AffineTransform Example
AffineTransform is a Graphics2D class to construct transformations for translating (moving), scaling, flipping, rotating, and shearing. It is typically used in a paintComponent() or paint() method. Here we first render an ellipse.
Then we create an AffineTransform that is a simple translation. This is then used to change the 'shape' of the same ellipse i.e. its position, prior to rendering it.
// AffineTransform translate Example
import java.awt.*;
import java.awt.geom.*;
import javax.swing.*;
class AffineTransformExample extends JApplet {
@Override public void paint(Graphics g) {
super.paint(g);
Graphics2D g2 = (Graphics2D)g;
g2.setStroke(new BasicStroke(10));
Ellipse2D e = new Ellipse2D.Float(100,50,80,200);
g2.draw(e);
AffineTransform at = new AffineTransform();
at.translate(50,20);
g2.setColor(Color.cyan);
g2.draw(at.createTransformedShape(e));
}
}