# Vector3D.Multiply 方法

## 多載

 將指定的純量乘以指定的 Vector3D 結構，並傳回結果做為 Vector3D。Multiplies the specified scalar by the specified Vector3D structure and returns the result as a Vector3D. 將指定的 Vector3D 結構乘以指定的純量，並傳回結果做為 Vector3D。Multiplies the specified Vector3D structure by the specified scalar and returns the result as a Vector3D. 使用指定的 Vector3D 結構，轉換指定之 Matrix3D 結構的座標空間。Transforms the coordinate space of the specified Vector3D structure using the specified Matrix3D structure.

## Multiply(Double, Vector3D)

``````public:
static System::Windows::Media::Media3D::Vector3D Multiply(double scalar, System::Windows::Media::Media3D::Vector3D vector);``````
``public static System.Windows.Media.Media3D.Vector3D Multiply (double scalar, System.Windows.Media.Media3D.Vector3D vector);``
``static member Multiply : double * System.Windows.Media.Media3D.Vector3D -> System.Windows.Media.Media3D.Vector3D``
``Public Shared Function Multiply (scalar As Double, vector As Vector3D) As Vector3D``

scalar
Double

vector
Vector3D

#### 傳回

`scalar``vector` 相乘的乘積。The result of multiplying `scalar` and `vector`.

### 範例

``````// Multiplies a Vector3D by a Scalar using the static Multiply method.
// Returns a Vector3D.

Vector3D vector1 = new Vector3D(20, 30, 40);
Double scalar1 = 75;
Vector3D vectorResult = new Vector3D();

vectorResult = Vector3D.Multiply(vector1, scalar1);
// vectorResult is equal to (1500, 2250, 3000)
``````
``````' Multiplies a Vector3D by a Scalar using the static Multiply method.
' Returns a Vector3D.

Dim vector1 As New Vector3D(20, 30, 40)
Dim scalar1 As Double = 75
Dim vectorResult As New Vector3D()

vectorResult = Vector3D.Multiply(vector1, scalar1)
' vectorResult is equal to (1500, 2250, 3000)
``````

## Multiply(Vector3D, Double)

``````public:
static System::Windows::Media::Media3D::Vector3D Multiply(System::Windows::Media::Media3D::Vector3D vector, double scalar);``````
``public static System.Windows.Media.Media3D.Vector3D Multiply (System.Windows.Media.Media3D.Vector3D vector, double scalar);``
``static member Multiply : System.Windows.Media.Media3D.Vector3D * double -> System.Windows.Media.Media3D.Vector3D``
``Public Shared Function Multiply (vector As Vector3D, scalar As Double) As Vector3D``

vector
Vector3D

scalar
Double

#### 傳回

`vector``scalar` 相乘的乘積。The result of multiplying `vector` and `scalar`.

### 範例

``````// Multiplies a Vector3D by a Scalar using the static Multiply method.
// Returns a Vector3D.

Vector3D vector1 = new Vector3D(20, 30, 40);
Double scalar1 = 75;
Vector3D vectorResult = new Vector3D();

vectorResult = Vector3D.Multiply(vector1, scalar1);
// vectorResult is equal to (1500, 2250, 3000)
``````
``````' Multiplies a Vector3D by a Scalar using the static Multiply method.
' Returns a Vector3D.

Dim vector1 As New Vector3D(20, 30, 40)
Dim scalar1 As Double = 75
Dim vectorResult As New Vector3D()

vectorResult = Vector3D.Multiply(vector1, scalar1)
' vectorResult is equal to (1500, 2250, 3000)
``````

## Multiply(Vector3D, Matrix3D)

``````public:
static System::Windows::Media::Media3D::Vector3D Multiply(System::Windows::Media::Media3D::Vector3D vector, System::Windows::Media::Media3D::Matrix3D matrix);``````
``public static System.Windows.Media.Media3D.Vector3D Multiply (System.Windows.Media.Media3D.Vector3D vector, System.Windows.Media.Media3D.Matrix3D matrix);``
``static member Multiply : System.Windows.Media.Media3D.Vector3D * System.Windows.Media.Media3D.Matrix3D -> System.Windows.Media.Media3D.Vector3D``
``Public Shared Function Multiply (vector As Vector3D, matrix As Matrix3D) As Vector3D``

vector
Vector3D

matrix
Matrix3D

### 範例

``````// Multiplies a Vector3D by a Matrix3D using the static Multiply method.
// Returns a Vector3D.

Vector3D vector1 = new Vector3D(20, 30, 40);
Matrix3D matrix1 = new Matrix3D(10, 10, 10, 0, 20, 20, 20, 0, 30, 30, 30, 0, 5, 10, 15, 1);
Vector3D vectorResult = new Vector3D();

vectorResult = Vector3D.Multiply(vector1,matrix1);
// vector Result is equal to (2000, 2000, 2000)
``````
``````' Multiplies a Vector3D by a Matrix3D using the static Multiply method.
' Returns a Vector3D.

Dim vector1 As New Vector3D(20, 30, 40)
Dim matrix1 As New Matrix3D(10, 10, 10, 0, 20, 20, 20, 0, 30, 30, 30, 0, 5, 10, 15, 1)
Dim vectorResult As New Vector3D()

vectorResult = Vector3D.Multiply(vector1,matrix1)
' vector Result is equal to (2000, 2000, 2000)
``````