43 lines
1.5 KiB
JavaScript
43 lines
1.5 KiB
JavaScript
// OSRM car engine
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// *** this should all be shared from an OSRM library somewhere
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// *** need to clear hints at some point
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OSM.RoutingEngines.list.push({
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name: "javascripts.directions.engines.osrm_car",
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creditline: 'Directions courtesy of <a href="http://project-osrm.org/" target="_blank">OSRM</a>',
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draggable: true,
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_hints: {},
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getRoute: function(isFinal,points) {
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var url="http://router.project-osrm.org/viaroute?z=14&output=json";
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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+="&loc="+pair;
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if (this._hints[pair]) url+= "&hint="+this._hints[pair];
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}
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if (isFinal) url+="&instructions=true";
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this.requestJSONP(url+"&jsonp=");
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},
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gotRoute: function(router,data) {
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if (data.status==207) {
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alert("Couldn't find route between those two places");
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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_geometry);
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for (i=0; i<line.length; i++) { line[i].lat/=10; line[i].lng/=10; }
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router.setPolyline(line);
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// *** store hints
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// Assemble instructions
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var steps=[];
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for (i=0; i<data.route_instructions.length; i++) {
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var s=data.route_instructions[i];
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var instCodes=s[0].split('-');
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var instText="<b>"+(i+1)+".</b> ";
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instText+=TURN_INSTRUCTIONS[instCodes[0]];
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if (instCodes[1]) { instText+="exit "+instCodes[1]+" "; }
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if (instCodes[0]!=15) { instText+=s[1] ? "<b>"+s[1]+"</b>" : I18n.t('javascripts.directions.instructions.unnamed'); }
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steps.push([line[s[3]], s[0].split('-')[0], instText, s[2]]);
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}
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if (steps.length) router.setItinerary({ steps: steps });
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}
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});
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