001    //$HeadURL: svn+ssh://jwilden@svn.wald.intevation.org/deegree/base/branches/2.5_testing/src/org/deegree/ogcwebservices/wpvs/j3d/TexturedSurface.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.ogcwebservices.wpvs.j3d;
037    
038    import java.awt.image.BufferedImage;
039    import java.util.ArrayList;
040    import java.util.List;
041    
042    import javax.media.j3d.Appearance;
043    import javax.media.j3d.Material;
044    import javax.media.j3d.Texture;
045    import javax.vecmath.Point3d;
046    import javax.vecmath.TexCoord2f;
047    
048    import org.deegree.framework.log.ILogger;
049    import org.deegree.framework.log.LoggerFactory;
050    import org.deegree.model.spatialschema.Geometry;
051    import org.deegree.model.spatialschema.MultiSurface;
052    import org.deegree.model.spatialschema.Surface;
053    import org.deegree.ogcwebservices.wpvs.configuration.RenderingConfiguration;
054    
055    import com.sun.j3d.utils.geometry.GeometryInfo;
056    import com.sun.j3d.utils.geometry.NormalGenerator;
057    import com.sun.j3d.utils.image.TextureLoader;
058    
059    /**
060     *
061     *
062     *
063     * @version $Revision: 18195 $
064     * @author <a href="mailto:poth@lat-lon.de">Andreas Poth</a>
065     * @author last edited by: $Author: mschneider $
066     *
067     * @version $Revision: 18195 $, $Date: 2009-06-18 17:55:39 +0200 (Do, 18 Jun 2009) $
068     *
069     */
070    public class TexturedSurface extends ColoredSurface {
071        private static ILogger LOG = LoggerFactory.getLogger( TexturedSurface.class );
072    
073        private Texture texture = null;
074    
075        private BufferedImage textureImg = null;
076    
077        /**
078         * creates a TexturedSurface from a geometry, Material and a texture image. Since a texture image be somehow
079         * transparent it is useful to be able to define a surfaces color.
080         *
081         * @param objectID
082         *            an Id for this Surface, for example a db primary key
083         * @param parentID
084         *            an Id for the parent of this Surface, for example if this is a wall the parent is the building.
085         * @param geometry
086         *            the ogc:geometry surface which holds the point references of a polygon, not to be confused with a j3d
087         *            Object which this class represents.
088         * @param material
089         * @param transparency
090         * @param textureImg
091         * @param textureCoords
092         */
093        public TexturedSurface( String objectID, String parentID, Geometry geometry, Material material, float transparency,
094                                BufferedImage textureImg, List<TexCoord2f> textureCoords ) {
095            super( objectID, parentID, geometry, material, transparency );
096    
097            this.textureImg = textureImg;
098            createTexture( textureImg );
099            setAppearance( createAppearance() );
100            addGeometry( geometry, textureCoords );
101        }
102    
103        private void createTexture( BufferedImage textureImg ) {
104            try {
105                texture = new TextureLoader( textureImg, TextureLoader.GENERATE_MIPMAP ).getTexture();
106                texture.setEnable( true );
107                texture.setMipMapMode( Texture.MULTI_LEVEL_MIPMAP );
108                texture.setCapability( Texture.ALLOW_ENABLE_WRITE );
109            } catch ( Exception e ) {
110                e.printStackTrace();
111            }
112        }
113    
114        /**
115         * @return the texture of this surface.
116         */
117        public BufferedImage getTexture() {
118            return textureImg;
119        }
120    
121        /**
122         * this method must be called before adding the surface to a Group
123         */
124        @Override
125        public void compile() {
126            //GeometryInfo geomInfo = getGeometryInfo( surface );
127            setAppearanceOverrideEnable( true );
128        }
129    
130        /**
131         * Adds the given surface and texcoords to this shape.
132         *
133         * @param surface
134         *            to be added
135         * @param texCoords
136         *            to be added.
137         */
138        public void addGeometry( Geometry surface, List<TexCoord2f> texCoords ) {
139            List<Point3d> coordinates = new ArrayList<Point3d>();
140            List<Integer> contourCount = new ArrayList<Integer>( 200 );
141            if ( surface != null ) {
142                if ( surface instanceof MultiSurface ) {
143                    for ( Surface multiSurface : ( (MultiSurface) surface ).getAllSurfaces() ) {
144                        extractSurface( multiSurface, coordinates, contourCount );
145                    }
146                } else if ( surface instanceof Surface ) {
147                    extractSurface( (Surface) surface, coordinates, contourCount );
148                } else {
149                    throw new UnsupportedOperationException( "Don't know how to create a textured surface from given geometry" );
150                }
151            }
152            GeometryInfo geometryInfo = new GeometryInfo( GeometryInfo.POLYGON_ARRAY );
153    
154            geometryInfo.setCoordinates( coordinates.toArray( new Point3d[0] ) );
155            int[] sc = new int[contourCount.size()];
156            int stripCountNumber = 0;
157            for ( int i = 0; i < contourCount.size(); ++i ) {
158                sc[i] = contourCount.get( i ).intValue();
159                stripCountNumber += sc[i];
160            }
161            LOG.logDebug( "Geometry has number of vertices: " + coordinates.size()
162                          + " the number of Strip counts adds up to: " + stripCountNumber );
163            geometryInfo.setStripCounts( sc );
164            // we don't actually need the contours, just an array which has the right length.
