IFSApplet

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Se invece vuoi realizzare l'applet da solo qui sotto c'è il listato, non sarà scritto come prescritto dalle convenzioni Java ma funziona bene lo stesso.

Con questo applet potrai realizzzare tutte le immagini che vedi nelle pagina

IFS.html

che parla dei frattali ottenti con il metodo IFS dall'inglese :- Iterated Function Systems.

I numeri della barra di scorrimento (a) Determinano il tipo di algoritmo usato .
Le barre (b), (c), (d) ed (e) regolano i valori dei parametri da inserire quando vengono richiesti.

Le dimensioni dell'applet consigliate sono width="720" height="800"

Listato dell'applet.

////////////////////////////////////////////////////////
//                         							   //
//  ISTRUZIONI PER L'APPLET                            //
// valori per le barre di scorrimento                  //
// a= scelta algoritmo                                 //
// b, c, d, e = seguire i                              //
// consigli che appaiono                               //
// sul monitor                                         //
//////////////////////////////////////////////////////////

import java.awt.Stroke;
import javax.swing.*;          
import java.awt.*;
import java.awt.event.*;
import javax.swing.event.*;
import java.awt.image.*;

import static java.lang.Math.*;
public class Felci4 extends JApplet
implements MouseListener, MouseMotionListener  {

public double mov1, mov2, mov3, mov4,yz,z,x0,x1,p,c,i,m,n,x,y,x3; 
    public int  w,h,redcol,greencol,bluecol;
    public int n1=12,n2=2,n3=2,n4=1,n5 =1,q;
    public String power, commenta,commentab;

Font font;
    Panel controlPanel;

Scrollbar scrolls1, scrolls2, scrolls3, scrolls4, scrolls5;
    private boolean movingCircleOut = false;

String sliderTextR = "a = (1 - 17): ";
    String sliderTextr = "b = (1 - 150): ";
    String sliderTextn = "c = (1 - 150 ) ";
    String sliderTextO = "d =(1 - 255): ";
    String sliderTextcin = "e=  (1 - 255 ) ";
    String sliderTextC = "        ";

Label sliderLabel1, sliderLabel2, sliderLabel3,  sliderLabel4, sliderLabel5, sliderLabelC,  titleLabel;
    Checkbox insideCheckbox, outsideCheckbox;

public void init() {
        power = "  ";
        controlPanel = new Panel();
        controlPanel.setBackground(Color.black);
        controlPanel.setLayout(new GridLayout(19,1));
        add("East", controlPanel);
        addMouseListener(this);
        addMouseMotionListener(this);

titleLabel = new Label("      Fractals       ", 1); 
        font = new Font("Helvetica", Font.BOLD, 17);
        titleLabel.setFont(font);
        titleLabel.setBackground(Color.black);
        titleLabel.setForeground(Color.red);
        controlPanel.add(titleLabel);
        controlPanel.add(new Label(" "));

sliderLabel1 = new Label(sliderTextR + Integer.toString (n1));
        font = new Font("Helvetica", Font.PLAIN, 12);
        sliderLabel1.setFont(font);
        sliderLabel1.setBackground(Color.black);
        sliderLabel1.setForeground(Color.white);
        controlPanel.add(sliderLabel1);
        scrolls1 = new Scrollbar(Scrollbar.HORIZONTAL, n1, 1, 1,18);
        scrolls1.setBackground(Color.blue);
        controlPanel.add(scrolls1);

sliderLabel2 = new Label(sliderTextr + Integer.toString(n2));
        font = new Font("Helvetica", Font.PLAIN, 12);
        sliderLabel2.setFont(font);
        sliderLabel2.setBackground(Color.black);
        sliderLabel2.setForeground(Color.white);
        controlPanel.add(sliderLabel2);
        scrolls2 = new Scrollbar(Scrollbar.HORIZONTAL, n2, 1, 1, 151);
        scrolls2.setBackground(Color.blue);
        controlPanel.add(scrolls2);

sliderLabel3 = new Label(sliderTextn + Integer.toString(n3));
        font = new Font("Helvetica", Font.PLAIN, 12);
        sliderLabel3.setFont(font);
        sliderLabel3.setBackground(Color.black);
        sliderLabel3.setForeground(Color.white);
        controlPanel.add(sliderLabel3);
        scrolls3 = new Scrollbar(Scrollbar.HORIZONTAL, n3, 1,1, 151);
        scrolls3.setBackground(Color.blue);
        controlPanel.add(scrolls3);

