On Wed, Jul 14, 2010 at 3:16 PM, Jeremiah Willcock <jewillco@osl.iu.edu>wrote:
On Wed, 14 Jul 2010, W.P. McNeill wrote:
I verified the documentation changes for grid graph indexing calls and A*
visitors. Looks good. Now doing edge weights with a static_property_map<>.
OK.
I've duplicated relevant information from the README at the top of
maze.cpp, so README doesn't need to be included in the Boost examples.
I found that I have to implement my own vertex index map, though I'm not sure exactly why. If I remove all my vertex index map code and call A* with the default map like so:
astar_search(m_barrier_grid, source(), heuristic, boost::weight_map(weight). predecessor_map(pred_pmap). distance_map(dist_pmap). visitor(visitor) );
I get the following error:
(snip)
That is a bug in astar_search(). Please try with the latest Boost trunk and see if it works. I also added named parameters to astar_search_no_init().
Change r64024 looks like it introduced a regression. I now get the following build error in astar-maze that wasn't there before:
g++ -g -I/src/boost-trunk -Wall -Werror -O3 -c -o astar_maze.o astar_maze.cpp /src/boost-trunk/boost/graph/astar_search.hpp: In function ‘void boost::astar_search(const VertexListGraph&, typename boost::graph_traits<G>::vertex_descriptor, AStarHeuristic, const boost::bgl_named_params<P, T, R>&) [with VertexListGraph = filtered_grid, AStarHeuristic = euclidean_heuristic, P = astar_goal_visitor, T = boost::graph_visitor_t, R = boost::bgl_named_params<boost::associative_property_map<maze::solve()::dist_map>, boost::vertex_distance_t, boost::bgl_named_params<boost::associative_property_map<maze::solve()::pred_map>, boost::vertex_predecessor_t, boost::bgl_named_params<vertex_index_pmap, boost::vertex_index_t, boost::bgl_named_params<maze::solve()::edge_weight_pmap, boost::edge_weight_t, boost::no_property> > > >]’: astar_maze.cpp:242: instantiated from here /src/boost-trunk/boost/graph/astar_search.hpp:329: error: ‘override_const_property’ was not declared in this scope make: *** [astar_maze.o] Error 1 As a wild guess I tried building with detail::override_const_property but got the same error.
I was surprised by this because I expected the filtered graph to inherit
the grid graph's vertex index map like you describe.
That is what it should do.
-- Jeremiah Willcock _______________________________________________ Boost-users mailing list Boost-users@lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users