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The development community in building GIS solutions is sustaining an enormous level of effort. The GeoAPI project aims to reduce duplication and increase interoperability by providing neutral, interface-only APIs derived from OGC/ISO Standards.

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/*
 *    GeoAPI - Java interfaces for OGC/ISO standards
 *    http://www.geoapi.org
 *
 *    Copyright (C) 2004-2011 Open Geospatial Consortium, Inc.
 *    All Rights Reserved. http://www.opengeospatial.org/ogc/legal
 *
 *    Permission to use, copy, and modify this software and its documentation, with
 *    or without modification, for any purpose and without fee or royalty is hereby
 *    granted, provided that you include the following on ALL copies of the software
 *    and documentation or portions thereof, including modifications, that you make:
 *
 *    1. The full text of this NOTICE in a location viewable to users of the
 *       redistributed or derivative work.
 *    2. Notice of any changes or modifications to the OGC files, including the
 *       date changes were made.
 *
 *    THIS SOFTWARE AND DOCUMENTATION IS PROVIDED "AS IS," AND COPYRIGHT HOLDERS MAKE
 *    NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
 *    TO, WARRANTIES OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE OR THAT
 *    THE USE OF THE SOFTWARE OR DOCUMENTATION WILL NOT INFRINGE ANY THIRD PARTY
 *    PATENTS, COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS.
 *
 *    COPYRIGHT HOLDERS WILL NOT BE LIABLE FOR ANY DIRECT, INDIRECT, SPECIAL OR
 *    CONSEQUENTIAL DAMAGES ARISING OUT OF ANY USE OF THE SOFTWARE OR DOCUMENTATION.
 *
 *    The name and trademarks of copyright holders may NOT be used in advertising or
 *    publicity pertaining to the software without specific, written prior permission.
 *    Title to copyright in this software and any associated documentation will at all
 *    times remain with copyright holders.
 */
package org.opengis.referencing.operation;

import org.opengis.referencing.crs.CoordinateReferenceSystem;
import org.opengis.annotation.UML;
import static org.opengis.annotation.Obligation.*;
import static org.opengis.annotation.Specification.*;


/**
 * An operation on coordinates that does not include any change of Datum. The best-known
 * example of a coordinate conversion is a map projection. The parameters describing
 * coordinate conversions are defined rather than empirically derived.
 * 

* Note that some conversions have no parameters. * * @author Martin Desruisseaux (IRD) * @version 3.0 * @since 1.0 * * @see Transformation */ @UML(identifier="CC_Conversion", specification=ISO_19111) public interface Conversion extends SingleOperation { /** * Returns the source CRS. Conversions may have a source CRS that * is not specified here, but through * {@link org.opengis.referencing.crs.GeneralDerivedCRS#getBaseCRS()} instead. * * @return The source CRS, or {@code null} if not available. */ @UML(identifier="sourceCRS", obligation=OPTIONAL, specification=ISO_19111) CoordinateReferenceSystem getSourceCRS(); /** * Returns the target CRS. {@linkplain Conversion Conversions} may have a target CRS * that is not specified here, but through * {@link org.opengis.referencing.crs.GeneralDerivedCRS} instead. * * @return The target CRS, or {@code null} if not available. */ @UML(identifier="targetCRS", obligation=OPTIONAL, specification=ISO_19111) CoordinateReferenceSystem getTargetCRS(); /** * This attribute is declared in {@link CoordinateOperation} but is not used in a conversion. * * @return Always {@code null}. */ @UML(identifier="operationVersion", obligation=FORBIDDEN, specification=ISO_19111) String getOperationVersion(); }





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