bubblechartdemo2.java

jfreechart1.0.6源程序,没有注释,不过都能运行起来

package demo;

import java.awt.Color;
import java.awt.Dimension;
import javax.swing.JPanel;
import org.jfree.chart.*;
import org.jfree.chart.axis.NumberAxis;
import org.jfree.chart.labels.*;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.chart.plot.XYPlot;
import org.jfree.chart.renderer.xy.XYBubbleRenderer;
import org.jfree.chart.renderer.xy.XYItemRenderer;
import org.jfree.data.xy.XYZDataset;
import org.jfree.ui.*;

// Referenced classes of package demo:
//            SampleXYZDataset2

public class BubbleChartDemo2 extends ApplicationFrame
{

    public BubbleChartDemo2(String s)
    {
        super(s);
        JPanel jpanel = createDemoPanel();
        jpanel.setPreferredSize(new Dimension(500, 270));
        setContentPane(jpanel);
    }

    private static JFreeChart createChart(XYZDataset xyzdataset)
    {
        JFreeChart jfreechart = ChartFactory.createBubbleChart("Bubble Chart Demo 2", "X", "Y", xyzdataset, PlotOrientation.VERTICAL, true, true, false);
        XYPlot xyplot = (XYPlot)jfreechart.getPlot();
        xyplot.setRenderer(new XYBubbleRenderer(0));
        xyplot.setForegroundAlpha(0.65F);
        XYItemRenderer xyitemrenderer = xyplot.getRenderer();
        xyitemrenderer.setSeriesPaint(0, Color.blue);
        xyitemrenderer.setBaseItemLabelGenerator(new BubbleXYItemLabelGenerator());
        xyitemrenderer.setBaseToolTipGenerator(new StandardXYZToolTipGenerator());
        xyitemrenderer.setBaseItemLabelsVisible(true);
        xyitemrenderer.setBasePositiveItemLabelPosition(new ItemLabelPosition(ItemLabelAnchor.CENTER, TextAnchor.CENTER));
        NumberAxis numberaxis = (NumberAxis)xyplot.getDomainAxis();
        numberaxis.setRange(0.0D, 10D);
        NumberAxis numberaxis1 = (NumberAxis)xyplot.getRangeAxis();
        numberaxis1.setRange(0.0D, 10D);
        return jfreechart;
    }

    public static JPanel createDemoPanel()
    {
        JFreeChart jfreechart = createChart(new SampleXYZDataset2());
        return new ChartPanel(jfreechart);
    }

    public static void main(String args[])
    {
        BubbleChartDemo2 bubblechartdemo2 = new BubbleChartDemo2("Bubble Chart Demo 2");
        bubblechartdemo2.pack();
        RefineryUtilities.centerFrameOnScreen(bubblechartdemo2);
        bubblechartdemo2.setVisible(true);
    }
}