/* $Id$ */
////////////////////////////////////
-//
-// Virtual MUON track reconstructor in ALICE (class renamed from AliMUONEventReconstructor)
-//
-// This class contains as data:
-// * a pointer to the array of hits to be reconstructed (the event)
-// * a pointer to the array of segments made with these hits inside each station
-// * a pointer to the array of reconstructed tracks
-//
-// It contains as methods, among others:
-// * EventReconstruct to build the muon tracks
-// * EventReconstructTrigger to build the trigger tracks
-//
+///
+/// \class AliMUONVTrackReconstructor
+/// Virtual MUON track reconstructor in ALICE (class renamed from AliMUONEventReconstructor)
+///
+/// This class contains as data:
+/// * a pointer to the array of hits to be reconstructed (the event)
+/// * a pointer to the array of segments made with these hits inside each station
+/// * a pointer to the array of reconstructed tracks
+///
+/// It contains as methods, among others:
+/// * EventReconstruct to build the muon tracks
+/// * EventReconstructTrigger to build the trigger tracks
+///
+/// \author Philippe Pillot
+///
////////////////////////////////////
-#include <stdlib.h>
-#include <Riostream.h>
-#include <TTree.h>
-
#include "AliMUONVTrackReconstructor.h"
#include "AliMUONData.h"
#include "AliMUONConstants.h"
#include "AliMUONHitForRec.h"
+#include "AliMUONObjectPair.h"
#include "AliMUONTriggerTrack.h"
#include "AliMUONTriggerCircuit.h"
#include "AliMUONLocalTrigger.h"
#include "AliMUONGlobalTrigger.h"
-#include "AliMUONSegment.h"
#include "AliMUONTrack.h"
#include "AliMUONTrackParam.h"
#include "AliMUONTrackExtrap.h"
-#include "AliMagF.h"
+
#include "AliLog.h"
#include "AliTracker.h"
+#include <Riostream.h>
+#include <TClonesArray.h>
+#include <TMath.h>
+
+/// \cond CLASSIMP
ClassImp(AliMUONVTrackReconstructor) // Class implementation in ROOT context
+/// \endcond
//************* Defaults parameters for reconstruction
const Double_t AliMUONVTrackReconstructor::fgkDefaultMinBendingMomentum = 3.0;
const Double_t AliMUONVTrackReconstructor::fgkDefaultMaxBendingMomentum = 3000.0;
const Double_t AliMUONVTrackReconstructor::fgkDefaultBendingResolution = 0.01;
const Double_t AliMUONVTrackReconstructor::fgkDefaultNonBendingResolution = 0.144;
-const Double_t AliMUONVTrackReconstructor::fgkDefaultMaxSigma2Distance = 16.0;
-// Simple magnetic field:
-// Value taken from macro MUONtracking.C: 0.7 T, hence 7 kG
-// Length and Position from reco_muon.F, with opposite sign:
-// Length = ZMAGEND-ZCOIL
-// Position = (ZMAGEND+ZCOIL)/2
-// to be ajusted differently from real magnetic field ????
-const Double_t AliMUONVTrackReconstructor::fgkDefaultSimpleBValue = 7.0;
-const Double_t AliMUONVTrackReconstructor::fgkDefaultSimpleBLength = 428.0;
-const Double_t AliMUONVTrackReconstructor::fgkDefaultSimpleBPosition = 1019.0;
+const Double_t AliMUONVTrackReconstructor::fgkDefaultBendingVertexDispersion = 10.;
+const Double_t AliMUONVTrackReconstructor::fgkDefaultNonBendingVertexDispersion = 10.;
+const Double_t AliMUONVTrackReconstructor::fgkDefaultMaxNormChi2MatchTrigger = 16.0;
//__________________________________________________________________________
AliMUONVTrackReconstructor::AliMUONVTrackReconstructor(AliMUONData* data)
fMaxBendingMomentum(fgkDefaultMaxBendingMomentum),
fBendingResolution(fgkDefaultBendingResolution),
