eclipse 倾斜图片位置

package awt;
import java.awt.*;
import java.net.URL;
import javax.swing.*;
import awt.RotateImage.MyCanvas;
public class TiltImage extends JFrame{
  private Image img;
  private MyCanvas canvasPanel=null;
  public TiltImage() {
    initialize();
    //shear方法倾斜
  }
  private void initialize() {
    URL imgUrl=TiltImage.class.getResource("picture.jpg");
    img=Toolkit.getDefaultToolkit().getImage(imgUrl);
    canvasPanel=new MyCanvas();
    this.setBounds(100,100,400,350);
    add(canvasPanel);
    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    this.setTitle("图片倾斜");
  }
  public static void main(String[]args) {
    new TiltImage().setVisible(true);
  }
  class MyCanvas extends JPanel{
    public void paint(Graphics g) {
      Graphics2D g2=(Graphics2D)g;
      g2.shear(0.3,0);
      g2.drawImage(img, 70,10,300, 200,this);
    }
  }
}