几何数据相关类
Geometry3D
抽象类, 用于定义物体的几何数据, 可用于计算HitTest和BoundingBox
MeshGeometry3D
Geometry3D的子类, 定义网格的顶点, 三角形顶点, 法线, Texture(纹理)的座标
常用属性: Positions, TriangleIndices, Noramls, TextureCoordinates
模型相关类 (模型=几何数据+变形(位置,旋转,尺寸)+材质)
Model3D
抽象类, 表示一个3D模型, 子类有: Light, GeometryModel3D, Model3DGroup
GeometryModel3D
Model3D的子类, 不仅包含了物体的几何数据Geometry, 还包含了物体的材质Matrial, 变形Transform
<GeometryModel3D Geometry="{StaticResource myTeapot}">
<GeometryModel3D.Material>
<DiffuseMaterial>
<DiffuseMaterial.Brush>
<SolidColorBrush Color="Blue" Opacity="1.0" /></DiffuseMaterial.Brush>
</DiffuseMaterial>
</GeometryModel3D.Material>
<GeometryModel3D.Transform>
<RotateTransform3D>
<RotateTransform3D.Rotation>
<AxisAngleRotation3D x:Name="myAngleRotation" Axis="0,3,0" Angle="1" />
</RotateTransform3D.Rotation>
</RotateTransform3D>
</GeometryModel3D.Transform>
</GeometryModel3D>
----------------------------------------------------------------------
<GeometryModel3D> <GeometryModel3D.Geometry>
<MeshGeometry3D
Positions="-1 -1 0 1 -1 0 -1 1 0 1 1 0"
Normals="0 0 1 0 0 1 0 0 1 0 0 1"
TextureCoordinates="0 1 1 1 0 0 1 0 "
TriangleIndices="0 1 2 1 3 2" />
</GeometryModel3D.Geometry> <GeometryModel3D.Material>
<DiffuseMaterial>
<DiffuseMaterial.Brush>
<SolidColorBrush Color="Cyan" Opacity="0.3"/>
</DiffuseMaterial.Brush>
</DiffuseMaterial>
</GeometryModel3D.Material> <GeometryModel3D.Transform>
<TranslateTransform3D
OffsetX="2" OffsetY="0" OffsetZ="-1" >
</TranslateTransform3D>
</GeometryModel3D.Transform> </GeometryModel3D>
.csharpcode, .csharpcode pre
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color: black;
font-family: consolas, "Courier New", courier, monospace;
background-color: #ffffff;
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.csharpcode pre { margin: 0em; }
.csharpcode .rem { color: #008000; }
.csharpcode .kwrd { color: #0000ff; }
.csharpcode .str { color: #006080; }
.csharpcode .op { color: #0000c0; }
.csharpcode .preproc { color: #cc6633; }
.csharpcode .asp { background-color: #ffff00; }
.csharpcode .html { color: #800000; }
.csharpcode .attr { color: #ff0000; }
.csharpcode .alt
{
background-color: #f4f4f4;
width: 100%;
margin: 0em;
}
.csharpcode .lnum { color: #606060; }
多个GeometryModel3D的实例可以共享一个Geometry3D的实例, 只需设置不通的Material, Transform就可以呈现出不同的物体.
