MCIndexNoder.h

/**********************************************************************
 *
 * GEOS - Geometry Engine Open Source
 * http://geos.osgeo.org
 *
 * 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.
 *
 **********************************************************************
 *
 * Last port: noding/MCIndexNoder.java rev. 1.6 (JTS-1.9)
 *
 **********************************************************************/
 
#ifndef GEOS_NODING_MCINDEXNODER_H
#define GEOS_NODING_MCINDEXNODER_H
 
#include <geos/export.h>
 
#include <geos/inline.h>
 
#include <geos/index/chain/MonotoneChainOverlapAction.h> // for inheritance
#include <geos/noding/SinglePassNoder.h> // for inheritance
#include <geos/index/strtree/STRtree.h> // for composition
#include <geos/util.h>
 
#include <vector>
#include <iostream>
 
#ifdef _MSC_VER
#pragma warning(push)
#pragma warning(disable: 4251) // warning C4251: needs to have dll-interface to be used by clients of class
#endif
 
// Forward declarations
namespace geos {
        namespace geom {
                class LineSegment;
        }
        namespace noding {
                class SegmentString;
                class SegmentIntersector;
        }
}
 
namespace geos {
namespace noding { // geos.noding

class GEOS_DLL MCIndexNoder : public SinglePassNoder {
 
private:
        std::vector<index::chain::MonotoneChain*> monoChains;
        index::strtree::STRtree index;
        int idCounter;
        std::vector<SegmentString*>* nodedSegStrings;
        // statistics
        int nOverlaps;
 
        void intersectChains();
 
        void add(SegmentString* segStr);
 
public:
 
        MCIndexNoder(SegmentIntersector *nSegInt=NULL)
                :
                SinglePassNoder(nSegInt),
                idCounter(0),
                nodedSegStrings(NULL),
                nOverlaps(0)
        {}
 
        ~MCIndexNoder();

        std::vector<index::chain::MonotoneChain*>& getMonotoneChains() { return monoChains; }
 
        index::SpatialIndex& getIndex();
 
        std::vector<SegmentString*>* getNodedSubstrings() const;
 
        void computeNodes(std::vector<SegmentString*>* inputSegmentStrings);
 
        class SegmentOverlapAction : public index::chain::MonotoneChainOverlapAction {
        public:
                SegmentOverlapAction(SegmentIntersector& newSi)
                        :
                        index::chain::MonotoneChainOverlapAction(),
                        si(newSi)
                {}
 
                void overlap(index::chain::MonotoneChain& mc1, std::size_t start1,
            index::chain::MonotoneChain& mc2, std::size_t start2);
    private:
        SegmentIntersector& si;
 
        // Declare type as noncopyable
        SegmentOverlapAction(const SegmentOverlapAction& other);
        SegmentOverlapAction& operator=(const SegmentOverlapAction& rhs);
        };
        
};
 
} // namespace geos.noding
} // namespace geos
 
#ifdef _MSC_VER
#pragma warning(pop)
#endif
 
#ifdef GEOS_INLINE
# include <geos/noding/MCIndexNoder.inl>
#endif
 
#endif // GEOS_NODING_MCINDEXNODER_H