001 //$HeadURL: svn+ssh://jwilden@svn.wald.intevation.org/deegree/base/branches/2.5_testing/src/org/deegree/ogcwebservices/wpvs/j3d/TerrainModel.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
037 package org.deegree.ogcwebservices.wpvs.j3d;
038
039 import java.awt.image.BufferedImage;
040
041 import javax.media.j3d.Appearance;
042 import javax.media.j3d.Material;
043 import javax.media.j3d.RenderingAttributes;
044 import javax.media.j3d.Shape3D;
045 import javax.vecmath.Color3f;
046
047 import org.deegree.ogcwebservices.wpvs.configuration.RenderingConfiguration;
048
049 /**
050 * The <code>TerrainModel</code> class is a base class for all dgm's (terrains). It is capable of loading a texture onto
051 * the geometry of it's subclasses.
052 *
053 * @author <a href="mailto:bezema@lat-lon.de">Rutger Bezema</a>
054 *
055 * @author last edited by: $Author: rbezema $
056 *
057 * @version $Revision: 20601 $, $Date: 2009-11-05 16:25:55 +0100 (Do, 05 Nov 2009) $
058 *
059 */
060
061 public abstract class TerrainModel extends Shape3D {
062
063 private BufferedImage textureImage = null;
064
065 /**
066 * Creates a TerrainModel with a default Appearance set.
067 * <p>
068 * The default apearance of this terrain is defined as:
069 * <ul>
070 * <li>specularColor = new Color3f( 0.7f, 0.7f, 0.7f )</li>
071 * <li>ambientColor = white</li>
072 * <li>diffuseColor = white</li>
073 * <li>shininess = 75f</li>
074 * <li>lighting is enabled</li>
075 * <li>matieral is writable (Material.ALLOW_COMPONENT_WRITE)</li>
076 * </ul>
077 * </p>
078 */
079 protected TerrainModel() {
080 setCapability( Shape3D.ALLOW_GEOMETRY_WRITE );
081 setAppearance( createDefaultApperance() );
082 }
083
084 /**
085 * Create a terrain from the given buffered image
086 *
087 * @param textureImage
088 */
089 protected TerrainModel( BufferedImage textureImage ) {
090 this();
091 this.textureImage = textureImage;
092 }
093
094 /**
095 * This method implements all the necessary steps to generate a Shape3D Terrain (Elevation model). Before rendering
096 * this Class this method should therefor be called prior.
097 */
098 public abstract void createTerrain();
099
100 /**
101 * Creates a J3D Appearance for the surface
102 *
103 * @return a new Appearance object
104 */
105 private Appearance createDefaultApperance() {
106 Appearance appearance = new Appearance();
107
108 // create a material
109 Color3f specular = new Color3f( 0.2f, 0.2f, 0.2f );
110 Color3f white = new Color3f( 1, 1, 1 );
111 Material targetMaterial = new Material();
112 targetMaterial.setAmbientColor( white );
113 targetMaterial.setDiffuseColor( white );
114
115 targetMaterial.setSpecularColor( specular );
116 targetMaterial.setShininess( 65f );
117 targetMaterial.setCapability( Material.ALLOW_COMPONENT_WRITE );
118 targetMaterial.setCapability( Material.ALLOW_COMPONENT_READ );
119 RenderingConfiguration rc = RenderingConfiguration.getInstance();
120 targetMaterial.setLightingEnable( rc.isTerrainShadingEnabled() );
121
122 // targetMaterial.setColorTarget( Material.AMBIENT_AND_DIFFUSE );
123 appearance.setMaterial( targetMaterial );
124
125 appearance.setColoringAttributes( rc.getColoringAttributes() );
126
127 appearance.setPolygonAttributes( rc.getTerrainPolygonAttributes() );
128
129 RenderingAttributes ra = new RenderingAttributes();
130 ra.setDepthBufferEnable( true );
131 appearance.setRenderingAttributes( ra );
132
133 return appearance;
134 }
135
136 /**
137 * @param textureImage
138 * An other texture value.
139 */
140 public void setTexture( BufferedImage textureImage ) {
141 if ( textureImage != null ) {
142 this.textureImage = textureImage;
143 Appearance appearance = getAppearance();
144 RenderingConfiguration rc = RenderingConfiguration.getInstance();
145
146 appearance.setTextureAttributes( rc.getTextureAttributes() );
147 appearance.setTexture( rc.getTexture( textureImage ) );
148
149 setAppearance( appearance );
150 }
151
152 }
153
154 /**
155 * @return the BufferedImage which can be used as a texture or <code>null</code>if no texture was defined.
156 */
157 public BufferedImage getTexture() {
158 return this.textureImage;
159 }
160
161 @Override
162 public String toString() {
163 StringBuilder sb = new StringBuilder( 512 );
164 sb.append( "Elevationmodel as a J3D terrainModel: " );
165 if ( textureImage != null ) {
166 sb.append( " with textureImage and " );
167 }
168 sb.append( "Appearance: " ).append( getAppearance() ).append( "\n" );
169 return sb.toString();
170 }
171
172 }