Qt折线的显示与隐藏

C++ Qt绘制图表，用鼠标点击图表的series的名称，实现图表中线条隐藏与显示

 

private slots:void onLegendMarkerClicked() {bool checked = false;qDebug() << "" << checked;QLegendMarker* marker = qobject_cast<QLegendMarker*>(sender());if (marker) {QLineSeries* series = qobject_cast<QLineSeries*>(marker->series());if (series) {if (series->isVisible()){series->setVisible(false);}else {series->setVisible(true);}}marker->setVisible(true);}}

 

// 连接图例标记的点击事件
for (QLegendMarker* marker : chart->legend()->markers()) {qDebug()<<""<<marker->series()->name();connect(marker, SIGNAL(clicked()), this, SLOT(onLegendMarkerClicked()));
}

 

 

 

 

 

 

 

 

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