001 //$HeadURL: https://svn.wald.intevation.org/svn/deegree/base/branches/2.3_testing/src/org/deegree/model/spatialschema/Envelope.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.model.spatialschema;
038
039 import org.deegree.model.crs.CoordinateSystem;
040
041 /**
042 * a boundingbox as child of a Polygon isn't part of the iso19107 spec but it simplifies the geometry handling
043 *
044 *
045 * @version $Revision: 18195 $
046 * @author <a href="mailto:poth@lat-lon.de">Andreas Poth</a>
047 * @author last edited by: $Author: mschneider $
048 *
049 * @version 1.0. $Revision: 18195 $, $Date: 2009-06-18 17:55:39 +0200 (Do, 18. Jun 2009) $
050 *
051 * @since 2.0
052 */
053 public interface Envelope {
054
055 /**
056 * returns the spatial reference system of a geometry
057 *
058 * @return the spatial reference system of a geometry
059 */
060 CoordinateSystem getCoordinateSystem();
061
062 /**
063 * returns the width of bounding box
064 *
065 * @return the width of bounding box
066 */
067 double getWidth();
068
069 /**
070 * returns the height of bounding box
071 *
072 * @return the height of bounding box
073 */
074 double getHeight();
075
076 /**
077 * returns the minimum coordinates of bounding box
078 *
079 * @return the minimum coordinates of bounding box
080 */
081 Position getMin();
082
083 /**
084 * returns the maximum coordinates of bounding box
085 *
086 * @return the maximum coordinates of bounding box
087 */
088 Position getMax();
089
090 /**
091 * returns true if the bounding box contains the submitted position
092 *
093 * @param position
094 * the position to find
095 * @return true if the bounding box contains the submitted position
096 */
097 boolean contains( Position position );
098
099 /**
100 * returns true if this envelope intersects the submitted envelope
101 *
102 * @param bb
103 * another Envelope
104 * @return true if this envelope intersects the submitted envelope
105 */
106 boolean intersects( Envelope bb );
107
108 /**
109 * returns true if all positions of the submitted bounding box are within this bounding box
110 *
111 * @param bb
112 * another boundingbox
113 * @return true if all positions of the submitted bounding box are within this bounding box
114 */
115 boolean contains( Envelope bb );
116
117 /**
118 * returns a new Envelope object representing the intersection of this Envelope with the specified Envelope.
119 *
120 * @param bb
121 * another boundingbox
122 * @return a new Envelope object representing the intersection of this Envelope with the specified Envelope.
123 */
124 Envelope createIntersection( Envelope bb );
125
126 /**
127 * merges two Envelops and returns the minimum envelope containing both.
128 *
129 * @param envelope
130 * another envelope to merge with this one
131 *
132 * @return the minimum envelope containing both.
133 * @throws GeometryException
134 * if the coordinatesystems are not equal
135 */
136 Envelope merge( Envelope envelope )
137 throws GeometryException;
138
139 /**
140 * creates a new envelope
141 *
142 * @param b
143 * an extra bound around the Envelope
144 * @return a new Envelope
145 */
146 Envelope getBuffer( double b );
147
148 /**
149 * ensures that the passed Envepole is contained within this.Envelope
150 *
151 * @param other
152 * to expand this Envelope.
153 */
154 void expandToContain( Envelope other );
155
156 /**
157 * translate a envelope in the direction defined by the two passed values and retiurns the resulting envelope
158 *
159 * @param x
160 * coordinate
161 * @param y
162 * coordinate
163 * @return the resulting translated Envelope
164 */
165 Envelope translate( double x, double y );
166
167 /**
168 * returns the centroid of an Envelope
169 *
170 * @return centroid of an Envelope
171 */
172 Point getCentroid();
173
174 }