Question

C#的WPF程序，如何使Canvas有旋转效果

Answer 1

不知道提问者指的旋转效果是咋样的，所以就做了两种不同的。有啥问题尽管问哈^ ^
<Window.Resources>
<Storyboard x:Key="ScaleTransformStoryboard">
<DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Duration="00:00:02" RepeatBehavior="Forever" Storyboard.TargetName="canvas1"
Storyboard.TargetProperty="(UIElement.RenderTransform).(TransformGroup.Children)[0].(ScaleTransform.ScaleX)">
<SplineDoubleKeyFrame Value="1"/>
<SplineDoubleKeyFrame Value="-1"/>
<SplineDoubleKeyFrame Value="1"/>
</DoubleAnimationUsingKeyFrames>
</Storyboard>
<Storyboard x:Key="RotateTransformStoryboard">
<DoubleAnimation Storyboard.TargetName="canvas2" From="0" To="359" BeginTime="00:00:00" Duration="00:00:05" RepeatBehavior="Forever"
Storyboard.TargetProperty="(UIElement.RenderTransform).(TransformGroup.Children)[0].(RotateTransform.Angle)" >

</DoubleAnimation>
</Storyboard>
</Window.Resources>
<Window.Triggers>
<EventTrigger RoutedEvent="FrameworkElement.Loaded">
<BeginStoryboard Storyboard="{StaticResource ScaleTransformStoryboard}"/>
<BeginStoryboard Storyboard="{StaticResource RotateTransformStoryboard}"/>
</EventTrigger>
</Window.Triggers>
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition/>
<ColumnDefinition/>
</Grid.ColumnDefinitions>
<Canvas x:Name="canvas1" Width="100" Height="100" Background="Aquamarine" Grid.Column="0">
<Canvas.RenderTransform>
<TransformGroup>
<ScaleTransform ScaleX="1" ScaleY="1"/>
</TransformGroup>
</Canvas.RenderTransform>
</Canvas>

<Canvas x:Name="canvas2" Width="100" Height="100" Background="Aquamarine" Grid.Column="1">
<Canvas.RenderTransform>
<TransformGroup>
<RotateTransform Angle="0" CenterX="0" CenterY="0"/>
</TransformGroup>
</Canvas.RenderTransform>
</Canvas>
</Grid>

追问

啊？谢谢啊，我前段时间不在，今天刚回来，我想让CANVAS可以按自定义角度旋转？可以吗？

中间应该加些什么呢？？？我像在程序代码中控制旋转角度~

追答

里设置的初始角度。里设置的是动画中的旋转角度。你先运行下我给你的代码，看下你要的究竟是何种效果。