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main.cpp
49 lines | 1.4 KiB | text/x-c | CppLexer
#include <QtGui/QApplication>
#include <QMainWindow>
#include <qchartglobal.h>
#include <qchartview.h>
#include <qscatterseries.h>
QTCOMMERCIALCHART_USE_NAMESPACE
int main(int argc, char *argv[])
{
QApplication a(argc, argv);
// Create chart widget
QChartView *chartView = new QChartView();
// Add scatter series with simple test data
QScatterSeries *scatter = new QScatterSeries();
*scatter << QPointF(0.5, 5.0)
<< QPointF(1.0, 4.5)
<< QPointF(1.0, 5.5)
<< QPointF(1.5, 5.0)
<< QPointF(2.0, 4.5)
<< QPointF(2.0, 5.5)
<< QPointF(2.5, 5.0);
// Chart takes ownership
chartView->addSeries(scatter);
// Add another scatter series
// - more data with random component
QScatterSeries *scatter2 = new QScatterSeries();
for (qreal i(0.0); i < 20; i += 0.15) {
(*scatter2) << QPointF(i + (qreal)(rand() % 100) / 100.0,
i + (qreal)(rand() % 100) / 100.0);
}
QBrush brush(QColor(255, 0, 0, 100), Qt::SolidPattern);
scatter2->setMarkerBrush(brush);
QPen pen(QColor(0, 255, 0, 80), 3);
scatter2->setMarkerPen(pen);
scatter2->setMarkerShape(QScatterSeries::MarkerShapeRectangle);
chartView->addSeries(scatter2);
// Use the chart widget as the central widget
QMainWindow w;
w.resize(640, 480);
w.setCentralWidget(chartView);
w.show();
return a.exec();
}