import type { Rect } from '../core/layout';
import type { PositionedArc, SunburstNode } from '../core/utils/hierarchy-layout';
export type TreemapNode<Metadata = Record<string, unknown>> = SunburstNode<Metadata>;
export type TreemapArc<Metadata = Record<string, unknown>> = PositionedArc<Metadata>;
interface TilePadding {
    padding_inner: number;
    padding_top: number;
    padding_outer: number;
}
export declare function tile_rects<Metadata>(arcs: readonly PositionedArc<Metadata>[], root_idx: number, size: {
    width: number;
    height: number;
}, pad: TilePadding): Rect[];
export interface Tiling {
    rects: readonly Rect[];
    arcs: readonly {
        id: string | number;
        parent_idx: number | null;
    }[];
}
export declare function align_tiling(prev: Tiling, next: Tiling): Rect[];
export declare function lerp_rects(prev: readonly Rect[], next: readonly Rect[], t: number): Rect[];
export {};