Affichage Oscillogramme 2D Saccadé

Bonjour, je suis novice en java.
Je cherche à afficher un oscillogramme 2D en java de manière dynamique, sans que l'écran de l'oscillogramme et la courbe ne saccadent.
Voici les programme en pièce jointe où j'ai le problème d'affichage:
programme MyCan.java

Code:

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package test1;
 
import java.awt.*;
import java.awt.image.*;
import java.awt.event.*;
import java.awt.geom.*;
import java.lang.Math.*;
import javax.swing.*;
 
import test1.MyGraph.ThreadRendering;
 
 
 
 
public class MyCan extends Canvas {
 
    ThreadRendering renderingthread = new ThreadRendering();
    float hauteur;
    float largeur;
    static float Vmax;
    float T;
    float X;
    float Y;
    //Vector Points;
    //int painted;
    static float n;
    Graphics gr;
    ThreadAffichage ta;
 
    public MyCan() {
        super();
        //this.Points=Points;
        setBackground(Color.black);
        setBounds(50,10,550,380);
        renderingthread.start();
    }
 
    public static void LVoltScale() {
        String lts=(String)(PanelGraphicTest.levelscale).getSelectedItem();
        if(lts=="100mV/div") {
            Vmax=1F;
        }
        else if(lts=="200mV/div") {
            Vmax=0.5F;
        }
        else if(lts=="500mV/div") {
            Vmax=0.2F;
        }
        else if(lts=="1V/div") {
            Vmax=0.1F;
        }
        else if(lts=="2V/div") {
            Vmax=0.05F;
        }
        else if(lts=="5V/div") {
            Vmax=0.02F;
        }
    }
 
    public static void STimeScale() {
        String stc=(String)(PanelGraphicTest.timescale).getSelectedItem();
        if(stc=="200µs/div") {
            n=0.2F;
        }
        else if(stc=="500µs/div") {
            n=0.5F;
        }
        else if(stc=="1ms/div") {
            n=1;
        }
        else if(stc=="2ms/div") {
            n=2;
        }
        else if(stc=="5ms/div") {
            n=5;
        }
        else if(stc=="10ms/div") {
            n=10;
        }
        else if(stc=="20ms/div") {
            n=20;
        }
        else if(stc=="50ms/div") {
            n=50;
        }
        else if(stc=="100ms/div") {
            n=100;
        }
        else if(stc=="200ms/div") {
            n=200;
        }
    }
 
 
    public void paint(Graphics screen) {
 
        Graphics2D screen2D = (Graphics2D)screen;
        hauteur = (float) getSize().height;
        largeur = (float) getSize().width;
        X=largeur/2;
        Y=hauteur/2;
        //Font font = new Font("Dialog", Font.PLAIN, 12);
        LVoltScale();
        STimeScale();
        T=largeur/n;
 
        screen2D.setColor(Color.pink);
        Rectangle2D.Float R1 = new Rectangle2D.Float(0F,hauteur/2,largeur,2F);
        screen2D.fill(R1);
        screen2D.draw(R1);
        Line2D.Float v5 = new Line2D.Float(5F*largeur/10F,0F,5F*largeur/10F,hauteur);
        screen2D.draw(v5);
        screen2D.setColor(Color.pink);
 
        Line2D.Float l1 = new Line2D.Float(0F,1F*hauteur/10F,largeur,1F*hauteur/10F);
        Line2D.Float l2 = new Line2D.Float(0F,2F*hauteur/10F,largeur,2F*hauteur/10F);
        Line2D.Float l3 = new Line2D.Float(0F,3F*hauteur/10F,largeur,3F*hauteur/10F);
        Line2D.Float l4 = new Line2D.Float(0F,4F*hauteur/10F,largeur,4F*hauteur/10F);
 
        Line2D.Float l6 = new Line2D.Float(0F,6F*hauteur/10F,largeur,6F*hauteur/10F);
        Line2D.Float l7 = new Line2D.Float(0F,7F*hauteur/10F,largeur,7F*hauteur/10F);
        Line2D.Float l8 = new Line2D.Float(0F,8F*hauteur/10F,largeur,8F*hauteur/10F);
        Line2D.Float l9 = new Line2D.Float(0F,9F*hauteur/10F,largeur,9F*hauteur/10F);
 
        screen2D.draw(l1);
        screen2D.draw(l2);
        screen2D.draw(l3);
        screen2D.draw(l4);
        screen2D.draw(l6);
        screen2D.draw(l7);
        screen2D.draw(l8);
        screen2D.draw(l9);
 
