CircleFrom3Points.h

 
#pragma once

 
#if defined(CircleFrom3Points_RECURSES)
#error Recursive header files inclusion detected in CircleFrom3Points.h
#else // defined(CircleFrom3Points_RECURSES)
#define CircleFrom3Points_RECURSES
 
#if !defined CircleFrom3Points_h
#define CircleFrom3Points_h

// Inclusions
#include <iostream>
 
#include "DGtal/base/Common.h"
#include "DGtal/kernel/PointVector.h"
#include "DGtal/kernel/NumberTraits.h"
#include "DGtal/io/Color.h"
 
namespace DGtal
{
 

  // template class CircleFrom3Points
  template <typename TPoint>
  class CircleFrom3Points
  {
 
    BOOST_STATIC_ASSERT(( TPoint::dimension == 2 ));
 
    // ----------------------- associated types ------------------------------
  public:
 
    typedef typename TPoint::Coordinate Coordinate;
    typedef Coordinate Distance; //to promote
    typedef TPoint Point;
    typedef TPoint Vector;
 
    // ----------------------- Standard services ------------------------------
  public:

    CircleFrom3Points();
 

    CircleFrom3Points(const Point& aFirstPoint, const Point& aSecondPoint, const Point& aThirdPoint);

    void init(const Point& aFirstPoint, const Point& aSecondPoint, const Point& aThirdPoint);

    CircleFrom3Points ( const CircleFrom3Points & other );

    CircleFrom3Points & operator= ( const CircleFrom3Points & other );
 

    ~CircleFrom3Points();
 
    // ----------------------- Interface --------------------------------------
  public:

    Distance signedDistance(const Point& aP) const;
 
    //------------------ accessors -------------------------------
    bool isValid() const;

 
    void getParameters(double& cx, double& cy, double& rr) const;

    double getCurvature() const;

    const Point & p() const
    {
      return myP;
    };

    const Point & q() const
    {
      return myQ;
    };

    const Point & r() const
    {
      return myR;
    };
 
 
    //------------------ display -------------------------------

    void selfDisplay ( std::ostream & out ) const;

    std::string className() const;
 
 
    // ------------------------- Protected Data ------------------------------
  private:
    // ------------------------- Private Data --------------------------------
  private:
    //the three points that uniquely define the circle
    Point myP;
    Point myQ;
    Point myR;
    // ------------------------- Hidden services ------------------------------
  protected:
 
 
  private:
 
 
 
    // ------------------------- Internals ------------------------------------
  private:
 
 
 
 
  }; // end of class CircleFrom3Points
 

  template <typename TPoint>
  inline
  std::ostream&
  operator<< ( std::ostream & out,
        const CircleFrom3Points<TPoint> & object )
  {
    object.selfDisplay( out );
    return out;
  }
 
 
} // namespace DGtal
 

// Includes inline functions.
#include "DGtal/shapes/fromPoints/CircleFrom3Points.ih"
 
//                                                                           //
 
#endif // !defined CircleFrom3Points_h
 
#undef CircleFrom3Points_RECURSES
#endif // else defined(CircleFrom3Points_RECURSES)