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-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 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  resources  stored in the
               RESOURCE_MANAGER property.

       XSCREENSAVER_WINDOW
               The window ID to use with --root.

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 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  notice  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.