jfreechart xyplot小さな領域の背景色を設定

Question

私は、図を描画するためにJavaを使用しています。xyplotの小さな領域の背景色を設定します。私はx軸（20から30）とy軸（10-20）から赤い色を設定し、残りの部分はこのようにしたいと思っていますが、私は使用価値のある製作者ですが、色と多分、

private JFreeChart createChart(XYDataset dataset) { 

    /*JFreeChart chart = ChartFactory.createXYLineChart(
      "Chart Index Sag", 
      "Sag Duration", 
      "Retained Voltage", 
      dataset, 
      PlotOrientation.VERTICAL, 
      false, 
      false, 
      false 
    );*/ 

    XYLineAndShapeRenderer rr = new XYLineAndShapeRenderer(); 
    rr.setSeriesLinesVisible(2, true); 
    rr.setSeriesShapesVisible(2, true); 
    rr.setPaint(Color.red); 

    // Point label 
    XYLineAndShapeRenderer renderer = new XYLineAndShapeRenderer(); 
    renderer.setBaseFillPaint(Color.black); 
    renderer.setSeriesLinesVisible(0, false); 
    renderer.setBaseItemLabelGenerator(new LabelGenerator()); 
    renderer.setBaseItemLabelsVisible(true); 
    renderer.setBaseItemLabelFont(new Font("Arial", Font.BOLD, 12)); 
    renderer.setPaint(Color.black); 
    //plot = (XYPlot) chart.getPlot(); 
    SymbolAxis symbolaxis1 = new SymbolAxis("Sag Duration", new String[] { "0","0.02","0.2", "0.5", "10" }); 
    symbolaxis1.setRange(0,6); 
    symbolaxis1.setGridBandsVisible(false); 

    SymbolAxis range = new SymbolAxis("Returned Voltage", new String[] { "0","0.2","0.4", "0.6", "0.8", "1" }); 
    range.setRange(0,5); 
    range.setGridBandsVisible(false); 

    plot = new XYPlot(dataset, symbolaxis1, range, renderer); 
    plot.setDomainPannable(true); 
    plot.setRangePannable(true); 
    plot.setBackgroundPaint(Color.lightGray); 
    // Line curve 
    plot.setDataset(0, dataset); 
    plot.setDataset(1, dataset1); 

    final Marker originalEnd = new ValueMarker(1); 
    originalEnd.setPaint(Color.black); 
    originalEnd.setStroke(new BasicStroke(1)); 
    plot.addDomainMarker(originalEnd); 

    final Marker v2 = new ValueMarker(2); 
    v2.setPaint(Color.black); 
    v2.setStroke(new BasicStroke(1)); 
    plot.addDomainMarker(v2); 

    final Marker v3 = new ValueMarker(3); 
    v3.setPaint(Color.black); 
    v3.setStroke(new BasicStroke(1)); 
    plot.addDomainMarker(v3); 

    final Marker v4 = new ValueMarker(4); 
    v4.setPaint(Color.black); 
    v4.setStroke(new BasicStroke(1)); 
    plot.addDomainMarker(v4); 

    Marker r1 = new ValueMarker(1); 
    r1.setPaint(Color.black); 
    r1.setStroke(new BasicStroke(1)); 
    plot.addRangeMarker(r1); 

    Marker r2 = new ValueMarker(2); 
    r2.setPaint(Color.black); 
    r2.setStroke(new BasicStroke(1)); 
    plot.addRangeMarker(r2); 

    Marker r3 = new ValueMarker(3); 
    r3.setPaint(Color.black); 
    r3.setStroke(new BasicStroke(1)); 
    plot.addRangeMarker(r3); 

    Marker r4 = new ValueMarker(4); 
    r4.setPaint(Color.black); 
    r4.setStroke(new BasicStroke(1)); 
    plot.addRangeMarker(r4); 

    float dash[] = {1, 1}; 
    float f1 = 1, f2 = 1, f3 = 10; 


    /*NumberAxis domainAxis = (NumberAxis) plot.getDomainAxis(); 
    domainAxis.setRange(0, 2); 
    domainAxis.setTickUnit(new NumberTickUnit(0.2));*/ 
    BasicStroke gridstroke = new BasicStroke(f1, BasicStroke.CAP_BUTT, BasicStroke.JOIN_BEVEL, f2, dash, f3); 
    plot.setDomainGridlinePaint(Color.blue); 
    //plot.setRangeGridlinePaint(Color.blue); 
    plot.setDomainGridlineStroke(gridstroke); 
    plot.setRangeGridlineStroke(gridstroke); 
    final JFreeChart chart = new JFreeChart(plot); 
    chart.getXYPlot().setRenderer(0, rr); 
    chart.getXYPlot().setRenderer(1, renderer); 
    return chart; 
} 

Answer 1

あなたがXYBoxAnnotationを試してみてください、このような何か：

XYPlot plot = chart.getXYPlot(); 
XYLineAndShapeRenderer renderer = (XYLineAndShapeRenderer) plot.getRenderer(); 
XYBoxAnnotation xyboxannotation = new XYBoxAnnotation(
    1, 1, 2, 2, new BasicStroke(0), new Color(0), new Color(0x30d0d0d0)); 
renderer.addAnnotation(xyboxannotation, Layer.BACKGROUND); 

を私は、これは私のコードであるだけの小さな面積

をしたいです