import { PlaneXY } from '../../common/plane-xy';
import { ScreenXY } from '../../common/screen-xy';
export declare class Transformation {
    _a: number;
    _b: number;
    _c: number;
    _d: number;
    constructor(a: any, b: number, c: number, d: number);
    transform(planeXY: PlaneXY, scale?: number): ScreenXY;
    untransform(screenXY: ScreenXY, scale?: number): PlaneXY;
}