sliderLabel4 = new Label(sliderTextO +  power + Integer.toString(n4));
        font = new Font("Helvetica", Font.PLAIN, 12);
        sliderLabel4.setFont(font);
        sliderLabel4.setBackground(Color.black);
        sliderLabel4.setForeground(Color.white);
        controlPanel.add(sliderLabel4);
        scrolls4 = new Scrollbar(Scrollbar.HORIZONTAL,n4, 1, 1, 251);
        scrolls4.setBackground(Color.blue);
        controlPanel.add(scrolls4);

sliderLabel5 = new Label(sliderTextcin +  power + Integer.toString(n5));
        font = new Font("Helvetica", Font.PLAIN, 12);
        sliderLabel5.setFont(font);
        sliderLabel5.setBackground(Color.black);
        sliderLabel5.setForeground(Color.white);
        controlPanel.add(sliderLabel5);
        scrolls5 = new Scrollbar(Scrollbar.HORIZONTAL,n5, 1, 1, 251);
        scrolls5.setBackground(Color.blue);
        controlPanel.add(scrolls5);

controlPanel.add(new Label("  "));

sliderLabelC = new Label(sliderTextC);
        font = new Font("Helvetica", Font.BOLD, 18);
        sliderLabelC.setFont(font);
        sliderLabelC.setBackground(Color.black);
        sliderLabelC.setForeground(Color.white);

controlPanel.add(sliderLabelC);

CheckboxGroup CircleInOutGroup = new CheckboxGroup ();
        insideCheckbox = new Checkbox("",  CircleInOutGroup, !movingCircleOut);
        outsideCheckbox = new Checkbox("", CircleInOutGroup, movingCircleOut);
        insideCheckbox.setForeground(Color.green);
        outsideCheckbox.setForeground(Color.red);
        font = new Font("Helvetica", Font.BOLD, 12);
        insideCheckbox.setFont(font);
        outsideCheckbox.setFont(font);

//controlPanel.add(insideCheckbox);
        //controlPanel.add(outsideCheckbox);

}

public boolean handleEvent(Event ev)

{

if (ev.target instanceof Scrollbar) {

int value = ((Scrollbar)ev.target).getValue();
            if (ev.target == scrolls2) {

sliderLabel2.setText(sliderTextr + Integer.toString(value));
                n2 = value;

} else if (ev.target == scrolls3) {
                sliderLabel3.setText(sliderTextn + Integer.toString(value));
                n3 = value;

} else if (ev.target == scrolls1) {
                sliderLabel1.setText(sliderTextR + Integer.toString(value));
                n1 = value;

} else if (ev.target == scrolls4) {
                sliderLabel4.setText(sliderTextO +   Integer.toString(value));
                n4 = value;

}   else if (ev.target == scrolls5) {
                sliderLabel5.setText(sliderTextcin +  Integer.toString(value));
                n5 = value;

}
            repaint();

}
        if (   ev.target == insideCheckbox || ev.target == outsideCheckbox ) { 
            repaint();
        }

return true;
    }

public void paint(Graphics g) {

w = getSize().width -130;  h = getSize().height;

Graphics2D g2 = (Graphics2D)g;

BufferedImage bufimage;

Graphics2D bufimagegraf,bufimagegrafb,bufimagegraff ;

if (outsideCheckbox.getState()){

int pieno = 2;

}

if (insideCheckbox.getState()){

int pieno= 200;

}

bufimage = new BufferedImage(w, h, BufferedImage.TYPE_4BYTE_ABGR);
        bufimagegraf= bufimage.createGraphics();
        bufimagegraf.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
        bufimagegraf.setStroke(new BasicStroke(1.0f));
        bufimagegraf.setColor(new Color(0,255,0));
        bufimagegraf.setFont( new Font("Helvetica", Font.PLAIN, 18));

bufimagegrafb= bufimage.createGraphics();
        bufimagegrafb.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
        bufimagegrafb.setStroke(new BasicStroke(1.0f));
        bufimagegrafb.setFont( new Font("Helvetica", Font.PLAIN, 18));
        bufimagegrafb.setColor(new Color(255,0,0));
        bufimagegraf.clearRect(0,0,w, h);

bufimagegraff= bufimage.createGraphics();
        bufimagegraff.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
        bufimagegraff.setStroke(new BasicStroke(1.0f));
        bufimagegraff.setColor(new Color(255,0,0));

switch(n1){

case 1:
            
            double x=0.0;
            double y=0;
            int v=0;
            while (v<5000000)
            {
                double x1=x;
                double t=(Math.random()*100);//100
                if (t < 15)
                {
                    bufimagegrafb.setColor(new Color(180,195,175));
                    x=0.012*x;
                    y=0.2*y;
                }
                else
                {
                    if (t < 76)//76  regola il lato sinistro
                    {
                        bufimagegrafb.setColor(new Color((int)((15*t)%195),183,0));
                        x = 0.85 * x +1*0.01+0.06* y; 
                        y = 0.04 * x1 + 0.85 * y - 1.6;

