MID GRAFIKA KOMPUTER

MID

GRAFIKA KOMPUTER

Soal :

1. Rotasi A(150,100), B(100,250), C(200,250)     terhadap titik X (200,200) dengan sudut putar 45 

            

2. Translasi terhadap  T(50 & 100) dari kedua nomor tersebut :

a. Buat lisning programnya !

b. Tentukan titik hasil rotasi A translasinya

JAWAB 

Lisning soal A

ROTASI 

package rotasi;

import java.awt.*;

import java.awt.event.*;

public class Rotasi extends Frame implements ActionListener{

int x = 200;

int y = 200;

public static void main(String[] args) {

Frame frame = new Rotasi();

frame.setSize(200,200);

frame.setVisible(true);

}

public Rotasi() {

setTitle("AWT Demo");

// create menu

MenuBar mb = new MenuBar();

setMenuBar(mb);

Menu menu = new Menu("File");

mb.add(menu);

MenuItem mi = new MenuItem("Exit");

mi.addActionListener(this);

menu.add(mi);

// end program when window is closed

WindowListener l = new WindowAdapter()  {

public void windowClosing(WindowEvent ev) {

System.exit(0);

}

};

this.addWindowListener(l);

// mouse event handler

MouseListener mouseListener = new MouseAdapter() {

public void mouseClicked(MouseEvent ev) {

x = ev.getX();

y = ev.getY();

repaint();

}

};

addMouseListener(mouseListener);

}

public void paint(Graphics g) {

int xasalA = 150; int yasalA = 100;

int xasalB = 100; int yasalB = 250;

int xasalC = 200; int yasalC = 250;

int sudut = 45;

g.setColor(Color.blue);

g.drawLine(xasalA,yasalA, xasalB,yasalB);

g.drawLine(xasalB,yasalB,xasalC,yasalC);

long xA = Math.round(x+(xasalA-x)*Math.cos(sudut)-(yasalA-y)*Math.sin(sudut));

long yA = Math.round(x+(xasalA-x)*Math.sin(sudut)-(yasalA-y)*Math.cos(sudut));

long xB = Math.round(x+(xasalB-x)*Math.cos(sudut)-(yasalB-y)*Math.sin(sudut));

long yB = Math.round(x+(xasalB-x)*Math.sin(sudut)-(yasalB-y)*Math.cos(sudut));

long xC = Math.round(x+(xasalC-x)*Math.cos(sudut)-(yasalC-y)*Math.sin(sudut));

long yC = Math.round(x+(xasalC-x)*Math.sin(sudut)-(yasalC-y)*Math.cos(sudut));

int xA1 = (int)xA; int yA1 = (int)yA;

int xB1 = (int)xB; int yB1 = (int)yB;

int xC1 = (int)xC; int yC1 = (int)yC;

g.drawLine(xA1,yA1, xB1,yB1);

g.drawLine(xB1,yB1, xC1,yC1);

}

public void actionPerformed(ActionEvent ev) {

String command = ev.getActionCommand();

if ("Exit".equals(command)) {

System.exit(0);

}

}

}

Hasil Outputnya

TRANSLASI :

package translasi;

import java.awt.*;

import java.awt.event.*;

public class Translasi extends Frame implements ActionListener{

    int x = 50;

    int y = 100;

public static void main(String[] args) {

    Frame frame = new Translasi();

    frame.setSize(640, 480);

    frame.setVisible(true);

}

public Translasi() {

setTitle("AWT Demo");

// create menu

    MenuBar mb = new MenuBar();

    setMenuBar(mb);

    Menu menu = new Menu("File");

    mb.add(menu);

    MenuItem mi = new MenuItem("Exit");

    mi.addActionListener(this);

    menu.add(mi);

// end program when window is closed

    WindowListener l = new WindowAdapter()  {

    public void windowClosing(WindowEvent ev) {

    System.exit(0);

    }

    };

this.addWindowListener(l);

// mouse event handler

MouseListener mouseListener = new MouseAdapter() {

public void mouseClicked(MouseEvent ev) {

   int x = 50;

   int y = 100;

    repaint();

}

};

addMouseListener(mouseListener);

}

public void paint(Graphics g) {

g.drawLine(10, 10, 100, 200);

g.drawLine(10+x, 10+y, 100+x, 200+y);

}

public void actionPerformed(ActionEvent ev) {

String command = ev.getActionCommand();

if ("Exit".equals(command)) {

System.exit(0);

}

}

}

Hasil Outputnya