Hi Pilou,

> Is that work for curve lines too on a same plan?

Yes - all of these curves were on the same plane.


> And for lines not in the same plan? (but with commun points)

Nope, this will only work for curves that are all on one common plane.


> You have moved or erase something?

Yes sorry I forgot to mention - I moved a couple of pieces to illustrate that the results are all closed loops, not just separate line segments.

- Michael