Why do these surfaces not properly create the full curve intersection? It appears that the middle surface might be the problematic one. The side surfaces intersect the middle surface up to the mid-line isocurve on one edge, then from the other edge to the mid-line isocurve. These were offset surfa…

Here’s another weird one. Again, an offset surface, with a loose tolerance of 0.05" from a primary trimmed surface that formed part of a closed polysurface. There is a line I made to trim off part of the offset surface that ended up funky. However, when I pulled that line to the surface (to trim the…

the points circled here are very close to tangent to the adjacent surface. (turning on the points for a surface is a good way to see what is really happening.) [image] this makes extending the surface troublesome as they don’t really intersect, they go very close to coplanar (not actually coplana…

can’t quite figure out what is happening with the second one… I see a curve and trimmed edge, but not the original curves or any context of what you’re trying to do? can you provide some more details?

[Pulled crv completely off surf2] For the second example, zoomed in at the red arrows on the earlier image, I wanted to trim this offset surface, as it did not correctly offset within the overall polysurface. So after extracting it, I drew a line from two edge points. Then I pulled that line and t…

[image] it’s an reported bug… insert a lot of knots and you will get more / a longer part of the searched curve. [image] Intersect two nurbs surfaces BUG there is a bug - rhino does not find the intersection of these two surfaces: _intersect not working correct. the workarround: is to exte…

Surfaces do not fully create intersection

Rhino

Tom_P June 21, 2025, 7:51pm 6

it’s an reported bug…
insert a lot of knots and you will get more / a longer part of the searched curve.

and thisone:

maybe also the second issue relates to a reported bug:

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Surfaces do not fully create intersection

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