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132 lines
4.3 KiB
C++
132 lines
4.3 KiB
C++
//=======================================================================
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// Copyright 1997, 1998, 1999, 2000 University of Notre Dame.
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// Authors: Andrew Lumsdaine, Lie-Quan Lee, Jeremy G. Siek
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//
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// This file is part of the Boost Graph Library
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//
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// You should have received a copy of the License Agreement for the
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// Boost Graph Library along with the software; see the file LICENSE.
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// If not, contact Office of Research, University of Notre Dame, Notre
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// Dame, IN 46556.
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//
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// Permission to modify the code and to distribute modified code is
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// granted, provided the text of this NOTICE is retained, a notice that
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// the code was modified is included with the above COPYRIGHT NOTICE and
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// with the COPYRIGHT NOTICE in the LICENSE file, and that the LICENSE
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// file is distributed with the modified code.
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//
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// LICENSOR MAKES NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED.
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// By way of example, but not limitation, Licensor MAKES NO
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// REPRESENTATIONS OR WARRANTIES OF MERCHANTABILITY OR FITNESS FOR ANY
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// PARTICULAR PURPOSE OR THAT THE USE OF THE LICENSED SOFTWARE COMPONENTS
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// OR DOCUMENTATION WILL NOT INFRINGE ANY PATENTS, COPYRIGHTS, TRADEMARKS
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// OR OTHER RIGHTS.
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//=======================================================================
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//
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// This example is similar to the one in edge_plugin.cpp.
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// The only difference is that this example uses exterior
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// property storage instead of interior (plugins).
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//
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// Sample output:
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//
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// 0 --(10, 8)--> 1
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//
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// 1 --(20, 12)--> 4 --(40, 12)--> 3
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// <--(10,8)-- 0 <--(20,16)-- 2
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// 2 --(20, 16)--> 1
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// <--(20,16)-- 5
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// 3 --(40, 12)--> 6
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// <--(40,12)-- 1
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// 4 --(20, 12)--> 7
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// <--(20,12)-- 1
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// 5 --(20, 16)--> 2
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// <--(20,16)-- 6
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// 6 --(20, 16)--> 5 --(10, 8)--> 8
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// <--(20,12)-- 7 <--(40,12)-- 3
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// 7 --(20, 12)--> 6
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// <--(20,12)-- 4
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// 8
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// <--(10,8)-- 6
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#include <iostream>
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#include <boost/graph/adjacency_list.hpp>
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#include <boost/property_map.hpp>
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template <class Graph, class Capacity, class Flow>
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void print_network(Graph& G, Capacity capacity, Flow flow)
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{
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typedef typename boost::graph_traits<Graph>::vertex_iterator Viter;
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typedef typename boost::graph_traits<Graph>::out_edge_iterator OutEdgeIter;
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typedef typename boost::graph_traits<Graph>::in_edge_iterator InEdgeIter;
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Viter ui, uiend;
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for (boost::tie(ui, uiend) = boost::vertices(G); ui != uiend; ++ui) {
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OutEdgeIter out, out_end;
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std::cout << *ui << "\t";
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for(boost::tie(out, out_end) = boost::out_edges(*ui, G); out != out_end; ++out)
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std::cout << "--(" << boost::get(capacity, *out) << ", "
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<< boost::get(flow, *out) << ")--> " << boost::target(*out,G) << "\t";
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std::cout << std::endl << "\t";
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InEdgeIter in, in_end;
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for(boost::tie(in, in_end) = boost::in_edges(*ui, G); in != in_end; ++in)
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std::cout << "<--(" << boost::get(capacity, *in) << "," << boost::get(flow, *in) << ")-- "
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<< boost::source(*in, G) << "\t";
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std::cout << std::endl;
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}
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}
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int main(int argc, char* argv[]) {
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typedef boost::adjacency_list<boost::vecS, boost::vecS,
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boost::bidirectionalS, boost::no_plugin,
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boost::plugin<boost::edge_index, std::size_t> > Graph;
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const int num_vertices = 9;
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Graph G(num_vertices);
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/* 2<----5
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/ ^
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/ \
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V \
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0 ---->1---->3----->6--->8
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\ ^
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\ /
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V /
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4----->7
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*/
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int capacity[] = { 10, 20, 20, 20, 40, 40, 20, 20, 20, 10 };
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int flow[] = { 8, 12, 12, 12, 12, 12, 16, 16, 16, 8 };
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// insert edges into the graph, and assign each edge an ID number
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// to index into the property arrays
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boost::add_edge(G, 0, 1, 0);
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boost::add_edge(G, 1, 4, 1);
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boost::add_edge(G, 4, 7, 2);
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boost::add_edge(G, 7, 6, 3);
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boost::add_edge(G, 1, 3, 4);
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boost::add_edge(G, 3, 6, 5);
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boost::add_edge(G, 6, 5, 6);
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boost::add_edge(G, 5, 2, 7);
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boost::add_edge(G, 2, 1, 8);
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boost::add_edge(G, 6, 8, 9);
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typedef boost::property_map<Graph, boost::edge_index>::type EdgeIndexMap;
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EdgeIndexMap edge_id = boost::get(boost::edge_index(), G);
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typedef boost::random_access_iterator_property_map
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<int*, int, int&, EdgeIndexMap> IterMap;
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print_network(G, IterMap(capacity, edge_id), IterMap(flow, edge_id));
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return 0;
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}
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