XScreenSaver(1)

NAME
       halo - draw circular patterns

SYNOPSIS
       halo  [-display  host:display.screen]  [-foreground color]
       [-background color] [-window] [-root]  [-mono]  [-install]
       [-visual  visual] [-count int] [-delay usecs] [-mode seuss
       | ramp | random ] [-animate]  [-colors  integer]  [-cycle]
       [-no-cycle] [-cycle-delay usecs]

DESCRIPTION
       The halo program draws cool patterns based on circles.

OPTIONS
       halo 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.

       -count integer
               How many circles to draw.  Default 0, meaning ran-
               dom.

       -mode seuss | ramp | random
               In seuss mode, alternating striped curves will  be
               drawn.
               In ramp mode, a color ramp will be drawn.
               random means pick the mode randomly.

       -delay microseconds
               How  much  of a delay should be introduced between
               steps of the animation.  Default 100000, or  about
               0.1 second.

       -colors integer
               How many colors to use.  Default 100.

       -animate
               If specified, then the centerpoints of the circles
               will bounce around.  Otherwise, the  circles  will
               be  drawn  once,  erased, and a new set of circles
               will be drawn.

       -cycle

       -no-cycle
               Whether to do colormap  cycling.   Default  is  to
               cycle.

       -cycle-delay
               Number  of microseconds between shifts of the col-
               ormap; default 100000, or 1/10th second.

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_MAN-
               AGER property.

SEE ALSO
       X(1) xscreensaver(1) 

COPYRIGHT
       Copyright (C) 1993 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 lt;jwz@netscape.com, 6-jul-93.