93 lines
3.5 KiB
JavaScript
93 lines
3.5 KiB
JavaScript
// OSRM car engine
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// Doesn't yet support hints
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function OSRMEngine() {
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var previousPoints, hintData;
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return {
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id: "osrm_car",
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creditline: '<a href="http://project-osrm.org/" target="_blank">OSRM</a>',
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draggable: true,
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getRoute: function (points, callback) {
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var TURN_INSTRUCTIONS = [
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"",
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'javascripts.directions.instructions.continue_on', // 1
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'javascripts.directions.instructions.slight_right', // 2
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'javascripts.directions.instructions.turn_right', // 3
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'javascripts.directions.instructions.sharp_right', // 4
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'javascripts.directions.instructions.uturn', // 5
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'javascripts.directions.instructions.sharp_left', // 6
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'javascripts.directions.instructions.turn_left', // 7
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'javascripts.directions.instructions.slight_left', // 8
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'javascripts.directions.instructions.via_point', // 9
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'javascripts.directions.instructions.follow', // 10
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'javascripts.directions.instructions.roundabout', // 11
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'javascripts.directions.instructions.leave_roundabout', // 12
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'javascripts.directions.instructions.stay_roundabout', // 13
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'javascripts.directions.instructions.start', // 14
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'javascripts.directions.instructions.destination', // 15
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'javascripts.directions.instructions.against_oneway', // 16
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'javascripts.directions.instructions.end_oneway' // 17
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];
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var url = document.location.protocol + "//router.project-osrm.org/viaroute?z=14&output=json&instructions=true";
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for (var i = 0; i < points.length; i++) {
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url += "&loc=" + points[i].lat + ',' + points[i].lng;
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if (hintData && previousPoints && previousPoints[i].equals(points[i])) {
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url += "&hint=" + hintData.locations[i];
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}
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}
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if (hintData && hintData.checksum) {
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url += "&checksum=" + hintData.checksum;
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}
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return $.ajax({
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url: url,
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dataType: 'json',
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success: function (data) {
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if (data.status === 207)
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return callback(true);
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previousPoints = points;
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hintData = data.hint_data;
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var line = L.PolylineUtil.decode(data.route_geometry, {
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precision: 6
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});
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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 linesegend;
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var instCodes = s[0].split('-');
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var instText = "<b>" + (i + 1) + ".</b> ";
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var name = s[1] ? "<b>" + s[1] + "</b>" : I18n.t('javascripts.directions.instructions.unnamed');
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if (instCodes[0] === "11" && instCodes[1]) {
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instText += I18n.t('javascripts.directions.instructions.roundabout_with_exit', { exit: instCodes[1], name: name } );
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} else {
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instText += I18n.t(TURN_INSTRUCTIONS[instCodes[0]], { name: name });
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}
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if ((i + 1) < data.route_instructions.length) {
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linesegend = data.route_instructions[i + 1][3] + 1;
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} else {
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linesegend = s[3] + 1;
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}
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steps.push([line[s[3]], s[0].split('-')[0], instText, s[2], line.slice(s[3], linesegend)]);
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}
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callback(null, {
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line: line,
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steps: steps,
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distance: data.route_summary.total_distance,
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time: data.route_summary.total_time
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});
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}
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});
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}
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};
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}
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OSM.Directions.addEngine(new OSRMEngine(), true);
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