s2-tools/dist/proj4/projections/lcc.d.ts

A collection of geospatial tools primarily designed for WGS84, Web Mercator, and S2.

import { ProjectionBase } from '.';
import type { VectorPoint } from '../../geometry';
import type { ProjectionParams, ProjectionTransform } from '.';
/**
 * # Lambert Conformal Conic
 *
 *  Lambert Conformal Conic projection (LCC) is a conic map projection
 * used for aeronautical charts, portions of the State Plane Coordinate
 * System, and many national and regional mapping systems. It is one of
 * seven projections introduced by Johann Heinrich Lambert in 1772.
 *
 * It has several different forms: with one and two standard parallels
 * (referred to as 1SP and 2SP in EPSG guidance notes). Additionally we
 * provide "2SP Michigan" form which is very similar to normal 2SP, but
 * with a scaling factor on the ellipsoid (given as `k_0` parameter).
 * It is implemented as per EPSG Guidance Note 7-2 (version 54, August
 * 2018, page 25). It is used in a few systems in the EPSG database which
 * justifies adding this otherwise non-standard projection.
 *
 * **Classification**: Conformal conic
 *
 * **Available forms**: Forward and inverse, spherical and ellipsoidal
 * - One or two standard parallels (1SP and 2SP).
 * - "LCC 2SP Michigan" form can be used by setting the `+k_0` parameter to specify ellipsoid scale.
 *
 * **Defined area**: Best for regions predominantly east-west in extent and located in the middle north or south latitudes.
 *
 * **Alias**: lcc
 *
 * **Domain**: 2D
 *
 * **Input type**: Geodetic coordinates
 *
 * **Output type**: Projected coordinates
 *
 * ## Projection String
 * ```
 * +proj=lcc +lon_0=-90 +lat_1=33 +lat_2=45
 * ```
 *
 * ## Required Parameters
 * - `+lat_1`: Latitude of the first standard parallel.
 *
 * ## Optional Parameters
 * - `+lon_0`: Longitude of projection center. Defaults to `0`.
 * - `+lat_0`: Latitude of projection center. Defaults to `0`.
 * - `+lat_2`: Latitude of the second standard parallel.
 * - `+ellps`: Ellipsoid. Defaults to `WGS84`.
 * - `+R`: Radius of the sphere.
 * - `+x_0`: False easting. Defaults to `0`.
 * - `+y_0`: False northing. Defaults to `0`.
 * - `+k_0`: Scale factor at natural origin (for LCC 1SP) or ellipsoid scale factor (for LCC 2SP Michigan). Defaults to `1.0`.
 *
 * ## Further reading
 * - [Wikipedia on Lambert Conformal Conic](https://en.wikipedia.org/wiki/Lambert_conformal_conic_projection)
 * - [Wolfram Mathworld on Lambert Conformal Conic](http://mathworld.wolfram.com/LambertConformalConicProjection.html)
 * - [John P. Snyder "Map projections: A working manual"](https://pubs.er.usgs.gov/publication/pp1395)
 * - [ArcGIS documentation on "Lambert Conformal Conic"](http://desktop.arcgis.com/en/arcmap/10.3/guide-books/map-projections/lambert-conformal-conic.htm)
 * - [EPSG Guidance Note 7-2](http://www.epsg.org/Guidancenotes.aspx)
 *
 * ![Lambert Conformal Conic](https://github.com/Open-S2/s2-tools/blob/master/assets/proj4/projections/images/lcc.png?raw=true)
 */
export declare class LambertConformalConic extends ProjectionBase implements ProjectionTransform {
    name: string;
    static names: string[];
    ns: number;
    f0: number;
    rh: number;
    /**
     * Preps an LambertConformalConic projection
     * @param params - projection specific parameters
     */
    constructor(params?: ProjectionParams);
    /**
     * LambertConformalConic forward equations--mapping lon-lat to x-y
     * @param p - lon-lat WGS84 point
     */
    forward(p: VectorPoint): void;
    /**
     * LambertConformalConic inverse equations--mapping x-y to lon-lat
     * @param p - LambertConformalConic point
     */
    inverse(p: VectorPoint): void;
}
//# sourceMappingURL=lcc.d.ts.map