PerspectiveCamera.FieldOfView 屬性

定義

命名空間:

System.Windows.Media.Media3D

組件:

PresentationCore.dll

取得或設定值，這個值表示相機的水平視野。

public:
 property double FieldOfView { double get(); void set(double value); };

public double FieldOfView { get; set; }

member this.FieldOfView : double with get, set

Public Property FieldOfView As Double

屬性值

Double

相機的水平視野 (以度數為單位)。 預設值為 45。

範例

<DockPanel>
  <Viewport3D Name="myViewport">

    <Viewport3D.Camera>
      <PerspectiveCamera FarPlaneDistance="20" LookDirection="5,-2,-3" UpDirection="0,1,0" NearPlaneDistance="0" Position="-5,2,3" FieldOfView="45" />
    </Viewport3D.Camera>

    <ModelVisual3D x:Name="topModelVisual3D">
      <ModelVisual3D.Children>
        <ModelVisual3D>
          <ModelVisual3D.Content>
            <DirectionalLight Color="#FFFFFFFF" Direction="-3,-4,-5" />
          </ModelVisual3D.Content>
        </ModelVisual3D>

        <ModelVisual3D>
          <ModelVisual3D.Content>
            <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>
          </ModelVisual3D.Content>
        </ModelVisual3D>


      </ModelVisual3D.Children>
    </ModelVisual3D>


    <Viewport3D.Triggers>

      <EventTrigger RoutedEvent="Viewport3D.Loaded">
        <BeginStoryboard>
          <Storyboard>
            <DoubleAnimation 
              Storyboard.TargetName="myAngleRotation"
              Storyboard.TargetProperty="Angle"
              From="0" To="360" Duration="0:0:10"
              RepeatBehavior="Forever" />
          </Storyboard>
        </BeginStoryboard>
      </EventTrigger>
    </Viewport3D.Triggers>


  </Viewport3D>
</DockPanel>

備註

針對 PerspectiveCamera ，「視野」是相機位置與影像平面之間相機投影的水準界限。

相依性屬性資訊

識別碼欄位	FieldOfViewProperty
中繼資料屬性設定為 true	無