TRTCond::BasicRtRelation Class Reference

Default rt-relation class in the TRT: a 3rd degree polynomial. More...

#include <BasicRtRelation.h>

Inheritance diagram for TRTCond::BasicRtRelation:

Collaboration diagram for TRTCond::BasicRtRelation:

Public Types
enum	Status { Undefined , Calibrated }
	enumerates status More...

Public Member Functions
	BasicRtRelation ()
	constructor
	BasicRtRelation (const float *cal, Status stat=Calibrated)
	constructor
	BasicRtRelation (const std::vector< float > &cal, Status stat=Calibrated)
	constructor
	BasicRtRelation (const BasicRtRelation &rhs)
	constructor
virtual	~BasicRtRelation ()
	destructor
virtual RtRelation *	clone () const
	cloner
BasicRtRelation &	operator= (const BasicRtRelation &rhs)
	assignment operator
bool	operator== (const BasicRtRelation &rhs) const
	equality operator
virtual int	status () const
	status flag of (calibrated) rtrelation
virtual float	radius (float driftime) const
	radius for given drifttime
virtual float	drifttime (float radius) const
	drifttime for given radius
virtual float	drdt (float driftime) const
	driftvelocity for given drifttime
virtual size_t	footprint () const
	memory allocated by this rt-relation
virtual bool	isequal (const RtRelation &rhs) const
	equality operator
virtual std::ostream &	write (std::ostream &) const
	write to ascii ostream
virtual std::istream &	read (std::istream &)
	read from to ascii ostream
const float *	cal () const
	return to calibration constants
bool	operator== (const RtRelation &rhs) const

Private Member Functions
void	setstatus (int status)
	set the status
void	set (const float *cal)
	set the calibration constants

Private Attributes
unsigned char	m_status
	status byte
float	m_cal [4]
	calibration constants

Detailed Description

Default rt-relation class in the TRT: a 3rd degree polynomial.

Definition at line 25 of file BasicRtRelation.h.

Member Enumeration Documentation

Status

enum TRTCond::RtRelation::Status

inherited

enumerates status

Enumerator
Undefined
Calibrated

Definition at line 30 of file RtRelation.h.

{ Undefined, Calibrated } ;

Constructor & Destructor Documentation

BasicRtRelation() [1/4]

TRTCond::BasicRtRelation::BasicRtRelation ( )

inline

constructor

Definition at line 29 of file BasicRtRelation.h.

: m_status(Undefined) { m_cal[0] = m_cal[1] = m_cal[2] = m_cal[3] = 0 ; }

BasicRtRelation() [2/4]

TRTCond::BasicRtRelation::BasicRtRelation ( const float * cal, Status stat = Calibrated )

inline

constructor

Definition at line 31 of file BasicRtRelation.h.

      : m_status(stat) { set(cal) ; }

BasicRtRelation() [3/4]

TRTCond::BasicRtRelation::BasicRtRelation ( const std::vector< float > & cal, Status stat = Calibrated )

inline

constructor

Definition at line 34 of file BasicRtRelation.h.

      : m_status(stat) { set(&(cal.front())) ; }

BasicRtRelation() [4/4]

TRTCond::BasicRtRelation::BasicRtRelation ( const BasicRtRelation & rhs )

inline

constructor

Definition at line 37 of file BasicRtRelation.h.

: RtRelation(rhs) { *this = rhs ; }

~BasicRtRelation()

virtual TRTCond::BasicRtRelation::~BasicRtRelation ( )

inlinevirtual

destructor

Definition at line 39 of file BasicRtRelation.h.

{}

Member Function Documentation

cal()

const float * TRTCond::BasicRtRelation::cal ( ) const

inline

return to calibration constants

Definition at line 76 of file BasicRtRelation.h.

{ return m_cal ; }

clone()

virtual RtRelation * TRTCond::BasicRtRelation::clone ( ) const

inlinevirtual

cloner

Implements TRTCond::RtRelation.

Definition at line 41 of file BasicRtRelation.h.

{ return new BasicRtRelation(*this) ; }

drdt()

float TRTCond::BasicRtRelation::drdt ( float driftime ) const

virtual

driftvelocity for given drifttime

Implements TRTCond::RtRelation.

Definition at line 28 of file BasicRtRelation.cxx.

  { 
    return m_cal[1]+time*(2*m_cal[2]+time*3*m_cal[3]); 
  }

drifttime()

float TRTCond::BasicRtRelation::drifttime ( float radius ) const

virtual

drifttime for given radius

Implements TRTCond::RtRelation.

