><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <b>{</b> <font color='#0000FF'>return</font> t; <b>}</b>
<font color='#0000FF'><u>double</u></font><font color='#5555FF'>&</font> <b><a name='right'></a>right</b><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <b>{</b> <font color='#0000FF'>return</font> r; <b>}</b>
<font color='#0000FF'><u>double</u></font><font color='#5555FF'>&</font> <b><a name='bottom'></a>bottom</b><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <b>{</b> <font color='#0000FF'>return</font> b; <b>}</b>
<font color='#0000FF'>const</font> dlib::vector<font color='#5555FF'><</font><font color='#0000FF'><u>double</u></font>,<font color='#979000'>2</font><font color='#5555FF'>></font> <b><a name='tl_corner'></a>tl_corner</b> <font face='Lucida Console'>(</font>
<font face='Lucida Console'>)</font> <font color='#0000FF'>const</font> <b>{</b> <font color='#0000FF'>return</font> dlib::vector<font color='#5555FF'><</font><font color='#0000FF'><u>double</u></font>,<font color='#979000'>2</font><font color='#5555FF'>></font><font face='Lucida Console'>(</font><font color='#BB00BB'>left</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>, <font color='#BB00BB'>top</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <b>}</b>
<font color='#0000FF'>const</font> dlib::vector<font color='#5555FF'><</font><font color='#0000FF'><u>double</u></font>,<font color='#979000'>2</font><font color='#5555FF'>></font> <b><a name='bl_corner'></a>bl_corner</b> <font face='Lucida Console'>(</font>
<font face='Lucida Console'>)</font> <font color='#0000FF'>const</font> <b>{</b> <font color='#0000FF'>return</font> dlib::vector<font color='#5555FF'><</font><font color='#0000FF'><u>double</u></font>,<font color='#979000'>2</font><font color='#5555FF'>></font><font face='Lucida Console'>(</font><font color='#BB00BB'>left</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>, <font color='#BB00BB'>bottom</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <b>}</b>
<font color='#0000FF'>const</font> dlib::vector<font color='#5555FF'><</font><font color='#0000FF'><u>double</u></font>,<font color='#979000'>2</font><font color='#5555FF'>></font> <b><a name='tr_corner'></a>tr_corner</b> <font face='Lucida Console'>(</font>
<font face='Lucida Console'>)</font> <font color='#0000FF'>const</font> <b>{</b> <font color='#0000FF'>return</font> dlib::vector<font color='#5555FF'><</font><font color='#0000FF'><u>double</u></font>,<font color='#979000'>2</font><font color='#5555FF'>></font><font face='Lucida Console'>(</font><font color='#BB00BB'>right</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>, <font color='#BB00BB'>top</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <b>}</b>
<font color='#0000FF'>const</font> dlib::vector<font color='#5555FF'><</font><font color='#0000FF'><u>double</u></font>,<font color='#979000'>2</font><font color='#5555FF'>></font> <b><a name='br_corner'></a>br_corner</b> <font face='Lucida Console'>(</font>
<font face='Lucida Console'>)</font> <font color='#0000FF'>const</font> <b>{</b> <font color='#0000FF'>return</font> dlib::vector<font color='#5555FF'><</font><font color='#0000FF'><u>double</u></font>,<font color='#979000'>2</font><font color='#5555FF'>></font><font face='Lucida Console'>(</font><font color='#BB00BB'>right</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>, <font color='#BB00BB'>bottom</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <b>}</b>
<font color='#0000FF'><u>double</u></font> <b><a name='width'></a>width</b> <font face='Lucida Console'>(</font>
<font face='Lucida Console'>)</font> <font color='#0000FF'>const</font>
<b>{</b>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font><font color='#BB00BB'>is_empty</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>
<font color='#0000FF'>return</font> <font color='#979000'>0</font>;
<font color='#0000FF'>else</font>
<font color='#0000FF'>return</font> r <font color='#5555FF'>-</font> l <font color='#5555FF'>+</font> <font color='#979000'>1</font>;
<b>}</b>
<font color='#0000FF'><u>double</u></font> <b><a name='height'></a>height</b> <font face='Lucida Console'>(</font>
<font face='Lucida Console'>)</font> <font color='#0000FF'>const</font>
<b>{</b>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font><font color='#BB00BB'>is_empty</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>
<font color='#0000FF'>return</font> <font color='#979000'>0</font>;
<font color='#0000FF'>else</font>
<font color='#0000FF'>return</font> b <font color='#5555FF'>-</font> t <font color='#5555FF'>+</font> <font color='#979000'>1</font>;
<b>}</b>
<font color='#0000FF'><u>double</u></font> <b><a name='area'></a>area</b> <font face='Lucida Console'>(</font>
<font face='Lucida Console'>)</font> <font color='#0000FF'>const</font>
<b>{</b>
<font color='#0000FF'>return</font> <font color='#BB00BB'>width</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font><font color='#5555FF'>*</font><font color='#BB00BB'>height</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>;
<b>}</b>
<font color='#0000FF'><u>bool</u></font> <b><a name='is_empty'></a>is_empty</b> <font face='Lucida Console'>(</font>
<font face='Lucida Console'>)</font> <font color='#0000FF'>const</font> <b>{</b> <font color='#0000FF'>return</font> <font face='Lucida Console'>(</font>t <font color='#5555FF'>></font> b <font color='#5555FF'>|</font><font color='#5555FF'>|</font> l <font color='#5555FF'>></font> r<font face='Lucida Console'>)</font>; <b>}</b>
drectangle <b><a name='operator'></a>operator</b> <font color='#5555FF'>+</font> <font face='Lucida Console'>(</font>
