#include <RooSpline1D.h>

Public Member Functions
TObject *	clone (const char *newname) const
	RooSpline1D (const char name, const char title, RooAbsReal &xvar, unsigned int npoints, const double xvals, const double yvals, const char *algo="CSPLINE")
	RooSpline1D ()
	RooSpline1D (const char name, const char title, RooAbsReal &xar, unsigned int npoints, const float xvals, const float yvals, const char *algo="CSPLINE")
	~RooSpline1D ()
Protected Member Functions
Double_t	evaluate () const
Private Member Functions
void	init () const
	not to be serialized
Private Attributes
ROOT::Math::Interpolator *	interp_
std::string	type_
std::vector< double >	x_
RooRealProxy	xvar_
std::vector< double >	y_

Detailed Description

Definition at line 18 of file RooSpline1D.h.

Constructor & Destructor Documentation

RooSpline1D::RooSpline1D ( ) [inline]

Definition at line 21 of file RooSpline1D.h.

Referenced by clone().

{}

RooSpline1D::RooSpline1D	(	const char *	name,
		const char *	title,
		RooAbsReal &	xvar,
		unsigned int	npoints,
		const double *	xvals,
		const double *	yvals,
		const char *	algo = `"CSPLINE"`
	)

Definition at line 5 of file RooSpline1D.cc.

References i, x_, and y_.

                                                                                                                                                                :
        RooAbsReal(name,title),
        xvar_("xvar","Variable", this, xvar), 
        x_(npoints), y_(npoints), type_(algo),
        interp_(0)
{ 
    for (unsigned int i = 0; i < npoints; ++i) {
        x_[i] = xvals[i];
        y_[i] = yvals[i];
    }
}

RooSpline1D::RooSpline1D	(	const char *	name,
		const char *	title,
		RooAbsReal &	xar,
		unsigned int	npoints,
		const float *	xvals,
		const float *	yvals,
		const char *	algo = `"CSPLINE"`
	)

Definition at line 17 of file RooSpline1D.cc.

References i, x_, and y_.

                                                                                                                                                              :
        RooAbsReal(name,title),
        xvar_("xvar","Variable", this, xvar), 
        x_(npoints), y_(npoints), type_(algo),
        interp_(0)
{ 
    for (unsigned int i = 0; i < npoints; ++i) {
        x_[i] = xvals[i];
        y_[i] = yvals[i];
    }
}

RooSpline1D::~RooSpline1D ( )

Definition at line 30 of file RooSpline1D.cc.

References interp_.

{
    delete interp_;
}

Member Function Documentation

TObject * RooSpline1D::clone ( const char * newname ) const

Definition at line 36 of file RooSpline1D.cc.

References RooSpline1D(), type_, x_, xvar_, and y_.

{
    return new RooSpline1D(newname, this->GetTitle(), const_cast<RooAbsReal &>(xvar_.arg()), x_.size(), &x_[0], &y_[0], type_.c_str());
}

Double_t RooSpline1D::evaluate ( ) const [protected]

Definition at line 52 of file RooSpline1D.cc.

References init(), interp_, and xvar_.

                                     {
    if (interp_ == 0) init();
    return interp_->Eval(xvar_);
}

void RooSpline1D::init ( void ) const [private]

not to be serialized

Definition at line 41 of file RooSpline1D.cc.

References interp_, type_, x_, and y_.

Referenced by evaluate().

                             {
    delete interp_;
    if      (type_ == "CSPLINE") interp_ = new ROOT::Math::Interpolator(x_, y_, ROOT::Math::Interpolation::kCSPLINE);
    else if (type_ == "LINEAR") interp_ = new ROOT::Math::Interpolator(x_, y_, ROOT::Math::Interpolation::kLINEAR);
    else if (type_ == "POLYNOMIAL") interp_ = new ROOT::Math::Interpolator(x_, y_, ROOT::Math::Interpolation::kPOLYNOMIAL);
    else if (type_ == "CSPLINE_PERIODIC") interp_ = new ROOT::Math::Interpolator(x_, y_, ROOT::Math::Interpolation::kCSPLINE_PERIODIC);
    else if (type_ == "AKIMA") interp_ = new ROOT::Math::Interpolator(x_, y_, ROOT::Math::Interpolation::kAKIMA);
    else if (type_ == "AKIMA_PERIODIC") interp_ = new ROOT::Math::Interpolator(x_, y_, ROOT::Math::Interpolation::kAKIMA_PERIODIC);
    else throw std::invalid_argument("Unknown interpolation type '"+type_+"'");
}