问如何根据鼠标旋转图片框

EN

    private void arrowHead_Tap(object sender, System.Windows.Input.GestureEventArgs e)
    {
        Duration Time_duration = new Duration(TimeSpan.FromSeconds(0.5));
        Storyboard MyStory = new Storyboard();
        MyStory.Duration = Time_duration;
        DoubleAnimation My_Double = new DoubleAnimation();
        My_Double.Duration = Time_duration;
        MyStory.Children.Add(My_Double);
        RotateTransform MyTransform = new RotateTransform();
        Storyboard.SetTarget(My_Double, MyTransform);
        Storyboard.SetTargetProperty(My_Double, new PropertyPath("Angle"));
        My_Double.To = 15;
        arrowHead.RenderTransform = MyTransform;
        arrowHead.RenderTransformOrigin = new Point(0.5, 0.5);

        //stackPanel1.Children.Add(image1);

        MyStory.Begin();
    }