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Moved descriptors into their own folder.

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This commit is contained in:
DennisOSRM 2011-11-17 18:56:45 +01:00
parent 95bcfa3dce
commit 14c999fc82
8 changed files with 735 additions and 128 deletions
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5
DataStructures/ExtractorStructs.h
View File

@ -24,13 +24,14 @@ or see http://www.gnu.org/licenses/agpl.txt.
#include <climits>
#include <string>
#include <boost/unordered_map.hpp>
#include "../typedefs.h"
#include "Util.h"
struct _PathData {
_PathData(NodeID no, unsigned na, unsigned tu, unsigned le) : node(no), nameID(na), lengthOfSegment(le), turnInstruction(tu) { }
_PathData(NodeID no, unsigned na, unsigned tu, unsigned dur) : node(no), nameID(na), durationOfSegment(dur), turnInstruction(tu) { }
NodeID node;
unsigned nameID;
unsigned lengthOfSegment;
unsigned durationOfSegment;
short turnInstruction;
};

42
DataStructures/SearchEngine.h
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@ -100,20 +100,21 @@ public:
INFO("TODO: Start and target are on same edge")
return _upperbound;
}
double time1 = get_timestamp();
//insert start and/or target node of start edge
_forwardHeap->Insert(phantomNodes.startPhantom.edgeBasedNode, -phantomNodes.startPhantom.weight1, phantomNodes.startPhantom.edgeBasedNode);
// INFO("[FORW] Inserting node " << phantomNodes.startPhantom.edgeBasedNode << " at distance " << -phantomNodes.startPhantom.weight1);
// INFO("[FORW] Inserting node " << phantomNodes.startPhantom.edgeBasedNode << " at distance " << -phantomNodes.startPhantom.weight1);
if(phantomNodes.startPhantom.isBidirected) {
_forwardHeap->Insert(phantomNodes.startPhantom.edgeBasedNode+1, -phantomNodes.startPhantom.weight2, phantomNodes.startPhantom.edgeBasedNode+1);
// INFO("[FORW] Inserting node " << phantomNodes.startPhantom.edgeBasedNode+1 << " at distance " << -phantomNodes.startPhantom.weight2);
// INFO("[FORW] Inserting node " << phantomNodes.startPhantom.edgeBasedNode+1 << " at distance " << -phantomNodes.startPhantom.weight2);
}
//insert start and/or target node of target edge id
_backwardHeap->Insert(phantomNodes.targetPhantom.edgeBasedNode, -phantomNodes.targetPhantom.weight1, phantomNodes.targetPhantom.edgeBasedNode);
// INFO("[BACK] Inserting node " << phantomNodes.targetPhantom.edgeBasedNode << " at distance " << -phantomNodes.targetPhantom.weight1);
// INFO("[BACK] Inserting node " << phantomNodes.targetPhantom.edgeBasedNode << " at distance " << -phantomNodes.targetPhantom.weight1);
if(phantomNodes.targetPhantom.isBidirected) {
_backwardHeap->Insert(phantomNodes.targetPhantom.edgeBasedNode+1, -phantomNodes.targetPhantom.weight2, phantomNodes.targetPhantom.edgeBasedNode+1);
// INFO("[BACK] Inserting node " << phantomNodes.targetPhantom.edgeBasedNode+1 << " at distance " << -phantomNodes.targetPhantom.weight2);
// INFO("[BACK] Inserting node " << phantomNodes.targetPhantom.edgeBasedNode+1 << " at distance " << -phantomNodes.targetPhantom.weight2);
}
while(_forwardHeap->Size() + _backwardHeap->Size() > 0){
@ -124,8 +125,8 @@ public:
_RoutingStep(_backwardHeap, _forwardHeap, false, &middle, &_upperbound);
}
}
// INFO("bidirectional search iteration ended: " << _forwardHeap->Size() << "," << _backwardHeap->Size() << ", dist: " << _upperbound);
// INFO("bidirectional search iteration ended: " << _forwardHeap->Size() << "," << _backwardHeap->Size() << ", dist: " << _upperbound);
double time2 = get_timestamp();
if ( _upperbound == INT_MAX ) {
return _upperbound;
}
@ -135,17 +136,20 @@ public:
pathNode = _forwardHeap->GetData(pathNode).parent;
packedPath.push_front(pathNode);
}
