Point4D.Equality(Point4D, Point4D) Operador

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

Parâmetros

Retornos

true se as Xcoordenadas , Ye Z de point4D1 e point4D2 são iguais; caso contrário, false.

Exemplos

O exemplo a seguir mostra como usar o operador de igualdade sobrecarregado para verificar se duas Point4D estruturas são iguais.

// 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)

Comentários

Duas Point4D estruturas serão iguais se os valores de suas Xpropriedades e YZW propriedades forem iguais.

Como um Double valor pode perder a precisão quando operações aritméticas são executadas nelas, uma comparação entre dois Point4D valores que são logicamente iguais pode falhar.

Confira também

• Equals