/** @packageDocumentation
 * @module OrbitGT
 */
import { Bounds } from "../geom/Bounds";
import { Coordinate } from "../geom/Coordinate";
/**
 * Abstract class CRSEngine provides a model for CRS transformation engines to implement.
 */
/** @internal */
export declare class CRSEngine {
    /**
     * Create a new engine.
     */
    constructor();
    /**
     * Prepare a CRS for making transforms in a certain area.
     * @param crs the CRS to prepare.
     * @param area the area to prepare for (can be invalid to prepare only for the crs).
     */
    prepareForArea(crs: string, area: Bounds): Promise<Bounds>;
    /**
     * Transform a coordinate from one CRS to another.
     * @param point the point coordinate.
     * @param sourceCRS the source CRS.
     * @param targetCRS the target CRS.
     * @return the transformed coordinate.
     */
    transformPoint(point: Coordinate, sourceCRS: string, targetCRS: string): Coordinate;
    /**
     * Check if a CRS is geocentric.
     * @param crs the CRS to check.
     * @return true if geocentric.
     */
    isGeocentricCRS(crs: string): boolean;
    /**
     * Check if a CRS is geographic.
     * @param crs the CRS to check.
     * @return true if geocentric.
     */
    isGeographicCRS(crs: string): boolean;
    /**
     * Check if a CRS is projected.
     * @param crs the CRS to check.
     * @return true if geocentric.
     */
    isProjectedCRS(crs: string): boolean;
    /**
     * Transform spatial bounds from one CRS to another.
     * @param point the point coordinate.
     * @param sourceCRS the source CRS.
     * @param targetCRS the target CRS.
     * @return the transformed bounds.
     */
    transformBounds(bounds: Bounds, sourceCRS: string, targetCRS: string): Bounds;
}
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