Hi Tom,
Thanks for your efforts with this. I am struggling to translate this to the original problem however. It looks like you have manually defined one of the edges?
@pascal I had one idea…could a script build all possible tangent-to-tangent bridges (solutions) then allow the user to discard the unwanted bridges? With the double pipe/cylinder/tube problem there is always 4 possible bridges matching to tangent using single-span plane. I think I’m right in thinking the problem is the same if you want an outer tangent bridge, which is possibly a more common problem (like stretching a piece of fabric over a frame)? You addressed a similar problem in a previous post (Surface tangent to a cylinder) but the solution uses a degree 3 bridge rather than degree 1 as could be achieved with the manual coplanar sections method.
Thanks again all.
Kelvin