gis-tools-ts
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A collection of geospatial tools primarily designed for WGS84, Web Mercator, and S2.
74 lines • 2.18 kB
TypeScript
import { ProjectionBase } from './index.js';
import type { VectorPoint } from '../../geometry/index.js';
import type { ProjectionParams, ProjectionTransform } from './index.js';
/**
* # Stereographic
*
* **Classification**: Azimuthal
*
* **Available forms**: Forward and inverse, spherical and ellipsoidal
*
* **Defined area**: Global
*
* **Alias**: stere
*
* **Domain**: 2D
*
* **Input type**: Geodetic coordinates
*
* **Output type**: Projected coordinates
*
* ## Projection String
* ```ini
* +proj=stere +lat_0=90 +latTs=75
* ```
*
* Note:
* This projection method gives different results than the :ref:`sterea`
* method in the non-polar cases (i.e. the oblique and equatorial case). The later
* projection method is the one referenced by EPSG as "Oblique Stereographic".
*
* ## Required Parameters
* - None
*
* ## Optional Parameters
* - `+lat_0=<value>`: Latitude of origin.
* - `+latTs=<value>`: Latitude where scale is not distorted.
* - `+k_0=<value>`: Scale factor.
* - `+lon_0=<value>`: Central meridian.
* - `+ellps=<value>`: Ellipsoid used.
* - `+R=<value>`: Radius of the projection sphere.
* - `+x_0=<value>`: False easting.
* - `+y_0=<value>`: False northing.
*
* 
*/
export declare class StereographicSouthPole extends ProjectionBase implements ProjectionTransform {
#private;
name: string;
static names: string[];
coslat0: number;
sinlat0: number;
con: number;
cons: number;
ms1: number;
X0: number;
cosX0: number;
sinX0: number;
/**
* Preps an StereographicSouthPole projection
* @param params - projection specific parameters
*/
constructor(params?: ProjectionParams);
/**
* StereographicSouthPole forward equations--mapping lon-lat to x-y
* @param p - lon-lat WGS84 point
*/
forward(p: VectorPoint): void;
/**
* StereographicSouthPole inverse equations--mapping x-y to lon-lat
* @param p - StereographicSouthPole point
*/
inverse(p: VectorPoint): void;
}
//# sourceMappingURL=stere.d.ts.map