I modeled with Rhinoceros 3D (mac WIP version) a building.
I try to import in Houdini 11 (HD version) with IGES format to keep nurbs shapes.

I have some stranges points and lines in the file (model is good).
See attached image (exported from rhino in IGES Maya preset).

Is there a specific iges format to import in houdini ?

Thanks in advance.

append measureSOP and calculate area, then put down deleteSOP and in the filter expression field type $AREA == 0
this removes all the prims with zero area (curves or some trim surf operation leftovers etc.)

hope that helps.

I tried it, no change.

Thanks anyway

Can you attach the file? It might be then badly interpreted multi trim surface ( houdini is really weak with them) or some other stuff with very minimal area. You can increase delete threshold to say, 0.001 (this may change depend on the scale of your model).

I will post tomorrow a light version, my zipped iges file is 10,7 Mo and i'll not in my office before tomorrow. :wink: