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Autodesk / revit-ifc

IFC for Revit and Navisworks (2019+)
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IFC4 - IfcRelSpaceBoundary - IfcInternalOrExternalEnum #191

Open CyrilWaechter opened 4 years ago

CyrilWaechter commented 4 years ago

Hello,

I faced an issue concerning IfcInternalOrExternalEnum for IfcRelSpaceBoundary. IFC4 has a more complete IfcInternalOrExternalEnum for RelSpaceBoundaries than IFC 2x3 :

INTERNAL The space boundary faces a physical or virtual element where there is an internal space on the other side.
EXTERNAL The space boundary faces a physical or virtual element where there is an external space on the other side.
EXTERNAL_EARTH The space boundary faces a physical or virtual element where there is earth (or terrain) on the other side.
EXTERNAL_WATER The space boundary faces a physical or virtual element where there is water (water component of terrain) on the other side.
EXTERNAL_FIRE The space boundary faces a physical or virtual element where there is another building on the other side.
NOTDEFINED No information available.

Currently an IfcRelSpaceBoundary is not exported as EXTERNAL_EARTH when it is underground as for gbXML export or when you look at analytical surfaces : image image Best regards.

AngelVelezSosa commented 4 years ago

We haven't yet done any special work for the space boundaries. We will be looking at the list of open issues here in the near future to try to incorporate them into our roadmap.