pst-sphericaltrochoid:

This package simulates the generation of a spherical trochoid by a point on a circle rolling without sliding along the edge of another circle, but on the same sphere. (See https://demonstrations.wolfram.com/SphericalTrochoid/)

PSTricks is PostScript Tricks, the documentation cannot be run with pdftex, use the sequence latex->dvips->ps2pdf or lualatex, which is a bit slow for animations but the easiest way. To view the animations use the AdobeReader or convert it to gif.

This program can be redistributed and/or modified under the terms of the LaTeX Project Public License Distributed from CTAN archives in directory macros/latex/base/lppl.txt.

hvoss@tug.org