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import java.awt.*;
import java.awt.event.*;
import java.applet.*;
public class projet2 extends Applet implements MouseMotionListener, ActionListener
{
int[] ax;
int ry;
double n1=1, n2=1.47;
double R1=10, R2=-10;
TextField tf1, tf2, tf3;
Label lb1, lb2, lb3, lb4, lb5;
public void init() {
ax = new int[4];
ax[0]=162;
ax[1]=248;
ax[2]=86;
ax[3]=332;
ry=250;
Panel p = new Panel (new GridLayout(4,4)); add(p);
p.add(new Label("Rayon D1 : "));
tf1 = new TextField("10.0"); p.add(tf1);
p.add(new Label("Rayon D2 : "));
tf2 = new TextField("-10.0"); p.add(tf2);
p.add(new Label("Indice N : "));
tf3 = new TextField("1.47"); p.add(tf3);
p.add(new Label("Point lumineux : "));
lb5 = new Label("0.00"); p.add(lb5);
p.add(new Label("Plan objet : "));
lb1 = new Label("86.0"); p.add(lb1);
p.add(new Label("Sommet D1 : "));
lb2 = new Label("162.00"); p.add(lb2);
p.add(new Label("Sommet D2 : "));
lb3 = new Label("248.0"); p.add(lb3);
p.add(new Label("Plan image : "));
lb4 = new Label("332.0"); p.add(lb4);
addMouseMotionListener(this);
tf1.addActionListener(this);
tf2.addActionListener(this);
tf3.addActionListener(this);
}
public void start() {
}
public void stop() {
}
public void destroy() {
}
public void mouseDragged(MouseEvent e) {
int x=e.getX();
int y=e.getY();
int k, km;
int d, dm;
for (k=0, km=0, dm=512; k<4; k++) {
d=(ax[k]>x)?ax[k]-x: x-ax[k];
if(d<dm) {dm=d; km=k;}
}
d=(ry>y)?ry-y:y-ry;
if(d<=dm) ry=y;
else ax[km]=x;
repaint();
}
public void mouseMoved(MouseEvent e) {
}
public void actionPerformed(ActionEvent evt) {
double Di = new Double(0);
TextField src = (TextField) evt.getSource();
double x = Di.valueOf(src.getText()).doubleValue();
if(src==tf1) R1=x;
if(src==tf2) R2=x;
if(src==tf3) n2=x;
repaint();
}
public void paint(Graphics g){
g.setColor(Color.lightGray);
g.fillRect(0, 110, 450, 300);
double[][] T1= new double [2][2];
T1[0][0]=1; T1[1][0]=0; T1[0][1]=ax[0]-ax[2]; T1[1][1]=1;
double[][] T2= new double [2][2];
T2[0][0]=1; T2[1][0]=0; T2[0][1]=ax[1]-ax[0]; T2[1][1]=1;
double[][] T3= new double [2][2];
T3[0][0]=1; T3[1][0]=0; T3[0][1]=ax[3]-ax[1]; T3[1][1]=1;
double[][] D1= new double [2][2];
D1[0][0]=1; D1[0][1]=0; D1[1][0]=(n1-n2)/(n2*R1); D1[1][1]=n1/n2;
double[][] D2= new double [2][2];
D2[0][0]=1; D2[0][1]=0; D2[1][0]=(n2-n1)/(n1*R2); D2[1][1]=n2/n1;
Integer ix;
lb1.setText(ix.toString(ax[2]));
lb2.setText(ix.toString(ax[0]));
lb3.setText(ix.toString(ax[1]));
lb4.setText(ix.toString(ax[3]));
lb5.setText(ix.toString(250-ry));
g.setColor(Color.black);
g.drawLine(10, 250, 450, 250);
g.setColor(Color.blue);
if(R1>0) g.drawArc(ax[0], 142,108, 216, 110, 140);
else g.drawArc(ax[0]-108, 142,108, 216, 290, 140);
if(R2>0) g.drawArc(ax[1], 142,108, 216, 110, 140);
else g.drawArc(ax[1]-108, 142,108, 216, 290, 140);
g.setColor(Color.magenta);
g.drawLine(ax[2], 142, ax[2], 358);
g.drawLine(ax[3], 142, ax[3], 358);
double[] S0,S1, S2 , E= new double[2];
E[0]=250-ry;
for(E[1]=-0.25; E[1] <=0.25; E[1]+=0.25){
S0=mpv( T1 , E);
S1=mpv(mpm(T2, mpm(D1,T1)),E);
S2=mpv(mpm(T3, mpm(D2,mpm(T2,mpm(D1,T1)))),E);
g.setColor(Color.white);
g.drawLine(ax[2], 250-(int)E[0], ax[0], 250-(int)S0[0]);
g.drawLine(ax[0], 250-(int)S0[0], ax[1], 250-(int)S1[0]);
g.drawLine(ax[1], 250-(int)S1[0], ax[3], 250-(int)S2[0]);
}
}
double[]mpv(double[][] M, double[] V){
double[] VR= new double[2];
VR[0]=M[0][0]*V[0]+M[0][1]*V[1];
VR[1]=M[1][0]*V[0]+M[1][1]*V[1];
return VR;
}
double[][]mpm(double[][] M1, double[][] M2){
double[][] MR= new double[2][2];
MR[0][0]=M1[0][0]*M2[0][0]+M1[0][1]*M2[1][0];
MR[1][0]=M1[1][0]*M2[0][0]+M1[1][1]*M2[1][0];
MR[0][1]=M1[0][0]*M2[0][1]+M1[0][1]*M2[1][1];
MR[1][1]=M1[1][0]*M2[0][1]+M1[1][1]*M2[1][1];
return MR;
}
} |
