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2007年7月29日星期日

JFreeChart Real time XY Chart 

package com.cityinforport.demo;
/**
 * =============================================================
 * JFreeChart开发：利用JFreeChart开发实时曲线
 * =============================================================
 * Description:该例子演示了单条曲线的简单使用方法
 * Original Author:谢莫锋  QQ:35814522 EMAIL:xmf3000@126.com created by 2005-02-28
 *
 * Changes:
 * -------------------------------------------------------------
 * 2005-03-01 增加线程调用 by xmf
 * 2005-03-02 界面调整 by xmf
 * -------------------------------------------------------------
 */

//导入java2d包
import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.*;
import java.io.PrintStream;
//导入jfreechart包(chart)
import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartPanel;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.axis.ValueAxis;
import org.jfree.chart.plot.XYPlot;
//导入jfreechart包(data)
import org.jfree.data.time.*;
import org.jfree.data.xy.XYDataset;
//导入jfreechart包(ui)
import org.jfree.ui.ApplicationFrame;
import org.jfree.ui.RefineryUtilities;

public class TimeSeriesDemo1 extends JFrame implements Runnable,ActionListener{
    //时序图数据集
    private TimeSeries timeseries;
    //Value坐标轴初始值
    private double lastValue;
    static Class class$org$jfree$data$time$Millisecond;
    static Thread thread1;
    
    public static void main(String[] args){
        TimeSeriesDemo1 TimeSeriesDemo1 = new TimeSeriesDemo1();
        TimeSeriesDemo1.pack();
        RefineryUtilities.centerFrameOnScreen(TimeSeriesDemo1);
        TimeSeriesDemo1.setVisible(true);
        startThread();
    }
    
    public void run(){
        while(true){
            try{
                //根据实际需要在此处加入需要执行的代码
                double d = 0.9D + 0.2D * Math.random();
                lastValue = lastValue * d;
                Millisecond millisecond = new Millisecond();
                System.out.println("Now=" + millisecond.toString());
                timeseries.add(millisecond, lastValue);
                Thread.sleep(300);
            }catch(InterruptedException e){}
        }
    }
    
    public static void startThread(){
        thread1.start();
    }
    
    public void actionPerformed(ActionEvent e){
        if(e.getActionCommand().equals("EXIT")){
            thread1.destroy();
            System.exit(0);
        }
    }
    
    
    public TimeSeriesDemo1(){
        //super(new BorderLayout());
        thread1 = new Thread(this);
        lastValue = 100D;
        //创建时序图对象
        timeseries = new TimeSeries("Random Data",TimeSeriesDemo1.class$org$jfree$data$time$Millisecond != null ? TimeSeriesDemo1.class$org$jfree$data$time$Millisecond : (TimeSeriesDemo1.class$org$jfree$data$time$Millisecond = TimeSeriesDemo1.getClass("org.jfree.data.time.Millisecond")));
        TimeSeriesCollection timeseriescollection = new TimeSeriesCollection(timeseries);
        //创建图表面板
        ChartPanel chartpanel = new ChartPanel(createChart(timeseriescollection));
        chartpanel.setPreferredSize(new Dimension(500,270));
        
        JPanel jpanel = new JPanel();
        jpanel.setBorder(BorderFactory.createEmptyBorder(4,4,4,4));//边距为4
        JButton jbutton = new JButton("退出");
        jbutton.setActionCommand("EXIT");
        jbutton.addActionListener(this);
        jpanel.add(jbutton);
        
        getContentPane().add(chartpanel);
        getContentPane().add(jpanel,"South");
    }
    
    private JFreeChart createChart(XYDataset xydataset){
        JFreeChart jfreechart = ChartFactory.createTimeSeriesChart("时序图例子","时间","温度值",xydataset,true,true,false);
        XYPlot xyplot = jfreechart.getXYPlot();
        //纵坐标设定
        ValueAxis valueaxis = xyplot.getDomainAxis();
        valueaxis.setAutoRange(true);
        valueaxis.setFixedAutoRange(60000D);
        
        valueaxis = xyplot.getRangeAxis();
        valueaxis.setRange(0.0D,200D);
        
        return jfreechart;
    }
    
    static Class getClass(String s){
        Class cls = null;
        try{
            cls = Class.forName(s);
        }catch(ClassNotFoundException cnfe){
            throw new NoClassDefFoundError(cnfe.getMessage());
        }
        return cls;
    }
    
}

 


 


package com.cityinforport.demo;
/**
 * =============================================================
 * JFreeChart开发：利用JFreeChart开发实时曲线
 * =============================================================
 * Description:该例子演示了多条曲线的简单使用方法
 * Original Author:xmf created by 2005-03-03
 *
 * Changes:
 * -------------------------------------------------------------
 * 在此处注明修改日期、修改点、修改人
 * -------------------------------------------------------------
 */

