001    /*
002     *    GeoAPI - Java interfaces for OGC/ISO standards
003     *    http://www.geoapi.org
004     *
005     *    Copyright (C) 2009-2012 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.metadata.spatial;
033    
034    import java.util.Collection;
035    
036    import org.opengis.annotation.UML;
037    import org.opengis.geometry.DirectPosition;
038    import org.opengis.metadata.quality.Element;
039    
040    import static org.opengis.annotation.Obligation.*;
041    import static org.opengis.annotation.Specification.*;
042    
043    
044    /**
045     * Information on ground control point.
046     *
047     * @author  Cédric Briançon (Geomatys)
048     * @version 3.0
049     * @since   2.3
050     *
051     * @navassoc 1 - - DirectPosition
052     * @navassoc - - - Element
053     */
054    @UML(identifier="MI_GCP", specification=ISO_19115_2)
055    public interface GCP {
056        /**
057         * Geographic or map position of the control point, in either two or three dimensions.
058         *
059         * @return Geographic or map position of the control point.
060         */
061        @UML(identifier="geographicCoordinates", obligation=MANDATORY, specification=ISO_19115_2)
062        DirectPosition getGeographicCoordinates();
063    
064        /**
065         * Accuracy of a ground control point.
066         *
067         * @return Accuracy of a ground control point.
068         */
069        @UML(identifier="accuracyReport", obligation=OPTIONAL, specification=ISO_19115_2)
070        Collection<? extends Element> getAccuracyReports();
071    }