Transform Demo : Transform « 2D Graphics GUI « Java

1. Java
2. 2D Graphics GUI
3. Transform

Transform Demo

   
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Rectangle;
import java.awt.TexturePaint;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.awt.geom.AffineTransform;
import java.awt.image.BufferedImage;

import javax.swing.JFrame;
import javax.swing.JPanel;

public class TransformDemo extends JPanel {
  public void init() {
    setBackground(Color.white);
  }

  public void paint(Graphics g) {
    Graphics2D g2 = (Graphics2D) g;
    Rectangle rect = new Rectangle(5,5,200,200);
    
    int w = getSize().width;
    int h = getSize().height;
    
    AffineTransform saveXform = g2.getTransform();
    AffineTransform toCenterAt = new AffineTransform();
    toCenterAt.translate(w / 2 - (rect.width / 2), h / 2 - (rect.height / 2));
    g2.transform(toCenterAt);
  
    g2.fill(rect);
    
    g2.transform(saveXform);
  }

  public static void main(String s[]) {
    JFrame f = new JFrame();
    f.addWindowListener(new WindowAdapter() {
      public void windowClosing(WindowEvent e) {
        System.exit(0);
      }
    });
    TransformDemo p = new TransformDemo();
    f.getContentPane().add("Center", p);
    p.init();
    f.pack();
    f.setSize(new Dimension(300, 300));
    f.show();
  }

}
           
         
    
    
  

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5.	Transform Scale
6.	Transform Rotation Translation
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10.	Transform Translation
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12.	AffineTransform demo
13.	Scaling a Drawn Image
14.	Shearing a Drawn Image
15.	Translating a Drawn Image
16.	Rotating a Drawn Image
17.	Create an complex shape by rotating an ellipse.
18.	Scaling a Shape with AffineTransform
19.	Shearing a Shape with AffineTransform
20.	Perform shearing: use share() method.
21.	Translating a Shape with AffineTransform
22.	Rotating a Shape with AffineTransform
23.	Rotating image using Java 2D AffineTransform class
24.	Rotates a shape about the specified coordinates.
25.	Resizes or translates a Shape
26.	Creates and returns a translated shape.