tum.
<ul>
<li>This is a standard way to describe projections, but it is not always easy to read or understand.</li>
</ul></li>
<li><code>epsg</code> is an <em>integer ID</em> for a known CRS that can be resolved into a <code>proj4string</code>.
<ul>
<li>This is somewhat equivalent to the idea that a 6-digit FIP code can be resolved to a state/county pair</li>
</ul></li>
</ul>
</div>
</section>
<section id="transform-and-retrive" class="slide level2">
<h2>Transform and retrive</h2>
<div class="cell">
<div cl