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