CoverageGapFinder.h

/**********************************************************************
 *
 * GEOS - Geometry Engine Open Source
 * http://geos.osgeo.org
 *
 * Copyright (C) 2022 Paul Ramsey <pramsey@cleverelephant.ca>
 *
 * 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 <memory>
 
 
// Forward declarations
namespace geos {
namespace geom {
class Geometry;
class LinearRing;
}
}
 
 
 
namespace geos {      // geos
namespace coverage { // geos::coverage
 
class GEOS_DLL CoverageGapFinder {
    using Geometry = geos::geom::Geometry;
    using LinearRing = geos::geom::LinearRing;
 
private:
 
    std::vector<const Geometry*>& m_coverage;
 
    bool isGap(const LinearRing* hole, double gapWidth);
 
 
public:
 
    CoverageGapFinder(std::vector<const Geometry*>& coverage)
        : m_coverage(coverage)
        {};
 
    static std::unique_ptr<Geometry> findGaps(
        std::vector<const Geometry*>& coverage,
        double gapWidth);
 
    std::unique_ptr<Geometry> findGaps(double gapWidth);
 
 
};
 
} // namespace geos::coverage
} // namespace geos