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)