import { AccessorChain } from "../../data/createAccessorModelProxy";
import { Bind, Prop } from "../../ui/Prop";
import { PointReducer, PointReducerAccumulator, PointReducerConfig, PointReducerInstance } from "./PointReducer";
export interface ValueAtAccumulator extends PointReducerAccumulator {
    at: number;
    left?: {
        x: number;
        y: number;
        d: number;
    };
    right?: {
        x: number;
        y: number;
        d: number;
    };
}
export interface ValueAtFinderConfig extends PointReducerConfig {
    /** X axis probe value. */
    at?: Prop<string | number | null | undefined>;
    /** A binding used to receive the measured y axis value */
    value?: Bind | AccessorChain<number | null | undefined>;
    /** A function used to convert x values into numeric format. Commonly used with dates. */
    convert?: (value: number | string) => number;
}
/** Calculate value at a given point on the graph */
export declare class ValueAtFinder extends PointReducer<ValueAtAccumulator> {
    convert: (value: any) => number;
    constructor(config?: ValueAtFinderConfig);
    declareData(...args: any[]): void;
    onInitAccumulator: (acc: ValueAtAccumulator, { data }: PointReducerInstance<ValueAtAccumulator>) => void;
    onMap: (acc: ValueAtAccumulator, x: any, y: any, name: string) => void;
    onReduce: (acc: ValueAtAccumulator, instance: PointReducerInstance<ValueAtAccumulator>) => void;
}
//# sourceMappingURL=ValueAtFinder.d.ts.map