NAME

       xball - bounce balls on the screen

SYNOPSIS

       xball  [ -help -delay delay -gravity percent-gravity -elasticity percent-elasticity -itemWidth ball-width
       -itemHeight ball-height -collide -perpetual -haltSim -demoFile demo-file -rgbTxt rgb.txt-file ] [XToolkit
       options]

DESCRIPTION

       XBall allows the user to create 3-d shaded balls, or to write and run demo which  create  and  manipulate
       the  balls  in  various  ways.  Documentation is included on-line via the Help menu and is not reproduced
       here.

OPTIONS

       Run xball -help for a description of the command line options

DEMOS

       Several demo files are included with the distribution.  To run all the demos, run 'run_demos'.

RESOURCES

       Most resources are available for user modification.  See the  XBall  app-defaults  file  for  a  complete
       listing of widgets,

       Following is a list of the most useful resources:

              XBall*canvas.width, height
                 The default width and height of the window in which balls bounce in.

              XBall.delay
                 The  amount  to slow the simulation, in case the computer is too fast.  A reasonable range is 0
                 to 200.

              XBall.itemWidth, itemHeight
                 The default width and height of the balls.

              XBall.collide
                 If true, balls are colliding on startup.

              XBall.perpetual
                 If true, balls are perpetual on startup.

              XBall.haltSim
                 If true, simulation is halted on startup.

              XBall.demoFile
                 Specified the file to run as a demo on startup.

              XBall.rgbTxt
                 Specified the file to load for the colors.  The default file is /etc/X11/rgb.txt

FILES

       /etc/X11/rgb.txt X11 color names and values.

AUTHOR

       David Nedde (daven@ivy.wpi.edu).
       Packaged for the Debian project by Stephen Birch <sgbirch@imsmail.org>.

COPYRIGHT

       Copyright 1991, 1993 David Nedde.
       Permission to use, copy, modify, and distribute this software and its documentation for any  purpose  and
       without  fee  provided  that  the  above  copyright notice appears in all copies.  It is provided "as is"
       without express or implied warranty.

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