chartview.cpp Example File

scatterchart/chartview.cpp
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#include "chartview.h" #include <QtCharts/QScatterSeries> #include <QtCharts/QLegendMarker> #include <QtGui/QImage> #include <QtGui/QPainter> #include <QtCore/QtMath> ChartView::ChartView(QWidget *parent) : QChartView(new QChart(), parent) { QScatterSeries *series0 = new QScatterSeries(); series0->setName("scatter1"); series0->setMarkerShape(QScatterSeries::MarkerShapeCircle); series0->setMarkerSize(15.0); QScatterSeries *series1 = new QScatterSeries(); series1->setName("scatter2"); series1->setMarkerShape(QScatterSeries::MarkerShapeRectangle); series1->setMarkerSize(20.0); QScatterSeries *series2 = new QScatterSeries(); series2->setName("scatter3"); series2->setMarkerShape(QScatterSeries::MarkerShapeRectangle); series2->setMarkerSize(30.0); series0->append(0, 6); series0->append(2, 4); series0->append(3, 8); series0->append(7, 4); series0->append(10, 5); *series1 << QPointF(1, 1) << QPointF(3, 3) << QPointF(7, 6) << QPointF(8, 3) << QPointF(10, 2); *series2 << QPointF(1, 5) << QPointF(4, 6) << QPointF(6, 3) << QPointF(9, 5); QPainterPath starPath; starPath.moveTo(28, 15); for (int i = 1; i < 5; ++i) { starPath.lineTo(14 + 14 * qCos(0.8 * i * M_PI), 15 + 14 * qSin(0.8 * i * M_PI)); } starPath.closeSubpath(); QImage star(30, 30, QImage::Format_ARGB32); star.fill(Qt::transparent); QPainter painter(&star); painter.setRenderHint(QPainter::Antialiasing); painter.setPen(QRgb(0xf6a625)); painter.setBrush(painter.pen().color()); painter.drawPath(starPath); series2->setBrush(star); series2->setPen(QColor(Qt::transparent)); setRenderHint(QPainter::Antialiasing); chart()->addSeries(series0); chart()->addSeries(series1); chart()->addSeries(series2); chart()->setTitle("Simple scatterchart example"); chart()->createDefaultAxes(); chart()->setDropShadowEnabled(false); chart()->legend()->setMarkerShape(QLegend::MarkerShapeFromSeries); }