MatrixAnimationUsingPath对路径的周围（轮廓）进行动画处理

时间：2015-05-06 12:46:33

标签： c# wpf xaml animation pathgeometry

我有一个路径数据，我从syncfusion程序coppy它。 我在我的页面中有一个包含该数据的路径，并希望在路径中精确地设置对象的动画（在路径中间），但问题是对象在路径的轮廓（周围）上移动。

这是代码：

<Canvas ClipToBounds="False" Margin="435,58,279,445" Width="70" Height="70">
                <Path Name="pp" Data="M29.073618888855,0C29.1124091148376,1.1444091796875E-05 29.1515617370605,0.00176620483398438 29.1909990310669,0.00532913208007813 29.810998916626,0.0533294677734375 30.3119988441467,0.530315399169922 30.3919982910156,1.14829635620117L30.5836410522461,2.65130615234375 31.2817029953003,8.12605285644531 34.8569983541965,36.1663000583649 38.6119983196259,11.4410037994385C38.6989989280701,10.8670196533203 39.1539988517761,10.4180335998535 39.7279987335205,10.3390350341797 40.3039989471436,10.2600383758545 40.8659987449646,10.5700283050537 41.1039986610413,11.0990142822266L44.5239992141724,18.6847972869873 62.6889991760254,18.6847972869873C63.4129981994629,18.6847972869873 63.9999980926514,19.2727813720703 63.9999980926514,19.9957599639893 63.9999980926514,20.720739364624 63.4129981994629,21.3077239990234 62.6889991760254,21.3077239990234L43.6779985427856,21.3077239990234C43.1629986763,21.3077239990234,42.6949987411499,21.004732131958,42.4809985160828,20.5357456207275L40.5379986763,16.2248687744141 36.0409992933273,45.8410243988037C35.9439988136292,46.4820065498352,35.3929988443851,46.9559931755066,34.7459992468357,46.9559926986694L34.729998499155,46.9559926986694C34.0749988555908,46.9479932785034,33.5279988050461,46.4590072631836,33.4449987411499,45.8100252151489L28.5969982147217,7.7971076965332 19.7799987792969,38.5482323169708C19.6119985580444,39.1362158469856 19.0699996948242,39.5222048461437 18.4459991455078,39.4962055683136 17.8359985351563,39.4622065722942 17.3289985656738,39.0092194601893 17.2269992828369,38.4062369465828L13.6579990386963,17.2688388824463 10.7719993591309,23.3446655273438C10.5559997558594,23.8016519546509,10.0949993133545,24.0936441421509,9.58799934387207,24.0936441421509L1.31099700927734,24.0936441421509C0.587997436523438,24.0936441421509 0,23.5056610107422 0,22.7826805114746 0,22.0577011108398 0.587997436523438,21.4717178344727 1.31099700927734,21.4717178344727L8.75799942016602,21.4717178344727 13.0749988555908,12.3859767913818C13.3199996948242,11.8689918518066 13.8699989318848,11.57200050354 14.4389991760254,11.6499977111816 15.0059986114502,11.7299957275391 15.4579982757568,12.1669826507568 15.5519981384277,12.7309665679932L18.8509979248047,32.2744116783142 27.8319988250732,0.952301025390625C27.9913740158081,0.391693115234375,28.4917645454407,-0.000171661376953125,29.073618888855,0z" 
                  Stretch="Uniform" Fill="White" Width="70" Height="70" StrokeThickness="0" />
                    <Rectangle Fill="#FFFF4600"  RenderTransformOrigin="0.5,0.5" Width="4" Height="4" Canvas.Top="4">
                    <Rectangle.RenderTransform>
                        <TransformGroup>
                            <MatrixTransform x:Name="tt">
                                <MatrixTransform.Matrix>
                                    <Matrix />
                                </MatrixTransform.Matrix>
                            </MatrixTransform>
                        </TransformGroup>
                    </Rectangle.RenderTransform>
                    <Rectangle.Triggers>
                        <EventTrigger RoutedEvent="FrameworkElement.Loaded">
                            <BeginStoryboard>
                                <Storyboard>
                                    <MatrixAnimationUsingPath Duration="0:0:10" Storyboard.TargetName="tt" Storyboard.TargetProperty="Matrix" AutoReverse="True" DoesRotateWithTangent="True" 
                                                             >
                                        <MatrixAnimationUsingPath.PathGeometry>
                                            <PathGeometry Figures="M29.073618888855,0C29.1124091148376,1.1444091796875E-05 29.1515617370605,0.00176620483398438 29.1909990310669,0.00532913208007813 29.810998916626,0.0533294677734375 30.3119988441467,0.530315399169922 30.3919982910156,1.14829635620117L30.5836410522461,2.65130615234375 31.2817029953003,8.12605285644531 34.8569983541965,36.1663000583649 38.6119983196259,11.4410037994385C38.6989989280701,10.8670196533203 39.1539988517761,10.4180335998535 39.7279987335205,10.3390350341797 40.3039989471436,10.2600383758545 40.8659987449646,10.5700283050537 41.1039986610413,11.0990142822266L44.5239992141724,18.6847972869873 62.6889991760254,18.6847972869873C63.4129981994629,18.6847972869873 63.9999980926514,19.2727813720703 63.9999980926514,19.9957599639893 63.9999980926514,20.720739364624 63.4129981994629,21.3077239990234 62.6889991760254,21.3077239990234L43.6779985427856,21.3077239990234C43.1629986763,21.3077239990234,42.6949987411499,21.004732131958,42.4809985160828,20.5357456207275L40.5379986763,16.2248687744141 36.0409992933273,45.8410243988037C35.9439988136292,46.4820065498352,35.3929988443851,46.9559931755066,34.7459992468357,46.9559926986694L34.729998499155,46.9559926986694C34.0749988555908,46.9479932785034,33.5279988050461,46.4590072631836,33.4449987411499,45.8100252151489L28.5969982147217,7.7971076965332 19.7799987792969,38.5482323169708C19.6119985580444,39.1362158469856 19.0699996948242,39.5222048461437 18.4459991455078,39.4962055683136 17.8359985351563,39.4622065722942 17.3289985656738,39.0092194601893 17.2269992828369,38.4062369465828L13.6579990386963,17.2688388824463 10.7719993591309,23.3446655273438C10.5559997558594,23.8016519546509,10.0949993133545,24.0936441421509,9.58799934387207,24.0936441421509L1.31099700927734,24.0936441421509C0.587997436523438,24.0936441421509 0,23.5056610107422 0,22.7826805114746 0,22.0577011108398 0.587997436523438,21.4717178344727 1.31099700927734,21.4717178344727L8.75799942016602,21.4717178344727 13.0749988555908,12.3859767913818C13.3199996948242,11.8689918518066 13.8699989318848,11.57200050354 14.4389991760254,11.6499977111816 15.0059986114502,11.7299957275391 15.4579982757568,12.1669826507568 15.5519981384277,12.7309665679932L18.8509979248047,32.2744116783142 27.8319988250732,0.952301025390625C27.9913740158081,0.391693115234375,28.4917645454407,-0.000171661376953125,29.073618888855,0z">