fNonBendingResolution(fgkDefaultNonBendingResolution),
- fMaxSigma2Distance(fgkDefaultMaxSigma2Distance),
- fChamberThicknessInX0(AliMUONConstants::DefaultChamberThicknessInX0()),
- fSimpleBValue(fgkDefaultSimpleBValue),
- fSimpleBLength(fgkDefaultSimpleBLength),
- fSimpleBPosition(fgkDefaultSimpleBPosition),
- fSegmentMaxDistBending(0x0),
- fSegmentMaxDistNonBending(0x0),
+ fBendingVertexDispersion(fgkDefaultBendingVertexDispersion),
+ fNonBendingVertexDispersion(fgkDefaultNonBendingVertexDispersion),
+ fMaxNormChi2MatchTrigger(fgkDefaultMaxNormChi2MatchTrigger),
fHitsForRecPtr(0x0),
fNHitsForRec(0),
fNHitsForRecPerChamber(0x0),
fIndexOfFirstHitForRecPerChamber(0x0),
- fSegmentsPtr(0x0),
- fNSegments(0x0),
fRecTracksPtr(0x0),
fNRecTracks(0),
fMUONData(data),
fTriggerCircuit(0x0)
{
/// Constructor for class AliMUONVTrackReconstructor
- fSegmentMaxDistBending = new Double_t[AliMUONConstants::NTrackingSt()];
- fSegmentMaxDistNonBending = new Double_t[AliMUONConstants::NTrackingSt()];
fNHitsForRecPerChamber = new Int_t[AliMUONConstants::NTrackingCh()];
fIndexOfFirstHitForRecPerChamber = new Int_t[AliMUONConstants::NTrackingCh()];
- SetReconstructionParametersToDefaults();
-
// Memory allocation for the TClonesArray of hits for reconstruction
// Is 10000 the right size ????
fHitsForRecPtr = new TClonesArray("AliMUONHitForRec", 10000);
- // Memory allocation for the TClonesArray's of segments in stations
- // Is 2000 the right size ????
- fSegmentsPtr = new TClonesArray*[AliMUONConstants::NTrackingSt()];
- fNSegments = new Int_t[AliMUONConstants::NTrackingSt()];
- for (Int_t st = 0; st < AliMUONConstants::NTrackingSt(); st++) {
- fSegmentsPtr[st] = new TClonesArray("AliMUONSegment", 2000);
- fNSegments[st] = 0; // really needed or GetEntriesFast sufficient ????
- }
-
+ // set the magnetic field for track extrapolations
const AliMagF* kField = AliTracker::GetFieldMap();
if (!kField) AliFatal("No field available");
- // Sign of fSimpleBValue according to sign of Bx value at (50,50,-950).
- Float_t b[3], x[3];
- x[0] = 50.; x[1] = 50.; x[2] = -950.;
- kField->Field(x,b);
-
- fSimpleBValue = TMath::Sign(fSimpleBValue,(Double_t) b[0]);
- fSimpleBPosition = TMath::Sign(fSimpleBPosition,(Double_t) x[2]);
- // See how to get fSimple(BValue, BLength, BPosition)
- // automatically calculated from the actual magnetic field ????
-
- // set the magnetic field for track extrapolations
AliMUONTrackExtrap::SetField(kField);
}
AliMUONVTrackReconstructor::~AliMUONVTrackReconstructor(void)
{
/// Destructor for class AliMUONVTrackReconstructor
- delete [] fSegmentMaxDistBending;
- delete [] fSegmentMaxDistNonBending;
delete [] fNHitsForRecPerChamber;
delete [] fIndexOfFirstHitForRecPerChamber;
delete fTriggerTrack;
delete fHitsForRecPtr;
- // Correct destruction of everything ????
- for (Int_t st = 0; st < AliMUONConstants::NTrackingSt(); st++) delete fSegmentsPtr[st];
- delete [] fSegmentsPtr;
- delete [] fNSegments;
-}
-
- //__________________________________________________________________________
-void AliMUONVTrackReconstructor::SetReconstructionParametersToDefaults(void)
-{
- /// Set reconstruction parameters for making segments to default values
- // Would be much more convenient with a structure (or class) ????
-
- // ******** Parameters for making segments
- // should be parametrized ????
- // according to interval between chambers in a station ????
