StabbingLineComputer.h

 
#pragma once

 
#if defined(StabbingLineComputer_RECURSES)
#error Recursive header files inclusion detected in StabbingLineComputer.h
#else // defined(StabbingLineComputer_RECURSES)
#define StabbingLineComputer_RECURSES
 
#if !defined StabbingLineComputer_h
#define StabbingLineComputer_h

// Inclusions
#include <iostream>
#include "DGtal/base/Common.h"
#include <boost/static_assert.hpp>
#include "DGtal/base/CowPtr.h"
#include "DGtal/base/ConceptUtils.h"
#include "DGtal/base/ReverseIterator.h"
#include "DGtal/geometry/curves/SegmentComputerUtils.h"
 
#include "DGtal/geometry/tools/Preimage2D.h"
#include "DGtal/shapes/fromPoints/StraightLineFrom2Points.h"

 
namespace DGtal
{

  // template class StabbingLineComputer
  template <typename TConstIterator>
  class StabbingLineComputer
  {
 
  public:
 
    //required types
    typedef TConstIterator ConstIterator;
    typedef StabbingLineComputer<ConstIterator> Self;
    typedef StabbingLineComputer<ReverseIterator<ConstIterator> > Reverse;
 
    //point type
    typedef typename IteratorCirculatorTraits<ConstIterator>::Value Pair;
    typedef typename Pair::first_type Point;
 
    //Pair::first_type and Pair::second_type should be the same type;
    BOOST_STATIC_ASSERT( ( concepts::ConceptUtils::SameType
                           < typename Pair::first_type, typename Pair::second_type >
                           ::value ) );
 
    //preimage
    typedef StraightLineFrom2Points<Point> StraightLine;
    typedef Preimage2D<StraightLine> Preimage;
    typedef CowPtr<Preimage> PreimagePtr;
 
    // ----------------------- Standard services ------------------------------
  public:

    StabbingLineComputer();

    StabbingLineComputer ( const Self& other );

    Self& operator= ( const Self& other );

    ~StabbingLineComputer();

    bool operator==( const Self & other) const;

    bool operator!=( const Self & other) const;

    Self getSelf() const;

     Reverse getReverse() const;
 
 
    // ----------------------- Interface --------------------------------------
  public:

    bool isValid() const;

    ConstIterator begin() const;

    ConstIterator end() const;
 
    // ----------------------- accessors --------------------------------------

    Point Uf() const;

    Point Ul() const;

    Point Lf() const;

    Point Ll() const;

 
    PreimagePtr getPreimage() const;

    bool isClockwiseOriented() const;

    void getParameters(double& alpha, double& beta, double& gamma) const;

    void projects(double& x, double& y,
                const double& alpha, const double& beta, const double& gamma) const;
 
    // ----------------------- growth operations --------------------------------------

    void init(const ConstIterator& anIt);

    bool extendFront();

    bool isExtendableFront();

    bool isConcave();

    bool isConvex();

    bool extendBack();

    bool isExtendableBack();

    bool isOppositeEndConcave();

    bool isOppositeEndConvex();
 
    //------------------ display -------------------------------
    void selfDisplay ( std::ostream & out ) const;

    //DrawableWithBoard2D* defaultStyle( std::string mode="" ) const;

    std::string className() const;
 
    // ------------------------- Protected Data ------------------------------
  private:
    // ------------------------- Private Data --------------------------------
  private:
    ConstIterator myBegin;
    ConstIterator myEnd;
    PreimagePtr myPreimagePtr;
    bool myFlagIsInit;
    bool myFlagIsCW;
 
    // ------------------------- Hidden services ------------------------------
  protected:
 
 
  private:
 
 
 
    // ------------------------- Internals ------------------------------------
  private:
 
    // ------------------------- Private Data --------------------------------
  private:
 
  }; // end of class StabbingLineComputer
 

  template <typename TConstIterator>
  std::ostream&
  operator<< ( std::ostream & out, const StabbingLineComputer<TConstIterator> & object );
 
} // namespace DGtal
 

// Includes inline functions.
#include "DGtal/geometry/curves/StabbingLineComputer.ih"
 
//                                                                           //
 
#endif // !defined StabbingLineComputer_h
 
#undef StabbingLineComputer_RECURSES
#endif // else defined(StabbingLineComputer_RECURSES)