<font color='#0000FF'>const</font> drectangle<font color='#5555FF'>&</font> rhs
<font face='Lucida Console'>)</font> <font color='#0000FF'>const</font>
<b>{</b>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>rhs.<font color='#BB00BB'>is_empty</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>
<font color='#0000FF'>return</font> <font color='#5555FF'>*</font><font color='#0000FF'>this</font>;
<font color='#0000FF'>else</font> <font color='#0000FF'>if</font> <font face='Lucida Console'>(</font><font color='#BB00BB'>is_empty</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>
<font color='#0000FF'>return</font> rhs;
<font color='#0000FF'>return</font> <font color='#BB00BB'>drectangle</font> <font face='Lucida Console'>(</font>
std::<font color='#BB00BB'>min</font><font face='Lucida Console'>(</font>l,rhs.l<font face='Lucida Console'>)</font>,
std::<font color='#BB00BB'>min</font><font face='Lucida Console'>(</font>t,rhs.t<font face='Lucida Console'>)</font>,
std::<font color='#BB00BB'>max</font><font face='Lucida Console'>(</font>r,rhs.r<font face='Lucida Console'>)</font>,
std::<font color='#BB00BB'>max</font><font face='Lucida Console'>(</font>b,rhs.b<font face='Lucida Console'>)</font>
<font face='Lucida Console'>)</font>;
<b>}</b>
drectangle <b><a name='intersect'></a>intersect</b> <font face='Lucida Console'>(</font>
<font color='#0000FF'>const</font> drectangle<font color='#5555FF'>&</font> rhs
<font face='Lucida Console'>)</font> <font color='#0000FF'>const</font>
<b>{</b>
<font color='#0000FF'>return</font> <font color='#BB00BB'>drectangle</font> <font face='Lucida Console'>(</font>
std::<font color='#BB00BB'>max</font><font face='Lucida Console'>(</font>l,rhs.l<font face='Lucida Console'>)</font>,
std::<font color='#BB00BB'>max</font><font face='Lucida Console'>(</font>t,rhs.t<font face='Lucida Console'>)</font>,
std::<font color='#BB00BB'>min</font><font face='Lucida Console'>(</font>r,rhs.r<font face='Lucida Console'>)</font>,
std::<font color='#BB00BB'>min</font><font face='Lucida Console'>(</font>b,rhs.b<font face='Lucida Console'>)</font>
<font face='Lucida Console'>)</font>;
<b>}</b>
<font color='#0000FF'><u>bool</u></font> <b><a name='contains'></a>contains</b> <font face='Lucida Console'>(</font>
<font color='#0000FF'>const</font> dlib::vector<font color='#5555FF'><</font><font color='#0000FF'><u>double</u></font>,<font color='#979000'>2</font><font color='#5555FF'>></font><font color='#5555FF'>&</font> p
<font face='Lucida Console'>)</font> <font color='#0000FF'>const</font>
<b>{</b>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>p.<font color='#BB00BB'>x</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <font color='#5555FF'><</font> l <font color='#5555FF'>|</font><font color='#5555FF'>|</font> p.<font color='#BB00BB'>x</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <font color='#5555FF'>></font> r <font color='#5555FF'>|</font><font color='#5555FF'>|</font> p.<font color='#BB00BB'>y</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <font color='#5555FF'><</font> t <font color='#5555FF'>|</font><font color='#5555FF'>|</font> p.<font color='#BB00BB'>y</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <font color='#5555FF'>></font> b<font face='Lucida Console'>)</font>
<font color='#0000FF'>return</font> <font color='#979000'>false</font>;
<font color='#0000FF'>return</font> <font color='#979000'>true</font>;
<b>}</b>
<font color='#0000FF'><u>bool</u></font> <b><a name='contains'></a>contains</b> <font face='Lucida Console'>(</font>
<font color='#0000FF'>const</font> drectangle<font color='#5555FF'>&</font> rect
<font face='Lucida Console'>)</font> <font color='#0000FF'>const</font>
<b>{</b>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>rect.<font color='#BB00BB'>is_empty</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>
<font color='#0000FF'>return</font> <font color='#979000'>true</font>;
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>l <font color='#5555FF'><</font><font color='#5555FF'>=</font> rect.<font color='#BB00BB'>left</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font><font color='#5555FF'>&</font>
r <font color='#5555FF'>></font><font color='#5555FF'>=</font> rect.<font color='#BB00BB'>right</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font><font color='#5555FF'>&</font>
t <font color='#5555FF'><</font><font color='#5555FF'>=</font> rect.<font color='#BB00BB'>top</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font><font color='#5555FF'>&</font>
b <font color='#5555FF'>></font><font color='#5555FF'>=</font> rect.<font color='#BB00BB'>bottom</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>
<font color='#0000FF'>return</font> <font color='#979000'>true</font>;
<font color='#0000FF'>return</font> <font color='#979000'>false</font>;
<b>}</b>
drectangle<font color='#5555FF'>&</font> <b><a name='operator'></a>operator</b> <font color='#5555FF'>*</font><font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>
<font color='#0000FF'>const</font> <font color='#0000FF'><u>double</u></font><font color='#5555FF'>&</font> scale
<font face='Lucida Console'>)</font>
<b>{</b>
<font color='#5555FF'>*</font><font color='#0000FF'>this</font> <font color='#5555FF'>=</font> <font color='#5555FF'>*</font><font color='#0000FF'>this</font><font color='#5555FF'>*</font>scale;
<font color='#0000FF'>return</font> <font color='#5555FF'>*</font><font color='#0000FF'>this</font>;
<b>}</b>
drectangle<font color='#5555FF'>&</font> <b><a name='operator'></a>operator</b> <font color='#5555FF'>/</font><font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>
