NodingValidator.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.
 *
 **********************************************************************/
 
#ifndef GEOS_NODING_NODINGVALIDATOR_H
#define GEOS_NODING_NODINGVALIDATOR_H
 
#include <geos/export.h>
 
#include <vector>
#include <iostream>
 
#include <geos/inline.h>
 
#include <geos/algorithm/LineIntersector.h>
//#include <geos/geom/Coordinate.h>
 
// Forward declarations
namespace geos {
        namespace geom {
                class Coordinate;
        }
        namespace noding {
                class SegmentString;
        }
}
 
namespace geos {
namespace noding { // geos.noding

class GEOS_DLL NodingValidator {
private:
        algorithm::LineIntersector li;
        const std::vector<SegmentString*>& segStrings;

        void checkCollapses() const;
 
        void checkCollapses(const SegmentString& ss) const;
 
        void checkCollapse(const geom::Coordinate& p0, const geom::Coordinate& p1,
                        const geom::Coordinate& p2) const;

        void checkInteriorIntersections();
 
        void checkInteriorIntersections(const SegmentString& ss0,
                        const SegmentString& ss1);
 
        void checkInteriorIntersections(
                        const SegmentString& e0, unsigned int segIndex0,
                        const SegmentString& e1, unsigned int segIndex1);

        void checkEndPtVertexIntersections() const;
 
        void checkEndPtVertexIntersections(const geom::Coordinate& testPt,
                        const std::vector<SegmentString*>& segStrings) const;

        bool hasInteriorIntersection(const algorithm::LineIntersector& aLi,
                        const geom::Coordinate& p0, const geom::Coordinate& p1) const;
 
    // Declare type as noncopyable
    NodingValidator(const NodingValidator& other);
    NodingValidator& operator=(const NodingValidator& rhs);
 
public:
 
        NodingValidator(const std::vector<SegmentString*>& newSegStrings):
                segStrings(newSegStrings)
        {}
 
        ~NodingValidator() {}
 
        void checkValid();
 
};
 
 
} // namespace geos.noding
} // namespace geos
 
#endif // GEOS_NODING_NODINGVALIDATOR_H