Java AffineTransform .getRotateInstance (double theta)
Syntax
AffineTransform.getRotateInstance(double theta) has the following syntax.
public static AffineTransform getRotateInstance(double theta)
Example
In the following code shows how to use AffineTransform.getRotateInstance(double theta) method.
/*from w w w .j a v a 2s . co m*/
import java.awt.Container;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Shape;
import java.awt.geom.AffineTransform;
import java.awt.geom.Rectangle2D;
import javax.swing.JComponent;
import javax.swing.JFrame;
public class Main {
public static void main(String[] args) {
JFrame jf = new JFrame("Demo");
Container cp = jf.getContentPane();
MyCanvas tl = new MyCanvas();
cp.add(tl);
jf.setSize(300, 200);
jf.setVisible(true);
}
}
class MyCanvas extends JComponent {
public void paint(Graphics g) {
Shape shape = new Rectangle2D.Float(100, 50, 80, 80);
Graphics2D g2 = (Graphics2D) g;
AffineTransform at = AffineTransform.getRotateInstance(-Math.PI / 6);
g2.setTransform(at);
g2.draw(shape);
}
}