Translasi dan Rotasi Bangun Datar di Java

Neh ada new thread lagi dari ane gan, tentang grafika komputer. Ini cuma program sederhana sih, langsung aja deh gan,, nih code programnya :

import java.awt.BasicStroke;

import java.awt.BorderLayout;

import java.awt.Canvas;

import java.awt.Graphics;

import java.awt.Graphics2D;

import java.awt.GridLayout;

import java.awt.geom.Line2D;

import java.awt.*;

import javax.swing.*;

import java.awt.geom.*;

import javax.swing.JFrame;

import javax.swing.JLabel;

import javax.swing.JPanel;

import javax.swing.JSlider;

import javax.swing.event.ChangeEvent;

import javax.swing.event.ChangeListener;

public class ferzhagrafik extends JPanel {

  MyCanvas ferzha;

  JSlider sliderTransX, sliderTransY, sliderRotatesudut, sliderRotateX,

      sliderRotateY;

  double transX = 0.0;

  double transY = 0.0;

  double rotatesudut = 0.0;

  double rotateX = 500.0;

  double rotateY = 250.0;

  double scaleX = 1.0;

  double scaleY = 1.0;

  float width = 2.0f;

  public ferzhagrafik() {

    super(new BorderLayout());

     
    //Pengaturan Tampilan Slider

    JPanel controlPanel = new JPanel(new GridLayout(3, 3));

    add(controlPanel, BorderLayout.NORTH);

    controlPanel.add(new JLabel("Translasi Gambar(dx,dy): "));

    sliderTransX = setSlider(controlPanel, JSlider.HORIZONTAL, 0, 900, 150,

        100, 50);

    sliderTransY = setSlider(controlPanel, JSlider.HORIZONTAL, 0, 400, 150,

        100, 50);   

    controlPanel.add(new JLabel("Rotasi Gambar(Sudut,ox,oy): "));

    sliderRotatesudut = setSlider(controlPanel, JSlider.HORIZONTAL, 0, 360,

        0, 30, 45);

    JPanel subPanel = new JPanel();

    subPanel.setLayout(new GridLayout(1, 2));

    sliderRotateX = setSlider(subPanel, JSlider.HORIZONTAL, 0, 600, 600,

        150, 50);

    sliderRotateY = setSlider(subPanel, JSlider.HORIZONTAL, 0, 600, 300,

        150, 50);

    controlPanel.add(subPanel);   

    controlPanel.add(new JLabel());

                controlPanel.setBackground(Color.MAGENTA);

           

  

    JPanel widthPanel = new JPanel();

    widthPanel.setLayout(new GridLayout(1, 2));

      add(widthPanel, BorderLayout.SOUTH);

               

    ferzha = new MyCanvas();

    add(ferzha, "Center");

  }

  public JSlider setSlider(JPanel panel, int orientation, int minimumValue,

      int maximumValue, int initValue, int majorTickSpacing,

      int minorTickSpacing) {

    JSlider slider = new JSlider(orientation, minimumValue, maximumValue,

        initValue);

    slider.setPaintTicks(true);

    slider.setMajorTickSpacing(majorTickSpacing);

    slider.setMinorTickSpacing(minorTickSpacing);

    slider.setPaintLabels(true);

    slider.addChangeListener(new ChangeListener() {

      public void stateChanged(ChangeEvent e) {

        JSlider tempSlider = (JSlider) e.getSource();

                               

        if (tempSlider.equals(sliderTransX)) {

          transX = sliderTransX.getValue() - 150.0;

          ferzha.repaint();

        } else if (tempSlider.equals(sliderTransY)) {

          transY = sliderTransY.getValue() - 150.0;

          ferzha.repaint();

        } else if (tempSlider.equals(sliderRotatesudut)) {

          rotatesudut = sliderRotatesudut.getValue() * Math.PI / 180;

          ferzha.repaint();

        } else if (tempSlider.equals(sliderRotateX)) {

          rotateX = sliderRotateX.getValue();

          ferzha.repaint();

        } else if (tempSlider.equals(sliderRotateY)) {

          rotateY = sliderRotateY.getValue();

          ferzha.repaint();

        } 

      }

    });

    panel.add(slider);

    return slider;

  }

  class MyCanvas extends Canvas {

    public void paint(Graphics g) {

      Graphics2D g2D = (Graphics2D) g;

                 

                 

 //Gambar Grafik Asli             

 g2D.setPaint( Color.red);

 g2D.setStroke( new BasicStroke( 2.0f ) );

 g2D.draw( new Line2D.Double( 200, 300, 200, 200) );

 g2D.draw( new Line2D.Double( 200, 200, 250, 150) );

 g2D.draw( new Line2D.Double( 250, 150, 300, 200) );

 g2D.draw( new Line2D.Double( 300, 200, 200, 200) );

 g2D.draw( new Line2D.Double( 200, 200, 300, 300) );

 g2D.draw( new Line2D.Double( 300, 300, 200, 300) );

 g2D.draw( new Line2D.Double( 200, 300, 300, 200) );

 g2D.draw( new Line2D.Double( 300, 200, 300, 300) );

 g2D.setPaint( Color.magenta);

g2D.setStroke( new BasicStroke( 8.0f ) );

                  g2D.draw( new Line2D.Double( rotateX, rotateY, rotateX, rotateY) );

                               

       //Pengaturan Letak Gambar Grafik Setelah Slider Digeser

      g2D.translate(transX, transY);

      g2D.rotate(rotatesudut, rotateX, rotateY);

      g2D.scale(scaleX, scaleY);

      BasicStroke stroke = new BasicStroke(width);

      g2D.setStroke(stroke);

                                g2D.setPaint( Color.black);

      drawHome(g2D);

    }

    public void drawHome(Graphics2D g2D) {

               

      //Pendefinisian Gambar Grafik Yang Akan Dieksekusi

      Line2D line1 = new Line2D.Float(200f, 300f, 200f, 200f);

      Line2D line2 = new Line2D.Float(200f, 200f, 250f, 150f);

      Line2D line3 = new Line2D.Float(250f, 150f, 300f, 200f);

      Line2D line4 = new Line2D.Float(300f, 200f, 200f, 200f);

      Line2D line5 = new Line2D.Float(200f, 200f, 300f, 300f);

      Line2D line6 = new Line2D.Float(300f, 300f, 200f, 300f);

      Line2D line7 = new Line2D.Float(200f, 300f, 300f, 200f);

      Line2D line8 = new Line2D.Float(300f, 200f, 300f, 300f);

                               

                               

                 

      g2D.draw(line1);

      g2D.draw(line2);

      g2D.draw(line3);

      g2D.draw(line4);

      g2D.draw(line5);

      g2D.draw(line6);

      g2D.draw(line7);

      g2D.draw(line8);

    }

  }

  public static void main(String[] a) {

    JFrame f = new JFrame();

                f.setTitle("Tugas GRAFIKOM : Ferzha Putra Utama(G1A007034)");

    f.getContentPane().add(new grafika());

    f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

                                                f.setSize(1200, 700);

    f.setVisible(true);

  }

}

nih hasil print screennya gan...

itu aja deh, semoga bermanfaat, ane cuma mau bagi-bagi informasi aja..hehe :)