<font color='#0000FF'>const</font> <font color='#0000FF'><u>double</u></font><font color='#5555FF'>&</font> scale
<font face='Lucida Console'>)</font>
<b>{</b>
<font color='#5555FF'>*</font><font color='#0000FF'>this</font> <font color='#5555FF'>=</font> <font color='#5555FF'>*</font><font color='#0000FF'>this</font><font color='#5555FF'>*</font><font face='Lucida Console'>(</font><font color='#979000'>1.0</font><font color='#5555FF'>/</font>scale<font face='Lucida Console'>)</font>;
<font color='#0000FF'>return</font> <font color='#5555FF'>*</font><font color='#0000FF'>this</font>;
<b>}</b>
drectangle<font color='#5555FF'>&</font> <b><a name='operator'></a>operator</b> <font color='#5555FF'>+</font><font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>
<font color='#0000FF'>const</font> dlib::vector<font color='#5555FF'><</font><font color='#0000FF'><u>double</u></font>,<font color='#979000'>2</font><font color='#5555FF'>></font><font color='#5555FF'>&</font> p
<font face='Lucida Console'>)</font>
<b>{</b>
<font color='#5555FF'>*</font><font color='#0000FF'>this</font> <font color='#5555FF'>=</font> <font color='#5555FF'>*</font><font color='#0000FF'>this</font> <font color='#5555FF'>+</font> <font color='#BB00BB'>drectangle</font><font face='Lucida Console'>(</font>p<font face='Lucida Console'>)</font>;
<font color='#0000FF'>return</font> <font color='#5555FF'>*</font><font color='#0000FF'>this</font>;
<b>}</b>
<font color='#0000FF'><u>bool</u></font> <b><a name='operator'></a>operator</b><font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>
<font color='#0000FF'>const</font> drectangle<font color='#5555FF'>&</font> rect
<font face='Lucida Console'>)</font> <font color='#0000FF'>const</font>
<b>{</b>
<font color='#0000FF'>return</font> <font face='Lucida Console'>(</font>l <font color='#5555FF'>=</font><font color='#5555FF'>=</font> rect.l<font face='Lucida Console'>)</font> <font color='#5555FF'>&</font><font color='#5555FF'>&</font> <font face='Lucida Console'>(</font>t <font color='#5555FF'>=</font><font color='#5555FF'>=</font> rect.t<font face='Lucida Console'>)</font> <font color='#5555FF'>&</font><font color='#5555FF'>&</font> <font face='Lucida Console'>(</font>r <font color='#5555FF'>=</font><font color='#5555FF'>=</font> rect.r<font face='Lucida Console'>)</font> <font color='#5555FF'>&</font><font color='#5555FF'>&</font> <font face='Lucida Console'>(</font>b <font color='#5555FF'>=</font><font color='#5555FF'>=</font> rect.b<font face='Lucida Console'>)</font>;
<b>}</b>
<font color='#0000FF'><u>bool</u></font> <b><a name='operator'></a>operator</b><font color='#5555FF'>!</font><font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>
<font color='#0000FF'>const</font> drectangle<font color='#5555FF'>&</font> rect
<font face='Lucida Console'>)</font> <font color='#0000FF'>const</font>
<b>{</b>
<font color='#0000FF'>return</font> <font color='#5555FF'>!</font><font face='Lucida Console'>(</font><font color='#5555FF'>*</font><font color='#0000FF'>this</font> <font color='#5555FF'>=</font><font color='#5555FF'>=</font> rect<font face='Lucida Console'>)</font>;
<b>}</b>
<font color='#0000FF'>private</font>:
<font color='#0000FF'><u>double</u></font> l;
<font color='#0000FF'><u>double</u></font> t;
<font color='#0000FF'><u>double</u></font> r;
<font color='#0000FF'><u>double</u></font> b;
<b>}</b>;
<font color='#009900'>// ----------------------------------------------------------------------------------------
</font>
<font color='#0000FF'>inline</font> <font color='#0000FF'><u>void</u></font> <b><a name='serialize'></a>serialize</b> <font face='Lucida Console'>(</font>
<font color='#0000FF'>const</font> drectangle<font color='#5555FF'>&</font> item,
std::ostream<font color='#5555FF'>&</font> out
<font face='Lucida Console'>)</font>
<b>{</b>
<font color='#0000FF'>try</font>
<b>{</b>
<font color='#BB00BB'>serialize</font><font face='Lucida Console'>(</font>item.<font color='#BB00BB'>left</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>,out<font face='Lucida Console'>)</font>;
<font color='#BB00BB'>serialize</font><font face='Lucida Console'>(</font>item.<font color='#BB00BB'>top</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>,out<font face='Lucida Console'>)</font>;
<font color='#BB00BB'>serialize</font><font face='Lucida Console'>(</font>item.<font color='#BB00BB'>right</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>,out<font face='Lucida Console'>)</font>;
<font color='#BB00BB'>serialize</font><font face='Lucida Console'>(</font>item.<font color='#BB00BB'>bottom</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>,out<font face='Lucida Console'>)</font>;
<b>}</b>
<font color='#0000FF'>catch</font> <font face='Lucida Console'>(</font>serialization_error<font color='#5555FF'>&</font> e<font face='Lucida Console'>)</font>
<b>{</b>
<font color='#0000FF'>throw</font> <font color='#BB00BB'>serialization_error</font><font face='Lucida Console'>(</font>e.info <font color='#5555FF'>+</font> "<font color='#CC0000'>\n while serializing an object of type drectangle</font>"<font face='Lucida Console'>)</font>;
<b>}</b>
<b>}</b>
<font color='#0000FF'>inline</font> <font color='#0000FF'><u>void</u></font> <b><a name='deserialize'></a>deserialize</b> <font face='Lucida Console'>(</font>
drectangle<font color='#5555FF'>&</font> item,
std::istream<font color='#5555FF'>&</font> in
<font face='Lucida Console'>)</font>
<b>{</b>
<font color='#0000FF'>try</font>
<b>{</b>
