/**
 * 投影坐标系定义
 * 支持中国地方坐标系
 */
export declare const PROJECTIONS: {
    EPSG4549: string;
    EPSG4490: string;
    EPSG4214: string;
    EPSG4610: string;
    EPSG3857: string;
    EPSG4326: string;
};