Here is a slight update to the Hopf torus .nod.

The three spherical curve versions are switchable. A 3+ input switch would be nice... Also a double throw, triple pole switch...

The trig and sinusoid formulas make the same, or nearly the same Hopf torus, if their inputs are the same.

One lobe is calculated, lofted, circular arrayed, and joined, to a solid.

The number of total lobes can be 1, 2, 3, 4, ...
The shape factor can be adjusted.
The number of circles generated can be adjusted by numpoints.

A second set of 20 or so network curves has not been done yet.

- Brian