Hello,
This surface is the top of a handle transitioning into cup. I would like to get rid of these surface undulations:
topo.3dm (133.8 KB)
How would you layout the surface topology to solve this?
Thanks!
That definitively helps. Is there a better approach in terms of surface topology than what I built?
my approach would be to have a first transition from the longer part to the edge. build some green helper surfaces and do this transition (blue surface)
now you can matchSrf with pull option
i needed to increase the Degree to 7 to get the match without refine - with some CV fiddling you might get it with lower degree or accept Rhino s refine output.
(you might be able to match also the longer surface to the blue surface (so the blue surface will not be part of the final surface, just becomes a helper.)
now matchSrf with pull option the smaller surface
alternative - quick and dirty: use V9 / Wip Version and the new Patch command. You can also cheat and use the new patch surface for form-finding / a geometric reference, for matchSrf to match to…
not sure if there is a solution that is “in the schhool book”. Always depends a bit on what you re after, how much you want to invest, what s the data for …
kind regards - tom
The automotive schoolbook says - use angles as close to 90° wherever possible, and distribute the opposite as evenly as possible, see scribble above.
where can i read this “schoolbook” ?
is there any reference ? a book written by a guru or a set of must see tutorials you recommend ?
this is quoted quite often in this forum:
Primary Surfacing: A NURBS Tutorial Series in Rhino3D
and some stuff is here
Alias Golden Rules
Of course there is no printed book or downloadable PDF. But any Alias, ICEM, or Catia 3D surface modeller who worked in the automotive industry knows patch layouting principles. And there are countless YouTube tutorials where you see those principles applied in practice.
Like many who also have to work with Rhino, I always point trainees to this and that as a starting point.