Hello,

i am trying to model the two channels enclosed by a gyroid surface.

It should look something like this

I created the gyroid surface with millipede isosurface plugin but i dont know how to extract the skeletal geometry.

If

S_Gyroid (x,y,z) = sin (by)*cos(cz)+sin(cz)*cos(ax)+sin(ax)*cos(by)

in theory one channel is defined by S_Gyroid > t the other one by S_Gyroid <-t.

How can i implement that in my code?

I tried to use the cull pattern in combination with the larger than tool, but i didnt get any usable results.

Can someone please help?

Gyroid_parametric_surface.gh (15.8 KB)