The test_hough recipe
===============================================================

.. data:: test_hough

Synopsis
--------

Test Hough transform on any table of points

Description
-----------

This recipe is used to test the Hough transformation on any table.


Input files
^^^^^^^^^^^^
::

  DO category:      Type:       Explanation:
  TABLE             Raw         Table with at least 2 numerical columns.


Output files
^^^^^^^^^^^^
::

  DO category:      Data type:  Explanation:
  TRANSFORMED       FITS table  Table with estimates.



Constructor
-----------

.. method:: cpl.Recipe("test_hough")
   :noindex:

   Create an object for the recipe test_hough.

::

   import cpl
   test_hough = cpl.Recipe("test_hough")

Parameters
----------

.. py:attribute:: test_hough.param.xcolumn

    Table column with x coordinate (str; default: '0') [default="0"].
.. py:attribute:: test_hough.param.ycolumn

    Table column with y coordinate (str; default: '0') [default="0"].


The following code snippet shows the default settings for the available 
parameters.

::

   import cpl
   test_hough = cpl.Recipe("test_hough")

   test_hough.param.xcolumn = "0"
   test_hough.param.ycolumn = "0"


You may also set or overwrite some or all parameters by the recipe 
parameter `param`, as shown in the following example:

::

   import cpl
   test_hough = cpl.Recipe("test_hough")
   [...]
   res = test_hough( ..., param = {"xcolumn":"0", "ycolumn":"0"})


.. seealso:: `cpl.Recipe <http://packages.python.org/python-cpl/recipe.html>`_
   for more information about the recipe object.

Bug reports
-----------

Please report any problems to `Carlo Izzo <usd-help@eso.org>`_. Alternatively, you may 
send a report to the `ESO User Support Department <usd-help@eso.org>`_.

Copyright
---------

This file is currently part of the FORS Instrument Pipeline
Copyright (C) 2002-2010 European Southern Observatory

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA


.. codeauthor:: Carlo Izzo <usd-help@eso.org>
