NAME

       piecewise - lots of moving circles intersecting in interesting ways.

SYNOPSIS

       piecewise   [--display   host:display.screen]   [--visual   visual]   [--window]  [--root]
       [--window-id number] [--delay number] [--count number]  [--ncolors  number]  [--colorspeed
       number] [--minradius number] [--maxradius number] [--no-db] [--fps]

DESCRIPTION

       This  draws  a  bunch  of moving circles which switch from visibility to invisibility when
       they intersect.

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.

       --window-id number
               Draw on the specified window.

       --delay number
               Per-frame delay, in microseconds.  Default: 5000 (0.01 seconds.).

       --count number
               Number of circles.  Default: 32.

       --ncolors number
               Number of colors, only one of which is used at a time.  Default: 256.

       --colorspeed number
               How fast the color changes (0 - 100).  Default: 10.

       --minradius number
               Minimum circle radius (as a proportion of screen height). Default: 0.05.

       --maxradius number
               Maximum circle radius (as a proportion of screen height). Default: 0.2.

       --db | --no-db
               Whether to double buffer.

       --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.

       XSCREENSAVER_WINDOW
               The window ID to use with --root.

SEE ALSO

       X(1), xscreensaver(1)

COPYRIGHT

       Copyright © 2003 by Geoffrey Irving.  Permission to use,  copy,  modify,  distribute,  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 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

       Geoffrey Irving.