MuDetRing Class Reference

#include <MuDetRing.h>

Inheritance diagram for MuDetRing:

Public Member Functions
virtual std::pair< bool, TrajectoryStateOnSurface >	compatible (const TrajectoryStateOnSurface &ts, const Propagator &prop, const MeasurementEstimator &est) const
virtual std::vector< DetWithState >	compatibleDets (const TrajectoryStateOnSurface &startingState, const Propagator &prop, const MeasurementEstimator &est) const
virtual const std::vector < const GeometricSearchDet * > &	components () const
	Returns basic components, if any. More...
virtual std::vector< DetGroup >	groupedCompatibleDets (const TrajectoryStateOnSurface &startingState, const Propagator &prop, const MeasurementEstimator &est) const
virtual bool	hasGroups () const
	MuDetRing (std::vector< const GeomDet * >::const_iterator first, std::vector< const GeomDet * >::const_iterator last)
	Construct from iterators on GeomDet*. More...
	MuDetRing (const std::vector< const GeomDet * > &dets)
	Construct from a vector of GeomDet*. More...
virtual	~MuDetRing ()
Public Member Functions inherited from ForwardDetRingOneZ
virtual const std::vector < const GeomDet * > &	basicComponents () const
	ForwardDetRingOneZ ()
	Dummy constructor. More...
	ForwardDetRingOneZ (std::vector< const GeomDet * >::const_iterator first, std::vector< const GeomDet * >::const_iterator last)
	Construct from iterators on Det*. More...
	ForwardDetRingOneZ (const std::vector< const GeomDet * > &dets)
virtual	~ForwardDetRingOneZ ()
Public Member Functions inherited from ForwardDetRing
virtual void	compatibleDetsV (const TrajectoryStateOnSurface &startingState, const Propagator &prop, const MeasurementEstimator &est, std::vector< DetWithState > &result) const
const BoundDisk &	specificSurface () const
	Return the ring surface as a BoundDisk. More...
virtual const BoundSurface &	surface () const GCC11_FINAL
	The surface of the GeometricSearchDet. More...
virtual	~ForwardDetRing ()
Public Member Functions inherited from GeometricSearchDet
	GeometricSearchDet ()
virtual void	groupedCompatibleDetsV (const TrajectoryStateOnSurface &startingState, const Propagator &prop, const MeasurementEstimator &est, std::vector< DetGroup > &result) const
virtual const Surface::PositionType &	position () const
	Returns position of the surface. More...
virtual	~GeometricSearchDet ()

Private Types
typedef PeriodicBinFinderInPhi < float >	BinFinderType

Private Member Functions
void	init ()

Private Attributes
BinFinderType	theBinFinder

Additional Inherited Members
Public Types inherited from GeometricSearchDet
typedef std::pair< const GeomDet *, TrajectoryStateOnSurface >	DetWithState
typedef BoundSurface::PositionType	PositionType
typedef BoundSurface::RotationType	RotationType
typedef TrajectoryStateOnSurface	TrajectoryState
Protected Member Functions inherited from ForwardDetRingOneZ
bool	add (int idet, std::vector< DetWithState > &result, const TrajectoryStateOnSurface &tsos, const Propagator &prop, const MeasurementEstimator &est) const
Protected Member Functions inherited from ForwardDetRing
void	setDisk (BoundDisk *disk)
	Set the rod's disk. More...
Protected Attributes inherited from GeometricSearchDet
GeomDetCompatibilityChecker	theCompatibilityChecker

Detailed Description

A ring of periodic, possibly overlapping vertical detectors. Designed for forward muon CSC/RPC chambers.

Date:

2006/06/02 15:19:39

Revision:

1.4

Author

N. Amapane - INFN Torino

Definition at line 18 of file MuDetRing.h.

Member Typedef Documentation

typedef PeriodicBinFinderInPhi<float> MuDetRing::BinFinderType

private

Definition at line 54 of file MuDetRing.h.

Constructor & Destructor Documentation

MuDetRing::MuDetRing	(	std::vector< const GeomDet * >::const_iterator	first,
		std::vector< const GeomDet * >::const_iterator	last
	)

Construct from iterators on GeomDet*.

Definition at line 19 of file MuDetRing.cc.

References init().

                                                        : 
  ForwardDetRingOneZ(first,last) 
{
  init();
}

MuDetRing::MuDetRing

(

const std::vector< const GeomDet * > &

dets

)

Construct from a vector of GeomDet*.

Definition at line 27 of file MuDetRing.cc.

References init().

                                                        : 
  ForwardDetRingOneZ(vdets) 
{
  init();
}

MuDetRing::~MuDetRing ( )

virtual

Definition at line 40 of file MuDetRing.cc.