//   x =0.85 * x + x3* y; //0.04// raddrizza la foglia

}
                    else
                    {

if (t < 89) //89  regola il lato destro
                        {
                           x = 0.087 * x -1*0.01- 0.26 * y;
                           y = 0.214 * x1 + 0.31 * y - 1.6;

bufimagegrafb.setColor(new Color((int)((15*t)%225),183,95));
                        }
                        else
                        {
                            bufimagegrafb.setColor(new Color((int)((50+t)%245),183,95));
                            x = -0.15 * x +n3*0.01 + 0.30 * y;
                            y = 0.326 * x1 +0.24 * y - 0.5;

// y = 0.26 * x1 +0.24 * y + x4;// x4 sposta verso il basso il lato destro della foglia

}
                    }
                }

double z=(v%50);

if (z <= 0)
                {
                    x= -46*x+200;
                    y= 1*50*y;
                                     
                    int x2=(int)x;
                    int y2=(int)y+750;

bufimagegrafb.drawLine ((x2), (y2),(x2),(y2));

}
                v++;
            }

break;

case 2:

x=0;
            y=0;
            v=0;
            while (v<5000000)
            {
                double x1=x;
                double t=(Math.random()*100);
                if (t < 15)
                {
                    bufimagegrafb.setColor(new Color(180,185,175));
                    x=0.012*x;
                    y=0.2*y;
                }
                else
                {
                    if (t < 76)//76  regola il lato sinistro
                    {
                        bufimagegrafb.setColor(new Color((int)((15*t)%195),183,0));
                        x = -0.85 * x +3*0.01+0.06* y;
                        y = 0.04 * x1 + 0.85 * y - 1.6;

}
                    else
                    {

if (t < 90) 
                        {
                            x = 0.087 * x -3*0.01- 0.26 * y;
                            y = 0.214 * x1 + 0.31 * y - 1.6;

bufimagegrafb.setColor(new Color((int)((15*t)%183),183,95));
                        }
                        else
                        {

bufimagegrafb.setColor(new Color((int)((50+t)%183),183,95));
                            x = 0.15 * x +3*0.01 + 0.30 * y;//3
                            y = -44*0.01+0.326 * x1 +0.24 * y - 0.5;
                            // y = 0.26 * x1 +0.24 * y + x4;// x4 sposta verso il basso il lato destro della foglia

}
                    }
                }

double z=(v%50);

if (z <= 0)
                {
                    x= -87*x+200;
                    y= 2*33*y;
                    
                    int x2=(int)x;
                    int y2=(int)y+750;
                    bufimagegrafb.drawLine ((x2), (y2),(x2),(y2));

}
                v++;
            }

break;

case 3:

x=0.0;
            y=0.0;
            v=0;
            while (v<5000000)
            {
                double x1=x;
                double t=(Math.random()*100);
                if (t < 15)
                {
                    bufimagegrafb.setColor(new Color(180,195,0));
                    x= 1*0.012*x; 
                    y=0.2*y;
                }
                else
                {
                    if (t < 76)
                    {
                        bufimagegrafb.setColor(new Color((int)((15*t)%195),183,0));
                        x = 0.01-0.85 * x +0.01*20* y; //20 l'inclinazione del tronco , 0.01 sposta pezzi del tronco a destra 
                        y = 0.04 * x1 + 1*0.01+0.85 * y - 1.6;//1 lo scivolamento dei rami attaccati al tronco

}
                    else
                    {

if (t < 89) //89  regola il lato destro
                        {
                            x = 0.087 * x -3*0.01- 0.26 * y;//3 
                            y = 0.001+0.214 * x1 + 0.31 * y - 1.6;// 0.001 lo scivolamento dei rami attaccati al tronco
                            bufimagegrafb.setColor(new Color((int)((15*t)%220),183,95));
                        }
                        else
                        {
                            bufimagegrafb.setColor(new Color((int)((5+t)%245),183,95));

x = 0.001+0.15 * x +3*0.01 + 0.30 * y;// 0.01 e 3 lo spostamento dei rami
                            y = -n5*0.01 +0.326 * x1 +0.24 * y - 0.5;// la distanza tra i rami

}
                    }
                }

double z=(v%50);

if (z <= 0)
                {
                    x= -90*x+200;
                    y=  2*50*y;
                   
                    int x2=(int)x;
                    int y2=(int)y+750;
                    bufimagegrafb.drawLine ((x2), (y2),(x2),(y2));

