PerspectiveCamera 构造函数

定义

命名空间:

System.Windows.Media.Media3D

程序集:

PresentationCore.dll

初始化 PerspectiveCamera 类的新实例。

重载

PerspectiveCamera()	初始化 PerspectiveCamera 类的新实例。
PerspectiveCamera(Point3D, Vector3D, Vector3D, Double)	使用指定的位置、方向和视角初始化 PerspectiveCamera 类的新实例。

PerspectiveCamera()

初始化 PerspectiveCamera 类的新实例。

public:
 PerspectiveCamera();

public PerspectiveCamera ();

Public Sub New ()

示例

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

PerspectiveCamera(Point3D, Vector3D, Vector3D, Double)

使用指定的位置、方向和视角初始化 PerspectiveCamera 类的新实例。

public:
 PerspectiveCamera(System::Windows::Media::Media3D::Point3D position, System::Windows::Media::Media3D::Vector3D lookDirection, System::Windows::Media::Media3D::Vector3D upDirection, double fieldOfView);

public PerspectiveCamera (System.Windows.Media.Media3D.Point3D position, System.Windows.Media.Media3D.Vector3D lookDirection, System.Windows.Media.Media3D.Vector3D upDirection, double fieldOfView);

new System.Windows.Media.Media3D.PerspectiveCamera : System.Windows.Media.Media3D.Point3D * System.Windows.Media.Media3D.Vector3D * System.Windows.Media.Media3D.Vector3D * double -> System.Windows.Media.Media3D.PerspectiveCamera

Public Sub New (position As Point3D, lookDirection As Vector3D, upDirection As Vector3D, fieldOfView As Double)

参数

position

Point3D

用于指定摄像机位置的 Point3D。

lookDirection

Vector3D

用于指定摄像机投影方向的 Vector3D。

upDirection

Vector3D

根据旁观者视角指定向上方向的 Vector3D。

fieldOfView

Double

摄影机投影角度的宽度，以度为单位指定该值。

示例

//Toggle between camera projections.
public void ToggleCamera(object sender, EventArgs e)
{
    if ((bool)CameraCheck.IsChecked == true)
    {
        OrthographicCamera myOCamera = new OrthographicCamera(new Point3D(0, 0, -3), new Vector3D(0, 0, 1), new Vector3D(0, 1, 0), 3);
        myViewport.Camera = myOCamera;
    }
    if ((bool)CameraCheck.IsChecked != true)
    {
        PerspectiveCamera myPCamera = new PerspectiveCamera(new Point3D(0, 0, -3), new Vector3D(0, 0, 1), new Vector3D(0, 1, 0), 50);
        myViewport.Camera = myPCamera;
    }
}

'Toggle between camera projections.
Public Sub ToggleCamera(ByVal sender As Object, ByVal e As EventArgs)
    If CBool(CameraCheck.IsChecked) = True Then
        Dim myOCamera As New OrthographicCamera(New Point3D(0, 0, -3), New Vector3D(0, 0, 1), New Vector3D(0, 1, 0), 3)
        myViewport.Camera = myOCamera
    End If
    If CBool(CameraCheck.IsChecked) <> True Then
        Dim myPCamera As New PerspectiveCamera(New Point3D(0, 0, -3), New Vector3D(0, 0, 1), New Vector3D(0, 1, 0), 50)
        myViewport.Camera = myPCamera
    End If
End Sub