import L from 'leaflet';
import type { Map } from 'leaflet';
interface GridPoint {
    lat: number;
    lng: number;
}
export declare class GridSystem {
    private map;
    private gridWidth;
    private gridHeight;
    constructor(map: Map, gridWidth?: number, gridHeight?: number);
    private handleZoomChange;
    private calculateGridWidthBasedOnZoom;
    private calculateGridHeightBasedOnZoom;
    /**
     * 计算给定点所属网格的索引。
     * @param point - 坐标点
     */
    getGridIndex(point: L.LatLng): {
        gridLngIndex: number;
        gridLatIndex: number;
    };
    /**
     * 构建网格存储结构
     * @param bounds - 数据分布的地理边界
     */
    initializeGrid(): GridPoint[][];
    /**
     * 将坐标点集合进行网格化筛选，存储至指定网格
     * @param points - 原始坐标点集合
     */
    filterAndStorePoints(points: L.LatLng[]): L.LatLng[];
    getFilteredPoints(grid: GridPoint[][]): L.LatLng[];
}
export {};