export default XYZ;
export type Options = {
    /**
     * Attributions.
     */
    attributions?: import("./Source.js").AttributionLike | undefined;
    /**
     * Attributions are collapsible.
     */
    attributionsCollapsible?: boolean | undefined;
    /**
     * Initial tile cache size. Will auto-grow to hold at least the number of tiles in the viewport.
     */
    cacheSize?: number | undefined;
    /**
     * The `crossOrigin` attribute for loaded images.  Note that
     * you must provide a `crossOrigin` value if you want to access pixel data with the Canvas renderer.
     * See https://developer.mozilla.org/en-US/docs/Web/HTML/CORS_enabled_image for more detail.
     */
    crossOrigin?: string | null | undefined;
    /**
     * Use interpolated values when resampling.  By default,
     * linear interpolation is used when resampling.  Set to false to use the nearest neighbor instead.
     */
    interpolate?: boolean | undefined;
    /**
     * Whether the layer is opaque.
     */
    opaque?: boolean | undefined;
    /**
     * Projection.
     */
    projection?: import("../proj.js").ProjectionLike;
    /**
     * Maximum allowed reprojection error (in pixels).
     * Higher values can increase reprojection performance, but decrease precision.
     */
    reprojectionErrorThreshold?: number | undefined;
    /**
     * Optional max zoom level. Not used if `tileGrid` is provided.
     */
    maxZoom?: number | undefined;
    /**
     * Optional min zoom level. Not used if `tileGrid` is provided.
     */
    minZoom?: number | undefined;
    /**
     * Optional tile grid resolution at level zero. Not used if `tileGrid` is provided.
     */
    maxResolution?: number | undefined;
    /**
     * Tile grid.
     */
    tileGrid?: import("../tilegrid/TileGrid.js").default | undefined;
    /**
     * Optional function to load a tile given a URL. The default is
     * ```js
     * function(imageTile, src) {
     * imageTile.getImage().src = src;
     * };
     * ```
     */
    tileLoadFunction?: import("../Tile.js").LoadFunction | undefined;
    /**
     * The pixel ratio used by the tile service.
     * For example, if the tile service advertizes 256px by 256px tiles but actually sends 512px
     * by 512px images (for retina/hidpi devices) then `tilePixelRatio`
     * should be set to `2`.
     */
    tilePixelRatio?: number | undefined;
    /**
     * The tile size used by the tile service.
     * Not used if `tileGrid` is provided.
     */
    tileSize?: number | import("../size.js").Size | undefined;
    /**
     * The size in pixels of the gutter around image tiles to ignore.
     * This allows artifacts of rendering at tile edges to be ignored.
     * Supported images should be wider and taller than the tile size by a value of `2 x gutter`.
     */
    gutter?: number | undefined;
    /**
     * Optional function to get
     * tile URL given a tile coordinate and the projection.
     * Required if `url` or `urls` are not provided.
     */
    tileUrlFunction?: import("../Tile.js").UrlFunction | undefined;
    /**
     * URL template. Must include `{x}`, `{y}` or `{-y}`,
     * and `{z}` placeholders. A `{?-?}` template pattern, for example `subdomain{a-f}.domain.com`,
     * may be used instead of defining each one separately in the `urls` option.
     */
    url?: string | undefined;
    /**
     * An array of URL templates.
     */
    urls?: string[] | undefined;
    /**
     * Whether to wrap the world horizontally.
     */
    wrapX?: boolean | undefined;
    /**
     * Duration of the opacity transition for rendering.
     * To disable the opacity transition, pass `transition: 0`.
     */
    transition?: number | undefined;
    /**
     * Choose whether to use tiles with a higher or lower zoom level when between integer
     * zoom levels. See {@link module :ol/tilegrid/TileGrid~TileGrid#getZForResolution}.
     */
    zDirection?: number | import("../array.js").NearestDirectionFunction | undefined;
};
/**
 * @typedef {Object} Options
 * @property {import("./Source.js").AttributionLike} [attributions] Attributions.
 * @property {boolean} [attributionsCollapsible=true] Attributions are collapsible.
 * @property {number} [cacheSize] Initial tile cache size. Will auto-grow to hold at least the number of tiles in the viewport.
