63 lines
2.5 KiB
JavaScript
63 lines
2.5 KiB
JavaScript
GraphHopperEngine = function(vehicleName, vehicleParam, locale) {
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this.vehicleName = vehicleName;
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this.vehicleParam = vehicleParam;
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this.locale = locale;
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if (!locale)
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this.locale = "en";
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};
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GraphHopperEngine.prototype.createConfig = function() {
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var that = this;
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return {
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name: "javascripts.directions.engines.graphhopper_"+this.vehicleName.toLowerCase(),
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draggable: false,
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_hints: {},
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getRoute: function(isFinal, points) {
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var url = "http://graphhopper.com/routing/api/route?"
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+ that.vehicleParam
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+ "&locale=" + that.locale;
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for (var i = 0; i < points.length; i++) {
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var pair = points[i].join(',');
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url += "&point=" + pair;
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}
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if (isFinal)
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url += "&instructions=true";
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// GraphHopper supports json too
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this.requestJSONP(url + "&type=jsonp&callback=");
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},
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gotRoute: function(router, data) {
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if (!data.info.routeFound) {
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return false;
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}
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// Draw polyline
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var line = L.PolylineUtil.decode(data.route.coordinates);
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router.setPolyline(line);
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// Assemble instructions
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var steps = [];
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var instr = data.route.instructions;
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for (i = 0; i < instr.descriptions.length; i++) {
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var indi = instr.indications[i];
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var instrCode = (i == instr.descriptions.length - 1) ? 15 : this.GH_INSTR_MAP[indi];
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var instrText = "<b>" + (i + 1) + ".</b> ";
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instrText += instr.descriptions[i];
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var latlng = instr.latLngs[i];
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var distInMeter = instr.distances[i];
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steps.push([{lat: latlng[0], lng: latlng[1]}, instrCode, instrText, distInMeter]);
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}
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router.setItinerary({ steps: steps, distance: data.route.distance, time: data.route['time']/1000 });
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return true;
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},
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GH_INSTR_MAP: {
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"-3": 6, // sharp left
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"-2": 7, // left
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"-1": 8, // slight left
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0: 0, // straight
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1: 1, // slight right
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2: 2, // right
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3: 3 // sharp right
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}
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};
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};
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OSM.RoutingEngines.list.push(new GraphHopperEngine("Bicycle", "vehicle=bike").createConfig());
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OSM.RoutingEngines.list.push(new GraphHopperEngine("Foot", "vehicle=foot").createConfig());
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