Grasshopper - Diagrid using contours for surface division

[Cris_Tyan (Cristian Cappai)]

Hi everyone,

I am new to Grasshopper and I am trying to create a diagrid structure on a organic trimmed surface.

I was able to do so by following this tutorial https://www.youtube.com/watch?v=w57O-Si1I-0 but the problem with this is the division are following the curved surface UVs, I would like instead to have a straight grid structure directional to Y-X coordinates.

I did manage to divide the surface and specify distances using Contours instead of Divide Domain but the problem now is I can’t List Item the corners for branch for each panel 0-1-2-3 in order to draw the diagonal lines.

Appreciate in advance

Graph

Preview

Desired grid result

[Japhy]

Hi Cristian,

Please post your GH file as well, this helps anyone who wants to chime in by not having to recreate what you have going so far. Thanks!