IFC-import: Why are the levels not correct?

[jan]

The construction engineer has exported the structural model from Revit to an IFC model.

In AutoCAD Architecture 2015 i import that model, but I get wrong levels values!

The structural engineers Revit project has a project base point = 0,0,3280

When I import I get all z-values wrong by 3300 mm.

In AutoCAD Architecture: ID for a point on a specific surface returns a z-value = -170

In Revit: Spot elevation for the same surface returns the value 3160 for the same surface.

That gives a difference i z-direction = 3330 mm where I would expect it to be only 3280.

Can anyone explain why?

Regards

Jan Grenov

[Victoria.Studley]

Hi Jan,

It sounds like this may be an issue with the export from Revit. I'll ask one of our Revit specialists to take a look at your post and provide some insight.

In the meantime, is it possible for you to attach a sample project/file where this is happening?

[jan]

OK. Thanks a lot for Your reply 🙂



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Jan Grenov



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Building & Modelling IT



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jan@grenov.dk



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