import LogicFlow from '../LogicFlow';
import PointTuple = LogicFlow.PointTuple;
export declare function snapToGrid(point: number, gridSize: number, snapGrid: boolean): number;
export declare function getGridOffset(distance: number, gridSize: number): number;
/**
 * 多边形设置 points 后，坐标平移至原点 并 根据 width、height 缩放
 * @param points
 * @param width
 * @param height
 */
export declare function normalizePolygon(points?: PointTuple[], width?: number, height?: number): PointTuple[];