Autodesk
Fabrication ductwork generates hundreds of duplicate IfcElementTypes
I'm noticing a lot of fabrication models have a lot of IfcElementType classes with an identical "Tag" (i.e. Revit element ID). Each element type only has a single occurrence. This basically defeats the purpose of having an element type. Is there a way for Revit not to split out these into separate IfcElementTypes?
Note that the duct types do not have geometry, so it is not a problem of representation mapping.
This should be fixed in the newest version. Basically, fabrication elements shared their geometry in a slightly different way and we had to update the export to take advantage of that. I think that solves this problem. If not, give us a sample file that shows the issue.
Great! Where can I find the newest version? The consultants are using the latest 2021 (potentially even 2020) version from Github releases.
Please test on the Revit 2022 or 2023 version. That way I can know if this issue has been resolved, just not in 2020/2021, or if this is another manifestation of the same problem.
I just checked and the model is still on 2020 unfortunately. I'll find some time to test on later versions, but in the meantime is there a fix I can give them within Revit, or does the IFC need to be patched externally?
I patched up the open source for 2022/3, so it's fix_able_ but hasn't been fixed. I don't think there's anything to do in Revit itself.
This issue is also reported in Jira as "REVIT-239239" and is currently in the "Open" status.
