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XScreenSaver(1)					  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  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 <jwz@jwz.org>, 6-jul-93.

X Version 11		    12-Jun-97		  XScreenSaver(1)

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