geobuf-merge/dist/index.js

Merge multiple geobuf-encoded geometries together

"use strict";
var __create = Object.create;
var __defProp = Object.defineProperty;
var __getOwnPropDesc = Object.getOwnPropertyDescriptor;
var __getOwnPropNames = Object.getOwnPropertyNames;
var __getProtoOf = Object.getPrototypeOf;
var __hasOwnProp = Object.prototype.hasOwnProperty;
var __export = (target, all) => {
  for (var name in all)
    __defProp(target, name, { get: all[name], enumerable: true });
};
var __copyProps = (to, from, except, desc) => {
  if (from && typeof from === "object" || typeof from === "function") {
    for (let key of __getOwnPropNames(from))
      if (!__hasOwnProp.call(to, key) && key !== except)
        __defProp(to, key, { get: () => from[key], enumerable: !(desc = __getOwnPropDesc(from, key)) || desc.enumerable });
  }
  return to;
};
var __toESM = (mod, isNodeMode, target) => (target = mod != null ? __create(__getProtoOf(mod)) : {}, __copyProps(
  isNodeMode || !mod || !mod.__esModule ? __defProp(target, "default", { value: mod, enumerable: true }) : target,
  mod
));
var __toCommonJS = (mod) => __copyProps(__defProp({}, "__esModule", { value: true }), mod);

// src/index.ts
var src_exports = {};
__export(src_exports, {
  mergeGeobufs: () => mergeGeobufs
});
module.exports = __toCommonJS(src_exports);
var import_pbf2 = __toESM(require("pbf"));
var import_geobuf2 = require("geobuf");

// src/helpers/normalize.ts
var import_geobuf = require("geobuf");
var import_pbf = __toESM(require("pbf"));
function normalizePbf(pbf) {
  const decoded = (0, import_geobuf.decode)(new import_pbf.default(pbf));
  if (decoded.type === "FeatureCollection") {
    return decoded;
  }
  if (decoded.type === "GeometryCollection") {
    return {
      type: "FeatureCollection",
      features: decoded.geometries.map((geometry) => ({
        type: "Feature",
        geometry,
        properties: {}
      }))
    };
  }
  return {
    type: "FeatureCollection",
    features: [
      decoded.type === "Feature" ? decoded : {
        type: "Feature",
        geometry: decoded,
        properties: {}
      }
    ]
  };
}

// src/helpers/merge.ts
function mergeFeatureCollections(featureCollections) {
  return {
    type: "FeatureCollection",
    features: featureCollections.flatMap((d) => d.features)
  };
}

// src/index.ts
function mergeGeobufs(geobufs) {
  const decoded = geobufs.map((geobuf) => normalizePbf(geobuf));
  return (0, import_geobuf2.encode)(mergeFeatureCollections(decoded), new import_pbf2.default());
}
// Annotate the CommonJS export names for ESM import in node:
0 && (module.exports = {
  mergeGeobufs
});