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author | Simon Rettberg | 2024-09-06 14:42:37 +0200 |
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committer | Simon Rettberg | 2024-09-06 14:42:37 +0200 |
commit | badef32037f52f79abc1f1440b786cd71afdf270 (patch) | |
tree | 412b792d4cab4a7a110db82fcf74fe8a1ac55ec1 /hacks/penrose.man | |
parent | Delete pre-6.00 files (diff) | |
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diff --git a/hacks/penrose.man b/hacks/penrose.man deleted file mode 100644 index d136e3a..0000000 --- a/hacks/penrose.man +++ /dev/null @@ -1,106 +0,0 @@ -.TH XScreenSaver 1 "10-May-97" "X Version 11" -.SH NAME -penrose \- draws quasiperiodic tilings -.SH SYNOPSIS -.B penrose -[\-display \fIhost:display.screen\fP] [\-foreground \fIcolor\fP] [\-background \fIcolor\fP] [\-window] [\-root] [\-mono] [\-install] [\-visual \fIvisual\fP] [\-ncolors \fIinteger\fP] [\-delay \fImicroseconds\fP] [\-size \fIinteger\fP] [\-ammann] [\-no\-ammann] - -[\-fps] -.SH DESCRIPTION -The \fIpenrose\fP program draws quasiperiodic tilings. - -See Onoda, Steinhardt, DiVincenzo and Socolar in -Phys. Rev. Lett. 60, #25, 1988 or -Strandburg in Computers in Physics, Sep/Oct 1991. - -This implementation uses the simpler version of the growth -algorithm, i.e., if there are no forced vertices, a randomly chosen -tile is added to a randomly chosen vertex (no preference for those -108 degree angles). - -There are two essential differences to the algorithm presented in -the literature: First, we do not allow the tiling to enclose an -untiled area. Whenever this is in danger of happening, we just -do not add the tile, hoping for a better random choice the next -time. Second, when choosing a vertex randomly, we will take -one that lies within the viewport if available. If this seems to -cause enclosures in the forced rule case, we will allow invisible -vertices to be chosen. - -Tiling is restarted whenever one of the following happens: there -are no incomplete vertices within the viewport or the tiling has -extended a window's length beyond the edge of the window -horizontally or vertically or forced rule choice has failed 100 -times due to areas about to become enclosed. - -Although quasiperiodic tilings are produced, the tiles themselves are -not penrose tiles (darts and kites). In contrast to penrose tiles, -these tiles can be arranged to form a periodic tiling. - -.SH OPTIONS -.I penrose -accepts the following options: -.TP 8 -.B \-window -Draw on a newly-created window. This is the default. -.TP 8 -.B \-root -Draw on the root window. -.TP 8 -.B \-mono -If on a color display, pretend we're on a monochrome display. -.TP 8 -.B \-install -Install a private colormap for the window. -.TP 8 -.B \-visual \fIvisual\fP -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. -.TP 8 -.B \-ncolors \fIinteger\fP -How many colors should be used (if possible). Default 64. -The colors are chosen randomly. -.TP 8 -.B \-size \fIinteger\fP -How big the tiles should be. Default 40 pixels. - -.TP 8 -.B \-delay \fImilliseconds\fP -How long (in 1/1,000,000'ths of a second) to wait between drawing each -tile. Default 10,000 or .01 seconds. - -.TP 8 -.B \-ammann -.TP 8 -.B \-no\-ammann -Whether Ammann lines should be added. - -.TP 8 -.B \-fps -Display the current frame rate and CPU load. -.SH ENVIRONMENT -.PP -.TP 8 -.B DISPLAY -to get the default host and display number. -.TP 8 -.B XENVIRONMENT -to get the name of a resource file that overrides the global resources -stored in the RESOURCE_MANAGER property. -.SH SEE ALSO -.BR X (1), -.BR xscreensaver (1), -.BR xlock (1) -.SH COPYRIGHT -Copyright \(co 1996 by Timo Korvola. - -Permission to use, copy, modify, and distribute this software and its -documentation for any purpose and without fee is hereby granted, -provided that the above copyright notice appear in all copies and that -both that copyright notice and this permission notice appear in -supporting documentation. -.SH AUTHOR -Timo Korvola <tkorvola@dopey.hut.fi>, 1996. - -Ability to run standalone or with \fIxscreensaver\fP added by -Jamie Zawinski <jwz@jwz.org>, 10-May-97. |