Re: [Boost-users] boost::filtered_graph filtering on vertex color... if I only had a colormap

//not working depth_first_search(ee_archi, vis, boost::make_assoc_property_map(vis.vertex_coloring),0);

The visitor is passed to depth_first_search by value, and hence a copy of vis is made and you are then working on two colormaps. You need to change your visitor to have reference semantics so that a copy of the visitor still points to the same color_map. This should work: struct my_vis : default_dfs_visitor { using colormap = boost::associative_property_map >; colormap vertex_coloring; };