XScreenSaver

XScreenSaver

NAME SYNOPSIS DESCRIPTION OPTIONS ENVIRONMENT SEE ALSO COPYRIGHT AUTHOR

NAME

grav - draws a simple orbital simulation

SYNOPSIS

grav display.screen''? [-foreground ''color''? [-background ''color''? [-window? [-root? [-mono? [-install? [-visual ''visual''? [-ncolors ''integer''? [-delay ''microseconds''? [-count ''integer''? [-decay? [-no-decay? [-trail? [-no-trail?

DESCRIPTION

The grav program draws a simple orbital simulation

OPTIONS

grav accepts the following options:

-window

Draw on a newly-created window. This is the default.

-root

Draw on the root window.

-mono

If on a color display, pretend we're on a monochrome display.

-install

Install a private colormap for the window.

-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.

-ncolors integer

How many colors should be used (if possible). Default 200. The colors are chosen randomly.

-count integer

Default 12.

-decay

-no-ecay

Whether orbits should decay.

-trail

-no-trail

Whether the objects should leave trails behind them (makes it look vaguely like a cloud-chamber.

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), xlock(1)?

COPYRIGHT

Copyright 1993 by Greg Bowering.

Permission to use, copy, modify, and distribute this software and its documentation for any purpose and without fee is hereby granted, provided that the above copyright notice appear in all copies and that both that copyright notice and this permission notice appear in supporting documentation.

AUTHOR

Greg Bowering

Ability to run standalone or with xscreensaver added by Jamie Zawinski ''