Hi Pascal,
Thanks for the clarity here. Is there a rule of thumb as for which curve to sweep and which curve to rail in situations like these?
I tried your solution and it resulted in a better surface, but different geometry:
Additionally, it still has visual breaks in it:
Emap:
Keyshot:
It also has different geometry:
so would you recommend using two cross section curves on either end of the rail to gain more control of the shape, ending up with a method like this?:
or just simply using 1 rail curve and 1 cross section curve, overbuilding, and then trimming back?
Additionally, there is nothing in Rhino that tells me sweeping the shorter degree 2 curve on the longer 3 part curve will result in the “loose” offset that you describe. How can I know this so that in the future I avoid making mistakes like this? will it just come with experience?