main.cpp Example File

areachart/main.cpp
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 #include <QtWidgets/QApplication>
 #include <QtWidgets/QMainWindow>
 #include <QtCharts/QChartView>
 #include <QtCharts/QLineSeries>
 #include <QtCharts/QAreaSeries>

 QT_CHARTS_USE_NAMESPACE

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

     QLineSeries *series0 = new QLineSeries();
     QLineSeries *series1 = new QLineSeries();

     *series0 << QPointF(1, 5) << QPointF(3, 7) << QPointF(7, 6) << QPointF(9, 7) << QPointF(12, 6)
              << QPointF(16, 7) << QPointF(18, 5);
     *series1 << QPointF(1, 3) << QPointF(3, 4) << QPointF(7, 3) << QPointF(8, 2) << QPointF(12, 3)
              << QPointF(16, 4) << QPointF(18, 3);

     QAreaSeries *series = new QAreaSeries(series0, series1);
     series->setName("Batman");
     QPen pen(0x059605);
     pen.setWidth(3);
     series->setPen(pen);

     QLinearGradient gradient(QPointF(0, 0), QPointF(0, 1));
     gradient.setColorAt(0.0, 0x3cc63c);
     gradient.setColorAt(1.0, 0x26f626);
     gradient.setCoordinateMode(QGradient::ObjectBoundingMode);
     series->setBrush(gradient);

     QChart *chart = new QChart();
     chart->addSeries(series);
     chart->setTitle("Simple areachart example");
     chart->createDefaultAxes();
     chart->axes(Qt::Horizontal).first()->setRange(0, 20);
     chart->axes(Qt::Vertical).first()->setRange(0, 10);

     QChartView *chartView = new QChartView(chart);
     chartView->setRenderHint(QPainter::Antialiasing);

     QMainWindow window;
     window.setCentralWidget(chartView);
     window.resize(400, 300);
     window.show();

     return a.exec();
 }