InDet::TRT_TrackSegmentsMaker_BarrelCosmics Class Reference

AlgTool that creates TrackSegments out of TRT Driftcircles for barrel TRT only, specializing for cosmic runs (to be used for LVL2 trigger) More...

#include <TRT_TrackSegmentsMaker_BarrelCosmics.h>

Inheritance diagram for InDet::TRT_TrackSegmentsMaker_BarrelCosmics:

Collaboration diagram for InDet::TRT_TrackSegmentsMaker_BarrelCosmics:

Classes
class	EventData

Public Member Functions
	TRT_TrackSegmentsMaker_BarrelCosmics (const std::string &, const std::string &, const IInterface *)
virtual	~TRT_TrackSegmentsMaker_BarrelCosmics ()
virtual StatusCode	initialize () override
virtual StatusCode	finalize () override
virtual std::unique_ptr< InDet::ITRT_TrackSegmentsMaker::IEventData >	newEvent (const EventContext &ctx) const override
virtual std::unique_ptr< InDet::ITRT_TrackSegmentsMaker::IEventData >	newRegion (const EventContext &ctx, const std::vector< IdentifierHash > &) const override
void	endEvent (InDet::ITRT_TrackSegmentsMaker::IEventData &event_data) const override
virtual void	find (const EventContext &ctx, InDet::ITRT_TrackSegmentsMaker::IEventData &event_data, InDet::TRT_DetElementLink_xk::TRT_DetElemUsedMap &used) const override
virtual Trk::TrackSegment *	next (InDet::ITRT_TrackSegmentsMaker::IEventData &event_data) const override
virtual MsgStream &	dump (MsgStream &out) const override
virtual std::ostream &	dump (std::ostream &out) const override
ServiceHandle< StoreGateSvc > &	evtStore ()
	The standard StoreGateSvc (event store) Returns (kind of) a pointer to the StoreGateSvc.
const ServiceHandle< StoreGateSvc > &	detStore () const
	The standard StoreGateSvc/DetectorStore Returns (kind of) a pointer to the StoreGateSvc.
virtual StatusCode	sysInitialize () override
	Perform system initialization for an algorithm.
virtual StatusCode	sysStart () override
	Handle START transition.
virtual std::vector< Gaudi::DataHandle * >	inputHandles () const override
	Return this algorithm's input handles.
virtual std::vector< Gaudi::DataHandle * >	outputHandles () const override
	Return this algorithm's output handles.
Gaudi::Details::PropertyBase &	declareProperty (Gaudi::Property< T, V, H > &t)
void	updateVHKA (Gaudi::Details::PropertyBase &)
MsgStream &	msg () const
bool	msgLvl (const MSG::Level lvl) const

Static Public Member Functions
static const InterfaceID &	interfaceID ()

Protected Member Functions
void	renounceArray (SG::VarHandleKeyArray &handlesArray)
	remove all handles from I/O resolution
std::enable_if_t< std::is_void_v< std::result_of_t< decltype(&T::renounce)(T)> > &&!std::is_base_of_v< SG::VarHandleKeyArray, T > &&std::is_base_of_v< Gaudi::DataHandle, T >, void >	renounce (T &h)
void	extraDeps_update_handler (Gaudi::Details::PropertyBase &ExtraDeps)
	Add StoreName to extra input/output deps as needed.

Protected Attributes
SG::ReadHandleKey< InDet::TRT_DriftCircleContainer >	m_driftCirclesName {this,"TRT_ClustersContainer","TRT_DriftCircles","RHK to retrieve Drift Circles"}
	Container with TRT clusters.
StringProperty	m_TRTManagerName
const TRT_ID *	m_trtid {nullptr}

Private Types
typedef ServiceHandle< StoreGateSvc >	StoreGateSvc_t

Private Member Functions
int	findSeed (double xmin, double xmax, double phimin, double phimax, double *bestParameters, TRT_TrackSegmentsMaker_BarrelCosmics::EventData &event_data) const
void	findSeedInverseR (double *par, TRT_TrackSegmentsMaker_BarrelCosmics::EventData &event_data) const
void	convert (std::vector< const InDet::TRT_DriftCircle * > &hits, double *trackpar, TRT_TrackSegmentsMaker_BarrelCosmics::EventData &event_data) const
void	findOld (TRT_TrackSegmentsMaker_BarrelCosmics::EventData &event_data) const
Gaudi::Details::PropertyBase &	declareGaudiProperty (Gaudi::Property< T, V, H > &hndl, const SG::VarHandleKeyType &)
	specialization for handling Gaudi::Property<SG::VarHandleKey>

Static Private Member Functions
static void	linearRegressionParabolaFit (double *mean, double *a)
static bool	sortHits (const InDet::TRT_DriftCircle *, const InDet::TRT_DriftCircle *)
	sort hits on segment such that they are ordered from larger y to smaller (from top down)
static void	segFit (double *measx, double *measy, int nhits, double *residuals=0, double *result=0)

Private Attributes
IntegerProperty	m_maxTotalHits {this, "MaxTotalNumberOfBarrelHits", 21000}
IntegerProperty	m_minHitsForSeed {this, "MinNumberOfHitsForSeed", -1}
IntegerProperty	m_minHitsForSegment {this, "MinimalNumberOfTRTHits", 20}
IntegerProperty	m_minHitsAboveTOT {this, "MinNumberOfHitsAboveTOT", -1}
IntegerProperty	m_nBinsInX {this, "NbinsInX", 100}
IntegerProperty	m_nBinsInPhi {this, "NbinsInPhi", 10}
DoubleProperty	m_minSeedTOT
BooleanProperty	m_magneticField
BooleanProperty	m_mergeSegments {this, "MergeSegments", false}
StoreGateSvc_t	m_evtStore
	Pointer to StoreGate (event store by default)
StoreGateSvc_t	m_detStore
	Pointer to StoreGate (detector store by default)
std::vector< SG::VarHandleKeyArray * >	m_vhka
bool	m_varHandleArraysDeclared

Detailed Description

AlgTool that creates TrackSegments out of TRT Driftcircles for barrel TRT only, specializing for cosmic runs (to be used for LVL2 trigger)

Author

Sasa..nosp@m.Frat.nosp@m.ina@c.nosp@m.ern..nosp@m.ch

Definition at line 42 of file TRT_TrackSegmentsMaker_BarrelCosmics.h.

Member Typedef Documentation

StoreGateSvc_t

typedef ServiceHandle<StoreGateSvc> AthCommonDataStore< AthCommonMsg< AlgTool > >::StoreGateSvc_t

privateinherited

Definition at line 388 of file AthCommonDataStore.h.

Constructor & Destructor Documentation

TRT_TrackSegmentsMaker_BarrelCosmics()

InDet::TRT_TrackSegmentsMaker_BarrelCosmics::TRT_TrackSegmentsMaker_BarrelCosmics	(	const std::string &	t,
		const std::string &	n,
		const IInterface *	p )

Definition at line 23 of file TRT_TrackSegmentsMaker_BarrelCosmics.cxx.

  : AthAlgTool(t,n,p)
{
  declareInterface<ITRT_TrackSegmentsMaker>(this);
}

~TRT_TrackSegmentsMaker_BarrelCosmics()

virtual InDet::TRT_TrackSegmentsMaker_BarrelCosmics::~TRT_TrackSegmentsMaker_BarrelCosmics ( )

inlinevirtual

Definition at line 47 of file TRT_TrackSegmentsMaker_BarrelCosmics.h.

{};

Member Function Documentation

convert()

void InDet::TRT_TrackSegmentsMaker_BarrelCosmics::convert ( std::vector< const InDet::TRT_DriftCircle * > & hits, double * trackpar, TRT_TrackSegmentsMaker_BarrelCosmics::EventData & event_data ) const

private

Definition at line 531 of file TRT_TrackSegmentsMaker_BarrelCosmics.cxx.

