Thread portraits on a pin loom of any shape, in CMYK or a single colour. Solves a continuous pin path per thread and gives you the winding sequence.
Pins are numbered 1 to N clockwise from the top centre (on straight-edged looms, pin 1 is the first pin right of centre). In CMYK mode each colour is its own continuous thread, and overlaps mix like ink: cyan over yellow reads green.