Point3D.Equality(Point3D, Point3D) Operador

  • Referência

Definição

Namespace:
System.Windows.Media.Media3D
Assembly:
PresentationCore.dll

Compara a igualdade de duas estruturas Point3D.

public:
 static bool operator ==(System::Windows::Media::Media3D::Point3D point1, System::Windows::Media::Media3D::Point3D point2);
public static bool operator == (System.Windows.Media.Media3D.Point3D point1, System.Windows.Media.Media3D.Point3D point2);
static member ( = ) : System.Windows.Media.Media3D.Point3D * System.Windows.Media.Media3D.Point3D -> bool
Public Shared Operator == (point1 As Point3D, point2 As Point3D) As Boolean

Parâmetros

point1
Point3D

A primeira estrutura Point3D a ser comparada.

point2
Point3D

A segunda estrutura Point3D a ser comparada.

Retornos

Boolean

true se as coordenadas X, Y e Z do point1 e do point2 forem iguais, caso contrário, false.

Exemplos

O exemplo a seguir mostra como usar o operador de igualdade sobrecarregado para verificar se duas Point3D estruturas são iguais.

// Checks if two Point3Ds are equal using the overloaded equality operator.

Point3D point1 = new Point3D(10, 5, 1);
Point3D point2 = new Point3D(15, 40, 60);
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 Point3Ds are equal using the overloaded equality operator.

Dim point1 As New Point3D(10, 5, 1)
Dim point2 As New Point3D(15, 40, 60)
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 Point3D estruturas serão iguais se os valores de suas Y Xpropriedades e Z as propriedades forem iguais.

Como Double os valores podem perder a precisão quando operações aritméticas são executadas nelas, uma comparação entre duas Point3D instâncias logicamente iguais pode falhar.

Aplica-se a

Confira também