Inheritance diagram for AlignmentMonitorTemplate:

Public Member Functions
void	afterAlignment (const edm::EventSetup &iSetup)
	AlignmentMonitorTemplate (const edm::ParameterSet &cfg)
void	book ()
	Book or retrieve histograms; MUST be reimplemented.
void	event (const edm::Event &iEvent, const edm::EventSetup &iSetup, const ConstTrajTrackPairCollection &iTrajTracks)
	Called for each event (by "run()"): may be reimplemented.
	~AlignmentMonitorTemplate ()
Private Attributes
TH1F *	m_hist
TH1F *	m_ihist
TH1F *	m_otherdir
TH1F *	m_otherdir2
std::map< Alignable , TH1F >	m_residuals

Detailed Description

Definition at line 28 of file AlignmentMonitorTemplate.cc.

Constructor & Destructor Documentation

AlignmentMonitorTemplate::AlignmentMonitorTemplate ( const edm::ParameterSet & cfg ) [inline]

Definition at line 30 of file AlignmentMonitorTemplate.cc.

: AlignmentMonitorBase(cfg, "AlignmentMonitorTemplate") { };

AlignmentMonitorTemplate::~AlignmentMonitorTemplate ( ) [inline]

Definition at line 31 of file AlignmentMonitorTemplate.cc.

{};

Member Function Documentation

void AlignmentMonitorTemplate::afterAlignment ( const edm::EventSetup & iSetup ) [virtual]

Called after updating AlignableTracker and AlignableMuon (by "endOfLoop()"): may be reimplemented

Reimplemented from AlignmentMonitorBase.

Definition at line 123 of file AlignmentMonitorTemplate.cc.

References AlignmentMonitorBase::iteration(), and m_otherdir.

                                                                         {
   m_otherdir->Fill(iteration());  // this one will only get one fill per iteration, because it's called in afterAlignment()
}

void AlignmentMonitorTemplate::book ( ) [virtual]

Book or retrieve histograms; MUST be reimplemented.

Implements AlignmentMonitorBase.

Definition at line 54 of file AlignmentMonitorTemplate.cc.

References AlignmentParameterStore::alignables(), AlignmentMonitorBase::book1D(), m_hist, m_ihist, m_otherdir, m_otherdir2, m_residuals, mergeVDriftHistosByStation::name, AlignmentMonitorBase::pStore(), and indexGen::title.

                                    {
   m_hist = book1D("/", "hist", "hist", 10, 0.5, 10.5);      // there's only one of these per job
   m_ihist = book1D("/iterN/", "ihist", "ihist", 10, 0, 1);  // there's a new one of these for each iteration
   // "/iterN/" is a special directory name, in which the "N" gets replaced by the current iteration number.

   m_otherdir = book1D("/otherdir/", "hist", "this is a histogram in another directory", 10, 0.5, 10.5);
   m_otherdir2 = book1D("/iterN/otherdir/", "hist", "here's one in another directory inside the iterN directories", 10, 0.5, 10.5);

   // This is a procedure that makes one histogram for each selected alignable, and puts them in the iterN directory.
   // This is not a constant-time lookup.  If you need something faster, see AlignmentMonitorMuonHIP, which has a
   // dynamically-allocated array of TH1F*s.
   std::vector<Alignable*> alignables = pStore()->alignables();
   for (std::vector<Alignable*>::const_iterator it = alignables.begin();  it != alignables.end();  ++it) {
      char name[256], title[256];
      snprintf(name, sizeof(name), "xresid%d", (*it)->geomDetId().rawId());
      snprintf(title, sizeof(title), "x track-hit for DetId %d", (*it)->geomDetId().rawId());

      m_residuals[*it] = book1D("/iterN/", name, title, 100, -5., 5.);
   }

   // Important: you create TObject pointers with the "new" operator, but YOU don't delete them.  They're deleted by the
   // base class, which knows when they are no longer needed (based on whether they are in the /iterN/ directory or not).

   // For more detail, see the twiki page:
   // https://twiki.cern.ch/twiki/bin/view/CMS/SWGuideAlignmentMonitors    for creating a plugin like this one
   // https://twiki.cern.ch/twiki/bin/view/CMS/SWGuideAlignmentAlgorithms#Monitoring    for configuring it
}

void AlignmentMonitorTemplate::event	(	const edm::Event &	iEvent,
		const edm::EventSetup &	iSetup,
		const ConstTrajTrackPairCollection &	iTrajTracks
	)		`[virtual]`

Called for each event (by "run()"): may be reimplemented.

Reimplemented from AlignmentMonitorBase.

Definition at line 82 of file AlignmentMonitorTemplate.cc.

References AlignableNavigator::alignableFromDetId(), TrajectoryMeasurement::backwardPredictedState(), TrajectoryStateCombiner::combine(), AlignableNavigator::detAndSubdetInMap(), TrajectoryMeasurement::forwardPredictedState(), TrackingRecHit::geographicalId(), TrackingRecHit::isValid(), AlignmentMonitorBase::iteration(), TrackingRecHit::localPosition(), TrajectoryStateOnSurface::localPosition(), m_hist, m_ihist, m_residuals, Trajectory::measurements(), Alignable::mother(), AlignmentMonitorBase::pNavigator(), TrajectoryMeasurement::recHit(), electronDataDiscovery::search(), and PV3DBase< T, PVType, FrameType >::x().

                                                                                                                                    {
   m_hist->Fill(iteration());  // get the number of events per iteration
   m_ihist->Fill(0.5);         // get the number of events in this iteration in the central bin

  TrajectoryStateCombiner tsoscomb;

  // This is a procedure that loops over tracks/hits, calculates residuals, and fills the appropriate histogram.
   for (ConstTrajTrackPairCollection::const_iterator it = tracks.begin();  it != tracks.end();  ++it) {
      const Trajectory* traj = it->first;
//      const reco::Track* track = it->second;
      // If your tracks are refit using the producer in RecoTracker, you'll get updated reco::Track objects with
      // each iteration, and it makes sense to make plots using these.
      // If your tracks are refit using TrackingTools/TrackRefitter, only the Trajectories will be updated.
      // We're working on that.  I'll try to remember to change this comment when the update is ready.

      std::vector<TrajectoryMeasurement> measurements = traj->measurements();
      for (std::vector<TrajectoryMeasurement>::const_iterator im = measurements.begin();  im != measurements.end();  ++im) {
         const TrajectoryMeasurement meas = *im;
         const TransientTrackingRecHit* hit = &(*meas.recHit());
         const DetId id = hit->geographicalId();

         if (hit->isValid()  &&  pNavigator()->detAndSubdetInMap(id)) {
            // Combine the forward-propagated state with the backward-propagated state to get a minimally-biased residual.
            // This is the same procedure that is used to calculate residuals in the HIP algorithm
            TrajectoryStateOnSurface tsosc = tsoscomb.combine(meas.forwardPredictedState(), meas.backwardPredictedState());

            // Search for our histogram using the Alignable* -> TH1F* map
            // The "alignable = alignable->mother()" part ascends the alignable tree, because hits are on the lowest-level
            // while our histograms may be associated with higher-level Alignables.
            Alignable *alignable = pNavigator()->alignableFromDetId(id);
            std::map<Alignable*, TH1F*>::const_iterator search = m_residuals.find(alignable);
            while (search == m_residuals.end()  &&  (alignable = alignable->mother())) search = m_residuals.find(alignable);

            if (search != m_residuals.end()) {
               search->second->Fill(tsosc.localPosition().x() - hit->localPosition().x());
            }
         } // end if hit is valid
      } // end loop over hits
   } // end loop over tracks/trajectories
}