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<section id="using-proj">
<span id="usage"></span><h1>Using PROJ<a class="headerlink" href="#using-proj" title="Permalink to this headline">¶</a></h1>
<p>The main purpose of PROJ is to transform coordinates from one coordinate
reference system to another. This can be achieved either with the included
command line applications or the C API that is a part of the software package.</p>
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