Returns a normal vector at the given index

Namespace: Autodesk.Revit.DB
Assembly: RevitAPI (in RevitAPI.dll) Version: 2015.0.0.0 (2015.0.0.0)
Since: 2014

Syntax

C#
`public XYZ GetNormal( int idx )`

Visual Basic
`Public Function GetNormal ( _ idx As Integer _ ) As XYZ`

Visual C++
`public: XYZ^ GetNormal( int idx )`

XYZ value representing a normal vector

Exceptions

Exception	Condition
Autodesk.Revit.Exceptions ArgumentException	The given value is not a valid index of a normal of the polymesh. A valid valure is not negative and is smaller than the number of normals in the polymesh.