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.