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1 // 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 // *** needs to give credit
7
8 OSM.RoutingEngines.list.push({
9         name: 'Bicycle (MapQuest Open)',
10         draggable: true,
11         _hints: {},
12         MQ_SPRITE_MAP: {
13                 0: 1, // straight
14                 1: 2, // slight right
15                 2: 3, // right
16                 3: 4, // sharp right
17                 4: 5, // reverse
18                 5: 6, // sharp left
19                 6: 7, // left
20                 7: 8, // slight left
21                 8: 5, // right U-turn
22                 9: 5, // left U-turn
23                 10: 2, // right merge
24                 11: 8, // left merge
25                 12: 2, // right on-ramp
26                 13: 8, // left on-ramp
27                 14: 2, // right off-ramp
28                 15: 8, // left off-ramp
29                 16: 2, // right fork
30                 17: 8, // left fork
31                 18: 1  // straight fork
32         },
33         getRoute: function(final,points) {
34                 var url="http://open.mapquestapi.com/directions/v2/route?key=Fmjtd%7Cluur290anu%2Crl%3Do5-908a0y";
35                 var from=points[0]; var to=points[points.length-1];
36                 url+="&from="+from.join(',');
37                 url+="&to="+to.join(',');
38                 url+="&routeType=bicycle";
39                 url+="&manMaps=false";
40                 url+="&shapeFormat=raw&generalize=0";
41                 this.requestJSONP(url+"&callback=");
42         },
43         gotRoute: function(router,data) {
44                 // *** what if no route?
45                 
46                 var poly=[];
47                 var shape=data.route.shape.shapePoints;
48                 for (var i=0; i<shape.length; i+=2) {
49                         poly.push(L.latLng(shape[i],shape[i+1]));
50                 }
51                 router.setPolyline(poly);
52
53                 // data.shape.maneuverIndexes links turns to polyline positions
54                 // data.legs[0].maneuvers is list of turns
55                 console.log(data);
56                 var steps=[];
57                 var mq=data.route.legs[0].maneuvers;
58                 for (var i=0; i<mq.length; i++) {
59                         var s=mq[i];
60                         var d=(i==mq.length-1) ? 15: this.MQ_SPRITE_MAP[s.turnType];
61                         steps.push([L.latLng(s.startPoint.lat, s.startPoint.lng), d, s.narrative, s.distance*1000]);
62                 }
63                 router.setItinerary( { steps: steps });
64         }
65 });