Image Rotate

이미지를 마우스로 회전 하는 예제입니다.

 

 

소스는 다음과 같습니다.

public partial class Window1 : Window     {         private RotateTransform rotateTransform;         private double angle;         private double rotate;         private Vector position;           public Window1()         {             InitializeComponent();             Loaded += new RoutedEventHandler(Window1_Loaded);         }           private void Window1_Loaded(object sender, RoutedEventArgs e)         {             vinyl.MouseLeftButtonDown += new MouseButtonEventHandler(vinyl_MouseLeftButtonDown);             vinyl.MouseMove += new MouseEventHandler(vinyl_MouseMove);             vinyl.MouseLeftButtonUp += new MouseButtonEventHandler(vinyl_MouseLeftButtonUp);               rotateTransform = new RotateTransform();             vinyl.RenderTransform = rotateTransform;             vinyl.RenderTransformOrigin = new Point(0.5, 0.5);               position = VisualTreeHelper.GetOffset(vinyl);             position.X += vinyl.Width / 2;             position.Y += vinyl.Height / 2;            }           private void vinyl_MouseLeftButtonUp(object sender, MouseButtonEventArgs e)         {             Mouse.Capture(vinyl, CaptureMode.None);         }           private void vinyl_MouseMove(object sender, MouseEventArgs e)         {             if (e.LeftButton == MouseButtonState.Pressed)             {                 Point currentPoint = e.GetPosition(this);                   double _angle = Math.Atan2(position.Y - currentPoint.Y, position.X - currentPoint.X) * (180 / Math.PI);                 rotateTransform.Angle = rotate + _angle - angle;             }         }           private void vinyl_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)         {             Mouse.Capture(vinyl, CaptureMode.Element);             Point point = e.GetPosition(this);                         angle = Math.Atan2(position.Y - point.Y, position.X - point.X) * (180 / Math.PI);             rotate = rotateTransform.Angle;         }     }

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