import type { Area, Shape } from "../fields.types.ts";
/** What a part of a plan adds. */
export interface Parts {
    areas: Area[];
    shapes: Shape[];
}
export declare const emptyParts: () => Parts;
/** Add `more` to `into`. */
export declare function addParts(into: Parts, more: Parts): void;
/** A box in metres. */
export interface MBox {
    x0: number;
    y0: number;
    x1: number;
    y1: number;
}
/** A named part of the plan to crop to, in metres: one box, or one at each end (`left` and `right` as the surface is drawn wide). */
export type MRange = MBox | {
    left: MBox;
    right: MBox;
};
/** A part of the plan to label (`landmarks`): where it is, in metres, and the side of the drawing its label stands on. */
export interface MMark {
    id: string;
    x: number;
    y: number;
    side: "top" | "bottom";
}
export declare const grow: (b: MBox, m: number) => MBox;
export declare const union: (boxes: readonly MBox[]) => MBox;
export declare const boxOf: (cx: number, cy: number, w: number, h: number) => MBox;
export declare const shifted: (b: MBox, dx: number, dy: number) => MBox;