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.. File Using.rst
Chiara Marmo
committed
.. _using-sextractor:
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|SExtractor| is run from the shell with the following syntax:
.. code-block:: console
$ sex Image1 [Image2] -c configuration-file [-Parameter1 Value1 -Parameter2 Value2 ...]
The parts enclosed within brackets are optional.
Any `-Parameter Value` statement in the command-line overrides the corresponding definition in the configuration-file or any default value (see below).
Output files
------------
Diagnostic files
~~~~~~~~~~~~~~~~
Two types of files can be generated by |SExtractor|, providing diagnostics
about the source extraction process:
* "Check-images" are FITS files containing raster images such as maps of the
background model, apertures, etc.. The configuration parameters
``CHECKIMAGE_TYPE`` and ``CHECKIMAGE_NAME`` allow the user to provide a list
of check-image types and file names, respectively, to be produced by
|SExtractor|. A complete list of available check-image types is given in
§[chap:paramlist].
* An |XML|_ file providing a processing summary and various statistics in
|VOTable|_ format is written if the ``WRITE_XML`` switch is set to ``Y``
(the default). The ``XML_NAME`` parameter can be used to change the default
file name :file:`sex.xml`. The |XML| file can be displayed with any recent
web browser; the |XSLT| stylesheet installed together with |SExtractor| will
automatically translate it into a dynamic, user-friendly web-page.
For more advanced usages (e.g., access from a
remote web server), alternative |XSLT| translation URLs may be specified
using the ``XSL_URL`` configuration parameter.