A nurb spline.

Namespace: Autodesk.Revit.DB
Assembly: RevitAPI (in RevitAPI.dll) Version: 24.0.0.0 (24.0.0.0)

Syntax

C#
`public class NurbSpline : Curve`

Visual Basic
`Public Class NurbSpline _ Inherits Curve`

Visual C++
`public ref class NurbSpline : public Curve`

Remarks

The nurb spline lies in the plane defined by control point, weight,knots,degree.

SystemObject
  Autodesk.Revit.DBAPIObject
    Autodesk.Revit.DBGeometryObject
      Autodesk.Revit.DBCurve
        Autodesk.Revit.DBNurbSpline