- // Maximum distance in non bending plane
- // 5 * 0.22 just to remember the way it was made in TRACKF_STAT
- // SIGCUT*DYMAX(IZ)
- for (Int_t st = 0; st < AliMUONConstants::NTrackingCh()/2; st++)
- fSegmentMaxDistNonBending[st] = 5. * 0.22;
- // Maximum distance in bending plane:
- // values from TRACKF_STAT, corresponding to (J psi 20cm),
- // scaled to the real distance between chambers in a station
- fSegmentMaxDistBending[0] = TMath::Abs( 1.5 *
- (AliMUONConstants::DefaultChamberZ(1) - AliMUONConstants::DefaultChamberZ(0)) / 20.0);
- fSegmentMaxDistBending[1] = TMath::Abs( 1.5 *
- (AliMUONConstants::DefaultChamberZ(3) - AliMUONConstants::DefaultChamberZ(2)) / 20.0);
- fSegmentMaxDistBending[2] = TMath::Abs( 3.0 *
- (AliMUONConstants::DefaultChamberZ(5) - AliMUONConstants::DefaultChamberZ(4)) / 20.0);
- fSegmentMaxDistBending[3] = TMath::Abs( 6.0 *
- (AliMUONConstants::DefaultChamberZ(7) - AliMUONConstants::DefaultChamberZ(6)) / 20.0);
- fSegmentMaxDistBending[4] = TMath::Abs( 6.0 *
- (AliMUONConstants::DefaultChamberZ(9) - AliMUONConstants::DefaultChamberZ(8)) / 20.0);
-
- return;
}
//__________________________________________________________________________
void AliMUONVTrackReconstructor::EventReconstruct(void)
{
- // To reconstruct one event
+ /// To reconstruct one event
AliDebug(1,"Enter EventReconstruct");
+
ResetTracks(); //AZ
- ResetSegments(); //AZ
ResetHitsForRec(); //AZ
AddHitsForRecFromRawClusters();
- MakeSegments();
MakeTracks();
if (fMUONData->IsTriggerTrackBranchesInTree())
ValidateTracksWithTrigger();
return;
}
- //__________________________________________________________________________
-void AliMUONVTrackReconstructor::ResetSegments(void)
-{
- /// To reset the TClonesArray of segments and the number of Segments for all stations
- for (Int_t st = 0; st < AliMUONConstants::NTrackingCh()/2; st++) {
- if (fSegmentsPtr[st]) fSegmentsPtr[st]->Clear();
- fNSegments[st] = 0;
- }
- return;
-}
-
//__________________________________________________________________________
void AliMUONVTrackReconstructor::ResetHitsForRec(void)
{
}
//__________________________________________________________________________
-void AliMUONVTrackReconstructor::MakeSegmentsPerStation(Int_t Station)
+TClonesArray* AliMUONVTrackReconstructor::MakeSegmentsInStation(Int_t station)
{
- /// To make the list of segments in station number "Station" (0...)
- /// from the list of hits to be reconstructed.
- /// Updates "fNSegments"[Station].
- /// Segments in stations 4 and 5 are sorted
- /// according to increasing absolute value of "impact parameter"
+ /// To make the list of segments in station(0..) "Station" from the list of hits to be reconstructed.
+ /// Return a new TClonesArray of segments.
+ /// It is the responsibility of the user to delete it afterward.
+ AliDebug(1,Form("Enter MakeSegmentsPerStation (0...) %d",station));
+
AliMUONHitForRec *hit1Ptr, *hit2Ptr;
- AliMUONSegment *segment;
- Bool_t last2st;
- Double_t bendingSlope, distBend, distNonBend, extBendCoor, extNonBendCoor,
- impactParam = 0., maxImpactParam = 0., minImpactParam = 0.; // =0 to avoid compilation warnings.
- AliDebug(1,Form("Enter MakeSegmentsPerStation (0...) %d",Station));
+ AliMUONObjectPair *segment;
+ Double_t bendingSlope = 0, impactParam = 0., bendingMomentum = 0.; // to avoid compilation warning
// first and second chambers (0...) in the station
- Int_t ch1 = 2 * Station;
+ Int_t ch1 = 2 * station;
Int_t ch2 = ch1 + 1;
- // variable true for stations downstream of the dipole:
- // Station(0..4) equal to 3 or 4
- if ((Station == 3) || (Station == 4)) {
- last2st = kTRUE;
- // maximum impact parameter (cm) according to fMinBendingMomentum...
- maxImpactParam =
- TMath::Abs(GetImpactParamFromBendingMomentum(fMinBendingMomentum));
- // minimum impact parameter (cm) according to fMaxBendingMomentum...
- minImpactParam =
- TMath::Abs(GetImpactParamFromBendingMomentum(fMaxBendingMomentum));
- }
- else last2st = kFALSE;
- // extrapolation factor from Z of first chamber to Z of second chamber
- // dZ to be changed to take into account fine structure of chambers ????
