It doesn't work with a filtered_graph. Adding the following line:
boost::property_map<filtered_grid, boost::vertex_index_t>::const_type fpm = get(boost::vertex_index, m_barrier_grid);
produces this error:
g++ -g -I/src/boost-trunk -Wall -Werror -O3 -c -o astar_maze.o astar_maze.cpp /src/boost-trunk/boost/graph/graph_traits.hpp: In instantiation of ‘boost::vertex_property_type<grid>’: /src/boost-trunk/boost/graph/filtered_graph.hpp:226: instantiated from ‘boost::vertex_property_type<filtered_grid>’ /src/boost-trunk/boost/graph/properties.hpp:202: instantiated from ‘boost::detail::vertex_property_map<filtered_grid, boost::vertex_index_t>’ /src/boost-trunk/boost/graph/properties.hpp:251: instantiated from ‘boost::property_map<filtered_grid, boost::vertex_index_t>’ astar_maze.cpp:234: instantiated from here /src/boost-trunk/boost/graph/graph_traits.hpp:226: error: no type named ‘vertex_property_type’ in ‘class grid’
Which is the same error I was seeing before inside the astar_search call.
Could you please try this code and the astar_search call with r64035 from the trunk? -- Jeremiah Willcock