    001    //$HeadURL: https://svn.wald.intevation.org/svn/deegree/base/branches/2.4_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    }