leaflet/src/geo/projection/Projection.LonLat.js

JavaScript library for mobile-friendly interactive maps

import {LatLng} from '../LatLng.js';
import {Bounds} from '../../geometry/Bounds.js';
import {Point} from '../../geometry/Point.js';

/*
 * @namespace Projection
 * @section
 * Leaflet comes with a set of already defined Projections out of the box:
 *
 * @projection Projection.LonLat
 *
 * Equirectangular, or Plate Carree projection — the most simple projection,
 * mostly used by GIS enthusiasts. Directly maps `x` as longitude, and `y` as
 * latitude. Also suitable for flat worlds, e.g. game maps. Used by the
 * `EPSG:4326` and `Simple` CRS.
 */

export const LonLat = {
	project(latlng) {
		latlng = new LatLng(latlng);
		return new Point(latlng.lng, latlng.lat);
	},

	unproject(point) {
		point = new Point(point);
		return new LatLng(point.y, point.x);
	},

	bounds: new Bounds([-180, -90], [180, 90])
};