                                                                                                                           {
//Track Segment production - based on TRT_TrackSegmentsMaker_ECcosmics Tool
 
  ATH_MSG_DEBUG("InDet::TRT_TrackSegmentsMaker_BarrelCosmics::convert() segment " << event_data.m_segments.size()
                << ", N hits = " << hits.size());
 
  if (hits.size()<5) { msg(MSG::ERROR) << "convert(): empty list of hits! size: " << hits.size() << endmsg; return; }
 
  // sort the vector of hits
  std::sort( hits.begin(), hits.end(), InDet::TRT_TrackSegmentsMaker_BarrelCosmics::sortHits );
 
  // remove hits from the opposite side
  int countOppositeSide(0);
  for (std::vector<const InDet::TRT_DriftCircle *>::iterator it = hits.begin(); it != hits.end(); ) {
    int side = m_trtid->barrel_ec( (*it)->identify() );
    int previous = ( it == hits.begin() ) ? m_trtid->barrel_ec( (*(it+2))->identify() ) : m_trtid->barrel_ec( (*(it-1))->identify() );
    int next = ( it == hits.end()-1 ) ? m_trtid->barrel_ec( (*(it-2))->identify() ) : m_trtid->barrel_ec( (*(it+1))->identify() );
    if ( previous==next && side*next==-1 ) { it = hits.erase( it ); countOppositeSide++; }
    else { ++it; }
  }
  if (countOppositeSide>5) {
     ATH_MSG_DEBUG( "convert(): removed " << countOppositeSide << " hits from the other side, N remaining hits: " << hits.size() );
  }
  if (hits.size()<5) {
     ATH_MSG_WARNING( "convert(): not enough hits after opposite side removal: " << hits.size() << ", removed: "
                      << countOppositeSide );
    return;
  }
 
  // make the linear regression fit
  double mean[10]; for (double & i : mean) i = 0.;
  for (auto & hit : hits) {
 
    mean[0] += (hit->detectorElement())->surface(hit->identify()).center().x();
    mean[1] += (hit->detectorElement())->surface(hit->identify()).center().y();
  }
  for (int i=0; i<2; i++) mean[i] /= (double) hits.size();
  int iPivot(-1); double yPivot(10000000.); // choose pivot closest to the mean
  for (unsigned int i=0; i<hits.size(); i++) {
    double x = (hits[i]->detectorElement())->surface(hits[i]->identify()).center().x() - mean[0];
    double y = (hits[i]->detectorElement())->surface(hits[i]->identify()).center().y() - mean[1];
    double x2 = x * x;
    double y2 = y * y;
    mean[2] += x * y;
    mean[3] += x2;
    mean[4] += y2;
    mean[5] += x2 * y;
    mean[6] += y2 * x;
    mean[7] += x2 * x;
    mean[8] += y2 * y;
    mean[9] += y2 * y2;
    if (x2+y2<yPivot) { yPivot = x2+y2; iPivot = i; }
  }
 
  if (iPivot==-1) {
    msg(MSG::ERROR) << "SF pivot index not found!!! " << yPivot << " " << iPivot << endmsg;
    iPivot = 0;
  }
 
  double cotanPhi = mean[2] / mean[4];
  double phi = std::atan(1./cotanPhi); if (phi<0.) phi += M_PI;
  ATH_MSG_DEBUG("compare parameters X  : " << trackpar[0] << " vs. " << mean[0]-mean[1]*cotanPhi );
  ATH_MSG_DEBUG("compare parameters phi: " << trackpar[1] << " vs. " << phi );
 
  double qOverp = 0.; // units q / MeV, set only if there is magnetic field
 
  if (m_magneticField) { // fit parabola instead of line, add circle if neccessary
 
    double A[6], discriminant, a[3];
 
    A[0] = mean[8]*mean[8]-mean[4]*mean[9];                    // parabola fit
    A[1] = mean[1]*mean[9]-mean[4]*mean[8];
    A[2] = mean[4]*mean[4]-mean[1]*mean[8];
    A[3] = mean[4]*mean[4]-mean[9];
    A[4] = mean[8]-mean[1]*mean[4];
    A[5] = mean[1]*mean[1]-mean[4];
    discriminant = std::abs( std::pow(mean[4], 3) + mean[8]*mean[8] + mean[1]*mean[1]*mean[9] - mean[4]*(2.*mean[1]*mean[8]+mean[9]) );
 
    a[0] = A[0] * mean[0] + A[1] * mean[2] + A[2] * mean[6];
    a[1] = A[1] * mean[0] + A[3] * mean[2] + A[4] * mean[6];
    a[2] = A[2] * mean[0] + A[4] * mean[2] + A[5] * mean[6];
    discriminant *= -1.;
    for (double & i : a) { i /= discriminant; }
 
    double Xparabola = a[0];
    double cotanParabola = a[1];
    double inverseSin3phi = 1. + a[1]*a[1]; inverseSin3phi *= std::sqrt(inverseSin3phi); // 1/sin^3phi
    double inverseR = 2. * a[2] / inverseSin3phi;
 
    if (msgLvl(MSG::DEBUG)) {
       msg(MSG::DEBUG) << "TRT_TrackSegmentsMaker_BarrelCosmics: parabola fit, X: " << Xparabola << endmsg;
       msg(MSG::DEBUG) << "                                      parabola fit, cotan: " << cotanParabola << " compare to " << cotanPhi << endmsg;
       msg(MSG::DEBUG) << "                                      parabola fit, 1/R: " << inverseR << "/ mm " << endmsg;
    }
 
    qOverp = inverseR / 0.6;  // [1/MeV]; 1 / (eBRC) = 1 / (e 2T 3 100 M m/s mm) / R[mm] = (1/R[mm]) / 0.6
  }
 
// errors from the fit:
// - for d: sigma_r / sqrt(N hits) -> sigma_d^2 =
// - for cotanPhi: sigma_r / (sqrt(N hits * <y^2>) * sinPhi)
// - for phi: 1 / (1 + cotanPhi^2) * DcotanPhi // note that this mthod gives a biased estimate for phi!
 
  Amg::MatrixX cov(5,5);
 
  double f33 = 4. / ( 3. * (1.+cotanPhi*cotanPhi) * mean[4] ); // see above, mean[4] = N hits * <y^2>
  cov<<
    4.  ,    0.,   0.,     0.,  0.,
    0.  ,45633.,   0.,     0.,  0.,
    0.  ,    0.,  f33,     0.,  0.,
    0.  ,    0.,   0.,    0.2,  0.,
    0.  ,    0.,   0.,     0.,   1.;
 
  Amg::Vector3D hepVec( mean[0], mean[1],
             (hits[iPivot]->detectorElement())->surface(hits[iPivot]->identify()).center().z() );
 
 
  Amg::Transform3D htrans = Amg::Transform3D(Amg::Translation3D(hepVec)*Amg::RotationMatrix3D::Identity());
 
 
 
  Trk::StraightLineSurface *sur = new Trk::StraightLineSurface(htrans);
 
  if (phi>0.) phi -= M_PI;
  if (phi<-M_PI || phi>0.) msg(MSG::ERROR) << "phi value problem: " << phi << endmsg;
 
  Trk::LocalParameters par(0., 0., phi, M_PI_2, qOverp);
 
  ATH_MSG_DEBUG("pivot: " << sur->center() << ", cross-check: " << mean[0] << " " << mean[1] );
 
  // calculate TrackParameters so that one can calculate input for TRT_DriftCircleOnTrack
  // Global direction of the track parameters
  Amg::Vector3D dir(std::cos(phi), std::sin(phi), 0.);
 
  auto rio = DataVector<const Trk::MeasurementBase>{};
 
  for (const auto *DC : hits) { // rewrite: InDet::TRT_DriftCircle -> InDet::TRT_DriftCircleOnTrack
  // based on http://atlas-sw.cern.ch/cgi-bin/viewcvs-atlas.cgi/offline/InnerDetector/InDetRecTools/TRT_DriftCircleOnTrackTool/src/TRT_DriftCircleOnTrackNoDriftTimeTool.cxx?revision=1.11&view=markup
 
    // Straw identification
    const InDetDD::TRT_BaseElement* pE = DC->detectorElement();
    if (!pE) {
      ATH_MSG_ERROR("convert(): no detectorElement info!");
      continue;
    }
    Identifier iD = DC->identify();
    IdentifierHash iH = m_trtid->straw_layer_hash(m_trtid->layer_id(iD));
 
    // TRT_DriftCircleOnTrack production
    Trk::DefinedParameter  radius(0.,Trk::locX);
    Trk::LocalParameters lp(radius);
    Amg::MatrixX cov(1,1); cov<<1.33333;
    const InDet::TRT_DriftCircleOnTrack *element = new InDet::TRT_DriftCircleOnTrack(DC, std::move(lp), std::move(cov),
                                                                                     iH, 1., dir, Trk::NODRIFTTIME);
    rio.push_back( dynamic_cast<const Trk::MeasurementBase *>(element) );
  } // end fill rio
 
  // add pseudo measurement - follow up https://savannah.cern.ch/bugs/?41079
if (1) { // limit the scope of all these variables
 