        Line2D.Float v1 = new Line2D.Float(1F*largeur/10F,0F,1F*largeur/10F,hauteur);
        Line2D.Float v2 = new Line2D.Float(2F*largeur/10F,0F,2F*largeur/10F,hauteur);
        Line2D.Float v3 = new Line2D.Float(3F*largeur/10F,0F,3F*largeur/10F,hauteur);
        Line2D.Float v4 = new Line2D.Float(4F*largeur/10F,0F,4F*largeur/10F,hauteur);
        Line2D.Float v6 = new Line2D.Float(6F*largeur/10F,0F,6F*largeur/10F,hauteur);
        Line2D.Float v7 = new Line2D.Float(7F*largeur/10F,0F,7F*largeur/10F,hauteur);
        Line2D.Float v8 = new Line2D.Float(8F*largeur/10F,0F,8F*largeur/10F,hauteur);
        Line2D.Float v9 = new Line2D.Float(9F*largeur/10F,0F,9F*largeur/10F,hauteur);
 
        screen2D.draw(v1);
        screen2D.draw(v2);
        screen2D.draw(v3);
        screen2D.draw(v4);
        screen2D.draw(v6);
        screen2D.draw(v7);
        screen2D.draw(v8);
        screen2D.draw(v9);
 
 
        float tab[]=new float[(int)largeur];
        for(int i=0; i<(int)largeur; i++)
            tab[i]=0F;
            //0F;
        GeneralPath fsignal = new GeneralPath();
        //setIgnoreRepaint(false);
        //repaint();
        ta = new ThreadAffichage();
        //System.out.println(cpt);
        //paint(screen);
        System.out.println(ActionCom.K);
        if(ActionCom.K==1) {
 
            //y = this.generate(0F);
            //fsignal.moveTo(0F,y);
 
            for(int i=0; i<(int)largeur; i++) {
                    tab[i]=0F;
                }
            for(int i=0; i<(int)largeur; i++) {
                fsignal.moveTo(0F,tab[i]);
            }
 
 
            for(int i=0; i<(int)largeur; i++) {
                //y=this.generate(i);
                tab[i]=this.generate(i);
            }
            for(int i=0; i<(int)largeur; i++)
                fsignal.lineTo(i,tab[i]);
 
            screen2D.setColor(Color.yellow);
            screen2D.draw(fsignal);
                //repaint();
 
            System.out.println("signal dessiné");
 
 
 
        }
 
        else if(ActionCom.K==2){
 
            for(int i=0; i<(int)largeur; i++) {
                tab[i]=0F;
            }
            for(int i=0; i<(int)largeur; i++) {
                fsignal.moveTo(0F,tab[i]);
            }
            screen2D.draw(fsignal);
            //repaint();
            //validate();
            System.out.println("signal efface");
 
        }
        //try{Thread.sleep(0);
            //}
        //catch(Exception e){}
    }
 
 
 
    public float generate(float x) {
        //repaint();
        double a = (double)(x*2F*Math.PI/T);
        float result=0F;
 
        result = (float)(Y-((Vmax*hauteur/2)*Math.sin(a)));
 
        return result;
    }
 
    class ThreadRendering extends Thread {
        public void run() {
            while(true) {
                try {
 
                    repaint();
                    sleep(50);
                }
                catch(Exception ex) {
                    System.err.println(ex);
                }
            }
        }
    }
}

programme ScopeTest.java :

Code:

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package test1;
 
import java.awt.*;
import java.awt.event.*;
import java.awt.image.*;
import java.awt.geom.*;
import java.lang.Math.*;
import javax.swing.*;
import java.util.Vector;
 
public class ScopeTest extends JPanel {
 
    public MyCan myc;
    //public MyGraph myg;
    public ActionCom ac;
    public static int n;
 
    public int i;
 
    //Graphics my_gr;
    //BufferStrategy my_buff_stra;
    //my_Thread_aff inst_my_thread;
 
    public ScopeTest() {
        super();
        myc=new MyCan();
        //myc = new MyCan();
        add(myc);
        //add(myc);
        setVisible(true);
        //this.setIgnoreRepaint(true);
    }
}    
    /*ùpublic MonCaneva get_my_can(){
        return can;
    }*/
 
