import { Selection as MosaicSelection } from '@uwdata/mosaic-core';
import { ICosmographInternalApi } from "../internal";
import { CosmographData } from "../config/interfaces";
/**
 * Represents the structure of crossfilter sets for links, points, and their intersection.
 */
export interface Crossfilter {
    links: Set<number>;
    points: Set<number>;
    intersection: Set<number>;
}
/**
 * Manages all crossfilter-based operations, such as computing and storing
 * filtered point indices from links or points, generating their intersection,
 * and tracking the Mosaic selections.
 */
export declare class CosmographCrossfilter {
    private _;
    private _linksSelection;
    private _pointsSelection;
    private _onLinksFiltered;
    private _onPointsFiltered;
    private _crossfilter;
    constructor(_: ICosmographInternalApi);
    get filtered(): Crossfilter;
    get pointsSelection(): MosaicSelection;
    get linksSelection(): MosaicSelection;
    get onLinksFiltered(): (data: CosmographData) => void;
    get onPointsFiltered(): (data: CosmographData) => void;
    get isFilteringActive(): boolean;
    /**
     * Handle new filters arriving for either links or points,
     * get the new sets of point indices, generate their intersection,
     * and update the visualization accordingly.
     */
    private _handleCrossfiltering;
    /**
     * Populate crossfilter.points or crossfilter.links with the relevant set of point indices,
     * based on the arrow table and whichever type of selection triggered the filter.
     */
    private _getSetForCrossfilter;
    /**
     * Compute the intersection of crossfilter.links and crossfilter.points.
     */
    private _getIntersection;
}