问在java中旋转矩形对象

EN

Rectangle2D myRect = new Rectangle2D.Double(100, 100, 200, 200);
AffineTransform at = AffineTransform.getRotateInstance(Math.PI / 4, 150, 150);
Shape rotatedRect = at.createTransformedShape(myRect);

public void paintComponent(Graphics g) {
    super.paintComponent(g);
    Graphics2D g2d = (Graphics2D) g;
    AffineTransform oldTransform = g2d.getTransform();
    g2d.setTransform(AffineTransform.getRotateInstance(radians);
    g2d.draw(rectangle);
    g2d.setTransform(oldTransform);
}

import java.awt.geom.*;

public class Example {
    private final Path2D hitBox;

    public Example(Rectangle2D initialHitBox) {
        this.hitBox = new Path2D.Double(initialHitBox);
    }

    public void transform(AffineTransform tx) {
        path.transform(tx); // In-place transformation.
    }

    // ...
}