Route description are generated
This commit is contained in:
DennisOSRM
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/*
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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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#include <boost/foreach.hpp>
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#include "../typedefs.h"
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#include "DescriptionFactory.h"
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DescriptionFactory::DescriptionFactory() { }
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DescriptionFactory::~DescriptionFactory() { }
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double DescriptionFactory::GetAngleBetweenCoordinates() const {
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return 0.;//GetAngleBetweenTwoEdges(previousCoordinate, currentCoordinate, nextCoordinate);
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}
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void DescriptionFactory::SetStartSegment(const PhantomNode & _startPhantom) {
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startPhantom = _startPhantom;
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AppendSegment(_startPhantom.location, _PathData(0, _startPhantom.nodeBasedEdgeNameID, 10, _startPhantom.weight1));
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}
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void DescriptionFactory::SetEndSegment(const PhantomNode & _targetPhantom) {
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targetPhantom = _targetPhantom;
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AppendSegment(_targetPhantom.location, _PathData(0, _targetPhantom.nodeBasedEdgeNameID, 0, _targetPhantom.weight1));
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}
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void DescriptionFactory::AppendSegment(const _Coordinate & coordinate, const _PathData & data ) {
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//Segment information has following format:
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//["instruction","streetname",length,position,time,"length","earth_direction",azimuth]
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//Example: ["Turn left","High Street",200,4,10,"200m","NE",22.5]
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//See also: http://developers.cloudmade.com/wiki/navengine/JSON_format
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// (_Coordinate & loc, NodeID nam, unsigned len, unsigned dur, short tInstr)
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//Is a new instruction necessary?
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//yes: data.turnInstruction != 0;
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//no: data.turnInstruction == 0;
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pathDescription.push_back(SegmentInformation(coordinate, data.nameID, 0, data.durationOfSegment, data.turnInstruction) );
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}
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void DescriptionFactory::AppendRouteInstructionString(std::string & output) {
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output += "[\"Turn left\",\"High Street\",200,0,10,\"200m\",\"NE\",22.5]";
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}
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void DescriptionFactory::AppendEncodedPolylineString(std::string & output, bool isEncoded) {
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if(isEncoded)
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pc.printEncodedString(pathDescription, output);
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else
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pc.printUnencodedString(pathDescription, output);
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}
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void DescriptionFactory::AppendEncodedPolylineString(std::string &output) {
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pc.printEncodedString(pathDescription, output);
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}
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void DescriptionFactory::AppendUnencodedPolylineString(std::string &output) {
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pc.printUnencodedString(pathDescription, output);
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}
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unsigned DescriptionFactory::Run() {
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unsigned entireLength = 0;
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/** starts at index 1 */
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pathDescription[0].length = 0;
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for(unsigned i = 1; i < pathDescription.size(); ++i) {
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pathDescription[i].length = ApproximateDistance(pathDescription[i-1].location, pathDescription[i].location);
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}
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unsigned lengthOfSegment = 0;
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unsigned durationOfSegment = 0;
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unsigned indexOfSegmentBegin = 0;
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for(unsigned i = 1; i < pathDescription.size(); ++i) {
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entireLength += pathDescription[i].length;
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lengthOfSegment += pathDescription[i].length;
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durationOfSegment += pathDescription[i].duration;
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pathDescription[indexOfSegmentBegin].length = lengthOfSegment;
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pathDescription[indexOfSegmentBegin].duration = durationOfSegment;
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if(pathDescription[i].turnInstruction != 0) {
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//INFO("Turn after " << lengthOfSegment << "m into way with name id " << segment.nameID);
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assert(pathDescription[i].necessary);
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lengthOfSegment = 0;
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durationOfSegment = 0;
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indexOfSegmentBegin = i;
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}
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}
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//Generalize poly line
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BOOST_FOREACH(SegmentInformation & segment, pathDescription) {
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//TODO: Replace me by real generalization
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segment.necessary = true;
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}
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//fix what needs to be fixed else
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return entireLength;
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}
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@@ -0,0 +1,176 @@
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/*
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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 DESCRIPTIONFACTORY_H_
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#define DESCRIPTIONFACTORY_H_
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#include <vector>
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#include "../Algorithms/PolylineCompressor.h"
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#include "ExtractorStructs.h"
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#include "SegmentInformation.h"
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/* This class is fed with all way segments in consecutive order
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* and produces the description plus the encoded polyline */
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class DescriptionFactory {
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PolylineCompressor pc;
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PhantomNode startPhantom, targetPhantom;
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public:
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//I know, declaring this public is considered bad. I'm lazy
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std::vector <SegmentInformation> pathDescription;
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DescriptionFactory();
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virtual ~DescriptionFactory();
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double GetAngleBetweenCoordinates() const;
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void AppendEncodedPolylineString(std::string &output);
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void AppendUnencodedPolylineString(std::string &output);
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void AppendSegment(const _Coordinate & coordinate, const _PathData & data);
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void AppendRouteInstructionString(std::string & output);
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void SetStartSegment(const PhantomNode & startPhantom);
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void SetEndSegment(const PhantomNode & startPhantom);
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void AppendEncodedPolylineString(std::string & output, bool isEncoded);
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unsigned Run();
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// static inline void getDirectionOfInstruction(double angle, DirectionOfInstruction & dirInst) {
