s2-tools/dist/proj4/projections/vandg.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 '.';
/**
 * # van der Grinten (I)
 *
 * **Classification**: Miscellaneous
 *
 * **Available forms**: Forward and inverse, spherical projection
 *
 * **Defined area**: Global
 *
 * **Alias**: vandg
 *
 * **Domain**: 2D
 *
 * **Input type**: Geodetic coordinates
 *
 * **Output type**: Projected coordinates
 *
 * ## Projection String
 * ```
 * +proj=vandg
 * ```
 *
 * ## Parameters
 *
 * All parameters are optional.
 *
 * - `+lon_0=<value>`: Central meridian.
 * - `+R=<value>`: Radius of the sphere.
 * - `+x_0=<value>`: False easting.
 * - `+y_0=<value>`: False northing.
 *
 * ![van der Grinten (I)](https://github.com/Open-S2/s2-tools/blob/master/assets/proj4/projections/images/vandg.png?raw=true)
 */
export declare class VanDerGrinten extends ProjectionBase implements ProjectionTransform {
    name: string;
    static names: string[];
    R: number;
    /**
     * Preps an VanDerGrinten projection
     * @param params - projection specific parameters
     */
    constructor(params?: ProjectionParams);
    /**
     * VanDerGrinten forward equations--mapping lon-lat to x-y
     * @param p - lon-lat WGS84 point
     */
    forward(p: VectorPoint): void;
    /**
     * VanDerGrinten inverse equations--mapping x-y to lon-lat
     * @param p - VanDerGrinten point
     */
    inverse(p: VectorPoint): void;
}
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