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77 lines
2.3 KiB
C++
77 lines
2.3 KiB
C++
// (C) Copyright Jeremy Siek 2001. Permission to copy, use, modify,
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// sell and distribute this software is granted provided this
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// copyright notice appears in all copies. This software is provided
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// "as is" without express or implied warranty, and with no claim as
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// to its suitability for any purpose.
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#include <iostream>
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#include <boost/graph/isomorphism.hpp>
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#include <boost/graph/adjacency_list.hpp>
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#include <boost/graph/graph_utility.hpp>
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/*
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Sample output:
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isomorphic? 1
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f: 9 10 11 0 1 3 2 4 6 8 7 5
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*/
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int
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main()
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{
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using namespace boost;
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const int n = 12;
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typedef adjacency_list<vecS, listS, undirectedS,
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property<vertex_index_t, int> > graph_t;
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graph_t g1(n), g2(n);
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std::vector<graph_traits<graph_t>::vertex_descriptor> v1(n), v2(n);
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property_map<graph_t, vertex_index_t>::type
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v1_index_map = get(vertex_index, g1),
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v2_index_map = get(vertex_index, g2);
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graph_traits<graph_t>::vertex_iterator i, end;
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int id = 0;
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for (tie(i, end) = vertices(g1); i != end; ++i, ++id) {
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put(v1_index_map, *i, id);
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v1[id] = *i;
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}
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id = 0;
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for (tie(i, end) = vertices(g2); i != end; ++i, ++id) {
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put(v2_index_map, *i, id);
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v2[id] = *i;
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}
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add_edge(v1[0], v1[1], g1); add_edge(v1[1], v1[2], g1);
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add_edge(v1[0], v1[2], g1);
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add_edge(v1[3], v1[4], g1); add_edge(v1[4], v1[5], g1);
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add_edge(v1[5], v1[6], g1); add_edge(v1[6], v1[3], g1);
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add_edge(v1[7], v1[8], g1); add_edge(v1[8], v1[9], g1);
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add_edge(v1[9], v1[10], g1);
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add_edge(v1[10], v1[11], g1); add_edge(v1[11], v1[7], g1);
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add_edge(v2[9], v2[10], g2); add_edge(v2[10], v2[11], g2);
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add_edge(v2[11], v2[9], g2);
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add_edge(v2[0], v2[1], g2); add_edge(v2[1], v2[3], g2);
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add_edge(v2[3], v2[2], g2); add_edge(v2[2], v2[0], g2);
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add_edge(v2[4], v2[5], g2); add_edge(v2[5], v2[7], g2);
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add_edge(v2[7], v2[8], g2);
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add_edge(v2[8], v2[6], g2); add_edge(v2[6], v2[4], g2);
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std::vector<graph_traits<graph_t>::vertex_descriptor> f(n);
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bool ret = isomorphism(g1, g2,
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isomorphism_map(make_iterator_property_map
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(f.begin(), v1_index_map, f[0])));
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std::cout << "isomorphic? " << ret << std::endl;
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std::cout << "f: ";
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for (std::size_t v = 0; v != f.size(); ++v)
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std::cout << get(get(vertex_index, g2), f[v]) << " ";
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std::cout << std::endl;
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return 0;
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}
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