Genfun::GaudiMathImplementation::SplineBase Class Reference

#include <Splines.h>

Public Types
typedef std::vector< double >	Data1D
typedef std::vector< std::pair < double, double > >	Data2D
Public Member Functions
	SplineBase (const Data1D &x, const Data1D &y, const GaudiMath::Interpolation::Type type)
	constructor from vectors and type
	SplineBase (const Data2D &data, const GaudiMath::Interpolation::Type type)
	constructor from vector of (x,y(x)) pairs
template<class DATAX , class DATAY >
	SplineBase (const GaudiMath::Interpolation::Type type, DATAX begin_x, DATAX end_x, DATAY begin_y)
	templated constructor in the spirit of STL-algorithms
template<class DATA >
	SplineBase (const GaudiMath::Interpolation::Type type, DATA begin, DATA end)
	templated constructor from the sequence of (x,y(x)) pairs as sequence of pairs the class TabulatedProperty can be used
	SplineBase (const SplineBase &)
	copy constructor
virtual	~SplineBase ()
	destructor
double	eval (const double x) const
	evaluate the function
double	deriv (const double x) const
	evaluate the first derivative
double	deriv2 (const double x) const
	evaluate the second derivative
double	integ (const double a, const double b) const
	evaluate the integral on [a,b]
Protected Member Functions
void	initialize () const
Private Member Functions
	SplineBase ()
SplineBase &	operator= (const SplineBase &)
Private Attributes
bool	m_init
size_t	m_dim
double *	m_x
double *	m_y
gsl_spline *	m_spline
gsl_interp_accel *	m_accel
GaudiMath::Interpolation::Type	m_type

Detailed Description

Definition at line 36 of file Splines.h.

Member Typedef Documentation

typedef std::vector<double> Genfun::GaudiMathImplementation::SplineBase::Data1D

Definition at line 39 of file Splines.h.

typedef std::vector<std::pair<double,double> > Genfun::GaudiMathImplementation::SplineBase::Data2D

Definition at line 40 of file Splines.h.

Constructor & Destructor Documentation

Genfun::GaudiMathImplementation::SplineBase::SplineBase	(	const Data1D &	x,
		const Data1D &	y,
		const GaudiMath::Interpolation::Type	type
	)

constructor from vectors and type

Parameters:

	x	vector of x
	y	vector of y(x)
	type	interpolation type

Definition at line 32 of file Splines.cpp.

00035       : m_init      ( false    ) 
00036       , m_dim       ( x.size() )
00037       , m_x         ( new double[ x.size() ] )
00038       , m_y         ( new double[ y.size() ] ) 
00039       , m_spline    ( 0 ) 
00040       , m_accel     ( 0 ) 
00041       , m_type      ( type ) 
00042     {
00043       std::copy( x.begin() , x.end() , m_x ) ;
00044       std::copy( y.begin() , y.end() , m_y ) ; 
00045     }

Genfun::GaudiMathImplementation::SplineBase::SplineBase	(	const Data2D &	data,
		const GaudiMath::Interpolation::Type	type
	)

constructor from vector of (x,y(x)) pairs

Parameters:

	data	vector of (x,y(x)) pairs
	type	interpolaiton type

Definition at line 55 of file Splines.cpp.

00057       : m_init      ( false       ) 
00058       , m_dim       ( data.size() )
00059       , m_x         ( new double[ data.size() ] )
00060       , m_y         ( new double[ data.size() ] ) 
00061       , m_spline    ( 0    ) 
00062       , m_accel     ( 0    ) 
00063       , m_type      ( type ) 
00064     {
00065       double*  _x = m_x ;
00066       double*  _y = m_y ;      
00067       for( Data2D::const_iterator it =
00068              data.begin() ; data.end() != it ; ++it ) 
00069       {
00070         *_x = it -> first  ; ++_x ;
00071         *_y = it -> second ; ++_y ; 
00072       }
00073     }

template<class DATAX , class DATAY >

Genfun::GaudiMathImplementation::SplineBase::SplineBase	(	const GaudiMath::Interpolation::Type	type,
		DATAX	begin_x,
		DATAX	end_x,
		DATAY	begin_y
	)			`[inline]`

templated constructor in the spirit of STL-algorithms

Parameters:

	type	interpolation type
	begin_x	begin of X-sequence
	end_x	end of X-sequence
	begin_Y	begin of Y-sequence

Definition at line 66 of file Splines.h.

