Vielleicht konnte ich die Frage nicht richtig formulieren. Lassen Sie mich erklären, dass ich ein Polardiagramm zeichnen möchte, das den Wert von Null aus startet und bis zum gewünschten Punkt füllt. Wenn ich ein Diagramm zeichne, wird so etwas angezeigt

Aber ich suche so etwas

Hier ist der Beispielcode

import java.awt.Color;
import java.awt.Dimension;
import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartPanel;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.PolarChartPanel;
import org.jfree.chart.plot.PolarPlot;
import org.jfree.chart.renderer.DefaultPolarItemRenderer;
import org.jfree.data.xy.XYDataset;
import org.jfree.data.xy.XYSeries;
import org.jfree.data.xy.XYSeriesCollection;
import org.jfree.ui.ApplicationFrame;
import org.jfree.ui.RefineryUtilities;

public class PolarCharDemo extends ApplicationFrame {
    private static final long serialVersionUID = 1L;
    double [][] myData = {{12.1,7.9,3.29,1.01,0,145},
                {12.6,8.4,3.22,1,0,145},
                {13.1,8.1,3.29,0.97,0,145},
                {10,7.5,3.22,0.93,0,145},
                {11.4,8.2,3.1,0.93,0,145},
                {11.7,7.3,2.99,0.9,0,145},
                {10.3,8,2.97,0.89,0,145},
                {8.8,7,3.05,0.9,0,145},
                {9.8,6.7,3.13,0.93,0,145},
                {11.1,7.1,3.05,0.91,0,145},
                {8.8,6.2,3.12,0.95,0,145},
                {9.6,7,2.82,0.44,2.3,5},
                {10.2,6.8,2.82,0.47,3.2,5},
                {9.4,6.8,2.76,0.41,2.9,5},
                {10,7,2.61,0.44,3.3,45},
                {12.8,8,2.95,0.49,2.2,50},
                {9.9,7.1,4.08,1.01,0.6,45},
                {7.1,4.4,2.23,0.4,1.5,5},
                {5,4,2.1,0.37,2.3,5},
                {7.2,4.1,2.17,0.37,1.5,5},
                {7.1,4.3,2.09,0.36,2,5},
                {5.1,4.1,2.17,0.38,2.1,5},
                {4.2,3.9,2.16,0.41,1.9,5},
                {4.9,3.9,2.08,0.35,2.5,5},
                {4.3,3.5,2.09,0.34,3,5}};
    /**
     * Creates a new instance of the demo.
     * 
     * @param title  the frame title.
     */
    public PolarCharDemo(final String title) {
        super(title);
        final XYDataset dataset = createAvgDataset();
        final JFreeChart chart = createChart(dataset);
        final ChartPanel chartPanel = new PolarChartPanel(chart);
        chartPanel.setPreferredSize(new Dimension(1000, 670));
        chartPanel.setEnforceFileExtensions(false);
        setContentPane(chartPanel);
    }
    /**
     * Creates a sample chart.
     * @param dataset  the dataset.
     * @return A sample chart.
     */
    private JFreeChart createChart(final XYDataset dataset) {
        final JFreeChart chart = ChartFactory.createPolarChart("", dataset, true, true, false); 
        final PolarPlot plot = (PolarPlot) chart.getPlot();
        plot.setBackgroundPaint(Color.WHITE);
        plot.setAngleGridlinePaint(Color.BLACK);
        plot.setRadiusGridlinePaint(Color.LIGHT_GRAY);

        final DefaultPolarItemRenderer renderer = (DefaultPolarItemRenderer) plot.getRenderer();
        renderer.setSeriesFilled(0, true);
        renderer.setSeriesPaint(0, Color.BLUE);
        renderer.setSeriesFilled(1, true);
        renderer.setSeriesPaint(1, Color.RED);
        renderer.setSeriesFilled(2, true);
        renderer.setSeriesPaint(2, Color.YELLOW);
        renderer.setSeriesFilled(3, true);
        renderer.setSeriesPaint(3, Color.GREEN);
        return chart;
    }
    /**
     * Creates an Average dataset.
     * @return An average dataset.
     */
    private XYDataset createAvgDataset() {    
        final XYSeriesCollection data = new XYSeriesCollection();
        XYSeries series0 = new XYSeries("Series1");
        XYSeries series1 = new XYSeries("Series2");
        XYSeries series2 = new XYSeries("Series3");
        for(int i=0;i<myData.length;i++)
        {
            series0.add(myData[i][5], myData[i][0]);
            series1.add(myData[i][5], myData[i][1]);
            series2.add(myData[i][5], myData[i][2]);
        }
        data.addSeries(series0);
        data.addSeries(series1);
        data.addSeries(series2);
        return data;
    }    

    /**
     * Main program that creates a thermometer and places it into
     * a JFrame.
     *
     * @param argv Command line arguements - none used.
     */
    public static void main(final String[] argv) {

        final PolarCharDemo demo = new PolarCharDemo("Polar Chart");
        demo.pack();
        RefineryUtilities.centerFrameOnScreen(demo);
        demo.setVisible(true);
    }   
}