Where to start?

Hi all,

I know this is pretty vague, but i found this pattern that id love to recreate, Ive looked all over for similar grasshopper references, but the searches only turned up the original images.

Was wondering if anyone could point me in the right direction?

Thanks in advance.

And now there are also some tools in Nautilus plugin to get extract the directions of a scalar field.


Thanks Laurent, this looks perfect. Much appreciated.