meterchartdemo2.java

很好的制作统计图表的代码

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// Decompiler options: packimports(3) 

package org.jfree.chart.demo;

import java.awt.Color;
import java.awt.Dimension;
import javax.swing.JPanel;
import org.jfree.chart.ChartPanel;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.plot.MeterInterval;
import org.jfree.chart.plot.MeterPlot;
import org.jfree.data.Range;
import org.jfree.data.general.DefaultValueDataset;
import org.jfree.data.general.ValueDataset;
import org.jfree.ui.ApplicationFrame;
import org.jfree.ui.RefineryUtilities;

public class MeterChartDemo2 extends ApplicationFrame
{

    public MeterChartDemo2(String s)
    {
        super(s);
        DefaultValueDataset defaultvaluedataset = new DefaultValueDataset(55D);
        JFreeChart jfreechart = createChart(defaultvaluedataset);
        ChartPanel chartpanel = new ChartPanel(jfreechart);
        chartpanel.setPreferredSize(new Dimension(500, 270));
        setContentPane(chartpanel);
    }

    private static JFreeChart createChart(ValueDataset valuedataset)
    {
        MeterPlot meterplot = new MeterPlot(valuedataset);
        meterplot.addInterval(new MeterInterval("Normal", new Range(10D, 20D)));
        meterplot.setDialOutlinePaint(Color.white);
        JFreeChart jfreechart = new JFreeChart("Meter Chart", JFreeChart.DEFAULT_TITLE_FONT, meterplot, false);
        return jfreechart;
    }

    public static JPanel createDemoPanel()
    {
        JFreeChart jfreechart = createChart(new DefaultValueDataset(55D));
        return new ChartPanel(jfreechart);
    }

    public static void main(String args[])
    {
        MeterChartDemo2 meterchartdemo2 = new MeterChartDemo2("Meter Chart Demo 2");
        meterchartdemo2.pack();
        RefineryUtilities.centerFrameOnScreen(meterchartdemo2);
        meterchartdemo2.setVisible(true);
    }
}