 * @property {null|string} [crossOrigin] The `crossOrigin` attribute for loaded images.  Note that
 * you must provide a `crossOrigin` value if you want to access pixel data with the Canvas renderer.
 * See https://developer.mozilla.org/en-US/docs/Web/HTML/CORS_enabled_image for more detail.
 * @property {boolean} [interpolate=true] Use interpolated values when resampling.  By default,
 * linear interpolation is used when resampling.  Set to false to use the nearest neighbor instead.
 * @property {boolean} [opaque=false] Whether the layer is opaque.
 * @property {import("../proj.js").ProjectionLike} [projection='EPSG:3857'] Projection.
 * @property {number} [reprojectionErrorThreshold=0.5] Maximum allowed reprojection error (in pixels).
 * Higher values can increase reprojection performance, but decrease precision.
 * @property {number} [maxZoom=42] Optional max zoom level. Not used if `tileGrid` is provided.
 * @property {number} [minZoom=0] Optional min zoom level. Not used if `tileGrid` is provided.
 * @property {number} [maxResolution] Optional tile grid resolution at level zero. Not used if `tileGrid` is provided.
 * @property {import("../tilegrid/TileGrid.js").default} [tileGrid] Tile grid.
 * @property {import("../Tile.js").LoadFunction} [tileLoadFunction] Optional function to load a tile given a URL. The default is
 * ```js
 * function(imageTile, src) {
 *   imageTile.getImage().src = src;
 * };
 * ```
 * @property {number} [tilePixelRatio=1] The pixel ratio used by the tile service.
 * For example, if the tile service advertizes 256px by 256px tiles but actually sends 512px
 * by 512px images (for retina/hidpi devices) then `tilePixelRatio`
 * should be set to `2`.
 * @property {number|import("../size.js").Size} [tileSize=[256, 256]] The tile size used by the tile service.
 * Not used if `tileGrid` is provided.
 * @property {number} [gutter=0] The size in pixels of the gutter around image tiles to ignore.
 * This allows artifacts of rendering at tile edges to be ignored.
 * Supported images should be wider and taller than the tile size by a value of `2 x gutter`.
 * @property {import("../Tile.js").UrlFunction} [tileUrlFunction] Optional function to get
 * tile URL given a tile coordinate and the projection.
 * Required if `url` or `urls` are not provided.
 * @property {string} [url] URL template. Must include `{x}`, `{y}` or `{-y}`,
 * and `{z}` placeholders. A `{?-?}` template pattern, for example `subdomain{a-f}.domain.com`,
 * may be used instead of defining each one separately in the `urls` option.
 * @property {Array<string>} [urls] An array of URL templates.
 * @property {boolean} [wrapX=true] Whether to wrap the world horizontally.
 * @property {number} [transition=250] Duration of the opacity transition for rendering.
 * To disable the opacity transition, pass `transition: 0`.
 * @property {number|import("../array.js").NearestDirectionFunction} [zDirection=0]
 * Choose whether to use tiles with a higher or lower zoom level when between integer
 * zoom levels. See {@link module:ol/tilegrid/TileGrid~TileGrid#getZForResolution}.
 */
/**
 * @classdesc
 * Layer source for tile data with URLs in a set XYZ format that are
 * defined in a URL template. By default, this follows the widely-used
 * Google grid where `x` 0 and `y` 0 are in the top left. Grids like
 * TMS where `x` 0 and `y` 0 are in the bottom left can be used by
 * using the `{-y}` placeholder in the URL template, so long as the
 * source does not have a custom tile grid. In this case
 * a `tileUrlFunction` can be used, such as:
 * ```js
 *  tileUrlFunction: function(coordinate) {
 *    return 'http://mapserver.com/' + coordinate[0] + '/' +
 *      coordinate[1] + '/' + (-coordinate[2] - 1) + '.png';
 *  }
 * ```
 * @api
 */
declare class XYZ extends TileImage {
    /**
     * @param {Options} [options] XYZ options.
     */
    constructor(options?: Options | undefined);
    /**
     * @private
     * @type {number}
     */
    private gutter_;
}
import TileImage from './TileImage.js';
//# sourceMappingURL=XYZ.d.ts.map