42 lines
1.1 KiB
C++
42 lines
1.1 KiB
C++
#include <opencv2/highgui.hpp>
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#include <opencv2/plot.hpp>
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#include <iostream>
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using namespace cv;
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int main()
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{
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Mat data_x( 1, 51, CV_64F );
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Mat data_y( 1, 51, CV_64F );
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for ( int i = 0; i < data_x.cols; i++ )
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{
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double x = ( i - data_x.cols / 2 );
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data_x.at<double>( 0, i ) = x;
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data_y.at<double>( 0, i ) = x * x * x;
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}
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std::cout << "data_x : " << data_x << std::endl;
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std::cout << "data_y : " << data_y << std::endl;
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Mat plot_result;
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Ptr<plot::Plot2d> plot = plot::Plot2d::create( data_x, data_y );
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plot->render(plot_result);
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imshow( "The plot rendered with default visualization options", plot_result );
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plot->setShowText( false );
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plot->setShowGrid( false );
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plot->setPlotBackgroundColor( Scalar( 255, 200, 200 ) );
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plot->setPlotLineColor( Scalar( 255, 0, 0 ) );
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plot->setPlotLineWidth( 2 );
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plot->setInvertOrientation( true );
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plot->render( plot_result );
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imshow( "The plot rendered with some of custom visualization options", plot_result );
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waitKey();
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return 0;
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}
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