MuonCalib::RtSpline Class Reference

This class contains the implementation of an r(t) relationship parameterized as support points to a cubic spline. More...

#include <RtSpline.h>

Inheritance diagram for MuonCalib::RtSpline:

Collaboration diagram for MuonCalib::RtSpline:

Public Types
using	ParVec = std::vector<double>

Public Member Functions
	RtSpline (const ParVec &vec)
	initialization constructor,
virtual	~RtSpline ()
std::string	name () const override final
	get the class name
virtual double	radius (double t) const override final
	get the radius corresponding to the drift time t; 0 or 14.6 is returned if t is outside the range
virtual double	driftVelocity (double t) const override final
	get the drift velocity
virtual double	driftAcceleration (double t) const override final
	Returns the acceleration of the r-t relation.
virtual double	tLower () const override final
	get the lower drift-time bound
virtual double	tUpper () const override final
	get the upper drift-time bound
virtual double	tBinWidth () const override final
	Returns the step-size for the sampling.
virtual unsigned	nDoF () const override final
	Returns the number of degrees of freedom of the relation function.
virtual std::string	typeName () const override final
double	GetTmaxDiff () const
	return the difference in total dirft time between the two multilayers (ML1 - ML2)
bool	hasTmaxDiff () const
void	SetTmaxDiff (const double d)
	set the difference in total drift time betwene the two multilayers (ML1 - ML2)
double	getReducedTime (const double t) const
	map the in the interval [tLower;tUpper] onto the interval [-1.;1.
double	dReducedTimeDt () const
	CalibFunc (const ParVec &vec)
unsigned int	nPar () const
const ParVec &	parameters () const
double	par (unsigned int index) const

Static Protected Attributes
static constexpr double	s_tBinWidth = 1.e-3

Private Attributes
std::unique_ptr< TSpline3 >	m_sp3 {}
std::optional< double >	m_tmax_diff {std::nullopt}
ParVec	m_parameters {}

Detailed Description

This class contains the implementation of an r(t) relationship parameterized as support points to a cubic spline.

Author

Felix.nosp@m..Rau.nosp@m.scher.nosp@m.@cer.nosp@m.n.ch

Date

07.08.2007

Definition at line 34 of file RtSpline.h.

Member Typedef Documentation

ParVec

using MuonCalib::CalibFunc::ParVec = std::vector<double>

inherited

Definition at line 35 of file CalibFunc.h.

Constructor & Destructor Documentation

RtSpline()

MuonCalib::RtSpline::RtSpline ( const ParVec & vec )

explicit

initialization constructor,

2 * (size of ParVec) = number of points

ParVec[ 2n] = x coordinate of n_th support point ParVec[1 + 2n] = y coordinate of n_th support point

Definition at line 20 of file RtSpline.cxx.

                                        : 
        IRtRelation(vec) {
        // check for minimum number of parameters
        if (nPar() < 6) {
            THROW_EXCEPTION("Not enough parameters!" << std::endl<< "Minimum number of parameters is 6!");
        }
        // check if the number of parameters is even
        if ((nPar() % 2) != 0) {
            THROW_EXCEPTION("RtSpline::_init(): Odd number of parameters!");
        }
        // create spline
        std::vector<double> x(nPar() /2);
        std::vector<double> y(nPar() /2);
        for (unsigned int i = 0; i < nPar() / 2; i++) {
            x[i] = par(2 * i);
            y[i] = par(2 * i + 1);
        }
        m_sp3 = std::make_unique<TSpline3>("Rt Relation", x.data(), y.data(), nPar() / 2, "b2e2", 0, 0);
    }  // end RtSpline::_init

~RtSpline()

MuonCalib::RtSpline::~RtSpline ( )

virtualdefault

Member Function Documentation

CalibFunc()

MuonCalib::CalibFunc::CalibFunc ( const ParVec & vec )

inlineexplicitinherited

Definition at line 36 of file CalibFunc.h.

                                                  : 
                    m_parameters{vec} {}

dReducedTimeDt()

double MuonCalib::IRtRelation::dReducedTimeDt ( ) const

inlineinherited

Definition at line 53 of file IRtRelation.h.

                                      {
            return unitIntervalPrime(tLower(), tUpper());
        }

driftAcceleration()

double MuonCalib::RtSpline::driftAcceleration ( double t ) const

finaloverridevirtual

Returns the acceleration of the r-t relation.

Implements MuonCalib::IRtRelation.

Definition at line 54 of file RtSpline.cxx.

                                                     { 
        constexpr double h = 1.e-7;
        return (driftVelocity(t + h) - driftVelocity(t-h))/ (2.*h);
    }

driftVelocity()

double MuonCalib::RtSpline::driftVelocity ( double t ) const

finaloverridevirtual

get the drift velocity

Implements MuonCalib::IRtRelation.

Definition at line 53 of file RtSpline.cxx.

