/// <summary>
 ///  Handles when the user clicks on the plot
 /// </summary>
 /// <param name="sender"></param>
 /// <param name="e"></param>
 private void canvas_MouseRightButtonDown(object sender, System.Windows.Input.MouseButtonEventArgs e)
 {
     if (e.ClickCount < 2)
     {
         if (((UIElement)sender).CaptureMouse())
         {
             this.Cursor = Cursors.ScrollAll;
             _cursorCoordinateCanvas.Visibility = Visibility.Visible;
             _panZoomCalculator.StartZoom(_cursorCoordinateCanvas.RenderTransform.Inverse.Transform(e.GetPosition(_cursorCoordinateCanvas)));
         }
     }
     else
     {
         _panZoomCalculator.Reset();
     }
 }