xyseriesdemo3.java

很好的制作统计图表的代码

// Decompiled by DJ v3.7.7.81 Copyright 2004 Atanas Neshkov  Date: 7/18/2005 5:14:03 PM
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// Decompiler options: packimports(3) 

package org.jfree.chart.demo;

import java.awt.*;
import javax.swing.JPanel;
import org.jfree.chart.*;
import org.jfree.chart.plot.*;
import org.jfree.data.xy.*;
import org.jfree.ui.*;

public class XYSeriesDemo3 extends ApplicationFrame
{

    public XYSeriesDemo3(String s)
    {
        super(s);
        IntervalXYDataset intervalxydataset = createDataset();
        JFreeChart jfreechart = createChart(intervalxydataset);
        ChartPanel chartpanel = new ChartPanel(jfreechart);
        chartpanel.setPreferredSize(new Dimension(500, 270));
        setContentPane(chartpanel);
    }

    private static IntervalXYDataset createDataset()
    {
        XYSeries xyseries = new XYSeries("Random Data");
        xyseries.add(1.0D, 400.19999999999999D);
        xyseries.add(5D, 294.10000000000002D);
        xyseries.add(4D, 100D);
        xyseries.add(12.5D, 734.39999999999998D);
        xyseries.add(17.300000000000001D, 453.19999999999999D);
        xyseries.add(21.199999999999999D, 500.19999999999999D);
        xyseries.add(21.899999999999999D, null);
        xyseries.add(25.600000000000001D, 734.39999999999998D);
        xyseries.add(30D, 453.19999999999999D);
        XYSeriesCollection xyseriescollection = new XYSeriesCollection(xyseries);
        return xyseriescollection;
    }

    private static JFreeChart createChart(IntervalXYDataset intervalxydataset)
    {
        JFreeChart jfreechart = ChartFactory.createXYBarChart("XY Series Demo", "X", false, "Y", intervalxydataset, PlotOrientation.VERTICAL, true, true, false);
        XYPlot xyplot = (XYPlot)jfreechart.getPlot();
        IntervalMarker intervalmarker = new IntervalMarker(400D, 700D);
        intervalmarker.setLabel("Target Range");
        intervalmarker.setLabelFont(new Font("SansSerif", 2, 11));
        intervalmarker.setLabelAnchor(RectangleAnchor.LEFT);
        intervalmarker.setLabelTextAnchor(TextAnchor.CENTER_LEFT);
        intervalmarker.setPaint(new Color(222, 222, 255, 128));
        xyplot.addRangeMarker(intervalmarker, Layer.BACKGROUND);
        return jfreechart;
    }

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

    public static void main(String args[])
    {
        XYSeriesDemo3 xyseriesdemo3 = new XYSeriesDemo3("XY Series Demo 3");
        xyseriesdemo3.pack();
        RefineryUtilities.centerFrameOnScreen(xyseriesdemo3);
        xyseriesdemo3.setVisible(true);
    }
}