Point.Subtraction 运算符

定义

命名空间:

System.Windows

程序集:

WindowsBase.dll

从指定的 Vector 中减去指定的 Point 或 Point。

重载

Subtraction(Point, Point)	从指定的 Point 中减去另一个指定的 Point 并将差作为 Vector 返回。
Subtraction(Point, Vector)	从指定的 Vector 减去指定的 Point 并返回所得的 Point。

Subtraction(Point, Point)

从指定的 Point 中减去另一个指定的 Point 并将差作为 Vector 返回。

public:
 static System::Windows::Vector operator -(System::Windows::Point point1, System::Windows::Point point2);

public static System.Windows.Vector operator - (System.Windows.Point point1, System.Windows.Point point2);

static member ( - ) : System.Windows.Point * System.Windows.Point -> System.Windows.Vector

Public Shared Operator - (point1 As Point, point2 As Point) As Vector

参数

point1

Point

要从中减去 point2 的点。

point2

Point

要从 point1 中减去的点。

返回

Vector

point1 和 point2 之间的差值。

示例

以下示例演示如何从另一个Point运算符中减去 a Point 并返回Vector使用重载的 (-) 运算符。

      private Vector overloadedSubtractionOperatorExample2()
      {

          Point point1 = new Point(10, 5);
          Point point2 = new Point(15, 40);

          // Subtracts a Point from another Point using the overloaded subtraction (-)
          // operator and returns the difference as a Vector.
          // vectorResult is equal to (-5, -35).
          Vector vectorResult = point1 - point2;

          return vectorResult;
      }

Private Function overloadedSubtractionOperatorExample2() As Vector

    Dim point1 As New Point(10, 5)
    Dim point2 As New Point(15, 40)

    ' Subtracts a Point from another Point using the overloaded subtraction (-)
    ' operator and returns the difference as a Vector.
    ' vectorResult is equal to (-5, -35).
    Dim vectorResult As Vector = point1 - point2

    Return vectorResult

End Function

另请参阅

• Subtract(Point, Point)

Subtraction(Point, Vector)

从指定的 Vector 减去指定的 Point 并返回所得的 Point。

public:
 static System::Windows::Point operator -(System::Windows::Point point, System::Windows::Vector vector);

public static System.Windows.Point operator - (System.Windows.Point point, System.Windows.Vector vector);

static member ( - ) : System.Windows.Point * System.Windows.Vector -> System.Windows.Point

Public Shared Operator - (point As Point, vector As Vector) As Point

参数

point

Point

要从中减去 vector 的点。

vector

Vector

要从 point1 中减去的向量。

返回

Point

point 和 vector 之间的差值。

示例

以下示例演示如何从使用重载的 (-) 运算符中减去 a Vector Point 。

private Point overloadedSubtractionOperatorExample1()
{

    Point point1 = new Point(10, 5);
    Vector vector1 = new Vector(20, 30);

    // Subtracts a Vector from a Point using the overloaded subtraction (-) operator.
    // pointResult is equal to (-10, -25)
    Point pointResult = point1 - vector1;
    
    return pointResult;
}

Private Function overloadedSubtractionOperatorExample1() As Point

    Dim point1 As New Point(10, 5)
    Dim vector1 As New Vector(20, 30)

    ' Subtracts a Vector from a Point using the overloaded subtraction (-) operator.
    ' pointResult is equal to (-10, -25)
    Dim pointResult As Point = point1 - vector1

    Return pointResult

End Function

另请参阅

• Subtract(Point, Vector)