import { ScaleBand } from 'd3-scale';
import type { Point } from '../../core/types/point.js';
import type { DimensionXYPoint } from '../types/categorical-bar-chart-data.js';
import type { CategoricalValueScales, Layout } from '../types/categorical-bar-chart.js';
/**
 * Retrieve the closest point in a stacked chart considering thresholds
 * and hovering the corresponding dimension.
 *
 * @param layout - layout mode of the chart
 * @param mousePosition - mouse coordinate
 * @param closestDimensionPoints - closest dimension points
 * @param valueScale - value scale
 * @param categoryScale - category scale
 * @returns closest point to the mouse coordinate in a stacked chart
 */
export declare const findClosestPointInStackedChart: (layout: Layout, mousePosition: Point, closestDimensionPoints: DimensionXYPoint[], valueScale: CategoricalValueScales, categoryScale: ScaleBand<string>) => DimensionXYPoint | undefined;