-// OSRM car engine
+// OSRM engine
// Doesn't yet support hints
-function OSRMEngine() {
- var previousPoints, hintData;
+function OSRMEngine(id, vehicleType) {
+ var cachedHints = [];
return {
- id: "osrm_car",
- creditline: '<a href="http://project-osrm.org/" target="_blank">OSRM</a>',
+ id: id,
+ creditline: "<a href=\"https://routing.openstreetmap.de/about.html\" target=\"_blank\">OSRM (FOSSGIS)</a>",
draggable: true,
- getRoute: function (points, callback) {
- var TURN_INSTRUCTIONS = [
- "",
- 'javascripts.directions.instructions.continue', // 1
- 'javascripts.directions.instructions.slight_right', // 2
- 'javascripts.directions.instructions.turn_right', // 3
- 'javascripts.directions.instructions.sharp_right', // 4
- 'javascripts.directions.instructions.uturn', // 5
- 'javascripts.directions.instructions.sharp_left', // 6
- 'javascripts.directions.instructions.turn_left', // 7
- 'javascripts.directions.instructions.slight_left', // 8
- 'javascripts.directions.instructions.via_point', // 9
- 'javascripts.directions.instructions.follow', // 10
- 'javascripts.directions.instructions.roundabout', // 11
- 'javascripts.directions.instructions.leave_roundabout', // 12
- 'javascripts.directions.instructions.stay_roundabout', // 13
- 'javascripts.directions.instructions.start', // 14
- 'javascripts.directions.instructions.destination', // 15
- 'javascripts.directions.instructions.against_oneway', // 16
- 'javascripts.directions.instructions.end_oneway', // 17
- 'javascripts.directions.instructions.ferry' // 18
- ];
+ _transformSteps: function (input_steps, line) {
+ var INSTRUCTION_TEMPLATE = {
+ "continue": "javascripts.directions.instructions.continue",
+ "merge right": "javascripts.directions.instructions.merge_right",
+ "merge left": "javascripts.directions.instructions.merge_left",
+ "off ramp right": "javascripts.directions.instructions.offramp_right",
+ "off ramp left": "javascripts.directions.instructions.offramp_left",
+ "on ramp right": "javascripts.directions.instructions.onramp_right",
+ "on ramp left": "javascripts.directions.instructions.onramp_left",
+ "fork right": "javascripts.directions.instructions.fork_right",
+ "fork left": "javascripts.directions.instructions.fork_left",
+ "end of road right": "javascripts.directions.instructions.endofroad_right",
+ "end of road left": "javascripts.directions.instructions.endofroad_left",
+ "turn straight": "javascripts.directions.instructions.continue",
+ "turn slight right": "javascripts.directions.instructions.slight_right",
+ "turn right": "javascripts.directions.instructions.turn_right",
+ "turn sharp right": "javascripts.directions.instructions.sharp_right",
+ "turn uturn": "javascripts.directions.instructions.uturn",
+ "turn sharp left": "javascripts.directions.instructions.sharp_left",
+ "turn left": "javascripts.directions.instructions.turn_left",
+ "turn slight left": "javascripts.directions.instructions.slight_left",
+ "roundabout": "javascripts.directions.instructions.roundabout",
+ "rotary": "javascripts.directions.instructions.roundabout",
+ "exit roundabout": "javascripts.directions.instructions.exit_roundabout",
+ "exit rotary": "javascripts.directions.instructions.exit_roundabout",
+ "depart": "javascripts.directions.instructions.start",
+ "arrive": "javascripts.directions.instructions.destination"
+ };
+ var ICON_MAP = {
+ "continue": 0,
+ "merge right": 21,
+ "merge left": 20,
