import { LatLng } from "../types/coordinate.types";
import { RouteSegment, RoutePointWithRadius, GridCell, SpatialBounds } from "../types/spatial.types";
import { Radius } from "../types/radius.types";
export declare class SpatialGridManager {
    private static validateLatitude;
    private static validateLongitude;
    private static validateCoordinate;
    private static validateRadius;
    static calculateSegmentBounds(startPoint: LatLng, endPoint: LatLng): SpatialBounds;
    static calculatePointBounds(centerPoint: LatLng, searchRadius: Radius): SpatialBounds;
    static buildSegmentSpatialIndex(routeSegments: RouteSegment[], searchTolerance: Radius): {
        spatialIndex: Map<string, RouteSegment[]>;
        cellSize: number;
    };
    static buildPointSpatialIndex(pointsWithRadius: RoutePointWithRadius[]): {
        spatialIndex: Map<string, RoutePointWithRadius[]>;
        cellSize: number;
    };
    static findNearbySegments(spatialGridConfig: {
        grid: Map<string, RouteSegment[]>;
        cellSize: number;
    }, searchPoint: LatLng, searchRadius: Radius): RouteSegment[];
    static findNearbyPoints(spatialGridConfig: {
        grid: Map<string, RoutePointWithRadius[]>;
        cellSize: number;
    }, searchPoint: LatLng, searchRadius: Radius): RoutePointWithRadius[];
    static generateGridCellsForBounds(bounds: SpatialBounds, cellSize: number): GridCell[];
    static getCellKeyForPoint(point: LatLng, cellSize: number): string;
    static getAdjacentCellKeys(centerCell: GridCell): GridCell[];
    static getAdjacentGridCells(centerCell: GridCell): GridCell[];
}