// INFO("Finished getting packed forward path: " << packedPath.size());
// INFO("Finished getting packed forward path: " << packedPath.size());
packedPath.push_back(middle);
pathNode = middle;
while(phantomNodes.targetPhantom.edgeBasedNode != pathNode && (!phantomNodes.targetPhantom.isBidirected || phantomNodes.targetPhantom.edgeBasedNode+1 != pathNode)) {
pathNode = _backwardHeap->GetData(pathNode).parent;
packedPath.push_back(pathNode);
}
// INFO("Finished getting packed path: " << packedPath.size());
// INFO("Finished getting packed path: " << packedPath.size());
for(deque<NodeID>::size_type i = 0;i < packedPath.size() - 1;i++){
_UnpackEdge(packedPath[i], packedPath[i + 1], path);
}
double time3 = get_timestamp();
INFO("Path computed in " << (time2-time1)*1000 << "msec, unpacked in " << (time3-time2)*1000 << "msec");
return _upperbound;
}
@ -222,7 +226,7 @@ private:
inline void _RoutingStep(HeapPtr & _forwardHeap, HeapPtr & _backwardHeap, const bool & forwardDirection, NodeID *middle, int *_upperbound) {
const NodeID node = _forwardHeap->DeleteMin();
const int distance = _forwardHeap->GetKey(node);
// INFO((forwardDirection ? "[FORW]" : "[BACK]") << " settling " << node << " with distance " << distance);
// INFO((forwardDirection ? "[FORW]" : "[BACK]") << " settling " << node << " with distance " << distance);
if(_backwardHeap->WasInserted(node)){
const int newDistance = _backwardHeap->GetKey(node) + distance;
if(newDistance < *_upperbound){
@ -235,16 +239,18 @@ private:
_forwardHeap->DeleteAll();
return;
}
for ( typename GraphT::EdgeIterator edge = _graph->BeginEdges( node ); edge < _graph->EndEdges(node); edge++ ) {
const EdgeData & data = _graph->GetEdgeData(edge);
bool backwardDirectionFlag = (!forwardDirection) ? data.forward : data.backward;
if(backwardDirectionFlag) {
const NodeID to = _graph->GetTarget(edge);
const int edgeWeight = _graph->GetEdgeData(edge).distance;
const int edgeWeight = data.distance;
assert( edgeWeight > 0 );
//Stalling
bool backwardDirectionFlag = (!forwardDirection) ? _graph->GetEdgeData(edge).forward : _graph->GetEdgeData(edge).backward;
if(_forwardHeap->WasInserted( to )) {
if(backwardDirectionFlag) {
if(_forwardHeap->GetKey( to ) + edgeWeight < distance) {
return;
}
@ -253,18 +259,18 @@ private:
}
for ( typename GraphT::EdgeIterator edge = _graph->BeginEdges( node ); edge < _graph->EndEdges(node); edge++ ) {
const EdgeData & data = _graph->GetEdgeData(edge);
bool forwardDirectionFlag = (forwardDirection ? data.forward : data.backward );
if(forwardDirectionFlag) {
const NodeID to = _graph->GetTarget(edge);
const int edgeWeight = _graph->GetEdgeData(edge).distance;
const int edgeWeight = data.distance;
assert( edgeWeight > 0 );
bool forwardDirectionFlag = (forwardDirection ? _graph->GetEdgeData(edge).forward : _graph->GetEdgeData(edge).backward );
if(forwardDirectionFlag) {
const int toDistance = distance + edgeWeight;
// INFO((forwardDirection ? "[FORW]" : "[BACK]") << " relaxing edge (" << node << "," << to << ") with distance " << toDistance << "=" << distance << "+" << edgeWeight);
//New Node discovered -> Add to Heap + Node Info Storage
if ( !_forwardHeap->WasInserted( to ) ) {
// INFO((forwardDirection ? "[FORW]" : "[BACK]") << " inserting node " << to << " at distance " << toDistance);
_forwardHeap->Insert( to, toDistance, node );
}
//Found a shorter Path -> Update distance
@ -356,7 +362,7 @@ private:
assert(smallestWeight != INT_MAX);
const EdgeData& ed = _graph->GetEdgeData(smallestEdge);
// INFO( (ed.shortcut ? "SHRT: " : "ORIG: ") << ed.distance << "," << ed.via);
// INFO( (ed.shortcut ? "SHRT: " : "ORIG: ") << ed.distance << "," << ed.via);
if(ed.shortcut) {//unpack
const NodeID middle = ed.via;
