Crossing points

[isilayyc]

Hi everyone. I am trying to make a structure just like the right one on the rhino screen. Because I changed the place of top and bottom parts of the beginning surface, my cylinder, the top and bottom are not symmetrical right now. Therefore the pipes between the points are not continuing on the cylinder surface. How can I obtain the crossing pipes which continue on the surface? Thanks in advanced

[Joseph_Oster]

The direction of curves on surface

CrvSrf (Curve On Surface) will not generate curves that cross the seam, so the best alternative I can think of is this: [crvOnSrf_2019Aug9a] crvOnSrf_2019Aug9a.gh (15.1 KB) It finds the shortest CrvSrf and replicates it by rotating it around the center. Good enough? P.S. Turns out that a bit of post-processing is necessary (yellow group below) to really take advantage of this idea. Loft the list of curves from Rotate to change the seam before… SrfSplit the re-lofted surface. Use the st…