<DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Storyboard.TargetName="fan"
Storyboard.TargetProperty="(UIElement.RenderTransform).(TransformGroup.Children)[2].(RotateTransform.Angle)">
<EasingDoubleKeyFrame KeyTime="00:00:01" Value="360"/>
</DoubleAnimationUsingKeyFrames>
</Storyboard>
执行这个旋转动画可以看到效果,名为“fan”的元素将在一秒钟内旋转360度。同样也可以通过编程的方式来动态的创建该旋转动画,详细如下代码块:
{
//创建动画容器时间线
Storyboard storyboard = new Storyboard();
//创建旋转动画
DoubleAnimation doubleAnimation = new DoubleAnimation();
doubleAnimation.To = 360;
doubleAnimation.Duration = new Duration(new TimeSpan(0, 0, 1));
Storyboard.SetTarget(doubleAnimation, fan);
Storyboard.SetTargetProperty(doubleAnimation,
new PropertyPath("(UIElement.RenderTransform).(TransformGroup.Children)[2].(RotateTransform.Angle)"));
storyboard.Children.Add(doubleAnimation);
}
<Path x:Name="path" Stretch="Fill" Stroke="Black" Height="194.494" Width="1" UseLayoutRounding="False"
Canvas.Left="303" Canvas.Top="184" Data="M408,256 L408,449.49417" StrokeThickness="6" Opacity="0.78"
StrokeStartLineCap="Round" StrokeEndLineCap="Round">
<Path.Fill>
<LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
<GradientStop Color="#FFBA6161" Offset="0"/>
<GradientStop Color="#FF306C0A" Offset="1"/>
</LinearGradientBrush>
</Path.Fill>
</Path>
</Canvas>
注意上面设置ZIndex值是为了将线条呈现到旋转动画的后面去,这样给人一种旋转动画是在线条的一端不停的选择,看起就像是一个风车在旋转一样,实际上就是一种视觉欺骗,记得我一个做3D游戏开发的朋友给我说过,3D游戏里的大多数效果全都是视觉欺骗,嘎嘎~~~~~~~~~~,OK,现在运行动画的效果则如下截图: