Hi, The example in http://www.boost.org/libs/graph/example/graphviz.cpp gives a hint how to use edge properties and vertex properties with dynamic properties when writing out the dot file. However, I would like to write out also graph properties, i.e. I have get_property(g, graph_overlap_t()) = "false"; dynamic_properties dp; dp.property("overlap", ?); dp.property("node_id", get(vertex_name_t(), g)); dp.property("strength", get(edge_strength_t(), g)); Thanks in advance for any help. Kind regards, Martin Palkovic