main.cpp 范例文件

splinechart/main.cpp
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#include <QtWidgets/QApplication> #include <QtWidgets/QMainWindow> #include <QtCharts/QChartView> #include <QtCharts/QSplineSeries> QT_CHARTS_USE_NAMESPACE int main(int argc, char *argv[]) { QApplication a(argc, argv); QSplineSeries *series = new QSplineSeries(); series->setName("spline"); series->append(0, 6); series->append(2, 4); series->append(3, 8); series->append(7, 4); series->append(10, 5); *series << QPointF(11, 1) << QPointF(13, 3) << QPointF(17, 6) << QPointF(18, 3) << QPointF(20, 2); QChart *chart = new QChart(); chart->legend()->hide(); chart->addSeries(series); chart->setTitle("Simple spline chart example"); chart->createDefaultAxes(); 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(); }