William F Pokorny <ano### [at] anonymousorg> wrote:
Perhaps useful to review that work as we look for an
> f_elliptical_torus() or complete parametric solution.

I'll go back to my initial post and see what else I need for the parametric.
I had a key insight last night that I need to pursue when I get back later.


With regard to a workaround, if needed:

http://www.econym.demon.co.uk/isotut/splines.htm

Which I should have thought of much much earlier.

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