main.cpp Example File

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  ** Contact: https://www.qt.io/licensing/
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  ** This file is part of the Qt Charts module of the Qt Toolkit.
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  #include <QtWidgets/QApplication>
  #include <QtWidgets/QMainWindow>
  #include <QtCharts/QChartView>
  #include <QtCharts/QLineSeries>
  #include <QtCharts/QSplineSeries>
  #include <QtCharts/QValueAxis>
  #include <QtCharts/QCategoryAxis>

  QT_CHARTS_USE_NAMESPACE

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

      QChart *chart = new QChart();
      chart->legend()->hide();
      chart->setTitle("Multiaxis chart example");

      QValueAxis *axisX = new QValueAxis;
      axisX->setTickCount(10);
      chart->addAxis(axisX, Qt::AlignBottom);

      QSplineSeries *series = new QSplineSeries;
      *series << QPointF(1, 5) << QPointF(3.5, 18) << QPointF(4.8, 7.5) << QPointF(10, 2.5);
      chart->addSeries(series);

      QValueAxis *axisY = new QValueAxis;
      axisY->setLinePenColor(series->pen().color());

      chart->addAxis(axisY, Qt::AlignLeft);
      series->attachAxis(axisX);
      series->attachAxis(axisY);

      series = new QSplineSeries;
      *series << QPointF(1, 0.5) << QPointF(1.5, 4.5) << QPointF(2.4, 2.5) << QPointF(4.3, 12.5)
              << QPointF(5.2, 3.5) << QPointF(7.4, 16.5) << QPointF(8.3, 7.5) << QPointF(10, 17);
      chart->addSeries(series);

      QCategoryAxis *axisY3 = new QCategoryAxis;
      axisY3->append("Low", 5);
      axisY3->append("Medium", 12);
      axisY3->append("High", 17);
      axisY3->setLinePenColor(series->pen().color());
      axisY3->setGridLinePen((series->pen()));

      chart->addAxis(axisY3, Qt::AlignRight);
      series->attachAxis(axisX);
      series->attachAxis(axisY3);

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

      QMainWindow window;
      window.setCentralWidget(chartView);
      window.resize(800, 600);
      window.show();

      return a.exec();
  }