001 //$HeadURL: svn+ssh://rbezema@svn.wald.intevation.org/deegree/base/tags/2.1/src/org/deegree/model/spatialschema/SurfacePatch.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 53115 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 ---------------------------------------------------------------------------*/
044
045 package org.deegree.model.spatialschema;
046
047 import org.deegree.model.crs.CoordinateSystem;
048
049 /**
050 *
051 * Defining the iso geometry <code>SurfacePatch</code> which is used
052 * for building surfaces. A surface patch is made of one exterior ring
053 * and 0..n interior rings. By definition there can't be a surface patch
054 * with no exterior ring.
055 * A polygon is a specialized surface patch.
056 *
057 * -----------------------------------------------------
058 *
059 * @author <a href="mailto:poth@lat-lon.de">Andreas Poth</a>
060 * @version $Revision: 6259 $ $Date: 2007-03-20 10:15:15 +0100 (Di, 20 Mär 2007) $
061 */
062
063 public interface SurfacePatch extends GenericSurface {
064
065
066 /**
067 * The interpolation determines the surface interpolation mechanism
068 * used for this SurfacePatch. This mechanism uses the control
069 * points and control parameters defined in the various subclasses
070 * to determine the position of this SurfacePatch.
071 */
072 SurfaceInterpolation getInterpolation();
073
074 /**
075 * returns the exterior ring of the surface
076 */
077 Position[] getExteriorRing();
078
079 /**
080 * returns the interior rings of the surface
081 */
082 Position[][] getInteriorRings();
083
084 /**
085 * returns the coordinate system of the surface patch
086 */
087 CoordinateSystem getCoordinateSystem();
088
089 /**
090 * The Boolean valued operation "intersects" shall return TRUE if this Geometry
091 * intersects another Geometry. Within a Complex, the Primitives do not
092 * intersect one another. In general, topologically structured data uses shared
093 * geometric objects to capture intersection information.
094 */
095 boolean intersects(Geometry gmo);
096
097 /**
098 * The Boolean valued operation "contains" shall return TRUE if this Geometry
099 * contains another Geometry.
100 */
101 boolean contains(Geometry gmo);
102
103 /**
104 * The operation "centroid" shall return the mathematical centroid for this
105 * Geometry. The result is not guaranteed to be on the object.
106 */
107 public Point getCentroid();
108
109 /**
110 * The operation "area" shall return the area of this GenericSurface.
111 * The area of a 2 dimensional geometric object shall be a numeric
112 * measure of its surface area Since area is an accumulation (integral)
113 * of the product of two distances, its return value shall be in a unit
114 * of measure appropriate for measuring distances squared.
115 */
116 public double getArea();
117
118 /**
119 * @link aggregationByValue
120 * @clientCardinality 1..*
121 */
122 }
123 /* ********************************************************************
124 Changes to this class. What the people have been up to:
125 $Log$
126 Revision 1.6 2006/07/12 14:46:15 poth
127 comment footer added
128
129 ********************************************************************** */