- Double_t extrapFact;
- // index for current segment
- Int_t segmentIndex = 0;
- // Loop over HitsForRec in the first chamber of the station
+ // list of segments
+ TClonesArray *segments = new TClonesArray("AliMUONObjectPair", fNHitsForRecPerChamber[ch2]);
+ // Loop over HitForRec's in the first chamber of the station
for (Int_t hit1 = fIndexOfFirstHitForRecPerChamber[ch1];
hit1 < fIndexOfFirstHitForRecPerChamber[ch1] + fNHitsForRecPerChamber[ch1];
hit1++) {
// pointer to the HitForRec
hit1Ptr = (AliMUONHitForRec*) ((*fHitsForRecPtr)[hit1]);
- // extrapolation,
- // on the straight line joining the HitForRec to the vertex (0,0,0),
- // to the Z of the second chamber of the station
- // Loop over HitsForRec in the second chamber of the station
+ // Loop over HitsForRec's in the second chamber of the station
for (Int_t hit2 = fIndexOfFirstHitForRecPerChamber[ch2];
hit2 < fIndexOfFirstHitForRecPerChamber[ch2] + fNHitsForRecPerChamber[ch2];
hit2++) {
// pointer to the HitForRec
hit2Ptr = (AliMUONHitForRec*) ((*fHitsForRecPtr)[hit2]);
- // absolute values of distances, in bending and non bending planes,
- // between the HitForRec in the second chamber
- // and the previous extrapolation
- extrapFact = hit2Ptr->GetZ()/ hit1Ptr->GetZ();
- extBendCoor = extrapFact * hit1Ptr->GetBendingCoor();
- extNonBendCoor = extrapFact * hit1Ptr->GetNonBendingCoor();
- distBend = TMath::Abs(hit2Ptr->GetBendingCoor() - extBendCoor);
- distNonBend = TMath::Abs(hit2Ptr->GetNonBendingCoor() - extNonBendCoor);
- if (last2st) {
- // bending slope
- if ( hit1Ptr->GetZ() - hit2Ptr->GetZ() != 0.0 ) {
- bendingSlope = (hit1Ptr->GetBendingCoor() - hit2Ptr->GetBendingCoor()) /
- (hit1Ptr->GetZ() - hit2Ptr->GetZ());
- // absolute value of impact parameter
- impactParam =
- TMath::Abs(hit1Ptr->GetBendingCoor() - hit1Ptr->GetZ() * bendingSlope);
- }
- else {
- AliWarning("hit1Ptr->GetZ() = hit2Ptr->GetZ(): impactParam set to maxImpactParam");
- impactParam = maxImpactParam;
- }
- }
- // check for distances not too large,
- // and impact parameter not too big if stations downstream of the dipole.
- // Conditions "distBend" and "impactParam" correlated for these stations ????
- if ((distBend < fSegmentMaxDistBending[Station]) &&
- (distNonBend < fSegmentMaxDistNonBending[Station]) &&
- (!last2st || (impactParam < maxImpactParam)) &&
- (!last2st || (impactParam > minImpactParam))) {
+ if ( hit1Ptr->GetZ() - hit2Ptr->GetZ() != 0. ) {
+ // bending slope
+ bendingSlope = (hit1Ptr->GetBendingCoor() - hit2Ptr->GetBendingCoor()) / (hit1Ptr->GetZ() - hit2Ptr->GetZ());
+ // impact parameter
+ impactParam = hit1Ptr->GetBendingCoor() - hit1Ptr->GetZ() * bendingSlope;
+ // absolute value of bending momentum
+ bendingMomentum = TMath::Abs(AliMUONTrackExtrap::GetBendingMomentumFromImpactParam(impactParam));
+ } else {
+ AliWarning("hit1Ptr->GetZ() = hit2Ptr->GetZ(): no segment created");
+ continue;
+ }
+ // check for bending momentum within tolerances
+ if ((bendingMomentum < fMaxBendingMomentum) && (bendingMomentum > fMinBendingMomentum)) {
// make new segment
- segment = new ((*fSegmentsPtr[Station])[segmentIndex])
- AliMUONSegment(hit1Ptr, hit2Ptr);
- // update "link" to this segment from the hit in the first chamber
- if (hit1Ptr->GetNSegments() == 0)
- hit1Ptr->SetIndexOfFirstSegment(segmentIndex);
- hit1Ptr->SetNSegments(hit1Ptr->GetNSegments() + 1);
+ segment = new ((*segments)[segments->GetLast()+1]) AliMUONObjectPair(hit1Ptr, hit2Ptr, kFALSE, kFALSE);
if (AliLog::GetGlobalDebugLevel() > 1) {
- cout << "segmentIndex(0...): " << segmentIndex
- << " distBend: " << distBend
- << " distNonBend: " << distNonBend
- << endl;
+ cout << "segmentIndex(0...): " << segments->GetLast() << endl;
segment->Dump();
cout << "HitForRec in first chamber" << endl;
hit1Ptr->Dump();
cout << "HitForRec in second chamber" << endl;
hit2Ptr->Dump();
- };
- // increment index for current segment
- segmentIndex++;
+ }
}
} //for (Int_t hit2
} // for (Int_t hit1...
