Vector.Equality(Vector, Vector) Operator

Reference

Definition

Namespace:: System.Windows

Assembly:: WindowsBase.dll

Important

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Compares two vectors for equality.

public:
 static bool operator ==(System::Windows::Vector vector1, System::Windows::Vector vector2);

public static bool operator == (System.Windows.Vector vector1, System.Windows.Vector vector2);

static member ( = ) : System.Windows.Vector * System.Windows.Vector -> bool

Public Shared Operator == (vector1 As Vector, vector2 As Vector) As Boolean

Parameters

vector1: Vector

The first vector to compare.

vector2: Vector

The second vector to compare.

Returns

Boolean

true if the X and Y components of vector1 and vector2 are equal; otherwise, false.

Examples

The following example shows how to use this operator (==) to check whether two Vector structures are equal.

private Boolean overloadedEqualityOperatorExample()
{
    Vector vector1 = new Vector(20, 30);
    Vector vector2 = new Vector(45, 70);

    // If the two vectors are equal, areEqual is True,
    // otherwise it is False. In this example it is False.
    Boolean areEqual = (vector1 == vector2);

    return areEqual;
}

Private Function overloadedEqualityOperatorExample() As Boolean
    Dim vector1 As New Vector(20, 30)
    Dim vector2 As New Vector(45, 70)

    ' If the two vectors are equal, areEqual is True,
    ' otherwise it is False. In this example it is False.
    Dim areEqual As Boolean = (vector1 = vector2)

    Return areEqual

End Function

Remarks

A vector's X and Y properties are described using Double values. Because the value of a Double can lose precision when arithmetic operations are performed on it, a comparison between two Vector structures that are logically equal might fail.

Applies to

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