/*$************************************************************************************************ ** ** $Id: Transformation.java,v 1.1 2004/05/06 15:51:51 desruisseaux Exp $ ** ** $Source: /cvsroot/geoapi/src/org/opengis/referencing/operation/Transformation.java,v $ ** ** Copyright (C) 2003 Open GIS Consortium, Inc. All Rights Reserved. http://www.opengis.org/Legal/ ** *************************************************************************************************/package org.opengis.referencing.operation;/** * An operation on coordinates that usually includes a change of Datum. The parameters * of a coordinate transformation are empirically derived from data containing the coordinates * of a series of points in both coordinate reference systems. This computational process * is usually "over-determined", allowing derivation of error (or accuracy) estimates * for the transformation. Also, the stochastic nature of the parameters may result * in multiple (different) versions of the same coordinate transformation.  *   * @UML abstract CC_Transformation * @author ISO 19111 * @author <A HREF="http://www.opengis.org">OpenGIS&reg; consortium</A> * @version <A HREF="http://www.opengis.org/docs/03-073r1.zip">Abstract specification 2.0</A> * * @see Conversion */public interface Transformation extends Operation {    /**     * Version of the coordinate transformation (i.e., instantiation due to the stochastic     * nature of the parameters). This attribute is mandatory in a Transformation.     *     * @return The coordinate operation version.     * @UML mandatory operationVersion     */    String getOperationVersion();}