}

v++;
            }
            bufimagegrafb.setColor(new Color(255,0, 0));
            bufimagegrafb.drawString( " Muovi e  da  1 a 125 " , 10, 28);
            break;

case 4:
            
            x=0.0;
            y=0;
            v=0;
            while (v<5000000)
            {
                double x1=x;
                double t=(Math.random()*100);
                if (t < 15)
                {
                    bufimagegrafb.setColor(new Color(190,195, 55));
                    x= 1*0.012*x;
                    y= 2*0.2*y;
                }
                else
                {
                    if (t < 76)
                    {
                        bufimagegrafb.setColor(new Color((int)((15*t)%195),183,0));
                        x = -0.85 * x +0.06* y; 
                        y = 18*0.04 * x1 + 104*0.01+0.85 * y - 1.6;

}
                    else
                    {

if (t < 89) 
                        {
                            x = 0.087 * x -0.9- 0.26 * y;
                            y = 0.214 * x1 + 0.31 * y - 1.6;
                            bufimagegrafb.setColor(new Color((int)((15*t)%220),183,95));
                        }
                        else
                        {
                            bufimagegrafb.setColor(new Color((int)((5+t)%245),183,95));
                            x =   0.15 * x +104*0.01 + 0.30 * y;
                            y = -1* 0.326 * x1 +0.24 * y - 0.5-0.6;

}
                    }
                }

double z=(v%50);

if (z <= 0)
                {
                    x= 28* -5*x+200;
                    y= 3*50*y;
                    
                    int x2=(int)x;
                    int y2=(int)y+750;

bufimagegrafb.drawLine ((x2), (y2),(x2),(y2));

}
                v++;
            }

break;

case 5:

x=0.0;
            y=0;
            v=0;
            while (v<5000000)
            {
                double x1=x;
                double t=(Math.random()*100);
                if (t < 15)
                {
                    bufimagegrafb.setColor(new Color(190,195, 55));
                    x=0.012*x;
                    y=0.2*y;
                }
                else
                {
                    if (t < 76)
                    {
                        bufimagegrafb.setColor(new Color((int)((15*t)%195),183,0));
                        x = -0.85 * x +0.06* y;
                        y = 0.04 * x1 + 104*0.01+0.85 * y - 1.6;

}
                    else
                    {

if (t < 89) 
                        {
                            x = 0.087 * x -0.9- 0.26 * y-183*0.01;
                            y = 0.214 * x1 + 0.31 * y - 1.6;
                            bufimagegrafb.setColor(new Color((int)((15*t)%220),183,95));
                        }
                        else
                        {
                            bufimagegrafb.setColor(new Color((int)((5+t)%245),183,95));
                            x = 0.15 * x +104*0.01 + 0.30 * y+183*0.001;
                            y = 0.326 * x1 +0.24 * y - 0.5-0.6;

}
                    }
                }

double z=(v%50);

if (z <= 0)
                {
                    x= -116*x+200;
                    y= 3*50*y;
                    
                   
                    
                    int x2=(int)x;
                    int y2=(int)y+750;

bufimagegrafb.drawLine ((x2), (y2),(x2),(y2));

}
                v++;
            }

break;

case 6:

x=0.0;
            y=0.0;
            v=0;
            while (v<5000000)
            {
                double x1=x;
                double t=(Math.random()*100);
                if (t < 15)
                {
                    bufimagegrafb.setColor(new Color(180,195,0));
                    x= 17*0.012*x;
                    y= 3*0.2*y;
                }
                else
                {
                    if (t < 76)
                    {
                        bufimagegrafb.setColor(new Color((int)((15*t)%195),183,0));
                        x = 0.01-0.85 * x +0.01*20* y; 
                        y = 0.04 * x1 + 1*0.01+0.85 * y - 1.6;

}
                    else
                    {

if (t < 89) 
                        {
                            x = 0.087 * x -3*0.01- 0.26 * y;
                            y = 0.001+0.214 * x1 + 0.31 * y - 1.6;
                            bufimagegrafb.setColor(new Color((int)((15*t)%220),183,95));
                        }
                        else
                        {
                            bufimagegrafb.setColor(new Color((int)((5+t)%245),183,95));
                            x = 0.001+0.15 * x +3*0.01 + 0.30 * y;
                            y = -n5*0.01 +0.326 * x1 +0.24 * y - 0.5;

}
                    }
                }

double z=(v%50);

if (z <= 0)
                {
                    x= -90*x+200;
                    y=  2*50*y;
                    
                    int x2=(int)x;
                    int y2=(int)y+750;

bufimagegrafb.drawLine ((x2), (y2),(x2),(y2));

