import org.jfree.chart.plot.dial.DialValueIndicator; //导入依赖的package包/类
public JFreeChart createStandardDialChart(String s, String s1, ValueDataset valuedataset, double d, double d1, double d2, int i) {
	DialPlot dialplot = new DialPlot();
	dialplot.setDataset(valuedataset);
	dialplot.setDialFrame(new StandardDialFrame());
	dialplot.setBackground(new DialBackground());
	DialTextAnnotation dialtextannotation = new DialTextAnnotation(s1);
	dialtextannotation.setFont(new Font("Dialog", 1, 14));
	dialtextannotation.setRadius(0.69999999999999996D);
	dialplot.addLayer(dialtextannotation);
	DialValueIndicator dialvalueindicator = new DialValueIndicator(0);
	dialplot.addLayer(dialvalueindicator);
	StandardDialScale standarddialscale = new StandardDialScale(d, d1, -120D, -300D, 10D, 4);
	standarddialscale.setMajorTickIncrement(d2);
	standarddialscale.setMinorTickCount(i);
	standarddialscale.setTickRadius(0.88D);
	standarddialscale.setTickLabelOffset(0.14999999999999999D);
	standarddialscale.setTickLabelFont(new Font("Dialog", 0, 14));
	dialplot.addScale(0, standarddialscale);
	dialplot.addPointer(new org.jfree.chart.plot.dial.DialPointer.Pin());
	DialCap dialcap = new DialCap();
	dialplot.setCap(dialcap);
	return new JFreeChart(s, dialplot);
}
 

import org.jfree.chart.plot.dial.DialValueIndicator; //导入依赖的package包/类
private ChartPanel buildDialPlot(int minimumValue, int maximumValue,int majorTickGap) {
  plot = new DialPlot(dataset);
  plot.setDialFrame(new StandardDialFrame());
  plot.addLayer(new DialValueIndicator());
  plot.addLayer(new DialPointer.Pointer());

  StandardDialScale scale = new StandardDialScale(minimumValue, maximumValue,-120, -300, majorTickGap, majorTickGap - 1);
  scale.setTickRadius(0.88);
  scale.setTickLabelOffset(0.20);
  plot.addScale(0, scale);
  return new ChartPanel(new JFreeChart(plot));
}
 

import org.jfree.chart.plot.dial.DialValueIndicator; //导入依赖的package包/类
/**
 * Two objects that are equal are required to return the same hashCode.
 */
public void testHashCode() {
    DialValueIndicator i1 = new DialValueIndicator(0);
    DialValueIndicator i2 = new DialValueIndicator(0);
    assertTrue(i1.equals(i2));
    int h1 = i1.hashCode();
    int h2 = i2.hashCode();
    assertEquals(h1, h2);
}
 

import org.jfree.chart.plot.dial.DialValueIndicator; //导入依赖的package包/类
private void fillChart(String title, float value, int lowerBound, int upperBound) throws Exception {
	DefaultValueDataset dataset = new DefaultValueDataset();
	
	dataset.setValue(value);

	DialPlot plot = new DialPlot();
	plot.setView(0.0d, 0.0d, 1.0d, 1.0d);
	plot.setDataset(0, dataset);
	
	StandardDialFrame frame = new StandardDialFrame();
	plot.setDialFrame(frame);
	DialBackground dialBackground = new DialBackground();
	dialBackground.setGradientPaintTransformer(
			new StandardGradientPaintTransformer(GradientPaintTransformType.VERTICAL));
	plot.setBackground(dialBackground);
	DialTextAnnotation textAnnotation = new DialTextAnnotation( title );
	textAnnotation.setRadius(0.555555555555555555D);
	plot.addLayer(textAnnotation);
	
	DialValueIndicator valueIndicator = new DialValueIndicator(0);
	plot.addLayer(valueIndicator);
	
	StandardDialScale scale1 = new StandardDialScale();
	scale1.setLowerBound( lowerBound );
	scale1.setUpperBound( upperBound );
	scale1.setStartAngle( -140 ); // -120
	scale1.setExtent( -260D ); // -300D 
	scale1.setTickRadius(0.88D);
	scale1.setTickLabelOffset(0.14999999999999999D); 
	scale1.setTickLabelFont(new Font("", Font.TRUETYPE_FONT, 14)); 
	plot.addScale(0, scale1);
	
	StandardDialRange standarddialrange0 = new StandardDialRange( lowerBound, (upperBound*0.6), Color.red);
	standarddialrange0.setInnerRadius(0.52000000000000002D);
	standarddialrange0.setOuterRadius(0.55000000000000004D);
	plot.addLayer(standarddialrange0);
	
	StandardDialRange standarddialrange1 = new StandardDialRange( (upperBound*0.6), (upperBound*0.8), Color.orange);
	standarddialrange1.setInnerRadius(0.52000000000000002D);
	standarddialrange1.setOuterRadius(0.55000000000000004D);
	plot.addLayer(standarddialrange1);
	
	StandardDialRange standarddialrange2 = new StandardDialRange( (upperBound*0.8), upperBound, Color.green);
	standarddialrange2.setInnerRadius(0.52000000000000002D);
	standarddialrange2.setOuterRadius(0.55000000000000004D);
	plot.addLayer(standarddialrange2);
	
	Pointer pointer = new Pointer(0); 
	pointer.setFillPaint(new Color(144, 196, 246));
	plot.addPointer(pointer);
	plot.mapDatasetToScale(0, 0);
	DialCap dialcap = new DialCap();
	dialcap.setRadius(0.0700000000000001D);
	plot.setCap(dialcap);
	
	this.chart = new JFreeChart(plot);
	//this.chart.setBackgroundPaint(new Color(234, 244, 253));
	this.chart.setBackgroundPaint( Color.white );
}