_UnpackEdge(source, middle, path);

89
Descriptors/BaseDescriptor.h Normal file
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@ -0,0 +1,89 @@
/*
open source routing machine
Copyright (C) Dennis Luxen, 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 BASE_DESCRIPTOR_H_
#define BASE_DESCRIPTOR_H_
#include <cassert>
#include <cmath>
#include <cstdio>
#include <string>
#include <vector>
#include "../typedefs.h"
#include "../DataStructures/ExtractorStructs.h"
#include "../DataStructures/HashTable.h"
#include "../Util/StringUtil.h"
#include "../Plugins/RawRouteData.h"
static double areaThresholds[19] = { 5000, 5000, 5000, 5000, 5000, 2500, 2000, 1500, 800, 400, 250, 150, 100, 75, 25, 20, 10, 5, 0 };
/* Get angle of line segment (A,C)->(C,B), atan2 magic, formerly cosine theorem*/
static double GetAngleBetweenTwoEdges(const _Coordinate& A, const _Coordinate& C, const _Coordinate& B) {
int v1x = A.lon - C.lon;
int v1y = A.lat - C.lat;
int v2x = B.lon - C.lon;
int v2y = B.lat - C.lat;
double angle = (atan2((double)v2y,v2x) - atan2((double)v1y,v1x) )*180/M_PI;
while(angle < 0)
angle += 360;
return angle;
}
struct _RouteSummary {
std::string lengthString;
std::string durationString;
std::string startName;
std::string destName;
_RouteSummary() : lengthString("0"), durationString("0"), startName("unknown street"), destName("unknown street") {}
void BuildDurationAndLengthStrings(unsigned distance, unsigned time) {
//compute distance/duration for route summary
std::ostringstream s;
s << 10*(round(distance/10.));
lengthString = s.str();
int travelTime = time/10 + 1;
s.str("");
s << travelTime;
durationString = s.str();
}
};
struct _DescriptorConfig {
_DescriptorConfig() : instructions(true), geometry(true), encodeGeometry(false), z(18) {}
bool instructions;
bool geometry;
bool encodeGeometry;
unsigned short z;
};
template<class SearchEngineT>
class BaseDescriptor {
public:
BaseDescriptor() { }
//Maybe someone can explain the pure virtual destructor thing to me (dennis)
virtual ~BaseDescriptor() { }
virtual void Run(http::Reply & reply, RawRouteData &rawRoute, PhantomNodes &phantomNodes, SearchEngineT &sEngine, unsigned distance) = 0;
virtual void SetConfig(const _DescriptorConfig & config) = 0;
};
#endif /* BASE_DESCRIPTOR_H_ */

115
Descriptors/DescriptionFactory.cpp Normal file
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@ -0,0 +1,115 @@
/*
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.
*/
#include <boost/foreach.hpp>
#include "../typedefs.h"
#include "DescriptionFactory.h"
DescriptionFactory::DescriptionFactory() { }
DescriptionFactory::~DescriptionFactory() { }
double DescriptionFactory::GetAngleBetweenCoordinates() const {
return 0.;//GetAngleBetweenTwoEdges(previousCoordinate, currentCoordinate, nextCoordinate);
}
void DescriptionFactory::SetStartSegment(const PhantomNode & _startPhantom) {
startPhantom = _startPhantom;
AppendSegment(_startPhantom.location, _PathData(0, _startPhantom.nodeBasedEdgeNameID, 10, _startPhantom.weight1));
}
void DescriptionFactory::SetEndSegment(const PhantomNode & _targetPhantom) {
targetPhantom = _targetPhantom;
AppendSegment(_targetPhantom.location, _PathData(0, _targetPhantom.nodeBasedEdgeNameID, 0, _targetPhantom.weight1));
}
void DescriptionFactory::AppendSegment(const _Coordinate & coordinate, const _PathData & data ) {
//Segment information has following format:
//["instruction","streetname",length,position,time,"length","earth_direction",azimuth]
//Example: ["Turn left","High Street",200,4,10,"200m","NE",22.5]
//See also: http://developers.cloudmade.com/wiki/navengine/JSON_format
// (_Coordinate & loc, NodeID nam, unsigned len, unsigned dur, short tInstr)
//Is a new instruction necessary?
