Hi all,
I think I've got a problem with the way I use the weight property map in my
betweenness_centrality (and maybe other locations too).
I've got a graph like that:
typedef boost::property EdgeWeightProperty;
typedef boost::adjacency_list unGraph;
And I add edges with weights like that (simplified):
EdgeWeightProperty weight = getWeight(a, b); // 0f ... 2.0f
std::pair e = boost::add_edge(a, b,
weight, m_ugraph);
Than I try to do the brandes_centrality_betweenness:
std::vector< double > v_centrality_vec(boost::num_vertices(m_ugraph), 0.0);
boost::brandes_betweenness_centrality(m_ugraph ,
boost::centrality_map(boost::make_iterator_property_map(v_centrality_vec.begin(),boost::get(boost::vertex_index,
m_ugraph),double())).vertex_index_map(get(boost::vertex_index,
m_ugraph)).weight_map(get(boost::edge_weight, m_ugraph)) );
But I get crazy results...
1) I have checked by hand that my "getWeight" (my weights) are OK.
2) I have set _ALL_ weights to 1.0 (almost as if brandes was using BFS
internally), Again I get the _SAME_ crazy results!
So there is something wrong with the way Im using the weight_map.
What am I missing??
Best,
Tasos
