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Autodesk / revit-ifc

IFC for Revit and Navisworks (2019+)
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Dealing with multiple imports (link) of an updated IFC file #408

Open Moult opened 2 years ago

Moult commented 2 years ago

When an IFC is linked into Revit, a Revit file is generated, as well as a shared parameters file.

Let's say the IFC model is updated, and so a consultant receives a new IFC. They then link that into Revit. A new Revit file is generated, and a new shared parameters file is also generated.

Even if the pset name and property names are the same between the two IFC files, the shared parameter files will use different GUIDs.

This means that any work you did creating filters or anything that involves work with those shared parameters will be lost when you receive a new IFC.

What is the expected workflow for this? This seems like something quite fundamental: using a property from a BIM model. Has anyone reported this before? How are people reliably referencing IFCs that get updated?

AngelVelezSosa commented 2 years ago

We are currently looking at improving parameter support for linked IFC files - this would be both around performance and re-usability.

eibre commented 2 years ago

If you replace the ifc file on the folder/location it is stored, Revit will update the generated revit file and keep the shared parameter file.