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Forums >> Revit Structure >> Technical Support >> 3d splines into Revit Structures 2011

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Tue, Nov 8, 2011 at 9:58:13 AM | 3d splines into Revit Structures 2011




Joined: Tue, Nov 8, 2011
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My engineer has modelled a rather complex steel roof structure in Rhino. We have had a lot of succcess in exporting from Rhino to dwg or dxf, linking CAD and then placing a beam by picking a line in the linked 3d model.However, some of the geometry has been modelled as a spline and curves in two planes. Revit does not recognise these splines (and it does seem to crash the software quite often). So we exported from Rhino as 2004 polylines in dxf. These come in and are pickable but Revit breaks down the polyline into individual arc lengths and so I have mutltiple beams when I only need one.
I have tried exporting to an SAT file and using the surface to create a roof. But I can't get my curved steel members to attach to the roof.  1. Does anyone know a way of doing thisor2. Is there a way of joining beams?or3. Can i force the polyline into thinking it is one long line and pick that?Many Thanks

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Wed, Nov 9, 2011 at 9:50:49 PM | 3d splines into Revit Structures 2011



mbsteve Avatar

Joined: Fri, Sep 22, 2006
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have never tried this, very complicated structure good for you. you may be able to join the beams together. have you studied the tutorials for massing, etc. I have not studied them, but there are ways to develop these elements in them, and select them etc.

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Thu, Nov 10, 2011 at 2:03:22 PM | 3d splines into Revit Structures 2011



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Joined: Tue, May 16, 2006
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Ah.... you can model it but can you document it to build it? One of the beefs I have with computers is people draw/create things and don't dimension them in a way that they can be built.


Splines are great visually but have you ever tried to dimension them?  Sure - node to node - with angles but then what? It is the same with an ellipse.  I prefer to create opjects like this using simple arcs and lines.   When we hand drafted, we created near ellipses using arcs which I posted here at RC in another thread.  


Good luck with your documentation.

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Thu, Nov 10, 2011 at 8:02:26 PM | 3d splines into Revit Structures 2011



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Typhoon Avatar

Joined: Tue, May 22, 2007
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Ok, maybe this can help you, watch this video from Zach Kron:



I Hope and I Wish to LEARN  more, and more, and more.... REVIT

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