hopalong
Section: XScreenSaver manual (6)
Updated: 5.40 (12-Aug-2018)
Page Index
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]
[-fps]
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.)
- -fps
-
Display the current frame rate and CPU load.
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 © 1988-91 by Patrick J. Naughton.
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 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.