Extruding along a 3D path (Solved!)

[Jee-Bee]

why stick to 0.16 it is a 2.5 year old version...

[LLuoss]

The "Auxiliary spine" mode is supposed to do this, when its "Contact" option is set to "Contact on border".
Unfortunately, this is broken upstream (in OpenCascade). I have never seen this working.
A workaround is to use the Gordon surface of the Curves workbench.
It builds a surface from a curve network. The guides and profiles must form a grid pattern.
Or you can also give a try at the Surface workbench and its "Filling" tool.

I mean,using the "Auxiliary spine" mode,I have make it succeeded that sweep along two path.But what I want to ask is whether this function implements variable cross-section sweep?when I wrote "ps1.add(profile1,False, False) ps1.add(profile2,False, False)",I found that all the cross sections were formed by profile2 along the path.