DISPLAY
to get the default host and display number.
grav1
Draws a simple orbital simulation
Usage
grav [-display
host:display.screen]
[-foreground
color]
[-background
color]
[-window]
[-root]
[-mono]
[-install]
[-visual
visual]
[-ncolors
integer]
[-delay
microseconds]
[-count
integer]
[-decay]
[-no-decay]
[-trail]
[-no-trail]
Overview
The grav program draws a simple orbital simulation
Options
grav accepts the following options:
-
-window -
Draw on a newly-created window. This is the default.
-
-root -
Draw on the root 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 are chosen randomly.
-
-count integer -
Default 12.
-
-decay
-
-no-ecay -
Whether orbits should decay.
-
-trail
-
-no-trail -
Whether the objects should leave trails behind them (makes it look vaguely like a cloud-chamber.
Environment
-
XENVIRONMENT -
to get the name of a resource file that overrides the global resources stored in the RESOURCE_MANAGER property.
Releases
4 releases since Debian 2.0 (Hamm); the text changed 2 times.