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.