- fNSegments[Station] = segmentIndex;
- // Sorting according to "impact parameter" if station(1..5) 4 or 5,
- // i.e. Station(0..4) 3 or 4, using the function "Compare".
- // After this sorting, it is impossible to use
- // the "fNSegments" and "fIndexOfFirstSegment"
- // of the HitForRec in the first chamber to explore all segments formed with it.
- // Is this sorting really needed ????
- if ((Station == 3) || (Station == 4)) (fSegmentsPtr[Station])->Sort();
- AliDebug(1,Form("Station: %d NSegments: %d ", Station, fNSegments[Station]));
- return;
-}
-
- //__________________________________________________________________________
-Double_t AliMUONVTrackReconstructor::GetImpactParamFromBendingMomentum(Double_t BendingMomentum) const
-{
- /// Returns impact parameter at vertex in bending plane (cm),
- /// from the signed bending momentum "BendingMomentum" in bending plane (GeV/c),
- /// using simple values for dipole magnetic field.
- /// The sign of "BendingMomentum" is the sign of the charge.
- return (-0.0003 * fSimpleBValue * fSimpleBLength * fSimpleBPosition /
- BendingMomentum);
-}
-
- //__________________________________________________________________________
-Double_t AliMUONVTrackReconstructor::GetBendingMomentumFromImpactParam(Double_t ImpactParam) const
-{
- /// Returns signed bending momentum in bending plane (GeV/c),
- /// the sign being the sign of the charge for particles moving forward in Z,
- /// from the impact parameter "ImpactParam" at vertex in bending plane (cm),
- /// using simple values for dipole magnetic field.
- return (-0.0003 * fSimpleBValue * fSimpleBLength * fSimpleBPosition /
- ImpactParam);
+ AliDebug(1,Form("Station: %d NSegments: %d ", station, segments->GetEntriesFast()));
+ return segments;
}
//__________________________________________________________________________
void AliMUONVTrackReconstructor::ValidateTracksWithTrigger(void)
{
/// Try to match track from tracking system with trigger track
+ static const Double_t kDistSigma[3]={1,1,0.02}; // sigma of distributions (trigger-track) X,Y,slopeY
+
AliMUONTrack *track;
AliMUONTrackParam trackParam;
AliMUONTriggerTrack *triggerTrack;
TClonesArray *recTriggerTracks = fMUONData->RecTriggerTracks();
Bool_t matchTrigger;
- Double_t distSigma[3]={1,1,0.02}; // sigma of distributions (trigger-track) X,Y,slopeY
+ Int_t loTrgNum;
Double_t distTriggerTrack[3];
- Double_t chi2MatchTrigger, xTrack, yTrack, ySlopeTrack, dTrigTrackMin2, dTrigTrack2 = 0.;
+ Double_t xTrack, yTrack, ySlopeTrack, chi2MatchTrigger, minChi2MatchTrigger, chi2;
track = (AliMUONTrack*) fRecTracksPtr->First();
while (track) {
matchTrigger = kFALSE;
chi2MatchTrigger = 0.;
-
+ loTrgNum = -1;
+
trackParam = *((AliMUONTrackParam*) (track->GetTrackParamAtHit()->Last()));
AliMUONTrackExtrap::ExtrapToZ(&trackParam, AliMUONConstants::DefaultChamberZ(10)); // extrap to 1st trigger chamber
xTrack = trackParam.GetNonBendingCoor();
yTrack = trackParam.GetBendingCoor();
