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.
 *
 **********************************************************************/
 
#pragma once
 
#include <geos/export.h>
 
#include <vector>
#include <iostream>
 
#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;
    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, std::size_t segIndex0,
        const SegmentString& e1, std::size_t 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) = delete;
    NodingValidator& operator=(const NodingValidator& rhs) = delete;
 
public:
 
    NodingValidator(const std::vector<std::unique_ptr<SegmentString>>& newSegStrings)
    {
        segStrings.resize(newSegStrings.size());
        for (size_t i = 0; i < newSegStrings.size(); ++i) {
            segStrings[i] = newSegStrings[i].get();
        }
    }
 
    ~NodingValidator() {}
 
    void checkValid();
 
};
 
 
} // namespace geos.noding
} // namespace geos