xscreensaver(1)
NAME
hopalong - draw real plane fractals
SYNOPSIS
hopalong [-display host:display.screen] [-foreground color] [-background color] [-window] [-root] [-mono] [-install] [-visual visual] [-ncolors integer] [-delay microseconds] [-cycles integer] [-count integer] [-jong] [-no-jong] [-jong] [-no-sine]
DESCRIPTION
The hop program generates real plane fractals as described
in the September 1986 issue of Scientific American.
OPTIONS
hopalong 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 used cycle through the
hue, making N stops around the color wheel. - -cycles integer
- How long to run each batch. Default 2500 pixels.
- -count integer
- How many pixels should be drawn before a color
change. Default 1000. - -jong integer
- -no-jong integer
- Whether to use the Jong format (default is to
choose randomly.) - -sine integer
- -no-sine integer
- Whether to use the Sine format (default is to
choose randomly.)
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), xlock(1)
COPYRIGHT
Copyright © 1988-91 by Patrick J. Naughton.
Permission to use, copy, modify, and distribute this soft
ware 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
documentation.
AUTHOR
Patrick J. Naughton <naughton@eng.sun.com>, 23-mar-88.
- Ability to run standalone or with xscreensaver added by
Jamie Zawinski <jwz@jwz.org>, 13-aug-92, and again on
10-May-97.