  Trk::DefinedParameter pseudoz( 0., Trk::locZ);
  Trk::DefinedParameter pseudotheta( M_PI/2., Trk::theta);
  Trk::LocalParameters pseudoPar( pseudoz, pseudotheta );
 
  Amg::MatrixX pseudocov(2,2);
  pseudocov <<
    1.  ,   0.,
    0.  , .001;
 
  const Trk::Surface &surf =  (hits[hits.size()-1]->detectorElement())->surface(hits[hits.size()-1]->identify());
 
  Amg::RotationMatrix3D linerot=surf.transform().rotation();
  Amg::Vector3D         firstcenter=surf.center();
  Amg::Vector3D         faketransl(firstcenter.x(),firstcenter.y()-5.,firstcenter.z());
  Amg::Transform3D     faketransf = Amg::Transform3D(linerot* Amg::Translation3D(faketransl));
  Trk::StraightLineSurface *pseudoSurface = new Trk::StraightLineSurface( faketransf, 99999., 99999. );
 
  Trk::PseudoMeasurementOnTrack *pseudo = new Trk::PseudoMeasurementOnTrack(
    std::move(pseudoPar),
    std::move(pseudocov),
    *pseudoSurface );
  rio.push_back( pseudo );
  delete pseudoSurface;
}
 
  double chi2 = mean[3] - 2.*cotanPhi*mean[2] + mean[4]*cotanPhi*cotanPhi;
  chi2 /= ( 1. + cotanPhi*cotanPhi );
  int ndf = (int) hits.size() - 2;
  ATH_MSG_DEBUG( "Chi2 = " << chi2 << ", ndf = " << ndf << ", chi2/ndf = " << chi2/ndf );
  Trk::FitQuality      * fqu = new Trk::FitQuality(chi2, ndf);
 
  Trk::TrackSegment* segment = new Trk::TrackSegment(
    std::move(par),  std::move(cov), sur, std::move(rio), fqu, Trk::Segment::TRT_SegmentMaker);
 
  //add segment to list of segments
  ATH_MSG_DEBUG( "Add " << event_data.m_segments.size() << "th segment to list" );
  event_data.m_segments.push_back(segment);
}

declareGaudiProperty()

Gaudi::Details::PropertyBase & AthCommonDataStore< AthCommonMsg< AlgTool > >::declareGaudiProperty ( Gaudi::Property< T, V, H > & hndl, const SG::VarHandleKeyType &  )

inlineprivateinherited

specialization for handling Gaudi::Property<SG::VarHandleKey>

Definition at line 156 of file AthCommonDataStore.h.

  {
    return *AthCommonDataStore<PBASE>::declareProperty(hndl.name(),
                                                       hndl.value(), 
                                                       hndl.documentation());
 
  }

declareProperty()

Gaudi::Details::PropertyBase & AthCommonDataStore< AthCommonMsg< AlgTool > >::declareProperty ( Gaudi::Property< T, V, H > & t )

inlineinherited

Definition at line 145 of file AthCommonDataStore.h.

                                                                     {
    typedef typename SG::HandleClassifier<T>::type htype;
    return AthCommonDataStore<PBASE>::declareGaudiProperty(t, htype());
  }

detStore()

const ServiceHandle< StoreGateSvc > & AthCommonDataStore< AthCommonMsg< AlgTool > >::detStore ( ) const

inlineinherited

The standard StoreGateSvc/DetectorStore Returns (kind of) a pointer to the StoreGateSvc.

Definition at line 95 of file AthCommonDataStore.h.

{ return m_detStore; }

dump() [1/2]

virtual MsgStream & InDet::TRT_TrackSegmentsMaker_BarrelCosmics::dump ( MsgStream & out ) const

inlineoverridevirtual

Implements InDet::ITRT_TrackSegmentsMaker.

Definition at line 70 of file TRT_TrackSegmentsMaker_BarrelCosmics.h.

      { return out; };

dump() [2/2]

virtual std::ostream & InDet::TRT_TrackSegmentsMaker_BarrelCosmics::dump ( std::ostream & out ) const

inlineoverridevirtual

Implements InDet::ITRT_TrackSegmentsMaker.

Definition at line 72 of file TRT_TrackSegmentsMaker_BarrelCosmics.h.

      { return out; };

endEvent()

void InDet::TRT_TrackSegmentsMaker_BarrelCosmics::endEvent ( InDet::ITRT_TrackSegmentsMaker::IEventData & event_data ) const

overridevirtual

Implements InDet::ITRT_TrackSegmentsMaker.

Definition at line 167 of file TRT_TrackSegmentsMaker_BarrelCosmics.cxx.

                                                                                                                       {
  TRT_TrackSegmentsMaker_BarrelCosmics::EventData &
     event_data  = TRT_TrackSegmentsMaker_BarrelCosmics::EventData::getPrivateEventData(virt_event_data);
 
  ATH_MSG_DEBUG("InDet::TRT_TrackSegmentsMaker_BarrelCosmics::endEvent()" );
 
  // elements of m_segments created by new have not been passed on
  if ( event_data.m_segmentDriftCirclesCount < event_data.m_segments.size() ) {
    msg(MSG::WARNING) << "endEvent() you called the function to create the segments but didn't retrieve them later??" << endmsg;
    msg(MSG::WARNING) << "endEvent() deleting remaining elements of m_segments" << endmsg;
    for (unsigned int i=event_data.m_segmentDriftCirclesCount; i<event_data.m_segments.size(); i++) delete event_data.m_segments[i];
  }
 
  }

evtStore()

ServiceHandle< StoreGateSvc > & AthCommonDataStore< AthCommonMsg< AlgTool > >::evtStore ( )

inlineinherited

The standard StoreGateSvc (event store) Returns (kind of) a pointer to the StoreGateSvc.

Definition at line 85 of file AthCommonDataStore.h.

{ return m_evtStore; }

extraDeps_update_handler()

void AthCommonDataStore< AthCommonMsg< AlgTool > >::extraDeps_update_handler ( Gaudi::Details::PropertyBase & ExtraDeps )

protectedinherited

Add StoreName to extra input/output deps as needed.

use the logic of the VarHandleKey to parse the DataObjID keys supplied via the ExtraInputs and ExtraOuputs Properties to add the StoreName if it's not explicitly given

finalize()

StatusCode InDet::TRT_TrackSegmentsMaker_BarrelCosmics::finalize ( )

overridevirtual

Implements InDet::ITRT_TrackSegmentsMaker.

Definition at line 63 of file TRT_TrackSegmentsMaker_BarrelCosmics.cxx.

                                                               {
   return StatusCode::SUCCESS;
}

find()

void InDet::TRT_TrackSegmentsMaker_BarrelCosmics::find ( const EventContext & ctx, InDet::ITRT_TrackSegmentsMaker::IEventData & event_data, InDet::TRT_DetElementLink_xk::TRT_DetElemUsedMap & used ) const

overridevirtual

Implements InDet::ITRT_TrackSegmentsMaker.

Definition at line 186 of file TRT_TrackSegmentsMaker_BarrelCosmics.cxx.

                                                                                                            {
  TRT_TrackSegmentsMaker_BarrelCosmics::EventData &
     event_data  = TRT_TrackSegmentsMaker_BarrelCosmics::EventData::getPrivateEventData(virt_event_data);
 
  if (!m_magneticField) { findOld(event_data); return; }
 
  ATH_MSG_DEBUG("InDet::TRT_TrackSegmentsMaker_BarrelCosmics::find()" );
 
 
  if ((int)event_data.m_listHitCenter.size()<m_minHitsAboveTOT) return;
 
  if (!event_data.m_segmentDriftCircles.empty()) { // debug only
    msg(MSG::WARNING) << "TRT_TrackSegmentsMaker_BarrelCosmics::find() probably called twice per event? or newEvent / newRegion have not been called. check your program" << endmsg;
    event_data.clear(); return;
  }
 
  std::vector<double> x0, phi, pivotX, pivotY, Xparabola, cotanParabola, InverseR;
  std::vector<int> nHitsPosY, nHitsNegY;
 
