Re: [Boost-users] Iterating over vertices in a specific region in a graph

If you use a filtered_graph on top of the grid_graph, the trick I mentioned above will work, but you'd want to check the filter condition on the coordinates before using them in the filtered_graph.

Thanks, I didn't know about filtered_graph. The example here http://www.boost.org/doc/libs/1_48_0/libs/graph/doc/filtered_graph.html shows how to filter edges - I made this example to show how to filter vertices by their vertex_descriptor: http://programmingexamples.net/wiki/CPP/Boost/BGL/FilteredGraph David