Creating Concave Sub-surfaces

Hi, I am still very new at grasshopper and am trying to figure out how to create a double curvature surface with sub-surfaces that curve the other way.
Kind of like this?

I have made the overall surface and then created panels but I am unsure of how to proceed. Any help would be greatly appreciated!

Graphine (26.2 KB)

Look here

Search also on
Hope you are not new on web searching :stuck_out_tongue_closed_eyes:

I have exactly what you want but it’s useless for you since is 100% code. So use the attached only for fun.

Anyway the whole thing is doable with native GH components as well (maybe I’ll convert the def some day). (121.9 KB)
Surface_Inflate_V1.3dm (516.7 KB)

It seems your reference image source is from here…