00070         : m_init      ( false           )
00071         , m_dim       ( end_x - begin_x )
00072         , m_x         ( new double[ end_x - begin_x ] )
00073         , m_y         ( new double[ end_x - begin_x ] )
00074         , m_spline    ( 0    )
00075         , m_accel     ( 0    )
00076         , m_type      ( type )
00077       {
00078         std::copy ( begin_x , end_x                         , m_x ) ;
00079         std::copy ( begin_y , begin_y + ( end_x - begin_x ) , m_y ) ;
00080       }

template<class DATA >

Genfun::GaudiMathImplementation::SplineBase::SplineBase	(	const GaudiMath::Interpolation::Type	type,
		DATA	begin,
		DATA	end
	)			`[inline]`

templated constructor from the sequence of (x,y(x)) pairs as sequence of pairs the class TabulatedProperty can be used

Parameters:

	type	interpolation type
	begin	begin of sequence of (x,y(x)) pairs
	end	end of sequence of (x,y(x)) pairs

Definition at line 90 of file Splines.h.

00093         : m_init      ( false        )
00094         , m_dim       ( end - begin  )
00095         , m_x         ( new double[ end - begin ] )
00096         , m_y         ( new double[ end - begin ] )
00097         , m_spline    ( 0    )
00098         , m_accel     ( 0    )
00099         , m_type      ( type )
00100       {
00101         double* _x = m_x ;
00102         double* _y = m_y ;
00103         for ( DATA it = begin ; end != it ; ++ it )
00104         {
00105           *_x = it -> first  ; ++_x ;
00106           *_y = it -> second ; ++_y ;
00107         };
00108       }

Genfun::GaudiMathImplementation::SplineBase::SplineBase ( const SplineBase & right )

copy constructor

Definition at line 79 of file Splines.cpp.

00080       : m_init      ( false       ) 
00081       , m_dim       ( right.m_dim ) 
00082       , m_x         ( new double[ right.m_dim ] )
00083       , m_y         ( new double[ right.m_dim ] ) 
00084       , m_spline    ( 0            ) 
00085       , m_accel     ( 0            ) 
00086       , m_type      ( right.m_type ) 
00087     {
00088       std::copy( right.m_x , right.m_x + right.m_dim , m_x ) ;
00089       std::copy( right.m_y , right.m_y + right.m_dim , m_y ) ;
00090     }

Genfun::GaudiMathImplementation::SplineBase::~SplineBase ( ) [virtual]

destructor

Definition at line 96 of file Splines.cpp.

00097     {
00098       if ( 0 != m_spline ) { gsl_spline_free       ( m_spline ) ; }      
00099       if ( 0 != m_accel  ) { gsl_interp_accel_free ( m_accel  ) ; }
00100       
00101       if ( 0 != m_x      ) { delete[] m_x      ; }
00102       if ( 0 != m_y      ) { delete[] m_y      ; }
00103     }

Genfun::GaudiMathImplementation::SplineBase::SplineBase ( ) [private]

Member Function Documentation

double Genfun::GaudiMathImplementation::SplineBase::deriv ( const double x ) const

evaluate the first derivative

Definition at line 151 of file Splines.cpp.

00152     {
00153       if ( !m_init ) { initialize() ; }
00154       return gsl_spline_eval_deriv  ( m_spline , x , m_accel ); 
00155     }

double Genfun::GaudiMathImplementation::SplineBase::deriv2 ( const double x ) const

evaluate the second derivative

Definition at line 159 of file Splines.cpp.

