DefinitelyTyped/types/polylabel/index.d.ts
2017-03-24 14:27:52 -07:00

35 lines
1.3 KiB
TypeScript

// Type definitions for polylabel 1.0.0
// Project: https://github.com/mapbox/polylabel
// Definitions by: Denis Carriere <https://github.com/DenisCarriere>
// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
/**
* polylabel
*
* A fast algorithm for finding polygon pole of inaccessibility, the most distant internal point from
* the polygon outline (not to be confused with centroid), implemented as a JavaScript library.
* Useful for optimal placement of a text label on a polygon.
* It's an iterative grid algorithm, inspired by paper by Garcia-Castellanos & Lombardo, 2007.
* Unlike the one in the paper, this algorithm:
*
* - guarantees finding global optimum within the given precision
* - is many times faster (10-40x)
*/
declare module "polylabel" {
/**
* Polylabel returns the pole of inaccessibility coordinate in [x, y] format.
*
* @name polylabel
* @function
* @param {Array<number>} polygon - Given polygon coordinates in GeoJSON-like format
* @param {number} precision - Precision (1.0 by default)
* @param {boolean} debug - Debugging for Console
* @return {Array<number>}
* @example
* var p = polylabel(polygon, 1.0);
*/
function polylabel(polygon: number[][][], precision?: number, debug?: boolean): number[];
namespace polylabel {}
export = polylabel;
}