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-
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 (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 6.09 (07-Jun-2024) quasicrystal(6)