import { path, line, poly } from "../fields.kit.ts";
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 rink 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;
/** The path of a stadium: two semicircles of radius `r` joined by straights of length `s`, about the origin, drawn from the top left, clockwise as the eye sees it. */
export declare const stadiumD: (s: number, r: number) => string;
/** A point of a curve of the oval: `side` is the right-hand curve (centre at x = s/2, entered at the bottom) or the left-hand one (centre at x = -s/2, entered at the top); `t` the angle from the entrance. */
export declare function curvePoint(s: number, side: "right" | "left", r: number, t: number): [number, number];
/** The path of an arc of a curve of the oval from the angle `t0` to `t1`, in the way the skaters go (counter-clockwise as the eye sees it). */
export declare function curveD(s: number, side: "right" | "left", r: number, t0: number, t1: number): string;
/**
 * The blocks of a curve as dots: a dashed path with a zero dash and round caps, so that a dot of the line's width stands every `near` metres for the first `nearLength` metres from the entrance and
 * every `far` metres after, the cone at the entrance a dot of its own (Rule 226).
 */
export declare function blocksOf(id: string, s: number, side: "right" | "left", r: number, near: number, nearLength: number, far: number, width: number): Shape[];
export { line, poly, path };