multipledatasetdemo1.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 5:13:51 PM
// Home Page : http://members.fortunecity.com/neshkov/dj.html  - Check often for new version!
// Decompiler options: packimports(3) 

package org.jfree.chart.demo;

import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JPanel;
import org.jfree.chart.*;
import org.jfree.chart.axis.NumberAxis;
import org.jfree.chart.axis.ValueAxis;
import org.jfree.chart.plot.XYPlot;
import org.jfree.chart.renderer.xy.StandardXYItemRenderer;
import org.jfree.data.time.*;
import org.jfree.ui.*;

public class MultipleDatasetDemo1 extends ApplicationFrame
    implements ActionListener
{

    public MultipleDatasetDemo1(String s)
    {
        super(s);
        datasetIndex = 0;
        TimeSeriesCollection timeseriescollection = createRandomDataset("Series 1");
        JFreeChart jfreechart = ChartFactory.createTimeSeriesChart("Multiple Dataset Demo 1", "Time", "Value", timeseriescollection, true, true, false);
        jfreechart.setBackgroundPaint(Color.white);
        plot = jfreechart.getXYPlot();
        plot.setBackgroundPaint(Color.lightGray);
        plot.setDomainGridlinePaint(Color.white);
        plot.setRangeGridlinePaint(Color.white);
        plot.setAxisOffset(new RectangleInsets(4D, 4D, 4D, 4D));
        ValueAxis valueaxis = plot.getDomainAxis();
        valueaxis.setAutoRange(true);
        NumberAxis numberaxis = new NumberAxis("Range Axis 2");
        numberaxis.setAutoRangeIncludesZero(false);
        JPanel jpanel = new JPanel(new BorderLayout());
        ChartPanel chartpanel = new ChartPanel(jfreechart);
        jpanel.add(chartpanel);
        JButton jbutton = new JButton("Add Dataset");
        jbutton.setActionCommand("ADD_DATASET");
        jbutton.addActionListener(this);
        JButton jbutton1 = new JButton("Remove Dataset");
        jbutton1.setActionCommand("REMOVE_DATASET");
        jbutton1.addActionListener(this);
        JPanel jpanel1 = new JPanel(new FlowLayout());
        jpanel1.add(jbutton);
        jpanel1.add(jbutton1);
        jpanel.add(jpanel1, "South");
        chartpanel.setPreferredSize(new Dimension(500, 270));
        setContentPane(jpanel);
    }

    private TimeSeriesCollection createRandomDataset(String s)
    {
        TimeSeries timeseries = new TimeSeries(s);
        double d = 100D;
        Object obj = new Day();
        for(int i = 0; i < 50; i++)
        {
            timeseries.add(((RegularTimePeriod) (obj)), d);
            obj = ((RegularTimePeriod) (obj)).next();
            d *= 1.0D + Math.random() / 100D;
        }

        return new TimeSeriesCollection(timeseries);
    }

    public void actionPerformed(ActionEvent actionevent)
    {
        if(actionevent.getActionCommand().equals("ADD_DATASET"))
        {
            if(datasetIndex < 20)
            {
                datasetIndex++;
                plot.setDataset(datasetIndex, createRandomDataset("S" + datasetIndex));
                plot.setRenderer(datasetIndex, new StandardXYItemRenderer());
            }
        } else
        if(actionevent.getActionCommand().equals("REMOVE_DATASET") && datasetIndex >= 1)
        {
            plot.setDataset(datasetIndex, null);
            plot.setRenderer(datasetIndex, null);
            datasetIndex--;
        }
    }

    public static void main(String args[])
    {
        MultipleDatasetDemo1 multipledatasetdemo1 = new MultipleDatasetDemo1("Multiple Dataset Demo 1");
        multipledatasetdemo1.pack();
        RefineryUtilities.centerFrameOnScreen(multipledatasetdemo1);
        multipledatasetdemo1.setVisible(true);
    }

    private XYPlot plot;
    private int datasetIndex;
}