mirror of https://github.com/davisking/dlib.git
49 lines
1.5 KiB
C++
49 lines
1.5 KiB
C++
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// The contents of this file are in the public domain. See LICENSE_FOR_EXAMPLE_PROGRAMS.txt
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/*
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This is an example illustrating the use of the perspective_window tool
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in the dlib C++ Library. It is a simple tool for displaying 3D point
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clouds on the screen.
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*/
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#include <dlib/gui_widgets.h>
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#include <dlib/image_transforms.h>
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using namespace dlib;
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// ----------------------------------------------------------------------------------------
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int main()
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{
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// Let's make a point cloud that looks like a 3D spiral.
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std::vector<perspective_window::overlay_dot> points;
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dlib::rand rnd;
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for (double i = 0; i < 20; i+=0.001)
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{
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// Get a point on a spiral
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dlib::vector<double> val(sin(i),cos(i),i/4);
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// Now add some random noise to it
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dlib::vector<double> temp(rnd.get_random_gaussian(),
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rnd.get_random_gaussian(),
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rnd.get_random_gaussian());
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val += temp/20;
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// Pick a color based on how far we are along the spiral
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rgb_pixel color = colormap_jet(i,0,20);
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// And add the point to the list of points we will display
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points.push_back(perspective_window::overlay_dot(val, color));
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}
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// Now finally display the point cloud.
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perspective_window win;
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win.set_title("perspective_window 3D point cloud");
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win.add_overlay(points);
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win.wait_until_closed();
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}
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// ----------------------------------------------------------------------------
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