//yes: data.turnInstruction != 0;
//no: data.turnInstruction == 0;
pathDescription.push_back(SegmentInformation(coordinate, data.nameID, 0, data.durationOfSegment, data.turnInstruction) );
}
void DescriptionFactory::AppendRouteInstructionString(std::string & output) {
output += "[\"Turn left\",\"High Street\",200,0,10,\"200m\",\"NE\",22.5]";
}
void DescriptionFactory::AppendEncodedPolylineString(std::string & output, bool isEncoded) {
if(isEncoded)
pc.printEncodedString(pathDescription, output);
else
pc.printUnencodedString(pathDescription, output);
}
void DescriptionFactory::AppendEncodedPolylineString(std::string &output) {
pc.printEncodedString(pathDescription, output);
}
void DescriptionFactory::AppendUnencodedPolylineString(std::string &output) {
pc.printUnencodedString(pathDescription, output);
}
unsigned DescriptionFactory::Run() {
if(0 == pathDescription.size())
return 0;
unsigned entireLength = 0;
/** starts at index 1 */
pathDescription[0].length = 0;
for(unsigned i = 1; i < pathDescription.size(); ++i) {
pathDescription[i].length = ApproximateDistance(pathDescription[i-1].location, pathDescription[i].location);
}
unsigned lengthOfSegment = 0;
unsigned durationOfSegment = 0;
unsigned indexOfSegmentBegin = 0;
for(unsigned i = 1; i < pathDescription.size(); ++i) {
entireLength += pathDescription[i].length;
lengthOfSegment += pathDescription[i].length;
durationOfSegment += pathDescription[i].duration;
pathDescription[indexOfSegmentBegin].length = lengthOfSegment;
pathDescription[indexOfSegmentBegin].duration = durationOfSegment;
if(pathDescription[i].turnInstruction != 0) {
//INFO("Turn after " << lengthOfSegment << "m into way with name id " << segment.nameID);
assert(pathDescription[i].necessary);
lengthOfSegment = 0;
durationOfSegment = 0;
indexOfSegmentBegin = i;
}
}
//Generalize poly line
BOOST_FOREACH(SegmentInformation & segment, pathDescription) {
//TODO: Replace me by real generalization
segment.necessary = true;
}
//fix what needs to be fixed else
return entireLength;
}

176
Descriptors/DescriptionFactory.h Normal file
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@ -0,0 +1,176 @@
/*
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 DESCRIPTIONFACTORY_H_
#define DESCRIPTIONFACTORY_H_
#include <vector>
#include "../Algorithms/PolylineCompressor.h"
#include "../DataStructures/ExtractorStructs.h"
#include "../DataStructures/SegmentInformation.h"
/* This class is fed with all way segments in consecutive order
* and produces the description plus the encoded polyline */
class DescriptionFactory {
PolylineCompressor pc;
PhantomNode startPhantom, targetPhantom;
public:
//I know, declaring this public is considered bad. I'm lazy
std::vector <SegmentInformation> pathDescription;
DescriptionFactory();
virtual ~DescriptionFactory();
double GetAngleBetweenCoordinates() const;
void AppendEncodedPolylineString(std::string &output);
void AppendUnencodedPolylineString(std::string &output);
void AppendSegment(const _Coordinate & coordinate, const _PathData & data);
void AppendRouteInstructionString(std::string & output);
void SetStartSegment(const PhantomNode & startPhantom);
void SetEndSegment(const PhantomNode & startPhantom);
void AppendEncodedPolylineString(std::string & output, bool isEncoded);
unsigned Run();
// static inline void getDirectionOfInstruction(double angle, DirectionOfInstruction & dirInst) {
// if(angle >= 23 && angle < 67) {
// dirInst.direction = "southeast";
// dirInst.shortDirection = "SE";
// return;
// }
// if(angle >= 67 && angle < 113) {
// dirInst.direction = "south";
// dirInst.shortDirection = "S";
// return;
// }
// if(angle >= 113 && angle < 158) {
// dirInst.direction = "southwest";
// dirInst.shortDirection = "SW";
// return;
// }
// if(angle >= 158 && angle < 202) {
// dirInst.direction = "west";
// dirInst.shortDirection = "W";
// return;
