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