covered_by_functor.h

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#ifndef SQL_GIS_COVERED_BY_FUNCTOR_H_INCLUDED
#define SQL_GIS_COVERED_BY_FUNCTOR_H_INCLUDED
 
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/// @file
///
/// This file declares the covered_by functor interface.
///
/// The functor is not intended for use directly by MySQL code.
 
#include <memory>  // std::unique_ptr
 
#include <boost/geometry.hpp>
 
#include "sql/gis/box.h"
#include "sql/gis/functor.h"
#include "sql/gis/geometries.h"
#include "sql/gis/geometries_traits.h"
 
namespace gis {
 
/// Covered_by functor that calls Boost.Geometry with the correct parameter
/// types.
///
/// The functor throws exceptions and is therefore only intended used to
/// implement covered_by or other geographic functions. It should not be used
/// directly by other MySQL code.
class Covered_by : public Functor<bool> {
 private:
  /// Semi-major axis of ellipsoid.
  double m_semi_major;
  /// Semi-minor axis of ellipsoid.
  double m_semi_minor;
 
 public:
  /// Creates a new Covered_by functor.
  ///
  /// @param semi_major Semi-major axis of ellipsoid.
  /// @param semi_minor Semi-minor axis of ellipsoid.
  Covered_by(double semi_major, double semi_minor);
  double semi_major() const { return m_semi_major; }
  double semi_minor() const { return m_semi_minor; }
  bool operator()(const Geometry *g1, const Geometry *g2) const override;
  bool operator()(const Box *b1, const Box *b2) const;
  bool eval(const Geometry *g1, const Geometry *g2) const;
 
  //////////////////////////////////////////////////////////////////////////////
 
  // covered_by(Box, Box)
 
  bool eval(const Cartesian_box *b1, const Cartesian_box *b2) const;
  bool eval(const Geographic_box *b1, const Geographic_box *b2) const;
};
 
}  // namespace gis
 
#endif  // SQL_GIS_COVERED_BY_FUNCTOR_H_INCLUDED