// }
// if(angle >= 202 && angle < 248) {
// dirInst.direction = "northwest";
// dirInst.shortDirection = "NW";
// return;
// }
// if(angle >= 248 && angle < 292) {
// dirInst.direction = "north";
// dirInst.shortDirection = "N";
// return;
// }
// if(angle >= 292 && angle < 336) {
// dirInst.direction = "northeast";
// dirInst.shortDirection = "NE";
// return;
// }
// dirInst.direction = "East";
// dirInst.shortDirection = "E";
// return;
// }
//
// static inline void getTurnDirectionOfInstruction(double angle, std::string & output) {
// if(angle >= 23 && angle < 67) {
// output = "Turn sharp right";
// // cout << "angle " << angle << "-> " << output << endl;
// return;
// }
// if (angle >= 67 && angle < 113) {
// output = "Turn right";
// // cout << "angle " << angle << "-> " << output << endl;
// return;
// }
// if (angle >= 113 && angle < 158) {
// output = "Bear right";
// // cout << "angle " << angle << "-> " << output << endl;
// return;
// }
//
// if (angle >= 158 && angle < 202) {
// output = "Continue";
// // cout << "angle " << angle << "-> " << output << endl;
// return;
// }
// if (angle >= 202 && angle < 248) {
// output = "Bear left";
// // cout << "angle " << angle << "-> " << output << endl;
// return;
// }
// if (angle >= 248 && angle < 292) {
// output = "Turn left";
// // cout << "angle " << angle << "-> " << output << endl;
// return;
// }
// if (angle >= 292 && angle < 336) {
// output = "Turn sharp left";
// // cout << "angle " << angle << "-> " << output << endl;
// return;
// }
// output = "U-Turn";
// // cout << "angle " << angle << "-> " << output << endl;
// }
//private:
// void appendInstructionNameToString(const std::string & nameOfStreet, const std::string & instructionOrDirection, std::string &output, bool firstAdvice = false) {
// output += "[";
// if(config.instructions) {
// output += "\"";
// if(firstAdvice) {
// output += "Head ";
// }
// output += instructionOrDirection;
// output += "\",\"";
// output += nameOfStreet;
// output += "\",";
// }
// }
//
// void appendInstructionLengthToString(unsigned length, std::string &output) {
// if(config.instructions){
// std::string tmpDistance;
// intToString(10*(round(length/10.)), tmpDistance);
// output += tmpDistance;
// output += ",";
// intToString(descriptionFactory.startIndexOfGeometry, tmp);
// output += tmp;
// output += ",";
// intToString(descriptionFactory.durationOfInstruction, tmp);
// output += tmp;
// output += ",";
// output += "\"";
// output += tmpDistance;
// output += "\",";
// double angle = descriptionFactory.GetAngleBetweenCoordinates();
// DirectionOfInstruction direction;
// getDirectionOfInstruction(angle, direction);
// output += "\"";
// output += direction.shortDirection;
// output += "\",";
// std::stringstream numberString;
// numberString << fixed << setprecision(2) << angle;
// output += numberString.str();
// }
// output += "]";
// }
};
#endif /* DESCRIPTIONFACTORY_H_ */

67
Descriptors/GPXDescriptor.h Normal file
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@ -0,0 +1,67 @@
/*
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 GPX_DESCRIPTOR_H_
#define GPX_DESCRIPTOR_H_
#include <boost/foreach.hpp>
#include "BaseDescriptor.h"
template<class SearchEngineT>
class GPXDescriptor : public BaseDescriptor<SearchEngineT>{
private:
_DescriptorConfig config;
_Coordinate current;
std::string tmp;
public:
void SetConfig(const _DescriptorConfig& c) { config = c; }
void Run(http::Reply & reply, RawRouteData &rawRoute, PhantomNodes &phantomNodes, SearchEngineT &sEngine, unsigned distance) {
reply.content += ("<?xml version=\"1.0\" encoding=\"UTF-8\"?>");
reply.content += "<gpx xmlns=\"http://www.topografix.com/GPX/1/1\" "
"xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" "
"xsi:schemaLocation=\"http://www.topografix.com/GPX/1/1 gpx.xsd"
"\">";
reply.content += "<rte>";
