Jfreechart-我们可以在StackedAreaChart中为数据点设置形状吗? [英] Jfreechart - can we set a shape for a datapoint in StackedAreaChart?
问题描述
我正在使用Jfreechart制作堆积面积图.我正在使用类StackedXYAreaChart.
I am using Jfreechart to make a stacked area chart. I am using the class StackedXYAreaChart.
我想知道是否可以在StackedAreaChart的数据点上绘制形状(它是一个折线图,可以通过设置SetSeriesShapes()来表示每个数据点).
I wanted to know if we could draw shapes at data points for the StackedAreaChart, (it a line chart we can denote each data point by setting the SetSeriesShapes()).
setSeriesShape()方法似乎不起作用.有人有什么主意吗?
The method setSeriesShape() doesn't seem to work. Anyone have any idea ?
这是到目前为止我一直在尝试的内容(请不要评论我有一个空的数据集.我正在绘制一个动态图,该序列将在以后填充):
Here's what I have tried till now (Please do not comment that I have an empty dataset. I am plotting a dynamic graph and the series would be filled later ):
incomingData = new TimeTableXYDataset();
final JFreeChart incomingDataChart = ChartFactory.createStackedXYAreaChart(
"Chart", "Time", "Payload (In Bytes)", incomingData, PlotOrientation.VERTICAL, true, true, false);
final StackedXYAreaRenderer renderChart = new StackedXYAreaRenderer();
renderChart.setSeriesPaint(0, Color.decode("#339900"));
renderChart.setSeriesPaint(1, Color.decode("#CC9933"));
renderChart.setSeriesPaint(2, Color.decode("#33CCFF"));
renderChart.setSeriesPaint(3, Color.decode("#FF6600"));
renderChart.setSeriesShape(0, new Ellipse2D.Double(-3, -3, 10, 10));
renderChart.setSeriesShape(1, new Ellipse2D.Double(-3, -3, 10, 10));
renderChart.setSeriesShape(2, new Ellipse2D.Double(-3, -3, 10, 10));
renderChart.setSeriesShape(3, new Ellipse2D.Double(-3, -3, 10, 10));
incomingDatachart.getPlot().setRenderer(renderChart);
推荐答案
You need to set the type of the StackedXYAreaRenderer to be "shapes and lines". That renderer doesn't show the shapes by default.
StackedXYAreaRenderer renderer = new StackedXYAreaRenderer(StackedXYAreaRenderer.SHAPES_AND_LINES);
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