Java Swing Tutorial - Java Graphics2D.rotate(double theta, double x, double y)

Syntax

Graphics2D.rotate(double theta, double x, double y) has the following syntax.

public abstract void rotate(double theta,  double x,  double y)

Example

In the following code shows how to use Graphics2D.rotate(double theta, double x, double y) method.

import java.awt.Color;
import java.awt.Graphics;
import java.awt.Graphics2D;
/*from ww w  . j  av a 2s .  co  m*/
import javax.swing.JFrame;
import javax.swing.JPanel;

public class Main extends JPanel {
  public void paint(Graphics g) {
    g.fillRect(0, 0, 20, 20);

    Graphics2D g2 = (Graphics2D) g;

    g2.translate(50, 50);
    g2.rotate(30.0 * Math.PI / 180.0,13,12);

    g2.scale(2.0, 2.0);

    g.setColor(Color.red);

    g.fillRect(0, 0, 20, 20);
  }

  public static void main(String[] args) {
    JFrame frame = new JFrame();
    frame.add(new Main());
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setBounds(20, 20, 500, 500);
    frame.setVisible(true);
  }
}