Vector.Equality(Vector, Vector) Operator

Reference

Definition

Namespace:: System.Windows

Assembly:: WindowsBase.dll

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

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

Sdílet prostřednictvím