I am having a problem with a basic modeling operation - that may have nothing to do with GH. I have a series of curve paths - that curve in all directions - and I would like to sweep a rectangular section across them but maintain their orientation along the path's length. More concretely, I want the horizontal length to remain parallel with the xy plane of the model so that this surface could represent a path or walkable surface.
I have played around with the various ways of producing perpendicular planes to the curves or frames and then adding an "align planes" component but invariably there are always some planes that are rotated 90 degrees to the others. This is the most troubling part of the modeling issue, but I am slo wondering if I should be sweeping along a path or placing the section at intervals and then lofting.
I realise this might seem really elementary...but I'm not sure how to deal with it.
Thanks so much in advance.