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


        halftone - simple halftone pattern of moving mass points


        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]


        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.


        -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
        -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 spac-
                ing 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 num-
                ber Per-frame delay, in microseconds.  Default: 10000
        -fps    Display the current frame rate and CPU load.


        DISPLAY to get the default host and display number.
                to get the name of a resource file that  overrides  the  global
                resources stored in the RESOURCE_MANAGER property.
        X(1), xscreensaver(1)


        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 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.


        Peter Jaric