{ return m_sp3->Derivative(t); }

getReducedTime()

double MuonCalib::IRtRelation::getReducedTime ( const double t ) const

inlineinherited

map the in the interval [tLower;tUpper] onto the interval [-1.;1.

] where tLower is mapped to -1. & tUpper to 1.;

Definition at line 49 of file IRtRelation.h.

                                                     {
           return mapToUnitInterval(t, tLower(), tUpper());
        }

GetTmaxDiff()

double MuonCalib::IRtRelation::GetTmaxDiff ( ) const

inlineinherited

return the difference in total dirft time between the two multilayers (ML1 - ML2)

Definition at line 40 of file IRtRelation.h.

{ return m_tmax_diff.value_or(0.); }

hasTmaxDiff()

bool MuonCalib::IRtRelation::hasTmaxDiff ( ) const

inlineinherited

Definition at line 42 of file IRtRelation.h.

{ return m_tmax_diff.has_value(); }

name()

std::string MuonCalib::RtSpline::name ( ) const

inlinefinaloverridevirtual

get the class name

Implements MuonCalib::CalibFunc.

Definition at line 55 of file RtSpline.h.

nDoF()

unsigned MuonCalib::RtSpline::nDoF ( ) const

finaloverridevirtual

Returns the number of degrees of freedom of the relation function.

Implements MuonCalib::IRtRelation.

Definition at line 42 of file RtSpline.cxx.

                                  {
        return m_sp3->GetNp();
    }

nPar()

unsigned int MuonCalib::CalibFunc::nPar ( ) const

inlineinherited

Definition at line 39 of file CalibFunc.h.

{ return m_parameters.size(); }

par()

double MuonCalib::CalibFunc::par ( unsigned int index ) const

inlineinherited

Definition at line 41 of file CalibFunc.h.

                                                 {
                return index < nPar() ? m_parameters[index] : 0.;
            }

parameters()

const ParVec & MuonCalib::CalibFunc::parameters ( ) const

inlineinherited

Definition at line 40 of file CalibFunc.h.

{ return m_parameters; }

radius()

double MuonCalib::RtSpline::radius ( double t ) const

finaloverridevirtual

get the radius corresponding to the drift time t; 0 or 14.6 is returned if t is outside the range

Implements MuonCalib::IRtRelation.

Definition at line 45 of file RtSpline.cxx.

                                          {
        // check for t_min and t_max
        if (t > m_sp3->GetXmax()) return m_sp3->Eval(m_sp3->GetXmax());
        if (t < m_sp3->GetXmin()) return m_sp3->Eval(m_sp3->GetXmin());
        double r = m_sp3->Eval(t);
        return r >= 0 ? r : 0;
    }

SetTmaxDiff()

void MuonCalib::IRtRelation::SetTmaxDiff ( const double d )

inlineinherited

set the difference in total drift time betwene the two multilayers (ML1 - ML2)

Definition at line 45 of file IRtRelation.h.

{ m_tmax_diff = d; }

tBinWidth()

double MuonCalib::RtSpline::tBinWidth ( ) const

finaloverridevirtual

Returns the step-size for the sampling.

Implements MuonCalib::IRtRelation.

Definition at line 39 of file RtSpline.cxx.

                                     {
        return m_sp3->GetDelta();
    }

tLower()

double MuonCalib::RtSpline::tLower ( ) const

finaloverridevirtual

get the lower drift-time bound

Implements MuonCalib::IRtRelation.

Definition at line 58 of file RtSpline.cxx.

{ return par(0); }

tUpper()

double MuonCalib::RtSpline::tUpper ( ) const

finaloverridevirtual

get the upper drift-time bound

Implements MuonCalib::IRtRelation.

Definition at line 60 of file RtSpline.cxx.

{ return par(nPar() - 2); }

typeName()

virtual std::string MuonCalib::IRtRelation::typeName ( ) const

inlinefinaloverridevirtualinherited

Implements MuonCalib::CalibFunc.

Definition at line 23 of file IRtRelation.h.

{ return "IRtRelation"; }

Member Data Documentation

m_parameters

ParVec MuonCalib::CalibFunc::m_parameters {}

privateinherited

Definition at line 48 of file CalibFunc.h.

{};

m_sp3

std::unique_ptr<TSpline3> MuonCalib::RtSpline::m_sp3 {}

private

Definition at line 37 of file RtSpline.h.

{};

m_tmax_diff

std::optional<double> MuonCalib::IRtRelation::m_tmax_diff {std::nullopt}

privateinherited

Definition at line 58 of file IRtRelation.h.

{std::nullopt};

s_tBinWidth

double MuonCalib::IRtRelation::s_tBinWidth = 1.e-3

staticconstexprprotectedinherited

Definition at line 60 of file IRtRelation.h.

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

• RtSpline.h
• RtSpline.cxx