001 //$HeadURL: svn+ssh://rbezema@svn.wald.intevation.org/deegree/base/branches/2.2_testing/src/org/deegree/model/spatialschema/OrientablePrimitiveImpl.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 package org.deegree.model.spatialschema;
045
046 import java.io.Serializable;
047
048 import org.deegree.model.crs.CoordinateSystem;
049
050 /**
051 * default implementation of the OrientablePrimitive interface from package jago.model. the
052 * implementation is abstract because it doesn't make sense to instantiate it.
053 *
054 *
055 * @author <a href="mailto:poth@lat-lon.de">Andreas Poth</a>
056 * @author last edited by: $Author: apoth $
057 *
058 * @version. $Revision: 9343 $, $Date: 2007-12-27 14:30:32 +0100 (Do, 27 Dez 2007) $
059 */
060 abstract class OrientablePrimitiveImpl extends PrimitiveImpl implements OrientablePrimitive, Serializable {
061 /** Use serialVersionUID for interoperability. */
062 private final static long serialVersionUID = 5655221930434396483L;
063
064 protected char orientation = '+';
065
066 /**
067 * the constructor sets the curves orientation
068 *
069 * @param crs
070 * spatial reference system of the geometry
071 * @param orientation
072 * orientation of the curve ('+'|'-')
073 *
074 * @exception GeometryException
075 * will be thrown if orientation is invalid
076 */
077 protected OrientablePrimitiveImpl( CoordinateSystem crs, char orientation ) throws GeometryException {
078 super( crs );
079 setOrientation( orientation );
080 }
081
082 /**
083 * returns the orientation of a curve
084 *
085 * @return curve orientation ('+'|'-')
086 *
087 */
088 public char getOrientation() {
089 return orientation;
090 }
091
092 /**
093 * sets the curves orientation
094 *
095 * @param orientation
096 * orientation of the curve ('+'|'-')
097 *
098 * @exception GeometryException
099 * will be thrown if orientation is invalid
100 *
101 */
102 public void setOrientation( char orientation )
103 throws GeometryException {
104 if ( ( orientation != '+' ) && ( orientation != '-' ) ) {
105 throw new GeometryException( orientation + " isn't a valid direction" );
106 }
107
108 this.orientation = orientation;
109 }
110
111 }