On Mon, 25 Apr 2011, Allan Nielsen wrote:
Hi
The write_graphviz function requires a vertex_index map, which is not provided by default by graphs with listS as the vertex container. You can add that property explicitly to a listS graph, and fill it in before the write_graphviz call (after any changes to the graph vertices).
Thanks.... But it is not clear to me how to do this (sorry, i'am quite new to BGL)
If I would just like to use the vertes_descriptor pointers as lables, what would that look like??
Try something like this (not tested): #include <boost/lexical_cast.hpp> struct vertex_desc_node_id_map { template <typename T> friend std::string get(const vertex_desc_node_id_map&, const T& x) { return boost::lexical_cast<std::string>(x); } }; namespace boost { template <> struct property_traits<vertex_desc_node_id_map> { typedef std::string value_type; typedef std::string& reference; typedef void key_type; typedef readable_property_map_tag category; }; } and then add 'dp.property("node_id", vertex_desc_node_id_map());' (where "dp" is your dynamic_properties object) before calling write_graphviz_dp.
Do you know about an example I could look at??
No, I don't. -- Jeremiah Willcock