Scaling an object : Transform « 2D Graphics GUI « Java






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

Scaling an object

   

import java.awt.Color;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.geom.AffineTransform;

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

public class Scale extends JPanel {

  public void paint(Graphics g) {
    super.paint(g);
    Graphics2D g2d = (Graphics2D) g;

    g2d.setColor(new Color(150, 150, 150));
    g2d.fillRect(0, 0, 80, 50);

    AffineTransform tx1 = new AffineTransform();
    tx1.translate(110, 20);
    tx1.scale(0.5, 0.5);

    g2d.setTransform(tx1);
    g2d.fillRect(0, 0, 80, 50);

    AffineTransform tx2 = new AffineTransform();
    tx2.translate(200, 20);
    tx2.scale(1.5, 1.5);

    g2d.setTransform(tx2);
    g2d.fillRect(0, 0, 80, 50);

  }

  public static void main(String[] args) {

    JFrame frame = new JFrame("Scaling");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.add(new Scale());
    frame.setSize(330, 160);
    frame.setLocationRelativeTo(null);
    frame.setVisible(true);
  }
}








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