WPF 3D中两个ViewPort3D对象是否可以重叠呢？

danxuezx 2012-10-31 11:37:20

代码如下面所示：

 <Window x:Class="Instant_Swipe.MainWindow"

        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

        Height="768"

        Width="1366"  >



    <Grid  >

        <Canvas Name="m_LeftCanvas" MouseDown="OnLeftCanvasMouseDown" Height="768" Width="642" Margin="0,0,0,0" 

                HorizontalAlignment="Left" VerticalAlignment="Top"> 

        </Canvas>

        <Canvas  Height="768" Width="638" Margin="642,0,0,0">

            <Viewport3D Name="mainViewport" HorizontalAlignment="Left" VerticalAlignment="Top"  Margin="0,0,0,0" 

                        Opacity="1" Height="768" Width="638" ClipToBounds="False">

            </Viewport3D>



            <Viewport3D Canvas.Left="1069" Canvas.Top="446" Canvas.Right="1275" Canvas.Bottom="687" Width="206" Height="241">

                <Viewport3D.Camera>

                    <PerspectiveCamera

                    Position="0,0,15"

                    LookDirection="0,0,-15"

                    UpDirection="0,1,0" 

                    />

                </Viewport3D.Camera>



                <ModelVisual3D>

                    <ModelVisual3D.Content>

                        <DirectionalLight Color="Red" Direction="10,10,10" />

                    </ModelVisual3D.Content>

                </ModelVisual3D>



                <Viewport2DVisual3D>

                    <Viewport2DVisual3D.Geometry>

                        <MeshGeometry3D  

                        Positions="-100,-100,1 100,-100,1 100,100,1 -100,100,1"

                        TriangleIndices="0 1 2 2 3 0"

                        Normals="0,0,1 0,0,1 0,0,1 0,0,1"

                        TextureCoordinates="0,1 1,1 1,0 0,0" />



                    </Viewport2DVisual3D.Geometry>



                    <Viewport2DVisual3D.Material>

                        <DiffuseMaterial Viewport2DVisual3D.IsVisualHostMaterial="True"  >



                        </DiffuseMaterial>

                    </Viewport2DVisual3D.Material>



                    <Viewport2DVisual3D.Visual>

                        <Border BorderBrush="Blue" BorderThickness="1">

                            <StackPanel  Orientation="Vertical" VerticalAlignment="Top">

                                <Slider    Orientation="Horizontal" Background="red" Width="100" Height="20"/>



                            </StackPanel>

                        </Border>

                    </Viewport2DVisual3D.Visual>

                </Viewport2DVisual3D>

            </Viewport3D>

        </Canvas>    

         

        <Canvas  Height="768" Width="86" Margin="1367,0,0,0">

        </Canvas>

    </Grid>

</Window>

在上面代码中第二个canvas中包含两个ViewPort3D，第一个通过后台代码向其中添加了一些3d元素，它其实是占据整个Canvas空间的，现在我想在这个空间中挖一小块出来再放一个Viewport3D，最后想要的效果是想让第二个Viewport3D上的内容覆盖在第一个Viewport3D的右下角。但是现在第二个始终看不到。

请教各位大侠，上面的这种想法能够实现吗，如果能够能够实现我的代码问题又出在哪里呢？

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E次奥 2012-12-14

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绘图方面一直是难点！！！

Lee_20121128 2012-12-14

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你可以建个用户控件啊！

danxuezx 2012-10-31

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上面代码关键部分标记了颜色却没有显示出来，重新标记一下：

<Viewport3D Name="mainViewport" HorizontalAlignment="Left" VerticalAlignment="Top" Margin="0,0,0,0"
Opacity="1" Height="768" Width="638" ClipToBounds="False">
</Viewport3D>

<Viewport3D Canvas.Left="1069" Canvas.Top="446" Canvas.Right="1275" Canvas.Bottom="687" Width="206" Height="241">

danxuezx 2012-10-31