hopalong(6) XScreenSaver manual hopalong(6)

NAME

hopalong - draw real plane fractals

SYNOPSIS

hopalong [--display host:display.screen] [--foreground color]
[--background color] [--window] [--root] [--window-id number][--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.

--window-id number
Draw on the specified 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.

XSCREENSAVER_WINDOW
The window ID to use with --root.

SEE ALSO

X(1), xscreensaver(1), xlock(1)

COPYRIGHT

Copyright (C) 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.

X Version 11 6.09 (07-Jun-2024) hopalong(6)