001 //$HeadURL: svn+ssh://jwilden@svn.wald.intevation.org/deegree/base/branches/2.5_testing/src/org/deegree/model/spatialschema/SurfaceBoundary.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 /**
040 *
041 * Defining the boundary of a surface. The surface boundary is defined as ring surrounding the exterior boundary of the
042 * surface and the rings surrounding each interior ring of the surface.
043 * <p>
044 * A SurfaceBoundary consists of some number of Rings, corresponding to the various components of its boundary. In the
045 * normal 2D case, one of these rings is distinguished as being the exterior boundary. In a general manifold this is not
046 * always possible, in which case all boundaries shall be listed as interior boundaries, and the exterior will be empty.
047 *
048 * <p>
049 * -----------------------------------------------------
050 * </p>
051 *
052 * @author Axel Schaefer
053 * @version $Revision: 18195 $ $Date: 2009-06-18 17:55:39 +0200 (Do, 18 Jun 2009) $
054 * <p>
055 */
056
057 public interface SurfaceBoundary extends PrimitiveBoundary {
058
059 /**
060 * get the exterior ring
061 *
062 * @return the exterior ring
063 */
064 public Ring getExteriorRing();
065
066 /**
067 * gets the interior ring(s)
068 *
069 * @return the interior ring(s)
070 */
071 public Ring[] getInteriorRings();
072
073 }