Returns a normal unit vector at the given index.

Namespace: Autodesk.Revit.DB
Assembly: RevitAPI (in RevitAPI.dll) Version: 23.0.0.0 (23.1.0.0)
Since:  2021

Syntax

C#
public XYZ GetNormal(
	int idx
)
Visual Basic
Public Function GetNormal ( _
	idx As Integer _
) As XYZ
Visual C++
public:
XYZ^ GetNormal(
	int idx
)

Parameters

idx
Type: System..::..Int32
A zero-based index. It must be consistent with the DistributionOfNormals.

Return Value

XYZ value representing a normal unit vector.

Exceptions

ExceptionCondition
Autodesk.Revit.Exceptions..::..ArgumentException The given value is not a valid index of a normal of the mesh. A valid value is not negative and is smaller than the number of normals in the mesh.

See Also