SimpleSnapRounder.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/snapround/SimpleSnapRounder.java r320 (JTS-1.12)
 *
 **********************************************************************/
 
#ifndef GEOS_NODING_SNAPROUND_SIMPLESNAPROUNDER_H
#define GEOS_NODING_SNAPROUND_SIMPLESNAPROUNDER_H
 
#include <geos/export.h>
 
#include <vector>
 
#include <geos/inline.h>
 
#include <geos/noding/Noder.h> // for inheritance
#include <geos/algorithm/LineIntersector.h> // for composition
#include <geos/geom/Coordinate.h> // for use in vector
#include <geos/geom/PrecisionModel.h> // for inlines (should drop)
 
// Forward declarations
namespace geos {
        namespace geom {
                //class PrecisionModel;
        }
        namespace algorithm {
                class LineIntersector;
        }
        namespace noding {
                class SegmentString;
                class NodedSegmentString;
                namespace snapround {
                        class HotPixel;
                }
        }
}
 
namespace geos {
namespace noding { // geos::noding
namespace snapround { // geos::noding::snapround

class GEOS_DLL SimpleSnapRounder: public Noder { // implements NoderIface
 
public:
 
        SimpleSnapRounder(const geom::PrecisionModel& newPm);
 
        std::vector<SegmentString*>* getNodedSubstrings() const;
 
        void computeNodes(std::vector<SegmentString*>* inputSegmentStrings);
 
        void add(const SegmentString* segStr);

        void computeVertexSnaps(const std::vector<SegmentString*>& edges);
 
private:
 
        const geom::PrecisionModel& pm;
        algorithm::LineIntersector li;
        double scaleFactor;
        std::vector<SegmentString*>* nodedSegStrings;
 
        void checkCorrectness(std::vector<SegmentString*>& inputSegmentStrings);
 
        void snapRound(std::vector<SegmentString*>* segStrings,
                        algorithm::LineIntersector& li);

        void findInteriorIntersections(std::vector<SegmentString*>& segStrings,
                        algorithm::LineIntersector& li, std::vector<geom::Coordinate>& ret);

        void computeSnaps(const std::vector<SegmentString*>& segStrings,
                std::vector<geom::Coordinate>& snapPts);
 
        void computeSnaps(NodedSegmentString* ss, std::vector<geom::Coordinate>& snapPts);

        void computeVertexSnaps(NodedSegmentString* e0, NodedSegmentString* e1);
 
    // Declare type as noncopyable
    SimpleSnapRounder(const SimpleSnapRounder& other);
    SimpleSnapRounder& operator=(const SimpleSnapRounder& rhs);
};
 
} // namespace geos::noding::snapround
} // namespace geos::noding
} // namespace geos
 
#endif // GEOS_NODING_SNAPROUND_SIMPLESNAPROUNDER_H