ifs(6) XScreenSaver manual ifs(6)

NAME

ifs - draws spinning, colliding iterated-function-system images

SYNOPSIS

ifs [--display host:display.screen] [--visual visual] [--window]
[--root] [--window-id number] [--no-db] [--delay number] [--detail
number] [--colors number] [--functions number] [--iterate |
--recurse] [--no-rotate] [--no-scale] [--no-translate] [--fps]

DESCRIPTION

The ifs program draws spinning, colliding iterated-function-system
images.

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.

--no-db Disable double-buffering.

--delay number
Per-frame delay, in microseconds. Default: 20000

--colors number
Number of colours to use. Default: 200

--detail number
In --iterate mode, number of times to randomly iterate the
functions, in thousands. In --recurse mode, number of times
to apply functions (recursion depth) before drawing each
point. Default: 9

--functions number
Number of functions to be iterated. Default: 3

--iterate
Calculate by iteratively applying the functions in a random
order, usually faster than --recurse. This is the default.

--recurse
Calculate by recursively applying all combinations of the
functions. This is the historical behavior and may produce
neater output than --iterate.

--no-rotate
Disable the rotation component of the functions.

--no-scale
Disable the scaling component of the functions.

--no-translate
Disable the varying translation component of the functions.

--no-multi
Turn off multi-coloured mode, only one colour is used to
colour the whole set.

--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), ifs(6)

COPYRIGHT

Copyright (C) Chris Le Sueur and Robby Griffin, 2005-2006

Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:

The above copyright notice and this permission notice shall be
included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
NONINFRINGEMENT. IN NO EVENT SHALL THE X CONSORTIUM BE LIABLE FOR
ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

AUTHOR

This version by Chris Le Sueur <thefishface@gmail.com>, Feb 2005 Many
improvements by Robby Griffin <rmg@terc.edu>, Mar 2006

X Version 11 6.09 (07-Jun-2024) ifs(6)