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nanomap/monav/contractionhierarchies/contractionhierarchiesclient.h
2010-11-17 22:05:12 +01:00

94 lines
3.0 KiB
C++

/*
Copyright 2010 Christian Vetter veaac.fdirct@gmail.com
This file is part of MoNav.
MoNav 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 3 of the License, or
(at your option) any later version.
MoNav 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 MoNav. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef CONTRACTIONHIERARCHIESCLIENT_H
#define CONTRACTIONHIERARCHIESCLIENT_H
#include <QObject>
#include <QStringList>
#include "interfaces/irouter.h"
#include "binaryheap.h"
#include "compressedgraph.h"
#include <queue>
class ContractionHierarchiesClient : public QObject, public IRouter
{
Q_OBJECT
Q_INTERFACES( IRouter )
public:
ContractionHierarchiesClient();
virtual ~ContractionHierarchiesClient();
virtual QString GetName();
virtual void SetInputDirectory( const QString& dir );
virtual void ShowSettings();
virtual bool LoadData();
virtual bool GetRoute( double* distance, QVector< Node>* pathNodes, QVector< Edge >* pathEdges, const IGPSLookup::Result& source, const IGPSLookup::Result& target );
virtual bool GetName( QString* result, unsigned name );
virtual bool GetNames( QVector< QString >* result, QVector< unsigned > names );
virtual bool GetType( QString* result, unsigned type );
virtual bool GetTypes( QVector< QString >* result, QVector< unsigned > types );
protected:
struct HeapData {
CompressedGraph::NodeIterator parent;
bool stalled: 1;
HeapData( CompressedGraph::NodeIterator p ) {
parent = p;
stalled = false;
}
};
class AllowForwardEdge {
public:
bool operator()( bool forward, bool /*backward*/ ) const {
return forward;
}
};
class AllowBackwardEdge {
public:
bool operator()( bool /*forward*/, bool backward ) const {
return backward;
}
};
typedef CompressedGraph::NodeIterator NodeIterator;
typedef CompressedGraph::EdgeIterator EdgeIterator;
typedef BinaryHeap< NodeIterator, int, int, HeapData, MapStorage< NodeIterator, unsigned > > Heap;
CompressedGraph m_graph;
const char* m_names;
QFile m_namesFile;
Heap* m_heapForward;
Heap* m_heapBackward;
std::queue< NodeIterator > m_stallQueue;
QString m_directory;
QStringList m_types;
void unload();
template< class EdgeAllowed, class StallEdgeAllowed >
void computeStep( Heap* heapForward, Heap* heapBackward, const EdgeAllowed& edgeAllowed, const StallEdgeAllowed& stallEdgeAllowed, NodeIterator* middle, int* targetDistance );
int computeRoute( const IGPSLookup::Result& source, const IGPSLookup::Result& target, QVector< Node>* pathNodes, QVector< Edge >* pathEdges );
bool unpackEdge( const NodeIterator source, const NodeIterator target, bool forward, QVector< Node>* pathNodes, QVector< Edge >* pathEdges );
};
#endif // CONTRACTIONHIERARCHIESCLIENT_H