Descriptor that outputs JSON formatted routing info
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Dennis Luxen
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6b91ae4585
commit
8502b62c77
305
Plugins/JSONDescriptor.h
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305
Plugins/JSONDescriptor.h
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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 <cstdio>
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#include <string>
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#include <vector>
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#include "../typedefs.h"
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#include "../DataStructures/ExtractorStructs.h"
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#include "../Util/StrIngUtil.h"
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#ifndef JSONDESCRIPTOR_H_
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#define JSONDESCRIPTOR_H_
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class JSONDescriptor {
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public:
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template<class SearchEngineT>
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void Run(http::Reply& reply, std::vector< _PathData > * path, PhantomNodes * phantomNodes, SearchEngineT * sEngine, unsigned distance) {
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string tmp;
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string routeGeometryString;
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string routeSummaryString;
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string routeInstructionString;
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string startPointName;
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string endPointName;
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string direction = "East";
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string shortDirection = "E";
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int lastPosition = 0;
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int position = 0;
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int travelTimeOnSegment = 0;
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double lastAngle = 0.;
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reply.content += ("{\n");
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reply.content += (" \"version\":0.3,\n");
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if(distance != UINT_MAX) {
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reply.content += (" \"status\":0,\n");
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reply.content += (" \"status_message\":");
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reply.content += "\"Found route between points\",\n";
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unsigned streetID = sEngine->GetNameIDForOriginDestinationNodeID(phantomNodes->startNode1, phantomNodes->startNode2);
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startPointName = sEngine->GetNameForNameID(streetID);
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streetID = sEngine->GetNameIDForOriginDestinationNodeID(phantomNodes->targetNode1, phantomNodes->targetNode2);
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endPointName = sEngine->GetNameForNameID(streetID);
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routeInstructionString += " [\"Head ";
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_Coordinate tmpCoord;
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if(path->size() > 0)
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sEngine->getNodeInfo(path->begin()->node, tmpCoord);
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else
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tmpCoord = phantomNodes->targetCoord;
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double angle = GetAngleBetweenTwoEdges(_Coordinate(phantomNodes->startCoord.lat, phantomNodes->startCoord.lon), tmpCoord, _Coordinate(tmpCoord.lat, tmpCoord.lon-1000));
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if(angle >= 23 && angle < 67) {
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direction = "southeast";
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shortDirection = "SE";
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}
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if(angle >= 67 && angle < 113) {
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direction = "south";
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shortDirection = "S";
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}
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if(angle >= 113 && angle < 158) {
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direction = "southwest";
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shortDirection = "SW";
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}
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if(angle >= 158 && angle < 202) {
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direction = "west";
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shortDirection = "W";
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}
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if(angle >= 202 && angle < 248) {
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direction = "northwest";
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shortDirection = "NW";
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}
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if(angle >= 248 && angle < 292) {
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direction = "north";
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shortDirection = "N";
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}
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if(angle >= 292 && angle < 336) {
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direction = "northeast";
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shortDirection = "NE";
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}
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routeInstructionString += direction;
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//put start coord to linestring;
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convertLatLon(phantomNodes->startCoord.lat, tmp);
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routeGeometryString += " [";
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routeGeometryString += tmp;
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routeGeometryString += ", ";
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convertLatLon(phantomNodes->startCoord.lon, tmp);
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routeGeometryString += tmp;
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routeGeometryString += "],\n";
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position++;
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_Coordinate previous(phantomNodes->startCoord.lat, phantomNodes->startCoord.lon);
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_Coordinate next, current, lastPlace;
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stringstream numberString;
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stringstream intNumberString;
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double tempDist = 0;
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double entireDistance = 0;
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double distanceOfInstruction = 0;
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NodeID nextID = UINT_MAX;
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NodeID nameID = sEngine->GetNameIDForOriginDestinationNodeID(phantomNodes->startNode1, phantomNodes->startNode2);
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short type = sEngine->GetTypeOfEdgeForOriginDestinationNodeID(phantomNodes->startNode1, phantomNodes->startNode2);
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lastPlace.lat = phantomNodes->startCoord.lat;
