Grasshopper

algorithmic modeling for Rhino

Hi everyone,

I have an issue: i create a ggIFC extruded volume in Rhino...

and then i want to export it as a mass in Revit, the process is quite easy but then the mass imported is divided vertically in random bands and i can't create a unique wall...

Is it normal?

Are there any solutions?

Thanks,

Stefano//

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check your import settings

Sorry, - i don't know maybe it's my fault - but but playing out with the deviation tolerance and the adjacent acceptable angle didn't produce any change...

printscreen?

Hi Stefano,

I can get you an improved result, but not a total fix.

 

 

IFC2x3 has bezier splines, but not nurbs.  So at the moment the plugin converts to a polycurve with segments (and these are forming the vertical edges on the extrusion).  So to exchange a nurbs extrusion profile curve, right click on ssiBake component and opt for IFC4 (or IFC2x4 as presently on menu).  The import settings you see were primarily enabled for IFC files generated from digital project.  It previously exported polylines for slab edges, but they have recently enabled polycurve with arc segments.

 

This will get the result as shown.  But unfortunately I don't think Revit can form walls on nurbs paths, so you'll probably have to convert to arc segments (either manually or you might use the convert curve component in StructDrawRhino).  Happy to advise further,

 

Cheers,

 

Jon

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Thanks a lot Jon, 

You're always very helpful and clear in your explanations.

Thanks also Chosen One!

I baked IFC 2x4 and worked perfectly, i could add also walls to my mass and i exported floors from Ghs, fantastic!

Cheers,

Stefano///

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