视觉相关类 (包含一个Model3D对象)
Visual3D
Visual的职责是:
- Output display
- Transformations
- Hittesting
- Clipping
- Bounding box calculations
没有的功能包括:
- Event handling
- Layout
- Styles
- Data binding
- Globalization
抽象类, Viewport3D.Children就是Visual3D对象的集合
Visual3D类有一个属性Visual3DModel, 该属性的类型是Model3D
class Visual3D
{
Model3D Visual3DModel { get;set; }
}
ModelVisual3D
Visual3D的子类, 增加了Content, Children等属性
容易混淆的名字 : Visual3D, ModelVisual3D, Model3D, Visual3DModel(属性名)
Viewport3D
负责渲染3D对象, HitTest, 大致由Camera + 一组ModelVisual3D对象(Lights + 多个GeometryModel3D对象)
<Viewport3D ClipToBounds="True" Width="150" Height="150" Canvas.Left="0" Canvas.Top="10">
<!-- Defines the camera used to view the 3D object. -->
<Viewport3D.Camera>
<PerspectiveCamera Position="0,0,2" LookDirection="0,0,-1" FieldOfView="60" />
</Viewport3D.Camera>
<!-- The ModelVisual3D children contain the 3D models -->
<Viewport3D.Children>
<!-- Light -->
<ModelVisual3D>
<ModelVisual3D.Content>
<DirectionalLight Color="#FFFFFF" Direction="-0.612372,-0.5,-0.612372" />
</ModelVisual3D.Content>
</ModelVisual3D>
<!-- Objects -->
<ModelVisual3D>
<ModelVisual3D.Content>
<GeometryModel3D> <!-- The geometry specifes the shape of the 3D plane. In this sample, a flat sheet is created. -->
<GeometryModel3D.Geometry>
<MeshGeometry3D
TriangleIndices="0,1,2 3,4,5 "
Normals="0,0,1 0,0,1 0,0,1 0,0,1 0,0,1 0,0,1 "
TextureCoordinates="0,0 1,0 1,1 1,1 0,1 0,0 "
Positions="-0.5,-0.5,0.5 0.5,-0.5,0.5 0.5,0.5,0.5 0.5,0.5,0.5 -0.5,0.5,0.5 -0.5,-0.5,0.5 " />
</GeometryModel3D.Geometry> <!-- The material specifies the material applied to the 3D object. In this sample a linear gradient
covers the surface of the 3D object.-->
<GeometryModel3D.Material>
<MaterialGroup>
<DiffuseMaterial>
<DiffuseMaterial.Brush>
<LinearGradientBrush StartPoint="0,0.5" EndPoint="1,0.5">
<LinearGradientBrush.GradientStops>
<GradientStop Color="Yellow" Offset="0" />
<GradientStop Color="Red" Offset="0.25" />
<GradientStop Color="Blue" Offset="0.75" />
<GradientStop Color="LimeGreen" Offset="1" />
</LinearGradientBrush.GradientStops>
</LinearGradientBrush>
</DiffuseMaterial.Brush>
</DiffuseMaterial>
</MaterialGroup>
</GeometryModel3D.Material> <!-- Apply a transform to the object. In this sample, a rotation transform is applied, rendering the
3D object rotated. -->
<GeometryModel3D.Transform>
<RotateTransform3D>
<RotateTransform3D.Rotation>
<AxisAngleRotation3D Axis="0,3,0" Angle="40" />
</RotateTransform3D.Rotation>
</RotateTransform3D>
</GeometryModel3D.Transform>
</GeometryModel3D>
</ModelVisual3D.Content>
</ModelVisual3D>
</Viewport3D.Children>
</Viewport3D>
Viewport2DVisual3D
用于把一个2D对象,比如Button, TextBlock放在一个3D物体上
<Viewport2DVisual3D Geometry="{StaticResource plane}">
<Viewport2DVisual3D.Material>
<DiffuseMaterial Viewport2DVisual3D.IsVisualHostMaterial="true" />
</Viewport2DVisual3D.Material>
<Button>3.5!</Button>
</Viewport2DVisual3D>
.csharpcode, .csharpcode pre
{
font-size: small;
color: black;
font-family: consolas, "Courier New", courier, monospace;
background-color: #ffffff;
/*white-space: pre;*/
}
.csharpcode pre { margin: 0em; }
.csharpcode .rem { color: #008000; }
.csharpcode .kwrd { color: #0000ff; }
.csharpcode .str { color: #006080; }
.csharpcode .op { color: #0000c0; }
.csharpcode .preproc { color: #cc6633; }
.csharpcode .asp { background-color: #ffff00; }
.csharpcode .html { color: #800000; }
.csharpcode .attr { color: #ff0000; }
.csharpcode .alt
{
background-color: #f4f4f4;
width: 100%;
margin: 0em;
}
.csharpcode .lnum { color: #606060; }
Viewport3DVisual
把一组3D对象绘制在2D对象上
UIElement3D(支持事件)
UIElement3D
ModelUIElement3D : 和ModelVisual3D类似, 但支持事件
ContainerUIElement3D : 一组ModelUIElement3D的集合, 但不表现自己