<font color='#BB00BB'>deserialize</font><font face='Lucida Console'>(</font>item.<font color='#BB00BB'>left</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>,in<font face='Lucida Console'>)</font>;
<font color='#BB00BB'>deserialize</font><font face='Lucida Console'>(</font>item.<font color='#BB00BB'>top</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>,in<font face='Lucida Console'>)</font>;
<font color='#BB00BB'>deserialize</font><font face='Lucida Console'>(</font>item.<font color='#BB00BB'>right</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>,in<font face='Lucida Console'>)</font>;
<font color='#BB00BB'>deserialize</font><font face='Lucida Console'>(</font>item.<font color='#BB00BB'>bottom</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>,in<font face='Lucida Console'>)</font>;
<b>}</b>
<font color='#0000FF'>catch</font> <font face='Lucida Console'>(</font>serialization_error<font color='#5555FF'>&</font> e<font face='Lucida Console'>)</font>
<b>{</b>
<font color='#0000FF'>throw</font> <font color='#BB00BB'>serialization_error</font><font face='Lucida Console'>(</font>e.info <font color='#5555FF'>+</font> "<font color='#CC0000'>\n while deserializing an object of type drectangle</font>"<font face='Lucida Console'>)</font>;
<b>}</b>
<b>}</b>
<font color='#0000FF'>inline</font> std::ostream<font color='#5555FF'>&</font> <b><a name='operator'></a>operator</b><font color='#5555FF'><</font><font color='#5555FF'><</font> <font face='Lucida Console'>(</font>
std::ostream<font color='#5555FF'>&</font> out,
<font color='#0000FF'>const</font> drectangle<font color='#5555FF'>&</font> item
<font face='Lucida Console'>)</font>
<b>{</b>
out <font color='#5555FF'><</font><font color='#5555FF'><</font> "<font color='#CC0000'>[(</font>" <font color='#5555FF'><</font><font color='#5555FF'><</font> item.<font color='#BB00BB'>left</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <font color='#5555FF'><</font><font color='#5555FF'><</font> "<font color='#CC0000'>, </font>" <font color='#5555FF'><</font><font color='#5555FF'><</font> item.<font color='#BB00BB'>top</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <font color='#5555FF'><</font><font color='#5555FF'><</font> "<font color='#CC0000'>) (</font>" <font color='#5555FF'><</font><font color='#5555FF'><</font> item.<font color='#BB00BB'>right</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <font color='#5555FF'><</font><font color='#5555FF'><</font> "<font color='#CC0000'>, </font>" <font color='#5555FF'><</font><font color='#5555FF'><</font> item.<font color='#BB00BB'>bottom</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <font color='#5555FF'><</font><font color='#5555FF'><</font> "<font color='#CC0000'>)]</font>";
<font color='#0000FF'>return</font> out;
<b>}</b>
<font color='#0000FF'>inline</font> std::istream<font color='#5555FF'>&</font> <b><a name='operator'></a>operator</b><font color='#5555FF'>></font><font color='#5555FF'>></font><font face='Lucida Console'>(</font>
std::istream<font color='#5555FF'>&</font> in,
drectangle<font color='#5555FF'>&</font> item
<font face='Lucida Console'>)</font>
<b>{</b>
<font color='#009900'>// ignore any whitespace
</font> <font color='#0000FF'>while</font> <font face='Lucida Console'>(</font>in.<font color='#BB00BB'>peek</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <font color='#5555FF'>=</font><font color='#5555FF'>=</font> '<font color='#FF0000'> </font>' <font color='#5555FF'>|</font><font color='#5555FF'>|</font> in.<font color='#BB00BB'>peek</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <font color='#5555FF'>=</font><font color='#5555FF'>=</font> '<font color='#FF0000'>\t</font>' <font color='#5555FF'>|</font><font color='#5555FF'>|</font> in.<font color='#BB00BB'>peek</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <font color='#5555FF'>=</font><font color='#5555FF'>=</font> '<font color='#FF0000'>\r</font>' <font color='#5555FF'>|</font><font color='#5555FF'>|</font> in.<font color='#BB00BB'>peek</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <font color='#5555FF'>=</font><font color='#5555FF'>=</font> '<font color='#FF0000'>\n</font>'<font face='Lucida Console'>)</font>
in.<font color='#BB00BB'>get</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>;
<font color='#009900'>// now eat the leading '[' character
</font> <font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>in.<font color='#BB00BB'>get</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <font color='#5555FF'>!</font><font color='#5555FF'>=</font> '<font color='#FF0000'>[</font>'<font face='Lucida Console'>)</font>
<b>{</b>
in.<font color='#BB00BB'>setstate</font><font face='Lucida Console'>(</font>in.<font color='#BB00BB'>rdstate</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <font color='#5555FF'>|</font> std::ios::failbit<font face='Lucida Console'>)</font>;
<font color='#0000FF'>return</font> in;
<b>}</b>
dlib::vector<font color='#5555FF'><</font><font color='#0000FF'><u>double</u></font>,<font color='#979000'>2</font><font color='#5555FF'>></font> p1, p2;
in <font color='#5555FF'>></font><font color='#5555FF'>></font> p1;
in <font color='#5555FF'>></font><font color='#5555FF'>></font> p2;
item <font color='#5555FF'>=</font> <font color='#BB00BB'>drectangle</font><font face='Lucida Console'>(</font>p1<font face='Lucida Console'>)</font> <font color='#5555FF'>+</font> <font color='#BB00BB'>drectangle</font><font face='Lucida Console'>(</font>p2<font face='Lucida Console'>)</font>;
<font color='#009900'>// ignore any whitespace
