import type { Point } from 'framer-motion';
import type { AreaSeriesQueryResult, DotSeriesQueryResult, LineSeriesQueryResult, SeriesToQuadtree } from '../context/XYChartOverlayPerformance.context.js';
import type { AxisIdToScales } from '../context/XYChartScales.context.js';
import { type AnyLinearSeries, type AreaSeriesWithDatapoints, type AxisIdToScaleDomain, type DotSeriesWithDatapoints, type LineSeriesWithDatapoints, type SeriesToMetadata, type MapDatapoints } from '../types/xy-chart-internals.js';
/**
 * Build quadtrees for fast nearest-point queries for each linear series.
 * Filters out gap datapoints and points outside current x/y range.
 *
 * @param seriesWithDatapoints - Array of linear (dot/line/area) series.
 * @param axisIdToScales - Scale lookup keyed by axis id.
 * @param datapointToMetadata - Map with metadata (e.g., gap flags).
 * @param seriesToMetadata - Map from series to its metadata.
 * @param axisIdToScaleDomain - Domain lookup keyed by axis id.
 * @returns Map from series id to its quadtree.
 */
export declare function buildQuadtrees(seriesWithDatapoints: AnyLinearSeries[], axisIdToScales: AxisIdToScales, datapointToMetadata: MapDatapoints, seriesToMetadata: SeriesToMetadata, axisIdToScaleDomain: AxisIdToScaleDomain): SeriesToQuadtree;
type DebouncedQuadtrees = (seriesWithDatapoints: AnyLinearSeries[], axisIdToScales: AxisIdToScales, datapointsMetadata: MapDatapoints, seriesToMetadata: SeriesToMetadata, axisIdToScaleDomain: AxisIdToScaleDomain, onDone: (trees: SeriesToQuadtree) => void) => void;
export declare function getDebouncedQuadtrees(key: string): DebouncedQuadtrees;
export declare function cancelDebouncedQuadtrees(key: string): void;
/**
 * Euclidean distance between two (x,y) points.
 *
 * @param x0 - First point x.
 * @param x1 - Second point x.
 * @param y0 - First point y.
 * @param y1 - Second point y.
 * @returns Distance value.
 */
export declare function distanceBetweenTwoPoints(x0: number, x1: number, y0: number, y1: number): number;
/**
 * Build a query function that returns the closest datapoint
 * among provided series to a given pixel position.
 * Stops early if within DEFAULT_DATA_POINT_RADIUS.
 *
 * @param seriesIdToQuadtree - Map of series id to quadtree.
 * @param axisIdToScales - Axis scale lookup.
 * @returns QueryClosest function implementation.
 */
export declare function buildQueryClosest(seriesIdToQuadtree: SeriesToQuadtree, axisIdToScales: AxisIdToScales, seriesToMetadata: SeriesToMetadata, axisIdToScaleDomain: AxisIdToScaleDomain, datapointToMetadata: MapDatapoints): {
    (arrayOfSeries: DotSeriesWithDatapoints[], position: Point): DotSeriesQueryResult | undefined;
    (arrayOfSeries: LineSeriesWithDatapoints[], position: Point): LineSeriesQueryResult | undefined;
    (arrayOfSeries: AreaSeriesWithDatapoints[], position: Point): AreaSeriesQueryResult | undefined;
};
export {};