import { CRS } from './CRS.js';
import type { LatLng } from '../LatLng.js';
/** @import {LatLng} from '../LatLng.js' */
/**
 * Serves as the base for CRS that are global such that they cover the earth. Can only be used as the base for other
 * CRS and cannot be used directly, since it does not have a `code`, `projection` or `transformation`. `distance()`
 * returns meters.
 */
export declare class EarthCRS extends CRS {
    /** @type {[number, number]} */
    static wrapLng: [number, number];
    /**
     * The mean Earth radius in meters used by [`distance`](#earthcrs-distance), as recommended by the International
     * Union of Geodesy and Geophysics (see https://rosettacode.org/wiki/Haversine_formula).
     */
    static R: number;
    /**
     * Returns the distance in meters between two geographical points, using the Haversine approximation.
     * @param {LatLng} latlng1
     * @param {LatLng} latlng2
     */
    static distance(latlng1: LatLng, latlng2: LatLng): number;
}