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#CV-2x3-102

no support of b-splines within current IFC implementations
number
CV-2x3-102 
based on
IFC2x2, IFC2x3
effects
extended coordination view
date
24. Feb 2006
initiator
ISG meeting in Berlin
summary no support of b-splines within current IFC implementations

 

Description

The b-splines as definined in IFC

  • IfcBezierCurve
  • IfcRationalBezierCurve

are not supported by implementations in any case (not in profiles, nor in 2D Geometry).


[added 2008-02-26] It is an error to export a b-spline (being IfcBezierCurve or IfcRationalBezierCurve) as part of an IFC2x3 coordination view exchange file.

[added 2010-03-01] Reconfirmed for Coordination View Version 2.0, b-splines are excluded from scope