quasicrystal
Section: XScreenSaver manual (6x)
Updated: 6.00-1.fc34 (02-Apr-2021)
Page Index
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.
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 © 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.