  // first find seeds
  int nIterations(15), countCalls(0);
  while (countCalls<150) {
 
    double xRange(1000.), phiRange(M_PI_4);
    double par[] = {0., M_PI_2, 0., 0., 0., 0., 0., 0.};
    int foundSeed(0);
 
    for (int i=0; i<nIterations; i++) {
 
      countCalls++;
      foundSeed = findSeed( par[0]-xRange, par[0]+xRange, par[1]-phiRange, par[1]+phiRange, par, event_data);
      if ( !foundSeed ) break;
 
      xRange /= 3.;
      phiRange /= 2.;
      if ( xRange < 0.01 || phiRange < 0.00001) break;
    }
    if (!foundSeed) break;
 
    if (m_magneticField) findSeedInverseR(par, event_data);
 
// remove the hits associated with this region, save this region, search again
    int countAssociatedHits[] = {0, 0};
    double cosphi = std::cos( par[1] );
    double sinphi = std::sqrt( 1. - cosphi*cosphi );
    double range = (m_magneticField) ? 10. : 2.; // BE CAREFULL ABOUT THIS RANGE, IT USED TO BE 2 BUT PERHAPS IT SHOULD BE INCREASED TO 10 in the case of magnetic field!
 
 
    double measx[200], measy[200];
    int countMeas(0);
 
    for (std::vector< Amg::Vector3D>::iterator it = event_data.m_listHitCenter.begin(); it!=event_data.m_listHitCenter.end(); ) {
 
      double a = (par[3]-it->x())*sinphi+(it->y()-par[4])*cosphi;
      double b = (m_magneticField) ? 0.5 * (std::pow(it->x()-par[3], 2.) + std::pow(it->y()-par[4], 2.) - std::pow(a, 2)) : 0.;
      if ( std::abs(a+par[2]*b) > range ) { ++it; continue; }
 
      if (m_magneticField && countMeas<200) { measx[countMeas] = it->x(); measy[countMeas] = it->y(); countMeas++; }
 
      countAssociatedHits[(it->y()>0)?0:1]++;
      it = event_data.m_listHitCenter.erase( it );
    }
 
    if ( countAssociatedHits[0]+countAssociatedHits[1] < m_minHitsAboveTOT ) continue;
 
    if (m_magneticField) segFit(measx, measy, countMeas, nullptr, par+3);
 
    ATH_MSG_DEBUG("countAssociatedHits " << countAssociatedHits[0] << " "
                  << countAssociatedHits[1] << " m_minHitsAboveTOT " << m_minHitsAboveTOT );
    x0.push_back( par[0] ); phi.push_back( par[1] ); nHitsPosY.push_back( countAssociatedHits[0] ); nHitsNegY.push_back( countAssociatedHits[1] );
 
    pivotX.push_back( par[3] ); pivotY.push_back( par[4] ); Xparabola.push_back( par[5] ); cotanParabola.push_back( par[6] ); InverseR.push_back( par[7] );
  } // end for (int i=0; i<nIterations; i++) loop
// end finding seeds
 
// save all TRT hits for found segments
 
  int nFoundSegments = x0.size(); if (nFoundSegments>10) nFoundSegments = 10; // number of found segments
  {
     for (int i=0; i<nFoundSegments; i++) {
        event_data.m_segmentDriftCircles.emplace_back();
     }
  }
 
  double window = (m_magneticField) ? 4. : 2.; // change for magnetic field
  double residual;
 
  for (unsigned int i=0; i<event_data.m_listHits.size(); i++) {
 
    const Amg::Vector3D &center = event_data.m_listHits[i]->detectorElement()->surface(event_data.m_listHits[i]->identify()).center();
    for (int j=0; j<nFoundSegments; j++) {
 
      if (nHitsPosY[j]<5 && center.y()>0.) continue;
      if (nHitsNegY[j]<5 && center.y()<0.) continue;
 
          if (m_magneticField) {
        double sinphi = std::sqrt(1./(1+cotanParabola[j]*cotanParabola[j]));
        double cosphi = std::sqrt(1.-sinphi*sinphi); if (cotanParabola[j]<0.) cosphi *= -1.;
        double a = (pivotX[j]+Xparabola[j]-center.x())*sinphi+(center.y()-pivotY[j])*cosphi;
            double b = 0.5 * (std::pow(center.x()-pivotX[j], 2.) + std::pow(center.y()-pivotY[j], 2.) - std::pow(a, 2)) ;
            residual = a + InverseR[j] * b;
 
          } else {
                double cosphi = std::cos(phi[j]);
                double sinphi = std::sqrt(1.-cosphi*cosphi);
                residual = (x0[j]-center.x())*sinphi+center.y()*cosphi;
          }
 
      if (std::abs(residual)<window) {
        event_data.m_segmentDriftCircles[j].push_back(event_data.m_listHits[i]);
        break;
      }
    }
  }
  // end saving TRT hits
 
 
 
  // merge segments: can be simple: if 2 of them similar values of impact par -> copy hits from the second vector into the first one and clear the second one
  // XXXXXXXX to do: determine the optimal merging parameters
 
  if (m_mergeSegments) { // merge segments, not yet tested properly
 
     if (x0.size()>1) {
        int mergeI = 0;
    int mergeJ = 0;
    double mergeX0(100.), mergePhi(0.1);
        for (int i=0; i<nFoundSegments; i++) {
           for (int j=i+1; j<nFoundSegments; j++) {
              if ( std::abs(x0[i]-x0[j])<mergeX0 && std::abs(phi[i]-phi[j])<mergePhi ) {
                 mergeI = i;
                 mergeJ = j;
                 mergeX0 = std::abs(x0[i]-x0[j]);
                 mergePhi = std::abs(phi[i]-phi[j]);
              }
           }
    }
        if (mergeI != mergeJ) {
           ATH_MSG_DEBUG("Merge segments " << mergeI << " and " << mergeJ << " of size "
                         << event_data.m_segmentDriftCircles[mergeI].size() << ", " << event_data.m_segmentDriftCircles[mergeJ].size()
                         << "; difference in the impact par x: " << mergeX0 << " phi: " << mergePhi );
           for (unsigned int i=0; i<event_data.m_segmentDriftCircles[mergeJ].size(); i++) {
              event_data.m_segmentDriftCircles[mergeI].push_back(event_data.m_segmentDriftCircles[mergeJ][i]);
           }
           event_data.m_segmentDriftCircles[mergeJ].clear();
        }
     }
  } // end merge segments
 
 
  if (msgLvl(MSG::DEBUG)) {  // debug: check how many hits per found segments
    msg(MSG::DEBUG) << "find() debug (" << nFoundSegments << ")" ;
    for (unsigned int i=0; i<event_data.m_segmentDriftCircles.size(); i++) {
       msg(MSG::DEBUG) << " " << i << " " << event_data.m_segmentDriftCircles[i].size();
    }
    msg(MSG::DEBUG) << endmsg;
  }
 
  for (unsigned int i=0; i<event_data.m_segmentDriftCircles.size(); i++) { // convert to segments
    if ((int)event_data.m_segmentDriftCircles[i].size()<m_minHitsForSegment) continue;
    double trackpar[] = {x0[i], phi[i]};
    convert(event_data.m_segmentDriftCircles[i], trackpar, event_data);
  }
  ATH_MSG_DEBUG(  "find(), number of converted segments: " << event_data.m_segments.size() );
}

findOld()

void InDet::TRT_TrackSegmentsMaker_BarrelCosmics::findOld ( TRT_TrackSegmentsMaker_BarrelCosmics::EventData & event_data ) const

private

Definition at line 813 of file TRT_TrackSegmentsMaker_BarrelCosmics.cxx.

