Equations for the curves are
x(t) = Sin(mt)
y(t) = Sin(nt + Fi) where m, n are integer frequences and Fi is the phase
difference. n has a small "add on" to get phase precession (i.e. every
"new" figure has a new shifted phase). Free source.
VRML 3D Lissajous bands
See also animated 3D Lissajous bands (j=3, k=2, l=1, m=1) and Why VRML? |

E-notes