main.cpp Example File | Qt Charts 5.12.10

- Qt 5.12
- Qt Charts
- AreaChart Example
- main.cpp Example File
- Qt Charts | Commercial or GPLv3

# main.cpp Example File

areachart/main.cpp

     /****************************************************************************
     **
     ** Copyright (C) 2016 The Qt Company Ltd.
     ** Contact: https://www.qt.io/licensing/
     **
     ** This file is part of the Qt Charts module of the Qt Toolkit.
     **
     ** $QT_BEGIN_LICENSE:GPL$
     ** Commercial License Usage
     ** Licensees holding valid commercial Qt licenses may use this file in
     ** accordance with the commercial license agreement provided with the
     ** Software or, alternatively, in accordance with the terms contained in
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     ** GNU General Public License Usage
     ** Alternatively, this file may be used under the terms of the GNU
     ** General Public License version 3 or (at your option) any later version
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     ** the Free Software Foundation and appearing in the file LICENSE.GPL3
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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();
     }