aperture - generalized aperture program
aperture parameters
aperture is a generalized aperture program designed to simulate the effects on the incident ray stream of apertures in physical obstructions (such as the X-ray and thermal baffles). It can handle a wide variety of aperture shapes, and has provisions to allow alteration of the rays by the apertures. The philosophy behind aperture is that a geometrically complicated aperture may be modeled by a combination of geometrically simpler apertures. Rather than modeling each complex aperture with a separate program, if a flexible means of specifying the combinations of simple apertures were devised, a single program could model a wide range of shapes.
For more information, see the reference manual.
aperture uses an IRAF-compatible parameter interface.
The following parameters are available:
aperture override='energy=1.49; shell=3'
or it may be the name of a file containing the Lua code. In the
latter, the first character should be the @
character:
aperture override=@code.lua
stdin
,
aperture will read from the standard input stream.
stdout
,
aperture will write to the standard output stream.
The output file is an RDB table containing a column for the name of
the aperture and columns for all possible outcome of the interaction
of the ray with the aperture. The prefix n
and w
(for example
nblocked
and wblocked
) stands for the number and weight
respectively.
Copyright 2006 Smithsonian Astrophysical Observatory
This software is released under the GNU General Public License. You may find a copy at
http://www.fsf.org/copyleft/gpl.html
This documents version 1.0.0 of genphot.
Diab Jerius <djerius@cfa.harvard.edu>
Dan Nguyen
Ivan Stern
David Grumm