001 //$HeadURL: https://svn.wald.intevation.org/svn/deegree/base/branches/2.3_testing/src/org/deegree/graphics/sld/LineSymbolizer.java $
002 /*----------------------------------------------------------------------------
003 This file is part of deegree, http://deegree.org/
004 Copyright (C) 2001-2009 by:
005 Department of Geography, University of Bonn
006 and
007 lat/lon GmbH
008
009 This library is free software; you can redistribute it and/or modify it under
010 the terms of the GNU Lesser General Public License as published by the Free
011 Software Foundation; either version 2.1 of the License, or (at your option)
012 any later version.
013 This library is distributed in the hope that it will be useful, but WITHOUT
014 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
015 FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
016 details.
017 You should have received a copy of the GNU Lesser General Public License
018 along with this library; if not, write to the Free Software Foundation, Inc.,
019 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
020
021 Contact information:
022
023 lat/lon GmbH
024 Aennchenstr. 19, 53177 Bonn
025 Germany
026 http://lat-lon.de/
027
028 Department of Geography, University of Bonn
029 Prof. Dr. Klaus Greve
030 Postfach 1147, 53001 Bonn
031 Germany
032 http://www.geographie.uni-bonn.de/deegree/
033
034 e-mail: info@deegree.org
035 ----------------------------------------------------------------------------*/
036 package org.deegree.graphics.sld;
037
038 import org.deegree.framework.xml.Marshallable;
039
040 /**
041 * Used to render a "stroke" along a linear geometry. If a point geometry is used, it should be
042 * interpreted as a line of zero length and two end caps. If a polygon is used, then its closed
043 * outline is used as the line string (with no end caps). A missing Geometry element selects the
044 * default geometry. A missing Stroke element means that nothing will be plotted.
045 * <p>
046 * ----------------------------------------------------------------------
047 * </p>
048 *
049 * @author <a href="mailto:k.lupp@web.de">Katharina Lupp</a>
050 * @version $Revision: 18195 $ $Date: 2009-06-18 17:55:39 +0200 (Do, 18. Jun 2009) $
051 */
052
053 public class LineSymbolizer extends AbstractSymbolizer implements Marshallable {
054
055 private Stroke stroke = null;
056
057 /**
058 * Creates a new LineSymbolizer object.
059 */
060 public LineSymbolizer() {
061 super( null, "org.deegree.graphics.displayelements.LineStringDisplayElement" );
062
063 Stroke stroke = new Stroke();
064 setStroke( stroke );
065 }
066
067 /**
068 * constructor initializing the class with the LineSymbolizer
069 * @param stroke
070 * @param geometry
071 * @param min
072 * @param max
073 */
074 LineSymbolizer( Stroke stroke, Geometry geometry, double min, double max ) {
075 super( geometry, "org.deegree.graphics.displayelements.LineStringDisplayElement" );
076 setStroke( stroke );
077 setMinScaleDenominator( min );
078 setMaxScaleDenominator( max );
079 }
080
081 /**
082 * constructor initializing the class with the LineSymbolizer
083 * @param stroke
084 * @param geometry
085 * @param responsibleClass
086 * @param min
087 * @param max
088 */
089 LineSymbolizer( Stroke stroke, Geometry geometry, String responsibleClass, double min, double max ) {
090 super( geometry, responsibleClass );
091 // super( geometry, "org.deegree.graphics.displayelements.LineStringDisplayElement" );
092 setStroke( stroke );
093 setMinScaleDenominator( min );
094 setMaxScaleDenominator( max );
095 }
096
097 /**
098 * A Stroke allows a string of line segments (or any linear geometry) to be rendered. There are
099 * three basic types of strokes: solid Color, GraphicFill (stipple), and repeated GraphicStroke.
100 * A repeated graphic is plotted linearly and has its graphic symbol bended around the curves of
101 * the line string. The default is a solid black line (Color "#000000").
102 *
103 * @return the Stroke
104 */
105 public Stroke getStroke() {
106 return stroke;
107 }
108
109 /**
110 * sets the <Stroke>
111 *
112 * @param stroke
113 * the Stroke
114 *
115 */
116 public void setStroke( Stroke stroke ) {
117 this.stroke = stroke;
118 }
119
120 /**
121 * exports the content of the LineSymbolizer as XML formated String
122 *
123 * @return xml representation of the LineSymbolizer
124 */
125 public String exportAsXML() {
126
127 StringBuffer sb = new StringBuffer( 1000 );
128 sb.append( "<LineSymbolizer>" );
129 if ( geometry != null ) {
130 sb.append( ( (Marshallable) geometry ).exportAsXML() );
131 }
132 if ( stroke != null ) {
133 sb.append( ( (Marshallable) stroke ).exportAsXML() );
134 }
135 sb.append( "</LineSymbolizer>" );
136
137 return sb.toString();
138 }
139 }