共用方式為


Point4D.Equals 方法

定義

比較兩個 Point4D 結構是否相等。

多載

Equals(Object)

判斷指定的 Object 是否為 Point4D 結構,以及指定 ObjectXYZW 屬性是否等於這個 Point4D 結構的 XYZW 屬性。

Equals(Point4D)

比較兩個 Point4D 結構是否相等。

Equals(Point4D, Point4D)

比較兩個 Point4D 結構是否相等。

Equals(Object)

判斷指定的 Object 是否為 Point4D 結構,以及指定 ObjectXYZW 屬性是否等於這個 Point4D 結構的 XYZW 屬性。

public:
 override bool Equals(System::Object ^ o);
public override bool Equals (object o);
override this.Equals : obj -> bool
Public Overrides Function Equals (o As Object) As Boolean

參數

o
Object

要比較的物件。

傳回

Boolean

如果執行個體相等,則為 true,否則為 false

如果 o (所傳遞的 Object) 是 Point4D 結構,而且與這個 Point4D 結構相同則為 true,否則為 false

範例

下列範例示範如何檢查 和 Point4D 結構是否 Object 相等。

// Compares an Object and a Point4D for equality using the non-static Equals method.

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

areEqual = point1.Equals(point2);
// areEqual is False.  point2 is a Point4D structure, but it is not equal to point1.	

// Displaying Results
syntaxString = "areEqual = point1.Equals(point2);";
resultType = "Boolean";
operationString = "Checking if two 3D points are equal";
ShowResults(areEqual.ToString(), syntaxString, resultType, operationString);
' Compares an Object and a Point4D for equality using the non-static Equals method.

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

areEqual = point1.Equals(point2)
' areEqual is False.  point2 is a Point4D structure, but it is not equal to point1.	


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

備註

如果 o (傳遞的物件) 不是 Point4D 結構,這個方法會傳 false 回 。

Double由於在算數運算上執行算數運算時,值可能會失去有效位數,因此邏輯上相等的兩 Point4D 個值之間的比較可能會失敗。

另請參閱

適用於

Equals(Point4D)

比較兩個 Point4D 結構是否相等。

public:
 bool Equals(System::Windows::Media::Media3D::Point4D value);
public bool Equals (System.Windows.Media.Media3D.Point4D value);
override this.Equals : System.Windows.Media.Media3D.Point4D -> bool
Public Function Equals (value As Point4D) As Boolean

參數

value
Point4D

要與這個執行個體比較的 Point4D 執行個體。

傳回

Boolean

如果執行個體相等,則為 true,否則為 false

備註

Double由於在算數運算上執行算數運算時,值可能會失去有效位數,因此邏輯上相等的兩 Point4D 個值之間的比較可能會失敗。

另請參閱

適用於

Equals(Point4D, Point4D)

比較兩個 Point4D 結構是否相等。

public:
 static bool Equals(System::Windows::Media::Media3D::Point4D point1, System::Windows::Media::Media3D::Point4D point2);
public static bool Equals (System.Windows.Media.Media3D.Point4D point1, System.Windows.Media.Media3D.Point4D point2);
static member Equals : System.Windows.Media.Media3D.Point4D * System.Windows.Media.Media3D.Point4D -> bool
Public Shared Function Equals (point1 As Point4D, point2 As Point4D) As Boolean

參數

point1
Point4D

要比較的第一個 Point4D 結構。

point2
Point4D

要比較的第二個 Point4D 結構。

傳回

Boolean

如果 point3D1point3D2XYZ 元件都相等則為 true,否則為 false

範例

下列範例示範如何檢查兩 Point4D 個結構是否相等。

// Checks if two Point4D structures are equal using the static Equals method.
 
// point1's x,y,z,w properties set when the structure is created  
Point4D point1 = new Point4D(10, 5, 1, 4);

Point4D point2 = new Point4D();
Boolean areEqual;

// settting point2's x,y,z,w properties   
point2.X = 15;
point2.Y = 40;
point2.Z = 60;
point2.W = 75;

areEqual = Point4D.Equals(point1, point2);
// areEqual is False	

//Displaying Results
syntaxString = "areEqual = Point4D.Equals(point1, point2);";
resultType = "Boolean";
operationString = "Checking if 3D two points are equal";
ShowResults(areEqual.ToString(), syntaxString, resultType, operationString);
' Checks if two Point4D structures are equal using the static Equals method.

' point1's x,y,z,w properties set when the structure is created  
Dim point1 As New Point4D(10, 5, 1, 4)

Dim point2 As New Point4D()
Dim areEqual As Boolean

' settting point2's x,y,z,w properties   
point2.X = 15
point2.Y = 40
point2.Z = 60
point2.W = 75

areEqual = Point4D.Equals(point1, point2)
' areEqual is False	

'Displaying Results
syntaxString = "areEqual = Point4D.Equals(point1, point2)"
resultType = "Boolean"
operationString = "Checking if 3D two points are equal"
ShowResults(areEqual.ToString(), syntaxString, resultType, operationString)

備註

如果 、 YZW 屬性的值相同,則兩 Point4DX 結構相等。

由於在算數運算上執行算數運算時,值可能會失去精確度,因此 Double 邏輯上相等的兩 Point4D 個實例之間的比較可能會失敗。

另請參閱

適用於