DISPLAY
to get the default host and display number.
Draw real plane fractals
hopalong [--display
host:display.screen]
[--foreground
color]
[--background
color]
[--window]
[--root]
[--window-id
number]
[--mono]
[--install]
[--visual
visual]
[--ncolors
integer]
[--delay
microseconds]
[--cycles
integer]
[--count
integer]
[--jong]
[--no-jong]
[--jong]
[--no-sine]
The hop program generates real plane fractals as described in the September 1986 issue of Scientific American.
hopalong accepts the following options:
--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.
--mono
If on a color display, pretend we're on a monochrome display.
--install
Install a private colormap for the window.
--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.
--ncolors integer
How many colors should be used (if possible). Default 200. The colors used cycle through the hue, making N stops around the color wheel.
--cycles integer
How long to run each batch. Default 2500 pixels.
--count integer
How many pixels should be drawn before a color change. Default 1000.
--jong integer
--no-jong integer
Whether to use the Jong format (default is to choose randomly.)
--sine integer
--no-sine integer
Whether to use the Sine format (default is to choose randomly.)
--fps
Display the current frame rate and CPU load.
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.