jfreechat 如何设置每个饼图的颜色

  private static final String FIRST = "<200米";

  private static final String SECOND = "200-1000米";

  private static final String THIRD = ">1000米";

  private static PieDataset createDataset(int[] data) {
    DefaultPieDataset defaultpiedataset = new DefaultPieDataset();
    defaultpiedataset.setValue(FIRST, data[0]);
    defaultpiedataset.setValue(SECOND, data[1]);
    defaultpiedataset.setValue(THIRD, data[2]);
    return defaultpiedataset;
  }

  private static JFreeChart createChart(String title, PieDataset piedataset, int[] data) {
    JFreeChart jfreechart = ChartFactory.createPieChart3D(title, piedataset, true, true, false);
    PiePlot3D pieplot3d = (PiePlot3D) jfreechart.getPlot();
    pieplot3d.setStartAngle(290D);
    pieplot3d.setDirection(Rotation.CLOCKWISE);
    pieplot3d.setForegroundAlpha(0.8F);
    pieplot3d.setNoDataMessage("没有数据");
    pieplot3d.setLabelGenerator(new CustomLabelGenerator(data));

    // 下面这几个是修改对应的颜色的
    pieplot3d.setSectionPaint(FIRST, new Color(255, 0, 0));
    pieplot3d.setSectionPaint(SECOND, new Color(255, 255, 0));
    pieplot3d.setSectionPaint(THIRD, new Color(0, 255, 0));
    pieplot3d.setDepthFactor(0.3f);
    return jfreechart;
  }