}
                v++;
            }

break;

case 7:

x=0.0;
            y=0.0;
            v=0;
            while (v<2500000)
            {
                double x1=x;
                double t=(Math.random()*100);
                if (t < 15)
                {
                    bufimagegrafb.setColor(new Color(180,195,0));
                    x= 0.012*x;
                    y= 0.2*y;
                }
                else
                {
                    if (t < 76)
                    {
                        bufimagegrafb.setColor(new Color((int)((15*t)%195),183,0));
                        x = 1*0.01-0.85 * x +0.01*20* y; 
                        y = 33*0.04 * x1 + 1*0.01+0.85 * y - 1.6;

}
                    else
                    {

if (t < 89) 
                        {
                            x = 0.087 * x -3*0.01- 0.26 * y;
                            y = 0.001+0.214 * x1 + 0.31 * y - 1.6;
                            bufimagegrafb.setColor(new Color((int)((15*t)%220),183,95));
                        }
                        else
                        {

bufimagegrafb.setColor(new Color((int)((5+t)%245),183,95));
                            x = 0.001+0.15 * x +3*0.01 + 0.30 * y;
                            y = -20*0.01 +0.326 * x1 +0.24 * y - 0.5;

}
                    }
                }

double z=(v%50);

if (z <= 0)
                {
                    x= -90*x+200;
                    y=  2*50*y;
                     
                    
                    int x2=(int)x;
                    int y2=(int)y+750;

bufimagegrafb.drawLine ((x2), (y2),(x2),(y2));

}
                v++;
            }

break;

case 8:
            x3= n5*0.1;
            x=n4*0.1;
            y =n4*0.1;
            v=0;
            while (v< 150000)
            {

double t=(Math.random()*100);
                if (t < 25)
                {
                    bufimagegrafb.setColor(new Color(180,195,0));
                    x= (x3*n3+x)/2;
                    y= (n3*x3+y)/2;
                }
                else
                {
                    if (t < 50)
                    {
                        bufimagegrafb.setColor(new Color((int)((15*t)%195),183,0));
                        x = x/2; 
                        y =( n3*x3+y)/2;

}
                    else
                    {

if (t < 75) 
                        {
                            x = (n3 * x3 +x)/n2;
                            y = (n3* x3+y)/n2;
                            bufimagegrafb.setColor(new Color((int)((15*t)%220),183,95));
                        }
                        else
                        {
                            bufimagegrafb.setColor(new Color((int)((5+t)%245),183,95));
                            x = (n3*x3+ x)/n4;
                            y = y/n4;

}
                    }
                }

{
                    x= x+20;
                    y= y+25;

int x2=(int)x;
                    int y2=(int)y;

bufimagegrafb.drawLine ((x2), (y2),(x2),(y2));

}
                v++;
            }
            commenta = ( "Prova con  (b= 18), (c= 22), (d= 2), (e= 250 )" );
            commentab = ( "Oppure con  (b= 2), (c= 22), (d= 2), (e= 230 )" );
            break;

case 9:
            x3= n5*0.1;
            x=n5*0.1;
            y =n5*0.1;
            v=1;
            while (v< 150000)

{

double t=(Math.random()*100);
                if (t < 25)
                {
                    bufimagegrafb.setColor(new Color(0,255,0));
                    x= (n3*1+x-25+z*10+yz)/2;
                    y= (0.25*(100*n4*0.1)+y)/2;
                }
                else
                {
                    if (t < 50)
                    {
                        bufimagegrafb.setColor(new Color(0,0,255));
                        x = (x)/2; 
                        y =( 200+y)/2;
                    }
                    else
                    {

if (t < 75)
                        {
                            bufimagegrafb.setColor(new Color((int)255,0,0));
                            x = (300+x)/2;
                            y = (190+y)/2;

}
                        else
                        {
                            bufimagegrafb.setColor(new Color((int)((5*t)%255),183,255));
                            x = (150+ x)/2;
                            y = y/n2;

}
                    }

}

x=x+20;
                y=y+25;

int x2=(int)(x*n5*0.1);
                int y2=(int)(y*n5*0.1);

bufimagegrafb.drawLine ((x2), (y2),(x2),(y2));

v++;
            }

commenta = ( "Prova con  (b= 2), (c= 1), (d= 88), (e= 14 )" );
            commentab = ( "Oppure con  (b= 3), (c= 1), (d= 244), (e= 10 )  muovi anche il mouse" );
            break;

case 10:
            x3= w/n5;
            x=n5*0.1;
            y =n5*0.1;
            v=1;
            while (v< 150000)

