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quasicrystal(6)		      XScreenSaver manual	       quasicrystal(6)

NAME
       quasicrystal - aperiodic plane tilings.

SYNOPSIS
       quasicrystal  [-display host:display.screen] [-visual visual] [-window]
       [-root] [-delay number] [-speed number] [-count number] [-contrast per‐
       cent] [-no-wander] [-no-spin] [-asymmetric] [-fps]

DESCRIPTION
       A  quasicrystal	is  a  structure  that is ordered but aperiodic.  Two-
       dimensional quasicrystals can be generated by adding a  set  of	planes
       where x is the sine of y. Different complex aperiodic plane tilings are
       produced depending on the period, position, and rotation of the	compo‐
       nent  planes, and whether the rotation of the planes is evenly distrib‐
       uted around the circle (the "symmetric" option, above) or  random.  See
       also   the   "RD-Bomb",	 "CWaves"   and	  "Penrose"   screen   savers.
       http://en.wikipedia.org/wiki/Quasicrystal

OPTIONS
       -visual visual
	       Specify which visual to use.  Legal values are the  name	 of  a
	       visual  class,  or the id number (decimal or hex) of a specific
	       visual.

       -window Draw on a newly-created window.	This is the default.

       -root   Draw on the root window.

       -delay number
	       Per-frame delay, in microseconds.  Default:  30000  (0.03  sec‐
	       onds.).

       -speed number
	       Animation speed. 2 for twice as fast, 0.5 for half as fast.

       -contrast contrast
	       Contrast. Sort of.  Default 30%.

       -count number
	       How many planes to use. Default 17.

       -wander | -no-wander
	       Whether the planes should displace horizontally and vertically.

       -spin | -no-spin
	       Whether the planes should rotate.

       -asymmetric
	       Allow  each plane to rotate freely instead of being constrained
	       to an even distribution around the circle.

       -fps | -no-fps
	       Whether to show a frames-per-second display at  the  bottom  of
	       the screen.

ENVIRONMENT
       DISPLAY to get the default host and display number.

       XENVIRONMENT
	       to  get	the  name of a resource file that overrides the global
	       resources stored in the RESOURCE_MANAGER property.

SEE ALSO
       X(1), xscreensaver(1)

COPYRIGHT
       Copyright © 2013 by Jamie Zawinski.  Permission to use,	copy,  modify,
       distribute,  and	 sell this software and its documentation for any pur‐
       pose is hereby granted without fee, provided that the  above  copyright
       notice  appear  in  all	copies and that both that copyright notice and
       this permission notice appear in supporting documentation.   No	repre‐
       sentations are made about the suitability of this software for any pur‐
       pose.  It is provided "as is" without express or implied warranty.

AUTHOR
       Jamie Zawinski.

X Version 11		      5.26 (09-Dec-2013)	       quasicrystal(6)

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