import L from 'leaflet';
import type { MyMap } from 'map-sdk-leaflet/es/sdk/ShipxyAPISDK';
interface Ship {
    shipid: string;
    mmsi: string;
    lat: number;
    lng: number;
    lastdyn: Date;
    lastdyn_active: boolean;
    country?: number;
}
declare class AreaShipsDataGridSymbol extends L.Class {
    options: {
        pk: string;
        latlngk: string;
        grid_size: number;
    };
    _map: MyMap;
    _items: Record<string, Ship>;
    _items_count: number;
    _index_grid: {
        [key: string]: {
            [key: string]: Ship;
        };
    };
    _index_mmsi: {
        [key: string]: string;
    };
    private _indexGrid;
    private _gridShipsViewFilter;
    constructor(map: MyMap, defaultOptions?: Partial<AreaShipsDataGridSymbol['options']>);
    _getItemsKey(data: Ship): string;
    _getMmsiKey(data: Ship): string;
    _getGridKey(data: Ship): string;
    _getGridByBounds05(bounds: L.LatLngBounds): string[];
    _getGridByBounds(bounds: L.LatLngBounds): string[];
    getItemByBounds(bound: L.LatLngBounds): Ship[];
    getItemByBoundsForChouXi(bounds: L.LatLngBounds, zoom: number, limit: number): {
        lat: number;
        lng: number;
    }[] | null;
    /**
     * 计算中国偏移坐标的方法提取为
     * @param areaBounds
     * @returns
     */
    private adjustBoundsForChina;
    /**
     * 获取目标网格的方法提取为
     * @param bounds
     * @param gridSize
     * @returns
     */
    private getTargetGrids;
    updateDatas(data: Ship | Ship[], isRemove?: boolean): void;
    addIndex(data: Ship): void;
    removeIndex(data: Ship): void;
    hasItem(data: Ship): boolean;
    getItemByPK(shipid: number): Ship | null;
    getItemByObj(data: Ship): Ship | null;
    getItemCount(): number;
    getItemByMMSI(mmsi: string): Ship | null;
    deleteAll(): void;
    deleteByPK(data: any): void;
}
declare const _default: (map: MyMap, options: Partial<AreaShipsDataGridSymbol['options']>) => AreaShipsDataGridSymbol;
export default _default;