c3.java~1~

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package java2d;
import java.awt.*;
import java.sql.*;
import java.awt.geom.Ellipse2D;
import java.awt.geom.Arc2D;
import java.awt.geom.AffineTransform;
import java.awt.geom.Line2D;
import java.awt.geom.Rectangle2D;
import java.util.*;
import java.sql.Connection;

public class C3 extends AnimatingSurface {

	//public long sleepAmount = 500;
        private Connection con;
		private String samptime,disptime;
		private int aw,ah;
		private int columnInc;
		private int pts[];
        private int ptNum;
		private float rtd;
		private double doubleResult;
        private Rectangle graphOutlineRect = new Rectangle();
        private Rectangle2D BartRect = new Rectangle2D.Float();
        private Rectangle2D muRect = new Rectangle2D.Float();
        private Line2D graphLine = new Line2D.Float();
        private Color graphColor = new Color(46, 139, 87);
        private Color mfColor = new Color(0, 100, 0);
		private float rectW=(float)40;

		//量程
		private int MI=10;
       
    public C3() {
        setBackground(Color.white);
		name="电流3";
		if (Java2Demo.connection!=null)
		{
			con=Java2Demo.connection;

		}
		 

	}


    public void reset(int w, int h) {
     
    }


    public void step(int w, int h) {
     
    }
	private void getdata(){
		if (Java2Demo.datapool!=null)
				{
					rtd=Java2Demo.datapool.getdataF("I3","current_table");
					realdata=rtd;
                    samptime=Java2Demo.datapool.getdataT("current_table");
                    disptime=samptime.substring(11,19);
					System.out.println(disptime);
					

				}

	}



      public void render(int w, int h, Graphics2D g2) {
         
	    g2.setBackground(Color.black);

            g2.clearRect(0,0,w,h);
            g2.setColor(graphColor);
			//draw grahpicoutlinerect
			int graphX=20;
			int graphY=30;
			//int graphW=w-graphX-5;
             int graphW=w-graphX-20;
			int graphH=h-graphY-5;
            //
			System.out.println("the width is:"+graphW);
            int LT=graphW/2;
            g2.setColor(Color.gray);
			g2.fill3DRect(graphX, graphY, graphW, graphH,true);
           
             //plot
			g2.setColor(Color.yellow);
            g2.drawString("电流3 实时数据     单位:毫安",graphX+graphW/4,graphY/2);
			
			int xcenter=graphX+graphW/2,ycenter=graphY+graphH/2+30;
			
            

			g2.setColor(Color.darkGray);
            g2.fill3DRect(xcenter-80,ycenter-100, 160,170,true);
			g2.setColor(Color.red);
			g2.fillOval(xcenter,ycenter-20,3,3);

			//plot Arc
			g2.setColor(Color.red);
			g2.drawArc(xcenter-80,ycenter-100,160,160,15,150);
			//g2.setColor(Color.darkGray);
            //g2.fillArc(xcenter-40,ycenter-60,80,80,15,150);
			
			
			

			//绘刻度
			g2.setColor(Color.yellow);
			g2.drawString("0",xcenter-80,ycenter-27);
            g2.drawLine(xcenter-80,ycenter-40,xcenter-80+(int)(Math.cos(Math.PI/12)*10),ycenter-40+(int)(Math.sin(Math.PI/12)*10));
            g2.drawString(""+MI/2,xcenter+3,ycenter-100+10);
			g2.drawLine(xcenter,ycenter-100,xcenter,ycenter-100+9);
			g2.drawString(""+MI,xcenter+65,ycenter-27);
			g2.drawLine(xcenter+80,ycenter-40,xcenter+80-(int)(Math.cos(Math.PI/12)*10),ycenter-40+(int)(Math.sin(Math.PI/12)*10));
			
            
			//get data
             getdata();
			//动态绘针
			int Xpoint=xcenter,Ypoint=ycenter-20;//指针起点
			double angle=rtd*Math.PI/12; //实际值换算后的角度
			
			g2.drawLine(Xpoint,Ypoint,Xpoint-(int)(Math.cos(Math.PI/12+angle)*60),Ypoint-(int)(Math.sin(Math.PI/12+angle)*60));
            
			//绘制分刻度
			

			//plot data
			int T[]=new int[4];
			T=parseF(rtd);

			drawDigit(g2,T[0],graphX+graphW/2-40,graphY+graphH-40,15,20);
			drawDigit(g2,T[1],graphX+graphW/2-20,graphY+graphH-40,15,20);
            
			g2.setColor(new Color(160,82,45));
            g2.fillRect(graphX+graphW/2,graphY+graphH-24,5,5);
             
			drawDigit(g2,T[2],graphX+graphW/2+10,graphY+graphH-40,15,20);
			drawDigit(g2,T[3],graphX+graphW/2+30,graphY+graphH-40,15,20);

			
			//set samptime
			g2.setColor(Color.yellow);
			g2.drawString(disptime,graphX+graphW/2-27,graphY+12);
               
				 }


    
}