Problem with kangaroo. Complex surface with equilateral triangles

Hi!

I'm trying to create with grasshopper and kangaroo a structure similar to the object in the pictures. As you can see it's a planar surface made by equilateral triangles that can "grows" changing the space between them.

Daniel Picker shows something similar in his blog, and i started from that but i need new ideas because i'm not very good with Kangaroo and i couldn't get it.

I had tried to reply with grasshopper using intersections between spheres and lines but it didn't work, so i tried again with kangaroo and kangaroo 2, the best result was with kangaroo2 but it's not good enough. I wish to adapt my planar mesh to another form, like a half-sphere or something more complex without deform the equilateral triangles. Could someone help me? I attached the with the idea that i used.

here it's daniel's article

https://spacesymmetrystructure.wordpress.com/2012/10/15/variation-f...

thanks