165            geometryInfo.setContourCounts( new int[] { sc.length } );
166    
167            if ( texCoords != null ) {
168                geometryInfo.setTextureCoordinateParams( 1, 2 );
169                geometryInfo.setTextureCoordinates( 0, texCoords.toArray( new TexCoord2f[0] ) );
170            }
171            NormalGenerator ng = new NormalGenerator();
172            ng.generateNormals( geometryInfo );
173    
174            geometryInfo.convertToIndexedTriangles();
175            addGeometry( geometryInfo.getIndexedGeometryArray( true ) );
176        }
177    
178    //    /**
179    //     * Adds the given surface and texcoords to this shape.
180    //     *
181    //     * @param surface
182    //     *            to be added
183    //     * @param texCoords
184    //     *            to be added.
185    //     */
186    //    public void addGeometry( Surface surface, List<TexCoord2f> texCoords ) {
187    //        LOG.logDebug( "Adding geometry to textured surface: " + surface + "with texCoords: " + texCoords );
188    //        List<Point3d> coordinates = new ArrayList<Point3d>();
189    //        List<Integer> contourCount = new ArrayList<Integer>( 200 );
190    //        if ( surface != null ) {
191    //            // SurfaceBoundary sb = surface.getSurfaceBoundary();
192    //            // if ( sb != null ) {
193    //            // Ring outerRing = sb.getExteriorRing();
194    //            // if ( outerRing != null ) {
195    //            // Position[] pos = outerRing.getPositions();
196    //            // if ( pos != null ) {
197    //            // // the surface start and end point are the same, ignoring the last node.
198    //            // for ( int i = 0; i < pos.length - 1; ++i ) {
199    //            // coordinates.add( pos[i].getAsPoint3d() );
200    //            // }
201    //            // contourCount.add( new Integer( pos.length - 1 ) );
202    //            // }
203    //            //
204    //            // Ring[] innerRings = sb.getInteriorRings();
205    //            // if ( innerRings != null ) {
206    //            // for ( Ring innerRing : innerRings ) {
207    //            // pos = innerRing.getPositions();
208    //            // if ( pos != null ) {
209    //            // // the surface start and end point are the same, ignoring the last node.
210    //            // for ( int i = 0; i < pos.length - 1; ++i ) {
211    //            // coordinates.add( pos[i].getAsPoint3d() );
212    //            // }
213    //            // contourCount.add( new Integer( pos.length - 1 ) );
214    //            // }
215    //            // }
216    //            // }
217    //            // }
218    //            //
219    //            // }
220    //            extractSurface( surface, coordinates, contourCount );
221    //        }
222    //        GeometryInfo geometryInfo = new GeometryInfo( GeometryInfo.POLYGON_ARRAY );
223    //
224    //        geometryInfo.setCoordinates( coordinates.toArray( new Point3d[0] ) );
225    //        int[] sc = new int[contourCount.size()];
226    //        int stripCountNumber = 0;
227    //        for ( int i = 0; i < contourCount.size(); ++i ) {
228    //            sc[i] = contourCount.get( i ).intValue();
229    //            stripCountNumber += sc[i];
230    //        }
231    //        LOG.logDebug( "Geometry has number of vertices: " + coordinates.size()
232    //                      + " the number of Strip counts adds up to: " + stripCountNumber );
233    //        geometryInfo.setStripCounts( sc );
234    //        // we don't actually need the contours, just an array which has the right length.
235    //        geometryInfo.setContourCounts( new int[] { sc.length } );
236    //
237    //        if ( texCoords != null ) {
238    //            geometryInfo.setTextureCoordinateParams( 1, 2 );
239    //            geometryInfo.setTextureCoordinates( 0, texCoords.toArray( new TexCoord2f[0] ) );
240    //        }
241    //        NormalGenerator ng = new NormalGenerator();
242    //        ng.generateNormals( geometryInfo );
243    //
244    //        geometryInfo.convertToIndexedTriangles();
245    //        addGeometry( geometryInfo.getGeometryArray() );
246    //    }
247    
248        /**
249         * Creates an appearance by setting the texture and default texture coordinates if none were given.
250         *
251         * @return the altered appearance
252         */
253        public Appearance createAppearance() {
254            Appearance ap = getAppearance();
255            if ( texture != null ) {
256                ap.setTexture( texture );
257                ap.setTextureAttributes( RenderingConfiguration.getInstance().getTextureAttributes() );
258            }
259            return ap;
260        }
261    }