topic Re: IFC from Revit improperly importing doors and walls in Collaboration with other software

IFC from Revit improperly importing doors and walls

Anonymous — Tue, 13 Mar 2012 18:59:30 GMT

I have an IFC model that I've created with Revit and checked with Solibri. When I bring the model into Archicad, it sends all the doors 400' feet or so into the air. It will also improperly trim walls to roofs and window openings and leave strange wall cuts.

I've tried adjusting all of the elevation settings and project 0 to no avail. It seems to be a problem with the sill height in connection to it's referenced story which can only be corrected by individually editing each door individually, which is useless for interoperability.

I have the latest IFC update and have checked that the model is perfect in solibri.

Re: IFC from Revit improperly importing doors and walls

Erika Epstein — Tue, 13 Mar 2012 20:42:37 GMT

Perhaps you can post some screen shots of the trimming in revit, solibri and in archicad. How revit trims may be different than archicad.

Do archicad trims exported via ifc still function in revit?
Does solibri have special revit ifc translators?

regarding the doors you wrote
"which can only be corrected by individually editing each door individually,"

the parametric objects of both programs should allow you to select all the doors and edit the sill to_ height collectively. Why are you having to select each one individually?

Re: IFC from Revit improperly importing doors and walls

Anonymous — Wed, 14 Mar 2012 14:23:43 GMT

I'll work on getting some screenshot's.

regarding the doors..
all of the doors stack into 4 levels, with all the doors being at the same 4 elevations. I know in the revit model, that this is not the case for the doors and that they are at different levels. So editing each door to go back to it's original elevation is out of the question.

we're trying to coordinate a revit project with our archicad project, so we'll need to be able to update the ifc import model frequently so editing components individually isn't practical for productivity.

Re: IFC from Revit improperly importing doors and walls

Erika Epstein — Wed, 14 Mar 2012 15:49:11 GMT

can you add a bogus parameter in revit that can be used in AC to quickly filter by story or? In revit are the doors set relative to a story or to a wall?

Re: IFC from Revit improperly importing doors and walls

Anonymous — Wed, 14 Mar 2012 16:20:52 GMT

if you can see, the walls on the closest corner are also cutting through the windows and various walls have small parts that are no longer cut to the roofs.

Re: IFC from Revit improperly importing doors and walls

Erika Epstein — Wed, 14 Mar 2012 21:02:08 GMT

Hmm.
What does tech support say when they analyze your model?

Re: IFC from Revit improperly importing doors and walls

Anonymous — Wed, 14 Mar 2012 21:24:33 GMT

tech support? I guess I am the tech support.

unfortunately, this is really my first venture into Revit, having used Archicad for the past 8 years. This aint lookin good.

Re: IFC from Revit improperly importing doors and walls

Anonymous — Wed, 14 Mar 2012 21:26:46 GMT

Do you have any additional levels added in Archicad?
Maybe the doors are referencing levels not wall base?

Re: IFC from Revit improperly importing doors and walls

Anonymous — Thu, 15 Mar 2012 13:24:35 GMT

it's actually setting the sill heights of the doors to something like 430'. I think this may have to do with the project 0 reference.

I've tried resetting the project zero to 430' and importing the .ifc model with an elevation gain of 430' with the same results.

The IFC model imports the corresponding layers from the Revit model and I import it using a new project with only 1 level set. I've also tried manually adding in the levels at the corresponding elevations prior to the .ifc import, again with the same results.

Re: IFC from Revit improperly importing doors and walls

Anonymous — Fri, 16 Mar 2012 14:31:46 GMT

Select all doors and set the Anchor to "Sill to Wall base" and set the value to 0.

Re: IFC from Revit improperly importing doors and walls

Anonymous — Mon, 19 Mar 2012 16:49:43 GMT

wow, thought I had tried that, but apparently this worked. I still have some troubles with walls improperly trimming, but hopefully this is enough to make the model usable now.

Thanks!