DGtal::ParametricShapeTangentFunctor< TParametricShape > Class Template Reference

#include <ParametricShapeTangentFunctor.h>

Public Types
typedef TParametricShape	ParametricShape
typedef TParametricShape::RealPoint	RealPoint
typedef TParametricShape::RealPoint	Quantity

Public Member Functions
	ParametricShapeTangentFunctor ()
	ParametricShapeTangentFunctor (ParametricShape *aShape)
	~ParametricShapeTangentFunctor ()
ParametricShapeTangentFunctor &	operator= (const ParametricShapeTangentFunctor &other)
Quantity	operator() (const RealPoint &aPoint)

Private Attributes
ParametricShape *	myShape

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Detailed Description

template<typename TParametricShape>
class DGtal::ParametricShapeTangentFunctor< TParametricShape >

Aim: implements a functor that computes the tangent vector at a given point of a parametric shape.

Description of template class 'ParametricShapeTangentFunctor'

Template Parameters:

TParametricShape

a model of parametric shape.

Definition at line 63 of file ParametricShapeTangentFunctor.h.

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Member Typedef Documentation

template<typename TParametricShape >

typedef TParametricShape DGtal::ParametricShapeTangentFunctor< TParametricShape >::ParametricShape

Type of parametric shape.

Definition at line 70 of file ParametricShapeTangentFunctor.h.

template<typename TParametricShape >

typedef TParametricShape::RealPoint DGtal::ParametricShapeTangentFunctor< TParametricShape >::Quantity

Type of the functor output.

Definition at line 76 of file ParametricShapeTangentFunctor.h.

template<typename TParametricShape >

typedef TParametricShape::RealPoint DGtal::ParametricShapeTangentFunctor< TParametricShape >::RealPoint

Type of points.

Definition at line 73 of file ParametricShapeTangentFunctor.h.

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Constructor & Destructor Documentation

template<typename TParametricShape >

DGtal::ParametricShapeTangentFunctor< TParametricShape >::ParametricShapeTangentFunctor ( )

inline

Constructor.

Definition at line 81 of file ParametricShapeTangentFunctor.h.

{}

template<typename TParametricShape >

DGtal::ParametricShapeTangentFunctor< TParametricShape >::ParametricShapeTangentFunctor ( ParametricShape *  aShape )

inline

Constructor..

Parameters:

aShape

the input shape.

Definition at line 89 of file ParametricShapeTangentFunctor.h.

: myShape(aShape) {};

template<typename TParametricShape >

DGtal::ParametricShapeTangentFunctor< TParametricShape >::~ParametricShapeTangentFunctor ( )

inline

Destructor.

Definition at line 95 of file ParametricShapeTangentFunctor.h.

{}

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Member Function Documentation

template<typename TParametricShape >

Quantity DGtal::ParametricShapeTangentFunctor< TParametricShape >::operator() ( const RealPoint &  aPoint )

inline

Compute the tangent at [aPoint]

Parameters:

aPoint

the point at which the tangent is computed.

Returns:

the tangent at [aPoint].

Definition at line 119 of file ParametricShapeTangentFunctor.h.

References DGtal::ParametricShapeTangentFunctor< TParametricShape >::myShape.

    {
      ASSERT(myShape);

      double t = myShape->parameter( aPoint );   
      return  myShape->tangent( t );
    }

template<typename TParametricShape >

ParametricShapeTangentFunctor& DGtal::ParametricShapeTangentFunctor< TParametricShape >::operator= ( const ParametricShapeTangentFunctor< TParametricShape > &  other )

inline

Assignment.

Parameters:

other

the object to copy.

Returns:

a reference on 'this'. Forbidden by default.

Definition at line 106 of file ParametricShapeTangentFunctor.h.

References DGtal::ParametricShapeTangentFunctor< TParametricShape >::myShape.

    {
      myShape = other.myShape;
      return *this;
    }

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Field Documentation

template<typename TParametricShape >

ParametricShape* DGtal::ParametricShapeTangentFunctor< TParametricShape >::myShape

private

Copy of the implicit shape.

Definition at line 132 of file ParametricShapeTangentFunctor.h.

Referenced by DGtal::ParametricShapeTangentFunctor< TParametricShape >::operator()(), and DGtal::ParametricShapeTangentFunctor< TParametricShape >::operator=().

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The documentation for this class was generated from the following file:

• ParametricShapeTangentFunctor.h