import { ScaleLinear } from 'd3-scale';
import { ZoomExtent, ZoomTransform } from './interfaces';
import { m4 } from './math';
export declare function identityZoom(): ZoomTransform;
export declare function invertX(transform: ZoomTransform, x: number): number;
export declare function invertY(transform: ZoomTransform, y: number): number;
export declare function rescaleX(transform: ZoomTransform, x: ScaleLinear<number, number>): ScaleLinear<number, number, never>;
export declare function rescaleY(transform: ZoomTransform, y: ScaleLinear<number, number>): ScaleLinear<number, number, never>;
export declare function translate(transform: ZoomTransform, x: number, y: number): m4.Matrix4x4;
export declare function defaultConstraint(transform: ZoomTransform, width: number, height: number): m4.Matrix4x4;
/**
 * Given a zoom transform, a mouse position and a wheel delta, calculate the new zoom transform.
 * Note that this does only apply the zoom extent if it is provided.
 * The translation extent is applied at a later stage.
 */
export declare function calculateTransform(zoom: ZoomTransform, x: number, y: number, wheel: number, direction: 'x' | 'y' | 'xy', zoomExtent?: ZoomExtent): m4.Matrix4x4;
//# sourceMappingURL=transform.d.ts.map