qt-everywhere-src-5.14.1/qtcharts/tests/manual/wavechart/main.cpp

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#include "wavechart.h"
#include <QtWidgets/QApplication>
#include <QtWidgets/QMainWindow>
#include <QtWidgets/QOpenGLWidget>

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);

    QMainWindow window;
    QChart *chart = new QChart();
    WaveChart *waveChart = new WaveChart(chart,&window);

    waveChart->setViewport( new QOpenGLWidget() );
    waveChart->setRenderHint(QPainter::Antialiasing);
    chart->setAnimationOptions(QChart::AllAnimations);
    chart->setTitle("This is wave generator.");

    window.setCentralWidget(waveChart);
    window.resize(400, 300);
    window.show();

    return a.exec();
}