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#CV-2x3-161

agreement on applicable geometric items to be used for axis representation.
number
CV-2x3-161
based on
IFC2x3
effects
Coordination view version 2.0
date
September 2010
initiator
official buildingSMART certification 2.0 program
summary agreement on applicable geometric items to be used for axis representation.

 

Description

Only the following geometric representation items are allowed as an 'Axis' shape representation of IfcWall, and IfcWallStandardCase.

  1. linear segment as IfcPolyline with two points, or as IfcTrimmedCurve with BasisCurve being an IfcLine.
  2. circular arc segment as IfcTrimmedCurve with BasisCurve being an IfcCircle.

 

Note:

  • An 'Axis' shape representation is mandatory IfcWallStandardCase and optional for IfcWall.
  • [added 16-07-2011] An 'Axis' shape representation is also optional for IfcBeam, IfcColumn, IfcMember. The requirements shown above do not apply for these elements.