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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
       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.
       https://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
               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.


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 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.

X Version 11                  5.34 (24-Oct-2015)               quasicrystal(6)

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