# Vector3D.Subtract 方法

## 定義

Vector3D 結構減去 Point3D 結構或 Vector3D 結構。Subtracts a Vector3D structure or a Point3D structure from a Vector3D structure.

## 多載

 從 Point3D 結構減去 Vector3D 結構。Subtracts a Point3D structure from a Vector3D structure. 從 Vector3D 結構減去 Vector3D 結構。Subtracts a Vector3D structure from a Vector3D structure.

## Subtract(Vector3D, Point3D)

Point3D 結構減去 Vector3D 結構。Subtracts a Point3D structure from a Vector3D structure.

``````public:
static System::Windows::Media::Media3D::Point3D Subtract(System::Windows::Media::Media3D::Vector3D vector, System::Windows::Media::Media3D::Point3D point);``````
``public static System.Windows.Media.Media3D.Point3D Subtract (System.Windows.Media.Media3D.Vector3D vector, System.Windows.Media.Media3D.Point3D point);``
``static member Subtract : System.Windows.Media.Media3D.Vector3D * System.Windows.Media.Media3D.Point3D -> System.Windows.Media.Media3D.Point3D``
``Public Shared Function Subtract (vector As Vector3D, point As Point3D) As Point3D``

vector
Vector3D

point
Point3D

#### 傳回

`point` 減去 `vector` 的結果。The result of subtracting `point` from `vector`.

### 範例

``````// Subtracts a Vector3D from a Point3D using the static Subtract method.
// Returns a Point3D.

Point3D point1 = new Point3D(10, 5, 1);
Vector3D vector1 = new Vector3D(20, 30, 40);
Point3D pointResult = new Point3D();

pointResult = Vector3D.Subtract(vector1, point1);
// pointResult is equal to (10, 25, 39)
``````
``````' Subtracts a Vector3D from a Point3D using the static Subtract method.
' Returns a Point3D.

Dim point1 As New Point3D(10, 5, 1)
Dim vector1 As New Vector3D(20, 30, 40)
Dim pointResult As New Point3D()

pointResult = Vector3D.Subtract(vector1, point1)
' pointResult is equal to (10, 25, 39)
``````

## Subtract(Vector3D, Vector3D)

Vector3D 結構減去 Vector3D 結構。Subtracts a Vector3D structure from a Vector3D structure.

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

vector1
Vector3D

vector2
Vector3D

#### 傳回

`vector2` 減去 `vector1` 的結果。The result of subtracting `vector2` from `vector1`.

### 範例

``````// Subtracts a Vector3D from a Vector3D using the static Subtract method.
// Returns a Vector3D.

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

vectorResult = Vector3D.Subtract(vector1, vector2);
// vector Result is equal to (-25, -40, -40)
``````
``````' Subtracts a Vector3D from a Vector3D using the static Subtract method.
' Returns a Vector3D.

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

vectorResult = Vector3D.Subtract(vector1, vector2)
' vector Result is equal to (-25, -40, -40)
``````