ImplicitBall.h

 
#pragma once

 
#if defined(ImplicitBall_RECURSES)
#error Recursive header files inclusion detected in ImplicitBall.h
#else // defined(ImplicitBall_RECURSES)
#define ImplicitBall_RECURSES
 
#if !defined ImplicitBall_h
#define ImplicitBall_h

// Inclusions
#include <iostream>
#include "DGtal/base/Common.h"
#include "DGtal/kernel/NumberTraits.h"
#include "DGtal/shapes/implicit/CImplicitFunction.h"
 
namespace DGtal
{


 
  template <typename TSpace>
  class ImplicitBall
  {
 
  public:
    typedef ImplicitBall<TSpace> Self;
    typedef TSpace Space;
    typedef typename Space::RealPoint RealPoint;
    typedef typename Space::Integer Integer;
    typedef double Value;

    ImplicitBall(const RealPoint &aCenter, const double &aRadius): myCenter(aCenter),
                myRadius(aRadius)
    {};

    ~ImplicitBall();
 
 
    // ----------------------- Interface --------------------------------------
  public:
 
    inline
    Value operator()(const RealPoint &aPoint) const
    {
        return myRadius - (aPoint - myCenter ).norm();
    }
 
    inline
    Orientation orientation(const RealPoint &aPoint) const
    {
      if (this->operator()(aPoint) > 0.0)
        return INSIDE;
      else
        if (this->operator()(aPoint) < 0.0)
          return OUTSIDE;
        else
          return ON;
    }
 
    inline
    RealPoint getLowerBound() const
    {
      return (myCenter - RealPoint::diagonal(myRadius));
    }
 
    inline
    RealPoint getUpperBound() const
    {
      return (myCenter + RealPoint::diagonal(myRadius));
    }

    RealPoint center() const
    {
      return myCenter;
    }

    inline
    void moveTo( const RealPoint& newCenter )
    {
      myCenter = newCenter;
    }
 
    // ----------------------- Interface --------------------------------------
  public:

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

    bool isValid() const;
 
    // ------------------------- Protected Data ------------------------------
  private:
    // ------------------------- Private Data --------------------------------
  private:

    RealPoint myCenter;

    double myRadius;
 
    // ------------------------- Hidden services ------------------------------
  protected:

    ImplicitBall();
 
  private:

    ImplicitBall & operator= ( const ImplicitBall & other );
 
 
  }; // end of class ImplicitBall
 

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

// Includes inline functions.
#include "DGtal/shapes/implicit/ImplicitBall.ih"
 
//                                                                           //
 
#endif // !defined ImplicitBall_h
 
#undef ImplicitBall_RECURSES
#endif // else defined(ImplicitBall_RECURSES)