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<section id="no-operation">
<span id="noop"></span><h1>No operation<a class="headerlink" href="#no-operation" title="Permalink to this headline">¶</a></h1>
<div class="versionadded">
<p><span class="versionmodified added">New in version 6.1.0.</span></p>
</div>
<p>Pass a coordinate through unchanged.</p>
<table class="docutils align-default">
<colgroup>
<col style="width: 27%" />
<col style="width: 73%" />
</colgroup>
<tbody>
<tr class="row-odd"><td><p><strong>Alias</strong></p></td>
<td><p>noop</p></td>
</tr>
<tr class="row-even"><td><p><strong>Domain</strong></p></td>
<td><p>4D</p></td>
</tr>
<tr class="row-odd"><td><p><strong>Input type</strong></p></td>
<td><p>Any</p></td>
</tr>
<tr class="row-even"><td><p><strong>Output type</strong></p></td>
<td><p>Any</p></td>
</tr>
</tbody>
</table>
<p>The no operation is a dummy operation that returns whatever is passed to it
as seen in this example:</p>
<div class="highlight-none notranslate"><div class="highlight"><pre><span></span>$ echo 12 34 56 78 | cct +proj=noop
12.0000 34.0000 56.0000 78.0000
</pre></div>
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<p>The operation has no options and default options will not affect the output.</p>
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