hopalong



XScreenSaver(1)                                                XScreenSaver(1)




NAME

       hopalong - draw real plane fractals


SYNOPSIS

       hopalong  [-display  host:display.screen]  [-foreground  color] [-back-
       ground color] [-window] [-root]  [-mono]  [-install]  [-visual  visual]
       [-ncolors  integer]  [-delay  microseconds]  [-cycles  integer] [-count
       integer] [-jong] [-no-jong] [-jong] [-no-sine]



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.)



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,  pro-
       vided  that  the  above  copyright notice appear in all copies and that
       both that copyright notice and this permission notice  appear  in  sup-
       porting 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                       10-May-97                   XScreenSaver(1)

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