TgcDigitJitterData Class Reference

#include <TgcDigitJitterData.h>

Inheritance diagram for TgcDigitJitterData:

Collaboration diagram for TgcDigitJitterData:

Classes
struct	JitterBin

Public Member Functions
	TgcDigitJitterData ()
	~TgcDigitJitterData ()=default
double	drawJitter (const Amg::Vector3D &localDir, CLHEP::HepRandomEngine *rndmEngine) const
void	cacheAngleInterval (const double minAngle, std::vector< double > &&timeProbs)
StatusCode	initialize ()
bool	msgLvl (const MSG::Level lvl) const
	Test the output level.
MsgStream &	msg () const
	The standard message stream.
MsgStream &	msg (const MSG::Level lvl) const
	The standard message stream.
void	setLevel (MSG::Level lvl)
	Change the current logging level.

Private Member Functions
void	initMessaging () const
	Initialize our message level and MessageSvc.

Private Attributes
std::vector< JitterBin >	m_bins {}
double	m_timeInterval {-1.}
double	m_angleInterval {-1.}
std::string	m_nm
	Message source name.
boost::thread_specific_ptr< MsgStream >	m_msg_tls
	MsgStream instance (a std::cout like with print-out levels)
std::atomic< IMessageSvc * >	m_imsg { nullptr }
	MessageSvc pointer.
std::atomic< MSG::Level >	m_lvl { MSG::NIL }
	Current logging level.
std::atomic_flag m_initialized	ATLAS_THREAD_SAFE = ATOMIC_FLAG_INIT
	Messaging initialized (initMessaging)

Detailed Description

Definition at line 24 of file TgcDigitJitterData.h.

Constructor & Destructor Documentation

TgcDigitJitterData()

TgcDigitJitterData::TgcDigitJitterData

(

)

Definition at line 11 of file TgcDigitJitterData.cxx.

                                      :
   AthMessaging{"TgcDigitJitterData"} {}

~TgcDigitJitterData()

TgcDigitJitterData::~TgcDigitJitterData ( )

default

Member Function Documentation

cacheAngleInterval()

void TgcDigitJitterData::cacheAngleInterval	(	const double	minAngle,
		std::vector< double > &&	timeProbs )

Definition at line 41 of file TgcDigitJitterData.cxx.

                                                                                                {
    m_bins.emplace_back(minAngle, std::move(timeProbs));
}

drawJitter()

double TgcDigitJitterData::drawJitter	(	const Amg::Vector3D &	localDir,
		CLHEP::HepRandomEngine *	rndmEngine ) const

Definition at line 14 of file TgcDigitJitterData.cxx.

                                                                              {
    const double injectionAngle = std::atan2(std::abs(localDir.z()), std::abs(localDir.x())) / Gaudi::Units::deg;
 
    const size_t ithAngle = std::min(static_cast<size_t>(injectionAngle / m_angleInterval), m_bins.size() - 1);
    const size_t jthAngle = std::min(ithAngle + 1, m_bins.size() -1);
    ATH_MSG_DEBUG("Direction "<<Amg::toString(localDir)<<", injection angle: "<<injectionAngle
                <<", bin i: "<<ithAngle<<", bin j: "<<jthAngle);
    const double wAngle = std::fmod(injectionAngle, m_angleInterval);
 
    double jitter{0.}, prob{1.}, probRef{0.};
    const std::vector<double>& ith_probs{m_bins[ithAngle].timeProbs};
    const std::vector<double>& jth_probs{m_bins[jthAngle].timeProbs};
    unsigned int trials{0};
    while (prob > probRef) {
        prob = CLHEP::RandFlat::shoot(rndmEngine, 0.0, 1.0);
        jitter = CLHEP::RandFlat::shoot(rndmEngine, 0.0, 1.0) * m_timeInterval;
        size_t ithJitter = static_cast<size_t>(jitter);
        // probability distribution calculated from weighted sum between
        // neighboring bins of angles
        probRef = (1. - wAngle) * (ithJitter < ith_probs.size() ? ith_probs[ithJitter] : 0.) +
                  wAngle * (ithJitter < jth_probs.size() ? jth_probs[ithJitter] : 0.);
        ATH_MSG_VERBOSE("Trial: "<<(++trials)<<" jitter: "<<jitter<<", prob: "<<prob
                      <<", probRef: "<<probRef);
    }
    return jitter;
}

initialize()

StatusCode TgcDigitJitterData::initialize

(

)

Definition at line 44 of file TgcDigitJitterData.cxx.

