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<html><!-- Created using the cpp_pretty_printer from the dlib C++ library. See http://dlib.net for updates. --><head><title>dlib C++ Library - draw_surf_points.h</title></head><body bgcolor='white'><pre>
<font color='#009900'>// Copyright (C) 2013 Davis E. King ([email protected])
</font><font color='#009900'>// License: Boost Software License See LICENSE.txt for the full license.
</font><font color='#0000FF'>#ifndef</font> DLIB_DRAW_SURf_POINTS_H_
<font color='#0000FF'>#define</font> DLIB_DRAW_SURf_POINTS_H_
<font color='#0000FF'>#include</font> "<a style='text-decoration:none' href='surf.h.html'>surf.h</a>"
<font color='#0000FF'>#include</font> "<a style='text-decoration:none' href='../gui_widgets.h.html'>../gui_widgets.h</a>"
<font color='#0000FF'>#include</font> "<a style='text-decoration:none' href='draw_surf_points_abstract.h.html'>draw_surf_points_abstract.h</a>"
<font color='#0000FF'>namespace</font> dlib
<b>{</b>
<font color='#009900'>// ----------------------------------------------------------------------------------------
</font> <font color='#0000FF'>inline</font> <font color='#0000FF'><u>void</u></font> <b><a name='draw_surf_points'></a>draw_surf_points</b> <font face='Lucida Console'>(</font>
image_window<font color='#5555FF'>&amp;</font> win,
<font color='#0000FF'>const</font> std::vector<font color='#5555FF'>&lt;</font>surf_point<font color='#5555FF'>&gt;</font><font color='#5555FF'>&amp;</font> sp
<font face='Lucida Console'>)</font>
<b>{</b>
<font color='#0000FF'>for</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>unsigned</u></font> <font color='#0000FF'><u>long</u></font> i <font color='#5555FF'>=</font> <font color='#979000'>0</font>; i <font color='#5555FF'>&lt;</font> sp.<font color='#BB00BB'>size</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>; <font color='#5555FF'>+</font><font color='#5555FF'>+</font>i<font face='Lucida Console'>)</font>
<b>{</b>
<font color='#0000FF'>const</font> <font color='#0000FF'><u>unsigned</u></font> <font color='#0000FF'><u>long</u></font> radius <font color='#5555FF'>=</font> <font color='#0000FF'>static_cast</font><font color='#5555FF'>&lt;</font><font color='#0000FF'><u>unsigned</u></font> <font color='#0000FF'><u>long</u></font><font color='#5555FF'>&gt;</font><font face='Lucida Console'>(</font>sp[i].p.scale<font color='#5555FF'>*</font><font color='#979000'>3</font><font face='Lucida Console'>)</font>;
<font color='#0000FF'>const</font> point <font color='#BB00BB'>center</font><font face='Lucida Console'>(</font>sp[i].p.center<font face='Lucida Console'>)</font>;
point direction <font color='#5555FF'>=</font> center <font color='#5555FF'>+</font> <font color='#BB00BB'>point</font><font face='Lucida Console'>(</font>radius,<font color='#979000'>0</font><font face='Lucida Console'>)</font>;
<font color='#009900'>// SURF descriptors are rotated by sp[i].angle. So we want to include a visual
</font> <font color='#009900'>// indication of this rotation on our overlay.
</font> direction <font color='#5555FF'>=</font> <font color='#BB00BB'>rotate_point</font><font face='Lucida Console'>(</font>center, direction, sp[i].angle<font face='Lucida Console'>)</font>;
win.<font color='#BB00BB'>add_overlay</font><font face='Lucida Console'>(</font>image_display::<font color='#BB00BB'>overlay_circle</font><font face='Lucida Console'>(</font>center, radius, <font color='#BB00BB'>rgb_pixel</font><font face='Lucida Console'>(</font><font color='#979000'>0</font>,<font color='#979000'>255</font>,<font color='#979000'>0</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>;
<font color='#009900'>// Draw a line showing the orientation of the SURF descriptor.
</font> win.<font color='#BB00BB'>add_overlay</font><font face='Lucida Console'>(</font>center, direction, <font color='#BB00BB'>rgb_pixel</font><font face='Lucida Console'>(</font><font color='#979000'>255</font>,<font color='#979000'>0</font>,<font color='#979000'>0</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>;
<b>}</b>
<b>}</b>
<font color='#009900'>// ----------------------------------------------------------------------------------------
</font>
<b>}</b>
<font color='#0000FF'>#endif</font> <font color='#009900'>// DLIB_DRAW_SURf_POINTS_H_
</font>
</pre></body></html>