1 .TH XScreenSaver 1 "" "X Version 11"
3 quasicrystal - aperiodic plane tilings.
6 [\-display \fIhost:display.screen\fP]
7 [\-visual \fIvisual\fP]
10 [\-delay \fInumber\fP]
11 [\-speed \fInumber\fP]
12 [\-count \fInumber\fP]
13 [\-contrast \fIpercent\fP]
19 A quasicrystal is a structure that is ordered but aperiodic.
20 Two-dimensional quasicrystals can be generated by adding a set of planes
21 where x is the sine of y. Different complex aperiodic plane tilings are
22 produced depending on the period, position, and rotation of the component
23 planes, and whether the rotation of the planes is evenly distributed around
24 the circle (the "symmetric" option, above) or random. See also the
25 "RD-Bomb", "CWaves" and "Penrose" screen savers.
28 .B \-visual \fIvisual\fP
29 Specify which visual to use. Legal values are the name of a visual class,
30 or the id number (decimal or hex) of a specific visual.
33 Draw on a newly-created window. This is the default.
36 Draw on the root window.
38 .B \-delay \fInumber\fP
39 Per-frame delay, in microseconds. Default: 30000 (0.03 seconds.).
41 .B \-speed \fInumber\fP
42 Animation speed. 2 for twice as fast, 0.5 for half as fast.
44 .B \-contrast \fIcontrast\fP
45 Contrast. Sort of. Default 30%.
47 .B \-count \fInumber\fP
48 How many planes to use. Default 17.
50 .B \-wander | \-no-wander
51 Whether the planes should displace horizontally and vertically.
54 Whether the planes should rotate.
57 Allow each plane to rotate freely instead of being constrained to an
58 even distribution around the circle.
61 Whether to show a frames-per-second display at the bottom of the screen.
66 to get the default host and display number.
69 to get the name of a resource file that overrides the global resources
70 stored in the RESOURCE_MANAGER property.
75 Copyright \(co 2013 by Jamie Zawinski. Permission to use, copy, modify,
76 distribute, and sell this software and its documentation for any purpose is
77 hereby granted without fee, provided that the above copyright notice appear
78 in all copies and that both that copyright notice and this permission notice
79 appear in supporting documentation. No representations are made about the
80 suitability of this software for any purpose. It is provided "as is" without
81 express or implied warranty.