</font> <font color='#0000FF'>while</font> <font face='Lucida Console'>(</font>in.<font color='#BB00BB'>peek</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <font color='#5555FF'>=</font><font color='#5555FF'>=</font> '<font color='#FF0000'> </font>' <font color='#5555FF'>|</font><font color='#5555FF'>|</font> in.<font color='#BB00BB'>peek</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <font color='#5555FF'>=</font><font color='#5555FF'>=</font> '<font color='#FF0000'>\t</font>' <font color='#5555FF'>|</font><font color='#5555FF'>|</font> in.<font color='#BB00BB'>peek</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <font color='#5555FF'>=</font><font color='#5555FF'>=</font> '<font color='#FF0000'>\r</font>' <font color='#5555FF'>|</font><font color='#5555FF'>|</font> in.<font color='#BB00BB'>peek</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <font color='#5555FF'>=</font><font color='#5555FF'>=</font> '<font color='#FF0000'>\n</font>'<font face='Lucida Console'>)</font>
in.<font color='#BB00BB'>get</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>;
<font color='#009900'>// now eat the trailing ']' character
</font> <font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>in.<font color='#BB00BB'>get</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <font color='#5555FF'>!</font><font color='#5555FF'>=</font> '<font color='#FF0000'>]</font>'<font face='Lucida Console'>)</font>
<b>{</b>
in.<font color='#BB00BB'>setstate</font><font face='Lucida Console'>(</font>in.<font color='#BB00BB'>rdstate</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <font color='#5555FF'>|</font> std::ios::failbit<font face='Lucida Console'>)</font>;
<b>}</b>
<font color='#0000FF'>return</font> in;
<b>}</b>
<font color='#009900'>// ----------------------------------------------------------------------------------------
</font>
<font color='#0000FF'>inline</font> dlib::vector<font color='#5555FF'><</font><font color='#0000FF'><u>double</u></font>,<font color='#979000'>2</font><font color='#5555FF'>></font> <b><a name='center'></a>center</b> <font face='Lucida Console'>(</font>
<font color='#0000FF'>const</font> drectangle<font color='#5555FF'>&</font> rect
<font face='Lucida Console'>)</font>
<b>{</b>
dlib::vector<font color='#5555FF'><</font><font color='#0000FF'><u>double</u></font>,<font color='#979000'>2</font><font color='#5555FF'>></font> <font color='#BB00BB'>temp</font><font face='Lucida Console'>(</font>rect.<font color='#BB00BB'>left</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <font color='#5555FF'>+</font> rect.<font color='#BB00BB'>right</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>,
rect.<font color='#BB00BB'>top</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <font color='#5555FF'>+</font> rect.<font color='#BB00BB'>bottom</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>;
<font color='#0000FF'>return</font> temp<font color='#5555FF'>/</font><font color='#979000'>2.0</font>;
<b>}</b>
<font color='#0000FF'>inline</font> dlib::vector<font color='#5555FF'><</font><font color='#0000FF'><u>double</u></font>,<font color='#979000'>2</font><font color='#5555FF'>></font> <b><a name='dcenter'></a>dcenter</b> <font face='Lucida Console'>(</font>
<font color='#0000FF'>const</font> drectangle<font color='#5555FF'>&</font> rect
<font face='Lucida Console'>)</font>
<b>{</b>
<font color='#0000FF'>return</font> <font color='#BB00BB'>center</font><font face='Lucida Console'>(</font>rect<font face='Lucida Console'>)</font>;
<b>}</b>
<font color='#0000FF'>inline</font> drectangle <b><a name='operator'></a>operator</b><font color='#5555FF'>*</font> <font face='Lucida Console'>(</font>
<font color='#0000FF'>const</font> drectangle<font color='#5555FF'>&</font> rect,
<font color='#0000FF'>const</font> <font color='#0000FF'><u>double</u></font><font color='#5555FF'>&</font> scale
<font face='Lucida Console'>)</font>
<b>{</b>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font><font color='#5555FF'>!</font>rect.<font color='#BB00BB'>is_empty</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>
<b>{</b>
<font color='#0000FF'>const</font> <font color='#0000FF'><u>double</u></font> width <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>rect.<font color='#BB00BB'>right</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font><font color='#5555FF'>-</font>rect.<font color='#BB00BB'>left</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font><font color='#5555FF'>*</font>scale;
<font color='#0000FF'>const</font> <font color='#0000FF'><u>double</u></font> height <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>rect.<font color='#BB00BB'>bottom</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font><font color='#5555FF'>-</font>rect.<font color='#BB00BB'>top</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font><font color='#5555FF'>*</font>scale;
<font color='#0000FF'>const</font> dlib::vector<font color='#5555FF'><</font><font color='#0000FF'><u>double</u></font>,<font color='#979000'>2</font><font color='#5555FF'>></font> p <font color='#5555FF'>=</font> <font color='#BB00BB'>center</font><font face='Lucida Console'>(</font>rect<font face='Lucida Console'>)</font>;
<font color='#0000FF'>return</font> <font color='#BB00BB'>drectangle</font><font face='Lucida Console'>(</font>p.<font color='#BB00BB'>x</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font><font color='#5555FF'>-</font>width<font color='#5555FF'>/</font><font color='#979000'>2</font>, p.<font color='#BB00BB'>y</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font><font color='#5555FF'>-</font>height<font color='#5555FF'>/</font><font color='#979000'>2</font>, p.<font color='#BB00BB'>x</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font><font color='#5555FF'>+</font>width<font color='#5555FF'>/</font><font color='#979000'>2</font>, p.<font color='#BB00BB'>y</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font><font color='#5555FF'>+</font>height<font color='#5555FF'>/</font><font color='#979000'>2</font><font face='Lucida Console'>)</font>;