ySlopeTrack = trackParam.GetBendingSlope();
- dTrigTrackMin2 = 999.;
+ minChi2MatchTrigger = 999.;
triggerTrack = (AliMUONTriggerTrack*) recTriggerTracks->First();
while(triggerTrack){
- distTriggerTrack[0] = (triggerTrack->GetX11()-xTrack)/distSigma[0];
- distTriggerTrack[1] = (triggerTrack->GetY11()-yTrack)/distSigma[1];
- distTriggerTrack[2] = (TMath::Tan(triggerTrack->GetThetay())-ySlopeTrack)/distSigma[2];
- dTrigTrack2 = 0.;
- for (Int_t iVar = 0; iVar < 3; iVar++) dTrigTrack2 += distTriggerTrack[iVar]*distTriggerTrack[iVar];
- if (dTrigTrack2 < dTrigTrackMin2 && dTrigTrack2 < fMaxSigma2Distance) {
- dTrigTrackMin2 = dTrigTrack2;
+ distTriggerTrack[0] = (triggerTrack->GetX11()-xTrack)/kDistSigma[0];
+ distTriggerTrack[1] = (triggerTrack->GetY11()-yTrack)/kDistSigma[1];
+ distTriggerTrack[2] = (TMath::Tan(triggerTrack->GetThetay())-ySlopeTrack)/kDistSigma[2];
+ chi2 = 0.;
+ for (Int_t iVar = 0; iVar < 3; iVar++) chi2 += distTriggerTrack[iVar]*distTriggerTrack[iVar];
+ chi2 /= 3.; // Normalized Chi2: 3 degrees of freedom (X,Y,slopeY)
+ if (chi2 < minChi2MatchTrigger && chi2 < fMaxNormChi2MatchTrigger) {
+ minChi2MatchTrigger = chi2;
matchTrigger = kTRUE;
- chi2MatchTrigger = dTrigTrack2/3.; // Normalized Chi2, 3 variables (X,Y,slopeY)
+ chi2MatchTrigger = chi2;
+ loTrgNum=triggerTrack->GetLoTrgNum();
}
triggerTrack = (AliMUONTriggerTrack*) recTriggerTracks->After(triggerTrack);
}
track->SetMatchTrigger(matchTrigger);
+ track->SetLoTrgNum(loTrgNum);
track->SetChi2MatchTrigger(chi2MatchTrigger);
-
track = (AliMUONTrack*) fRecTracksPtr->After(track);
}
{
// To make the trigger tracks from Local Trigger
AliDebug(1, "Enter MakeTriggerTracks");
-
- Int_t nTRentries;
- UChar_t gloTrigPat;
- TClonesArray *localTrigger;
- TClonesArray *globalTrigger;
- AliMUONLocalTrigger *locTrg;
- AliMUONGlobalTrigger *gloTrg;
-
- TTree* treeR = fMUONData->TreeR();
-
- nTRentries = Int_t(treeR->GetEntries());
-
- treeR->GetEvent(0); // only one entry
-
- if (!(fMUONData->IsTriggerBranchesInTree())) {
- AliWarning(Form("Trigger information is not avalaible, nTRentries = %d not equal to 1",nTRentries));
- return kFALSE;
- }
-
- fMUONData->SetTreeAddress("TC");
- fMUONData->GetTrigger();
+
+ TTree* treeR;
+ UChar_t gloTrigPat;
+ TClonesArray *localTrigger;
+ TClonesArray *globalTrigger;
+ AliMUONLocalTrigger *locTrg;
+ AliMUONGlobalTrigger *gloTrg;
+
+ treeR = fMUONData->TreeR();
+ if (!treeR) {
+ AliWarning("TreeR is not loaded");
+ return kFALSE;
+ }
+
+ fMUONData->SetTreeAddress("TC");
+ fMUONData->GetTrigger();
- // global trigger for trigger pattern
- gloTrigPat = 0;
- globalTrigger = fMUONData->GlobalTrigger();
- gloTrg = (AliMUONGlobalTrigger*)globalTrigger->UncheckedAt(0);
+ // global trigger for trigger pattern
+ gloTrigPat = 0;
+ globalTrigger = fMUONData->GlobalTrigger();
+ gloTrg = (AliMUONGlobalTrigger*)globalTrigger->UncheckedAt(0);
+
+ if (gloTrg)
+ gloTrigPat = gloTrg->GetGlobalResponse();
- if (gloTrg)
- gloTrigPat = gloTrg->GetGlobalResponse();
