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

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