import { PointReducer, PointReducerConfig, PointReducerInstance, PointReducerAccumulator } from "./PointReducer";
import { RenderingContext } from "../../ui/RenderingContext";
import { NumberProp, Bind, Prop, DataRecord } from "../../ui/Prop";
import { AccessorChain } from "../../data/createAccessorModelProxy";
export interface SnapAccumulator extends PointReducerAccumulator {
    cursor: {
        x: number | null;
        y: number | null;
        mapped: boolean;
        mappedX?: number | null;
        mappedY?: number | null;
    };
    dist: number;
    snapX: any;
    snapY: any;
    snapRecord?: any;
    xAxis: any;
    yAxis: any;
}
export interface SnapPointFinderInstance extends PointReducerInstance<SnapAccumulator> {
    xAxis?: any;
    yAxis?: any;
}
export interface SnapPointFinderConfig extends PointReducerConfig {
    /** Cursor X value. */
    cursorX?: NumberProp;
    /** Cursor Y value */
    cursorY?: NumberProp;
    /** A binding used to receive the x value of the nearest point.*/
    snapX?: Bind | AccessorChain<number | null | undefined> | AccessorChain<string | null | undefined>;
    /** A binding used to receive the y value of the nearest point. */
    snapY?: Bind | AccessorChain<number | null | undefined> | AccessorChain<string | null | undefined>;
    /** A binding used to receive the record prop */
    snapRecord?: Prop<DataRecord>;
    /** Maximum distance between cursor and the snap point. Default value is 50. Adjust accordingly for large distances, e.g. set to Infinity when using TimeAxis */
    maxDistance?: number;
    /** A function used to convert x values into numeric format. Commonly used with dates. */
    convertX?: (value: number | string) => number;
    /** A function used to convert y values into numeric format. Commonly used with dates. */
    convertY?: (value: number | string) => number;
    /** Name of the x-axis. Default is 'x'. */
    xAxis?: string;
    /** Name of the y-axis. Default is 'y'. */
    yAxis?: string;
}
export declare class SnapPointFinder extends PointReducer<SnapAccumulator> {
    maxDistance: number;
    convertX: (value: any) => number;
    convertY: (value: any) => number;
    xAxis: string;
    yAxis: string;
    constructor(config?: SnapPointFinderConfig);
    declareData(...args: any[]): void;
    explore(context: RenderingContext, instance: SnapPointFinderInstance): void;
    onInitAccumulator: (acc: SnapAccumulator, { data, xAxis, yAxis }: SnapPointFinderInstance) => void;
    onMap: (acc: SnapAccumulator, x: any, y: any, name: string, p: any) => void;
    onReduce: (acc: SnapAccumulator, instance: PointReducerInstance<SnapAccumulator>) => void;
}
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