import { RectangleGeometry } from '../../../model';
/**
 * Rotates a point around a center by the given angle (in rad).
 */
export declare const rotatePoint: (point: [number, number], center: [number, number], angle: number) => [number, number];
/**
 * Gets the four corner points of a rotated rectangle in world space.
 */
export declare const getRotatedCorners: (x: number, y: number, w: number, h: number, rot?: number) => [[number, number], [number, number], [number, number], [number, number]];
/**
 * Calculates the position of the rotation handle.
 */
export declare const getRotationHandlePosition: (geom: RectangleGeometry, offset: number) => [number, number];
/**
 * Transforms a movement delta from world coords to the rectangle's
 * local (non-rotated) coordinate system.
 */
export declare const transformDeltaToLocalCoords: (deltaX: number, deltaY: number, rot: number) => [number, number];
/**
 * Calculates the rotation angle between a point and the origin, relative to a center.
 */
export declare const angleFromPoints: (point1: [number, number], point2: [number, number], center: [number, number]) => number;
/**
 * Snaps an angle to the nearest 45-degree increment
 */
export declare const snapAngle: (angle: number, inc?: number) => number;