Provided by: xscreensaver-data-extra_5.36-1ubuntu1_amd64 
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 © 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