Source: bemap-model/bemap-coordinate.js

/**
 * BeNomad BeMap JavaScript API - Coordinate class
 */

/**
 * @classdesc
 * Base class for geographical coordinate.
 * @public
 * @constructor
 * @param {double} lon Longitude in degrees decimal (WGS84).
 * @param {double} lat Latitude in degrees decimal (WGS84).
 */
bemap.Coordinate = function(lon, lat) {
    /**
     * @type {double}
     * @protected
     */
    this.lon = lon ? lon : 0;

    /**
     * @type {double}
     * @protected
     */
    this.lat = lat ? lat : 0;
};

/**
 * Return an array of composed by latitude and longitude coordinate in degrees decimal (WGS84).
 * @public
 * @return {array} Return an array of composed by latitude and longitude coordinate in degrees decimal (WGS84).
 */
bemap.Coordinate.prototype.getLonLatArray = function() {
    return [this.lon, this.lat];
};

/**
 * Return an array of composed by longitude and latitude coordinate in degrees decimal (WGS84).
 * @public
 * @return {array} Return an array of composed by longitude and latitude coordinate in degrees decimal (WGS84).
 */
bemap.Coordinate.prototype.getLatLonArray = function() {
    return [this.lat, this.lon];
};

/* Getters and setters methods */

/**
 * Return the longitude coordinate in degrees decimal (WGS84).
 * @public
 * @return {double} Return the longitude coordinate in degrees decimal (WGS84).
 */
bemap.Coordinate.prototype.getLon = function() {
    return this.lon;
};

/**
 * Set the longitude coordinate in degrees decimal (WGS84).
 * @public
 * @param {double} lon Longitude in degrees decimal (WGS84).
 * @return {bemap.Coordinate} Return this.
 */
bemap.Coordinate.prototype.setLon = function(lon) {
    this.lon = lon;
    return this;
};

/**
 * Return the latitude coordinate in degrees decimal (WGS84).
 * @public
 * @return {double} Return the latitude coordinate in degrees decimal (WGS84).
 */
bemap.Coordinate.prototype.getLat = function() {
    return this.lat;
};

/**
 * Set the latitude coordinate in degrees decimal (WGS84).
 * @public
 * @param {double} lat Latitude in degrees decimal (WGS84).
 * @return {bemap.Coordinate} Return this.
 */
bemap.Coordinate.prototype.setLat = function(lat) {
    this.lat = lat;
    return this;
};