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Instrukcje: stosowanie rysunku do modelu 3D

  • Artykuł

W tym przykładzie pokazano, jak używać DrawingBrush wartości jako zastosowanej Material do modelu 3D.

Poniższy kod definiuje DrawingGroup element jako zawartość obiektu DrawingBrush. Właściwość DrawingBrush jest ustawiana jako Brush właściwość DiffuseMaterial zastosowana do płaszczyzny 3D.

Uwaga

Często pożądane jest zdefiniowanie złożonych obiektów i wartości, takich jak rysunek poniżej, jako zasobów, które mogą być używane ponownie i upraszczać kod. Aby uzyskać więcej informacji, zobacz Zasoby 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>

Przykład

Poniższy kod przedstawia cały przykład.

<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 specifies 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>

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