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NAME
     grav - draws a simple orbital simulation

SYNOPSIS
     grav  [-display  host:display.screen]  [-foreground   color]
     [-background  color]  [-window]  [-root]  [-mono] [-install]
     [-visual visual] [-ncolors  integer]  [-delay  microseconds]
     [-count integer] [-decay] [-no-decay] [-trail] [-no-trail]


DESCRIPTION
     The grav program draws a simple orbital simulation

OPTIONS
     grav accepts the following options:

     -window Draw  on  a  newly-created  window.   This  is   the
             default.

     -root   Draw on the root window.

     -mono   If on a color display, pretend we're on a monochrome
             display.

     -install
             Install a private colormap for the window.

     -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.

     -ncolors integer
             How  many  colors  should  be  used  (if  possible).
             Default 200.  The colors are chosen randomly.

     -count integer
             Default 12.

     -decay

     -no-ecay
             Whether orbits should decay.


     -trail

     -no-trail
             Whether the objects should leave trails behind  them
             (makes it look vaguely like a cloud-chamber.


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), xlock(1)

COPYRIGHT
     Copyright O 1993 by Greg Bowering.

     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 docu-
     mentation.

AUTHOR
     Greg Bowering <[email protected]>, 1993.

     Ability to run standalone  or  with  xscreensaver  added  by
     Jamie Zawinski <[email protected]>, 10-May-97.

Партнёры:

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