xscreensaver(1)

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]

DESCRIPTION

Draws the gravity force in each point on the screen seen
through a halftone dot pattern. The gravity force is cal
culated 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 microsec onds. Default: 10000

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_MAN
AGER 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 docu
mentation 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 per
mission 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 9-oct-2002 XScreenSaver(1)