Revit cannot export multiple enum values for a property enumerated value

[Moult]

[AngelVelezSosa]

Is that an IFC issue or a Revit issue? What's the property in Revit that should go out as multiple enum values?

[Moult]

Revit issue: e.g. I should be able to set status (e.g. in pset_wallcommon) to multiple values.

[HL-code]

Your question seems non-sensical to me.
Its like saying a car cant have two drivers in the drivers seat at the same time.
IFC default psets are somewhat limited.
Just create your own psets and you can do whatever you want.
No limits.
Thats what any organized project do in the Nordics.

You know Moult... i do not work at Autodesk never have never will.
But given your history of publicly critizing Revit into the high extremes you might be struggling a bit in this forum :-)
In any case good luck.

[Moult]

@HL-code it sounds like you don't understand the question. In IFC, enumerated properties can have multiple values. This is nothing to with default psets versus custom psets. This is just basic IFC functionality. Which Revit does not support, hence the bug.

All these bugs are created because it's been faced by a consultant or myself on a live commercial project. It's not me trying to find random issues in Revit. If I really wanted to meaninglessly criticise there's a whole table of contents of IFC features out there which Revit does not, and perhaps never will support.

However basic properties (not IFC complex properties) are probably in scope.

[AngelVelezSosa]

I do want for the record to state that I appreciate that @Moult 's comments here are intended in the spirit of cooperation and to mention issues that are affecting him.
For the specific issue above, perhaps I misunderstand Pset_WallCommon.Status. It seems to be defined as:

P_ENUMERATEDVALUE / IfcLabel / PEnum_ElementStatus*

Doesn't that imply one status?

[louistrue]

`IfcPropertyEnumeratedValue

Definition from buildingSMART: A property with an enumerated value (IfcPropertyEnumeratedValue) defines a property object which has a value assigned which is chosen from an enumeration. It defines a property - value combination for which the property name, the value with measure type (and optional the unit) are given.

NOTE: Multiple choices from the property enumeration are supported.`

from https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/ifcpropertyresource/lexical/ifcpropertyenumeratedvalue.htm#:~:text=Definition%20from%20buildingSMART%3A%20A%20property,optional%20the%20unit)%20are%20given.

[AngelVelezSosa]

The devil is in the note. Thanks, I'll create an item for that.

[Moult]

I guess it's not just the note, it's also the plural name "EnumerationValues" and the data type of "LIST [1:?] OF IfcValue".

I'm happy @AngelVelezSosa appreciates these reports, it is a lot of work to test, verify, and source-dive. About half of these reports on behalf of others too, which takes time to interpret and distill down into the exact cause.