ElementaryInterface (formerly FunctorInterfaceWrapper) interfaces a c-function. More...

#include <function_interface.h>

Inheritance diagram for madness::ElementaryInterface< T, NDIM >:

Collaboration diagram for madness::ElementaryInterface< T, NDIM >:

Public Types
typedef GenTensor< T >	coeffT

typedef Vector< double, NDIM >	coordT
	Type of vector holding coordinates.

Public Types inherited from madness::FunctionFunctorInterface< T, NDIM >
typedef GenTensor< T >	coeffT

typedef Key< NDIM >	keyT

typedef T	value_type

Public Member Functions
	ElementaryInterface (T(*f)(const coordT &))

T	operator() (const coordT &x) const
	You should implement this to return `f(x)`

coeffT	values (const Key< NDIM > &key, const Tensor< double > &quad_x) const

Public Member Functions inherited from madness::FunctionFunctorInterface< T, NDIM >
	FunctionFunctorInterface ()

virtual	~FunctionFunctorInterface ()

virtual coeffT	coeff (const keyT &) const

virtual void	operator() (const Vector< double , 1 > &xvals, T fvals, int npts) const

virtual void	operator() (const Vector< double , 2 > &xvals, T fvals, int npts) const

virtual void	operator() (const Vector< double , 3 > &xvals, T fvals, int npts) const

virtual void	operator() (const Vector< double , 4 > &xvals, T fvals, int npts) const

virtual void	operator() (const Vector< double , 5 > &xvals, T fvals, int npts) const

virtual void	operator() (const Vector< double , 6 > &xvals, T fvals, int npts) const

virtual bool	provides_coeff () const
	does this functor directly provide sum coefficients? or only function values?

virtual bool	screened (const Vector< double, NDIM > &c1, const Vector< double, NDIM > &c2) const
	Can we screen this function based on the bounding box information?

void	set_length_scale (double lo)
	adapt the special level to resolve the smallest length scale

virtual Level	special_level ()
	Override this change level refinement for special points (default is 6)

virtual std::vector< Vector< double, NDIM > >	special_points () const
	Override this to return list of special points to be refined more deeply.

virtual bool	supports_vectorized () const
	Does the interface support a vectorized operator()?

Public Attributes
T(*	f )(const coordT &)

Public Attributes inherited from madness::FunctionFunctorInterface< T, NDIM >
Level	special_level_

Detailed Description

template<typename T, std::size_t NDIM>
class madness::ElementaryInterface< T, NDIM >

ElementaryInterface (formerly FunctorInterfaceWrapper) interfaces a c-function.

hard-code your favorite function and interface it with this; Does only provide function values, no MRA coefficients. Care must be taken if the function we refer to is a singular function, and a on-demand function at the same time, since direct computation of coefficients via mraimpl::project might suffer from inaccurate quadrature.