xphoon man page on BSDi

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xphoon(1)						xphoon(1)

NAME
       xphoon - displays the PHase of the mOON on the root window

SYNOPSIS
       xphoon [-b] [-t interval [-i]] [-display name]

DESCRIPTION
       Xphoon sets the X root window to a picture of the moon  in
       its  current  phase, including the partial lighting of the
       dark side by reflected earthlight.

OPTIONS
       -b     Defeats the earthlight feature,  forcing	the  dark
	      side to be black.

       -t     Have  xphoon  keep  running  and update the picture
	      every interval  minutes.	(Normally,  xphoon  just
	      sets the root picture and exits.)

       -i     Forks  a background process and prints the process-
	      id to stdout.  Useful if you want to make menu com-
	      mands to refresh or kill xphoon.

NOTES
       The original motivation for this program was that xsetroot
       was too slow.  Loading a full-screen bitmap took about  15
       seconds. We  made  a  trivial	program that  had  full-
       moon.bitmap compiled in, and it ran in less than a second.
       (And  incidentally,  the executable was smaller than full-
       moon.xbm.)  Then later we came up with the phase hacking,
       the earthlight, and the auto-scaling.

SEE ALSO
       phoon(1), xsetroot(1)

AUTHORS
       Copyright (C) 1988, 1991 by Jef Poskanzer and Craig Leres.

       The moon-phase computation is from  "moontool.c" by  John
       Walker.

			14 September 1991			1

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