StabbingCircleComputer.h

 
#pragma once
 
#if defined(StabbingCircleComputer_RECURSES)
#error Recursive header files inclusion detected in StabbingCircleComputer.h
#else // defined(StabbingCircleComputer_RECURSES)
#define StabbingCircleComputer_RECURSES
 
#if !defined StabbingCircleComputer_h
#define StabbingCircleComputer_h
 
// Inclusions
#include <iostream>
#include "DGtal/base/Common.h"
#include "DGtal/base/CowPtr.h"
#include "DGtal/base/ConceptUtils.h"
#include "DGtal/geometry/curves/SegmentComputerUtils.h"
 
#include "DGtal/geometry/curves/StabbingLineComputer.h"
#include "DGtal/shapes/fromPoints/CircleFrom2Points.h"
#include "DGtal/geometry/tools/Preimage2D.h"
#include "DGtal/shapes/fromPoints/CircleFrom3Points.h"
#include "DGtal/shapes/fromPoints/Point2ShapePredicate.h"
 
 
namespace DGtal
{
 
  // template class StabbingCircleComputer
  template <typename TConstIterator>
  class StabbingCircleComputer
  {
 
  public:
 
    //requiered types
    typedef TConstIterator ConstIterator;
    typedef StabbingCircleComputer<ConstIterator> Self; 
    typedef StabbingCircleComputer<ReverseIterator<ConstIterator> > Reverse;
 
    //point type
    typedef typename IteratorCirculatorTraits<ConstIterator>::Value Pair; 
    //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 ));
    typedef typename Pair::first_type Point;
    BOOST_STATIC_ASSERT(( Point::dimension == 2 ));
  
  private: 
    
    //other types used for the recognition
    typedef CowPtr<StabbingLineComputer<ConstIterator> > StabbingLineComputerPtr; 
    typedef CircleFrom3Points<Point> Circle; 
      
    //Predicates used to decide whether the current circle is still seperating or not
    typedef functors::Point2ShapePredicate<Circle,false,true> 
      PInCirclePred; 
    typedef functors::Point2ShapePredicate<Circle,true,true> 
      QInCirclePred; 
  
    // ----------------------- Standard services ------------------------------
  public:
 
    StabbingCircleComputer();
 
    StabbingCircleComputer ( const Self& other );
 
    Self& operator= ( const Self& other );
 
    ~StabbingCircleComputer();
 
    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 -------------------------------
 
    bool isStraight() const;
 
    StabbingLineComputerPtr getStabbingLineComputerPtr() const;
    
    Circle getSeparatingCircle() const;
    
    // ----------------------- growth operations --------------------------------------
 
    void init(const ConstIterator& anIt);
 
    bool extendFront();
 
    bool isExtendableFront();
 
    bool extendBack();
 
    bool isExtendableBack();
 
    //------------------ display -------------------------------
    void selfDisplay ( std::ostream & out ) const;
 
    
    std::string className() const;
    
 
    // ------------------------- Protected Datas ------------------------------
  private:
    // ------------------------- Private Datas --------------------------------
  private:
    ConstIterator myBegin;
    ConstIterator myEnd;
    StabbingLineComputerPtr mySegPtr; 
    Circle myCircle; 
    bool myFlagIsInit; 
 
    // ------------------------- Hidden services ------------------------------
  protected:
 
 
  private:
 
 
    // ------------------------- Internals ------------------------------------
  private:
    
    template <typename TIterator>
    bool isCircularlySeparable(const TIterator& itb, const TIterator& ite, 
                               const Point& aPole, 
                               Point& Pf, Point& Pl, Point& Qf, Point& Ql);  
  
    // ------------------------- Private Datas --------------------------------
  private:
 
 
  }; // end of class StabbingCircleComputer
 
 
  template <typename TConstIterator>
  std::ostream&
  operator<< ( std::ostream & out, const StabbingCircleComputer<TConstIterator> & object );
 
} // namespace DGtal
 
 
// Includes inline functions.
#include "DGtal/geometry/curves/StabbingCircleComputer.ih"
 
//                                                                           //
 
#endif // !defined StabbingCircleComputer_h
 
#undef StabbingCircleComputer_RECURSES
#endif // else defined(StabbingCircleComputer_RECURSES)