Extract wireframe-geo from NURBs surface

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Hi,

So with the Ends SOP on Unroll we can extract wireframes from polygon surface. How do we extract the wireframes of NURBs surfaces, as curves?

Thanks in advance. :-)
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Hi,

you can map a polygrid on the surface and use the fit node (interpolation) for example. There probably better ways.

Attachments:
curves_from_surface.hipnc (97.4 KB)

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Carve sop with breakpoints and extract curves will do it.

Works best in the U direction, so I use a reverse sop to swap U and V, run the carve again, ends sop to open the curves, and merge with the original carve result.

Attachments:
nurbs_extract_curves.hip (140.6 KB)

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