SingleInteriorIntersectionFinder.h

/**********************************************************************
 * $Id: SingleInteriorIntersectionFinder.h 2554 2009-06-06 21:14:51Z strk $
 *
 * GEOS - Geometry Engine Open Source
 * http://geos.refractions.net
 *
 * Copyright (C) 2006      Refractions Research Inc.
 *
 * This is free software; you can redistribute and/or modify it under
 * the terms of the GNU Lesser General Public Licence as published
 * by the Free Software Foundation. 
 * See the COPYING file for more information.
 *
 **********************************************************************/

#ifndef GEOS_NODING_SINGLEINTERIORINTERSECTIONFINDER_H
#define GEOS_NODING_SINGLEINTERIORINTERSECTIONFINDER_H

#include <geos/noding/SegmentIntersector.h> // for inheritance
#include <geos/geom/Coordinate.h> // for composition

#include <vector>

// Forward declarations
namespace geos {
        namespace algorithm {
                class LineIntersector;
        }
        namespace noding {
                class SegmentString;
        }
}

namespace geos {
namespace noding { // geos.noding

class SingleInteriorIntersectionFinder: public SegmentIntersector
{

private:
        algorithm::LineIntersector& li;
        geom::Coordinate interiorIntersection;
        std::vector<geom::Coordinate> intSegments;

public:

        SingleInteriorIntersectionFinder(algorithm::LineIntersector& newLi)
                :
                li(newLi),
                interiorIntersection(geom::Coordinate::getNull())
        {
        }

        bool hasIntersection() const
        { 
                return !interiorIntersection.isNull(); 
        }
  
        const geom::Coordinate& getInteriorIntersection() const
        {    
                return interiorIntersection;  
        }

        const std::vector<geom::Coordinate>& getIntersectionSegments() const
        {
                return intSegments;
        }
  
        void processIntersections(
                SegmentString* e0,  int segIndex0,
                SegmentString* e1,  int segIndex1);
  
        bool isDone() const
        { 
                return !interiorIntersection.isNull();
        }
};

} // namespace geos.noding
} // namespace geos

#endif // GEOS_NODING_SINGLEINTERIORINTERSECTIONFINDER_H

/**********************************************************************
 * $Log$
 **********************************************************************/

---