{
                double t=(Math.random()*100);
                if (t < 20)
                {
                    bufimagegrafb.setColor(new Color(0,255,0));
                    x= (x/n2); 
                    y= (n3*x3+y)/n2;
                }
                else
                {
                    if (t < 40)
                    {
                        bufimagegrafb.setColor(new Color(0,0,255));
                        x = (n3*x3+x)/n2; 
                        y =( n3*x3+y)/n2;

}
                    else
                    {
                        if (t < 60)
                        {
                            bufimagegrafb.setColor(new Color(0,0,255));
                            x = (n3*x3+x)/n4;
                            y =( n3*x3*2+y)/n4;

}
                        else
                        {

if (t < 80)
                            {
                                bufimagegrafb.setColor(new Color((int)255,0,0));
                                x = (n3*x3+x)/n2;
                                y = (y)/n2;

}
                            else
                            {
                                bufimagegrafb.setColor(new Color((int)((5*t)%255),183,255));
                                x = (n3*x3*2+ x)/n4;
                                y = (n3*x3+ y)/n4;

}
                        }

} }

x=x+20;
                y=y+25;

int x2=(int)(x*n5*0.1);
                int y2=(int)(y*n5*0.1);

bufimagegrafb.drawLine ((x2), (y2),(x2),(y2));

v++;
            }

commenta = ( "Prova con  (b= 3), (c= 9), (d= 3), (e= 6 )" );
            commentab = ( "Oppure con  (b= 2), (c= 7), (d= 5), (e= 13) O con  (b= 3), (c= 17), (d= 5), (e= 6 )" );
            break;

case 11:
            x3= w/n5;
            x=n5*0.1;
            y =n5*0.1;
            v=1;
            while (v< 150000)

{
                double t=(Math.random()*120);
                if (t < 20)
                {

bufimagegrafb.setColor(new Color(0,255,0));
                    x= (n3*x3+x)/n2;
                    y= (n3*x3+y)/n2; 
                }
                else
                {
                    if (t < 40)
                    {
                        bufimagegrafb.setColor(new Color(0,0,255));
                        x = (x)/n2; 
                        y =( n3*x3+y)/n2;

}
                    else
                    {
                        if (t < 60)
                        {
                            bufimagegrafb.setColor(new Color(0,0,255));
                            x = (n3*x3+x)/n2; 
                            y =(n3*x3+y)/n2;

}
                        else
                        if (t < 80)
                        {
                            bufimagegrafb.setColor(new Color((int)255,0,0));
                            x = (n3*x3+x)/n2;
                            y = (y)/n2;

}
                        else
                        {
                            if (t < 100)  
                            {
                                bufimagegrafb.setColor(new Color((int)255,0,0));
                                x = (x)/n2;
                                y = (y)/n2;

}
                            else
                            {
                                if (t < 120)  
                                {
                                    bufimagegrafb.setColor(new Color((int)255,0,0));
                                    x = (n3*x3+x)/n4; 
                                    y =(n3*x3+y)/n4;

}
                            }

} }}

x=x+20;
                y=y+25;

int x2=(int)(x*n5*0.1);
                int y2=(int)(y*n5*0.1);

bufimagegrafb.drawLine ((x2), (y2),(x2),(y2));

v++;
            }

commenta = ( "Prova con  (b= 3), (c= 15), (d= 5), (e= 5 )" );
            commentab = ( "" );
            break;

case 12:
            x3= w/n5;
            x=n5*0.1;
            y =n5*0.1;
            v=1;
           
            while (v< 650000)

{
                double t=(Math.random()*100);
                if (t < 33)
                {
                    x= (x3)/n4;
                    y= (x3)/n2; 
                }
                else
                {
                    if (t < 66)
                    {

x= (x3+x*2.5)/n4;
                        y= (x3+y)/n2;

}
                    else
                    {
                        if (t < 100)
                        {

x = x*1.8; 
                            y =  y*n3;

}

} }

x=x+20;
                y=y+20;

int x2=(int)(x*n5*0.1);
                int y2=(int)(y*n5*0.1);

bufimagegrafb.setColor(new Color(255,255,0));
                bufimagegrafb.drawLine ((x2), (y2),(x2),(y2)); 
                bufimagegrafb.setColor(new Color(0,255,155));
                bufimagegrafb.drawLine ((-x2+200), (y2),(-x2+200),(y2)); 
                bufimagegrafb.setColor(new Color(0,255,0));
                bufimagegrafb.drawLine ((-x2+275), (y2),(-x2+275),(y2));

v++;
            }

commenta = ( "Prova con  (b= 7), (c= 3), (d= 7), (e= 7)" );
            commentab = ( "" );
            break;

case 13:
            x3= w/n5;
            x=n5*0.1;
            y =n5*0.1;
            v=1;
            while (v< 150000)

