hyperball



XScreenSaver(1)                                                XScreenSaver(1)




NAME

       hyperball - 2d projection of a 4d object


SYNOPSIS

       hyperball  [-display  host:display.screen]  [-foreground color] [-back-
       ground 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_MANAGER property.


SEE ALSO

       X(1), xscreensaver(1)


COPYRIGHT

       Copyright © 2000 by Joe Keane.  Permission to use, copy,  modify,  dis-
       tribute,  and  sell this software and its documentation 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(1)

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