import { type Bounds } from "@excalidraw/common";
import type { LocalPoint, GlobalPoint, Vector } from "@excalidraw/math";
import type { ExcalidrawBindableElement } from "./types";
export declare const HEADING_RIGHT: Heading;
export declare const HEADING_DOWN: Heading;
export declare const HEADING_LEFT: Heading;
export declare const HEADING_UP: Heading;
export type Heading = [1, 0] | [0, 1] | [-1, 0] | [0, -1];
export declare const vectorToHeading: (vec: Vector) => Heading;
export declare const headingForPoint: <P extends GlobalPoint | LocalPoint>(p: P, o: P) => Heading;
export declare const headingForPointIsHorizontal: <P extends GlobalPoint | LocalPoint>(p: P, o: P) => boolean;
export declare const compareHeading: (a: Heading, b: Heading) => boolean;
export declare const headingIsHorizontal: (a: Heading) => boolean;
export declare const headingIsVertical: (a: Heading) => boolean;
export declare const headingForPointFromElement: <Point extends GlobalPoint>(element: Readonly<ExcalidrawBindableElement>, aabb: Readonly<Bounds>, p: Readonly<Point>) => Heading;
export declare const flipHeading: (h: Heading) => Heading;