104 lines
3.4 KiB
C++
104 lines
3.4 KiB
C++
/*
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open source routing machine
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Copyright (C) Dennis Luxen, others 2010
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU AFFERO General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU Affero General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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or see http://www.gnu.org/licenses/agpl.txt.
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*/
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#ifndef CREATEGRAPH_H
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#define GRAPHLOADER_H
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#include <cassert>
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#include <cmath>
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#include <fstream>
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#include <iostream>
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#include <iomanip>
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#include <vector>
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#include <google/dense_hash_map>
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#ifdef _GLIBCXX_PARALLEL
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#include <parallel/algorithm>
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#else
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#include <algorithm>
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#endif
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#include "../DataStructures/ImportEdge.h"
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#include "../typedefs.h"
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typedef google::dense_hash_map<NodeID, NodeID> ExternalNodeMap;
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template<typename EdgeT>
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inline NodeID readOSMRGraphFromStream(istream &in, vector<EdgeT>& edgeList, vector<NodeInfo> * int2ExtNodeMap) {
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NodeID n, source, target, id;
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EdgeID m;
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bool locatable;
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int dir, xcoord, ycoord;// direction (0 = open, 1 = forward, 2+ = open)
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ExternalNodeMap ext2IntNodeMap;
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ext2IntNodeMap.set_empty_key(UINT_MAX);
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in >> n;
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VERBOSE(cout << "Importing n = " << n << " nodes ..." << flush;)
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for (NodeID i=0; i<n;i++) {
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in >> id >> ycoord >> xcoord;
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int2ExtNodeMap->push_back(NodeInfo(xcoord, ycoord, id));
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ext2IntNodeMap.insert(make_pair(id, i));
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}
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in >> m;
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VERBOSE(cout << " and " << m << " edges ..." << flush;)
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edgeList.reserve(m);
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for (EdgeID i=0; i<m; i++) {
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EdgeWeight weight;
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int length;
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in >> source >> target >> length >> dir >> weight >> locatable;
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assert(length > 0);
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assert(weight > 0);
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assert(0<=dir && dir<=2);
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bool forward = true;
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bool backward = true;
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if (dir == 1) backward = false;
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if (dir == 2) forward = false;
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if(length == 0)
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{ cerr << "loaded null length edge" << endl; exit(1); }
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// translate the external NodeIDs to internal IDs
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ExternalNodeMap::iterator intNodeID = ext2IntNodeMap.find(source);
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if( ext2IntNodeMap.find(source) == ext2IntNodeMap.end())
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{
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cerr << "after " << edgeList.size() << " edges" << endl;
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cerr << "->" << source << "," << target << "," << length << "," << dir << "," << weight << endl;
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cerr << "unresolved source NodeID: " << source << endl; exit(0);
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}
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source = intNodeID->second;
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intNodeID = ext2IntNodeMap.find(target);
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if(ext2IntNodeMap.find(target) == ext2IntNodeMap.end()) { cerr << "unresolved target NodeID : " << target << endl; exit(0); }
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target = intNodeID->second;
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if(source == UINT_MAX || target == UINT_MAX) { cerr << "nonexisting source or target" << endl; exit(0); }
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EdgeT inputEdge(source, target, weight, forward, backward, locatable);
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edgeList.push_back(inputEdge);
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}
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ext2IntNodeMap.clear();
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cout << "ok" << endl;
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return n;
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}
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#endif // CREATEGRAPH_H
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