import { CreateTransformer } from '../type';
/**
 * Applies cartesian fisheye transforms for the first dimension of vector2.
 * @param params [focus, distortion]
 * @param x x of the the bounding box of coordinate
 * @param y y of the the bounding box of coordinate
 * @param width width of the the bounding box of coordinate
 * @param height height of the the bounding box of coordinate
 * @returns transformer
 */
export declare const fisheyeX: CreateTransformer;
/**
 * Applies cartesian fisheye transforms for the second dimension of vector2.
 * @param params [focus, distortion]
 * @param x x of the the bounding box of coordinate
 * @param y y of the the bounding box of coordinate
 * @param width width of the the bounding box of coordinate
 * @param height height of the the bounding box of coordinate
 * @returns transformer
 */
export declare const fisheyeY: CreateTransformer;
/**
 * Applies cartesian fisheye transforms for both dimensions of vector2.
 * @param params [focusX, focusY, distortionX, distortionY]
 * @param x x of the the bounding box of coordinate
 * @param y y of the the bounding box of coordinate
 * @param width width of the the bounding box of coordinate
 * @param height height of the the bounding box of coordinate
 * @returns transformer
 */
export declare const fisheye: CreateTransformer;
/**
 * Applies circular fisheye transforms.
 * @param params [focusX, focusY, radius, distortion, isVisual?]
 * @param x x of the the bounding box of coordinate
 * @param y y of the the bounding box of coordinate
 * @param width width of the the bounding box of coordinate
 * @param height height of the the bounding box of coordinate
 * @returns transformer
 */
export declare const fisheyeCircular: CreateTransformer;