osrm-backend/DataStructures/NodeInformationHelpDesk.h
2012-08-27 17:40:59 +02:00

125 lines
4.3 KiB
C++

/*
open source routing machine
Copyright (C) Dennis Luxen, others 2010
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU AFFERO General Public License as published by
the Free Software Foundation; either version 3 of the License, or
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 Affero General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
or see http://www.gnu.org/licenses/agpl.txt.
*/
#ifndef NODEINFORMATIONHELPDESK_H_
#define NODEINFORMATIONHELPDESK_H_
#include <fstream>
#include <iostream>
#include <vector>
#include "../typedefs.h"
#include "../DataStructures/QueryEdge.h"
#include "NNGrid.h"
#include "PhantomNodes.h"
#include "NodeCoords.h"
class NodeInformationHelpDesk{
public:
NodeInformationHelpDesk(const char* ramIndexInput, const char* fileIndexInput, const unsigned _numberOfNodes, const unsigned crc) : numberOfNodes(_numberOfNodes), checkSum(crc) {
readOnlyGrid = new ReadOnlyGrid(ramIndexInput,fileIndexInput);
assert(0 == coordinateVector.size());
}
//Todo: Shared memory mechanism
// NodeInformationHelpDesk(const char* ramIndexInput, const char* fileIndexInput, const unsigned crc) : checkSum(crc) {
// readOnlyGrid = new ReadOnlyGrid(ramIndexInput,fileIndexInput);
// }
~NodeInformationHelpDesk() {
delete readOnlyGrid;
}
void initNNGrid(std::ifstream& nodesInstream, std::ifstream& edgesInStream) {
DEBUG("Loading node data");
NodeInfo b;
while(!nodesInstream.eof()) {
nodesInstream.read((char *)&b, sizeof(NodeInfo));
coordinateVector.push_back(_Coordinate(b.lat, b.lon));
}
std::vector<_Coordinate>(coordinateVector).swap(coordinateVector);
nodesInstream.close();
DEBUG("Loading edge data");
unsigned numberOfOrigEdges(0);
edgesInStream.read((char*)&numberOfOrigEdges, sizeof(unsigned));
origEdgeData.resize(numberOfOrigEdges);
edgesInStream.read((char*)&(origEdgeData[0]), numberOfOrigEdges*sizeof(OriginalEdgeData));
edgesInStream.close();
DEBUG("Loaded " << numberOfOrigEdges << " orig edges");
DEBUG("Opening NN indices");
readOnlyGrid->OpenIndexFiles();
}
void initNNGrid() {
readOnlyGrid->OpenIndexFiles();
}
inline int getLatitudeOfNode(const unsigned id) const {
const NodeID node = origEdgeData.at(id).viaNode;
return coordinateVector.at(node).lat;
}
inline int getLongitudeOfNode(const unsigned id) const {
const NodeID node = origEdgeData.at(id).viaNode;
return coordinateVector.at(node).lon;
}
inline unsigned getNameIndexFromEdgeID(const unsigned id) const {
return origEdgeData.at(id).nameID;
}
inline short getTurnInstructionFromEdgeID(const unsigned id) const {
return origEdgeData.at(id).turnInstruction;
}
inline NodeID getNumberOfNodes() const { return numberOfNodes; }
inline NodeID getNumberOfNodes2() const { return coordinateVector.size(); }
inline bool FindNearestNodeCoordForLatLon(const _Coordinate& coord, _Coordinate& result) const {
return readOnlyGrid->FindNearestCoordinateOnEdgeInNodeBasedGraph(coord, result);
}
inline bool FindPhantomNodeForCoordinate( const _Coordinate & location, PhantomNode & resultNode, const unsigned zoomLevel) const {
return readOnlyGrid->FindPhantomNodeForCoordinate(location, resultNode, zoomLevel);
}
inline void FindRoutingStarts(const _Coordinate &start, const _Coordinate &target, PhantomNodes & phantomNodes, const unsigned zoomLevel) const {
readOnlyGrid->FindRoutingStarts(start, target, phantomNodes, zoomLevel);
}
inline void FindNearestPointOnEdge(const _Coordinate & input, _Coordinate& output){
readOnlyGrid->FindNearestPointOnEdge(input, output);
}
inline unsigned GetCheckSum() const {
return checkSum;
}
private:
std::vector<_Coordinate> coordinateVector;
std::vector<OriginalEdgeData> origEdgeData;
ReadOnlyGrid * readOnlyGrid;
const unsigned numberOfNodes;
const unsigned checkSum;
};
#endif /*NODEINFORMATIONHELPDESK_H_*/