001 //$HeadURL: svn+ssh://rbezema@svn.wald.intevation.org/deegree/base/branches/2.2_testing/src/org/deegree/ogcwebservices/wpvs/j3d/TerrainModel.java $
002 /*---------------- FILE HEADER ------------------------------------------
003
004 This file is part of deegree.
005 Copyright (C) 2001-2008 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
045 package org.deegree.ogcwebservices.wpvs.j3d;
046
047 import java.awt.image.BufferedImage;
048
049 import javax.media.j3d.Appearance;
050 import javax.media.j3d.Material;
051 import javax.media.j3d.RenderingAttributes;
052 import javax.media.j3d.Shape3D;
053 import javax.vecmath.Color3f;
054
055 import org.deegree.ogcwebservices.wpvs.configuration.RenderingConfiguration;
056
057 /**
058 * The <code>TerrainModel</code> class is a base class for all dgm's (terrains). It is capable of
059 * loading a texture onto the geometry of it's subclasses.
060 *
061 * @author <a href="mailto:bezema@lat-lon.de">Rutger Bezema</a>
062 *
063 * @author last edited by: $Author: apoth $
064 *
065 * @version $Revision: 9345 $, $Date: 2007-12-27 17:22:25 +0100 (Do, 27 Dez 2007) $
066 *
067 */
068
069 public abstract class TerrainModel extends Shape3D {
070
071 private BufferedImage textureImage = null;
072
073 /**
074 * Creates a TerrainModel with a default Appearance set.
075 * <p>
076 * The default apearance of this terrain is defined as:
077 * <ul>
078 * <li> specularColor = new Color3f( 0.7f, 0.7f, 0.7f )</li>
079 * <li> ambientColor = white </li>
080 * <li> diffuseColor = white </li>
081 * <li> shininess = 75f </li>
082 * <li> lighting is enabled </li>
083 * <li> matieral is writable (Material.ALLOW_COMPONENT_WRITE) </li>
084 * </ul>
085 * </p>
086 */
087 protected TerrainModel() {
088 setCapability( Shape3D.ALLOW_GEOMETRY_WRITE );
089 setAppearance( createDefaultApperance() );
090 }
091
092 protected TerrainModel( BufferedImage textureImage ) {
093 this();
094 this.textureImage = textureImage;
095 }
096
097 /**
098 * This method implements all the necessary steps to generate a Shape3D Terrain (Elevation
099 * model). Before rendering this Class this method should therefor be called prior.
100 */
101 public abstract void createTerrain();
102
103 /**
104 * Creates a J3D Appearance for the surface
105 *
106 * @return a new Appearance object
107 */
108 private Appearance createDefaultApperance() {
109 Appearance appearance = new Appearance();
110
111 // create a material
112 Color3f specular = new Color3f( 0, 0, 0 );
113 Color3f white = new Color3f( 1, 1, 1 );
114 Material targetMaterial = new Material();
115 targetMaterial.setAmbientColor( white );
116 targetMaterial.setDiffuseColor( white );
117
118 targetMaterial.setSpecularColor( specular );
119 targetMaterial.setShininess( 65f );
120 targetMaterial.setLightingEnable( true );
121 targetMaterial.setCapability( Material.ALLOW_COMPONENT_WRITE );
122 targetMaterial.setCapability( Material.ALLOW_COMPONENT_READ );
123 // targetMaterial.setColorTarget( Material.AMBIENT_AND_DIFFUSE );
124 appearance.setMaterial( targetMaterial );
125
126 RenderingConfiguration rc = RenderingConfiguration.getInstance();
127
128 appearance.setColoringAttributes( rc.getColoringAttributes() );
129
130 appearance.setPolygonAttributes( rc.getTerrainPolygonAttributes() );
131
132 RenderingAttributes ra = new RenderingAttributes();
133 ra.setDepthBufferEnable(true);
134 appearance.setRenderingAttributes( ra );
135
136 return appearance;
137 }
138
139 /**
140 * @param textureImage
141 * An other texture value.
142 */
143 public void setTexture( BufferedImage textureImage ) {
144 if ( textureImage != null ) {
145 this.textureImage = textureImage;
146 Appearance appearance = getAppearance();
147
148 RenderingConfiguration rc = RenderingConfiguration.getInstance();
149
150 appearance.setTextureAttributes( rc.getTextureAttributes() );
151 appearance.setTexture( rc.getTexture( textureImage ) );
152
153 setAppearance( appearance );
154 }
155
156 }
157
158 /**
159 * @return the BufferedImage which can be used as a texture or <code>null</code>if no texture was
160 * defined.
161 */
162 public BufferedImage getTexture() {
163 return this.textureImage;
164 }
165
166 @Override
167 public String toString( ){
168 StringBuilder sb = new StringBuilder( 512 );
169 sb.append( "Elevationmodel as a J3D terrainModel: " );
170 if( textureImage != null ){
171 sb.append( " with textureImage and ");
172 }
173 sb.append( "Appearance: " ).append( getAppearance() ).append("\n" );
174 return sb.toString();
175 }
176
177 }