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.