<b>}</b>
<font color='#0000FF'>else</font>
<b>{</b>
<font color='#0000FF'>return</font> rect;
<b>}</b>
<b>}</b>
<font color='#0000FF'>inline</font> drectangle <b><a name='operator'></a>operator</b><font color='#5555FF'>*</font> <font face='Lucida Console'>(</font>
<font color='#0000FF'>const</font> <font color='#0000FF'><u>double</u></font><font color='#5555FF'>&</font> scale,
<font color='#0000FF'>const</font> drectangle<font color='#5555FF'>&</font> rect
<font face='Lucida Console'>)</font>
<b>{</b>
<font color='#0000FF'>return</font> rect<font color='#5555FF'>*</font>scale;
<b>}</b>
<font color='#0000FF'>inline</font> drectangle <b><a name='operator'></a>operator</b><font color='#5555FF'>/</font> <font face='Lucida Console'>(</font>
<font color='#0000FF'>const</font> drectangle<font color='#5555FF'>&</font> rect,
<font color='#0000FF'>const</font> <font color='#0000FF'><u>double</u></font><font color='#5555FF'>&</font> scale
<font face='Lucida Console'>)</font>
<b>{</b>
<font color='#0000FF'>return</font> rect<font color='#5555FF'>*</font><font face='Lucida Console'>(</font><font color='#979000'>1.0</font><font color='#5555FF'>/</font>scale<font face='Lucida Console'>)</font>;
<b>}</b>
<font color='#0000FF'>inline</font> drectangle <b><a name='operator'></a>operator</b><font color='#5555FF'>+</font> <font face='Lucida Console'>(</font>
<font color='#0000FF'>const</font> drectangle<font color='#5555FF'>&</font> r,
<font color='#0000FF'>const</font> dlib::vector<font color='#5555FF'><</font><font color='#0000FF'><u>double</u></font>,<font color='#979000'>2</font><font color='#5555FF'>></font><font color='#5555FF'>&</font> p
<font face='Lucida Console'>)</font>
<b>{</b>
<font color='#0000FF'>return</font> r <font color='#5555FF'>+</font> <font color='#BB00BB'>drectangle</font><font face='Lucida Console'>(</font>p<font face='Lucida Console'>)</font>;
<b>}</b>
<font color='#0000FF'>inline</font> drectangle <b><a name='operator'></a>operator</b><font color='#5555FF'>+</font> <font face='Lucida Console'>(</font>
<font color='#0000FF'>const</font> dlib::vector<font color='#5555FF'><</font><font color='#0000FF'><u>double</u></font>,<font color='#979000'>2</font><font color='#5555FF'>></font><font color='#5555FF'>&</font> p,
<font color='#0000FF'>const</font> drectangle<font color='#5555FF'>&</font> r
<font face='Lucida Console'>)</font>
<b>{</b>
<font color='#0000FF'>return</font> r <font color='#5555FF'>+</font> <font color='#BB00BB'>drectangle</font><font face='Lucida Console'>(</font>p<font face='Lucida Console'>)</font>;
<b>}</b>
<font color='#0000FF'>template</font> <font color='#5555FF'><</font><font color='#0000FF'>typename</font> T<font color='#5555FF'>></font>
<font color='#0000FF'>inline</font> drectangle <b><a name='translate_rect'></a>translate_rect</b> <font face='Lucida Console'>(</font>
<font color='#0000FF'>const</font> drectangle<font color='#5555FF'>&</font> rect,
<font color='#0000FF'>const</font> dlib::vector<font color='#5555FF'><</font>T,<font color='#979000'>2</font><font color='#5555FF'>></font><font color='#5555FF'>&</font> p
<font face='Lucida Console'>)</font>
<b>{</b>
drectangle result;
result.<font color='#BB00BB'>top</font> <font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <font color='#5555FF'>=</font> rect.<font color='#BB00BB'>top</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <font color='#5555FF'>+</font> p.<font color='#BB00BB'>y</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>;
result.<font color='#BB00BB'>bottom</font> <font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <font color='#5555FF'>=</font> rect.<font color='#BB00BB'>bottom</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <font color='#5555FF'>+</font> p.<font color='#BB00BB'>y</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>;
result.<font color='#BB00BB'>left</font> <font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <font color='#5555FF'>=</font> rect.<font color='#BB00BB'>left</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <font color='#5555FF'>+</font> p.<font color='#BB00BB'>x</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>;
result.<font color='#BB00BB'>right</font> <font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <font color='#5555FF'>=</font> rect.<font color='#BB00BB'>right</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <font color='#5555FF'>+</font> p.<font color='#BB00BB'>x</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>;
<font color='#0000FF'>return</font> result;
<b>}</b>
<font color='#0000FF'>inline</font> drectangle <b><a name='intersect'></a>intersect</b> <font face='Lucida Console'>(</font>
<font color='#0000FF'>const</font> drectangle<font color='#5555FF'>&</font> a,
<font color='#0000FF'>const</font> drectangle<font color='#5555FF'>&</font> b
<font face='Lucida Console'>)</font> <b>{</b> <font color='#0000FF'>return</font> a.<font color='#BB00BB'>intersect</font><font face='Lucida Console'>(</font>b<font face='Lucida Console'>)</font>; <b>}</b>
<font color='#0000FF'>inline</font> <font color='#0000FF'><u>double</u></font> <b><a name='area'></a>area</b> <font face='Lucida Console'>(</font>
<font color='#0000FF'>const</font> drectangle<font color='#5555FF'>&</font> a
