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