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<li><a class="reference internal" href="#">The fors_extract_objects recipe</a><ul>
<li><a class="reference internal" href="#synopsis">Synopsis</a></li>
<li><a class="reference internal" href="#description">Description</a><ul>
<li><a class="reference internal" href="#input-files">Input files</a></li>
<li><a class="reference internal" href="#output-files">Output files</a></li>
</ul>
</li>
<li><a class="reference internal" href="#constructor">Constructor</a></li>
<li><a class="reference internal" href="#parameters">Parameters</a></li>
<li><a class="reference internal" href="#bug-reports">Bug reports</a></li>
<li><a class="reference internal" href="#copyright">Copyright</a></li>
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<div class="section" id="the-fors-extract-objects-recipe">
<h1>The fors_extract_objects recipe<a class="headerlink" href="#the-fors-extract-objects-recipe" title="Permalink to this headline">¶</a></h1>
<dl class="data">
<dt id="fors_extract_objects">
<tt class="descname">fors_extract_objects</tt><a class="headerlink" href="#fors_extract_objects" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>
<div class="section" id="synopsis">
<h2>Synopsis<a class="headerlink" href="#synopsis" title="Permalink to this headline">¶</a></h2>
<p>Extract objects in slit spectra</p>
</div>
<div class="section" id="description">
<h2>Description<a class="headerlink" href="#description" title="Permalink to this headline">¶</a></h2>
<p>This recipe is used to extract scientific objects spectra on a resampled
image produced with recipe fors_resample, at the positions listed in the
object table produced by recipe fors_detect_objects. Please refer to the
FORS Pipeline User’s Manual for more details on object extraction.</p>
<p>In the table below the MXU acronym can be alternatively read as MOS and
LSS, and SCI as STD.</p>
<div class="section" id="input-files">
<h3>Input files<a class="headerlink" href="#input-files" title="Permalink to this headline">¶</a></h3>
<div class="highlight-python"><pre>DO category: Type: Explanation: Required:
MAPPED_SCI_MXU Calib Resampled slit spectra Y
MAPPED_SKY_SCI_MXU Calib Resampled sky spectra Y
OBJECT_TABLE_SCI_MXU Calib Object table Y</pre>
</div>
</div>
<div class="section" id="output-files">
<h3>Output files<a class="headerlink" href="#output-files" title="Permalink to this headline">¶</a></h3>
<div class="highlight-python"><pre>DO category: Data type: Explanation:
REDUCED_SCI_MXU FITS image Extracted object spectra
REDUCED_SKY_SCI_MXU FITS image Extracted sky spectra
REDUCED_ERROR_SCI_MXU FITS image Error on extracted spectra</pre>
</div>
</div>
</div>
<div class="section" id="constructor">
<h2>Constructor<a class="headerlink" href="#constructor" title="Permalink to this headline">¶</a></h2>
<dl class="method">
<dt>
<tt class="descclassname">cpl.</tt><tt class="descname">Recipe</tt><big>(</big><em>"fors_extract_objects"</em><big>)</big></dt>
<dd><p>Create an object for the recipe fors_extract_objects.</p>
</dd></dl>
<div class="highlight-python"><div class="highlight"><pre><span class="kn">import</span> <span class="nn">cpl</span>
<span class="n">fors_extract_objects</span> <span class="o">=</span> <span class="n">cpl</span><span class="o">.</span><span class="n">Recipe</span><span class="p">(</span><span class="s">"fors_extract_objects"</span><span class="p">)</span>
</pre></div>
</div>
</div>
<div class="section" id="parameters">
<h2>Parameters<a class="headerlink" href="#parameters" title="Permalink to this headline">¶</a></h2>
<dl class="attribute">
<dt id="fors_extract_objects.param.ext_mode">
<tt class="descclassname">fors_extract_objects.param.</tt><tt class="descname">ext_mode</tt><a class="headerlink" href="#fors_extract_objects.param.ext_mode" title="Permalink to this definition">¶</a></dt>
<dd><p>Object extraction method: 0 = aperture, 1 = Horne optimal extraction (long; default: 1) [default=1].</p>
</dd></dl>
<p>The following code snippet shows the default settings for the available
parameters.</p>
<div class="highlight-python"><div class="highlight"><pre><span class="kn">import</span> <span class="nn">cpl</span>
<span class="n">fors_extract_objects</span> <span class="o">=</span> <span class="n">cpl</span><span class="o">.</span><span class="n">Recipe</span><span class="p">(</span><span class="s">"fors_extract_objects"</span><span class="p">)</span>
<span class="n">fors_extract_objects</span><span class="o">.</span><span class="n">param</span><span class="o">.</span><span class="n">ext_mode</span> <span class="o">=</span> <span class="mi">1</span>
</pre></div>
</div>
<p>You may also set or overwrite some or all parameters by the recipe
parameter <cite>param</cite>, as shown in the following example:</p>
<div class="highlight-python"><div class="highlight"><pre><span class="kn">import</span> <span class="nn">cpl</span>
<span class="n">fors_extract_objects</span> <span class="o">=</span> <span class="n">cpl</span><span class="o">.</span><span class="n">Recipe</span><span class="p">(</span><span class="s">"fors_extract_objects"</span><span class="p">)</span>
<span class="p">[</span><span class="o">...</span><span class="p">]</span>
<span class="n">res</span> <span class="o">=</span> <span class="n">fors_extract_objects</span><span class="p">(</span> <span class="o">...</span><span class="p">,</span> <span class="n">param</span> <span class="o">=</span> <span class="p">{</span><span class="s">"ext_mode"</span><span class="p">:</span><span class="mi">1</span><span class="p">})</span>
</pre></div>
</div>
<div class="admonition seealso">
<p class="first admonition-title">See also</p>
<p class="last"><a class="reference external" href="http://packages.python.org/python-cpl/recipe.html">cpl.Recipe</a>
for more information about the recipe object.</p>
</div>
</div>
<div class="section" id="bug-reports">
<h2>Bug reports<a class="headerlink" href="#bug-reports" title="Permalink to this headline">¶</a></h2>
<p>Please report any problems to <a class="reference external" href="mailto:usd-help%40eso.org">Carlo Izzo</a>. Alternatively, you may
send a report to the <a class="reference external" href="mailto:usd-help%40eso.org">ESO User Support Department</a>.</p>
</div>
<div class="section" id="copyright">
<h2>Copyright<a class="headerlink" href="#copyright" title="Permalink to this headline">¶</a></h2>
<p>This file is currently part of the FORS Instrument Pipeline
Copyright (C) 2002-2010 European Southern Observatory</p>
<p>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.</p>
<p>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.</p>
<p>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</p>
<p><em>Code author: Carlo Izzo <<a class="reference external" href="mailto:usd-help%40eso.org">usd-help<span>@</span>eso<span>.</span>org</a>></em></p>
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