OSArch Community

Aggregate assembly

1. S by sahrul on 1 Nov 2023, edited 14 Nov 2023 #

   how to make aggregate assembly..?

2. C by Coen on 1 Nov 2023 #

   @theoryshaw Has great dropbox clips for this.

3. T by theoryshaw on 1 Nov 2023 # +1 votes

   Now where did i put those? ;)

   easier making a new one...

   shows how to make a 'duplicate aggregate' as well.

4. T by theoryshaw on 1 Nov 2023 # +1 votes

   @bruno_perdigao is working on some improvements to the 'duplicate aggregate', as well.

   • https://github.com/IfcOpenShell/IfcOpenShell/pull/3902

   • https://community.osarch.org/discussion/comment/17881/#Comment_17881

5. S by sahrul on 1 Nov 2023 #

   thanks, @theoryshaw ,,it workit

6. S by SavyGust27 on 2 Nov 2023 #

   Must have developer extras enable in blender preferences for f3 search IFC refresh aggregate to show up, in case some one tried it and was not showing up

7. S by steverugi on 11 Nov 2023, edited 11 Nov 2023 #

   Hi @theoryshaw

   thanks to your video

   I can now assemble elements under an IfcElementAssembly

   how can I make it an IfcElementAssemblyType please?

   For instance, using a few IfcMemeber(s) I put together a roof truss, any chance to make this assembly a type to be used in more instances or to be loaded in a project?

   the only way around for me was to Ctrl+J them into a single mesh to achieve it.

   I have the same issue with a timber frame wall type

   Thanks

8. T by theoryshaw on 11 Nov 2023, edited 11 Nov 2023 # +2 votes

   Unfortunately, as i understand it, this is not currently possible.

   Others have discussed it as well. It seems from the discussions that IfcRelDefinesByObject might be the way to do it. Sounds complicated. Not sure IfcOpenShell accommodates this functionality natively yet.

   ...

   I guess in the meantime, you can use @bruno_perdigao 'Linked Aggregate' functionality, if you want an aggregate that can have linked instances. Actually, I could see this functionality evolving into 'aggregates types' too.

9. B by bruno_perdigao on 11 Nov 2023 # +2 votes

   I'd like to explore the idea of working with IfcRelDefinesByObject and IfcElementAssemblyType, but it seems to be a big task right now. So my plan is to make "Linked Aggregate" a stable feature before I explore new horizons.

10. V by VDobranov on 14 Nov 2023 # +1 votes

    I've meddled with the topic too, and described my results here: https://community.osarch.org/discussion/comment/18150/#Comment_18150

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