Provided by: xscreensaver-data-extra_5.08-0ubuntu3_i386 bug
 

NAME

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

SYNOPSIS

        ifs  [-display  host:display.screen] [-visual visual] [-window] [-root]
        [-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.
 
        -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 func-
                tions, 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 func-
                tions.  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.
        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  "Soft-
        ware"),  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 MER-
        CHANTABILITY, 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