+ "off ramp right": 24,
+ "off ramp left": 25,
+ "on ramp right": 2,
+ "on ramp left": 6,
+ "fork right": 18,
+ "fork left": 19,
+ "end of road right": 22,
+ "end of road left": 23,
+ "turn straight": 0,
+ "turn slight right": 1,
+ "turn right": 2,
+ "turn sharp right": 3,
+ "turn uturn": 4,
+ "turn slight left": 5,
+ "turn left": 6,
+ "turn sharp left": 7,
+ "roundabout": 10,
+ "rotary": 10,
+ "exit roundabout": 10,
+ "exit rotary": 10,
+ "depart": 8,
+ "arrive": 14
+ };
+ var numToWord = function (num) {
+ return ["first", "second", "third", "fourth", "fifth", "sixth", "seventh", "eighth", "ninth", "tenth"][num - 1];
+ };
+ var transformed_steps = input_steps.map(function (step, idx) {
+ var maneuver_id;
+
+ // special case handling
+ switch (step.maneuver.type) {
+ case "on ramp":
+ case "off ramp":
+ case "merge":
+ case "end of road":
+ case "fork":
+ maneuver_id = step.maneuver.type + " " + (step.maneuver.modifier.indexOf("left") >= 0 ? "left" : "right");
+ break;
+ case "depart":
+ case "arrive":
+ case "roundabout":
+ case "rotary":
+ case "exit roundabout":
+ case "exit rotary":
+ maneuver_id = step.maneuver.type;
+ break;
+ case "roundabout turn":
+ case "turn":
+ maneuver_id = "turn " + step.maneuver.modifier;
+ break;
+ // for unknown types the fallback is turn
+ default:
+ maneuver_id = "turn " + step.maneuver.modifier;
+ break;
+ }
+ var template = INSTRUCTION_TEMPLATE[maneuver_id];
+
+ // convert lat,lng pairs to LatLng objects
+ var step_geometry = L.PolylineUtil.decode(step.geometry, { precision: 5 }).map(function (a) { return L.latLng(a); });
+ // append step_geometry on line
+ Array.prototype.push.apply(line, step_geometry);
+ var instText = "<b>" + (idx + 1) + ".</b> ";
+ var destinations = "<b>" + step.destinations + "</b>";
+ var namedRoad = true;
+ var name;
+
+ if (step.name && step.ref) {
+ name = "<b>" + step.name + " (" + step.ref + ")</b>";
+ } else if (step.name) {
+ name = "<b>" + step.name + "</b>";
+ } else if (step.ref) {
+ name = "<b>" + step.ref + "</b>";
+ } else {
+ name = I18n.t("javascripts.directions.instructions.unnamed");
+ namedRoad = false;
+ }
+
+ if (step.maneuver.type.match(/^exit (rotary|roundabout)$/)) {
+ instText += I18n.t(template, { name: name });
+ } else if (step.maneuver.type.match(/^(rotary|roundabout)$/)) {
+ if (step.maneuver.exit) {
+ if (step.maneuver.exit <= 10) {
+ instText += I18n.t(template + "_with_exit_ordinal", { exit: I18n.t("javascripts.directions.instructions.exit_counts." + numToWord(step.maneuver.exit)), name: name });
+ } else {
+ instText += I18n.t(template + "_with_exit", { exit: step.maneuver.exit, name: name });
+ }
+ } else {
+ instText += I18n.t(template + "_without_exit", { name: name });
+ }
+ } else if (step.maneuver.type.match(/^(on ramp|off ramp)$/)) {
+ var params = {};
+ if (step.exits && step.maneuver.type.match(/^(off ramp)$/)) params.exit = step.exits;
+ if (step.destinations) params.directions = destinations;
+ if (namedRoad) params.directions = name;
+ if (Object.keys(params).length > 0) {
+ template = template + "_with_" + Object.keys(params).join("_");
+ }
+ instText += I18n.t(template, params);
+ } else {
+ instText += I18n.t(template + "_without_exit", { name: name });
+ }
+ return [[step.maneuver.location[1], step.maneuver.location[0]], ICON_MAP[maneuver_id], instText, step.distance, step_geometry];
+ });
+
+ return transformed_steps;
+ },
+
