以下xmal是我从msdn上复制下来的。是用于在wpf中创建3d模型的实例
链接https://msdn.microsoft.com/zh-cn/library/ms747437.aspx
看它的使用方式。我画了个比较马虎的逻辑图。
1 <UserControl x:Class="HostingWpfUserControlInWf.UserControl1"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
> <Grid> <!-- Place a Label control at the top of the view. -->
<Label
HorizontalAlignment="Center"
TextBlock.TextAlignment="Center"
FontSize="20"
Foreground="Red"
Content="Model: Cone"/> <!-- Viewport3D is the rendering surface. -->
<Viewport3D Name="myViewport" > <!-- Add a camera. -->
<Viewport3D.Camera>
<PerspectiveCamera
FarPlaneDistance="20"
LookDirection="0,0,1"
UpDirection="0,1,0"
NearPlaneDistance="1"
Position="0,0,-3"
FieldOfView="45" />
</Viewport3D.Camera> <!-- Add models. -->
<Viewport3D.Children> <ModelVisual3D>
<ModelVisual3D.Content> <Model3DGroup >
<Model3DGroup.Children> <!-- Lights, MeshGeometry3D and DiffuseMaterial objects are added to the ModelVisual3D. -->
<DirectionalLight Color="#FFFFFFFF" Direction="3,-4,5" /> <!-- Define a red cone. -->
<GeometryModel3D> <GeometryModel3D.Geometry>
<MeshGeometry3D
Positions="0.293893 -0.5 0.404509 0.475528 -0.5 0.154509 0 0.5 0 0.475528 -0.5 0.154509 0 0.5 0 0 0.5 0 0.475528 -0.5 0.154509 0.475528 -0.5 -0.154509 0 0.5 0 0.475528 -0.5 -0.154509 0 0.5 0 0 0.5 0 0.475528 -0.5 -0.154509 0.293893 -0.5 -0.404509 0 0.5 0 0.293893 -0.5 -0.404509 0 0.5 0 0 0.5 0 0.293893 -0.5 -0.404509 0 -0.5 -0.5 0 0.5 0 0 -0.5 -0.5 0 0.5 0 0 0.5 0 0 -0.5 -0.5 -0.293893 -0.5 -0.404509 0 0.5 0 -0.293893 -0.5 -0.404509 0 0.5 0 0 0.5 0 -0.293893 -0.5 -0.404509 -0.475528 -0.5 -0.154509 0 0.5 0 -0.475528 -0.5 -0.154509 0 0.5 0 0 0.5 0 -0.475528 -0.5 -0.154509 -0.475528 -0.5 0.154509 0 0.5 0 -0.475528 -0.5 0.154509 0 0.5 0 0 0.5 0 -0.475528 -0.5 0.154509 -0.293892 -0.5 0.404509 0 0.5 0 -0.293892 -0.5 0.404509 0 0.5 0 0 0.5 0 -0.293892 -0.5 0.404509 0 -0.5 0.5 0 0.5 0 0 -0.5 0.5 0 0.5 0 0 0.5 0 0 -0.5 0.5 0.293893 -0.5 0.404509 0 0.5 0 0.293893 -0.5 0.404509 0 0.5 0 0 0.5 0 "
Normals="0.7236065,0.4472139,0.5257313 0.2763934,0.4472138,0.8506507 0.5308242,0.4294462,0.7306172 0.2763934,0.4472138,0.8506507 0,0.4294458,0.9030925 0.5308242,0.4294462,0.7306172 0.2763934,0.4472138,0.8506507 -0.2763934,0.4472138,0.8506507 0,0.4294458,0.9030925 -0.2763934,0.4472138,0.8506507 -0.5308242,0.4294462,0.7306172 0,0.4294458,0.9030925 -0.2763934,0.4472138,0.8506507 -0.7236065,0.4472139,0.5257313 -0.5308242,0.4294462,0.7306172 -0.7236065,0.4472139,0.5257313 -0.858892,0.429446,0.279071 -0.5308242,0.4294462,0.7306172 -0.7236065,0.4472139,0.5257313 -0.8944269,0.4472139,0 -0.858892,0.429446,0.279071 -0.8944269,0.4472139,0 -0.858892,0.429446,-0.279071 -0.858892,0.429446,0.279071 -0.8944269,0.4472139,0 -0.7236065,0.4472139,-0.5257313 -0.858892,0.429446,-0.279071 -0.7236065,0.4472139,-0.5257313 -0.5308242,0.4294462,-0.7306172 -0.858892,0.429446,-0.279071 -0.7236065,0.4472139,-0.5257313 -0.2763934,0.4472138,-0.8506507 -0.5308242,0.4294462,-0.7306172 -0.2763934,0.4472138,-0.8506507 0,0.4294458,-0.9030925 -0.5308242,0.4294462,-0.7306172 -0.2763934,0.4472138,-0.8506507 0.2763934,0.4472138,-0.8506507 0,0.4294458,-0.9030925 0.2763934,0.4472138,-0.8506507 0.5308249,0.4294459,-0.7306169 0,0.4294458,-0.9030925 0.2763934,0.4472138,-0.8506507 0.7236068,0.4472141,-0.5257306 0.5308249,0.4294459,-0.7306169 0.7236068,0.4472141,-0.5257306 0.8588922,0.4294461,-0.27907 0.5308249,0.4294459,-0.7306169 0.7236068,0.4472141,-0.5257306 0.8944269,0.4472139,0 0.8588922,0.4294461,-0.27907 0.8944269,0.4472139,0 0.858892,0.429446,0.279071 0.8588922,0.4294461,-0.27907 0.8944269,0.4472139,0 0.7236065,0.4472139,0.5257313 0.858892,0.429446,0.279071 0.7236065,0.4472139,0.5257313 0.5308242,0.4294462,0.7306172 0.858892,0.429446,0.279071 " TriangleIndices="0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 " />
</GeometryModel3D.Geometry> <GeometryModel3D.Material>
<DiffuseMaterial>
<DiffuseMaterial.Brush>
<SolidColorBrush
Color="Red"
Opacity="1.0"/>
</DiffuseMaterial.Brush>
</DiffuseMaterial>
</GeometryModel3D.Material> </GeometryModel3D> </Model3DGroup.Children>
</Model3DGroup> </ModelVisual3D.Content> </ModelVisual3D> </Viewport3D.Children> </Viewport3D>
</Grid> </UserControl>
其实，最为关键的ModelView3D还有其他用法，比如ModelView3D.Content下只放个Model3DGroup，Model3DGroup下写个DirectionalLight，、ModelView3D再另外写个Children,下面放一些模型，也就是灯光放在Content里面，模型放在Children里面。例如上面的xmal代码可以改为：
<UserControl
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" mc:Ignorable="d" x:Class="WpfControlLibrary1.UserControl1"
d:DesignWidth="300" d:DesignHeight="200"
> <Grid> <!-- Place a Label control at the top of the view. -->
<Label
HorizontalAlignment="Center"
TextBlock.TextAlignment="Center"
FontSize="20"
Foreground="Red"
Content="Model: Cone"/> <!-- Viewport3D is the rendering surface. -->
<Viewport3D x:Name="myViewport" > <!-- Add a camera. -->
<Viewport3D.Camera>
<PerspectiveCamera
FarPlaneDistance="20"
LookDirection="0,0,1"
UpDirection="0,1,0"
NearPlaneDistance="1"
Position="0,0,-3"
FieldOfView="45" />
</Viewport3D.Camera> <!-- Add models. --> <ModelVisual3D>
<ModelVisual3D.Children>
<ModelVisual3D>
<ModelVisual3D.Content>
<Model3DGroup>
<Model3DGroup.Children>
<GeometryModel3D> <GeometryModel3D.Geometry>
<MeshGeometry3D
Positions="0.293893,-0.5,0.404509 0.475528,-0.5,0.154509 0,0.5,0 0.475528,-0.5,0.154509 0,0.5,0 0,0.5,0 0.475528,-0.5,0.154509 0.475528,-0.5,-0.154509 0,0.5,0 0.475528,-0.5,-0.154509 0,0.5,0 0,0.5,0 0.475528,-0.5,-0.154509
0.293893,-0.5,-0.404509 0,0.5,0 0.293893,-0.5,-0.404509 0,0.5,0 0,0.5,0 0.293893,-0.5,-0.404509 0,-0.5,-0.5 0,0.5,0 0,-0.5,-0.5 0,0.5,0 0,0.5,0 0,-0.5,-0.5 -0.293893,-0.5,-0.404509
0,0.5,0 -0.293893,-0.5,-0.404509 0,0.5,0 0,0.5,0 -0.293893,-0.5,-0.404509 -0.475528,-0.5,-0.154509 0,0.5,0 -0.475528,-0.5,-0.154509 0,0.5,0 0,0.5,0 -0.475528,-0.5,-0.154509 -0.475528,-0.5,0.154509 0,0.5,0
