Re: [Boost-users] read_graphviz with a simple graph

Did you need the vertex IDs from the Graphviz file?  If so, you will need a "real" property map as node_id (either internal to the graph or an external one).

Hm, but then I won't be able to access the vertices like "normal" (with graph[my_vertex_descriptor]) with the vertex_descriptor corresponding to the vertex ID (in the vecS case), right? That would be pretty awkward - to have to use one method to access nodes if the graph was constructed programmatically, and another if it was read from a file. David