001 //$HeadURL: svn+ssh://rbezema@svn.wald.intevation.org/deegree/base/tags/2.1/src/org/deegree/graphics/sld/RasterSymbolizer.java $
002 /*---------------- FILE HEADER ------------------------------------------
003
004 This file is part of deegree.
005 Copyright (C) 2001-2006 by:
006 EXSE, Department of Geography, University of Bonn
007 http://www.giub.uni-bonn.de/deegree/
008 lat/lon GmbH
009 http://www.lat-lon.de
010
011 This library is free software; you can redistribute it and/or
012 modify it under the terms of the GNU Lesser General Public
013 License as published by the Free Software Foundation; either
014 version 2.1 of the License, or (at your option) any later version.
015
016 This library is distributed in the hope that it will be useful,
017 but WITHOUT ANY WARRANTY; without even the implied warranty of
018 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
019 Lesser General Public License for more details.
020
021 You should have received a copy of the GNU Lesser General Public
022 License along with this library; if not, write to the Free Software
023 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
024
025 Contact:
026
027 Andreas Poth
028 lat/lon GmbH
029 Aennchenstr. 19
030 53115 Bonn
031 Germany
032 E-Mail: poth@lat-lon.de
033
034 Prof. Dr. Klaus Greve
035 Department of Geography
036 University of Bonn
037 Meckenheimer Allee 166
038 53115 Bonn
039 Germany
040 E-Mail: greve@giub.uni-bonn.de
041
042
043 ---------------------------------------------------------------------------*/
044 package org.deegree.graphics.sld;
045
046 import org.deegree.framework.log.ILogger;
047 import org.deegree.framework.log.LoggerFactory;
048 import org.deegree.model.filterencoding.FilterEvaluationException;
049
050 /**
051 * <code>RasterSymbolizer</code> encapsulates the Symbology Encoding values that may have been
052 * set. Note that everything is optional, so all values may be null.
053 *
054 * @author <a href="mailto:schmitz@lat-lon.de">Andreas Schmitz</a>
055 * @author last edited by: $Author: aschmitz $
056 *
057 * @version $Revision: 7824 $, $Date: 2007-07-24 11:02:18 +0200 (Di, 24 Jul 2007) $
058 */
059 public class RasterSymbolizer extends AbstractSymbolizer {
060
061 private static final ILogger LOG = LoggerFactory.getLogger( RasterSymbolizer.class );
062
063 private double opacity;
064
065 private boolean opacitySet;
066
067 private Categorize categorize;
068
069 private Interpolate interpolate;
070
071 private double min;
072
073 private double max;
074
075 private boolean scaleSet;
076
077 /**
078 * Initializes nothing.
079 */
080 public RasterSymbolizer() {
081 // initialize nothing
082 }
083
084 /**
085 * @param min
086 * @param max
087 */
088 public RasterSymbolizer( double min, double max ) {
089 if ( min > 0 && max > 0 ) {
090 scaleSet = true;
091 this.min = min;
092 this.max = max;
093 }
094 }
095
096 /**
097 * @param opac
098 */
099 public void setOpacity( ParameterValueType opac ) {
100 try {
101 opacity = Double.parseDouble( opac.evaluate( null ) );
102 opacitySet = true;
103 } catch ( NumberFormatException e ) {
104 LOG.logError( "The opacity value of a RasterSymbolizer could not be parsed.", e );
105 } catch ( FilterEvaluationException e ) {
106 LOG.logError( "The opacity value of a RasterSymbolizer could not be parsed.", e );
107 }
108 }
109
110 /**
111 * @return the opacity or 1, if none was set
112 */
113 public double getOpacity() {
114 return opacitySet ? opacity : 1;
115 }
116
117 /**
118 * @param categorize
119 */
120 public void setCategorize( Categorize categorize ) {
121 this.categorize = categorize;
122 }
123
124 /**
125 * @param interpolate
126 */
127 public void setInterpolate( Interpolate interpolate ) {
128 this.interpolate = interpolate;
129 }
130
131 /**
132 * @return the categorize
133 */
134 public Categorize getCategorize() {
135 return categorize;
136 }
137
138 /**
139 * @return the interpolate
140 */
141 public Interpolate getInterpolate() {
142 return interpolate;
143 }
144
145 /**
146 * @return true, if none of the options has been set (scale is ignored)
147 */
148 public boolean isDefault() {
149 return ( !opacitySet ) && categorize == null && interpolate == null;
150 }
151
152 /**
153 * @param scale
154 * @return true, if no scale hints have been set or if the given scale is valid
155 */
156 public boolean scaleValid( double scale ) {
157 return ( scaleSet && min <= scale && max >= scale ) || !scaleSet;
158 }
159
160 @Override
161 public String toString() {
162 return opacity + ", " + categorize + ", " + interpolate;
163 }
164
165 /**
166 * @return the max
167 */
168 public double getMax() {
169 return max;
170 }
171
172 /**
173 * @return the min
174 */
175 public double getMin() {
176 return min;
177 }
178
179 }