planes, and whether the rotation of the planes is evenly distributed around
the circle (the "symmetric" option, above) or random. See also the
"RD-Bomb", "CWaves" and "Penrose" screen savers.
-https://en.wikipedia.org/wiki/Quasicrystal
.SH OPTIONS
.TP 8
.B \-visual \fIvisual\fP