limaBean curve

 From:  bemfarmer
10600.1 
limaBean.js is a MultiProcess node which produces a planar closed curve, derived from polar coordinates, sine and cosine.
The original purpose of the curve was to display a Rolfson Link for the (6,3,1) link knot, similar to a Borromean ring.
And possibly to assist in creating a white jade dragon pendant, of three dragons with intertwined bodies/tails, from the Phileas Fogg, Passepartout series.

It would be desirable to add a z bend near both ends, to assist in chaining three in a circular array.
Mode addition of curve vs interpcurve could be added.

- Brian

Spent a couple of hours trying to construct a macro, but no success.

Maybe a node which plots a polar curve, parametrically would be helpful?

circle sweep, and some sort of placement help would be nice.

Reduced theta range to (0, PI) to avoid double loop.
Curve is not quite passing through the origin...

EDITED: 23 Feb 2022 by BEMFARMER