Wow, thanks Michael! This will be very helpful! I've noticed that closed curves yield an open polyline right now - I haven't looked into closing it in the script yet, but I thought I'd mention it.

I take it that only the offset of the point is taken into account, not its relative position along the curve? In a perfect world, it would be also one of the points of the polyline generated ;)

Further simplification of the polyline based on a threshold angle is probably a lot more involved, too, I guess.

Thanks again for your help!

- Fabien