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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] [--window-id number] [--delay number]  [--speed  number]	[--count
     number]   [--contrast  percent]  [--no-wander]  [--no-spin]  [--asymmetric]
     [--fps]

DESCRIPTION
     A quasicrystal is a structure that is ordered  but  aperiodic.   Two-dimen-
     sional  quasicrystals can be generated by adding a set of planes where x is
     the sine of y. Different complex aperiodic plane tilings are  produced  de-
     pending  on the period, position, and rotation of the component 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.

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.

     --window-id number
	     Draw on the specified window.

     --delay number
	     Per-frame delay, in microseconds.	Default: 30000 (0.03 seconds.).

     --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 re-
	     sources stored in the RESOURCE_MANAGER property.

     XSCREENSAVER_WINDOW
	     The window ID to use with --root.

SEE ALSO
     X(1), xscreensaver(1)

COPYRIGHT
     Copyright (C) 2013 by Jamie Zawinski.  Permission	to  use,  copy,  modify,
     distribute, and sell this software and its documentation for any purpose is
     hereby granted without fee, provided that the above copyright notice appear
     in  all  copies and that both that copyright notice and this permission no-
     tice appear in supporting documentation.  No representations are made about
     the suitability of this software for any purpose.	It is provided	"as  is"
     without express or implied warranty.

AUTHOR
     Jamie Zawinski.

X Version 11		       6.15 (30-Mar-2026)		 quasicrystal(6)

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