001: //$HeadURL: https://svn.wald.intevation.org/svn/deegree/base/trunk/src/org/deegree/io/rtree/HyperPoint.java $
002: //
003: //RTree implementation.
004: //Copyright (C) 2002-2004 Wolfgang Baer - WBaer@gmx.de
005: //
006: //This library is free software; you can redistribute it and/or
007: //modify it under the terms of the GNU Lesser General Public
008: //License as published by the Free Software Foundation; either
009: //version 2.1 of the License, or (at your option) any later version.
010: //
011: //This library is distributed in the hope that it will be useful,
012: //but WITHOUT ANY WARRANTY; without even the implied warranty of
013: //MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
014: //Lesser General Public License for more details.
015: //
016: //You should have received a copy of the GNU Lesser General Public
017: //License along with this library; if not, write to the Free Software
018: //Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
019:
020: package org.deegree.io.rtree;
021:
022: import java.io.Serializable;
023:
024: /**
025: * <p>
026: * Point in multidimensional space.
027: * Based on double coordinates.
028: * </p>
029: * @author Wolfgang Baer - WBaer@gmx.de
030: */
031: public class HyperPoint implements Serializable {
032:
033: private double[] coords;
034:
035: /**
036: * Constructor.<br>
037: * Length of given array sets the dimension.
038: * @param coords - array with double values of the coordinates.
039: */
040: public HyperPoint(double[] coords) {
041: //this.coords = coords;
042: this .coords = new double[] { coords[0], coords[1] };
043: }
044:
045: /**
046: * Creates a null HyperPoint with coordinates Double.NaN.
047: * Mostly used internal.
048: * @param dimension - int for dimension of point
049: * @return HyperPoint
050: */
051: protected static HyperPoint getNullHyperPoint(int dimension) {
052: double[] point = new double[dimension];
053: for (int i = 0; i < dimension; i++)
054: point[i] = Double.NaN;
055: return new HyperPoint(point);
056: }
057:
058: /**
059: * Returns the coordinates as double array.
060: * @return double[]
061: *
062: */
063: public double[] getCoords() {
064: return coords;
065: }
066:
067: /**
068: * Returns the coordinate for given index.
069: * @param index - int
070: * @return double - coordinate
071: */
072: public double getCoord(int index) {
073: return coords[index];
074: }
075:
076: /**
077: * Returns the dimension of the HyperPoint.
078: * @return int
079: */
080: public int getDimension() {
081: return coords.length;
082: }
083:
084: /**
085: * Builds a String representation of the HyperPoint.
086: * @return String
087: */
088: public String toString() {
089: String ret = "";
090:
091: for (int i = 0; i < coords.length; i++) {
092: ret += (coords[i] + ", ");
093: }
094:
095: return ret;
096: }
097:
098: /**
099: * Implements equals
100: * @see java.lang.Object#equals(java.lang.Object)
101: */
102: public boolean equals(Object obj) {
103: HyperPoint point = (HyperPoint) obj;
104: for (int i = 0; i < coords.length; i++) {
105: if (this .coords[i] != point.coords[i])
106: return false;
107: }
108: return true;
109: }
110:
111: /**
112: * Implements clone.
113: * @see java.lang.Object#clone()
114: */
115: protected Object clone() {
116: double[] point = new double[coords.length];
117:
118: for (int i = 0; i < coords.length; i++)
119: point[i] = coords[i];
120:
121: return new HyperPoint(point);
122: }
123: }
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