<font face='Lucida Console'>)</font> <b>{</b> <font color='#0000FF'>return</font> a.<font color='#BB00BB'>area</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>; <b>}</b>
<font color='#0000FF'>inline</font> drectangle <b><a name='centered_drect'></a>centered_drect</b> <font face='Lucida Console'>(</font>
<font color='#0000FF'>const</font> dlib::vector<font color='#5555FF'><</font><font color='#0000FF'><u>double</u></font>,<font color='#979000'>2</font><font color='#5555FF'>></font><font color='#5555FF'>&</font> p,
<font color='#0000FF'><u>double</u></font> width,
<font color='#0000FF'><u>double</u></font> height
<font face='Lucida Console'>)</font>
<b>{</b>
width<font color='#5555FF'>-</font><font color='#5555FF'>-</font>;
height<font color='#5555FF'>-</font><font color='#5555FF'>-</font>;
<font color='#0000FF'>return</font> <font color='#BB00BB'>drectangle</font><font face='Lucida Console'>(</font>p.<font color='#BB00BB'>x</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font><font color='#5555FF'>-</font>width<font color='#5555FF'>/</font><font color='#979000'>2</font>, p.<font color='#BB00BB'>y</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font><font color='#5555FF'>-</font>height<font color='#5555FF'>/</font><font color='#979000'>2</font>, p.<font color='#BB00BB'>x</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font><font color='#5555FF'>+</font>width<font color='#5555FF'>/</font><font color='#979000'>2</font>, p.<font color='#BB00BB'>y</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font><font color='#5555FF'>+</font>height<font color='#5555FF'>/</font><font color='#979000'>2</font><font face='Lucida Console'>)</font>;
<b>}</b>
<font color='#0000FF'>inline</font> drectangle <b><a name='centered_drect'></a>centered_drect</b> <font face='Lucida Console'>(</font>
<font color='#0000FF'>const</font> drectangle<font color='#5555FF'>&</font> rect,
<font color='#0000FF'><u>double</u></font> width,
<font color='#0000FF'><u>double</u></font> height
<font face='Lucida Console'>)</font>
<b>{</b>
<font color='#0000FF'>return</font> <font color='#BB00BB'>centered_drect</font><font face='Lucida Console'>(</font><font color='#BB00BB'>dcenter</font><font face='Lucida Console'>(</font>rect<font face='Lucida Console'>)</font>, width, height<font face='Lucida Console'>)</font>;
<b>}</b>
<font color='#0000FF'>inline</font> <font color='#0000FF'>const</font> drectangle <b><a name='shrink_rect'></a>shrink_rect</b> <font face='Lucida Console'>(</font>
<font color='#0000FF'>const</font> drectangle<font color='#5555FF'>&</font> rect,
<font color='#0000FF'><u>double</u></font> num
<font face='Lucida Console'>)</font>
<b>{</b>
<font color='#0000FF'>return</font> <font color='#BB00BB'>drectangle</font><font face='Lucida Console'>(</font>rect.<font color='#BB00BB'>left</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font><font color='#5555FF'>+</font>num, rect.<font color='#BB00BB'>top</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font><font color='#5555FF'>+</font>num, rect.<font color='#BB00BB'>right</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font><font color='#5555FF'>-</font>num, rect.<font color='#BB00BB'>bottom</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font><font color='#5555FF'>-</font>num<font face='Lucida Console'>)</font>;
<b>}</b>
<font color='#0000FF'>inline</font> <font color='#0000FF'>const</font> drectangle <b><a name='grow_rect'></a>grow_rect</b> <font face='Lucida Console'>(</font>
<font color='#0000FF'>const</font> drectangle<font color='#5555FF'>&</font> rect,
<font color='#0000FF'><u>double</u></font> num
<font face='Lucida Console'>)</font>
<b>{</b>
<font color='#0000FF'>return</font> <font color='#BB00BB'>shrink_rect</font><font face='Lucida Console'>(</font>rect, <font color='#5555FF'>-</font>num<font face='Lucida Console'>)</font>;
<b>}</b>
<font color='#0000FF'>inline</font> <font color='#0000FF'>const</font> drectangle <b><a name='shrink_rect'></a>shrink_rect</b> <font face='Lucida Console'>(</font>
<font color='#0000FF'>const</font> drectangle<font color='#5555FF'>&</font> rect,
<font color='#0000FF'><u>double</u></font> width,
<font color='#0000FF'><u>double</u></font> height
<font face='Lucida Console'>)</font>
<b>{</b>
<font color='#0000FF'>return</font> <font color='#BB00BB'>drectangle</font><font face='Lucida Console'>(</font>rect.<font color='#BB00BB'>left</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font><font color='#5555FF'>+</font>width, rect.<font color='#BB00BB'>top</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font><font color='#5555FF'>+</font>height, rect.<font color='#BB00BB'>right</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font><font color='#5555FF'>-</font>width, rect.<font color='#BB00BB'>bottom</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font><font color='#5555FF'>-</font>height<font face='Lucida Console'>)</font>;
<b>}</b>
<font color='#0000FF'>inline</font> <font color='#0000FF'>const</font> drectangle <b><a name='grow_rect'></a>grow_rect</b> <font face='Lucida Console'>(</font>
<font color='#0000FF'>const</font> drectangle<font color='#5555FF'>&</font> rect,
<font color='#0000FF'><u>double</u></font> width,
<font color='#0000FF'><u>double</u></font> height
<font face='Lucida Console'>)</font>
<b>{</b>
<font color='#0000FF'>return</font> <font color='#BB00BB'>shrink_rect</font><font face='Lucida Console'>(</font>rect, <font color='#5555FF'>-</font>width, <font color='#5555FF'>-</font>height<font face='Lucida Console'>)</font>;
<b>}</b>
