线图Qt图表中的数据标签

Question

我正在尝试使用像此图像的Qt图表在LineChart中添加数据标签.

我无法弄明白我该怎么做.任何帮助将不胜感激.

我正在使用此示例https://doc.qt.io/qt-5/qtcharts-linechart-example.html

int main(int argc, char *argv[])
{
QApplication a(argc, argv);

QLineSeries *series = new QLineSeries();

series->append(0, 6);
series->append(2, 4);
series->append(3, 8);
series->append(7, 4);
series->append(10, 5);


QChart *chart = new QChart();
chart->legend()->hide();
chart->addSeries(series);
chart->createDefaultAxes();
chart->setTitle("Simple line chart example");

QChartView *chartView = new QChartView(chart);
chartView->setRenderHint(QPainter::Antialiasing);

QMainWindow window;
window.setCentralWidget(chartView);
window.resize(400, 300);
window.show();

return a.exec();
}

我得到以下输出

我想要这样的东西

Answer 1

您是否尝试过将标签设置为可见？

QLineSeries *series = new QLineSeries();
series->setPointLabelsVisible(true);    // is false by default
series->setPointLabelsColor(Qt::black);
series->setPointLabelsFormat("@yPoint");