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.