001 //$HeadURL: svn+ssh://rbezema@svn.wald.intevation.org/deegree/base/tags/2.1/src/org/deegree/processing/raster/interpolation/DataTuple.java $
002 /*---------------- FILE HEADER ------------------------------------------
003
004 This file is part of deegree.
005 Copyright (C) 2001-2006 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 53177 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 package org.deegree.processing.raster.interpolation;
044
045 /**
046 *
047 *
048 *
049 * @version $Revision: 6259 $
050 * @author <a href="mailto:poth@lat-lon.de">Andreas Poth</a>
051 * @author last edited by: $Author: bezema $
052 *
053 * @version 1.0. $Revision: 6259 $, $Date: 2007-03-20 10:15:15 +0100 (Di, 20 Mär 2007) $
054 *
055 * @since 2.0
056 */
057 public class DataTuple implements Comparable<DataTuple> {
058
059 public double x = 0;
060
061 public double y = 0;
062
063 public double value = 0;
064
065 /**
066 * This may not be the best choice for epsilon.
067 */
068 // public static final double EPSILON = 0.00000000001;
069
070 /**
071 * Convenience constructor.
072 *
073 * @param x
074 * @param y
075 * @param value
076 */
077 public DataTuple( double x, double y, double value ) {
078 this.x = x;
079 this.y = y;
080 this.value = value;
081 }
082
083 /**
084 * Empty constructor. Data is pre-set to zero.
085 */
086 public DataTuple() {
087 }
088
089 /* (non-Javadoc)
090 * @see java.lang.Comparable#compareTo(T)
091 */
092 public int compareTo( DataTuple o ) {
093
094 // boolean xequal = ( ( ( x - EPSILON ) < o.x ) && ( ( x + EPSILON ) > o.x ) );
095 // boolean yequal = ( ( ( y - EPSILON ) < o.y ) && ( ( y + EPSILON ) > o.y ) );
096
097 boolean xequal = ( x == o.x );
098 boolean yequal = ( y == o.y );
099
100 if ( xequal && yequal ) {
101 return 0;
102 }
103
104 if ( x < o.x ) {
105 return -1;
106 }
107
108 if ( xequal && ( y < o.y ) ) {
109 return -1;
110 }
111
112 return 1;
113 }
114
115 }
116
117 /* ********************************************************************
118 Changes to this class. What the people have been up to:
119 $Log$
120 Revision 1.2 2006/10/20 14:57:08 schmitz
121 Added a memory point quadtree implementation.
122 Used the quadtree for interpolation.
123 Updated the text2tiff tool to use quadtree and interpolation.
124
125 Revision 1.1 2006/10/12 15:44:57 poth
126 initial checkin
127
128
129 ********************************************************************** */