001 /*
002 * GeoAPI - Java interfaces for OGC/ISO standards
003 * http://www.geoapi.org
004 *
005 * Copyright (C) 2004-2012 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.Extension;
035 import org.opengis.annotation.XmlElement;
036 import org.opengis.filter.expression.Expression;
037
038
039 /**
040 * Holds the information that indicates how to draw the lines and the interior of polygons.
041 *
042 * @version <A HREF="http://www.opengeospatial.org/standards/symbol">Symbology Encoding Implementation Specification 1.1.0</A>
043 * @author Open Geospatial Consortium
044 * @author Johann Sorel (Geomatys)
045 * @author Chris Dillard (SYS Technologies)
046 * @since GeoAPI 2.2
047 */
048 @XmlElement("PolygonSymbolizer")
049 public interface PolygonSymbolizer extends Symbolizer {
050
051 /**
052 * Returns the object containing all the information necessary to draw
053 * styled lines. This is used for the edges of polygons.
054 *
055 * @return Stroke
056 */
057 @XmlElement("Stroke")
058 Stroke getStroke();
059
060 /**
061 * Returns the object that holds the information about how the interior of
062 * polygons should be filled. This may be null if the polygons are not to
063 * be filled at all.
064 *
065 * @return Fill
066 */
067 @XmlElement("Fill")
068 Fill getFill();
069
070 /**
071 * The Displacement gives the X and Y displacements from the original geometry. This
072 * element may be used to avoid over-plotting of multiple PolygonSymbolizers for one
073 * geometry or supplying "shadows" of polygon gemeotries. The displacements are in units
074 * of pixels above and to the right of the point. The default displacement is X=0, Y=0.
075 *
076 * @return Displacement
077 */
078 @XmlElement("Displacement")
079 Displacement getDisplacement();
080
081 /**
082 * PerpendicularOffset works as defined for LineSymbolizer, allowing to draw polygons
083 * smaller or larger than their actual geometry. The distance is in uoms and is positive to the
084 * outside of the polygon. Negative numbers mean drawing the polygon smaller. The default
085 * offset is 0.
086
087 * @return Expression
088 */
089 @XmlElement("PerpendicularOffset")
090 Expression getPerpendicularOffset();
091
092 /**
093 * calls the visit method of a StyleVisitor
094 *
095 * @param visitor the style visitor
096 */
097 @Extension
098 Object accept(StyleVisitor visitor, Object extraData);
099
100 }