Obtain geometry of family instance

Revit
1

Hello,

I’m trying to generate an offset volume around each structural column in my model. I expected this to be quite simple but am stuck.

Problem is I need to figure out the geometry of the column section (width, length and rotation) which isn’t readily available in the parameters. What I’ve tried so far is using Element.ElementFaceReferences (can’t seem to make anything out of those?) and using GetOriginalGeometry (which returns GeometryElements which don’t help either). But from what I understand a family instance doesn’t actually have a geometry, as it’s just a transformation of the base geometry. Any advice on how I can tackle this?

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2

@Nic
Could you show the elements in Revit also? It seems at the moment that you could need to use a StructuralFraming.BeamByCurve node or similar before getting a geometry from your structural framing type…

3

@Nic Try changing Settings > Geometry Working Range …

Geometry Working Range … > Medium
20171201-1A

Geometry Working Range … > Large
20171201-1B

4

@Yna_Db Tried this and got same error. It was due to the geometry working range as suggested by @Vikram_Subbaiah . Thank you both for helping.

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5

This happens frequently indeed, see here for more details:

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