[boost] Properties within planar graph face traversal visitor

Hello, I'm using the recent planar utilities of the boost graph library. The planarity test works quite well and now I'm wondering what would be the most elegant way for accessing to bundled edge properties within a planar_face_traversal_visitor. As far as I can see, contrary to the other visitors (BFS, DFS, etc) only the vertex or the edge (not the graph) are arguments in the next_vertex or next_edge event points... thanks, Vicen