    /*public void start_buff_stra(){
        
        if(this.isVisible()){
 
            System.out.println(" !!  visible *");
            this.createBufferStrategy(2);
            my_buff_stra = this.getBufferStrategy();
            my_gr = my_buff_stra.getDrawGraphics();
            
            inst_my_thread = new my_Thread_aff();
            inst_my_thread.start();
        }
        else{
            
            System.out.println(" ** pas visible *");
            
        }
    }*/
 
    /*private class my_Thread_aff extends Thread {
    
        public my_Thread_aff(){
        
        
        }
    
        public void run(){
            while(true){
                try{Thread.sleep(40);}
                catch(Exception e){}
            
                my_gr.setColor(Color.blue);
                my_gr.fillRect(0,0,200,100);
            
                my_buff_stra.show();
            }
        }
    
    }*/

voici les autres programmes pour exécuter le projet :
Programme PanelGraphicTest.java

Code:

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package test1;
 
import java.awt.Color;
import java.awt.Insets;
import java.awt.event.*;
import java.awt.*;
 
import javax.swing.*;
import javax.swing.border.BevelBorder;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;
 
public class PanelGraphicTest extends JPanel {
    //static PanelGraphicTest _instance = null;
    //private Test test;
    private ScopeTest oscillo;
    public static JButton jbGenerate;
    public static JButton jbStop;
    public static TimeScale timescale;
    public static LevelScale levelscale;
    public static ChoiceSignals chsi;
    int[] tabData1;
    Graphics buffer;
 
 
 
    protected PanelGraphicTest() {
        this.setLayout(null);
        oscillo = new ScopeTest();
        oscillo.setSize(607, 431);
        oscillo.setLocation(132,138);
        jbGenerate = new JButton();
        jbGenerate.setSize(80,23);
        jbGenerate.setLocation(5,5);
        jbGenerate.setMargin(new Insets(2,2,2,2));
        jbGenerate.setVisible(true);
        jbGenerate.setText("Generate");
        jbGenerate.addActionListener(new ActionCom(1));
        jbStop = new JButton();
        jbStop.setSize(80,23);
        jbStop.setLocation(5,5);
        jbStop.setMargin(new Insets(2,2,2,2));
        jbStop.setVisible(false);
        jbStop.setText("Stop");
        jbStop.addActionListener(new ActionCom(2));
        timescale = new TimeScale(false,"200µs/div","500µs/div","1ms/div","2ms/div","5ms/div","10ms/div","20ms/div","50ms/div", "100ms/div", "200ms/div");
        timescale.setSize(90,23);
        timescale.setLocation(5,50);
        timescale.setVisible(true);
        timescale.addActionListener(new ActionCmd(1));
        levelscale = new LevelScale(false,"100mV/div","200mV/div","500mV/div","1V/div","2V/div","5V/div");
        levelscale.setSize(100,23);
        levelscale.setLocation(100,50);
        levelscale.addActionListener(new ActionCmd(2));
        chsi = new ChoiceSignals(false,"sinus","carré","triangle","rampe");
        chsi.setSize(80,23);
        chsi.setLocation(5,80);
        chsi.addActionListener(new ActionCmd(3));
 
        this.add(oscillo, null);
        this.add(jbGenerate, null);
        this.add(jbStop, null);
        this.add(timescale,null);
        this.add(levelscale, null);
        this.add(chsi, null);
 
        this.setVisible(true);
    }
 
    /*public static PanelGraphicTest getInstance() {
        return(_instance == null) ? _instance = new PanelGraphicTest() : _instance; 
    }*/
 
 
 
    /*class ActionGenerate implements ActionListener {
        public void actionPerformed(ActionEvent ae) {
            test.repaint();
        }*/
 
 
    }

Programme PGTest.java :

Code:

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package test1;
 
import java.awt.*;
import javax.swing.*;
 
public class PGTest extends JPanel {
    BorderLayout borderlayout1 = new BorderLayout();
    JTabbedPane jscrollPanel = new JTabbedPane();
    PanelGraphicTest panelGT = new PanelGraphicTest();
 
    public PGTest() {
        try {
            this.setLayout(borderlayout1);
            jscrollPanel.setForeground(java.awt.Color.blue);
 
            jscrollPanel.add(panelGT);
            this.add(jscrollPanel,java.awt.BorderLayout.CENTER);
            this.setVisible(true);
        }
        catch(Exception ex) {
            ex.printStackTrace();
        }
    }
 
}

Programme FGTest.java :