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lastPlace.lon = phantomNodes->startCoord.lon;
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short nextType = SHRT_MAX;
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short prevType = SHRT_MAX;
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for(vector< _PathData >::iterator it = path->begin(); it != path->end(); it++) {
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sEngine->getNodeInfo(it->node, current);
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convertLatLon(current.lat, tmp);
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routeGeometryString += " [";
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routeGeometryString += tmp;
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routeGeometryString += ", ";
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convertLatLon(current.lon, tmp);
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routeGeometryString += tmp;
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routeGeometryString += "],\n";
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position++;
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if(it==path->end()-1){
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next = _Coordinate(phantomNodes->targetCoord.lat, phantomNodes->targetCoord.lon);
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nextID = sEngine->GetNameIDForOriginDestinationNodeID(phantomNodes->targetNode1, phantomNodes->targetNode2);
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nextType = sEngine->GetTypeOfEdgeForOriginDestinationNodeID(phantomNodes->targetNode1, phantomNodes->targetNode2);
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} else {
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sEngine->getNodeInfo((it+1)->node, next);
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nextID = sEngine->GetNameIDForOriginDestinationNodeID(it->node, (it+1)->node);
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nextType = sEngine->GetTypeOfEdgeForOriginDestinationNodeID(it->node, (it+1)->node);
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}
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if(nextID == nameID) {
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tempDist += ApproximateDistance(previous.lat, previous.lon, current.lat, current.lon);
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} else {
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if(type == 0 && prevType != 0)
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routeInstructionString += ",enter motorway and ";
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if(type != 0 && prevType == 0 )
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routeInstructionString += ",leave motorway and ";
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routeInstructionString += " on ";
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if(nameID != 0)
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routeInstructionString += sEngine->GetNameForNameID(nameID);
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routeInstructionString += "\",";
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distanceOfInstruction = ApproximateDistance(previous.lat, previous.lon, current.lat, current.lon)+tempDist;
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entireDistance += distanceOfInstruction;
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intNumberString.str("");
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intNumberString << 10*(round(distanceOfInstruction/10.));;
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routeInstructionString += intNumberString.str();
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routeInstructionString += ",";
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intNumberString.str("");
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intNumberString << lastPosition;
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lastPosition = position;
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routeInstructionString += intNumberString.str();
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routeInstructionString += ",";
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intNumberString.str("");
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intNumberString << travelTimeOnSegment;
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routeInstructionString += intNumberString.str();
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routeInstructionString += ",\"";
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intNumberString.str("");
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intNumberString << 10*(round(distanceOfInstruction/10.));;
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routeInstructionString += intNumberString.str();
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routeInstructionString += "m\",\"";
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routeInstructionString += shortDirection;
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routeInstructionString += "\",";
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numberString.str("");
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numberString << fixed << setprecision(2) << lastAngle;
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routeInstructionString += numberString.str();
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routeInstructionString += "],\n";
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string lat; string lon;
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convertLatLon(lastPlace.lon, lon);
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convertLatLon(lastPlace.lat, lat);
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lastPlace = current;
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routeInstructionString += " [\"";
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double angle = GetAngleBetweenTwoEdges(previous, current, next);
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if(angle > 160 && angle < 200) {
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routeInstructionString += /* " (" << angle << ")*/"Continue";
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} else if (angle > 290 && angle <= 360) {
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routeInstructionString += /*" (" << angle << ")*/ "Turn sharp left";
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} else if (angle > 230 && angle <= 290) {
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routeInstructionString += /*" (" << angle << ")*/ "Turn left";
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} else if (angle > 200 && angle <= 230) {
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routeInstructionString += /*" (" << angle << ") */"Bear left";
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} else if (angle > 130 && angle <= 160) {
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routeInstructionString += /*" (" << angle << ") */"Bear right";
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} else if (angle > 70 && angle <= 130) {
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routeInstructionString += /*" (" << angle << ") */"Turn right";
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} else {
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routeInstructionString += /*" (" << angle << ") */"Turn sharp right";
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}
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lastAngle = angle;
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tempDist = 0;
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prevType = type;
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}
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nameID = nextID;
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previous = current;
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type = nextType;
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}