                                            </PathGeometry>
                                        </MatrixAnimationUsingPath.PathGeometry>
                                    </MatrixAnimationUsingPath>
                                </Storyboard>
                            </BeginStoryboard>
                        </EventTrigger>
                    </Rectangle.Triggers>
                </Rectangle>
 </Canvas>

编辑1：我的动画出错了。我希望我的矩形移动精确到内部和路径中间。看到你的电脑中的代码你会看到问题。 我的问题是如何解决这个问题？

编辑2：我用DoubleAnimationUsingPath改变动画相同的结果

编辑3：enter image description here

1 个答案:

答案 0 :(得分：4)

您的Path实际上是一个封闭的多边形，而不是一条线，因此Rectangle会在轮廓上移动。

试试这个：

    <Canvas ClipToBounds="False" Width="400" Height="400">
        <Path StrokeThickness="8" StrokeStartLineCap="Round" StrokeEndLineCap="Round" StrokeLineJoin="Round" Stroke="Red">
            <Path.Data>
                <PathGeometry Figures="M 86,315 L 120,314 L 136,271 L 148,358 L 174,214 L 204,388 L 220,270 L 244,316 L 318,316" />
            </Path.Data>
        </Path>
        <Rectangle Fill="Blue"  RenderTransformOrigin="0.5,0.5" Width="4" Height="4" Margin="-2">
            <Rectangle.RenderTransform>
                <TransformGroup>
                    <MatrixTransform x:Name="tt">
                        <MatrixTransform.Matrix>
                            <Matrix />
                        </MatrixTransform.Matrix>
                    </MatrixTransform>
                </TransformGroup>
            </Rectangle.RenderTransform>
            <Rectangle.Triggers>
                <EventTrigger RoutedEvent="FrameworkElement.Loaded">
                    <BeginStoryboard>
                        <Storyboard>
                            <MatrixAnimationUsingPath Duration="0:0:10" Storyboard.TargetName="tt" Storyboard.TargetProperty="Matrix" AutoReverse="True" DoesRotateWithTangent="True" 
                                                         >
                                <MatrixAnimationUsingPath.PathGeometry>
                                    <PathGeometry Figures="M 86,315 L 120,314 L 136,271 L 148,358 L 174,214 L 204,388 L 220,270 L 244,316 L 318,316">
                                    </PathGeometry>
                                </MatrixAnimationUsingPath.PathGeometry>
                            </MatrixAnimationUsingPath>
                        </Storyboard>
                    </BeginStoryboard>
                </EventTrigger>
            </Rectangle.Triggers>
        </Rectangle>
    </Canvas>
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