if(distance != UINT_MAX && rawRoute.routeSegments.size()) {
convertInternalLatLonToString(phantomNodes.startPhantom.location.lat, tmp);
reply.content += "<rtept lat=\"" + tmp + "\" ";
convertInternalLatLonToString(phantomNodes.startPhantom.location.lon, tmp);
reply.content += "lon=\"" + tmp + "\"></rtept>";
for(unsigned segmentIdx = 0; segmentIdx < rawRoute.routeSegments.size(); segmentIdx++) {
BOOST_FOREACH(_PathData pathData, rawRoute.routeSegments[segmentIdx]) {
sEngine.GetCoordinatesForNodeID(pathData.node, current);
convertInternalLatLonToString(current.lat, tmp);
reply.content += "<rtept lat=\"" + tmp + "\" ";
convertInternalLatLonToString(current.lon, tmp);
reply.content += "lon=\"" + tmp + "\"></rtept>";
}
}
convertInternalLatLonToString(phantomNodes.targetPhantom.location.lat, tmp);
reply.content += "<rtept lat=\"" + tmp + "\" ";
convertInternalLatLonToString(phantomNodes.targetPhantom.location.lon, tmp);
reply.content += "lon=\"" + tmp + "\"></rtept>";
}
reply.content += "</rte></gpx>";
}
};
#endif /* GPX_DESCRIPTOR_H_ */

154
Descriptors/JSONDescriptor.h Normal file
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@ -0,0 +1,154 @@
/*
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 JSON_DESCRIPTOR_H_
#define JSON_DESCRIPTOR_H_
#include <boost/foreach.hpp>
#include "BaseDescriptor.h"
#include "DescriptionFactory.h"
#include "../DataStructures/SegmentInformation.h"
#include "../DataStructures/TurnInstructions.h"
#include "../Util/StringUtil.h"
template<class SearchEngineT>
class JSONDescriptor : public BaseDescriptor<SearchEngineT>{
private:
_DescriptorConfig config;
_RouteSummary summary;
DescriptionFactory descriptionFactory;
std::string tmp;
_Coordinate current;
public:
JSONDescriptor() {}
void SetConfig(const _DescriptorConfig & c) { config = c; }
void Run(http::Reply & reply, RawRouteData &rawRoute, PhantomNodes &phantomNodes, SearchEngineT &sEngine, unsigned durationOfTrip) {
WriteHeaderToOutput(reply.content);
//We do not need to do much, if there is no route ;-)
if(durationOfTrip != INT_MAX && rawRoute.routeSegments.size() > 0) {
summary.startName = sEngine.GetEscapedNameForNameID(phantomNodes.startPhantom.nodeBasedEdgeNameID);
descriptionFactory.SetStartSegment(phantomNodes.startPhantom);
summary.destName = sEngine.GetEscapedNameForNameID(phantomNodes.targetPhantom.nodeBasedEdgeNameID);
reply.content += "0,"
"\"status_message\": \"Found route between points\",";
for(unsigned segmentIdx = 0; segmentIdx < rawRoute.routeSegments.size(); segmentIdx++) {
const std::vector< _PathData > & path = rawRoute.routeSegments[segmentIdx];
BOOST_FOREACH(_PathData pathData, path) {
sEngine.GetCoordinatesForNodeID(pathData.node, current);
descriptionFactory.AppendSegment(current, pathData );
}
//TODO: Add via points
}
descriptionFactory.SetEndSegment(phantomNodes.targetPhantom);
} else {
//no route found
reply.content += "207,"
"\"status_message\": \"Cannot find route between points\",";
}
summary.BuildDurationAndLengthStrings(descriptionFactory.Run(), durationOfTrip);
reply.content += "\"route_summary\": {"
"\"total_distance\":";
reply.content += summary.lengthString;
reply.content += ","
"\"total_time\":";
reply.content += summary.durationString;
reply.content += ","
"\"start_point\":\"";
reply.content += summary.startName;
reply.content += "\","
"\"end_point\":\"";
reply.content += summary.destName;
reply.content += "\"";
reply.content += "},";
reply.content += "\"route_geometry\": ";
if(config.geometry) {
if(config.encodeGeometry)
descriptionFactory.AppendEncodedPolylineString(reply.content, config.encodeGeometry);
} else {
reply.content += "[]";
}
reply.content += ","
"\"route_instructions\": [";
if(config.instructions) {
unsigned prefixSumOfNecessarySegments = 0;
std::string tmpDist, tmpLength, tmp;
//Fetch data from Factory and generate a string from it.
