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pgr_topologicalSort.hpp
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pgr_topologicalSort.hpp
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/*PGR-GNU*****************************************************************
File: pgr_topologicalSort.hpp
Copyright (c) 2015 pgRouting developers
Mail: project@pgrouting.org
Function's developer:
Copyright (c) 2019 Hang Wu
mail: nike0good@gmail.com
------
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
********************************************************************PGR-GNU*/
#ifndef INCLUDE_TOPOLOGICALSORT_PGR_TOPOLOGICALSORT_HPP_
#define INCLUDE_TOPOLOGICALSORT_PGR_TOPOLOGICALSORT_HPP_
#pragma once
#include <boost/config.hpp>
#include <boost/graph/adjacency_list.hpp>
#include <boost/graph/graph_traits.hpp>
#include <boost/graph/one_bit_color_map.hpp>
#include <boost/graph/stoer_wagner_min_cut.hpp>
#include <boost/property_map/property_map.hpp>
#include <boost/typeof/typeof.hpp>
#include <boost/graph/topological_sort.hpp>
#include <iostream>
#include <vector>
#include <algorithm>
#include <sstream>
#include <functional>
#include <limits>
#include "cpp_common/basePath_SSEC.hpp"
#include "cpp_common/pgr_base_graph.hpp"
template < class G > class Pgr_topologicalSort;
// user's functions
// for development
//******************************************
template < class G >
class Pgr_topologicalSort {
public:
typedef typename G::V V;
typedef typename G::E E;
typedef typename G::E_i E_i;
std::vector<pgr_topologicalSort_t> topologicalSort(
G &graph);
private:
std::vector< pgr_topologicalSort_t >
generatetopologicalSort(
const G &graph ) {
std::vector< pgr_topologicalSort_t > results;
// auto parities = boost::make_one_bit_color_map(
// num_vertices(graph.graph),
// get(boost::vertex_index, graph.graph));
// double w = stoer_wagner_min_cut(
// graph.graph,
// get(&G::G_T_E::cost, graph.graph),
// boost::parity_map(parities));
// double totalcost = 0;
// E_i ei, ei_end;
// for (boost::tie(ei, ei_end) = edges(graph.graph); ei != ei_end; ei++) {
// auto s = source(*ei, graph.graph);
// auto t = target(*ei, graph.graph);
// if (get(parities, s) != get(parities, t)) {
// pgr_topologicalSort_t tmp;
// tmp.cost = graph[*ei].cost;
// auto edge_id =
// graph.get_edge_id(
// source(*ei, graph.graph),
// target(*ei, graph.graph),
// tmp.cost);
// tmp.edge = edge_id;
// totalcost += tmp.cost;
// tmp.mincut = totalcost;
// results.push_back(tmp);
// }
// }
// pgassert(w == totalcost);
pgr_topologicalSort_t tmp;
tmp.seq=tmp.sorted_v=1;
results.push_back(tmp);
return results;
}
};
template < class G >
std::vector<pgr_topologicalSort_t>
Pgr_topologicalSort< G >::topologicalSort(
G &graph) {
// pgassert(num_vertices(graph.graph) > 1);
return generatetopologicalSort(
graph);
}
#endif // INCLUDE_TOPOLOGICALSORT_PGR_TOPOLOGICALSORT_HPP_