Dion Moult

I came across this again today due to this question: https://community.osarch.org/discussion/1908/relationship-between-reinforcement-bars-and-column I noticed that the example here uses an IfcRelAggregates (which existing vendors also use): https://ifc43-docs.standards.buildingsmart.org/IFC/RELEASE/IFC4x3/HTML/annex_e/building-elements/reinforcing-assembly.html#IFC-SPF-source However the official example...

Yeah it looks suspicious, probably some really mind-bending double negative voodoo going on here. I'd love to test it in detail but unfortunately prohibited attributes have now been removed due...

My understanding of this issue is that after the composition type is removed, it implies that you can nest more than three levels deep of a single spatial element, e.g:...

For geolocation in IFC2X3, the unofficial standard of `EPset_` was created to represent an endorsed by buildingSMART but "not yet in the spec" pset. If `Pset_` and `Qto_` is removed,...

Is anybody aware of any implementation that supports parsing the IfcOwnerHistory? If nobody has implemented it yet, then I encourage deprecating it because the responsibility _should_ lie with the CDE....

The partial model exchange would be implemented by exchanging two files. One being the IFC data, and another being a diff, I think.

One point that wasn't discussed much was the legal requirements. For example, COBie links to people and organisations. If this is legally required, then if IfcOwnerHistory is removed, there should...

Just a bump that the BlenderBIM Add-on now supports owner histories, and this will be used for multi-user partial data exchange to an IFC server, as was the intention of...

A heads up that for these types of openings you should typically not use "openings", you should instead use boolean difference voids.

I don't quite understand this issue - this is phrased as a question, not an issue. Here's a stab at an issue: Improve documentation to clarify that IFC classes are...