<HTML> <!-- // Copyright (c) 2006, Stephan Diederich // // This code may be used under either of the following two licences: // // Permission is hereby granted, free of charge, to any person // obtaining a copy of this software and associated documentation // files (the "Software"), to deal in the Software without // restriction, including without limitation the rights to use, // copy, modify, merge, publish, distribute, sublicense, and/or // sell copies of the Software, and to permit persons to whom the // Software is furnished to do so, subject to the following // conditions: // // The above copyright notice and this permission notice shall be // included in all copies or substantial portions of the Software. // // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES // OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT // HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, // WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR // OTHER DEALINGS IN THE SOFTWARE. OF SUCH DAMAGE. // // Or: // // 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) --> <Head> <Title>Boost Graph Library: write_dimacs_max_flow</Title> <BODY BGCOLOR="#ffffff" LINK="#0000ee" TEXT="#000000" VLINK="#551a8b" ALINK="#ff0000"> <IMG SRC="../../../boost.png" ALT="C++ Boost" width="277" height="86"> <BR Clear> <H1><A NAME="sec:write_dimacs_max_flow"> <TT>write_dimacs_max_flow</TT> </H1> <pre> //outputs a graph with including edge_capacity properties to an std::ostream template < typename Graph, typename CapacityMap, typename IndexMap > void write_dimacs_max_flow(Graph& g, CapacityMap capacity, IndexMap idx, typename graph_traits<Graph>::vertex_descriptor& src, typename graph_traits<Graph>::vertex_descriptor& sink, std::ostream& out) </pre> <p> This method writes a BGL graph object as an max-flow problem into an output stream in extended dimacs format (see <a href="http://www.avglab.com/andrew/CATS/maxflow_formats.htm"><TT>Goldbergs site</TT></a> for more information). The output can be read in again using the <a href="../../../boost/graph/read_dimacs.hpp"><TT>boost/graph/read_dimacs.hpp</TT></a> method. <H3>Where Defined</H3> <P> <a href="../../../boost/graph/write_dimacs.hpp"><TT>boost/graph/write_dimacs.hpp</TT></a> <h3>Parameters</h3> IN: <tt>Graph& g</tt> <blockquote> A directed or undirected graph. The graph's type must be a model of <a href="./VertexListGraph.html">VertexListGraph</a> and <a href="./EdgeListGraph.html">EdgeListGraph</a>, as num_vertices(Graph) and num_edges(Graph) is used inside. <a href="#1">[1]</a> </blockquote> IN: <tt>CapacityMap capacity</tt> <blockquote> A property map that models <a href="../../property_map/doc/ReadablePropertyMap.html">Readable Property Map</a> whose key type is the edge descriptor of the graph and whose value type can be written to a stream. <br> </blockquote> IN: <tt>IndexMap epw</tt> <blockquote> A property map that models <a href="../../property_map/doc/ReadablePropertyMap.html">Readable Property Map</a> whose key type is the vertex descriptor of the graph and whose value type can be written to a stream. <br> </blockquote> OUT: <tt>std::ostream& out</tt> <blockquote> A standard <tt>std::ostream</tt> object. </blockquote> <H3> Example </H3> A short <a href="../example/read_write_dimacs-eg.cpp">example</a> which uses read_dimacs and write_dimacs is located in the examples directory. <h3>See Also</h3> <a href="./read_dimacs.html"><tt>read_dimacs</tt></a> <h3>Notes</h3> <a name="1">[1]</a> As num_edges() and num_vertices() is used inside which returns values for the unfiltered graph (instead of the filtered), this method cannot be used with a <a href="./filtered_graph.html">filtered_graph</a>See <a href="./filtered_graph.html#2">filtered_graph Note [2]</a> for the reason. </BODY> </HTML>