QChart 设置部分图例隐藏场景介绍
- 在我们绘制QChart图形中，如果需要绘制折线柱状等多种格式序列时，我们只想柱状图显示图例怎，折线图例隐藏怎么实现呢？
QChart 设置部分图例隐藏解决办法
- 关键词：
- 所有序列标记：QList<QLegendMarker *> QLegend::markers(QAbstractSeries *series = Q_NULLPTR) const
- 枚举值： enum QLegendMarker::LegendMarkerType
- The type of the legend marker object.This enum was introduced or modified in Qt 5.8.
| Constant |
Value |
Description |
| QLegendMarker::LegendMarkerTypeArea |
0 |
A legend marker for an area series. |
| QLegendMarker::LegendMarkerTypeBar |
1 |
A legend marker for a bar set. |
| QLegendMarker::LegendMarkerTypePie |
2 |
A legend marker for a pie slice. |
| QLegendMarker::LegendMarkerTypeXY |
3 |
A legend marker for a line, spline, or scatter series. |
| QLegendMarker::LegendMarkerTypeBoxPlot |
4 |
A legend marker for a box plot series. |
| QLegendMarker::LegendMarkerTypeCandlestick |
5 |
A legend marker for a candlestick series. |
1 foreach (QLegendMarker* marker, chart->legend()->markers())
2 {
3 if(marker->type() == QLegendMarker::LegendMarkerTypeXY)
4 {
5 marker->setVisible(false);
6 }
7 }