001 //$HeadURL: svn+ssh://jwilden@svn.wald.intevation.org/deegree/base/branches/2.5_testing/src/org/deegree/model/spatialschema/OrientablePrimitiveImpl.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 package org.deegree.model.spatialschema;
037
038 import java.io.Serializable;
039
040 import org.deegree.model.crs.CoordinateSystem;
041
042 /**
043 * default implementation of the OrientablePrimitive interface from package deegree.model. the implementation is
044 * abstract because it doesn't make sense to instantiate it.
045 *
046 *
047 * @author <a href="mailto:poth@lat-lon.de">Andreas Poth</a>
048 * @author last edited by: $Author: mschneider $
049 *
050 * @version $Revision: 18195 $, $Date: 2009-06-18 17:55:39 +0200 (Do, 18 Jun 2009) $
051 */
052 public abstract class OrientablePrimitiveImpl extends PrimitiveImpl implements OrientablePrimitive, Serializable {
053 /** Use serialVersionUID for interoperability. */
054 private final static long serialVersionUID = 5655221930434396483L;
055
056 protected char orientation = '+';
057
058 /**
059 * the constructor sets the curves orientation
060 *
061 * @param crs
062 * spatial reference system of the geometry
063 * @param orientation
064 * orientation of the curve ('+'|'-')
065 *
066 * @exception GeometryException
067 * will be thrown if orientation is invalid
068 */
069 protected OrientablePrimitiveImpl( CoordinateSystem crs, char orientation ) throws GeometryException {
070 super( crs );
071 setOrientation( orientation );
072 }
073
074 /**
075 * returns the orientation of a curve
076 *
077 * @return curve orientation ('+'|'-')
078 *
079 */
080 public char getOrientation() {
081 return orientation;
082 }
083
084 /**
085 * sets the curves orientation
086 *
087 * @param orientation
088 * orientation of the curve ('+'|'-')
089 *
090 * @exception GeometryException
091 * will be thrown if orientation is invalid
092 *
093 */
094 public void setOrientation( char orientation )
095 throws GeometryException {
096 if ( ( orientation != '+' ) && ( orientation != '-' ) ) {
097 throw new GeometryException( orientation + " isn't a valid direction" );
098 }
099
100 this.orientation = orientation;
101 }
102
103 }