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nameID = sEngine->GetNameIDForOriginDestinationNodeID(phantomNodes->targetNode1, phantomNodes->targetNode2);
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type = sEngine->GetTypeOfEdgeForOriginDestinationNodeID(phantomNodes->targetNode1, phantomNodes->targetNode2);
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routeInstructionString += " at ";
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routeInstructionString += sEngine->GetNameForNameID(nameID);
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routeInstructionString += "\",";
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distanceOfInstruction = ApproximateDistance(previous.lat, previous.lon, phantomNodes->targetCoord.lat, phantomNodes->targetCoord.lon) + tempDist;
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entireDistance += distanceOfInstruction;
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intNumberString.str("");
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intNumberString << 10*(round(distanceOfInstruction/10.));;
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routeInstructionString += intNumberString.str();
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routeInstructionString += ",";
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numberString.str("");
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numberString << lastPosition;
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routeInstructionString += numberString.str();
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routeInstructionString += ",";
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numberString.str("");
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numberString << travelTimeOnSegment;
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routeInstructionString += numberString.str();
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routeInstructionString += ",\"";
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intNumberString.str("");
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intNumberString << 10*(round(distanceOfInstruction/10.));;
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routeInstructionString += intNumberString.str();
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routeInstructionString += "m\",\"";
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routeInstructionString += shortDirection;
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routeInstructionString += "\",";
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numberString.str("");
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numberString << fixed << setprecision(2) << lastAngle;
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routeInstructionString += numberString.str();
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routeInstructionString += "]\n";
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string lat; string lon;
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//put targetCoord to linestring
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convertLatLon(phantomNodes->targetCoord.lat, tmp);
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routeGeometryString += " [";
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routeGeometryString += tmp;
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routeGeometryString += ", ";
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convertLatLon(phantomNodes->targetCoord.lon, tmp);
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routeGeometryString += tmp;
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routeGeometryString += "]\n";
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position++;
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//give complete distance in meters;
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ostringstream s;
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s << 10*(round(entireDistance/10.));
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routeSummaryString += " \"total_distance\":";
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routeSummaryString += s.str();
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routeSummaryString += ",\n \"total_time\":";
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//give travel time in minutes
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int travelTime = (distance/60) + 1;
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s.str("");
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s << travelTime;
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routeSummaryString += s.str();
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routeSummaryString += ",\n \"start_point\":\"";
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routeSummaryString += startPointName;
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routeSummaryString += "\",\n \"end_point\":\"";
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routeSummaryString += endPointName;
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routeSummaryString += "\"\n";
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} else {
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reply.content += (" \"status\":207,\n");
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reply.content += (" \"status_message\":");
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reply.content += "\"Cannot find route between points\",\n";
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routeSummaryString += " \"total_distance\":0";
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routeSummaryString += ",\n \"total_time\":0";
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routeSummaryString += ",\n \"start_point\":\"";
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routeSummaryString += "\",\n \"end_point\":\"";
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routeSummaryString += "\"\n";
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}
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reply.content += " \"route_summary\": {\n";
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reply.content += routeSummaryString;
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reply.content += " },\n";
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reply.content += " \"route_geometry\": [\n";
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reply.content += routeGeometryString;
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reply.content += " ],\n";
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reply.content += " \"route_instructions\": [\n";
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reply.content += routeInstructionString;
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reply.content += " ],\n";
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reply.content += " \"transactionId\": \"OSRM Routing Engine JSON Descriptor (beta)\"\n";
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reply.content += "}";
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reply.headers.resize(3);
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reply.headers[0].name = "Content-Length";
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intToString(reply.content.size(), tmp);
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reply.headers[0].value = tmp;
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reply.headers[1].name = "Content-Type";
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reply.headers[1].value = "application/vnd.google-earth.kml+xml; charset=UTF-8";
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reply.headers[2].name = "Content-Disposition";
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reply.headers[2].value = "attachment; filename=\"route.kml\"";
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}
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private:
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};
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#endif /* JSONDESCRIPTOR_H_ */
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