import type { BBox, Point } from './types';
export declare function box(x1: number, y1: number, x2: number, y2: number): BBox;
export declare function length(x1: number, y1: number, x2: number, y2: number): number;
export declare function pointAt(x1: number, y1: number, x2: number, y2: number, t: number): Point;
export declare function pointDistance(x1: number, y1: number, x2: number, y2: number, x: number, y: number): number;
export declare function pointToLine(x1: number, y1: number, x2: number, y2: number, x: number, y: number): number;
export declare function tangentAngle(x1: number, y1: number, x2: number, y2: number): number;
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