mment&quot; and that refer to the <a href="LayoutVertex.html#node" class="tsd-kind-accessor">LayoutVertex.node</a>.
By default this method will not be called unless you set <a href="ForceDirectedLayout.html#comments" class="tsd-kind-accessor">comments</a> to true.</p>
<p>You may want to override this method in order to customize how any
associated objects are found and how a new <a href="ForceDirectedVertex.html" class="tsd-kind-class">ForceDirectedVertex</a>
and <a href="ForceDirectedEdge.html" class="tsd-