The biggest limitation I witness in ArchiCAD, Revit and ADT is that the real building model and the freeform geometry is not fully integrated:
In ArchiCAD, you can use MaxonForm, but the imported geometry is a single GDL object. When you model an ArchiCAD wall inside MaxonForm, it's not a wall anymore and thus will be missing in wall schedules, will not be able to get openings etc...
ArchiCAD 10 will have better modeling freedom, as shown on
http://www.graphisoft.com/products/archicad/ac10/demo
In Revit (correct me if I'm wrong), you can import NURBS geometry and then assign building data to it. This sounds to be closer to BIM then ArchiCAD. But where are the limitations? Wes? Scott?
In ADT, you can use regular AutoCAD geometry and the rather flexible Mass Elements, but they will not behave as walls or floors.
So to me, this is still a proof that they tackle drafting and modeling first and then try to synchronize it with the BIM model.
--- stefan boeykens --- bim-expert-architect-engineer-musician ---
Archicad28/Revit2024/Rhino8/Solibri/Zoom
MBP2023:14"M2MAX/Sequoia+Win11
Archicad-user since 1998
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