XScreenSaver(r)                                   XScreenSaver(r)



NAME
       hyperball - 2d projection of a 4d object

SYNOPSIS
       hyperball   [-display   host:display.screen]  [-foreground
       color] [-background color] [-xy float]  [-xz  float]  [-yz
       float]  [-xw  float]  [-yw float] [-zw float] [-observer-z
       int] [-delay usecs] [-window] [-root]  [-mono]  [-install]
       [-visual visual]

DESCRIPTION
       The hyperball program displays a wireframe projection of a
       hyperball which is rotating at user-specified rates around
       any or all of its four axes.

OPTIONS
       hyperball 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.

       -delay microseconds
               How  much  of a delay should be introduced between
               steps of the animation.  Default 100000, or  about
               1/10th second.

       -observer-z int
               How  far  away  the observer is from the center of
               the cube (the cube is one unit per side.)  Default
               5.

       -xw float

       -xy float

       -xz float

       -yw float

       -yz float

       -zw float
               The  amount that the ball should be rotated around
               the specified axis at each frame of the animation,
               expressed  in  radians.   These  should  be  small
               floating-point values (less than 0.05 works best.)
               Default: xy=0.01, xz=0.005, yw=0.01.

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_MAN-
               AGER property.

SEE ALSO
       X(X), xscreensaver(r)

COPYRIGHT
       Copyright (C) 2000 by Joe Keane.  Permission to use, copy,
       modify, distribute, and sell this software and  its  docu-
       mentation  for  any purpose is hereby granted without fee,
       provided that the above copyright  notice  appear  in  all
       copies  and  that both that copyright notice and this per-
       mission notice appear  in  supporting  documentation.   No
       representations  are  made  about  the suitability of this
       software for any purpose.  It is provided "as is"  without
       express or implied warranty.

AUTHOR
       Joe Keane <jgk@jgk.org>



X Version 11                                      XScreenSaver(r)