+ getRoute: function (points, callback) {
var params = [
- { name: "z", value: "14" },
- { name: "output", value: "json" },
- { name: "instructions", value: true }
+ { name: "overview", value: "false" },
+ { name: "geometries", value: "polyline" },
+ { name: "steps", value: true }
];
- for (var i = 0; i < points.length; i++) {
- params.push({ name: "loc", value: points[i].lat + "," + points[i].lng });
- if (hintData && previousPoints && previousPoints[i].equals(points[i])) {
- params.push({ name: "hint", value: hintData.locations[i] });
- }
+ if (cachedHints.length === points.length) {
+ params.push({ name: "hints", value: cachedHints.join(";") });
+ } else {
+ // invalidate cache
+ cachedHints = [];
}
- if (hintData && hintData.checksum) {
- params.push({ name: "checksum", value: hintData.checksum });
- }
+ var encoded_coords = points.map(function (p) {
+ return p.lng + "," + p.lat;
+ }).join(";");
+
+ var req_url = OSM.FOSSGIS_OSRM_URL + "routed-" + vehicleType + "/route/v1/driving/" + encoded_coords;
+
+ var onResponse = function (data) {
+ if (data.code !== "Ok") {
+ return callback(true);
+ }
+
+ cachedHints = data.waypoints.map(function (wp) {
+ return wp.hint;
+ });
+
+ var line = [];
+ var transformLeg = function (leg) {
+ return this._transformSteps(leg.steps, line);
+ };
+
+ var steps = [].concat.apply([], data.routes[0].legs.map(transformLeg.bind(this)));
+
+ callback(false, {
+ line: line,
+ steps: steps,
+ distance: data.routes[0].distance,
+ time: data.routes[0].duration
+ });
+ };
return $.ajax({
- url: document.location.protocol + OSM.OSRM_URL,
+ url: req_url,
data: params,
dataType: "json",
- success: function (data) {
- if (data.status === 207)
- return callback(true);
-
- previousPoints = points;
- hintData = data.hint_data;
-
- var line = L.PolylineUtil.decode(data.route_geometry, {
- precision: 6
- });
-
- var steps = [];
- for (i = 0; i < data.route_instructions.length; i++) {
- var s = data.route_instructions[i];
- var linesegend;
- var instCodes = s[0].split('-');
- if (s[8] === 2) {
- /* indicates a ferry in car routing mode, see https://github.com/Project-OSRM/osrm-backend/blob/6cbbd1e5a1b441eb27055f56956e1bac14832a58/profiles/car.lua#L151 */
- instCodes = ["18"];
- }
- var instText = "<b>" + (i + 1) + ".</b> ";
- var name = s[1] ? "<b>" + s[1] + "</b>" : I18n.t('javascripts.directions.instructions.unnamed');
- if (instCodes[0] === "11" && instCodes[1]) {
- instText += I18n.t(TURN_INSTRUCTIONS[instCodes[0]] + '_with_exit', { exit: instCodes[1], name: name } );
- } else {
- instText += I18n.t(TURN_INSTRUCTIONS[instCodes[0]] + '_without_exit', { name: name });
- }
- if ((i + 1) < data.route_instructions.length) {
- linesegend = data.route_instructions[i + 1][3] + 1;
- } else {
- linesegend = s[3] + 1;
- }
- steps.push([line[s[3]], instCodes[0], instText, s[2], line.slice(s[3], linesegend)]);
- }
-
- callback(false, {
- line: line,
- steps: steps,
- distance: data.route_summary.total_distance,
- time: data.route_summary.total_time
- });
- },
+ success: onResponse.bind(this),
error: function () {
callback(true);
}
};
}
-OSM.Directions.addEngine(new OSRMEngine(), true);
+OSM.Directions.addEngine(new OSRMEngine("fossgis_osrm_car", "car"), true);
+OSM.Directions.addEngine(new OSRMEngine("fossgis_osrm_bike", "bike"), true);
+OSM.Directions.addEngine(new OSRMEngine("fossgis_osrm_foot", "foot"), true);
projects / rails.git / blobdiff