{}

Member Function Documentation

pair< bool, TrajectoryStateOnSurface > MuDetRing::compatible ( const TrajectoryStateOnSurface &  ts, const Propagator &  , const MeasurementEstimator &    ) const

virtual

tests the geometrical compatibility of the Det with the predicted state. The FreeTrajectoryState argument is propagated to the Det surface using the Propagator argument. The resulting TrajectoryStateOnSurface is tested for compatibility with the surface bounds. If compatible, a std::pair< true, propagatedState> is returned. If the propagation fails, or if the state is not compatible, a std::pair< false, propagatedState> is returned.

Implements GeometricSearchDet.

Definition at line 53 of file MuDetRing.cc.

References MeasurementEstimator::estimate(), TrajectoryStateOnSurface::globalPosition(), TrajectoryStateOnSurface::isValid(), TrajectoryStateOnSurface::localPosition(), LogTrace, metname, PV3DBase< T, PVType, FrameType >::perp(), Propagator::propagate(), ForwardDetRing::specificSurface(), AlCaHLTBitMon_QueryRunRegistry::string, and PV3DBase< T, PVType, FrameType >::z().

Referenced by compatibleDets().

                                                     {
  
  const std::string metname = "Muon|RecoMuon|RecoMuonDetLayers|MuDetRing";
  TrajectoryStateOnSurface ms = prop.propagate(ts,specificSurface());
  
  LogTrace(metname) << "MuDetRing::compatible, Surface at Z: " 
                    << specificSurface().position().z()
                    << " R1: " << specificSurface().innerRadius()
                    << " R2: " << specificSurface().outerRadius()
                    << " TS   at Z,R: " << ts.globalPosition().z() << ","
                    << ts.globalPosition().perp();
  if (ms.isValid()) {
    LogTrace(metname) << " DEST at Z,R: " << ms.globalPosition().z() << ","
              << ms.globalPosition().perp()
              << " local Z: "   << ms.localPosition().z()  << endl;
  }
  else
    LogTrace(metname) << " DEST: not valid" <<endl;
  
  
  if (ms.isValid()) return make_pair(est.estimate(ms, specificSurface()) != 0, ms);
  else return make_pair(false, ms);
}

vector< GeometricSearchDet::DetWithState > MuDetRing::compatibleDets ( const TrajectoryStateOnSurface &  startingState, const Propagator &  prop, const MeasurementEstimator &  est  ) const

virtual

Returns all Dets compatible with a trajectory state according to the estimator est. The startingState should be propagated to the surface of each compatible Det using the Propagator passed as an argument. The default implementation should be overridden in dets with specific surface types to avoid propagation to a generic Surface

Reimplemented from GeometricSearchDet.

Definition at line 80 of file MuDetRing.cc.

References ForwardDetRingOneZ::add(), ForwardDetRingOneZ::basicComponents(), PeriodicBinFinderInPhi< T >::binIndex(), compatible(), TrajectoryStateOnSurface::globalPosition(), LogTrace, metname, PV3DBase< T, PVType, FrameType >::perp(), PV3DBase< T, PVType, FrameType >::phi(), GeometricSearchDet::position(), GloballyPositioned< T >::position(), query::result, ForwardDetRing::specificSurface(), mathSSE::sqrt(), AlCaHLTBitMon_QueryRunRegistry::string, ForwardDetRing::surface(), theBinFinder, and PV3DBase< T, PVType, FrameType >::z().

                                                      {

  const std::string metname = "Muon|RecoMuon|RecoMuonDetLayers|MuDetRing";

  LogTrace(metname) << "MuDetRing::compatibleDets, Surface at Z: " 
                    << surface().position().z()
                    << " R1: " << specificSurface().innerRadius()
                    << " R2: " << specificSurface().outerRadius()
                    << " TS at Z,R: " << startingState.globalPosition().z() << ","
                    << startingState.globalPosition().perp() << "     DetRing pos." << position();

  vector<DetWithState> result;

  // Propagate and check that the result is within bounds
  pair<bool, TrajectoryStateOnSurface> compat =
    compatible(startingState, prop, est);
  if (!compat.first) {
    LogTrace(metname) << "    MuDetRing::compatibleDets: not compatible"
                      << "    (should not have been selected!)";
    return result;
  }
  
  // Find the most probable destination component
  TrajectoryStateOnSurface& tsos = compat.second;
  GlobalPoint startPos = tsos.globalPosition();  
  int closest = theBinFinder.binIndex(startPos.phi());
  const vector<const GeomDet*> dets = basicComponents();
  LogTrace(metname) << "     MuDetRing::compatibleDets, closest det: " << closest 
                    << " Phi: " << dets[closest]->surface().position().phi()
                    << " impactPhi " << startPos.phi();

