Позволяет приложениям кисти двухмерный, таким как SolidColorBrush или TileBrush, производить рассеянное освещение модели трехмерный.
Пространство имен: System.Windows.Media.Media3D
Сборка: PresentationCore (в PresentationCore.dll)
XMLNS для XAML: http://schemas.microsoft.com/winfx/2006/xaml/presentation, http://schemas.microsoft.com/netfx/2007/xaml/presentation
Синтаксис
VB
Public NotInheritable Class DiffuseMaterial _
Inherits Material
|
Использование элемента объекта XAML
Примеры
This example shows how to use a DrawingBrush as the Material applied to a трехмерный model.
The following code defines a DrawingGroup as the content of a DrawingBrush. The DrawingBrush is set as the Brush property of the DiffuseMaterial applied to a трехмерный plane.
Note: It is often desirable to define complex objects and values like the drawing below as resources which can be reused and simplify your code.
XAML
<!-- The material specifies the material applied to the 3D object. In this sample a tiled drawing
covers the surface of the 3D object.-->
<GeometryModel3D.Material>
<DiffuseMaterial>
<DiffuseMaterial.Brush>
<DrawingBrush Viewport="0,0,0.1,0.1" TileMode="Tile">
<DrawingBrush.Drawing>
<DrawingGroup>
<DrawingGroup.Children>
<GeometryDrawing Geometry="M0,0.1 L0.1,0 1,0.9, 0.9,1z"
Brush="Gray" />
<GeometryDrawing Geometry="M0.9,0 L1,0.1 0.1,1 0,0.9z"
Brush="Gray" />
<GeometryDrawing Geometry="M0.25,0.25 L0.5,0.125 0.75,0.25 0.5,0.5z"
Brush="#FFFF00" />
<GeometryDrawing Geometry="M0.25,0.75 L0.5,0.875 0.75,0.75 0.5,0.5z"
Brush="Black" />
<GeometryDrawing Geometry="M0.25,0.75 L0.125,0.5 0.25,0.25 0.5,0.5z"
Brush="#FF0000" />
<GeometryDrawing Geometry="M0.75,0.25 L0.875,0.5 0.75,0.75 0.5,0.5z"
Brush="MediumBlue" />
</DrawingGroup.Children>
</DrawingGroup>
</DrawingBrush.Drawing>
</DrawingBrush>
</DiffuseMaterial.Brush>
</DiffuseMaterial>
</GeometryModel3D.Material>
|
The following code shows the entire sample.
XAML
<Page xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" >
<DockPanel>
<Viewbox>
<Canvas Width="321" Height="201">
<!-- The Viewport3D provides a rendering surface for 3-D visual content. -->
<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>
<!-- This ModelVisual3D defines the light cast in the scene. Without light, the 3D
object cannot be seen. Also, the direction of the lights affect shadowing. If desired,
you can create multiple lights with different colors that shine from different directions. -->
<ModelVisual3D>
<ModelVisual3D.Content>
<DirectionalLight Color="#FFFFFF" Direction="-0.612372,-0.5,-0.612372" />
</ModelVisual3D.Content>
</ModelVisual3D>
<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 tiled drawing
covers the surface of the 3D object.-->
<GeometryModel3D.Material>
<DiffuseMaterial>
<DiffuseMaterial.Brush>
<DrawingBrush Viewport="0,0,0.1,0.1" TileMode="Tile">
<DrawingBrush.Drawing>
<DrawingGroup>
<DrawingGroup.Children>
<GeometryDrawing Geometry="M0,0.1 L0.1,0 1,0.9, 0.9,1z"
Brush="Gray" />
<GeometryDrawing Geometry="M0.9,0 L1,0.1 0.1,1 0,0.9z"
Brush="Gray" />
<GeometryDrawing Geometry="M0.25,0.25 L0.5,0.125 0.75,0.25 0.5,0.5z"
Brush="#FFFF00" />
<GeometryDrawing Geometry="M0.25,0.75 L0.5,0.875 0.75,0.75 0.5,0.5z"
Brush="Black" />
<GeometryDrawing Geometry="M0.25,0.75 L0.125,0.5 0.25,0.25 0.5,0.5z"
Brush="#FF0000" />
<GeometryDrawing Geometry="M0.75,0.25 L0.875,0.5 0.75,0.75 0.5,0.5z"
Brush="MediumBlue" />
</DrawingGroup.Children>
</DrawingGroup>
</DrawingBrush.Drawing>
</DrawingBrush>
</DiffuseMaterial.Brush>
</DiffuseMaterial>
</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>
</Canvas>
</Viewbox>
</DockPanel>
</Page>
|
Иерархия наследования
System .Object
System.Windows.Threading .DispatcherObject
System.Windows .DependencyObject
System.Windows .Freezable
System.Windows.Media.Animation .Animatable
System.Windows.Media.Media3D .Material
System.Windows.Media.Media3D .DiffuseMaterial
Потокобезопасность
Любые открытые члены этого типа, объявленные как static ( Shared в Visual Basic), являются потокобезопасными. Потокобезопасность членов экземпляров не гарантируется.
Платформы
Windows 7, Windows Vista, Windows XP с пакетом обновления 2 (SP2), Windows Server 2008, Windows Server 2003
Среды .NET Framework и .NET Compact Framework поддерживают не все версии каждой платформы.
Сведения о версии
.NET Framework
Поддерживается в версиях: 4, 3.5, 3.0
.NET Framework Client Profile
Поддерживается в версии: 4
Источник: http://expert1.ucoz.com/ |