ArithmeticalDSLKernel.h

#pragma once

#if defined(ArithmeticalDSLKernel_RECURSES)
#error Recursive header files inclusion detected in ArithmeticalDSLKernel.h
#else // defined(ArithmeticalDSLKernel_RECURSES)

#define ArithmeticalDSLKernel_RECURSES

#if !defined ArithmeticalDSLKernel_h

#define ArithmeticalDSLKernel_h

// Inclusions
#include <iostream>
#include "DGtal/base/Common.h"

#include "DGtal/kernel/SpaceND.h"
#include "DGtal/kernel/NumberTraits.h"

namespace DGtal
{

  // template struct ArithmeticalDSLKernel
  template <typename TCoordinate,
            unsigned short adjacency = 8>
  struct ArithmeticalDSLKernel
  {

    // ----------------------- Inner types ------------------------------------
  public:
    typedef SpaceND<2, TCoordinate> Space;
    typedef typename Space::Vector Vector;
    typedef std::pair<Vector, Vector> Steps;

    
    // ----------------------- static members ---------------------------------
  public:
    BOOST_STATIC_CONSTANT(unsigned short, ForegroundAdjacency = 8); // adjacency
    
    BOOST_STATIC_CONSTANT(unsigned short, BackgroundAdjacency = 4); // complementary adjacency
    
    // ----------------------- static methods ---------------------------------
  public:
    template <typename TInteger>
    static Vector shift(const TInteger& a, const TInteger& b);

    template <typename TInteger>
    static Steps steps(const TInteger& a, const TInteger& b);

    template<typename TInteger>
    static TInteger norm(const TInteger& a, const TInteger& b);

  };

  // specialization of the template struct ArithmeticalDSLKernel for 4-adjacency
  template <typename TCoordinate>
  struct ArithmeticalDSLKernel<TCoordinate, 4>
  {
    // ----------------------- Inner types ------------------------------------
  public:
    typedef SpaceND<2, TCoordinate> Space;
    typedef typename Space::Vector Vector;
    typedef std::pair<Vector, Vector> Steps;
    
    
    // ----------------------- static members ---------------------------------
  public:
    BOOST_STATIC_CONSTANT(unsigned short, ForegroundAdjacency = 4); // adjacency
    
    BOOST_STATIC_CONSTANT(unsigned short, BackgroundAdjacency = 8); // complementary adjacency

    // ----------------------- static methods ---------------------------------
  public:
    template <typename TInteger>
    static Vector shift(const TInteger& a, const TInteger& b);
    template <typename TInteger>
    static Steps steps(const TInteger& a, const TInteger& b);
    template<typename TInteger>
    static TInteger norm(const TInteger& a, const TInteger& b);
    
  };

} // namespace DGtal


// Includes inline functions.
#include "DGtal/geometry/curves/ArithmeticalDSLKernel.ih"

//                                                                           //

#endif // !defined ArithmeticalDSLKernel_h

#undef ArithmeticalDSLKernel_RECURSES
#endif // else defined(ArithmeticalDSLKernel_RECURSES)