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[英]How to create a cube in 2D view and scale it based on a point/anchor? Then visualize the cube in 3D
[英]How to insert 2d control in the wpf 3d cube
我在WPF中使用Viewport3D创建了一个3d多维数据集。由于要在每个面上显示不同的内容,所以在Viewport中创建了6个GeometryModel3D。我想在多维数据集的一个面(正面)上插入一个用户交互按钮控件。我知道我们应该为此使用Viewport2DVisual3D,但是我找不到解决方案,可以使用Viewport2DVisual3D在脸部插入第二个控件,请帮帮我,下面是我写的Xamal代码:
<Grid>
<Viewport3D>
<Viewport3D.Camera>
<PerspectiveCamera Position="0,0,25" LookDirection="15,6,-50" />
</Viewport3D.Camera>
<ModelVisual3D>
<ModelVisual3D.Content>
<!--<AmbientLight Color="White" />-->
<SpotLight Color="White" InnerConeAngle="20" OuterConeAngle="60" Direction="15,6,-50" Position="0,0,25" />
</ModelVisual3D.Content>
</ModelVisual3D>
<ModelVisual3D>
<ModelVisual3D.Content>
<Model3DGroup>
<!-- front -->
<GeometryModel3D>
<GeometryModel3D.Geometry>
<MeshGeometry3D
Positions="0 0 0, 10 0 0, 0 16 0, 10 16 0, 10 0 0"
TriangleIndices="0, 1, 2, 2, 4, 3"
TextureCoordinates="0 1, 1 1, 0 0, 1 0, 1 1"
/>
</GeometryModel3D.Geometry>
<GeometryModel3D.Material>
<DiffuseMaterial Brush="White"/>
</GeometryModel3D.Material>
<Viewport2DVisual3D>
<StackPanel>
<Button>Hello, 3D</Button>
</StackPanel>
</Viewport2DVisual3D>
</GeometryModel3D>
<!-- left -->
<GeometryModel3D>
<GeometryModel3D.Geometry>
<MeshGeometry3D
Positions="0 0 -.5, 0 0 0, 0 14 -.5, 0 14 0, 0 0 0"
TriangleIndices="0, 1, 2, 2, 4, 3" />
</GeometryModel3D.Geometry>
<GeometryModel3D.Material>
<MaterialGroup>
<DiffuseMaterial Brush="{StaticResource side}" />
</MaterialGroup>
</GeometryModel3D.Material>
<GeometryModel3D.BackMaterial>
<DiffuseMaterial Color="Blue" />
</GeometryModel3D.BackMaterial>
</GeometryModel3D>
<GeometryModel3D>
<GeometryModel3D.Geometry>
<MeshGeometry3D
Positions="0 14 -4, 0 14 0, 0 16 -4, 0 16 0, 0 14 0"
TriangleIndices="0, 1, 2, 2, 4, 3" />
</GeometryModel3D.Geometry>
<GeometryModel3D.Material>
<MaterialGroup>
<DiffuseMaterial Brush="{StaticResource top}" />
</MaterialGroup>
</GeometryModel3D.Material>
<GeometryModel3D.BackMaterial>
<DiffuseMaterial Color="Blue" />
</GeometryModel3D.BackMaterial>
</GeometryModel3D>
<!-- right -->
<GeometryModel3D>
<GeometryModel3D.Geometry>
<MeshGeometry3D
Positions="10 0 0, 10 0 -.5, 10 16 0, 10 16 -.5, 10 0 -.5"
TriangleIndices="0, 1, 2, 2, 4, 3" />
</GeometryModel3D.Geometry>
<GeometryModel3D.Material>
<MaterialGroup>
<DiffuseMaterial Brush="{StaticResource top}" />
</MaterialGroup>
</GeometryModel3D.Material>
<GeometryModel3D.BackMaterial>
<DiffuseMaterial Color="Blue" />
</GeometryModel3D.BackMaterial>
