001    //$HeadURL: svn+ssh://rbezema@svn.wald.intevation.org/deegree/base/branches/2.2_testing/src/org/deegree/model/spatialschema/SurfaceBoundary.java $
002    /*----------------    FILE HEADER  ------------------------------------------
003    
004     This file is part of deegree.
005     Copyright (C) 2001-2008 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    /**
048     * 
049     * Defining the boundary of a surface. The surface boundary is defined as ring surounding the
050     * exterior boundary of the surface and the rings surounding each interior ring of the surface.
051     * 
052     * <p>
053     * -----------------------------------------------------
054     * </p>
055     * 
056     * @author Axel Schaefer
057     * @version $Revision: 9343 $ $Date: 2007-12-27 14:30:32 +0100 (Do, 27 Dez 2007) $
058     *          <p>
059     */
060    
061    public interface SurfaceBoundary extends PrimitiveBoundary {
062        /**
063         * @clientCardinality 0..*
064         */
065    
066        /*
067         * as SurfaceBoundary::exterior[0,1] : Ring; SurfaceBoundary::interior[0..*] : Ring;
068         */
069    
070        /*
071         * A SurfaceBoundary consists of some number of Rings, corresponding to the various components
072         * of its boundary. In the normal 2D case, one of these rings is distinguished as being the
073         * exterior boundary. In a general manifold this is not always possible, in which case all
074         * boundaries shall be listed as interior boundaries, and the exterior will be empty.
075         */
076    
077        /*
078         * get the exterior ring
079         */
080        public Ring getExteriorRing();
081    
082        /*
083         * gets the interior ring(s)
084         */
085        public Ring[] getInteriorRings();
086    
087    }