aims::TabulBSpline Class Reference

Pre-computed B-Spline values In the "order 0" case, the array is not used (the analytical expression is too simple) More...

#include <aims/math/bspline.h>

Inheritance diagram for aims::TabulBSpline:

Collaboration diagram for aims::TabulBSpline:

Public Member Functions
	TabulBSpline (unsigned order=3, unsigned nder=1, float scale=1., bool shifted=false, size_t length=std::numeric_limits< unsigned short >::max() - 1)
	TabulBSpline (const TabulBSpline &other)
virtual	~TabulBSpline ()
TabulBSpline &	operator= (const TabulBSpline &other)
virtual double	at (double x) const
	Get valuespline value at point x.
virtual double	derivative (double x, unsigned n=1) const
	n-th derivative of the spline at point x
virtual void	reset (unsigned order=3, unsigned nder=1, float scale=1., bool shifted=false, size_t length=std::numeric_limits< unsigned short >::max() - 1)
	Set parameters Be aware that a call to reset, setOrder, setNbDer and setLength will trigger a reallocation of the array and a recomputing of the values.
virtual void	setOrder (unsigned order)
	order
virtual void	setNbDer (unsigned nder)
	number of derivative stored
virtual void	setLength (size_t length)
	array length
virtual unsigned	nder () const
	Get parametersnumber of derivative stored.
virtual size_t	length () const
	array length
Public Member Functions inherited from aims::BSpline
	BSpline (unsigned order=3, float scale=1., bool shifted=false)
	BSpline (const BSpline &other)
virtual	~BSpline ()
BSpline &	operator= (const BSpline &other)
virtual void	reset (unsigned order=3, float scale=1., bool shifted=false)
	Set parameters @ { (Re)set all parameters.
virtual void	setScale (float scale)
	scale
virtual void	setShifted (bool shifted)
	shifted
virtual void	setCentered (bool centered)
	centered
unsigned	order () const
	Get parameters @ { spline order.
float	scale () const
	spline scale
bool	shifted () const
	is shifted ?
bool	centered () const
	is centered ?
virtual double	operator() (double x) const
	Compute value.
virtual const Point2dd &	support () const
	Get the inferior and superior boundaries of the function support (i.e.

Protected Member Functions
size_t	index (double x) const
bool	is_valid (size_t index) const
void	setArray (unsigned nder, size_t length)
Protected Member Functions inherited from aims::BSpline
double	dO () const
virtual void	setSupport ()

Protected Attributes
std::vector< std::vector< double > >	_values
double	_tablescale
double	_tableoffset
Protected Attributes inherited from aims::BSpline
unsigned	_order
float	_scale
bool	_shift
Point2dd	_support

Detailed Description

Pre-computed B-Spline values In the "order 0" case, the array is not used (the analytical expression is too simple)

See BSpline for information on values computation

Definition at line 251 of file bspline.h.

Constructor & Destructor Documentation

TabulBSpline() [1/2]

aims::TabulBSpline::TabulBSpline	(	unsigned	order = 3,
		unsigned	nder = 1,
		float	scale = 1.,
		bool	shifted = false,
		size_t	length = std::numeric_limits< unsigned short >::max() - 1 )

References length(), std::numeric_limits< typename _Tp >::max(), nder(), aims::BSpline::order(), aims::BSpline::scale(), and aims::BSpline::shifted().

Referenced by operator=(), and TabulBSpline().

TabulBSpline() [2/2]

aims::TabulBSpline::TabulBSpline

(

const TabulBSpline &

other

)

References TabulBSpline().

~TabulBSpline()

virtual aims::TabulBSpline::~TabulBSpline ( )

virtual

Member Function Documentation

at()

virtual double aims::TabulBSpline::at ( double x ) const

virtual

Get valuespline value at point x.

Reimplemented from aims::BSpline.

derivative()

virtual double aims::TabulBSpline::derivative ( double x, unsigned n = 1 ) const

virtual

n-th derivative of the spline at point x

Reimplemented from aims::BSpline.

index()

size_t aims::TabulBSpline::index ( double x ) const

protected

Referenced by is_valid().

is_valid()

bool aims::TabulBSpline::is_valid ( size_t index ) const

protected

References index().

length()

virtual size_t aims::TabulBSpline::length ( ) const

virtual

array length

Referenced by reset(), setArray(), setLength(), and TabulBSpline().

nder()

virtual unsigned aims::TabulBSpline::nder ( ) const

virtual

Get parametersnumber of derivative stored.

Referenced by reset(), setArray(), setNbDer(), and TabulBSpline().

operator=()

TabulBSpline & aims::TabulBSpline::operator=

(

const TabulBSpline &

other

)

References TabulBSpline().

reset()

virtual void aims::TabulBSpline::reset ( unsigned order = 3, unsigned nder = 1, float scale = 1., bool shifted = false, size_t length = std::numeric_limits< unsigned short >::max() - 1 )

virtual

Set parameters Be aware that a call to reset, setOrder, setNbDer and setLength will trigger a reallocation of the array and a recomputing of the values.

If several of these values need changing, it is thus avdised to use the reset() method.

(Re)set all parameters

References length(), std::numeric_limits< typename _Tp >::max(), nder(), aims::BSpline::order(), aims::BSpline::scale(), and aims::BSpline::shifted().

setArray()

void aims::TabulBSpline::setArray ( unsigned nder, size_t length )

protected

References length(), and nder().

setLength()

virtual void aims::TabulBSpline::setLength ( size_t length )

virtual

array length

References length().

setNbDer()

virtual void aims::TabulBSpline::setNbDer ( unsigned nder )

virtual

number of derivative stored

References nder().

setOrder()

virtual void aims::TabulBSpline::setOrder ( unsigned order )

virtual

order

Reimplemented from aims::BSpline.

References aims::BSpline::order().

Member Data Documentation

_tableoffset

double aims::TabulBSpline::_tableoffset

protected

Definition at line 314 of file bspline.h.

_tablescale

double aims::TabulBSpline::_tablescale

protected

Definition at line 313 of file bspline.h.

_values

std::vector<std::vector<double> > aims::TabulBSpline::_values

protected

Definition at line 312 of file bspline.h.

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

• aims/math/bspline.h