splitflap - Man Page

a simulation of a split-flap electromechanical display.


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]


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.  


--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.


Draw on a newly-created window.  This is the default.


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.


Allow spins to go all the way around or upside down.

--wander | --no-wander

Whether the object should wander around the screen.


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.



to get the default host and display number.


to get the name of a resource file that overrides the global resources stored in the RESOURCE_MANAGER property.


The window ID to use with --root.

See Also

X(1), xscreensaver(1)


Jamie Zawinski.


6.08-2.fc40 (27-Jan-2024) X Version 11 XScreenSaver manual