app/assets/javascripts/index/directions/fossgis_valhalla.js

   1 (function () {
   2   function FOSSGISValhallaEngine(id, costing) {
   3     var INSTR_MAP = [
   4       0, // kNone = 0;
   5       8, // kStart = 1;
   6       8, // kStartRight = 2;
   7       8, // kStartLeft = 3;
   8       14, // kDestination = 4;
   9       14, // kDestinationRight = 5;
  10       14, // kDestinationLeft = 6;
  11       0, // kBecomes = 7;
  12       0, // kContinue = 8;
  13       1, // kSlightRight = 9;
  14       2, // kRight = 10;
  15       3, // kSharpRight = 11;
  16       4, // kUturnRight = 12;
  17       4, // kUturnLeft = 13;
  18       7, // kSharpLeft = 14;
  19       6, // kLeft = 15;
  20       5, // kSlightLeft = 16;
  21       0, // kRampStraight = 17;
  22       24, // kRampRight = 18;
  23       25, // kRampLeft = 19;
  24       24, // kExitRight = 20;
  25       25, // kExitLeft = 21;
  26       0, // kStayStraight = 22;
  27       1, // kStayRight = 23;
  28       5, // kStayLeft = 24;
  29       20, // kMerge = 25;
  30       10, // kRoundaboutEnter = 26;
  31       10, // kRoundaboutExit = 27;
  32       17, // kFerryEnter = 28;
  33       0, // kFerryExit = 29;
  34       null, // kTransit = 30;
  35       null, // kTransitTransfer = 31;
  36       null, // kTransitRemainOn = 32;
  37       null, // kTransitConnectionStart = 33;
  38       null, // kTransitConnectionTransfer = 34;
  39       null, // kTransitConnectionDestination = 35;
  40       null, // kPostTransitConnectionDestination = 36;
  41       21, // kMergeRight = 37;
  42       20 // kMergeLeft = 38;
  43     ];
  44
  45     return {
  46       id: id,
  47       creditline:
  48       "<a href='https://gis-ops.com/global-open-valhalla-server-online/' target='_blank'>Valhalla (FOSSGIS)</a>",
  49       draggable: false,
  50
  51       getRoute: function (points, callback) {
  52         return $.ajax({
  53           url: OSM.FOSSGIS_VALHALLA_URL,
  54           data: {
  55             json: JSON.stringify({
  56               locations: points.map(function (p) {
  57                 return { lat: p.lat, lon: p.lng, radius: 5 };
  58               }),
  59               costing: costing,
  60               directions_options: {
  61                 units: "km",
  62                 language: I18n.currentLocale()
  63               }
  64             })
  65           },
  66           dataType: "json",
  67           success: function (data) {
  68             var trip = data.trip;
  69
  70             if (trip.status === 0) {
  71               var line = [];
  72               var steps = [];
  73               var distance = 0;
  74               var time = 0;
  75
  76               trip.legs.forEach(function (leg) {
  77                 var legLine = L.PolylineUtil.decode(leg.shape, {
  78                   precision: 6
  79                 });
  80
  81                 line = line.concat(legLine);
  82
  83                 leg.maneuvers.forEach(function (manoeuvre, idx) {
  84                   var point = legLine[manoeuvre.begin_shape_index];
  85
  86                   steps.push([
  87                     { lat: point[0], lng: point[1] },
  88                     INSTR_MAP[manoeuvre.type],
  89                     "<b>" + (idx + 1) + ".</b> " + manoeuvre.instruction,
  90                     manoeuvre.length * 1000,
  91                     []
  92                   ]);
  93                 });
  94
  95                 distance = distance + leg.summary.length;
  96                 time = time + leg.summary.time;
  97               });
  98
  99               callback(false, {
 100                 line: line,
 101                 steps: steps,
 102                 distance: distance * 1000,
 103                 time: time
 104               });
 105             } else {
 106               callback(true);
 107             }
 108           },
 109           error: function () {
 110             callback(true);
 111           }
 112         });
 113       }
 114     };
 115   }
 116
 117   OSM.Directions.addEngine(new FOSSGISValhallaEngine("fossgis_valhalla_car", "auto"), true);
 118   OSM.Directions.addEngine(new FOSSGISValhallaEngine("fossgis_valhalla_bicycle", "bicycle"), true);
 119   OSM.Directions.addEngine(new FOSSGISValhallaEngine("fossgis_valhalla_foot", "pedestrian"), true);
 120 }());