Experiencing a lot of tangency issues lately. Blend surface between two cut surfaces, as i have done for many years. V5 made it smooth, no issues. V6 has a kink i cannot get rid of. How to address this structurally? As the starting surfaces are part of a large polysurf i cannot/will not change them.…

Hello - MatchSrf will fix it up (Preserve isocurve direction, Match by closest points) but I see the problem. In this particular situation,( tangent directions parallel on either side) I might skip BlendSrf altogether and make a loft and then manipulate that with SetSurfaceTangent and MatchSrf for …

It solves the problem but involves a lot of extra work if many of these transitions are to be made, in addition to checking each and every step on continuity. I hope this will be resolved soon? Eric.

Still using _BlendSrf, you can get close to V5’s result by using _ShrinkTrimmedSrf followed with _RebuildEdges on the right surface.

Hi Eric - I understand and I agree it should look cleaner - just trying to find you a way out for when things do not work as expected. The problem I think we’re running into here is that BlendSrf requires ‘Interior shapes’ to be set in this case and with the complex edges here that is intractable (…

Is this the same as mine here? [image] Match G2 and Zebra not working on a seemingly simple surface Rhino for Windows I know the surfaces don’t line up, and that is what I was trying to correct: [bild] Rhino [bild] Alias But I guess I ended up falling int…

[image] pascal: I do not know what the answer is The elephant in the room is that R5 apparently had an answer but we seem to have lost it. The OP’s use case seems to be a pretty commonplace one, so it seems odd to lose that capability for the sake of other, possibly rarer, use cases. Regards …

Hello - one of the things we heard a lot was that BlendSrf should make simple surfaces if the input allowed it - as I mentioned above, I believe this is fallout from that change in V6 - you apparently can’t have everything, but the YT item asks to bring it a little closer. -Pascal

Hi @pascal , So, if I understand you aright, what you are saying is that because there were use cases that R5 BlendSrf didn’t support, the code was rewritten for R6 in such a way that while it (presumably) supported those use cases it was no longer capable of supporting the OP’s use case. Given tha…

I hope that the Rhino team will consider to implement the majority of the suggested ideas regarding “Blend surface” in the following topic: [image] Bugs in Rhino 6 + suggestions for the BlendSrf command Rhino for Windows Hi there, Currently I’m using Rhino 6 Evaluation an…

@Steve : if i shrink trimmed surfaces, i loose the ability to revert to the original full size surface when wanting to change later. Huge setback. Shrinking and rebuilding edges are extra actions i never had to do before. So not only extra steps to keep in mind each time, but also a lot of extra time…

Blendsrf issue V6 vs V5

Rhino Rhino for Windows

brian (Brian Gillespie) April 28, 2020, 10:48pm 16

RH-56944 is fixed in the latest WIP

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Blendsrf issue V6 vs V5

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