Point.Equality(Point, Point) Operador

Definição

Compara a igualdade de duas estruturas Point.Compares two Point structures for equality.

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

Parâmetros

point1
Point

A primeira estrutura Point a ser comparada.The first Point structure to compare.

point2
Point

A segunda estrutura Point a ser comparada.The second Point structure to compare.

Retornos

true se as coordenadas X e Y de point1 e point2 forem iguais; caso contrário, false.true if both the X and Y coordinates of point1 and point2 are equal; otherwise, false.

Exemplos

O exemplo a seguir mostra como verificar se duas Point estruturas são iguais usando o operador sobrecarregado (= =).The following example shows how to check if two Point structures are equal using the overloaded (==) operator.

private Boolean overloadedEqualityOperatorExample()
{
    Point point1 = new Point(10, 5);
    Point point2 = new Point(15, 40);

    // Check if two Points are equal using the overloaded equality operator.
    // areEqual is False.
    Boolean areEqual = (point1 == point2);

    return areEqual;

}
Private Function overloadedEqualityOperatorExample() As Boolean
    Dim point1 As New Point(10, 5)
    Dim point2 As New Point(15, 40)

    ' Check if two Points are equal using the overloaded equality operator.
    ' areEqual is False.
    Dim areEqual As Boolean = (point1 = point2)

    Return areEqual

End Function

Comentários

As coordenadas de um ponto são descritas usando Double valores.A point's coordinates are described using Double values. Como o valor de Double pode perder a precisão quando operações aritméticas são executadas nelas, uma comparação Point entre dois valores que são logicamente iguais pode falhar.Because the value of Double can lose precision when arithmetic operations are performed on them, a comparison between two Point values that are logically equal might fail.

Aplica-se a

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