</GeometryModel3D>
<!-- top side -->
<GeometryModel3D>
<GeometryModel3D.Geometry>
<MeshGeometry3D
Positions="0 16 0, 0 16 -.5, 10 16 0, 10 16 -.5, 0 16 -.5"
TriangleIndices="0, 2, 1, 2, 3, 4"
TextureCoordinates="0 1, 0 0, 1 1, 1 0, 0 0"
/>
</GeometryModel3D.Geometry>
<GeometryModel3D.Material>
<MaterialGroup>
<DiffuseMaterial Brush="{StaticResource pages}" />
</MaterialGroup>
</GeometryModel3D.Material>
<GeometryModel3D.BackMaterial>
<DiffuseMaterial Color="Blue" />
</GeometryModel3D.BackMaterial>
</GeometryModel3D>
<!-- bottom -->
<GeometryModel3D>
<GeometryModel3D.Geometry>
<MeshGeometry3D
Positions="0 0 0, 0 0 -.5, 10 0 0, 10 0 -.5, 0 0 -.5"
TriangleIndices="0, 1, 2, 2, 4, 3"
TextureCoordinates="0 1, 0 0, 1 1, 1 0, 0 0"
/>
</GeometryModel3D.Geometry>
<GeometryModel3D.Material>
<DiffuseMaterial Brush="{StaticResource pages}" />
</GeometryModel3D.Material>
<GeometryModel3D.BackMaterial>
<DiffuseMaterial Color="Blue" />
</GeometryModel3D.BackMaterial>
</GeometryModel3D>
<!-- back -->
<GeometryModel3D>
<GeometryModel3D.Geometry>
<MeshGeometry3D
Positions="0 0 -.5, 10 0 -.5, 0 16 -.5, 10 16 -.5, 10 0 -.5"
TriangleIndices="0, 2, 1, 2, 3, 4" />
</GeometryModel3D.Geometry>
<GeometryModel3D.Material>
<MaterialGroup>
<DiffuseMaterial Brush="{StaticResource back}" />
</MaterialGroup>
</GeometryModel3D.Material>
<GeometryModel3D.BackMaterial>
<DiffuseMaterial Color="Blue" />
</GeometryModel3D.BackMaterial>
</GeometryModel3D>
</Model3DGroup>
</ModelVisual3D.Content>
</ModelVisual3D>
</Viewport3D>
</Grid>
您在这里做错了几件事。 Viewport2DVisual3D不在GeometryModel3D内,而是将其替换。 这也意味着您必须将其拉到Model3DGroup之外。 最后,您需要设置Viewport2DVisual3D.IsVisualHostMaterial
以便WPF知道也将画笔用于2D元素。 这应该足以让您入门:
<Grid>
<Viewport3D>
<Viewport3D.Camera>
<PerspectiveCamera Position="-10,0,50" LookDirection="15,10,-50" />
</Viewport3D.Camera>
<ModelVisual3D>
<ModelVisual3D.Content>
<!--<AmbientLight Color="White" />-->
<SpotLight Color="White" InnerConeAngle="20" OuterConeAngle="60" Direction="15,6,-50" Position="0,0,25" />
</ModelVisual3D.Content>
</ModelVisual3D>
<!-- front -->
<Viewport2DVisual3D>
<Viewport2DVisual3D.Geometry>
<MeshGeometry3D
Positions="0 0 0, 10 0 0, 0 16 0, 10 16 0, 10 0 0"
TriangleIndices="0, 1, 2, 2, 4, 3"
TextureCoordinates="0 1, 1 1, 0 0, 1 0, 1 1"
/>
</Viewport2DVisual3D.Geometry>
<Viewport2DVisual3D.Material>
<DiffuseMaterial Viewport2DVisual3D.IsVisualHostMaterial="True" Brush="White"/>
</Viewport2DVisual3D.Material>
<StackPanel>
<Button>Hello, 3D</Button>
</StackPanel>
</Viewport2DVisual3D>
</Viewport3D>
</Grid>
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