NAME

       hydrostat - Wiggly squid or jellyfish with many tentacles.

SYNOPSIS

       hydrostat  [--display  host:display.screen]  [--visual  visual]  [--window] [--root] [--window-id number]
       [--delay  number]  [--speed  number]  [--count  number]  [--head-radius  number]   [--tentacles   number]
       [--thickness  number]  [--length number] [--gravity number] [--current number] [--friction number] [--no-
       pulse] [--wireframe] [--fps]

DESCRIPTION

       Wiggly squid or jellyfish with many tentacles.  A muscular hydrostat is a biological  structure  used  to
       move  its  host about, consisting of muscles with no skeletal support. It performs its hydraulic movement
       without fluid in a separate compartment, as in a hydrostatic skeleton.

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.

       --delay number
               Per-frame delay, in microseconds.  Default: 20000 (0.02 seconds).

       --speed number
               Animation speed.  2.0 means twice as fast, 0.5 means half as fast.

       --count number
               Number of squid.  1 - 100.  Default: 10.

       --head-radius number
               Head size.  10 - 100.  Default: 60.

       --tentacles number
               Number of tentacles.  3 - 100.  Default: 40.

       --thickness number
               Thickness of tentacles.  3 - 40.  Default: 18.

       --length number
               Length of tentacles.  10 - 150.  Default: 70.

       --gravity number
               Strength of gravity.  0 - 10.0.  Default: 0.5.

       --current number
               Strength of current.  0.0 - 10.0.  Default: 0.25.

       --friction number
               Coefficient of friction.  0.0 - 0.1.  Default: 0.02.

       --pulse | --no-pulse
               Whether the squid should pulse. Default true.

       --wireframe | --no-wireframe
               Render in wireframe instead of solid.

       --fps | --no-fps
               Whether to show a frames-per-second display at the bottom of the screen.

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)

COPYRIGHT

       Copyright © 2016 by Justin Windle and Jamie Zawinski.  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

       Justin Windle and Jamie Zawinski.