Point3D.Subtraction 運算子

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

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

Subtraction(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 operator -(System::Windows::Media::Media3D::Point3D point1, System::Windows::Media::Media3D::Point3D point2);

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

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

Public Shared Operator - (point1 As Point3D, point2 As Point3D) As Vector3D

參數

point1

Point3D

要執行減法的 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

下列範例示範如何使用多載減法運算子，從 Point3D 結構中減去 Point3D 結構。

// Subtracts a Point3D from a Point3D using the overloaded - operator.
// Returns a Vector3D.

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

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

// Displaying Results
syntaxString = " vectorResult = 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 overloaded - operator.
' 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 = point1 - point2
' vectorResult is equal to (-5, -35, -59)

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

另請參閱

• Subtract

Subtraction(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 operator -(System::Windows::Media::Media3D::Point3D point, System::Windows::Media::Media3D::Vector3D vector);

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

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

Public Shared Operator - (point As Point3D, vector As Vector3D) As Point3D

參數

point

Point3D

要從中減去向量的 Point3D 結構。

vector

Vector3D

要從點減去的 Vector3D 結構。

傳回

Point3D

已變更的 Point3D 結構，這個結構是從 vector 減去 point 的結果。

範例

下列範例示範如何使用多載減法運算子，從 Point3D 結構中減去 Vector3D 結構。

// Subtracts a Vector3D from a Point3D using the overloaded - operator.
// Returns a Point3D.

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

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

// Displaying Results
syntaxString = "pointResult = 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 overloaded - operator.
' 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 = point1 - vector1
' pointResult is equal to (-10, -25, -39) 

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

另請參閱

• Subtract