00160     {
00161       if ( !m_init ) { initialize() ; }
00162       return gsl_spline_eval_deriv2 ( m_spline , x , m_accel ); 
00163     }

double Genfun::GaudiMathImplementation::SplineBase::eval ( const double x ) const

evaluate the function

Definition at line 143 of file Splines.cpp.

00144     {
00145       if ( !m_init ) { initialize() ; }
00146       return gsl_spline_eval ( m_spline , x , m_accel );
00147     }

void Genfun::GaudiMathImplementation::SplineBase::initialize ( ) const [protected]

Definition at line 107 of file Splines.cpp.

00109 00110 00111 00112 00113 00114       { 00115 00116 00117 00118 00119 00120 00121 00122 00123 00124 00125 00126 00127 00128 00129       }; 00130 00131 00132 00133 00134 00135 00136 00137 00138 00139     }

class="fragment">00108 { if ( m_init ) { return ; } // RETURN const gsl_interp_type* T = 0 ; switch ( m_type ) case GaudiMath::Interpolation::Linear : T = gsl_interp_linear ; break ; case GaudiMath::Interpolation::Polynomial : T = gsl_interp_polynomial ; break ; case GaudiMath::Interpolation::Cspline : T = gsl_interp_cspline ; break ; case GaudiMath::Interpolation::Cspline_Periodic : T = gsl_interp_cspline_periodic ; break ; case GaudiMath::Interpolation::Akima : T = gsl_interp_akima ; break ; case GaudiMath::Interpolation::Akima_Periodic : T = gsl_interp_akima_periodic ; break ; default : T = gsl_interp_cspline ; break ; m_spline = gsl_spline_alloc( T , m_dim ) ; gsl_spline_init( m_spline , m_x , m_y , m_dim ) ; m_accel = gsl_interp_accel_alloc() ; m_init = true ;

double Genfun::GaudiMathImplementation::SplineBase::integ	(	const double	a,
		const double	b
	)			const

evaluate the integral on [a,b]

Definition at line 167 of file Splines.cpp.

00169     {
00170       if ( !m_init ) { initialize() ; }
00171       return gsl_spline_eval_integ ( m_spline , a , b , m_accel ) ; 
00172     }

SplineBase& Genfun::GaudiMathImplementation::SplineBase::operator= ( const SplineBase & ) [private]

Member Data Documentation

gsl_interp_accel* Genfun::GaudiMathImplementation::SplineBase::m_accel [mutable, private]

Definition at line 136 of file Splines.h.

size_t Genfun::GaudiMathImplementation::SplineBase::m_dim [private]

Definition at line 132 of file Splines.h.

bool Genfun::GaudiMathImplementation::SplineBase::m_init [mutable, private]

Definition at line 131 of file Splines.h.

gsl_spline* Genfun::GaudiMathImplementation::SplineBase::m_spline [mutable, private]

Definition at line 135 of file Splines.h.

GaudiMath::Interpolation::Type Genfun::GaudiMathImplementation::SplineBase::m_type [private]

Definition at line 137 of file Splines.h.

double* Genfun::GaudiMathImplementation::SplineBase::m_x [private]

Definition at line 133 of file Splines.h.

double* Genfun::GaudiMathImplementation::SplineBase::m_y [private]

Definition at line 134 of file Splines.h.

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

/afs/cern.ch/sw/Gaudi/releases/GAUDI/GAUDI_v22r0/GaudiGSL/GaudiMath/Splines.h
/afs/cern.ch/sw/Gaudi/releases/GAUDI/GAUDI_v22r0/GaudiGSL/src/Lib/Splines.cpp

Gaudi Framework, version v22r0

Genfun::GaudiMathImplementation::SplineBase Class Reference

Public Types

Public Member Functions

Protected Member Functions

Private Member Functions

Private Attributes

Detailed Description

Member Typedef Documentation

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation