import { Units, BBox, Feature, Polygon, FeatureCollection, Properties } from "@turf/helpers";
/**
 * Takes a bounding box and a cell depth and returns a set of triangular {@link Polygon|polygons} in a grid.
 *
 * @name triangleGrid
 * @param {Array<number>} bbox extent in [minX, minY, maxX, maxY] order
 * @param {number} cellSide dimension of each cell
 * @param {Object} [options={}] Optional parameters
 * @param {string} [options.units='kilometers'] used in calculating cellSide, can be degrees, radians, miles, or kilometers
 * @param {Feature<Polygon>} [options.mask] if passed a Polygon or MultiPolygon, the grid Points will be created only inside it
 * @param {Object} [options.properties={}] passed to each point of the grid
 * @returns {FeatureCollection<Polygon>} grid of polygons
 * @example
 * var bbox = [-95, 30 ,-85, 40];
 * var cellSide = 50;
 * var options = {units: 'miles'};
 *
 * var triangleGrid = turf.triangleGrid(bbox, cellSide, options);
 *
 * //addToMap
 * var addToMap = [triangleGrid];
 */
declare function triangleGrid<P = Properties>(bbox: BBox, cellSide: number, options?: {
    units?: Units;
    properties?: P;
    mask?: Feature<Polygon> | Polygon;
}): FeatureCollection<Polygon, P>;
export default triangleGrid;