halftone(6)                   XScreenSaver manual                  halftone(6)

NAME
       halftone - simple halftone pattern of moving mass points

SYNOPSIS
       halftone [--display host:display.screen] [--visual visual] [--window]
       [--root] [--window-id number] [--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.

       --window-id number
               Draw on the specified 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.

       XSCREENSAVER_WINDOW
               The window ID to use with --root.

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


X Version 11                  6.08 (10-Oct-2023)                   halftone(6)