leaflet/src/geo/crs/EPSG4326.js

JavaScript library for mobile-friendly interactive maps

import {EarthCRS} from './EarthCRS.js';
import {LonLatProjection} from '../projection/LonLatProjection.js';
import {Transformation} from '../../geometry/Transformation.js';

/**
 * A common CRS among GIS enthusiasts. Uses simple Equirectangular projection.
 *
 * Leaflet complies with the [TMS coordinate scheme for
 * EPSG:4326](https://wiki.osgeo.org/wiki/Tile_Map_Service_Specification#global-geodetic). If you are using a
 * `TileLayer` with this CRS, ensure that there are two 256x256 pixel tiles covering the whole earth at zoom level
 * zero, and that the tile coordinate origin is (-180,+90), or (-180,-90) for `TileLayer`s with [the `tms`
 * option](#tilelayer-tms) set.
 */
export class EPSG4326 extends EarthCRS {
	static code = 'EPSG:4326';
	static projection = LonLatProjection;
	static transformation = /* @__PURE__ */ new Transformation(1 / 180, 1, -1 / 180, 0.5);
}