語言

Vector3D.AngleBetween(Vector3D, Vector3D) 方法

定義

命名空間:
System.Windows.Media.Media3D
組件:
PresentationCore.dll

取得將第一個指定 Vector3D 結構旋轉到第二個指定 Vector3D 結構所需的角度。

public:
 static double AngleBetween(System::Windows::Media::Media3D::Vector3D vector1, System::Windows::Media::Media3D::Vector3D vector2);
public static double AngleBetween(System.Windows.Media.Media3D.Vector3D vector1, System.Windows.Media.Media3D.Vector3D vector2);
static member AngleBetween : System.Windows.Media.Media3D.Vector3D * System.Windows.Media.Media3D.Vector3D -> double
Public Shared Function AngleBetween (vector1 As Vector3D, vector2 As Vector3D) As Double

參數

vector1
Vector3D

這是第一個 Vector3D 要評估的結構。

vector2
Vector3D

第二個 Vector3D 需要評估的結構。

傳回

Double

旋轉到的vector1角度（度數）為單位vector2。

範例

以下範例說明如何取得兩個 Vector3D 結構間的角度。

                    // Calculates the angle between two Vector3Ds using the static AngleBetween method. 
                    // Returns a Double.

                    Vector3D vector1 = new Vector3D(20, 30, 40);
                    Vector3D vector2 = new Vector3D(45, 70, 80);
                    Double angleBetween;

                    angleBetween = Vector3D.AngleBetween(vector1, vector2 );
                    // angleBetween is approximately equal to 4.15129

' Calculates the angle between two Vector3Ds using the static AngleBetween method. 
' Returns a Double.

Dim vector1 As New Vector3D(20, 30, 40)
Dim vector2 As New Vector3D(45, 70, 80)
Dim angleBetween As Double

angleBetween = Vector3D.AngleBetween(vector1, vector2)
' angleBetween is approximately equal to 4.15129

備註

帶符號的角度不會延伸到三維空間，因此回傳角度介於0到180度之間。

適用於