<font color='#0000FF'>inline</font> <font color='#0000FF'>const</font> drectangle <b><a name='scale_rect'></a>scale_rect</b> <font face='Lucida Console'>(</font>
<font color='#0000FF'>const</font> drectangle<font color='#5555FF'>&</font> rect,
<font color='#0000FF'><u>double</u></font> scale
<font face='Lucida Console'>)</font>
<b>{</b>
<font color='#BB00BB'>DLIB_ASSERT</font><font face='Lucida Console'>(</font>scale <font color='#5555FF'>></font> <font color='#979000'>0</font>, "<font color='#CC0000'>scale factor must be > 0</font>"<font face='Lucida Console'>)</font>;
<font color='#0000FF'><u>double</u></font> l <font color='#5555FF'>=</font> rect.<font color='#BB00BB'>left</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <font color='#5555FF'>*</font> scale;
<font color='#0000FF'><u>double</u></font> t <font color='#5555FF'>=</font> rect.<font color='#BB00BB'>top</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <font color='#5555FF'>*</font> scale;
<font color='#0000FF'><u>double</u></font> r <font color='#5555FF'>=</font> rect.<font color='#BB00BB'>right</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <font color='#5555FF'>*</font> scale;
<font color='#0000FF'><u>double</u></font> b <font color='#5555FF'>=</font> rect.<font color='#BB00BB'>bottom</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <font color='#5555FF'>*</font> scale;
<font color='#0000FF'>return</font> <font color='#BB00BB'>drectangle</font><font face='Lucida Console'>(</font>l, t, r, b<font face='Lucida Console'>)</font>;
<b>}</b>
<font color='#0000FF'>inline</font> drectangle <b><a name='set_rect_area'></a>set_rect_area</b> <font face='Lucida Console'>(</font>
<font color='#0000FF'>const</font> drectangle<font color='#5555FF'>&</font> rect,
<font color='#0000FF'><u>double</u></font> area
<font face='Lucida Console'>)</font>
<b>{</b>
<font color='#BB00BB'>DLIB_ASSERT</font><font face='Lucida Console'>(</font>area <font color='#5555FF'>></font><font color='#5555FF'>=</font> <font color='#979000'>0</font>, "<font color='#CC0000'>drectangle can't have a negative area.</font>"<font face='Lucida Console'>)</font>;
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>area <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#979000'>0</font><font face='Lucida Console'>)</font>
<font color='#0000FF'>return</font> <font color='#BB00BB'>drectangle</font><font face='Lucida Console'>(</font><font color='#BB00BB'>dcenter</font><font face='Lucida Console'>(</font>rect<font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>;
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>rect.<font color='#BB00BB'>area</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#979000'>0</font><font face='Lucida Console'>)</font>
<b>{</b>
<font color='#009900'>// In this case we will make the output rectangle a square with the requested
</font> <font color='#009900'>// area.
</font> <font color='#0000FF'><u>double</u></font> scale <font color='#5555FF'>=</font> std::<font color='#BB00BB'>sqrt</font><font face='Lucida Console'>(</font>area<font face='Lucida Console'>)</font>;
<font color='#0000FF'>return</font> <font color='#BB00BB'>centered_drect</font><font face='Lucida Console'>(</font>rect, scale, scale<font face='Lucida Console'>)</font>;
<b>}</b>
<font color='#0000FF'>else</font>
<b>{</b>
<font color='#0000FF'><u>double</u></font> scale <font color='#5555FF'>=</font> std::<font color='#BB00BB'>sqrt</font><font face='Lucida Console'>(</font>area<font color='#5555FF'>/</font>rect.<font color='#BB00BB'>area</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>;
<font color='#0000FF'>return</font> <font color='#BB00BB'>centered_drect</font><font face='Lucida Console'>(</font>rect, rect.<font color='#BB00BB'>width</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font><font color='#5555FF'>*</font>scale, rect.<font color='#BB00BB'>height</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font><font color='#5555FF'>*</font>scale<font face='Lucida Console'>)</font>;
<b>}</b>
<b>}</b>
<font color='#0000FF'>inline</font> drectangle <b><a name='set_aspect_ratio'></a>set_aspect_ratio</b> <font face='Lucida Console'>(</font>
<font color='#0000FF'>const</font> drectangle<font color='#5555FF'>&</font> rect,
<font color='#0000FF'><u>double</u></font> ratio
<font face='Lucida Console'>)</font>
<b>{</b>
<font color='#BB00BB'>DLIB_ASSERT</font><font face='Lucida Console'>(</font>ratio <font color='#5555FF'>></font> <font color='#979000'>0</font>,
"<font color='#CC0000'>\t drectangle set_aspect_ratio()</font>"
<font color='#5555FF'><</font><font color='#5555FF'><</font> "<font color='#CC0000'>\n\t ratio: </font>" <font color='#5555FF'><</font><font color='#5555FF'><</font> ratio
<font face='Lucida Console'>)</font>;
<font color='#0000FF'>const</font> <font color='#0000FF'><u>double</u></font> h <font color='#5555FF'>=</font> std::<font color='#BB00BB'>sqrt</font><font face='Lucida Console'>(</font>rect.<font color='#BB00BB'>area</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font><font color='#5555FF'>/</font>ratio<font face='Lucida Console'>)</font>;
<font color='#0000FF'>const</font> <font color='#0000FF'><u>double</u></font> w <font color='#5555FF'>=</font> h<font color='#5555FF'>*</font>ratio;
<font color='#0000FF'>return</font> <font color='#BB00BB'>centered_drect</font><font face='Lucida Console'>(</font>rect, w, h<font face='Lucida Console'>)</font>;
<b>}</b>
<font color='#009900'>// ----------------------------------------------------------------------------------------
</font>
<b>}</b>
<font color='#0000FF'>#endif</font> <font color='#009900'>// DLIB_DRECTANGLe_
</font>
</pre></body></html>