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<H1><A NAME="SECTION001300000000000000000">
Command Line Options</A>
</H1>
<P>
Most of the data reduction functions of <SMALL>GCX </SMALL>are available from the
command line. The program's command-line options are listed below. The
same text can be obtained using <TT>gcx -help</TT>.
<SMALL CLASS="FOOTNOTESIZE"></SMALL><PRE>
load_par_file: cannot open /root/.gcxrc
gcx version 0.9.7
usage: gcx [options] [<fits file> ...]
General options:
-h, --help Print command line options
--help-all Print all the on-line help on stdout
--version Print program version
-D, --debug <level> Set debug level to <level>; 0=quiet, 4=noisy
-o, --output <file_name> Specify output file name for import, convert
and frame operations
-r, --rcfile <params_file> Load parameters file
-S, --set <option>=<value> Set an option overriding the parameters file
-i, --interactive Display frames as they are being processed
Observation scripting, photometry and file conversion options:
-p, --recipe <recipe_file> Load recipe file (searches rcp_path)
-P, --phot-run <recipe_file> Load recipe file and run photometry
in batch mode. Report in native
format.
-V, --phot-run-aavso <recipe_file> Load recipe file and run photometry
in batch mode. Report in AAVSO format.
If <recipe_file> is set to one of the following three special tokens,
the recipe will change depeding on information in the frame header:
_TYHCO_ will create a recipe on-the-fly;
_OBJECT_ will search the recipe path for a file with the same
name as the object in the frame (ending in .rcp);
_AUTO_ will search for a recipe by object name, and if that
is not found, create a tycho one.
--import <catalog name> Convert a tabular catalog file to the gcx
Lisp-like format. Reads stdin.
Current table formats are:
gcvs, gcvs-pos, landolt, henden, sumner
--merge <recipe_file> Merge a new recipe file over the one loaded
with the --recipe option. Checks are made
for either positional or name duplicates.
Only stars brighter than mag_limit are
merged.
--set-target Specify a target object to be merged into a
recipe file. It will also set the recipe
object, ra and dec fields.
--make-tycho-rcp <radius> Create a recipe file for the object specified
with --object using tycho2 stars in a box
radius arcminutes around the object
--rcp-to-aavso <recipe_file> Conevrt a recipe file to the aavso db
(tab-delimited) format
If the file argument is '-', stdin is read
The recipe comment and star comment fields
are interpreted to get some db fields.
see the --help-all for more info
-T, --rep-to-table <report_file> Convert a report file to tabular format
If an output file name is not specified
(with the '-o' argument), stdout is used
If the file argument is '-', stdin is read
-O, --obsfile <obs_file> Load/run obs file (searches obs_path)
-n, --to-pnm Convert a fits file to 8-bit pnm
If an output file name is not specified
(with the '-o' argument), stdout is used
-j, --object Specify a target object (useful for setting
an initial wcs
--mag-limit Set a magnitude limit for the output of
import and merge commands.
CCD Reduction Options
-d, --dark <dark_frame> Set the dark frame / do dark subtraction
-b, --bias <bias_frame> Set the bias frame / do bias subtraction
-f, --flat <flat_frame> Set the flat field frame / flatfield
-G, --gaussian-blur <fwhm > Set blur FWHM / apply Gaussian blur
-a, --align <align_ref_frame> Set the alignment reference frame
/ align frames
-A, --add-bias <bias> Set a constant bias to add to all frames
/ add a bias to frames
-M, --multiply <multiplier> Set a constant to multiply all frames with
/ multiply frames by a scalar
Multiplication is performed before addition.
-u, --update-file Save reduction results back to
the original files
-s, --stack Stack the frames using the method set in
the parameters file; for some methods
additive background alignment is performed
-F, --superflat Stack the frames using an multiplicative
background alignment procedure; the frames
should be dark-substracted
-N, --no-reduce Do not run the reduction operations, just
load the frame list / reduction options
When any of the CCD reduction options is set and the -i flag
is not specified, the reduction operations are run in batch mode
on all the supplied fits files. When no output file is specified
or -i is set, the files are loaded into the batch processing file
list, the reduction options set in the dialog, and the program
starts up in gui mode
</PRE><SMALL CLASS="FOOTNOTESIZE">
</SMALL>
<P>
<BR><HR>
<ADDRESS>
root
2005-11-27
</ADDRESS>
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