                                                                                                                      {
 
   ATH_MSG_DEBUG( "InDet::TRT_TrackSegmentsMaker_BarrelCosmics::find()");
 
  if ((int)event_data.m_listHitCenter.size()<m_minHitsAboveTOT) return;
 
  if (!event_data.m_segmentDriftCircles.empty()) { // debug only
    ATH_MSG_WARNING("find probably called twice per event? or newEvent / newRegion have not been called. check your program" );
    event_data.clear(); return;
  }
 
  std::vector<double> x0, phi;
  std::vector<int> nHitsPosY, nHitsNegY;
 
  // first find seeds
  int nIterations(15), countCalls(0);
  while (countCalls<150) {
 
    double xRange(1000.), phiRange(M_PI_4);
    double par[] = {0., M_PI_2};
    int foundSeed(0);
 
    for (int i=0; i<nIterations; i++) {
 
      countCalls++;
      foundSeed = findSeed( par[0]-xRange, par[0]+xRange, par[1]-phiRange, par[1]+phiRange, par, event_data);
      if ( !foundSeed ) break;
 
      xRange /= 3.;
      phiRange /= 2.;
      if ( xRange < 0.01 || phiRange < 0.00001) break;
 
    }
    if (!foundSeed) break;
 
// remove the hits associated with this region, save this region, search again
    int countAssociatedHits[] = {0, 0};
    double cosphi = std::cos(par[1]);
    double sinphi = std::sqrt(1.-cosphi*cosphi);
 
    for (std::vector< Amg::Vector3D >::iterator it = event_data.m_listHitCenter.begin(); it!=event_data.m_listHitCenter.end(); ) {
 
      if ( std::abs( (par[0]-it->x())*sinphi + it->y()*cosphi ) > 2. ) { ++it; continue; }
      countAssociatedHits[(it->y()>0)?0:1]++;
      it = event_data.m_listHitCenter.erase( it );
    }
 
    if ( countAssociatedHits[0]+countAssociatedHits[1] < m_minHitsAboveTOT ) continue;
 
    x0.push_back( par[0] ); phi.push_back( par[1] ); nHitsPosY.push_back( countAssociatedHits[0] ); nHitsNegY.push_back( countAssociatedHits[1] );
 
  } // end for (int i=0; i<nIterations; i++) loop
// end finding seeds
 
// save all TRT hits for found segments
  int nFoundSegments = x0.size();
  if (nFoundSegments>10) nFoundSegments = 10; // number of found segments
  for (int i=0; i<nFoundSegments; i++) {
     event_data.m_segmentDriftCircles.emplace_back();
  }
 
  for (unsigned int i=0; i<event_data.m_listHits.size(); i++) {
    const Amg::Vector3D &
       center = event_data.m_listHits[i]->detectorElement()->surface(event_data.m_listHits[i]->identify()).center();
 
    for (int j=0; j<nFoundSegments; j++) {
      if (nHitsPosY[j]<5 && center.y()>0.) continue;
      if (nHitsNegY[j]<5 && center.y()<0.) continue;
      double cosphi = std::cos(phi[j]);
      double sinphi = std::sqrt(1.-cosphi*cosphi);
      if ( std::abs((x0[j]-center.x())*sinphi+center.y()*cosphi) < 2.) {
        event_data.m_segmentDriftCircles[j].push_back(event_data.m_listHits[i]);
    break;
      }
    }
  }
  // end saving TRT hits
 
  if (msgLvl(MSG::DEBUG)) {
     // debug: check how many hits per found segments
     msg(MSG::DEBUG) << "find() debug (" << nFoundSegments << ")" ;
     for (unsigned int i=0; i<event_data.m_segmentDriftCircles.size(); i++) {
        msg(MSG::DEBUG) << " " << i << " "                              \
                        << event_data.m_segmentDriftCircles[i].size() ;
     }
     msg(MSG::DEBUG) << endmsg;
  }
 
  for (unsigned int i=0; i<event_data.m_segmentDriftCircles.size(); i++) { // convert to segments
    if ((int)event_data.m_segmentDriftCircles[i].size()<m_minHitsForSegment) continue;
    double trackpar[] = {x0[i], phi[i]};
    convert(event_data.m_segmentDriftCircles[i], trackpar, event_data);
  }
  ATH_MSG_DEBUG( "find(), number of converted segments: " << event_data.m_segments.size() );
}

findSeed()

int InDet::TRT_TrackSegmentsMaker_BarrelCosmics::findSeed ( double xmin, double xmax, double phimin, double phimax, double * bestParameters, TRT_TrackSegmentsMaker_BarrelCosmics::EventData & event_data ) const

private

Definition at line 380 of file TRT_TrackSegmentsMaker_BarrelCosmics.cxx.

{
  if ((int)event_data.m_listHitCenter.size()<m_minHitsAboveTOT) return 0;
 
  double xbin = (xmax-xmin) / (1.*m_nBinsInX);
  double searchWindow = (xbin>2.) ? xbin : 2.; //searchWindow *= searchWindow;
  double phibin = (phimax-phimin) / (1.*m_nBinsInPhi);
  int maxHits(0), index, indexmin, indexmax;
 
  int binInX[100]; for (int & i : binInX) i = 0;
 
  for (int j=0; j<m_nBinsInPhi; j++) {
 
    double phi = phimin+(0.5+j)*phibin;
    double cosphi( std::cos(phi) ), sinphi( std::sin(phi) );
    for (int i=0; i<m_nBinsInX; i++) binInX[i] = 0;
    double transformXMin(xmin*sinphi); xbin = (xmax-xmin)*sinphi / (1.*m_nBinsInX);
 
    for (auto & k : event_data.m_listHitCenter) {
      double transformX = k.x() * sinphi - k.y() * cosphi;
      indexmin = (int) ((transformX-transformXMin-searchWindow)/xbin);
      indexmax = (int) ((transformX-transformXMin+searchWindow)/xbin);
 
      if (indexmin<0) indexmin=0;
      if (indexmax>99) indexmax=99;
      for (index = indexmin; index<=indexmax; index++) binInX[index]++;
    }
    index = -1;
    for (int i=0; i<m_nBinsInX; i++) if (binInX[i]>maxHits) { index = i; maxHits = binInX[i]; }
    if (index>=0) {
      bestParameters[0] = ( xbin * index + transformXMin) / sinphi;
      bestParameters[1] = phi;
    }
  }
 
  return (maxHits>=m_minHitsForSeed) ? 1 : 0;
}

findSeedInverseR()

void InDet::TRT_TrackSegmentsMaker_BarrelCosmics::findSeedInverseR ( double * par, TRT_TrackSegmentsMaker_BarrelCosmics::EventData & event_data ) const

private

Definition at line 423 of file TRT_TrackSegmentsMaker_BarrelCosmics.cxx.

                                                                                                                                   {
 
  double cosphi = std::cos( par[1] );
  double sinphi = std::sqrt( 1. - cosphi*cosphi );
 
  double parTransformX = par[0] * sinphi;
 
  double meanTransformY(0.);
  int countMeanTransformY(0);
  for (auto & k : event_data.m_listHitCenter) { // first determine the mean
 
    double transformX = k.x() * sinphi - k.y() * cosphi;
    if ( std::abs(transformX-parTransformX) > 2. ) continue;
    meanTransformY += k.x() * cosphi + k.y() * sinphi;
    countMeanTransformY++;
  }
  if (!countMeanTransformY) {
     ATH_MSG_WARNING("InDet::TRT_TrackSegmentsMaker_BarrelCosmics::findSeedInverseR(), no hits in the seed region???" );
    return;
  }
  meanTransformY /= (double) countMeanTransformY;
 
 
// hard-coded parameters in the second part of this function:
// search range: [-0.00202, 0.00202] divided into 101 bins of width 0.00004 (such that range [-0.00002, 0.00002] is bin 50)
// 1/R = 0.002/mm corresponds to R = 0.5 m
// circle search window: 200 mm (for R=1m, circle-to-line distance 0.5 m away from a common point is 130mm)
 
// -> pivot at: x_pivot = meanTransformY * cosphi + parTransformX * sinphi; y_pivot = meanTransformY * sinphi - parTransformX * cosphi;
  double mean[] = { meanTransformY * cosphi + parTransformX * sinphi, meanTransformY * sinphi - parTransformX * cosphi };
  int scanInverseR[101]; for (int & i : scanInverseR)  i = 0;
 
  double window = 10.; // parabola search window BE CAREFULL OF THIS RANGE!
 
  for (auto & it : event_data.m_listHitCenter) {
 
    double transformX = it.x() * sinphi - it.y() * cosphi;
    if ( std::abs(transformX-parTransformX) > 200. ) continue;  // search circles in a broad band
 
    double a = (mean[0]-it.x())*sinphi+(it.y()-mean[1])*cosphi;  // TEST THAT THIS CONDITION ( if ( fabs(a) > 200. ) continue; ) IS THE SAME AS ABOVE!
    double b = 0.5 * (std::pow(it.x()-mean[0], 2.) + std::pow(it.y()-mean[1], 2.) - std::pow(a, 2));
 
    // estimated allowed range in radius: x_1,2 = ( +- window - a ) / b -> get integer as  ((int) (ceil(x/bin-0.5))) + 50
    b *= 0.00004; // multiply by the bin width
 
    int i1(0), i2(0);
    if (std::abs(b)>0.0000001) {
      double i1_tmp = ( window - a ) / b + 0.5;
      double i2_tmp = ( -window - a ) / b + 0.5;
      if (std::abs(i1_tmp)<1000.) { i1 = (int) (std::ceil( i1_tmp )); i1 += 50; }
      if (std::abs(i2_tmp)<1000.) { i2 = (int) (std::ceil( i2_tmp )); i2 += 50; }
    }
    if (i1>100) { i1 = 100; } else { if (i1<0) i1 = 0; }
    if (i2>100) { i2 = 100; } else { if (i2<0) i2 = 0; }
    if (i1+i2==0 || i1+i2==200) continue; // out of search range
    if (i1<=i2) { for (int i=i1; i<=i2; i++) scanInverseR[i]++; }
    else { for (int i=i2; i<=i1; i++) scanInverseR[i]++; }
  }
 
  int iMax(-1), hitsMax(0);
  for (int i=0; i<101; i++) if (scanInverseR[i]>hitsMax) { iMax = i; hitsMax = scanInverseR[i]; } // find max bin
 
  par[2] = 0.00004 * (iMax-50); // save estimated inverse radius
  for (int i=0; i<2; i++) par[3+i] = mean[i]; }

initialize()

StatusCode InDet::TRT_TrackSegmentsMaker_BarrelCosmics::initialize ( )

overridevirtual

Implements InDet::ITRT_TrackSegmentsMaker.

