How to show grid lines between test points

#1

I would like to show a grid (see the idea below) between the test points (HB[+]) . How is that possible?

Thanks for any help.

Jurrijn (Rhino 5 user)

#2

You can try either the Face Boundaries or Mesh Edges GH native components. Probably you want to use also the swatch+preview also.
-A.