001 //$HeadURL: https://svn.wald.intevation.org/svn/deegree/base/branches/2.3_testing/src/org/deegree/ogcwebservices/wpvs/j3d/BackgroundFactory.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.Color;
040 import java.awt.Dimension;
041 import java.awt.Graphics;
042 import java.awt.image.BufferedImage;
043 import java.io.IOException;
044 import java.net.URL;
045
046 import javax.imageio.ImageIO;
047 import javax.media.j3d.Background;
048 import javax.media.j3d.BoundingSphere;
049 import javax.media.j3d.ImageComponent2D;
050 import javax.vecmath.Color3f;
051 import javax.vecmath.Point3d;
052
053 import com.sun.j3d.utils.image.TextureLoader;
054
055 /**
056 * Factory for creating different types of Java3D objects to be used as background objects.
057 *
058 * @author <a href="mailto:taddei@lat-lon.de">Ugo Taddei</a>
059 * @author last edited by: $Author: mschneider $
060 *
061 * @version 2.0, $Revision: 18195 $, $Date: 2009-06-18 17:55:39 +0200 (Do, 18. Jun 2009) $
062 *
063 * @since 2.0
064 */
065 public class BackgroundFactory {
066
067 private BackgroundFactory() {
068 // nothing to do
069 }
070
071 /**
072 * Creates Java 3D <code>background</code> object, drawn at infinity. This method is used
073 * for "box" views and/or when the users wants a fixed background image. Not the in the latter
074 * case for optimal results, the image should be of same dimensions as the <code>GetView</code>
075 * image
076 * @param vp the ViewPoint defining the observer's position
077 * @param color the background color (seen when image is null or doesn't cover the whole view)
078 * @param imgURL a URL pointing to an image
079 * @param reqImgDimension
080 * @return A Java3D Background Node
081 * @throws IOException
082 */
083 public static Background createSimpleBackgroundGroup( ViewPoint vp, Color color, URL imgURL, Dimension reqImgDimension ) throws IOException{
084
085 Point3d ftPrint = vp.getFootprint()[0];
086
087 Background bg = new Background( new Color3f( color ) );
088 Point3d origin = new Point3d( ftPrint.x, ftPrint.y, ftPrint.z );
089 BoundingSphere bounds = new BoundingSphere(origin, ftPrint.x );
090
091 bg.setApplicationBounds( bounds );
092
093 if( imgURL != null ) {
094 BufferedImage buffImg = ImageIO.read( imgURL );
095
096 // scale image to fill the whole bakground
097 BufferedImage tmpImg = new BufferedImage( reqImgDimension.width, reqImgDimension.height, buffImg.getType() );
098 Graphics g = tmpImg.getGraphics();
099 g.drawImage( buffImg, 0, 0, tmpImg.getWidth() - 1 ,tmpImg.getHeight() - 1, null );
100 g.dispose();
101
102 ImageComponent2D img = new TextureLoader( tmpImg ).getImage();
103 bg.setImage( img );
104 }
105
106 return bg;
107 }
108
109
110
111 }
112