BOOST_FOREACH(SegmentInformation segment, descriptionFactory.pathDescription) {
//["instruction","streetname",length,position,time,"length","earth_direction",azimuth]
if(0 != segment.turnInstruction) {
if(0 != prefixSumOfNecessarySegments)
reply.content += ",";
reply.content += "[\"";
reply.content += TurnInstructions.TurnStrings[segment.turnInstruction];
reply.content += "\",\"";
reply.content += sEngine.GetEscapedNameForNameID(segment.nameID);
reply.content += "\",";
intToString(segment.length, tmpDist);
reply.content += tmpDist;
reply.content += ",";
intToString(prefixSumOfNecessarySegments, tmpLength);
reply.content += tmpLength;
reply.content += ",";
intToString(segment.duration, tmp);
reply.content += ",\"";
reply.content += tmpLength;
//TODO: fix heading
reply.content += "\",\"NE\",22.5";
reply.content += "]";
}
if(segment.necessary)
++prefixSumOfNecessarySegments;
}
// descriptionFactory.AppendRouteInstructionString(reply.content);
}
reply.content += "],";
//list all viapoints so that the client may display it
reply.content += "\"via_points\":[";
for(unsigned segmentIdx = 1; (true == config.geometry) && (segmentIdx < rawRoute.segmentEndCoordinates.size()); segmentIdx++) {
if(segmentIdx > 1)
reply.content += ",";
reply.content += "[";
if(rawRoute.segmentEndCoordinates[segmentIdx].startPhantom.location.isSet())
convertInternalReversedCoordinateToString(rawRoute.segmentEndCoordinates[segmentIdx].startPhantom.location, tmp);
else
convertInternalReversedCoordinateToString(rawRoute.rawViaNodeCoordinates[segmentIdx], tmp);
reply.content += tmp;
reply.content += "]";
}
reply.content += "],"
"\"transactionId\": \"OSRM Routing Engine JSON Descriptor (v0.2)\"";
reply.content += "}";
}
void WriteHeaderToOutput(std::string & output) {
output += "{"
"\"version\": 0.3,"
"\"status\":";
}
};
#endif /* JSON_DESCRIPTOR_H_ */

7
Plugins/ViaRoutePlugin.h
View File

@ -29,11 +29,11 @@ or see http://www.gnu.org/licenses/agpl.txt.
#include "ObjectForPluginStruct.h"
#include "BaseDescriptor.h"
#include "BasePlugin.h"
#include "RouteParameters.h"
#include "GPXDescriptor.h"
#include "JSONDescriptor.h"
#include "../Descriptors/BaseDescriptor.h"
#include "../Descriptors/GPXDescriptor.h"
#include "../Descriptors/JSONDescriptor.h"
#include "../DataStructures/HashTable.h"
#include "../DataStructures/StaticGraph.h"
@ -131,7 +131,6 @@ public:
rawRoute.Resize();
unsigned distance = 0;
//single route or via point routing
if(0 == routeParameters.viaPoints.size()) {
PhantomNodes segmentPhantomNodes;