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PR: Cannot export model Group as IfcBuiltSystem

Open Bootata opened this issue 1 year ago • 5 comments

Problem Description

Hi, I need to export a group of walls from Revit as a IfcBuiltSystem/OUTERSHELL (IFC4x3 configuration). I've tried creating a model group and used the mapping default parameters available in Revit 2024 to map easily the model group. Export_IfcBuiltSystem_RevitMapping In export IFC configuration setttings all entities listed are correctly set to be exported.

In the IFC file there is not the entity IfcBuiltSystem, as hoped. Export_IfcBuiltSystem_IFCViewer_EntityNotFound

Is it possibile to export this entity? Maybe there is a way that i'm ignoring to do so?

IFC File header: image

Revit Version

2024.0.x

IFC for Revit Addon Version

24.x.x

Windows Version

10 22H2

Bootata avatar Dec 05 '24 10:12 Bootata

I've added an item to our backlog to support this in an upcoming release.

AngelVelezSosa avatar Dec 05 '24 14:12 AngelVelezSosa

Thanks @AngelVelezSosa, I will add some more information from my tests: it seems like a model group in revit can be exported just as IfcGroup. Apparently, Revit also cannot export a model group as IfcSystem and IfcDistributionSystem.

Bootata avatar Dec 05 '24 16:12 Bootata

I'd expect a few to work, I'll verify now.

AngelVelezSosa avatar Dec 05 '24 16:12 AngelVelezSosa

I'll add those to the request.

AngelVelezSosa avatar Dec 05 '24 17:12 AngelVelezSosa

Thank you

Bootata avatar Dec 09 '24 09:12 Bootata

Hello @Bootata,

The functionality to export a Revit model group as IfcBuiltSystem has been successfully implemented and fixed starting with Revit 2024. Therefore, this issue can be closed.

Thank you for your collaboration!

Testing environment:

  • Autodesk Revit 2024 (IFC 24.3.20.0)
  • Autodesk Revit 2025 (IFC 25.4.3.0)
  • Autodesk Revit 2026 (IFC 26.1.0.0)
Image

ArtemHnatko avatar Sep 26 '25 12:09 ArtemHnatko