I extracted 4 curves from a loft surface and I am trying to sweep a rectangular profile along them. However, they all start from the same point rather than following the path of the curve exactly:
unnamed.gh (12.4 KB)
unnamed.gh (12.4 KB)
Your section curve is just one, each sweep is using that section with a different rail.
This is correct:
(rail and section selected)
Sweep function use the section curve from where it is.
If you want to do a particular initial section for each rail, create it.
(then graft both rails and sections…)
Difficult to guess what you are trying to do…
In gh extract the start (and/or the end point - depending on direction alignment) and move your profile curve there - this actually creates copies.
Use your moved profiles to creare the sweep.