001 /*
002 * GeoAPI - Java interfaces for OGC/ISO standards
003 * http://www.geoapi.org
004 *
005 * Copyright (C) 2004-2013 Open Geospatial Consortium, Inc.
006 * All Rights Reserved. http://www.opengeospatial.org/ogc/legal
007 *
008 * Permission to use, copy, and modify this software and its documentation, with
009 * or without modification, for any purpose and without fee or royalty is hereby
010 * granted, provided that you include the following on ALL copies of the software
011 * and documentation or portions thereof, including modifications, that you make:
012 *
013 * 1. The full text of this NOTICE in a location viewable to users of the
014 * redistributed or derivative work.
015 * 2. Notice of any changes or modifications to the OGC files, including the
016 * date changes were made.
017 *
018 * THIS SOFTWARE AND DOCUMENTATION IS PROVIDED "AS IS," AND COPYRIGHT HOLDERS MAKE
019 * NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
020 * TO, WARRANTIES OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE OR THAT
021 * THE USE OF THE SOFTWARE OR DOCUMENTATION WILL NOT INFRINGE ANY THIRD PARTY
022 * PATENTS, COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS.
023 *
024 * COPYRIGHT HOLDERS WILL NOT BE LIABLE FOR ANY DIRECT, INDIRECT, SPECIAL OR
025 * CONSEQUENTIAL DAMAGES ARISING OUT OF ANY USE OF THE SOFTWARE OR DOCUMENTATION.
026 *
027 * The name and trademarks of copyright holders may NOT be used in advertising or
028 * publicity pertaining to the software without specific, written prior permission.
029 * Title to copyright in this software and any associated documentation will at all
030 * times remain with copyright holders.
031 */
032 package org.opengis.referencing.operation;
033
034 import java.util.Map;
035 import org.opengis.parameter.ParameterValueGroup;
036 import org.opengis.referencing.crs.CoordinateReferenceSystem;
037 import org.opengis.annotation.UML;
038 import static org.opengis.annotation.Obligation.*;
039 import static org.opengis.annotation.Specification.*;
040
041
042 /**
043 * An operation on coordinates that does not include any change of Datum. The best-known
044 * example of a coordinate conversion is a map projection. The parameters describing
045 * coordinate conversions are defined rather than empirically derived.
046 *
047 * <p>Note that some conversions have no parameters.</p>
048 *
049 * @author Martin Desruisseaux (IRD)
050 * @version 3.0
051 * @since 1.0
052 *
053 * @see Transformation
054 * @see CoordinateOperationFactory#createDefiningConversion(Map, OperationMethod, ParameterValueGroup)
055 */
056 @UML(identifier="CC_Conversion", specification=ISO_19111)
057 public interface Conversion extends SingleOperation {
058 /**
059 * Returns the source CRS. Conversions may have a source CRS that
060 * is not specified here, but through
061 * {@link org.opengis.referencing.crs.GeneralDerivedCRS#getBaseCRS()} instead.
062 *
063 * @return The source CRS, or {@code null} if not available.
064 */
065 @Override
066 @UML(identifier="sourceCRS", obligation=OPTIONAL, specification=ISO_19111)
067 CoordinateReferenceSystem getSourceCRS();
068
069 /**
070 * Returns the target CRS. {@linkplain Conversion Conversions} may have a target CRS
071 * that is not specified here, but through
072 * {@link org.opengis.referencing.crs.GeneralDerivedCRS} instead.
073 *
074 * @return The target CRS, or {@code null} if not available.
075 */
076 @Override
077 @UML(identifier="targetCRS", obligation=OPTIONAL, specification=ISO_19111)
078 CoordinateReferenceSystem getTargetCRS();
079
080 /**
081 * This attribute is declared in {@link CoordinateOperation} but is not used in a conversion.
082 *
083 * @return Always {@code null}.
084 */
085 @Override
086 @UML(identifier="operationVersion", obligation=FORBIDDEN, specification=ISO_19111)
087 String getOperationVersion();
088 }