Point4D.Equals Method (Point4D, Point4D)

Compares two Point4D structures for equality.

Namespace:  System.Windows.Media.Media3D
Assembly:  PresentationCore (in PresentationCore.dll)

public static bool Equals(
	Point4D point1,
	Point4D point2


Type: System.Windows.Media.Media3D.Point4D

The first Point4D structure to compare.

Type: System.Windows.Media.Media3D.Point4D

The second Point4D structure to compare.

Return Value

Type: System.Boolean
true if the X, Y, and Z components of point3D1 and point3D2 are equal; false otherwise.

Two Point4D structures are equal if the values of their X, Y, Z, and W properties are the same.

Because Double values can lose precision when arithmetic operations are performed on them, a comparison between two Point4D instances that are logically equal might fail.

The following example shows how to check whether two Point4D structures are equal.

// Checks if two Point4D structures are equal using the static Equals method. 

// point1's x,y,z,w properties set when the structure is created  
Point4D point1 = new Point4D(10, 5, 1, 4);

Point4D point2 = new Point4D();
Boolean areEqual;

// settting point2's x,y,z,w properties   
point2.X = 15;
point2.Y = 40;
point2.Z = 60;
point2.W = 75;

areEqual = Point4D.Equals(point1, point2);
// areEqual is False	 

//Displaying Results
syntaxString = "areEqual = Point4D.Equals(point1, point2);";
resultType = "Boolean";
operationString = "Checking if 3D two points are equal";
ShowResults(areEqual.ToString(), syntaxString, resultType, operationString);

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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