{
                double t=(Math.random()*100);
                if (t < 20)
                {

bufimagegrafb.setColor(new Color(0,255,0));

x= (n3*x3+x)/n2;
                    y= (n3*x3+y)/n2; 
                }
                else
                {
                    if (t < 40)
                    {

bufimagegrafb.setColor(new Color(0,0,255));

x = (x)/n2; 
                        y =( n3*x3+y)/n2;

}
                    else
                    {
                        if (t < 60)
                        {

bufimagegrafb.setColor(new Color(0,0,255));

x = (n3*x3/2+x)/n2; 
                            y =(y)/n2;

}

else
                        {
                            if (t < 100)  
                            {

bufimagegrafb.setColor(new Color((int)255,0,0));
                                x = (x)/n2;
                                y = (y)/n2;

}

} }}

x=x+20;
                y=y+25;

int x2=(int)(x*n5*0.1);
                int y2=(int)(y*n5*0.1);

bufimagegrafb.drawLine ((x2), (y2),(x2),(y2));

v++;
            }

commenta = ( "Prova con  (b= 3), (c= 14), (d= null), (e= 26 )" );
            commentab = ( "" );
            break;

case 14:
            x3= w/n5;
            x=n5*0.1;
            y =n5*0.1;
            v=1;
            while (v< 150000)

{
                double t=(Math.random()*80);
                if (t < 20)
                {

bufimagegrafb.setColor(new Color(0,255,0));

x= (n3*x3+x)/n2;
                    y= (n3*x3+y)/n2; 
                }
                else
                {
                    if (t < 40)
                    {

bufimagegrafb.setColor(new Color(0,0,255));

x = (x)/n2; 
                        y =( n3*x3+y)/n2;

}
                    else
                    {
                        if (t < 60)
                        {

bufimagegrafb.setColor(new Color(0,0,255));

x = (n3*x3/2+x)/n2; 
                            y =(y)/n2;

}

}}

x=x+20;
                y=y+25;

int x2=(int)(x*n5*0.1);
                int y2=(int)(y*n5*0.1);

bufimagegrafb.drawLine ((x2), (y2),(x2),(y2));

v++;
            }

commenta = ( "Prova con  (b= 2), (c= 7), (d= null), (e= 22 )" );
            commentab = ( "" );
            break;

case 15:
            x3= w/n5;
            x=n5*0.1;
            y =n5*0.1;
            v=1;
            while (v< 150000)

{
                double t=(Math.random()*140);
                if (t < 20)
                {

bufimagegrafb.setColor(new Color(0,255,0));
                    x= (n3*x3+x)/n2;
                    y= (n3*x3+y)/n2; 
                }
                else
                {
                    if (t < 40)
                    {

bufimagegrafb.setColor(new Color(0,0,255));
                        x = (x)/n2; 
                        y =( n3*x3+y)/n2;

}
                    else
                    {
                        if (t < 60)
                        {

bufimagegrafb.setColor(new Color(0,0,255));
                            x = (n3*x3+x)/n2; 
                            y =y/n2;

}
                        else
                        if (t < 80)
                        {
                            bufimagegrafb.setColor(new Color((int)255,0,0));
                            x =(n3*x3+x)/n2; 
                            y = y/n2;

}
                        else
                        if (t < 100)
                        {
                            bufimagegrafb.setColor(new Color((int)255,0,0));
                            x = x/n2;
                            y = y/n2;

}
                        else
                        {
                            if (t < 120)  
                            {
                                bufimagegrafb.setColor(new Color((int)255,0,0));
                                x = (n3*x3/2+x)/n4;
                                y = (n3*x3/2+y)/n4;

}
                            else
                            {
                                if (t < 140)  
                                {
                                    bufimagegrafb.setColor(new Color((int)255,0,0));
                                    x = (n3*x3/2+x)/n4;
                                    y = (n3*x3*1+y)/n4;
                                }
                            }

} }}

x=x+20;
                y=y+25;

int x2=(int)(x*n5*0.1);
                int y2=(int)(y*n5*0.1);

bufimagegrafb.drawLine ((x2), (y2),(x2),(y2));

v++;

}

commenta = ( "Prova con  (b= 3), (c= 12), (d= 3), (e= 34 )" );
            commentab = ( "" );
            break;

case 16:
            x3= w/n3;

x=1;
            y =1;
            v=1;
            while (v< 150000)

