WPF Inkcanvas绘制和旋转形状

Question

我想知道如何旋转和移动在wpf中的inkcanvas上绘制的形状。我正在使用VS 2015并开始一个名为WhiteBoard的项目。在该板上我使用Inkcanvas，用于绘制和擦除像圆形，矩形等形状。

在此先感谢。

Answer 1

您可以旋转或移动整个InkCanvas。检查：

<Window.Resources> 
     <Storyboard x:Key="RotateTransformStoryboard"> 
      <DoubleAnimation Storyboard.TargetName="inkCanvas" From="0" To="359" BeginTime="00:00:00" Duration="00:00:05" 
          RepeatBehavior="1" 
          Storyboard.TargetProperty="(UIElement.RenderTransform).(TransformGroup.Children)[0].(RotateTransform.Angle)" > 
      </DoubleAnimation> 

     </Storyboard> 
    </Window.Resources> 
    <Window.Triggers> 
     <EventTrigger RoutedEvent="Button.Click"> 
      <BeginStoryboard Storyboard="{StaticResource RotateTransformStoryboard}"/> 
     </EventTrigger> 
    </Window.Triggers> 
    <Grid> 
     <Grid.RowDefinitions> 
      <RowDefinition Height="*"/> 
      <RowDefinition Height="Auto"/> 
     </Grid.RowDefinitions> 


     <InkCanvas Grid.Row="0" x:Name="inkCanvas" RenderTransformOrigin="0.5,0.5"> 
      <InkCanvas.RenderTransform> 
       <TransformGroup> 
        <RotateTransform Angle="0" /> 
       </TransformGroup> 
      </InkCanvas.RenderTransform>  
     </InkCanvas> 
     <Button x:Name="btn1" Content="transform" Grid.Row="1" Height="30" /> 
    </Grid>