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.