Definition at line 34 of file BasicRtRelation.cxx.

  {
    const double precision = 0.0001 ;
    double t = 20 ;
    double residual = std::fabs(r) - radius(t) ;
    const unsigned char maxtries = 10 ;
    unsigned char ntries = 0 ;
    while ( std::fabs(residual) > precision) {
      if ( drdt(t) == 0. ) t += 0.;
      else t += residual / drdt(t) ;
      residual = r - radius(t) ;
      if(++ntries>maxtries) {
    t=-1 ;
    break ;
      }
    }
    return t ;
  }

footprint()

virtual size_t TRTCond::BasicRtRelation::footprint ( ) const

inlinevirtual

memory allocated by this rt-relation

Reimplemented from TRTCond::RtRelation.

Definition at line 64 of file BasicRtRelation.h.

{ return sizeof(*this) ; }

isequal()

bool TRTCond::BasicRtRelation::isequal ( const RtRelation & rhs ) const

virtual

equality operator

Implements TRTCond::RtRelation.

Definition at line 54 of file BasicRtRelation.cxx.

  {
    const BasicRtRelation* rhsp = dynamic_cast<const BasicRtRelation*>(&rhs) ;
    return rhsp && (*rhsp)==*this ;
  }

operator=()

BasicRtRelation & TRTCond::BasicRtRelation::operator=

(

const BasicRtRelation &

rhs

)

assignment operator

Definition at line 10 of file BasicRtRelation.cxx.

 {
 
    if ( this != &rhs){
        m_status = rhs.m_status ;
        set(rhs.m_cal) ;
    }
    return *this ;
  }

operator==() [1/2]

bool TRTCond::BasicRtRelation::operator== ( const BasicRtRelation & rhs ) const

inline

equality operator

Definition at line 47 of file BasicRtRelation.h.

                                                      { 
      return (&rhs == this) || memcmp( m_cal, rhs.m_cal, 4*sizeof(float) )==0 ;  
    }

operator==() [2/2]

bool TRTCond::RtRelation::operator== ( const RtRelation & rhs ) const

inlineinherited

Definition at line 54 of file RtRelation.h.

{ return isequal(rhs) ; }

radius()

float TRTCond::BasicRtRelation::radius ( float driftime ) const

virtual

radius for given drifttime

Implements TRTCond::RtRelation.

Definition at line 21 of file BasicRtRelation.cxx.

  { 
    return m_cal[0]+time*(m_cal[1]+time*(m_cal[2]+time*m_cal[3])); 
    //return r<0 ? 0 : (r>2 ? 2 : r ) ;
  }

read()

std::istream & TRTCond::BasicRtRelation::read ( std::istream & is )

virtual

read from to ascii ostream

Implements TRTCond::RtRelation.

Definition at line 67 of file BasicRtRelation.cxx.

  {
    return is >> m_cal[0] >> m_cal[1] >> m_cal[2] >> m_cal[3] ;
  }

set()

void TRTCond::BasicRtRelation::set ( const float * cal )

inlineprivate

set the calibration constants

Definition at line 83 of file BasicRtRelation.h.

{ memcpy(m_cal,cal,4*sizeof(float)) ; }

setstatus()

void TRTCond::BasicRtRelation::setstatus ( int status )

inlineprivate

set the status

Definition at line 80 of file BasicRtRelation.h.

{ m_status = status ; }

status()

virtual int TRTCond::BasicRtRelation::status ( ) const

inlinevirtual

status flag of (calibrated) rtrelation

Implements TRTCond::RtRelation.

Definition at line 52 of file BasicRtRelation.h.

{ return m_status ; }

write()

std::ostream & TRTCond::BasicRtRelation::write ( std::ostream & os ) const

virtual

write to ascii ostream

Implements TRTCond::RtRelation.

Definition at line 61 of file BasicRtRelation.cxx.

  {
    return os << m_cal[0] << " " << m_cal[1] << " " 
          << m_cal[2] << " " << m_cal[3] << " " ;
  }

Member Data Documentation

m_cal

float TRTCond::BasicRtRelation::m_cal[4]

private

calibration constants

Definition at line 87 of file BasicRtRelation.h.

m_status

unsigned char TRTCond::BasicRtRelation::m_status

private

status byte

Definition at line 86 of file BasicRtRelation.h.

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

• BasicRtRelation.h
• BasicRtRelation.cxx