xball(6x) [debian man page]

XBALL(6x)																 XBALL(6x)

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.  Documen-
       tation is included on-line via the Help menu and is not reproduced here.

OPTIONS

       Run xball -help for a decription 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.

								      1/5/93								 XBALL(6x)

fluidballs(6x)							XScreenSaver manual						    fluidballs(6x)

NAME

       fluidballs - the physics of bouncing balls.

SYNOPSIS

       fluidballs  [-display  host:display.screen] [-visual visual] [-window] [-root] [-count number] [-size number] [-gravity number] [-wind num-
       ber] [-elasticity number] [-delay number] [-nonrandom] [-no-shake] [-fps]

DESCRIPTION

       Models the physics of bouncing balls, or of particles in a gas or fluid, depending on the settings. If "Shake Box" is selected, then  every
       now and then, the box will be rotated, changing which direction is down (in order to keep the settled balls in motion.)

OPTIONS

       -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.

       -window Draw on a newly-created window.	This is the default.

       -root   Draw on the root window.

       -count number
	       How many balls to display.  Default: 300.

       -size number
	       Maximum size of each ball.  Default: 25.

       -gravity number
	       Coefficient of gravity.	Useful values are < 0.1.  Default: 0.01.

       -wind number
	       Wind.  Useful values are < 0.1.	Default: 0.00.

       -elasticity number
	       Coefficient of elasticity.  Useful values are 0.2 to 1.0.  Default: 0.97.  Lower numbers make less bouncy balls.

       -delay number
	       Per-frame delay, in microseconds.  Default: 10000 (0.01 seconds.).

       -nonrandom
	       Make all balls be the same size.

       -no-nonrandom
	       Make the balls be random sizes.	Default.

       -shake | -no-shake
	       Whether to shake the box if the system seems to have settled down.  "Shake" means "change the direction of Down."

       -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)

COPYRIGHT

       Copyright  (C) 2002 by Peter Birtles and Jamie Zawinski.  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 permission 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

       Peter Birtles, Jamie Zawinski, and Steven Barker.

X Version 11							5.15 (28-Sep-2011)						    fluidballs(6x)