001    //$HeadURL: svn+ssh://jwilden@svn.wald.intevation.org/deegree/base/branches/2.5_testing/src/org/deegree/model/spatialschema/CurveSegment.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    import org.deegree.model.crs.CoordinateSystem;
040    
041    /**
042     * The interface defines the root of each unit building Curves
043     *
044     *
045     * @author <a href="mailto:poth@lat-lon.de">Andreas Poth</a>
046     * @author last edited by: $Author: mschneider $
047     *
048     * @version $Revision: 18195 $, $Date: 2009-06-18 17:55:39 +0200 (Do, 18 Jun 2009) $
049     */
050    public interface CurveSegment extends GenericCurve {
051    
052        /**
053         * @return the number of points building the curve segment
054         */
055        int getNumberOfPoints();
056    
057        /**
058         * @return all positions of the segement as array of Point
059         */
060        Position[] getPositions();
061    
062        /**
063         * @param index
064         *            to get the curve
065         * @return the curve position at the submitted index
066         */
067        Position getPositionAt( int index );
068    
069        /**
070         * reverses the direction of the curvesegment
071         */
072        void reverse();
073    
074        /**
075         * @return the coordinate system of the curve segment
076         */
077        CoordinateSystem getCoordinateSystem();
078    
079        /**
080         * The Boolean valued operation "intersects" shall return TRUE if this Geometry intersects another Geometry. Within
081         * a Complex, the Primitives do not intersect one another. In general, topologically structured data uses shared
082         * geometric objects to capture intersection information.
083         *
084         * @param gmo
085         * @return true if this geometry intersects with given geometry.
086         */
087        boolean intersects( Geometry gmo );
088    
089        /**
090         * The Boolean valued operation "contains" shall return TRUE if this Geometry contains another Geometry.
091         *
092         * @param gmo
093         * @return true if this geometry contains given geometry.
094         */
095        boolean contains( Geometry gmo );
096    
097    }