his should occur when the network has not already been laid out either by ForceDirectedLayout or some other algorithm.</p>
<p>By default, this function will return true if any node in the network has a NaN position, likely meaning it has not
been positioned yet, or if a large number of nodes in the network in the network overlap. This function can be overriden
to provide custom logic for determining whether a prelayout should be performed.</p>
</div><h4 class="tsd-returns-title">Returns <span class="tsd-sig