Point3D.Subtract 方法

定義

命名空間:

System.Windows.Media.Media3D

組件:

PresentationCore.dll

從 Point3D 結構減去 Vector3D 結構或 Point3D 結構。

多載

Subtract(Point3D, Point3D)	從 Point3D 結構減去 Point3D 結構，並傳回 Vector3D 結構的結果。
Subtract(Point3D, Vector3D)	從 Vector3D 結構減去 Point3D 結構，並傳回 Point3D 結構的結果。

Subtract(Point3D, Point3D)

從 Point3D 結構減去 Point3D 結構，並傳回 Vector3D 結構的結果。

public:
 static System::Windows::Media::Media3D::Vector3D Subtract(System::Windows::Media::Media3D::Point3D point1, System::Windows::Media::Media3D::Point3D point2);

public static System.Windows.Media.Media3D.Vector3D Subtract (System.Windows.Media.Media3D.Point3D point1, System.Windows.Media.Media3D.Point3D point2);

static member Subtract : System.Windows.Media.Media3D.Point3D * System.Windows.Media.Media3D.Point3D -> System.Windows.Media.Media3D.Vector3D

Public Shared Function Subtract (point1 As Point3D, point2 As Point3D) As Vector3D

參數

point1

Point3D

要減去其中內容的 Point3D 結構。

point2

Point3D

要從 point1 中減去的 Point3D 結構。

傳回

Vector3D

Vector3D 結構，這個結構表示 point1 與 point2 之間的差。

範例

下列範例示範如何從 Point3D 結構減去 Point3D 結構。

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

Point3D point1 = new Point3D(10, 5, 1);
Point3D point2 = new Point3D(15, 40, 60);
Vector3D vectorResult = new Vector3D();

vectorResult = Point3D.Subtract(point1, point2);
// vectorResult is equal to (-5, -35, -59)

// Displaying Results
syntaxString = "vectorResult = Point3D.Subtract(point1, point2);";
resultType = "Vector3D";
operationString = "Subtracting a Point3D from a Point3D";
ShowResults(vectorResult.ToString(), syntaxString, resultType, operationString);

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

Dim point1 As New Point3D(10, 5, 1)
Dim point2 As New Point3D(15, 40, 60)
Dim vectorResult As New Vector3D()

vectorResult = Point3D.Subtract(point1, point2)
' vectorResult is equal to (-5, -35, -59)

' Displaying Results
syntaxString = "vectorResult = Point3D.Subtract(point1, point2)"
resultType = "Vector3D"
operationString = "Subtracting a Point3D from a Point3D"
ShowResults(vectorResult.ToString(), syntaxString, resultType, operationString)

另請參閱

• Subtract

Subtract(Point3D, Vector3D)

從 Vector3D 結構減去 Point3D 結構，並傳回 Point3D 結構的結果。

public:
 static System::Windows::Media::Media3D::Point3D Subtract(System::Windows::Media::Media3D::Point3D point, System::Windows::Media::Media3D::Vector3D vector);

public static System.Windows.Media.Media3D.Point3D Subtract (System.Windows.Media.Media3D.Point3D point, System.Windows.Media.Media3D.Vector3D vector);

static member Subtract : System.Windows.Media.Media3D.Point3D * System.Windows.Media.Media3D.Vector3D -> System.Windows.Media.Media3D.Point3D

Public Shared Function Subtract (point As Point3D, vector As Vector3D) As Point3D

參數

point

Point3D

要從中減去 vector 的 Point3D 結構。

vector

Vector3D

要從 point 中減去的 Vector3D 結構。

傳回

Point3D

point 與 vector 之間的差數。

範例

下列範例示範如何從 Point3D 結構減去 Vector3D 結構。

// 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 = Point3D.Subtract(point1, vector1);
// pointResult is equal to (-10, -25, -39)

// Displaying Results
syntaxString = "pointResult = Point3D.Subtract(point1, vector1);";
resultType = "Point3D";
operationString = "Subtracting a Vector3D from a Point3D";
ShowResults(pointResult.ToString(), syntaxString, resultType, operationString);

' 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 = Point3D.Subtract(point1, vector1)
' pointResult is equal to (-10, -25, -39)

' Displaying Results
syntaxString = "pointResult = Point3D.Subtract(point1, vector1)"
resultType = "Point3D"
operationString = "Subtracting a Vector3D from a Point3D"
ShowResults(pointResult.ToString(), syntaxString, resultType, operationString)

另請參閱

• Subtract