  // Add this detector, if it is compatible
  // NOTE: add performs a null propagation
  add(closest, result, tsos, prop, est);

  int nclosest = result.size(); int nnextdet=0; // MDEBUG counters

  // Try the neighbors on each side until no more compatible.
  float dphi=0;
  if (!result.empty()) { // If closest is not compatible the next cannot be either
    float nSigmas = 3.;
    if (result.back().second.hasError()) {
      dphi = nSigmas*      
        atan(sqrt(result.back().second.localError().positionError().xx())/
             result.back().second.globalPosition().perp());
    }  
  } else {
    LogTrace(metname) << "     MuDetRing::compatibleDets, closest not compatible!";
    //FIXME:  if closest is not compatible the next cannot be either
  }
  
  for (int idet=closest+1; idet < closest+int(dets.size())/4+1; idet++){
    // FIXME: should use dphi to decide if det must be queried.
    // Right now query until not compatible.
    int idetp = theBinFinder.binIndex(idet);
    {
      LogTrace(metname) << "     next det:" << idetp
                        << " at Z: " << dets[idetp]->position().z()
                        << " phi: " << dets[idetp]->position().phi()
                        << " FTS phi " << startPos.phi()
                        << " max dphi " << dphi;
      nnextdet++;      
      if ( !add(idetp, result, tsos, prop, est)) break;
    }
  }
  
  for (int idet=closest-1; idet > closest-int(dets.size())/4-1; idet--){
    // FIXME: should use dphi to decide if det must be queried.
    // Right now query until not compatible.
    int idetp = theBinFinder.binIndex(idet);
    {
      LogTrace(metname) << "     previous det:" << idetp << " " << idet << " " << closest-dets.size()/4-1
                        << " at Z: " << dets[idetp]->position().z()
                        << " phi: " << dets[idetp]->position().phi()
                        << " FTS phi " << startPos.phi()
                        << " max dphi" << dphi;
      nnextdet++;
      if ( !add(idetp, result, tsos, prop, est)) break;
    }
  }
  
  LogTrace(metname) << "     MuDetRing::compatibleDets, size: " << result.size()
                    << " on closest: " << nclosest << " # checked dets: " << nnextdet+1;

  if (result.size()==0) {
    LogTrace(metname) << "   ***Ring not compatible,should have been discarded before!!!";
  }
  
  return result;
}

const vector< const GeometricSearchDet * > & MuDetRing::components ( ) const

virtual

Returns basic components, if any.

Returns direct components, if any

Implements GeometricSearchDet.

Definition at line 44 of file MuDetRing.cc.

References gather_cfg::cout, and query::result.

                            {
  // FIXME dummy impl.
  cout << "temporary dummy implementation of MuDetRing::components()!!" << endl;
  static vector<const GeometricSearchDet*> result;
  return result;
}

vector< DetGroup > MuDetRing::groupedCompatibleDets ( const TrajectoryStateOnSurface &  startingState, const Propagator &  prop, const MeasurementEstimator &  est  ) const

virtual

Similar to compatibleDets(), but the compatible Dets are grouped in one or more groups. Dets are put in the same group if they are mutually exclusive for track crossing, i.e. a reconstructible track cannot cross more than one Det from a group. Pathological tracks (spirals etc.) can of course violate this rule.
The DetGroups are sorted in the sequence of crossing by a track. In order to define the direction of crossing the Propagator used in this method should have a defined direction() : either "alongMomentum" or "oppositeToMomentum" but not "anyDirection".
The three signatures of this method differ by the input trajectory state arguments: the starting state can be a TrajectoryStateOnSurface or a FreeTrajectoryState, and the state on this CompositeDet may be already known or not. The last two arguments are as for the method compatibleDets().
First signature: The first argument is a TrajectoryStateOnSurface, usually not on the surface of this CompositeDet.

Reimplemented from GeometricSearchDet.

Definition at line 175 of file MuDetRing.cc.

References gather_cfg::cout, and query::result.

                                                         {
  // FIXME should be implemented to allow returning  overlapping chambers
  // as separate groups!
  cout << "dummy implementation of MuDetRod::groupedCompatibleDets()" << endl;
  vector<DetGroup> result;
  return result;
}

virtual bool MuDetRing::hasGroups ( ) const

inlinevirtual

Implements GeometricSearchDet.

Definition at line 51 of file MuDetRing.h.

{return false;}

void MuDetRing::init ( void  )

private

Definition at line 34 of file MuDetRing.cc.

References ForwardDetRingOneZ::basicComponents(), prof2calltree::front, phi, GeometricSearchDet::position(), findQualityFiles::size, and theBinFinder.

Referenced by MuDetRing().

{
  theBinFinder = BinFinderType(basicComponents().front()->position().phi(),
                   basicComponents().size());  
}

Member Data Documentation

BinFinderType MuDetRing::theBinFinder

private

Definition at line 55 of file MuDetRing.h.

Referenced by compatibleDets(), and init().