flat panelization with quads of double curved surfaces

Hi!

I am looking for a method of flat penelization with quads of double curved surfaces (starting with half spheres, continuing with half ellipsoid and ending with structural optimized freeform structures).

How do I generate a grid on the surface that produces a quite similar net on the surface (i.e. similar or even same edge lenght). Best would it be, if this works for all the geometries.

Thanks for any help!