In your article about square grids, we are talking about creating a planar grid. I tried to manually build the grid as you have in the article. http://www.geometrie.tugraz.at/wallner/vfdesign.pdf
Can you please tell me in what way in the rhinoceros/evolute it's possible to build a mesh (or curve network) in the figure. The forming lines of the mesh (or curve network) (mesh is planer) are hyperbolas.
Or something very similar to this mesh (or curve network)?