001    //$HeadURL: svn+ssh://rbezema@svn.wald.intevation.org/deegree/base/branches/2.2_testing/src/org/deegree/model/spatialschema/CurveSegment.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    
045    package org.deegree.model.spatialschema;
046    
047    import org.deegree.model.crs.CoordinateSystem;
048    
049    /**
050     * The interface defines the root of each unit building Curves
051     * 
052     * 
053     * @author <a href="mailto:poth@lat-lon.de">Andreas Poth</a>
054     * @author last edited by: $Author: apoth $
055     * 
056     * @version. $Revision: 9343 $, $Date: 2007-12-27 14:30:32 +0100 (Do, 27 Dez 2007) $
057     */
058    public interface CurveSegment extends GenericCurve {
059    
060        /**
061         * returns the number of points building the curve segment
062         */
063        int getNumberOfPoints();
064    
065        /**
066         * returns all positions of the segement as array of Point
067         */
068        Position[] getPositions();
069    
070        /**
071         * returns the curve position at the submitted index
072         */
073        Position getPositionAt( int index );
074    
075        /**
076         * reverses the direction of the curvesegment
077         */
078        void reverse();
079    
080        /**
081         * returns the coordinate system of the curve segment
082         */
083        CoordinateSystem getCoordinateSystem();
084    
085        /**
086         * The Boolean valued operation "intersects" shall return TRUE if this Geometry intersects
087         * another Geometry. Within a Complex, the Primitives do not intersect one another. In general,
088         * topologically structured data uses shared geometric objects to capture intersection
089         * information.
090         */
091        boolean intersects( Geometry gmo );
092    
093        /**
094         * The Boolean valued operation "contains" shall return TRUE if this Geometry contains another
095         * Geometry.
096         */
097        boolean contains( Geometry gmo );
098    
099    }