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Point4D. Equals Method (Point4D, Point4D)
.NET Framework (current version)

Compares two Point4D structures for equality.

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

public static bool Equals(
Point4D point1,
Point4D point2
)
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 Available since 3.0

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