timeseriesdemo2.java

一个小的门户的实现。

package chart.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 RectangleInsets(1, 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;
  }

}