Share Email Facebook Twitter LinkedIn NurbSpline.isRational Property Returns whether the nurb spline is rational or not.Namespace: Autodesk.Revit.DBAssembly: RevitAPI (in RevitAPI.dll) Version: 26.1.0.0 (26.1.0.34) Syntax C# public bool isRational { get; }Property ValueBoolean See AlsoReferenceNurbSpline ClassAutodesk.Revit.DB Namespace