001    /*
002     *    GeoAPI - Java interfaces for OGC/ISO standards
003     *    http://www.geoapi.org
004     *
005     *    Copyright (C) 2008-2012 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.style;
033    
034    import org.opengis.annotation.XmlElement;
035    
036    /**
037     * The OverlapBehavior element tells a system how to behave when multiple
038     * raster images in a layer  overlap each other, for example with
039     * satellite-image scenes. LATEST_ON_TOP and EARLIEST_ON_TOP refer to the
040     * time the scene was captured.   AVERAGE means to average multiple scenes
041     * together.   This can produce blurry results if the source images are
042     * not perfectly aligned in their geo-referencing. RANDOM means to select
043     * an image (or piece thereof) randomly and place it on top.  This can
044     * produce crisper  results than AVERAGE potentially more efficiently than
045     * LATEST_ON_TOP or EARLIEST_ON_TOP.   The default behaviour is
046     * system-dependent.
047     *
048     * @return LATEST_ON_TOP, EARLIEST_ON_TOP, AVERAGE or RANDOM
049     *
050     * @version <A HREF="http://www.opengeospatial.org/standards/symbol">Symbology Encoding Implementation Specification 1.1.0</A>
051     * @author Open Geospatial Consortium
052     * @author Johann Sorel (Geomatys)
053     * @since GeoAPI 2.2  
054     */
055    @XmlElement("OverlapBehavior")
056    public enum OverlapBehavior {
057        LATEST_ON_TOP, 
058        EARLIEST_ON_TOP, 
059        AVERAGE,
060        RANDOM
061    }