Definition at line 30 of file TRT_TrackSegmentsMaker_BarrelCosmics.cxx.

                                                                 {
 
   ATH_MSG_DEBUG("InDet::TRT_TrackSegmentsMaker_BarrelCosmics::initialize(), March 2012"
                << ", magnetic field: " << (m_magneticField?"ON":"OFF")
                << " search bins: " << m_nBinsInX << ", " << m_nBinsInPhi);
 
  StatusCode sc = StatusCode::SUCCESS;
 
  // Initialize ReadHandle
  ATH_CHECK(m_driftCirclesName.initialize());
  // TRT
  if (detStore()->retrieve(m_trtid, "TRT_ID").isFailure()) {
    ATH_MSG_FATAL("Could not get TRT ID helper");
    return StatusCode::FAILURE;
  }
 
  if (m_minHitsForSeed<=0) m_minHitsForSeed = (int) ( 0.601 * m_minHitsForSegment );
  if (m_minHitsAboveTOT<=0) m_minHitsAboveTOT = (int) (0.751 * m_minHitsForSegment );
 
  ATH_MSG_DEBUG("m_minHitsForSegment = " << m_minHitsForSegment);
  ATH_MSG_DEBUG("m_minHitsForSeed    = " << m_minHitsForSeed);
  ATH_MSG_DEBUG("m_minHitsAboveTOT   = " << m_minHitsAboveTOT);
 
  if (m_minSeedTOT<0. || m_minSeedTOT>20.)
    ATH_MSG_WARNING("initialize(): are you sure about the MinimalTOTForSeedSearch setting? (set at " << m_minSeedTOT << ")");
 
  ATH_MSG_DEBUG("InDet::TRT_TrackSegmentsMaker_BarrelCosmics::initialize(), jobProperties: "
        << "MinimalNumberOfTRTHits " << m_minHitsForSegment << ", MinimalTOTForSeedSearch: " << m_minSeedTOT
        << ", m_minHitsForSeed: " << m_minHitsForSeed << ", m_minHitsAboveTOT: " << m_minHitsAboveTOT );
 
  return sc;
}

inputHandles()

virtual std::vector< Gaudi::DataHandle * > AthCommonDataStore< AthCommonMsg< AlgTool > >::inputHandles ( ) const

overridevirtualinherited

Return this algorithm's input handles.

We override this to include handle instances from key arrays if they have not yet been declared. See comments on updateVHKA.

interfaceID()

const InterfaceID & InDet::ITRT_TrackSegmentsMaker::interfaceID ( )

inlinestaticinherited

Definition at line 110 of file ITRT_TrackSegmentsMaker.h.

    {
      return IID_ITRT_TrackSegmentsMaker;
    }

linearRegressionParabolaFit()

void InDet::TRT_TrackSegmentsMaker_BarrelCosmics::linearRegressionParabolaFit ( double * mean, double * a )

staticprivate

Definition at line 503 of file TRT_TrackSegmentsMaker_BarrelCosmics.cxx.

                                                                                                   { // input: elsewhere calculated mean, output: result a
 
  double A[6], discriminant;
 
  A[0] = mean[8]*mean[8]-mean[4]*mean[9];                    // parabola fit
  A[1] = mean[1]*mean[9]-mean[4]*mean[8];
  A[2] = mean[4]*mean[4]-mean[1]*mean[8];
  A[3] = mean[4]*mean[4]-mean[9];
  A[4] = mean[8]-mean[1]*mean[4];
  A[5] = mean[1]*mean[1]-mean[4];
  discriminant = std::abs( std::pow(mean[4], 3) + mean[8]*mean[8] + mean[1]*mean[1]*mean[9] - mean[4]*(2.*mean[1]*mean[8]+mean[9]) );
 
  a[0] = A[0] * mean[0] + A[1] * mean[2] + A[2] * mean[6];
  a[1] = A[1] * mean[0] + A[3] * mean[2] + A[4] * mean[6];
  a[2] = A[2] * mean[0] + A[4] * mean[2] + A[5] * mean[6];
  discriminant *= -1.;
  for (int i=0; i<3; i++) { a[i] /= discriminant; }
 
  double inverseSin3phi = 1. + a[1]*a[1]; inverseSin3phi *= std::sqrt(inverseSin3phi); // 1/sin^3phi
  a[2] *= 2. / inverseSin3phi; }

msg()

MsgStream & AthCommonMsg< AlgTool >::msg ( ) const

inlineinherited

Definition at line 24 of file AthCommonMsg.h.

                                {
    return this->msgStream();
  }

msgLvl()

bool AthCommonMsg< AlgTool >::msgLvl ( const MSG::Level lvl ) const

inlineinherited

Definition at line 30 of file AthCommonMsg.h.

                                               {
    return this->msgLevel(lvl);
  }

newEvent()

std::unique_ptr< InDet::ITRT_TrackSegmentsMaker::IEventData > InDet::TRT_TrackSegmentsMaker_BarrelCosmics::newEvent ( const EventContext & ctx ) const

overridevirtual

Implements InDet::ITRT_TrackSegmentsMaker.

Definition at line 71 of file TRT_TrackSegmentsMaker_BarrelCosmics.cxx.

                                                                                                                                       {
 
  ATH_MSG_DEBUG( "InDet::TRT_TrackSegmentsMaker_BarrelCosmics::newEvent()");
 
 
  SG::ReadHandle<InDet::TRT_DriftCircleContainer> trtcontainer(m_driftCirclesName, ctx); // get TRT_DriftCircle list from StoreGate containers
 
  if (not trtcontainer.isValid()) {
     msg(MSG::ERROR) << "Could not find TRT_DriftCircles collection!" << endmsg;
     std::stringstream msg;
     msg << name() <<" no TRT drift circles : " << m_driftCirclesName.key();
     throw std::runtime_error(msg.str());
  }
 
  std::unique_ptr<TRT_TrackSegmentsMaker_BarrelCosmics::EventData>
     event_data = std::make_unique<TRT_TrackSegmentsMaker_BarrelCosmics::EventData>(trtcontainer.cptr());
 
  for(const auto *it : *trtcontainer) {
 
    const InDet::TRT_DriftCircleCollection *colNext=&(*it);
    if (!colNext) { msg(MSG::WARNING) << "newEvent(): !colNext " << endmsg; continue; }
 
    for (const auto *circleit : *colNext){
 
      if ( m_trtid->is_barrel((*circleit).identify()) ) { // TRT barrel
 
    event_data->m_listHits.push_back( circleit );
 
        double onMyTime = circleit->timeOverThreshold();
        if ( circleit->firstBinHigh()  && (circleit->trailingEdge() != 24) && (circleit->trailingEdge() != 0) ) onMyTime = ( (double) circleit->trailingEdge() + 1 ) * 3.125;
        if (onMyTime < m_minSeedTOT) continue;
 
        const Amg::Vector3D &center = circleit->detectorElement()->surface(circleit->identify()).center();
        event_data->m_listHitCenter.push_back( center );
      }
    }
  } // end trtcontainer loop
 
  if ( m_maxTotalHits && ((int)event_data->m_listHits.size()) > m_maxTotalHits ) {
     ATH_MSG_DEBUG( "skipping high occupancy event of " << event_data->m_listHits.size() << " barrel hits, limit at "
                    << m_maxTotalHits );
     event_data->clear();
  }
 
  ATH_MSG_DEBUG( "newEvent(): Number of TRT barrel hits: " << event_data->m_listHits.size()
                 << " Number of hits with TOT > " << m_minSeedTOT << ": " << event_data->m_listHitCenter.size() );
 
  return std::unique_ptr<InDet::ITRT_TrackSegmentsMaker::IEventData>(event_data.release());
}

newRegion()

std::unique_ptr< InDet::ITRT_TrackSegmentsMaker::IEventData > InDet::TRT_TrackSegmentsMaker_BarrelCosmics::newRegion ( const EventContext & ctx, const std::vector< IdentifierHash > & vTRT ) const

overridevirtual

Implements InDet::ITRT_TrackSegmentsMaker.

