import { CartesianScale, DataValue, DataAccessor, Getter } from './types';
export declare const scaleZero: (scale: CartesianScale) => string | 0;
export declare const scaleStep: (scale: CartesianScale) => number;
export declare function computePos(value: DataValue, scale: CartesianScale, position?: 'center' | 'start' | 'end' | number): number;
export declare function createDataScale<T, U extends DataValue>(dataAccessor: DataAccessor<T> | undefined, scale: CartesianScale, defaultValue: U, position?: 'center' | 'start' | 'end' | number): (d: T) => number | U;
export declare function combineGetters<T, U extends number>(getters: (Getter<T, U> | undefined)[]): (d: T) => number;