Point4D.Equality(Point4D, Point4D) 运算符

定义

命名空间:

System.Windows.Media.Media3D

程序集:

PresentationCore.dll

比较两个 Point4D 结构是否相等。

public:
 static bool operator ==(System::Windows::Media::Media3D::Point4D point1, System::Windows::Media::Media3D::Point4D point2);

public static bool operator == (System.Windows.Media.Media3D.Point4D point1, System.Windows.Media.Media3D.Point4D point2);

static member ( = ) : System.Windows.Media.Media3D.Point4D * System.Windows.Media.Media3D.Point4D -> bool

Public Shared Operator == (point1 As Point4D, point2 As Point4D) As Boolean

参数

point1

Point4D

要比较的第一个 Point4D 结构。

point2

Point4D

要比较的第二个 Point4D 结构。

返回

Boolean

如果 point4D1 和 point4D2 的 X、Y 和 Z 坐标均相等，则为 true；否则为 false。

示例

以下示例演示如何使用重载相等运算符检查两 Point4D 个结构是否相等。

// Checks if two Point4D structures are equal using the overloaded equality operator.

Point4D point1 = new Point4D(10, 5, 1, 4);
Point4D point2 = new Point4D(15, 40, 60, 75);
Boolean areEqual;

areEqual = (point1 == point2);
// areEqual is False

// Displaying Results
syntaxString = "areEqual = (point1 == point2);";
resultType = "Boolean";
operationString = "Checking if two 3D points are equal";
ShowResults(areEqual.ToString(), syntaxString, resultType, operationString);

' Checks if two Point4D structures are equal using the overloaded equality operator.

Dim point1 As New Point4D(10, 5, 1, 4)
Dim point2 As New Point4D(15, 40, 60, 75)
Dim areEqual As Boolean

areEqual = (point1 = point2)
' areEqual is False

' Displaying Results
syntaxString = "areEqual = (point1 == point2)"
resultType = "Boolean"
operationString = "Checking if two 3D points are equal"
ShowResults(areEqual.ToString(), syntaxString, resultType, operationString)

注解

Point4D如果两个结构的值和属性的值相同，ZW则两XY个结构相等。

由于当对它们执行算术运算时，值 Double 可能会丢失精度，因此在逻辑上相等的两 Point4D 个值之间的比较可能会失败。

另请参阅

• Equals