Code:

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package test1;
 
import java.awt.*;
 
import javax.swing.*;
 
public class FGTest extends JFrame {
    JPanel contentPane;
    BorderLayout borderlayout1 = new BorderLayout();
    PGTest pgtest7 = new PGTest();
 
    public FGTest() {
 
        try {
            setDefaultCloseOperation(EXIT_ON_CLOSE);
            contentPane=(JPanel)getContentPane();
            contentPane.setLayout(borderlayout1);
            setSize(new Dimension(1300,900));
            setTitle("Test");
            contentPane.add(pgtest7,java.awt.BorderLayout.CENTER);
            this.setVisible(true);
            }
        catch (Exception exception) {
            exception.printStackTrace();
        }
    }
 
 
}

Voici les programme d'actionlistener et principaux :
Programme Appli.java :

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package test1;
 
import javax.swing.*;
 
/**
 * <p>Title: OUTILS PG5</p>
 * <p>Description: MMI for Sonar Application</p>
 * <p>Copyright: Copyright (c) 2005</p>
 * <p>Company: THALES UNDERWATER SYSTEM</p>
 * @author PG5
 * @version 1.0
 */
public class Appli extends JFrame
{
 
    /**
     * Set the Main Frame
     *
     */
  public Appli() 
  {
    FGTest frame = new FGTest();
    frame.validate();
    frame.setSize(900,900);
    frame.setResizable(true);
    pack();
    frame.setVisible(true); 
  }
 
  public static void main(String[] args) 
  {
      new Appli();
 
  }
}

programme ActionCom.java :

Code:

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package test1;
 
import java.awt.event.*;
import javax.swing.*;
import java.io.IOException;
 
public class ActionCom implements ActionListener {
 
    private int c;
    public static int K,L;
    public boolean finacq;
    public MyCan mc;
    //public ThreadRendering tr;
 
    public ActionCom(int c) {
        this.c=c;
        mc = new MyCan();
    }
 
    public void actionPerformed(ActionEvent ae) {
 
        //sc1.repaint();
        //TA = new ThreadAffichage();
 
        //sc1.get_my_can().start_buff_stra();
 
        switch(c) {
 
        case 1:
            K=c;
            System.out.println(K);
            //finacq=false;
            PanelGraphicTest.jbGenerate.setVisible(false);
            PanelGraphicTest.jbStop.setVisible(true);
            //sc1.repaint();
            mc.renderingthread.start();
            mc.repaint();
            //TA.start();
 
            break;
 
        case 2:
            K=c;
            System.out.println(K);
            //finacq=true;
            PanelGraphicTest.jbStop.setVisible(false);
            PanelGraphicTest.jbGenerate.setVisible(true);
            //sc1.repaint();
            //TA.interrupt();
            mc.renderingthread.interrupt();
            mc.repaint();
            break;
 
 
 
        default:
            break;
 
        }
 
 
 
    }
}

programme ActionCmd.java:

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package test1;
 
import java.awt.event.*;
import javax.swing.*;
 
public class ActionCmd implements ActionListener {
 
    private int a;
 
    public ActionCmd(int a) {
        this.a=a;
    }
 
    public void actionPerformed(ActionEvent ae) {
        switch(a) {
            case 1:
                MyCan.STimeScale();
                break;
 
            case 2:
                MyCan.LVoltScale();
                break;
 
            //case 3:
            //    MonCaneva.TChoiceSignals();
            //    break;
        }
 
    }
}

Et Pour finir, voici les programmes LevelScale.java et TimeScale.java :

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package test1;
 
import javax.swing.JComboBox;
 
public class LevelScale extends JComboBox {
    public LevelScale(boolean b, String l0, String l1, String l2, String l3, String l4, String l5) {
        setEditable(b);
        addItem(l0);
        addItem(l1);
        addItem(l2);
        addItem(l3);
        addItem(l4);
        addItem(l5);
    }
}

Code:

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package test1;
 
import javax.swing.JComboBox;
 
public class TimeScale extends JComboBox {
    public TimeScale(boolean b, String t0, String t1, String t2, String t3, String t4, String t5, String t6, String t7, String t8, String t9) {
        setEditable(b);
        addItem(t0);
        addItem(t1);
        addItem(t2);
        addItem(t3);
        addItem(t4);
        addItem(t5);
        addItem(t6);
        addItem(t7);
        addItem(t8);
        addItem(t9);
    }
}