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// if(angle >= 23 && angle < 67) {
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// dirInst.direction = "southeast";
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// dirInst.shortDirection = "SE";
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// return;
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// }
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// if(angle >= 67 && angle < 113) {
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// dirInst.direction = "south";
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// dirInst.shortDirection = "S";
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// return;
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// }
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// if(angle >= 113 && angle < 158) {
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// dirInst.direction = "southwest";
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// dirInst.shortDirection = "SW";
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// return;
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// }
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// if(angle >= 158 && angle < 202) {
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// dirInst.direction = "west";
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// dirInst.shortDirection = "W";
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// return;
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// }
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// if(angle >= 202 && angle < 248) {
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// dirInst.direction = "northwest";
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// dirInst.shortDirection = "NW";
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// return;
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// }
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// if(angle >= 248 && angle < 292) {
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// dirInst.direction = "north";
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// dirInst.shortDirection = "N";
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// return;
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// }
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// if(angle >= 292 && angle < 336) {
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// dirInst.direction = "northeast";
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// dirInst.shortDirection = "NE";
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// return;
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// }
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// dirInst.direction = "East";
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// dirInst.shortDirection = "E";
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// return;
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// }
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//
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// static inline void getTurnDirectionOfInstruction(double angle, std::string & output) {
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// if(angle >= 23 && angle < 67) {
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// output = "Turn sharp right";
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// // cout << "angle " << angle << "-> " << output << endl;
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// return;
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// }
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// if (angle >= 67 && angle < 113) {
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// output = "Turn right";
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// // cout << "angle " << angle << "-> " << output << endl;
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// return;
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// }
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// if (angle >= 113 && angle < 158) {
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// output = "Bear right";
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// // cout << "angle " << angle << "-> " << output << endl;
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// return;
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// }
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//
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// if (angle >= 158 && angle < 202) {
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// output = "Continue";
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// // cout << "angle " << angle << "-> " << output << endl;
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// return;
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// }
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// if (angle >= 202 && angle < 248) {
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// output = "Bear left";
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// // cout << "angle " << angle << "-> " << output << endl;
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// return;
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// }
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// if (angle >= 248 && angle < 292) {
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// output = "Turn left";
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// // cout << "angle " << angle << "-> " << output << endl;
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// return;
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// }
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// if (angle >= 292 && angle < 336) {
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// output = "Turn sharp left";
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// // cout << "angle " << angle << "-> " << output << endl;
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// return;
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// }
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// output = "U-Turn";
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// // cout << "angle " << angle << "-> " << output << endl;
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// }
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//private:
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// void appendInstructionNameToString(const std::string & nameOfStreet, const std::string & instructionOrDirection, std::string &output, bool firstAdvice = false) {
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// output += "[";
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// if(config.instructions) {
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// output += "\"";
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// if(firstAdvice) {
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// output += "Head ";
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// }
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// output += instructionOrDirection;
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// output += "\",\"";
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// output += nameOfStreet;
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// output += "\",";
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// }
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// }
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//
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// void appendInstructionLengthToString(unsigned length, std::string &output) {
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// if(config.instructions){
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// std::string tmpDistance;
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// intToString(10*(round(length/10.)), tmpDistance);
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// output += tmpDistance;
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// output += ",";
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// intToString(descriptionFactory.startIndexOfGeometry, tmp);
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// output += tmp;
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// output += ",";
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// intToString(descriptionFactory.durationOfInstruction, tmp);
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// output += tmp;
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// output += ",";
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// output += "\"";
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// output += tmpDistance;
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// output += "\",";
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// double angle = descriptionFactory.GetAngleBetweenCoordinates();
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// DirectionOfInstruction direction;
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// getDirectionOfInstruction(angle, direction);
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// output += "\"";
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// output += direction.shortDirection;
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// output += "\",";
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// std::stringstream numberString;
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// numberString << fixed << setprecision(2) << angle;
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// output += numberString.str();
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// }
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// output += "]";
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// }
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};
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#endif /* DESCRIPTIONFACTORY_H_ */
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