// Copyright (C) 2023 The Qt Company Ltd. // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause #include "chart.h" #include "chartview.h" #include #include #include #include #include #include int main(int argc, char *argv[]) { QApplication a(argc, argv); //![1] auto series = new QLineSeries; for (int i = 0; i < 500; i++) { QPointF p((qreal) i, qSin(M_PI / 50 * i) * 100); p.ry() += QRandomGenerator::global()->bounded(20); *series << p; } //![1] auto chart = new Chart; chart->addSeries(series); chart->setTitle("Zoom in/out example"); chart->setAnimationOptions(QChart::SeriesAnimations); chart->legend()->hide(); chart->createDefaultAxes(); auto chartView = new ChartView(chart); chartView->setRenderHint(QPainter::Antialiasing); QMainWindow window; window.setCentralWidget(chartView); window.resize(400, 300); window.grabGesture(Qt::PanGesture); window.grabGesture(Qt::PinchGesture); window.show(); return a.exec(); }