/** @packageDocumentation
 * @module OrbitGT
 */
declare type int32 = number;
declare type float64 = number;
import { AList } from "../../system/collection/AList";
import { CRS } from "./CRS";
import { Operation } from "./Operation";
import { Unit } from "./Unit";
/**
 * Class Registry defines the EPSG registry of coordinate reference systems (CRS).
 *
 * @version 1.0 December 2019
 */
/** @internal */
export declare class Registry {
    /** The name of the unit table */
    private static readonly _TABLE_UNIT;
    private static readonly _COL_COUNT_UNIT;
    private static readonly _COL_UNIT_CODE;
    private static readonly _COL_UNIT_NAME;
    private static readonly _COL_UNIT_TYPE;
    private static readonly _COL_UNIT_TARGET_CODE;
    private static readonly _COL_UNIT_FACTOR_B;
    private static readonly _COL_UNIT_FACTOR_C;
    private static readonly _COL_UNIT_ABBREVIATION;
    /** The map for preferred transformation between CRSs */
    private static _PREFERRED_TRANSFORMATIONS;
    /** Define the list of all units */
    private static _UNIT_LIST;
    /** Define the map of CRS instances that have been read */
    private static _CRS_MAP;
    /**
     * No instances.
     */
    private constructor();
    /**
     * Get the UTM CRS code at a certain location.
     * @param lon the WGS84 (CRS 4326) longitude (degrees).
     * @param lat the WGS84 (CRS 4326) latitude (degrees).
     * @return the CRS code.
     */
    static getUTMCRSCodeAt(lon: float64, lat: float64): int32;
    /**
     * Get a preferred transformation (to WGS84).
     * @param crs the crs.
     * @return the preferred transformation (can be null).
     */
    static getPreferredTransformation(crs: string): Operation;
    /**
     * Set a preferred transformation (to WGS84).
     * @param crs the crs.
     * @param transformation the preferred transformation (can be null).
     */
    static setPreferredTransformation(crs: string, transformation: Operation): void;
    /**
     * Open a table.
     * @param tableName the name of the table.
     * @return the table.
     */
    private static openTable;
    /**
     * Read all units.
     * @return all units.
     */
    private static readAllUnits;
    /**
     * List all units.
     * @return all units.
     */
    static listUnits(): AList<Unit>;
    /**
     * Find a unit.
     * @param unitCode the identification code of the unit.
     * @return a unit (null if not found).
     */
    static findUnit(unitCode: int32): Unit;
    /**
     * Get a unit.
     * @param unitCode the identification code of the unit.
     * @return a unit (not null).
     */
    static getUnit(unitCode: int32): Unit;
    /**
     * Find a unit by name.
     * @param unitName the name (or abbreviation or code) of the unit.
     * @return a unit (null if not found).
     */
    static findUnitName(unitName: string): Unit;
    /**
     * Get a CRS.
     * @param crsCode the identification code of the CRS.
     * @return the CRS (null if not found).
     */
    static getCRS(crsCode: int32): CRS;
    /**
     * Get a CRS.
     * @param crsCode the identification code of the CRS.
     * @return the CRS (null if not found).
     */
    static getCRS2(crsCode: string): CRS;
    /**
     * Set a CRS.
     * @param crsCode the identification code of the CRS.
     * @param the CRS.
     */
    static setCRS(crsCode: int32, crs: CRS): void;
}
export {};
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