Point4D.Equals 方法
定義
重要
部分資訊涉及發行前產品,在發行之前可能會有大幅修改。 Microsoft 對此處提供的資訊,不做任何明確或隱含的瑕疵擔保。
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 Object 的 X、Y、Z 和 W 屬性是否等於這個 Point4D 結構的 X、Y、Z 和 W 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)
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
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
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
傳回
如果 point3D1
和 point3D2
的 X、Y 和 Z 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 、 Y 、 Z 和 W 屬性的值相同,則兩 Point4D 個 X 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。