INQ: Custom property set only for Predefined Type

[ksmrst]

Inquiry description

Hi, is there a way to assign custom property sets only to specific predefined types within the .txt file for user defined property sets (I want to have different property sets for IfcCovering.CEILING and IfcCovering.FLOORING) Thanks already!

Revit Version

2023.1.x

IFC for Revit Addon Version

23.2.5

Windows Version

10 22H2

[vitorhpmartins]

@MennoMekes is possible?

[MennoMekes]

@vitorhpmartins and @ksmrst, interesting question. I've tried several things but I could not get it to work (in Revit 2024 and 2025) Only the 4th line works: PropertySet: CustomCeilingSet I/T IfcCoveringType.CEILING PropertySet: CustomCeilingSet I/T IfcCovering.CEILING PropertySet: CustomCeilingSet I/T CEILING PropertySet: CustomCeilingSet I/T IfcCovering

For this particular question I would say it's not that hard to differentiate since ceiling and flooring are seperate Revit categories so you can set the parameters for ceilings and for floors seperate. That being said, I use walls for ceilings as well if I model a cove or insulation under a floor with beams. And this can be very usefull for other entities as well.

So adding the predefined type as a possibility to the export would be usefull. (In my experience I never had the need for this tbh but I see the purpose)

[vitorhpmartins]

@MennoMekes

I tested creating the Pset within the TXT configuration file, and it doesn't work, it doesn't export doing this "differentiation"

[MennoMekes]

No it doesn't. You asked if it was possible, I showed what I tried and it wasn't working. But it would be a nice addition.