ertex.html#isFixed" class="tsd-kind-accessor">ForceDirectedVertex.isFixed</a>.
Please read the Introduction page on <a href="../../intro/extensions.html">Extensions</a> for how to override methods and how to call this base method.</p>
</div><div class="tsd-parameters"><h4 class="tsd-parameters-title">Parameters</h4><ul class="tsd-parameter-list"><li><h5><span class="tsd-kind-parameter">v</span>: <a href="ForceDirectedVertex.html" class="tsd-signature-type tsd-kind-class">ForceDirectedVertex</a></h5></li></u