kopia lustrzana https://github.com/FacilMap/facilmap
36 wiersze
780 B
JavaScript
36 wiersze
780 B
JavaScript
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const polyline = require("@mapbox/polyline");
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const request = require("request-promise").defaults({
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gzip: true,
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headers: {
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'User-Agent': process.env.fmUserAgent
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}
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});
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const API_URL = "https://elevation.mapzen.com/height";
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const API_KEY = "mapzen-LWPWRB1";
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const elevation = module.exports = {
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getElevationForPoint(point) {
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return elevation.getElevationForPoints([point]).then((points) => (points[0]));
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},
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getElevationForPoints(points) {
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if(points.length == 0)
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return [ ];
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let json = {
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encoded_polyline: polyline.encode(points.map((point) => ([point.lat, point.lon])), 6),
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range: false
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};
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return request.get({
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url: `${API_URL}?json=${encodeURI(JSON.stringify(json))}&api_key=${API_KEY}`,
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json: true
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}).then((res) => (res.height));
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}
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};
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