Provided by: xscreensaver-data-extra_5.11-1ubuntu2_i386 bug

NAME

       halftone - simple halftone pattern of moving mass points

SYNOPSIS

       halftone  [-display  host:display.screen]  [-visual  visual]  [-window]
       [-root] [-count number] [-spacing number] [-sizefactor number]  [-delay
       number]   [-minmass   number]   [-maxmass  number]  [-minspeed  number]
       [-maxspeed number] [-fps]

DESCRIPTION

       Draws the gravity force in each point on  the  screen  seen  through  a
       halftone  dot  pattern.  The  gravity force is calculated from a set of
       moving mass points. View it from a distance for best effect.

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 mass points to move around. Default: 10

       -spacing number
               Distance between each halftone dot. Default: 14

       -sizefactor number
               How big each halftone dot  should  be  drawn  compared  to  the
               spacing value. Default: 1.5

       -minmass number
               The minimum mass of each mass point. Default: 0.001

       -maxmass number
               The maximum mass of each mass point. Default: 0.02

       -minspeed number
               The minimum speed of each mass point. Default: 0.001

       -maxspeed number
               The  maximum  speed  of  each  mass point. Default: 0.02 -delay
               number Per-frame delay, in microseconds.  Default: 10000

       -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 Jaric. 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

       Peter Jaric