import { IRect } from './interfaces';
export declare const splitNode: (node: HTMLElement, splitter: any) => any;
export declare const getRect: (element: HTMLElement) => IRect;
export declare const chord: (r: number, θ: any) => number;
export declare const radiansToDegrees: (angleInDegrees: number) => number;
export declare const degreesToRadians: (angleInDegrees: number) => number;
export declare const sagitta: (r: number, θ: any) => number;
export declare const getLetterRotations: (metrics: any, r: number) => any;