import { type Box, type Point } from './geometry.js';
import type { Corner } from './types.js';
export interface Surface {
    element: HTMLElement;
    box: Box;
    corner: Corner;
    span: number;
    ink: string;
    clip: Path2D;
    anchor: Point;
    home: Point;
    born: number;
    radius: number;
}
export declare function isVisible(element: HTMLElement, point: Point, doc: Document): boolean;
export declare function measureSurface(element: HTMLElement, index: number, span: number, color: string, born: number, doc: Document, win: Window): Surface | null;
//# sourceMappingURL=layers.d.ts.map