旋轉矩形和調整位置

我目前正在努力與一些矩形的旋轉。我有一個由9個小矩形組成的矩形。 http://i57.tinypic.com/msn8ue.jpg 旋轉矩形和調整位置

現在我旋轉大矩形相應的仿射變換，它工作得很好。 http://i61.tinypic.com/25phlqp.jpg

我的問題是，我現在需要移動矩形，以便每個矩形的左上角位置在點x，y。

我不知道該怎麼做，我希望你能幫助我。

謝謝！

public class MainClass { 
    public static void main(String[] args) { 
     JFrame jf = new JFrame("Demo"); 
     Container cp = jf.getContentPane(); 
     MyCanvas tl = new MyCanvas(); 
     cp.add(tl); 
     jf.setSize(800, 800); 
     jf.setVisible(true); 
    } 
} 

class MyCanvas extends JComponent { 

    private static final long serialVersionUID = 5703217428905757134L; 

    @Override 
    public void paint(Graphics g) { 
     Graphics2D g2 = (Graphics2D) g; 

     g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON); 

     int x = 400; 
     int y = 400; 
     int width = 100; 
     int height = 200; 
     final int OVERLAPPING_OUTLINE = 10; 

     Rectangle[] rect = new Rectangle[9]; 

     rect[0] = new Rectangle(x + OVERLAPPING_OUTLINE, y + OVERLAPPING_OUTLINE, width - 2 * OVERLAPPING_OUTLINE, height - 2 
       * OVERLAPPING_OUTLINE); 

     rect[1] = new Rectangle(x - OVERLAPPING_OUTLINE, y - OVERLAPPING_OUTLINE, OVERLAPPING_OUTLINE * 2, 
       OVERLAPPING_OUTLINE * 2); 
     rect[2] = new Rectangle(x - OVERLAPPING_OUTLINE + width, y - OVERLAPPING_OUTLINE, OVERLAPPING_OUTLINE * 2, 
       OVERLAPPING_OUTLINE * 2); 

     rect[3] = new Rectangle(x - OVERLAPPING_OUTLINE, y + height - OVERLAPPING_OUTLINE, OVERLAPPING_OUTLINE * 2, 
       OVERLAPPING_OUTLINE * 2); 

     rect[4] = new Rectangle(x - OVERLAPPING_OUTLINE + width, y + height - OVERLAPPING_OUTLINE, OVERLAPPING_OUTLINE * 2, 
       OVERLAPPING_OUTLINE * 2); 
     rect[5] = new Rectangle(x - OVERLAPPING_OUTLINE, y + OVERLAPPING_OUTLINE, OVERLAPPING_OUTLINE * 2, height 
       - OVERLAPPING_OUTLINE * 2); 
     rect[6] = new Rectangle(x - OVERLAPPING_OUTLINE + width, y + OVERLAPPING_OUTLINE, OVERLAPPING_OUTLINE * 2, height 
       - OVERLAPPING_OUTLINE * 2); 
     rect[7] = new Rectangle(x + OVERLAPPING_OUTLINE, y - OVERLAPPING_OUTLINE, width - OVERLAPPING_OUTLINE * 2, 
       2 * OVERLAPPING_OUTLINE); 
     rect[8] = new Rectangle(x + OVERLAPPING_OUTLINE, y + height - OVERLAPPING_OUTLINE, width - OVERLAPPING_OUTLINE * 2, 
       2 * OVERLAPPING_OUTLINE); 

     for (Rectangle r : rect) 
      g2.draw(r); 
     g2.setColor(Color.RED); 

     AffineTransform af = new AffineTransform(); 

     for (int i = 90; i < 360; i += 90) { 
      af.rotate(Math.toRadians(i), x - OVERLAPPING_OUTLINE, y - OVERLAPPING_OUTLINE); 
      for (Rectangle r : rect) { 
       Shape shape = af.createTransformedShape(r); 
       g2.draw(shape); 
      } 
     } 
    } 
}

來源

2014-10-20 user2948795

看起來你需要使用AffineTransform.translate(double tx, double ty)。

來源

2015-08-05 04:23:49

旋轉矩形和調整位置

回答

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