Added 'Reverse Directions' link

[rails.git] / app / assets / javascripts / index / directions / graphhopper.js

diff --git a/app/assets/javascripts/index/directions/graphhopper.js b/app/assets/javascripts/index/directions/graphhopper.js
index 8d01bcd169dd06c691faf849f9d3e2ab1aab260a..2058a4daf4437bf13955f2d4abefcb4406bdb436 100644 (file)
--- a/app/assets/javascripts/index/directions/graphhopper.js
+++ b/app/assets/javascripts/index/directions/graphhopper.js
@@ -1,40 +1,41 @@
-function GraphHopperEngine(id, vehicleParam) {
+function GraphHopperEngine(id, vehicleType) {
   var GH_INSTR_MAP = {
-    "-3": 6, // sharp left
-    "-2": 7, // left
-    "-1": 8, // slight left
+    "-3": 7, // sharp left
+    "-2": 6, // left
+    "-1": 5, // slight left
     0: 0, // straight
     1: 1, // slight right
     2: 2, // right
     3: 3, // sharp right
-    4: -1, // finish reached
-    5: -1 // via reached
+    4: 14, // finish reached
+    5: 14, // via reached
+    6: 10 // roundabout
   };
 
   return {
     id: id,
-    creditline: '<a href="https://graphhopper.com/" target="_blank">Graphhopper</a>',
+    creditline: '<a href="https://www.graphhopper.com/" target="_blank">Graphhopper</a>',
     draggable: false,
 
     getRoute: function (points, callback) {
-      // documentation
-      // https://github.com/graphhopper/graphhopper/blob/master/docs/web/api-doc.md
-      var url = "https://graphhopper.com/api/1/route?"
-        + vehicleParam
-        + "&locale=" + I18n.currentLocale()
-        + "&key=LijBPDQGfu7Iiq80w3HzwB4RUDJbMbhs6BU0dEnn"
-        + "&type=jsonp"
-        + "&instructions=true";
-
-      for (var i = 0; i < points.length; i++) {
-        url += "&point=" + points[i].lat + ',' + points[i].lng;
-      }
-
-      $.ajax({
-        url: url,
-        dataType: 'jsonp',
+      // GraphHopper Directions API documentation
+      // https://graphhopper.com/api/1/docs/routing/
+      return $.ajax({
+        url: document.location.protocol + OSM.GRAPHHOPPER_URL,
+        data: {
+          vehicle: vehicleType,
+          locale: I18n.currentLocale(),
+          key: "LijBPDQGfu7Iiq80w3HzwB4RUDJbMbhs6BU0dEnn",
+          "ch.disable": vehicleType === "car",
+          type: "jsonp",
+          elevation: false,
+          instructions: true,
+          point: points.map(function (p) { return p.lat + "," + p.lng; })
+        },
+        traditional: true,
+        dataType: "jsonp",
         success: function (data) {
-          if (!data.paths || data.paths.length == 0)
+          if (!data.paths || data.paths.length === 0)
             return callback(true);
 
           var path = data.paths[0];
@@ -44,31 +45,41 @@ function GraphHopperEngine(id, vehicleParam) {
           var len = path.instructions.length;
           for (var i = 0; i < len; i++) {
             var instr = path.instructions[i];
-            var instrCode = (i === len - 1) ? 15 : GH_INSTR_MAP[instr.sign];
+            var instrCode = (i === len - 1) ? 14 : GH_INSTR_MAP[instr.sign];
             var instrText = "<b>" + (i + 1) + ".</b> ";
             instrText += instr.text;
             var latLng = line[instr.interval[0]];
             var distInMeter = instr.distance;
+            var lineseg = [];
+            for (var j = instr.interval[0]; j <= instr.interval[1]; j++) {
+              lineseg.push({lat: line[j][0], lng: line[j][1]});
+            }
             steps.push([
-              {lat: latLng.lat, lng: latLng.lng},
+              {lat: latLng[0], lng: latLng[1]},
               instrCode,
               instrText,
               distInMeter,
-              []
+              lineseg
             ]); // TODO does graphhopper map instructions onto line indices?
           }
 
-          callback(null, {
+          callback(false, {
             line: line,
             steps: steps,
             distance: path.distance,
-            time: path.time / 1000
+            time: path.time / 1000,
+            ascend: path.ascend,
+            descend: path.descend
           });
+        },
+        error: function () {
+          callback(true);
         }
       });
     }
   };
 }
 
-OSM.Directions.addEngine(GraphHopperEngine("graphhopper_bicycle", "vehicle=bike"), false);
-OSM.Directions.addEngine(GraphHopperEngine("graphhopper_foot", "vehicle=foot"), false);
+OSM.Directions.addEngine(new GraphHopperEngine("graphhopper_car", "car"), true);
+OSM.Directions.addEngine(new GraphHopperEngine("graphhopper_bicycle", "bike"), true);
+OSM.Directions.addEngine(new GraphHopperEngine("graphhopper_foot", "foot"), true);