-0.475528,-0.5,0.154509 0,0.5,0 0,0.5,0 -0.475528,-0.5,0.154509 -0.293892,-0.5,0.404509 0,0.5,0 -0.293892,-0.5,0.404509 0,0.5,0 0,0.5,0 -0.293892,-0.5,0.404509 0,-0.5,0.5 0,0.5,0 0,-0.5,0.5
0,0.5,0 0,0.5,0 0,-0.5,0.5 0.293893,-0.5,0.404509 0,0.5,0 0.293893,-0.5,0.404509 0,0.5,0 0,0.5,0"
Normals="0.7236065,0.4472139,0.5257313 0.2763934,0.4472138,0.8506507 0.5308242,0.4294462,0.7306172 0.2763934,0.4472138,0.8506507 0,0.4294458,0.9030925 0.5308242,0.4294462,0.7306172 0.2763934,0.4472138,0.8506507 -0.2763934,0.4472138,0.8506507 0,0.4294458,0.9030925 -0.2763934,0.4472138,0.8506507 -0.5308242,0.4294462,0.7306172 0,0.4294458,0.9030925 -0.2763934,0.4472138,0.8506507
-0.7236065,0.4472139,0.5257313 -0.5308242,0.4294462,0.7306172 -0.7236065,0.4472139,0.5257313 -0.858892,0.429446,0.279071 -0.5308242,0.4294462,0.7306172 -0.7236065,0.4472139,0.5257313 -0.8944269,0.4472139,0 -0.858892,0.429446,0.279071 -0.8944269,0.4472139,0 -0.858892,0.429446,-0.279071 -0.858892,0.429446,0.279071 -0.8944269,0.4472139,0 -0.7236065,0.4472139,-0.5257313
-0.858892,0.429446,-0.279071 -0.7236065,0.4472139,-0.5257313 -0.5308242,0.4294462,-0.7306172 -0.858892,0.429446,-0.279071 -0.7236065,0.4472139,-0.5257313 -0.2763934,0.4472138,-0.8506507 -0.5308242,0.4294462,-0.7306172 -0.2763934,0.4472138,-0.8506507 0,0.4294458,-0.9030925 -0.5308242,0.4294462,-0.7306172 -0.2763934,0.4472138,-0.8506507 0.2763934,0.4472138,-0.8506507 0,0.4294458,-0.9030925
0.2763934,0.4472138,-0.8506507 0.5308249,0.4294459,-0.7306169 0,0.4294458,-0.9030925 0.2763934,0.4472138,-0.8506507 0.7236068,0.4472141,-0.5257306 0.5308249,0.4294459,-0.7306169 0.7236068,0.4472141,-0.5257306 0.8588922,0.4294461,-0.27907 0.5308249,0.4294459,-0.7306169 0.7236068,0.4472141,-0.5257306 0.8944269,0.4472139,0 0.8588922,0.4294461,-0.27907 0.8944269,0.4472139,0
0.858892,0.429446,0.279071 0.8588922,0.4294461,-0.27907 0.8944269,0.4472139,0 0.7236065,0.4472139,0.5257313 0.858892,0.429446,0.279071 0.7236065,0.4472139,0.5257313 0.5308242,0.4294462,0.7306172 0.858892,0.429446,0.279071" TriangleIndices="0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 " />
</GeometryModel3D.Geometry> <GeometryModel3D.Material>
<DiffuseMaterial>
<DiffuseMaterial.Brush>
<SolidColorBrush
Color="Red"
Opacity="1.0"/>
</DiffuseMaterial.Brush>
</DiffuseMaterial>
</GeometryModel3D.Material> </GeometryModel3D> </Model3DGroup.Children>
</Model3DGroup>
</ModelVisual3D.Content>
</ModelVisual3D>
</ModelVisual3D.Children>
//上面是Children，放模型
//这里是Content,里面只放灯光
<ModelVisual3D.Content>
<Model3DGroup >
<Model3DGroup.Children>
<!-- Lights, MeshGeometry3D and DiffuseMaterial objects are added to the ModelVisual3D. -->
<DirectionalLight Color="#FFFFFFFF" Direction="3,-4,5" /> <!-- Define a red cone. -->
</Model3DGroup.Children>
</Model3DGroup> </ModelVisual3D.Content> </ModelVisual3D> </Viewport3D>
</Grid> </UserControl>
以上是我对wpf中最基础的三维的理解，如果错误，欢迎指出。