node-red-contrib-tak-registration/node_modules/@turf/centroid/dist/js/index.js

A Node-RED node to register to TAK and to help wrap files as datapackages to send to TAK

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
var meta_1 = require("@turf/meta");
var helpers_1 = require("@turf/helpers");
/**
 * Takes one or more features and calculates the centroid using the mean of all vertices.
 * This lessens the effect of small islands and artifacts when calculating the centroid of a set of polygons.
 *
 * @name centroid
 * @param {GeoJSON} geojson GeoJSON to be centered
 * @param {Object} [options={}] Optional Parameters
 * @param {Object} [options.properties={}] an Object that is used as the {@link Feature}'s properties
 * @returns {Feature<Point>} the centroid of the input features
 * @example
 * var polygon = turf.polygon([[[-81, 41], [-88, 36], [-84, 31], [-80, 33], [-77, 39], [-81, 41]]]);
 *
 * var centroid = turf.centroid(polygon);
 *
 * //addToMap
 * var addToMap = [polygon, centroid]
 */
function centroid(geojson, options) {
    if (options === void 0) { options = {}; }
    var xSum = 0;
    var ySum = 0;
    var len = 0;
    meta_1.coordEach(geojson, function (coord) {
        xSum += coord[0];
        ySum += coord[1];
        len++;
    }, true);
    return helpers_1.point([xSum / len, ySum / len], options.properties);
}
exports.default = centroid;