Thanks Jeremiah, I've now got something that compiles and runs, but still doesn't include 'subgraph' clauses in the dot output and corresponding rectangles when rendered. Interestingly if I now change back to write_graphviz(ofs, G0) I do get some subgraph clauses, but the names are messed up presumably since they're now being set up using dynamic properties. Also the subgraphs still don't render in this case. Thanks, Chris #include <boost/graph/graphviz.hpp> #include <boost/graph/subgraph.hpp> #include <boost/graph/adjacency_list.hpp> #include <string> #include <sstream> using namespace boost; using namespace std; int main() { // Vertex properties typedef property<vertex_name_t, std::string, property<vertex_color_t, float> > vertex_p; // Edge properties //typedef property<edge_weight_t, double> edge_p; typedef property<edge_index_t, int> edge_p; // Graph properties typedef property<graph_name_t, std::string> graph_p; // adjacency_list-based type typedef subgraph< adjacency_list<vecS, vecS, directedS, vertex_p, edge_p, graph_p> > graph_t; // Construct an empty graph and prepare the dynamic_property_maps. graph_t G0(6); enum {A, B, C, D, E, F}; dynamic_properties dp; property_map<graph_t, vertex_name_t>::type name = get(vertex_name, G0); dp.property("node_id", name); name[A] = "A"; name[B] = "B"; name[C] = "C"; name[D] = "D"; name[E] = "E"; name[F] = "F"; graph_t& G1 = G0.create_subgraph(); enum {A1, B1, C1}; add_vertex(C, G1); // global vertex C becomes local A1 for G1 add_vertex(E, G1); // global vertex E becomes local B1 for G1 add_vertex(F, G1); // global vertex F becomes local C1 for G1 property_map<graph_t, vertex_name_t>::type name1 = get(vertex_name_t(), G1); name1[A1] = "A1"; name1[B1] = "B1"; name1[C1] = "C1"; graph_t& G2 = G0.create_subgraph(); enum {A2, B2}; add_vertex(A, G2); // global vertex A becomes local A2 for G2 add_vertex(C, G2); // global vertex C becomes local B2 for G2 property_map<graph_t, vertex_name_t>::type name2 = get(vertex_name_t(), G2); name2[A2] = "A2"; name2[B2] = "B2"; add_edge(A, B, G0); add_edge(B, C, G0); add_edge(B, D, G0); add_edge(E, B, G0); add_edge(E, F, G0); add_edge(F, D, G0); property_map<graph_t, vertex_color_t>::type mass = get(vertex_color, G0); dp.property("mass", mass); property_map<graph_t, edge_index_t>::type edgeid = get(edge_index, G0); dp.property("edgeid", edgeid); #if 0 get_property(G0, graph_name) = "G0"; get_property(G1, graph_name) = "G1"; get_property(G2, graph_name) = "G2"; #else // set up graph names { boost::ref_property_map<graph_t*, std::string> gname0(get_property(G0, graph_name)); dp.property("name", gname0); gname0[0] = "G0"; boost::ref_property_map<graph_t*, std::string> gname1(get_property(G1, graph_name)); dp.property("name", gname1); gname1[0] = "G1"; boost::ref_property_map<graph_t*, std::string> gname2(get_property(G1, graph_name)); dp.property("name", gname2); gname2[0] = "G2"; } #endif std::ofstream ofs("out.dot"); write_graphviz_dp(ofs, G0, dp, std::string("node_id")); return 0; } On 2 August 2012 01:33, Jeremiah Willcock <jewillco@osl.iu.edu> wrote:
On Wed, 1 Aug 2012, Chris Cooper wrote:
Hi,
I'm trying to output an image showing subgraphs [0] using write_graphviz() in boost 1.48.0. I've tried to modify an example [1] by adding a write_graphviz() call. eg...
std::ofstream ofs("out.dot"); const char* names[] = { "A", "B", "C", "D", "E", "F" }; write_graphviz(ofs, G0.m_graph, make_label_writer(names));
This works fine for displaying the underlying graph, but no subgraphs are shown. When I do the following...
write_graphviz(ofs, G0, make_label_writer(names));
I get a host of errors including...
include/boost/graph/graphviz.hpp:377: error: no matching function for call to ‘get(boost::label_writer<const char**>&, Vertex&)’
Can you please try using write_graphviz_dp instead of write_graphviz? That might work better, and allows you to specify properties to write more easily.
I notice a comment in graphviz.hpp [2] 'requires graph_name graph property' so I had a look at the subgraph_properties.cpp example [3]. This seemed to only be showing vertex properties but didn't compile out of the box. Is it possible for someone experienced in boost::graph to post a modified version of [1] that can produce something like image [0], or point me in the right direction?
I just committed a fixed version of subgraph_properties.cpp to the trunk, so that one should compile now.
-- Jeremiah Willcock _______________________________________________ Boost-users mailing list Boost-users@lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users