osm2geojson-ultra/dist/index.js

a faster & more complete OSM & Overpass (either in xml or in json formats) to geojson convertor - 4x faster than xmldom + osmtogeojson in most situations - implemented in TypeScript with txml for XML parsing

import { RefElements } from "./ref-elements.js";
import analyzeFeaturesFromJson from "./json.js";
import analyzeFeaturesFromXml from "./xml.js";
function parseOptions(options) {
    if (!options) {
        return { elementId: undefined };
    }
    let elementId = options.elementId;
    return { elementId };
}
function detectFormat(o) {
    if (o.elements) {
        return "json";
    }
    if (o.indexOf("<osm") >= 0) {
        return "xml";
    }
    if (o.trim().startsWith("{")) {
        return "json-raw";
    }
    return "invalid";
}
function osm2geojson(osm, opts) {
    var _a;
    let { elementId } = parseOptions(opts);
    let format = detectFormat(osm);
    const refElements = new RefElements();
    if (format === "json-raw") {
        osm = JSON.parse(osm);
        if (osm.elements) {
            format = "json";
        }
        else {
            format = "invalid";
        }
    }
    if (format === "json") {
        analyzeFeaturesFromJson(osm, refElements);
    }
    else if (format === "xml") {
        analyzeFeaturesFromXml(osm, refElements);
    }
    refElements.bindAll();
    if (elementId) {
        return (_a = refElements.get(elementId)) === null || _a === void 0 ? void 0 : _a.toFeature();
    }
    let featureArray = [];
    for (const v of refElements.values()) {
        if (v.refCount > 0 && !v.hasTag) {
            continue;
        }
        const feature = v.toFeature();
        if (feature) {
            featureArray.push(feature);
        }
    }
    return { type: "FeatureCollection", features: featureArray };
}
export default osm2geojson;