                                          {
    if (m_bins.empty()) {
        ATH_MSG_FATAL("No jitter bins were defined.");
        return StatusCode::FAILURE;
    }
    std::sort(m_bins.begin(), m_bins.end());
    for (size_t b = 0 ; b < m_bins.size() - 1; ++b) {
        m_bins[b].maxAngle = m_bins[b+1].minAngle;
        if (b == 0) {
          m_angleInterval = m_bins[b].maxAngle - m_bins[b].minAngle;
        } else if (std::abs(m_bins[b].maxAngle - m_bins[b].minAngle - m_angleInterval) >
                   std::numeric_limits<double>::epsilon()) {
            ATH_MSG_FATAL("The angular bin "<<b<<" ranging from "<<m_bins[b].minAngle
                      <<" to "<<m_bins[b].maxAngle<<" is outside of the fixed interval "
                      <<m_angleInterval<<". Only fixed bin size is supported");
            return StatusCode::FAILURE;
        }
        if (m_bins[b].timeProbs.empty()) {
          ATH_MSG_FATAL("The angular bin "<<b<<" has no probabilities associated.");
          return StatusCode::FAILURE;
        }
        m_timeInterval = std::max(m_timeInterval, -1. + m_bins[b].timeProbs.size());
    }
    return StatusCode::SUCCESS;
}

initMessaging()

void AthMessaging::initMessaging ( ) const

privateinherited

Initialize our message level and MessageSvc.

This method should only be called once.

Definition at line 39 of file AthMessaging.cxx.

{
  m_imsg = Athena::getMessageSvc();
  // If user did not set an explicit level, set a default
  if (m_lvl == MSG::NIL) {
    m_lvl = m_imsg ?
      static_cast<MSG::Level>( m_imsg.load()->outputLevel(m_nm) ) :
      MSG::INFO;
  }
}

msg() [1/2]

MsgStream & AthMessaging::msg ( ) const

inlineinherited

The standard message stream.

Returns a reference to the default message stream May not be invoked before sysInitialize() has been invoked.

Definition at line 163 of file AthMessaging.h.

{
  MsgStream* ms = m_msg_tls.get();
  if (!ms) {
    if (!m_initialized.test_and_set()) initMessaging();
    ms = new MsgStream(m_imsg,m_nm);
    m_msg_tls.reset( ms );
  }
 
  ms->setLevel (m_lvl);
  return *ms;
}

msg() [2/2]

MsgStream & AthMessaging::msg ( const MSG::Level lvl ) const

inlineinherited

The standard message stream.

Returns a reference to the default message stream May not be invoked before sysInitialize() has been invoked.

Definition at line 178 of file AthMessaging.h.

{ return msg() << lvl; }

msgLvl()

bool AthMessaging::msgLvl ( const MSG::Level lvl ) const

inlineinherited

Test the output level.

Parameters

lvl	The message level to test against

Returns

boolean Indicating if messages at given level will be printed

Return values

true	Messages at level "lvl" will be printed

Definition at line 151 of file AthMessaging.h.

{
  if (m_lvl <= lvl) {
    msg() << lvl;
    return true;
  } else {
    return false;
  }
}

setLevel()

void AthMessaging::setLevel ( MSG::Level lvl )

inherited

Change the current logging level.

Use this rather than msg().setLevel() for proper operation with MT.

Definition at line 28 of file AthMessaging.cxx.

{
  m_lvl = lvl;
}

Member Data Documentation

ATLAS_THREAD_SAFE

std::atomic_flag m_initialized AthMessaging::ATLAS_THREAD_SAFE = ATOMIC_FLAG_INIT

mutableprivateinherited

Messaging initialized (initMessaging)

Definition at line 141 of file AthMessaging.h.

m_angleInterval

double TgcDigitJitterData::m_angleInterval {-1.}

private

Definition at line 51 of file TgcDigitJitterData.h.

{-1.};

m_bins

std::vector<JitterBin> TgcDigitJitterData::m_bins {}

private

Definition at line 48 of file TgcDigitJitterData.h.

{};

m_imsg

std::atomic<IMessageSvc*> AthMessaging::m_imsg { nullptr }

mutableprivateinherited

MessageSvc pointer.

Definition at line 135 of file AthMessaging.h.

{ nullptr };

m_lvl

std::atomic<MSG::Level> AthMessaging::m_lvl { MSG::NIL }

mutableprivateinherited

Current logging level.

Definition at line 138 of file AthMessaging.h.

{ MSG::NIL };

m_msg_tls

boost::thread_specific_ptr<MsgStream> AthMessaging::m_msg_tls

mutableprivateinherited

MsgStream instance (a std::cout like with print-out levels)

Definition at line 132 of file AthMessaging.h.

m_nm

std::string AthMessaging::m_nm

privateinherited

Message source name.

Definition at line 129 of file AthMessaging.h.

m_timeInterval

double TgcDigitJitterData::m_timeInterval {-1.}

private

Definition at line 50 of file TgcDigitJitterData.h.

{-1.};

---

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

• TgcDigitJitterData.h
• TgcDigitJitterData.cxx