import type { ConnectionMode } from 'modern-idoc';
import type { Vector2Like } from 'modern-path2d';
import { Path2D } from 'modern-path2d';
export type { ConnectionMode };
export interface ConnectionEndpointBox {
    min: Vector2Like;
    size: Vector2Like;
}
export interface ConnectionEndpoint {
    /** world-space anchor point */
    point: Vector2Like;
    /** outward unit direction the line leaves the anchor by; undefined = auto-infer */
    dir?: Vector2Like;
    /**
     * Axis-aligned bbox of the endpoint's node; lets the orthogonal router avoid
     * drawing the connecting segment through the source/target body.
     */
    bbox?: ConnectionEndpointBox;
}
export interface ConnectionRouteOptions {
    /** perpendicular stub length the line leaves each anchor by (px) */
    stub?: number;
}
/** Nearest axis-aligned unit vector for an arbitrary delta. */
export declare function axisDir(dx: number, dy: number): Vector2Like;
/**
 * Build the world-space path that routes a connection from `start` to `end`
 * under the given mode.
 */
export declare function routeConnection(mode: ConnectionMode, start: ConnectionEndpoint, end: ConnectionEndpoint, options?: ConnectionRouteOptions): Path2D;