oads, <code>node_id</code> is the name of the property map that
stores the IDs of each node for use in the output (if it is stored in
the <code>dynamic_properties</code> structure); alternatively, one may
provide an arbitrary property map for <code>vertex_id</code> giving the
vertex identifiers. In this case, the name
  of <code>node_id</code> must still be supplied to suppress its
  output as a label of the vertices.</p>

<H3>Where Defined</H3>

<P>
<a href="../../../boost/graph/graphviz.hpp"><TT>boost/gra