Andy Ward

Assuming you mean the Project units? Have you seen how it's implemented here?: https://github.com/xBimTeam/XbimEssentials/blob/4ed33f7a0427ea91bc7825810c381779ecf5053c/Xbim.Ifc4/Kernel/IfcProjectPartial.cs#L48 If you want Meters rather than Millimeters, you presumably just want to remove the `IfcSIPrefix.MILLI` prefix...

Can you provide details of the IFC file and the code you're using?

Can you share what you expect? What 'quantity data' did you want to see. (There's lots of ways of conveying quantities in a model)

How are you extracting the JSON? Are you using COBieLiteUK Exchanger or something else? If you are, it should be outputting quantities. i.e. this code https://github.com/xBimTeam/XbimExchange/blob/261d31c95c736158a7289a3c9e0e5762ad464695/Xbim.Exchanger/IfcToCOBieLiteUK/XbimAttributedObject.cs#L452 If it's not can...

Can you provide a model? Are you expecting the Facility to have a volume, or are you looking for it on a Space?

No, because Wexbim is only a **geometry** format. It contains no meaningful semantic data, only an encoded form of the following data: the entity type, the entity label, a mesh...

Simon, From what I can tell CobieLite defines its schema across 2 separate XSDs: core.xsd and cobielite.xsd, with the later referencing items in the former. In your examples above, I...

Might need to loop in @CBenghi here as he touched this last (6 years ago!) - I'm not sure how that XmlSerialisationCode was generated - it doesn't look like standard...

Hi Claudio It was a long while ago so appreciate it may be distant memory but it was this commit https://github.com/xBimTeam/XbimExchange/commit/548301f096da56ad1f3649a69963961f2b643c18 having looked at the full history it looks like...

I should create a Pull Request, which you can do from Visual Studio. But to be fair we can reproduce from your `CanReadSerialisedXmlWithCobieLiteNamespace` test above