hopalong - draw real plane fractals
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]
The hop program generates real plane fractals as described
in the September 1986 issue of Scientific American.
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.
- 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.
X(1), xscreensaver(1), xlock(1)
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.
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.