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Point3D.Equality(Point3D, Point3D) Operatore

Definizione

Confronta due strutture Point3D per determinare se sono uguali.

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

Parametri

point1
Point3D

Prima struttura Point3D da confrontare.

point2
Point3D

Seconda struttura Point3D da confrontare.

Restituisce

Boolean

true se le coordinate X, Y e Z di point1 e point2 sono uguali, altrimenti false.

Esempio

Nell'esempio seguente viene illustrato come usare l'operatore di uguaglianza di overload per verificare se due Point3D strutture sono uguali.

// 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)

Commenti

Due Point3D strutture sono uguali se i valori delle proprietà X, Y e Z sono uguali.

Poiché Double i valori possono perdere precisione quando vengono eseguite operazioni aritmetiche su di esse, un confronto tra due Point3D istanze che sono logicamente uguali potrebbe non riuscire.

Si applica a

Vedi anche