I'd be interested in looking at your code. And any suggestions by anyone else. I think once someone suggested some module called something like "skins". Any approaches to morphing are welcome... On Fri, Aug 4, 2017 at 4:18 AM, Gadgetmind <lists@foxhill.co.uk> wrote: > On 04/08/17 03:05, Dan Shriver wrote: > >> I would like to play with other arch types (parabolic, >> hyperbolic-catenoidal) but mainly the first two I described, and mainly >> various types of transitions from one into the other. >> >> Additionally I would lay the arches along an odd path that is itself a >> group of arches. >> >> Any suggestions? >> > > I'm sure there will be other ideas, but I'd represent the arches as > vectors of points. You can generate these points algorithmically in > functions (see the "let" operator as it's pretty much essential for complex > functions), write additional functions to "tween" between two arches to > generate new ones, and then render the arches as polygons to be extruded or > hulled. > > I use techniques like these to generate complex shapes based on things > like wing profiles and super ellipses (generated by functions) that I then > join together with splines to get the basic shapes, more splines at > (roughly!) right angles to get a set of skin points, and then use "skin" > from list comprehensions to create a 3D shape. > > I've also done some conic sections by drawing cones (cylinders with one > diameter set to zero) and using the project operator. > > I can point you to my code on Thingiverse if you like, but I'm new to > OpenSCAD and there are likely to be better ideas. > >