-
- // local trigger for tracking
- localTrigger = fMUONData->LocalTrigger();
- Int_t nlocals = (Int_t) (localTrigger->GetEntries());
+ // local trigger for tracking
+ localTrigger = fMUONData->LocalTrigger();
+ Int_t nlocals = (Int_t) (localTrigger->GetEntries());
- Float_t z11 = AliMUONConstants::DefaultChamberZ(10);
- Float_t z21 = AliMUONConstants::DefaultChamberZ(12);
+ Float_t z11 = AliMUONConstants::DefaultChamberZ(10);
+ Float_t z21 = AliMUONConstants::DefaultChamberZ(12);
- Float_t y11 = 0.;
- Int_t stripX21 = 0;
- Float_t y21 = 0.;
- Float_t x11 = 0.;
+ Float_t y11 = 0.;
+ Int_t stripX21 = 0;
+ Float_t y21 = 0.;
+ Float_t x11 = 0.;
- for (Int_t i=0; i<nlocals; i++) { // loop on Local Trigger
- locTrg = (AliMUONLocalTrigger*)localTrigger->UncheckedAt(i);
+ for (Int_t i=0; i<nlocals; i++) { // loop on Local Trigger
+ locTrg = (AliMUONLocalTrigger*)localTrigger->UncheckedAt(i);
- AliDebug(1, "AliMUONTrackReconstructor::MakeTriggerTrack using NEW trigger \n");
- AliMUONTriggerCircuit* circuit =
- (AliMUONTriggerCircuit*)fTriggerCircuit->At(locTrg->LoCircuit()-1); // -1 !!!
+ AliDebug(1, "AliMUONTrackReconstructor::MakeTriggerTrack using NEW trigger \n");
+ AliMUONTriggerCircuit* circuit =
+ (AliMUONTriggerCircuit*)fTriggerCircuit->At(locTrg->LoCircuit()-1); // -1 !!!
- y11 = circuit->GetY11Pos(locTrg->LoStripX());
- stripX21 = locTrg->LoStripX()+locTrg->LoDev()+1;
- y21 = circuit->GetY21Pos(stripX21);
- x11 = circuit->GetX11Pos(locTrg->LoStripY());
-
- AliDebug(1, Form(" MakeTriggerTrack %d %d %d %d %d %f %f %f \n",i,locTrg->LoCircuit(),
- locTrg->LoStripX(),locTrg->LoStripX()+locTrg->LoDev()+1,locTrg->LoStripY(),y11, y21, x11));
-
- Float_t thetax = TMath::ATan2( x11 , z11 );
- Float_t thetay = TMath::ATan2( (y21-y11) , (z21-z11) );
-
- fTriggerTrack->SetX11(x11);
- fTriggerTrack->SetY11(y11);
- fTriggerTrack->SetThetax(thetax);
- fTriggerTrack->SetThetay(thetay);
- fTriggerTrack->SetGTPattern(gloTrigPat);
-
- fMUONData->AddRecTriggerTrack(*fTriggerTrack);
- } // end of loop on Local Trigger
- return kTRUE;
+ y11 = circuit->GetY11Pos(locTrg->LoStripX());
+ stripX21 = locTrg->LoStripX()+locTrg->LoDev()+1;
+ y21 = circuit->GetY21Pos(stripX21);
+ x11 = circuit->GetX11Pos(locTrg->LoStripY());
+
+ AliDebug(1, Form(" MakeTriggerTrack %d %d %d %d %d %f %f %f \n",i,locTrg->LoCircuit(),
+ locTrg->LoStripX(),locTrg->LoStripX()+locTrg->LoDev()+1,locTrg->LoStripY(),y11, y21, x11));
+
+ Float_t thetax = TMath::ATan2( x11 , z11 );
+ Float_t thetay = TMath::ATan2( (y21-y11) , (z21-z11) );
+
+ fTriggerTrack->SetX11(x11);
+ fTriggerTrack->SetY11(y11);
+ fTriggerTrack->SetThetax(thetax);
+ fTriggerTrack->SetThetay(thetay);
+ fTriggerTrack->SetGTPattern(gloTrigPat);
+ fTriggerTrack->SetLoTrgNum(i);
+
+ fMUONData->AddRecTriggerTrack(*fTriggerTrack);
+ } // end of loop on Local Trigger
+
+ return kTRUE;
}
//__________________________________________________________________________
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff