我有一个使用 ChartFactory.createScatterPlot
创建的散点图。我想围绕每个点绘制轮廓,以便在具有聚集点的区域中获得更好的视觉反馈。我正在尝试这样:
Shape cross = new Ellipse2D.Double(0,0,5,5);
XYPlot xyPlot = (XYPlot) jfreechart.getPlot();
xyPlot.setDomainCrosshairVisible(true);
xyPlot.setRangeCrosshairVisible(true)
XYItemRenderer renderer = xyPlot.getRenderer();
renderer.setSeriesShape(0, cross);
renderer.setSeriesPaint(0, Color.red);
renderer.setSeriesOutlinePaint(0, Color.black);
renderer.setSeriesOutlineStroke(0, new BasicStroke(2));
renderer.setSeriesStroke(0, new BasicStroke(1));
但只绘制了新形状,点没有轮廓:
最佳答案
factory method引用的实例XYLineAndShapeRenderer
,因此要查看更改,您需要调用 setUseOutlinePaint()
,以及 setSeriesOutlinePaint()
和(可选)setSeriesOutlineStroke()
。
XYLineAndShapeRenderer renderer = (XYLineAndShapeRenderer) xyPlot.getRenderer();
renderer.setUseOutlinePaint(true);
renderer.setSeriesOutlinePaint(0, Color.black);
renderer.setSeriesOutlineStroke(0, new BasicStroke(2));
显示了完整的示例 here .
关于java - 更改散点图中的系列轮廓描边和绘画,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/36135094/