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// Copyright (C) 2012, Michele Caini.
// Distributed under 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)
// Two Graphs Common Spanning Trees Algorithm
// Based on academic article of Mint, Read and Tarjan
// Efficient Algorithm for Common Spanning Tree Problem
// Electron. Lett., 28 April 1983, Volume 19, Issue 9, p.346-347
#include <boost/graph/adjacency_list.hpp>
#include <boost/graph/two_graphs_common_spanning_trees.hpp>
#include <exception>
#include <vector>
using namespace std;
typedef boost::adjacency_list< boost::vecS, // OutEdgeList
boost::vecS, // VertexList
boost::undirectedS, // Directed
boost::no_property, // VertexProperties
boost::no_property, // EdgeProperties
boost::no_property, // GraphProperties
boost::listS // EdgeList
>
Graph;
typedef boost::graph_traits< Graph >::vertex_descriptor vertex_descriptor;
typedef boost::graph_traits< Graph >::edge_descriptor edge_descriptor;
typedef boost::graph_traits< Graph >::vertex_iterator vertex_iterator;
typedef boost::graph_traits< Graph >::edge_iterator edge_iterator;
int main(int argc, char** argv)
{
Graph iG, vG;
vector< edge_descriptor > iG_o;
vector< edge_descriptor > vG_o;
iG_o.push_back(boost::add_edge(0, 1, iG).first);
iG_o.push_back(boost::add_edge(0, 2, iG).first);
iG_o.push_back(boost::add_edge(0, 3, iG).first);
iG_o.push_back(boost::add_edge(0, 4, iG).first);
iG_o.push_back(boost::add_edge(1, 2, iG).first);
iG_o.push_back(boost::add_edge(3, 4, iG).first);
vG_o.push_back(boost::add_edge(1, 2, vG).first);
vG_o.push_back(boost::add_edge(2, 0, vG).first);
vG_o.push_back(boost::add_edge(2, 3, vG).first);
vG_o.push_back(boost::add_edge(4, 3, vG).first);
vG_o.push_back(boost::add_edge(0, 3, vG).first);
vG_o.push_back(boost::add_edge(0, 4, vG).first);
vector< bool > inL(iG_o.size(), false);
std::vector< std::vector< bool > > coll;
boost::tree_collector< std::vector< std::vector< bool > >,
std::vector< bool > >
tree_collector(coll);
boost::two_graphs_common_spanning_trees(
iG, iG_o, vG, vG_o, tree_collector, inL);
std::vector< std::vector< bool > >::iterator it;
for (it = coll.begin(); it != coll.end(); ++it)
{
// Here you can play with the trees that the algorithm has found.
}
return 0;
}
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