#include <MultivariateFunctorScanner.h>

Public Member Functions
	MultivariateFunctorScanner (const AbsMultivariateFunctor &fcn, const std::vector< IndexMapper > &maps)

double	operator() (const unsigned *index, const unsigned indexLen) const

Private Member Functions
	MultivariateFunctorScanner ()

Private Attributes
std::vector< double >	buf_

unsigned	dim_

const AbsMultivariateFunctor &	fcn_

const std::vector< IndexMapper > &	mapping_

Detailed Description

template<class IndexMapper>
class npstat::MultivariateFunctorScanner< IndexMapper >

This class adapts an object derived from AbsMultivariateFunctor so that it can be used with ArrayND method "functorFill" and such

Definition at line 27 of file MultivariateFunctorScanner.h.

Constructor & Destructor Documentation

template<class IndexMapper >

npstat::MultivariateFunctorScanner< IndexMapper >::MultivariateFunctorScanner	(	const AbsMultivariateFunctor &	fcn,
		const std::vector< IndexMapper > &	maps
	)

inline

A mapper for each coordinate in the "maps" argument will convert the array index into a proper argument for the scanned density.

This functor will NOT make copies of either "fcn" or "maps" parameters. These parameters will be used by reference only (aliased). It is up to the user of this class to ensure proper lifetime of these objects.

Definition at line 40 of file MultivariateFunctorScanner.h.

References npstat::MultivariateFunctorScanner< IndexMapper >::dim_, and npstat::AbsMultivariateFunctor::maxDim().

             : fcn_(fcn), mapping_(maps), buf_(fcn.minDim()), dim_(fcn.minDim())
         {
             if (!(dim_ && dim_ == maps.size())) throw npstat::NpstatInvalidArgument(
                 "In npstat::MultivariateFunctorScanner constructor: "
                 "incompatible arguments");
             if (dim_ != fcn.maxDim()) throw npstat::NpstatInvalidArgument(
                 "In npstat::MultivariateFunctorScanner constructor: "
                 "functors of variable dimensionality are not supported");
         }

template<class IndexMapper >

npstat::MultivariateFunctorScanner< IndexMapper >::MultivariateFunctorScanner ( )

private

Member Function Documentation

template<class IndexMapper >

double npstat::MultivariateFunctorScanner< IndexMapper >::operator()	(	const unsigned *	index,
		const unsigned	indexLen
	)		const

inline

Calculate the functor value for the given array indices

Definition at line 53 of file MultivariateFunctorScanner.h.

References assert(), npstat::MultivariateFunctorScanner< IndexMapper >::buf_, npstat::MultivariateFunctorScanner< IndexMapper >::dim_, npstat::MultivariateFunctorScanner< IndexMapper >::fcn_, i, npstat::MultivariateFunctorScanner< IndexMapper >::mapping_, and x.

         {
             if (dim_ != indexLen) throw npstat::NpstatInvalidArgument(
                 "In npstat::MultivariateFunctorScanner::operator(): "
                 "incompatible input point dimensionality");
             assert(index);
             double* x = &buf_[0];
             for (unsigned i=0; i<dim_; ++i)
                 x[i] = mapping_[i](index[i]);
             return fcn_(x, dim_);
         }