//导入java2d包
import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.Color;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.*;
import java.io.PrintStream;
//导入jfreechart包(chart)
import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartPanel;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.axis.ValueAxis;
import org.jfree.chart.plot.XYPlot;
import org.jfree.chart.renderer.xy.DefaultXYItemRenderer;
//导入jfreechart包(data)
import org.jfree.data.time.*;
import org.jfree.data.xy.XYDataset;
//导入jfreechart包(ui)
import org.jfree.ui.*;

public class TimeSeriesDemo2 extends JFrame implements Runnable,ActionListener{
    
    //申明实时曲线对象
    private TimeSeries timeseries1;
    private TimeSeries timeseries2;
    
    //Value坐标轴初始值
    private double lastValue1,lastValue2;
    private double originalValue1,originalValue2;
    
    static Class class$org$jfree$data$time$Millisecond;
    static Thread thread1;
    
    public static void main(String[] args){
        TimeSeriesDemo2 TimeSeriesDemo2 = new TimeSeriesDemo2();
        TimeSeriesDemo2.pack();
        RefineryUtilities.centerFrameOnScreen(TimeSeriesDemo2);
        TimeSeriesDemo2.setVisible(true);
        startThread();
    }
    
    public void run(){
        while(true){
            try{
                //说明：在此处添加具体的业务数据
                
                //随机产生曲线1的数据
                double d1 = 2.0D * Math.random();
                lastValue1 = originalValue1 * d1;
                Millisecond millisecond1 = new Millisecond();
                System.out.println("Series1 Now=" + millisecond1.toString());
                timeseries1.add(millisecond1, lastValue1);
                //随机产生曲线2的数据
                double d2 = 2.0D * Math.random();
                lastValue2 = originalValue2 * d2;
                Millisecond millisecond2 = new Millisecond();
                System.out.println("Series2 Now=" + millisecond2.toString());
                timeseries2.add(millisecond2,lastValue2);
                
                Thread.sleep(500);
            }catch(InterruptedException e){}
        }
    }
    
    public static void startThread(){
        thread1.start();
    }
    
    public void actionPerformed(ActionEvent e){
        if(e.getActionCommand().equals("EXIT")){
            thread1.interrupt();
            System.exit(0);
        }
    }
    
    
    public TimeSeriesDemo2(){
        thread1 = new Thread(this);
        originalValue1 = 100D;
        originalValue2 = 100D;
        //创建时序图对象
        timeseries1  = new TimeSeries("热风温1",TimeSeriesDemo2.class$org$jfree$data$time$ Millisecond != null ? TimeSeriesDemo2.class$org$jfree$data$time$Millisecond : (TimeSeriesDemo2.class$org$jfree$data$time$Millisecond = TimeSeriesDemo2.getClass("org.jfree.data.time.Millisecond")));
        timeseries2  = new TimeSeries("热风温2",TimeSeriesDemo2.class$org$jfree$data$time$ Millisecond != null ? TimeSeriesDemo2.class$org$jfree$data$time$Millisecond : (TimeSeriesDemo2.class$org$jfree$data$time$Millisecond = TimeSeriesDemo2.getClass("org.jfree.data.time.Millisecond")));
        TimeSeriesCollection timeseriescollection = new TimeSeriesCollection(timeseries1);
        TimeSeriesCollection timeseriescollection1 = new TimeSeriesCollection(timeseries2);
        
        //创建jfreechart对象
        JFreeChart jfreechart = ChartFactory.createTimeSeriesChart("RTU温度模拟量实时曲线图","Time","Value",
                timeseriescollection,true,true,false);
        jfreechart.setBackgroundPaint(Color.white);
        
        //设定显示风格
        XYPlot xyplot = jfreechart.getXYPlot();
        xyplot.setBackgroundPaint(Color.lightGray);
        xyplot.setDomainGridlinePaint(Color.white);
        xyplot.setRangeGridlinePaint(Color.white);
        xyplot.setAxisOffset(new Spacer(1, 4D, 4D, 4D, 4D));
        ValueAxis valueaxis = xyplot.getDomainAxis();
        valueaxis.setAutoRange(true);
        valueaxis.setFixedAutoRange(60000D);
        //设定Value的范围
        valueaxis = xyplot.getRangeAxis();
        valueaxis.setRange(0.0D,200D);
        xyplot.setDataset(1, timeseriescollection1);
        xyplot.setRenderer(1,new DefaultXYItemRenderer());
        
        //创建图表面板
        ChartPanel chartpanel = new ChartPanel(jfreechart);
        getContentPane().add(chartpanel);
        
        //根据需要添加操作按钮
        this.setTitle("RTU实时曲线");
        JPanel jpanel = new JPanel();
        jpanel.setBorder(BorderFactory.createEmptyBorder(4,4,4,4));//边距为4
        JButton jbutton = new JButton("退出");
        jbutton.setActionCommand("EXIT");
        jbutton.addActionListener(this);
        jpanel.add(jbutton);
        getContentPane().add(jpanel,"South");
        chartpanel.setPreferredSize(new Dimension(500,270));
    }
    
    static Class getClass(String s){
        Class cls = null;
        try{
            cls = Class.forName(s);
        }catch(ClassNotFoundException cnfe){
            throw new NoClassDefFoundError(cnfe.getMessage());
        }
        return cls;
    }
    
}

摘自http://blog.yesky.com/blog/cqfz/archive/2005/07/13/219687.html

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