{
                double t=(Math.random()*140);
                if (t < 20)
                {

bufimagegrafb.setColor(new Color(0,255,0));
                    q= (int)(random()*7);

x=  (n3*x3/2+x)/n2; 
                    y= (n3*x3/2+y)/n2;

}
                else
                {
                    if (t < 40)
                    {

bufimagegrafb.setColor(new Color(0,0,255));
                        x= x/n2; 
                        y=(2*x3+y)/n2;

}
                    else
                    {
                        if (t < 60)
                        {

bufimagegrafb.setColor(new Color(0,0,255));
                            x= (n3*x3+x)/n2;
                            y=(n3*x3+y)/n2;
                        } 
                        else
                        {
                            if (t < 80)
                            {
                                bufimagegrafb.setColor(new Color((int)255,0,0));

x =(n3*x3+x)/n2; 
                                y = y/n2;

}
                            else
                            if (t < 100)
                            {
                                bufimagegrafb.setColor(new Color((int)255,0,0));

x = x/n2;
                                y = y/n2;

}
                            else
                            {
                                if (t < 120)  
                                {
                                    bufimagegrafb.setColor(new Color((int)255,0,0));

x = (n3*x3+x)/n4;
                                    y = (n3*x3/2+y)/n4;
                                }

else
                                {
                                    if (t < 140)  
                                    {
                                        bufimagegrafb.setColor(new Color((int)255,0,0));
                                        x = (n3*x3/2+x)/n4;
                                        y = (n3*x3+y)/n4;
                                    }
                                }

} }}}

x=x+20;
                y=y+25;

int x2=(int)(x*n5*0.1);
                int y2=(int)(y*n5*0.1);

bufimagegrafb.drawLine ((x2), (y2),(x2),(y2)); 
                v++;

}

commenta = ( "Prova con  (b= 3), (c= 2), (d= 3), (e= 17 )" );
            commentab = ( "" );
            break;
            
            
             
           
           
            
                   case 17:
            x3= w/n5;
            x=0.1;
            y =0.1;
            v=1;
                        
            while (v< 350000)

{
                double t=(Math.random()*100);
                if (t < 1)
                 
                {
                     bufimagegrafb.setColor(new Color(0,255,0));
                   x= (0.5*x3+x)/n4;
                   y= (0.5*x3+y)/n4; 
                   
                }
                else
                {
                    if (t <43)
                     
                    {
                         bufimagegrafb.setColor(new Color(0,255,255));

x= (0.5*x3+x)/n3;
                        y= (0.5*x3+y)/n3;

}
                    else
                    {
                        if (t <75)
                        
                            {
                               bufimagegrafb.setColor(new Color(255,255,0));
                            x = (0.5*x3+x)/n2; 
                            y =  (0.5*x3-y)/n2;

}
                        
                        else 
                        
                        
                        {
                             bufimagegrafb.setColor(new Color(255,0,0));
                            x = (0.5*x3-x)/(n2); 
                            y = (0.5*x3+y)/(n2);

}

} }

x=x+20;
                y=y+20;

int x2=(int)(x*n5*0.1);
                int y2=(int)(y*n5*0.1);
                
                bufimagegrafb.drawLine ((x2+50), (y2+50),(x2+50),(y2+50)); 
               
                v++;
            }

commenta = ( "Prova con  (b= 2), (c= 2), (d= da 2 a 12), (e= 98)" );
            commentab = ( "" );
            break;

}

bufimagegrafb.setColor(new Color(245,255,255));
        bufimagegrafb.setFont( new Font("Helvetica", Font.BOLD, 13));
        bufimagegrafb.drawString( "Ad ogni cambiamento di (a) hai un nuovo algoritmo " , 10, h-50);
        if (n1 <8){
            h=10000;
        }

bufimagegrafb.drawString (" "+commenta, 1,h-35 ); 
        bufimagegrafb.drawString (" "+commentab, 1,h-15 );

g2.drawImage(bufimage,0,0, this);

showStatus( " zoom =    " +q  );
    }

public void mouseClicked(MouseEvent et) {  
    }

public void mousePressed(MouseEvent e) {
    }

public void mouseReleased(MouseEvent e){}

public void mouseEntered(MouseEvent e) {}

public void mouseExited(MouseEvent e)  {}

public void mouseMoved(MouseEvent e) {}

public void mouseDragged(MouseEvent e) {

mov1 = e.getX();   mov4 = e.getY();

z=(z+0.05*(mov1-mov2));mov2=mov1;
        yz=yz +0.01* ((mov4-mov3));mov3=mov4;