Qt实现简单折线图表
作者:虾球xz
这篇文章主要为大家详细介绍了Qt实现简单折线图表,文中示例代码介绍的非常详细,具有一定的参考价值,感兴趣的小伙伴们可以参考一下
本文实例为大家分享了Qt实现简单折线图表的具体代码,供大家参考,具体内容如下
main.cpp
#include <QApplication> #include <QChartView> #include <QLineSeries> #include <QDebug> QVector<QPointF> convertLine2Step(const QVector<QPointF> &points) { QVector<QPointF> s; s << points.at(0); int x, y; for (int i = 1; i < points.count(); i++) { x = points.at(i).x(); y = points.at(i - 1).y(); s << QPointF(x, y); s << points.at(i); } return s; } int main(int argc, char *argv[]) { QApplication a(argc, argv); QtCharts::QChartView w; w.setRenderHint(QPainter::Antialiasing); QtCharts::QChart chart; chart.legend()->setVisible(true); w.setChart(&chart); QtCharts::QLineSeries *series = new QtCharts::QLineSeries; QVector<QPointF> points; points << QPointF(2, 4); points << QPointF(3, 8); points << QPointF(7, 4); points << QPointF(10, 5); points << QPointF(11, 1) << QPointF(13, 3) << QPointF(17, 6) << QPointF(18, 3) << QPointF(20, 2); *series << points.toList(); series->setName("original"); QtCharts::QLineSeries *stepSerie = new QtCharts::QLineSeries; *stepSerie << convertLine2Step(points).toList(); stepSerie->setName("step"); chart.addSeries(series); chart.addSeries(stepSerie); chart.createDefaultAxes(); chart.setTitle("Simple line chart example"); w.show(); return a.exec(); }
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持脚本之家。