java - JFreeChart 区域边界线？

Question

我有一个动态 XYAreaChart，我希望线条边框清晰，因为该区域全部填充渐变颜色，但我希望线条边框采用不同的颜色，例如我的区域填充渐变绿色和红色我希望线条边框为黑色。如何做到这一点？

这是我的代码:

final XYSeries series = new XYSeries("Data");

    XYSeriesCollection dataset = new XYSeriesCollection(series);

    // Creation du area chart
    JFreeChart chart = ChartFactory.createXYAreaChart("Fun Meter", "", "",
            dataset, PlotOrientation.VERTICAL, false, false, false);


    // jframe=new ChartFrame("Fun Meter", chart);

    ChartPanel CP = new ChartPanel(chart);

    XYPlot xyPlot = (XYPlot) chart.getPlot();



    GradientPaint gp0 = new GradientPaint(0.0f, 100.0f, new Color(50, 205,
            50), 0.0f, 100.0f, Color.red);

    xyPlot.getRenderer().setSeriesPaint(0, gp0);

    xyPlot.setForegroundAlpha(0.75f);

Answer 1

您应该在渲染器上使用 setSeriesOutlinePaint(int, Paint) 方法。假设您使用XYAreaRenderer所以类似:

XYAreaRenderer renderer = (XYAreaRenderer) xyPlot.getRenderer();
renderer.setSeriesOutlinePaint(0, Color.black);
renderer.setSeriesOutlineStroke(0, new BasicStroke(0.5f));
renderer.setOutline(true);