ontains population
parameters such as name, time of appearance in the simulation, parent
population (if any), and its spatial parameters such as map and spatial
boundary.</p>
    </div>

    <div class="section level2">
    <h2 id="ref-examples">Examples<a class="anchor" aria-label="anchor" href="#ref-examples"></a></h2>
    <div class="sourceCode"><pre class="sourceCode r"><code><span class="r-in"><span><span class="co"># spatial definitions -----------------------------------------------------</span></spa