88 lines
2.6 KiB
JavaScript
88 lines
2.6 KiB
JavaScript
(function () {
|
|
function GraphHopperEngine(id, vehicleType) {
|
|
const GH_INSTR_MAP = {
|
|
"-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": 14, // finish reached
|
|
"5": 14, // via reached
|
|
"6": 10, // roundabout
|
|
"-7": 19, // keep left
|
|
"7": 18, // keep right
|
|
"-98": 4, // unknown direction u-turn
|
|
"-8": 4, // left u-turn
|
|
"8": 4 // right u-turn
|
|
};
|
|
|
|
function _processDirections(path) {
|
|
const line = L.PolylineUtil.decode(path.points);
|
|
|
|
const steps = path.instructions.map(function (instr, i) {
|
|
const num = `<b>${i + 1}.</b> `;
|
|
const lineseg = line
|
|
.slice(instr.interval[0], instr.interval[1] + 1)
|
|
.map(([lat, lng]) => ({ lat, lng }));
|
|
return [
|
|
lineseg[0],
|
|
GH_INSTR_MAP[instr.sign],
|
|
num + instr.text,
|
|
instr.distance,
|
|
lineseg
|
|
]; // TODO does graphhopper map instructions onto line indices?
|
|
});
|
|
steps.at(-1)[1] = 14;
|
|
|
|
return {
|
|
line: line,
|
|
steps: steps,
|
|
distance: path.distance,
|
|
time: path.time / 1000,
|
|
ascend: path.ascend,
|
|
descend: path.descend
|
|
};
|
|
}
|
|
|
|
return {
|
|
id: id,
|
|
creditline: "<a href=\"https://www.graphhopper.com/\" target=\"_blank\">GraphHopper</a>",
|
|
draggable: false,
|
|
|
|
getRoute: function (points, callback) {
|
|
// GraphHopper Directions API documentation
|
|
// https://graphhopper.com/api/1/docs/routing/
|
|
const data = {
|
|
vehicle: vehicleType,
|
|
locale: I18n.currentLocale(),
|
|
key: "LijBPDQGfu7Iiq80w3HzwB4RUDJbMbhs6BU0dEnn",
|
|
elevation: false,
|
|
instructions: true,
|
|
turn_costs: vehicleType === "car",
|
|
point: points.map(p => p.lat + "," + p.lng)
|
|
};
|
|
return $.ajax({
|
|
url: OSM.GRAPHHOPPER_URL,
|
|
data,
|
|
traditional: true,
|
|
dataType: "json",
|
|
success: function ({ paths }) {
|
|
if (!paths || paths.length === 0) {
|
|
return callback(true);
|
|
}
|
|
callback(false, _processDirections(paths[0]));
|
|
},
|
|
error: function () {
|
|
callback(true);
|
|
}
|
|
});
|
|
}
|
|
};
|
|
}
|
|
|
|
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);
|
|
}());
|