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 © 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.