Definition at line 122 of file TRT_TrackSegmentsMaker_BarrelCosmics.cxx.

                                                                                                                         {
 
  ATH_MSG_DEBUG("InDet::TRT_TrackSegmentsMaker_BarrelCosmics::newRegion()" );
 
  SG::ReadHandle<InDet::TRT_DriftCircleContainer> trtcontainer(m_driftCirclesName, ctx);
  if (not trtcontainer.isValid()) {
    msg(MSG::ERROR) << "m_trtcontainer is empty!!!" << endmsg;
     std::stringstream msg;
     msg << name() <<" no TRT drift circles : " << m_driftCirclesName.key();
     throw std::runtime_error(msg.str());
  }
 
  std::unique_ptr<TRT_TrackSegmentsMaker_BarrelCosmics::EventData>
     event_data = std::make_unique<TRT_TrackSegmentsMaker_BarrelCosmics::EventData>(trtcontainer.cptr());
 
 
  for(auto d : vTRT) {
    for ( InDet::TRT_DriftCircleContainer::const_iterator w = trtcontainer->indexFind(d); w!=trtcontainer->end(); ++w ) {
      for(const auto *circleit : **w) {
 
        if(std::abs(m_trtid->barrel_ec( circleit->identify() ))!=1) continue;
 
        event_data->m_listHits.push_back(circleit);
 
        double onMyTime = circleit->timeOverThreshold();
        if ( circleit->firstBinHigh()  && (circleit->trailingEdge() != 24) && (circleit->trailingEdge() != 0) ) onMyTime = ( (double) circleit->trailingEdge() + 1 ) * 3.125;
        if (onMyTime < m_minSeedTOT) continue;
        const Amg::Vector3D &center = circleit->detectorElement()->surface(circleit->identify()).center();
        event_data->m_listHitCenter.push_back( center );
      }
    }
  }
 
  if ( m_maxTotalHits && ((int)event_data->m_listHits.size()) > m_maxTotalHits ) {
     ATH_MSG_DEBUG("skipping high occupancy event of " << event_data->m_listHits.size() << " barrel hits, limit at "
                   << m_maxTotalHits);
    event_data->clear();
  }
 
  ATH_MSG_DEBUG( "newRegion(): Number of TRT barrel hits: " << event_data->m_listHits.size()
                 << " Number of hits with TOT > " << m_minSeedTOT << ": " << event_data->m_listHitCenter.size() );
 
  return std::unique_ptr<InDet::ITRT_TrackSegmentsMaker::IEventData>(event_data.release());
}

next()

Trk::TrackSegment * InDet::TRT_TrackSegmentsMaker_BarrelCosmics::next ( InDet::ITRT_TrackSegmentsMaker::IEventData & event_data ) const

overridevirtual

Implements InDet::ITRT_TrackSegmentsMaker.

Definition at line 360 of file TRT_TrackSegmentsMaker_BarrelCosmics.cxx.

{
  TRT_TrackSegmentsMaker_BarrelCosmics::EventData &
     event_data  = TRT_TrackSegmentsMaker_BarrelCosmics::EventData::getPrivateEventData(virt_event_data);
 
  // next 6 lines: for debugging purposes only
  ATH_MSG_DEBUG( "InDet::TRT_TrackSegmentsMaker_BarrelCosmics::next(): return "
                 << event_data.m_segmentDriftCirclesCount << " out of " << event_data.m_segments.size() );
 
  if (event_data.m_segmentDriftCirclesCount > event_data.m_segments.size())
    msg(MSG::ERROR) << "m_segmentDriftCirclesCount = " << event_data.m_segmentDriftCirclesCount << ", m_segments.size() = "
                      << event_data.m_segments.size() << endmsg;
 
  return (event_data.m_segmentDriftCirclesCount<event_data.m_segments.size())
     ?(event_data.m_segments[event_data.m_segmentDriftCirclesCount++])
     :nullptr;
}

outputHandles()

virtual std::vector< Gaudi::DataHandle * > AthCommonDataStore< AthCommonMsg< AlgTool > >::outputHandles ( ) const

overridevirtualinherited

Return this algorithm's output handles.

We override this to include handle instances from key arrays if they have not yet been declared. See comments on updateVHKA.

renounce()

std::enable_if_t< std::is_void_v< std::result_of_t< decltype(&T::renounce)(T)> > &&!std::is_base_of_v< SG::VarHandleKeyArray, T > &&std::is_base_of_v< Gaudi::DataHandle, T >, void > AthCommonDataStore< AthCommonMsg< AlgTool > >::renounce ( T & h )

inlineprotectedinherited

Definition at line 380 of file AthCommonDataStore.h.

  {
    h.renounce();
    PBASE::renounce (h);
  }

renounceArray()

void AthCommonDataStore< AthCommonMsg< AlgTool > >::renounceArray ( SG::VarHandleKeyArray & handlesArray )

inlineprotectedinherited

remove all handles from I/O resolution

Definition at line 364 of file AthCommonDataStore.h.

                                                          {
    handlesArray.renounce();
  }

segFit()

void InDet::TRT_TrackSegmentsMaker_BarrelCosmics::segFit ( double * measx, double * measy, int nhits, double * residuals = 0, double * result = 0 )

staticprivate

Definition at line 738 of file TRT_TrackSegmentsMaker_BarrelCosmics.cxx.

                                                                                                                                  {
 
  if (nhits<10) return;
 
  double shift[] = {0., 0.};                                  // shift the points so that mean x = 0 and mean y = 0
  for (int i=0; i<nhits; i++) { shift[0] += measx[i]; shift[1] += measy[i]; }
  for (double & i : shift) i /= (double) nhits;
  for (int i=0; i<nhits; i++) { measx[i] -= shift[0]; measy[i] -= shift[1]; }
 
  double mean[10]; for (double & i : mean) i = 0.;    // calculate momenta needed for the line, circle and parabola fit
  for (int i=0; i<nhits; i++) {
    double x2 = measx[i]*measx[i];
    double y2 = measy[i]*measy[i];
    mean[0] += measx[i];
    mean[1] += measy[i];
    mean[2] += measx[i]*measy[i];
    mean[3] += x2;
    mean[4] += y2;
    mean[5] += x2 * measy[i];
    mean[6] += y2 * measx[i];
    mean[7] += x2 * measx[i];
    mean[8] += y2 * measy[i];
    mean[9] += y2 * y2;
  }
  for (double & i : mean)  i /= (double) nhits;
 
  double A[6], discriminant, a[3];
 
  A[0] = mean[8]*mean[8]-mean[4]*mean[9];                    // parabola fit, no need for mean[3], [5], [7], se mi zdi
  A[1] = mean[1]*mean[9]-mean[4]*mean[8];
  A[2] = mean[4]*mean[4]-mean[1]*mean[8];
  A[3] = mean[4]*mean[4]-mean[9];
  A[4] = mean[8]-mean[1]*mean[4];
  A[5] = mean[1]*mean[1]-mean[4];
  discriminant = std::abs( std::pow(mean[4], 3) + mean[8]*mean[8] + mean[1]*mean[1]*mean[9] - mean[4]*(2.*mean[1]*mean[8]+mean[9]) );
 
  a[0] = A[0] * mean[0] + A[1] * mean[2] + A[2] * mean[6];
  a[1] = A[1] * mean[0] + A[3] * mean[2] + A[4] * mean[6];
  a[2] = A[2] * mean[0] + A[4] * mean[2] + A[5] * mean[6];
  discriminant *= -1.;
  for (double & i : a) i /= discriminant;
  double Xparabola = a[0];
  double cotanParabola = a[1];
  double inverseSin3phi = 1. + a[1]*a[1]; inverseSin3phi *= std::sqrt(inverseSin3phi); // 1/sin^3phi
  double inverseR = 2. * a[2] / inverseSin3phi;
  double sinphi = std::sqrt(1./(1+a[1]*a[1]));
  double cosphi = std::sqrt(1.-sinphi*sinphi); if (cotanParabola<0.) cosphi *= -1.;
 
  if (result) {
    for (int i=0; i<2; i++) result[i] = shift[i]; // pivot
    result[2] = Xparabola;
    result[3] = cotanParabola;
    result[4] = inverseR;
  }
 
  if (residuals) {
    for (int i=0; i<nhits; i++) {
      double tmp = (Xparabola-measx[i])*sinphi+measy[i]*cosphi;
      double res = (tmp+0.5*inverseR*(std::pow(measx[i]-Xparabola, 2.) + std::pow(measy[i], 2.) - std::pow(tmp, 2)));
      residuals[i] = res;
    }
  }
 
  for (int i=0; i<nhits; i++) { measx[i] += shift[0]; measy[i] += shift[1]; }
 
  }

sortHits()

bool InDet::TRT_TrackSegmentsMaker_BarrelCosmics::sortHits ( const InDet::TRT_DriftCircle * dc1, const InDet::TRT_DriftCircle * dc2 )

staticprivate

sort hits on segment such that they are ordered from larger y to smaller (from top down)

Definition at line 524 of file TRT_TrackSegmentsMaker_BarrelCosmics.cxx.

