GALAXY(6) GALAXY(6)
NAME
galaxy - representations of n-body simulations
DESCRIPTION
Files of this format are interpreted by galaxy(1) as
describing the inital condition of n-body simulations or the
saved state of simulation in progress. A galaxy file is a
UTF stream of instruction lines. The instruction is given by
the first space delimited word. The following instructions
are accepted.
MKBODY
The rest of the line must contain 5 white space delim-
ited double-precision floating point numbers. They rep-
resent a body's x coordinate, y coordinate, x velocity
component, y velocity component, and size respectively.
ORIG The rest of the line must contain 2 white space delim-
ited double-precision floating point numbers. They rep-
resent the current location of the origin with respect
to the view window of galaxy(1).
DT The rest of the line must contain a double-precision
floating point number which determines the time-scale
of the simulation.
SCALE
The rest of the line must contain a double-precision
floating point number which determines the scale of the
view of the simulation.
GRAV The rest of the line must contain a double-precision
floating point number which determines the gravita-
tional constant of the simulation.
SEE ALSO
galaxy(1)
Page 1 Plan 9 (printed 12/21/24)