import { ExtendedTransverseMercator } from './etmerc';
import type { ProjectionParams, ProjectionTransform } from '.';
/**
 * # Universal Transverse Mercator (UTM)
 *
 * **Classification**: Transverse cylindrical, conformal
 *
 * **Available forms**: Forward and inverse, ellipsoidal only
 *
 * **Defined area**: Within the used zone, but transformations of coordinates in adjacent zones can be accurate
 *
 * **Alias**: utm
 *
 * **Domain**: 2D
 *
 * **Input type**: Geodetic coordinates
 *
 * **Output type**: Projected coordinates
 *
 * ## Projection String
 * ```
 * +proj=utm
 * ```
 *
 * ## Required Parameters
 * - `+zone=<value>`: Select which UTM zone to use. Can be a value between 1-60.
 *
 * ## Optional Parameters
 * - `+south`: Add this flag when using the UTM on the southern hemisphere.
 * - `+approx`: Use a faster, less accurate algorithm for the Transverse Mercator. (added in PROJ 6.0.0)
 * - `+algo=auto/evenden_snyder/poder_engsager`: Selects the algorithm to use. Defaults to `poder_engsager`. (added in PROJ 7.1)
 * - `+ellps=<value>`
 *
 * ## Usage Examples
 *
 * Convert geodetic coordinates to UTM Zone 32 on the northern hemisphere:
 * ```
 * $ echo 12 56 | proj +proj=utm +zone=32
 * 687071.44       6210141.33
 * ```
 *
 * Convert geodetic coordinates to UTM Zone 59 on the southern hemisphere:
 * ```
 * $ echo 174 -44 | proj +proj=utm +zone=59 +south
 * 740526.32       5123750.87
 * ```
 *
 * Show the relationship of UTM to TM:
 * ```
 * $ echo 121 24 | proj +proj=utm +lon_0=123 | proj -I +proj=tmerc +lon_0=123 +x_0=500000 +k=0.9996
 * 121dE 24dN
 * ```
 *
 * ## Further Reading
 * - [Wikipedia](https://en.wikipedia.org/wiki/Universal_Transverse_Mercator_coordinate_system)
 *
 * ![Universal Transverse Mercator (UTM) zones](https://github.com/Open-S2/s2-tools/blob/master/assets/proj4/projections/images/utm.png?raw=true)
 */
export declare class UniversalTransverseMercator extends ExtendedTransverseMercator implements ProjectionTransform {
    name: string;
    static names: string[];
    /**
     * Preps an UniversalTransverseMercator projection
     * @param params - projection specific parameters
     */
    constructor(params?: ProjectionParams);
}
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