app/assets/javascripts/routing_engines/mapquest.js

   1 // For docs, see:
   2 // http://developer.mapquest.com/web/products/open/directions-service
   3 // http://open.mapquestapi.com/directions/
   4 // https://github.com/apmon/openstreetmap-website/blob/21edc353a4558006f0ce23f5ec3930be6a7d4c8b/app/controllers/routing_controller.rb#L153
   5
   6 MapQuestEngine = function (vehicleName, vehicleParam, locale) {
   7   this.vehicleName = vehicleName;
   8   this.vehicleParam = vehicleParam;
   9   this.locale = locale;
  10   if (!locale)
  11     this.locale = "en";
  12 };
  13
  14 MapQuestEngine.prototype.createConfig = function () {
  15   var that = this;
  16   return {
  17     name: "javascripts.directions.engines.mapquest_" + this.vehicleName.toLowerCase(),
  18     creditline: '<a href="http://www.mapquest.com/" target="_blank">MapQuest</a> <img src="http://developer.mapquest.com/content/osm/mq_logo.png">',
  19     draggable: false,
  20     _hints: {},
  21
  22     MQ_SPRITE_MAP: {
  23       0: 1, // straight
  24       1: 2, // slight right
  25       2: 3, // right
  26       3: 4, // sharp right
  27       4: 5, // reverse
  28       5: 6, // sharp left
  29       6: 7, // left
  30       7: 8, // slight left
  31       8: 5, // right U-turn
  32       9: 5, // left U-turn
  33       10: 2, // right merge
  34       11: 8, // left merge
  35       12: 2, // right on-ramp
  36       13: 8, // left on-ramp
  37       14: 2, // right off-ramp
  38       15: 8, // left off-ramp
  39       16: 2, // right fork
  40       17: 8, // left fork
  41       18: 1  // straight fork
  42     },
  43
  44     getRoute: function (isFinal, points) {
  45       var url = document.location.protocol + "//open.mapquestapi.com/directions/v2/route?key=Fmjtd%7Cluur290anu%2Crl%3Do5-908a0y";
  46       var from = points[0];
  47       var to = points[points.length - 1];
  48       url += "&from=" + from.join(',');
  49       url += "&to=" + to.join(',');
  50       url += "&" + that.vehicleParam;
  51       //url+="&locale=" + I18n.currentLocale(); //Doesn't actually work. MapQuest requires full locale e.g. "de_DE", but I18n may only provides language, e.g. "de"
  52       url += "&manMaps=false";
  53       url += "&shapeFormat=raw&generalize=0&unit=k";
  54       this.requestCORS(url);
  55     },
  56
  57     gotRoute: function (router, data) {
  58       if (data.info.statuscode != 0) return false;
  59
  60       var poly = [];
  61       var shape = data.route.shape.shapePoints;
  62       for (var i = 0; i < shape.length; i += 2) {
  63         poly.push(L.latLng(shape[i], shape[i + 1]));
  64       }
  65       router.setPolyline(poly);
  66
  67       // data.route.shape.maneuverIndexes links turns to polyline positions
  68       // data.route.legs[0].maneuvers is list of turns
  69       var steps = [];
  70       var mq = data.route.legs[0].maneuvers;
  71       for (var i = 0; i < mq.length; i++) {
  72         var s = mq[i];
  73         var d;
  74         var linesegstart, linesegend, lineseg;
  75         linesegstart = data.route.shape.maneuverIndexes[i];
  76         if (i == mq.length - 1) {
  77           d = 15;
  78           linesegend = linesegstart + 1;
  79         } else {
  80           d = this.MQ_SPRITE_MAP[s.turnType];
  81           linesegend = data.route.shape.maneuverIndexes[i + 1] + 1;
  82         }
  83         lineseg = [];
  84         for (var j = linesegstart; j < linesegend; j++) {
  85           lineseg.push(L.latLng(data.route.shape.shapePoints[j * 2], data.route.shape.shapePoints[j * 2 + 1]));
  86         }
  87         steps.push([L.latLng(s.startPoint.lat, s.startPoint.lng), d, s.narrative, s.distance * 1000, lineseg]);
  88       }
  89       router.setItinerary({ steps: steps, distance: data.route.distance * 1000, time: data.route['time'] });
  90       return true;
  91     }
  92   };
  93 };
  94
  95 OSM.RoutingEngines.add(true, new MapQuestEngine("Bicycle", "routeType=bicycle").createConfig());
  96 OSM.RoutingEngines.add(true, new MapQuestEngine("Foot", "routeType=pedestrian").createConfig());
  97 OSM.RoutingEngines.add(true, new MapQuestEngine("Car", "routeType=fastest").createConfig());
  98 // can be: routeType=fastest|shortest|pedestrian|multimodal|bicycle