NAME

       splitflap - a simulation of a split-flap electromechanical display.

SYNOPSIS

       splitflap   [--display   host:display.screen]   [--visual   visual]   [--window]  [--root]
       [--window-id number] [--delay microseconds] [--speed float]  [--width  columns]  [--height
       rows]  [--mode text | clock12 | clock24] [--no-wander] [--spin axes] [--no-spin] [--front]
       [--no-front] [--wireframe] [--fps]

DESCRIPTION

       Simulates a split-flap display, an old style of electromechanical sign as seen in airports
       and train stations, and commonly used in alarm clocks in the 1960s and 1970s.

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.

       --width number
               Columns of the display.  Default: 22.

       --height number
               Rows of the display. Default: 8.

       --mode clock12
               Display a 12-hour clock.

       --mode clock24
               Display a 24-hour clock.

       --front | --no-front
               When spinning, never spin all the way around or upside down:  always  face  mostly
               forward so that the text is easily readable.  This is the default.

       --no-front
               Allow spins to go all the way around or upside down.

       --wander | --no-wander
               Whether the object should wander around the screen.

       --spin  Which  axes  around  which  the  text  should spin.  The default is "XYZ", meaning
               rotate it freely in space.  "--spin Z" would rotate the text in the plane  of  the
               screen while not rotating it into or out of the screen; etc.

       --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 © 2015 by 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

       Jamie Zawinski.