1// Copyright 2006 Trustees of Indiana University
2
3// Use, modification and distribution is subject to the Boost Software
4// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
5// http://www.boost.org/LICENSE_1_0.txt)
6
7// A simple example of using read_graphviz to load a GraphViz Dot textual
8// graph into a BGL adjacency_list graph
9
10// Author: Ronald Garcia
11
12#include <boost/graph/graphviz.hpp>
13#include <boost/graph/adjacency_list.hpp>
14#include <string>
15#include <sstream>
16
17using namespace boost;
18using namespace std;
19
20int main()
21{
22 // Vertex properties
23 typedef property< vertex_name_t, std::string,
24 property< vertex_color_t, float > >
25 vertex_p;
26 // Edge properties
27 typedef property< edge_weight_t, double > edge_p;
28 // Graph properties
29 typedef property< graph_name_t, std::string > graph_p;
30 // adjacency_list-based type
31 typedef adjacency_list< vecS, vecS, directedS, vertex_p, edge_p, graph_p >
32 graph_t;
33
34 // Construct an empty graph and prepare the dynamic_property_maps.
35 graph_t graph(0);
36 dynamic_properties dp;
37
38 property_map< graph_t, vertex_name_t >::type name = get(p: vertex_name, g&: graph);
39 dp.property(name: "node_id", property_map_: name);
40
41 property_map< graph_t, vertex_color_t >::type mass
42 = get(p: vertex_color, g&: graph);
43 dp.property(name: "mass", property_map_: mass);
44
45 property_map< graph_t, edge_weight_t >::type weight
46 = get(p: edge_weight, g&: graph);
47 dp.property(name: "weight", property_map_: weight);
48
49 // Use ref_property_map to turn a graph property into a property map
50 boost::ref_property_map< graph_t*, std::string > gname(
51 get_property(g&: graph, tag: graph_name));
52 dp.property(name: "name", property_map_: gname);
53
54 // Sample graph as an std::istream;
55 std::istringstream gvgraph(
56 "digraph { graph [name=\"graphname\"] a c e [mass = 6.66] }");
57
58 bool status = read_graphviz(in&: gvgraph, graph, dp, node_id: "node_id");
59
60 return status ? EXIT_SUCCESS : EXIT_FAILURE;
61}
62

source code of boost/libs/graph/example/read_graphviz.cpp