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