001 //$HeadURL: svn+ssh://jwilden@svn.wald.intevation.org/deegree/base/branches/2.5_testing/src/org/deegree/processing/raster/BufferedImageDataMatrix.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.processing.raster;
037
038 import java.awt.image.BufferedImage;
039 import java.awt.image.DataBuffer;
040
041 /**
042 *
043 *
044 * @author <a href="mailto:poth@lat-lon.de">Andreas Poth</a>
045 * @author last edited by: $Author: mschneider $
046 *
047 * @version $Revision: 18195 $, $Date: 2009-06-18 17:55:39 +0200 (Do, 18 Jun 2009) $
048 */
049 public class BufferedImageDataMatrix implements DataMatrix {
050
051 private int width = 0;
052
053 private int height = 0;
054
055 private DataBuffer data = null;
056
057 /**
058 *
059 * @param bi
060 */
061 public BufferedImageDataMatrix( BufferedImage bi ) {
062 data = bi.getData().getDataBuffer();
063 height = bi.getHeight();
064 width = bi.getWidth();
065 }
066
067 /**
068 * @param x
069 * @param y
070 * @return the float values at x,y.
071 */
072 public double[] getCellAt( int x, int y ) {
073 int index = ( width * y ) + x;
074 double[] val = new double[data.getNumBanks()];
075 for ( int i = 0; i < val.length; i++ ) {
076 val[i] = data.getElemFloat( index, i );
077 }
078 return val;
079 }
080
081 /**
082 * returns the data matrix width (number of cells in x-direction)
083 *
084 * @return the data matrix width (number of cells in x-direction)
085 */
086 public int getHeight() {
087 return height;
088 }
089
090 /**
091 * returns the data matrix height (number of cells in y-direction)
092 *
093 * @return the data matrix height (number of cells in y-direction)
094 */
095 public int getWidth() {
096 return width;
097 }
098
099 }