                                                                                                                           {
 
  double y1 = (dc1->detectorElement())->surface(dc1->identify()).center().y();
  double y2 = (dc2->detectorElement())->surface(dc2->identify()).center().y();
  return ( y1 > y2 );
}

sysInitialize()

virtual StatusCode AthCommonDataStore< AthCommonMsg< AlgTool > >::sysInitialize ( )

overridevirtualinherited

Perform system initialization for an algorithm.

We override this to declare all the elements of handle key arrays at the end of initialization. See comments on updateVHKA.

Reimplemented in asg::AsgMetadataTool, AthCheckedComponent< AthAlgTool >, AthCheckedComponent<::AthAlgTool >, and DerivationFramework::CfAthAlgTool.

sysStart()

virtual StatusCode AthCommonDataStore< AthCommonMsg< AlgTool > >::sysStart ( )

overridevirtualinherited

Handle START transition.

We override this in order to make sure that conditions handle keys can cache a pointer to the conditions container.

updateVHKA()

void AthCommonDataStore< AthCommonMsg< AlgTool > >::updateVHKA ( Gaudi::Details::PropertyBase & )

inlineinherited

Definition at line 308 of file AthCommonDataStore.h.

                                               {
    // debug() << "updateVHKA for property " << p.name() << " " << p.toString() 
    //         << "  size: " << m_vhka.size() << endmsg;
    for (auto &a : m_vhka) {
      std::vector<SG::VarHandleKey*> keys = a->keys();
      for (auto k : keys) {
        k->setOwner(this);
      }
    }
  }

Member Data Documentation

m_detStore

StoreGateSvc_t AthCommonDataStore< AthCommonMsg< AlgTool > >::m_detStore

privateinherited

Pointer to StoreGate (detector store by default)

Definition at line 393 of file AthCommonDataStore.h.

m_driftCirclesName

SG::ReadHandleKey<InDet::TRT_DriftCircleContainer> InDet::TRT_TrackSegmentsMaker_BarrelCosmics::m_driftCirclesName {this,"TRT_ClustersContainer","TRT_DriftCircles","RHK to retrieve Drift Circles"}

protected

Container with TRT clusters.

Definition at line 109 of file TRT_TrackSegmentsMaker_BarrelCosmics.h.

{this,"TRT_ClustersContainer","TRT_DriftCircles","RHK to retrieve Drift Circles"} ;  

m_evtStore

StoreGateSvc_t AthCommonDataStore< AthCommonMsg< AlgTool > >::m_evtStore

privateinherited

Pointer to StoreGate (event store by default)

Definition at line 390 of file AthCommonDataStore.h.

m_magneticField

BooleanProperty InDet::TRT_TrackSegmentsMaker_BarrelCosmics::m_magneticField

private

Initial value:

{this, "IsMagneticFieldOn", true,
    "search for lines (if False) or circles (if True)"}

Definition at line 157 of file TRT_TrackSegmentsMaker_BarrelCosmics.h.

                                     {this, "IsMagneticFieldOn", true,
    "search for lines (if False) or circles (if True)"};

m_maxTotalHits

IntegerProperty InDet::TRT_TrackSegmentsMaker_BarrelCosmics::m_maxTotalHits {this, "MaxTotalNumberOfBarrelHits", 21000}

private

Definition at line 147 of file TRT_TrackSegmentsMaker_BarrelCosmics.h.

{this, "MaxTotalNumberOfBarrelHits", 21000};

m_mergeSegments

BooleanProperty InDet::TRT_TrackSegmentsMaker_BarrelCosmics::m_mergeSegments {this, "MergeSegments", false}

private

Definition at line 159 of file TRT_TrackSegmentsMaker_BarrelCosmics.h.

{this, "MergeSegments", false}; // default: False, should not be turned on yet

m_minHitsAboveTOT

IntegerProperty InDet::TRT_TrackSegmentsMaker_BarrelCosmics::m_minHitsAboveTOT {this, "MinNumberOfHitsAboveTOT", -1}

private

Definition at line 151 of file TRT_TrackSegmentsMaker_BarrelCosmics.h.

{this, "MinNumberOfHitsAboveTOT", -1};

m_minHitsForSeed

IntegerProperty InDet::TRT_TrackSegmentsMaker_BarrelCosmics::m_minHitsForSeed {this, "MinNumberOfHitsForSeed", -1}

private

Definition at line 149 of file TRT_TrackSegmentsMaker_BarrelCosmics.h.

{this, "MinNumberOfHitsForSeed", -1};

m_minHitsForSegment

IntegerProperty InDet::TRT_TrackSegmentsMaker_BarrelCosmics::m_minHitsForSegment {this, "MinimalNumberOfTRTHits", 20}

private

Definition at line 150 of file TRT_TrackSegmentsMaker_BarrelCosmics.h.

{this, "MinimalNumberOfTRTHits", 20};

m_minSeedTOT

DoubleProperty InDet::TRT_TrackSegmentsMaker_BarrelCosmics::m_minSeedTOT

private

Initial value:

{this, "MinimalTOTForSeedSearch", 10.,
    "minimal time over threshold for seed search - default ~ 10 ns"}

Definition at line 155 of file TRT_TrackSegmentsMaker_BarrelCosmics.h.

                                 {this, "MinimalTOTForSeedSearch", 10.,
    "minimal time over threshold for seed search - default ~ 10 ns"};

m_nBinsInPhi

IntegerProperty InDet::TRT_TrackSegmentsMaker_BarrelCosmics::m_nBinsInPhi {this, "NbinsInPhi", 10}

private

Definition at line 153 of file TRT_TrackSegmentsMaker_BarrelCosmics.h.

{this, "NbinsInPhi", 10};

m_nBinsInX

IntegerProperty InDet::TRT_TrackSegmentsMaker_BarrelCosmics::m_nBinsInX {this, "NbinsInX", 100}

private

Definition at line 152 of file TRT_TrackSegmentsMaker_BarrelCosmics.h.

{this, "NbinsInX", 100};

m_trtid

const TRT_ID* InDet::TRT_TrackSegmentsMaker_BarrelCosmics::m_trtid {nullptr}

protected

Definition at line 113 of file TRT_TrackSegmentsMaker_BarrelCosmics.h.

{nullptr};

m_TRTManagerName

StringProperty InDet::TRT_TrackSegmentsMaker_BarrelCosmics::m_TRTManagerName

protected

Initial value:

{this, "TrtManagerLocation", "TRT",
        "Name of TRT det. manager"}

Definition at line 110 of file TRT_TrackSegmentsMaker_BarrelCosmics.h.

                                     {this, "TrtManagerLocation", "TRT",
        "Name of TRT det. manager"};

m_varHandleArraysDeclared

bool AthCommonDataStore< AthCommonMsg< AlgTool > >::m_varHandleArraysDeclared

privateinherited

Definition at line 399 of file AthCommonDataStore.h.

m_vhka

std::vector<SG::VarHandleKeyArray*> AthCommonDataStore< AthCommonMsg< AlgTool > >::m_vhka

privateinherited

Definition at line 398 of file AthCommonDataStore.h.

---

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

• TRT_TrackSegmentsMaker_BarrelCosmics.h
• TRT_TrackSegmentsMaker_BarrelCosmics.cxx