001 //$HeadURL: https://svn.wald.intevation.org/svn/deegree/base/branches/2.3_testing/src/org/deegree/model/spatialschema/SurfacePatch.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 *
043 * Defining the iso geometry <code>SurfacePatch</code> which is used for building surfaces. A surface patch is made of
044 * one exterior ring and 0..n interior rings. By definition there can't be a surface patch with no exterior ring. A
045 * polygon is a specialized surface patch.
046 *
047 * -----------------------------------------------------
048 *
049 * @author <a href="mailto:poth@lat-lon.de">Andreas Poth</a>
050 * @version $Revision: 18195 $ $Date: 2009-06-18 17:55:39 +0200 (Do, 18. Jun 2009) $
051 */
052
053 public interface SurfacePatch extends GenericSurface {
054
055 /**
056 * The interpolation determines the surface interpolation mechanism used for this SurfacePatch. This mechanism uses
057 * the control points and control parameters defined in the various subclasses to determine the position of this
058 * SurfacePatch.
059 *
060 * @return the surface interpolation of this surface
061 */
062 SurfaceInterpolation getInterpolation();
063
064 /**
065 * @return the exterior ring of a surfacePatch
066 */
067 Position[] getExteriorRing();
068
069 /**
070 * @return the interior rings of a surfacePatch
071 */
072 Position[][] getInteriorRings();
073
074 /**
075 *
076 * @return the exterior ring of a surfacePatch
077 */
078 Ring getExterior();
079
080 /**
081 *
082 * @return the interior rings of a surfacePatch
083 */
084 Ring[] getInterior();
085
086 /**
087 * @return the coordinate system of the surface patch
088 */
089 CoordinateSystem getCoordinateSystem();
090
091 /**
092 * The Boolean valued operation "intersects" shall return TRUE if this surfacepatch intersects another Geometry.
093 * Within a Complex, the Primitives do not intersect one another. In general, topologically structured data uses
094 * shared geometric objects to capture intersection information.
095 *
096 * @param gmo
097 * @return true if this surfacepatch intersects with given Geometry
098 */
099 boolean intersects( Geometry gmo );
100
101 /**
102 * The Boolean valued operation "contains" shall return TRUE if this Geometry contains another Geometry.
103 *
104 * @param gmo
105 * @return true if this surfacepatch contains given Geometry
106 */
107 boolean contains( Geometry gmo );
108
109 /**
110 * The operation "centroid" shall return the mathematical centroid for this surfacepatch. The result is not
111 * guaranteed to be on the object.
112 *
113 * @return the centroid
114 */
115 public Point getCentroid();
116
117 /**
118 * The operation "area" shall return the area of this GenericSurface. The area of a 2 dimensional geometric object
119 * shall be a numeric measure of its surface area Since area is an accumulation (integral) of the product of two
120 * distances, its return value shall be in a unit of measure appropriate for measuring distances squared.
121 */
122 public double getArea();
123
124 }