ParametricShapeTangentFunctor.h

 
#pragma once

 
#if defined(ParametricShapeTangentFunctor_RECURSES)
#error Recursive header files inclusion detected in ParametricShapeTangentFunctor.h
#else // defined(ParametricShapeTangentFunctor_RECURSES)
#define ParametricShapeTangentFunctor_RECURSES
 
#if !defined ParametricShapeTangentFunctor_h
#define ParametricShapeTangentFunctor_h

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

  // template class ParametricShapeTangentFunctor
  template <typename TParametricShape>
  class ParametricShapeTangentFunctor
  {
 
    // ----------------------- Standard services ------------------------------
  public:

    typedef TParametricShape ParametricShape;

    typedef typename TParametricShape::RealPoint RealPoint;

    typedef typename TParametricShape::RealPoint Quantity;

    ParametricShapeTangentFunctor() = delete;
 

    ParametricShapeTangentFunctor(const ParametricShape &aShape): myShape(aShape) {}
 

    ~ParametricShapeTangentFunctor() = default;
 
    // ----------------------- Interface --------------------------------------
  public:

    ParametricShapeTangentFunctor & operator= ( const ParametricShapeTangentFunctor & other ) = delete;
 

    Quantity operator()(const RealPoint &aPoint) const
    {
      double t = myShape.parameter( aPoint );
      return  myShape.tangent( t );
    }
 
 
    // ------------------------- Private Data --------------------------------
  private:

    const ParametricShape &myShape;
 
    // ------------------------- Internals ------------------------------------
  private:
 
  }; // end of class ParametricShapeTangentFunctor
 
} // namespace DGtal
 
                                                                        //
 
#endif // !defined ParametricShapeTangentFunctor_h
 
#undef ParametricShapeTangentFunctor_RECURSES
#endif // else defined(ParametricShapeTangentFunctor_RECURSES)