Provided by: xscreensaver-data-extra_5.08-0ubuntu3_i386 bug
 

NAME

        piecewise - lots of moving circles intersecting in interesting ways.
 

SYNOPSIS

        piecewise  [-display  host:display.screen]  [-visual  visual] [-window]
        [-root] [-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.
 
        -delay number
                Per-frame delay, in microseconds.   Default:  5000  (0.01  sec-
                onds.).
 
        -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.
        X(1), xscreensaver(1)
 

COPYRIGHT

        Copyright  (C)  2003 by Geoffrey Irving.  Permission to use, copy, mod-
        ify, distribute, and sell this software and its documentation  for  any
        purpose  is  hereby  granted without fee, provided that the above copy-
        right notice appear in all copies and that both that  copyright  notice
        and this permission notice appear in supporting documentation.  No rep-
        resentations are made about the suitability of this  software  for  any
        purpose.  It is provided "as is" without express or implied warranty.
 

AUTHOR

        Geoffrey Irving.