/// searching for matching trigger tracks and fired strips.
///
/// To each track, a hit pattern for trigger chambers is set.
-/// The hit pattern is a UShort_t with 8 bits used:
-/// <pre>
-/// 1 1 0 1 1 1 0 1
-/// | | |
-/// ----------- ------------
-/// chamber: 11 12 13 14 | 11 12 13 14
-/// cathode: bending | non-bending
-/// </pre>
+///
/// The main method is:
/// * ExecuteValidation
///
#include "AliMUONConstants.h"
#include "AliMUONVDigit.h"
-#include "AliMUONDigitMaker.h"
-#include "AliMUONDigitStoreV1.h"
+#include "AliMUONVDigitStore.h"
#include "AliMUONGeometryTransformer.h"
#include "AliMUONLocalTrigger.h"
-#include "AliMUONLocalTriggerBoard.h"
#include "AliMUONRecoParam.h"
#include "AliMUONTrack.h"
#include "AliMUONTrackExtrap.h"
#include "AliMUONTrackParam.h"
#include "AliMUONVTrackStore.h"
#include "AliMUONVTriggerStore.h"
+#include "AliMUONTriggerTrack.h"
+#include "AliMUONVTriggerTrackStore.h"
+#include "AliMUONTriggerUtilities.h"
+
#include "AliMpPad.h"
#include "AliMpSegmentation.h"
#include "AliMpVSegmentation.h"
#include "AliMpDEManager.h"
-#include "AliMUONReconstructor.h"
-#include "AliMUONTriggerTrack.h"
-#include "AliMUONVTriggerTrackStore.h"
-
+#include "AliMpArea.h"
#include "AliMpConstants.h"
#include "AliLog.h"
-#include "AliTracker.h"
+#include "AliESDMuonTrack.h"
+#include "AliCodeTimer.h"
#include <Riostream.h>
-#include <TArrayS.h>
-#include <TClonesArray.h>
+#include <TArrayI.h>
#include <TMath.h>
#include <TMatrixD.h>
-#include <TROOT.h>
-#include <TDirectory.h>
-#include <TFile.h>
-#include <TSystem.h>
-#include <TVector2.h>
-
-#include <cassert>
+#include <TVector3.h>
+#include <TArrayF.h>
+#include <TRandom.h>
/// \cond CLASSIMP
ClassImp(AliMUONTrackHitPattern) // Class implementation in ROOT context
//______________________________________________________________________________
AliMUONTrackHitPattern::AliMUONTrackHitPattern(const AliMUONRecoParam* recoParam,
const AliMUONGeometryTransformer& transformer,
- const AliMUONDigitMaker& digitMaker)
+ const AliMUONVDigitStore& digitStore,
+ const AliMUONTriggerUtilities* triggerUtilities)
: TObject(),
fkRecoParam(recoParam),
fkTransformer(transformer),
-fkDigitMaker(digitMaker),
-fDeltaZ(0.0),
-fTrigCovariance(0x0),
-fkMaxDistance(99999.)
+fkDigitStore(digitStore),
+fkTriggerUtilities(triggerUtilities),
+fkMaxDistance(99999.) // obsolete
{
- /// Default constructor
- InitMembers();
- AliMUONTrackExtrap::SetField();
+ /// Default constructor
+ AliMUONTrackExtrap::SetField();
}
AliMUONTrackHitPattern::~AliMUONTrackHitPattern(void)
{
/// Destructor
- delete fTrigCovariance;
}
//______________________________________________________________________________
-void AliMUONTrackHitPattern::InitMembers()
+void
+AliMUONTrackHitPattern::ApplyMCSCorrections(AliMUONTrackParam& trackParam) const
{
//
- /// Initialize data members
+ /// Returns uncertainties on extrapolated position.
+ /// Takes into account Branson plane corrections in the iron wall.
//
- fDeltaZ = TMath::Abs(AliMUONConstants::DefaultChamberZ(12) - AliMUONConstants::DefaultChamberZ(10));
-
- const Double_t kTrigNonBendReso = AliMUONConstants::TriggerNonBendingReso();
- const Double_t kTrigBendReso = AliMUONConstants::TriggerBendingReso();
- const Double_t kTrigSlopeBendReso = 1.414 * AliMUONConstants::TriggerBendingReso()/fDeltaZ;
- const Double_t kTrigCovSlopeBend = - kTrigBendReso * kTrigBendReso / fDeltaZ;
-
- // Covariance matrix 3x3 (X,Y,slopeY) for trigger tracks
- fTrigCovariance = new TMatrixD(3,3);
- fTrigCovariance->Zero();
- (*fTrigCovariance)(0,0) = kTrigNonBendReso * kTrigNonBendReso;
- (*fTrigCovariance)(1,1) = kTrigBendReso * kTrigBendReso;
- (*fTrigCovariance)(2,2) = kTrigSlopeBendReso * kTrigSlopeBendReso;
- (*fTrigCovariance)(1,2) = (*fTrigCovariance)(2,1) = kTrigCovSlopeBend;
-}
-
-
-//_____________________________________________________________________________
-void AliMUONTrackHitPattern::CheckConstants() const
-{
-/// Check consistence of redefined constants
-
- assert(fgkNcathodes == AliMpConstants::NofCathodes());
- assert(fgkNchambers == AliMpConstants::NofTriggerChambers());
- assert(fgkNplanes == AliMpConstants::NofTriggerChambers() * fgkNcathodes);
+
+ const Float_t kZFilterOut = AliMUONConstants::MuonFilterZEnd();
+ const Float_t kFilterThickness = kZFilterOut-AliMUONConstants::MuonFilterZBeg(); // cm
+
+ AliMUONTrackExtrap::ExtrapToZCov(&trackParam, kZFilterOut); // Extrap to muon filter end
+ AliMUONTrackExtrap::AddMCSEffect(&trackParam, kFilterThickness, AliMUONConstants::MuonFilterX0()); // Add MCS effects
+ return;
}
/// and searches for matching trigger tracks and digits
//
- AliMUONDigitStoreV1 digitStore;
- fkDigitMaker.TriggerToDigitsStore(triggerStore,digitStore);
-
+ // Get the hit pattern for all trigger tracks
+ AliMUONTriggerTrack* triggerTrack;
+ TIter itTriggerTrack(triggerTrackStore.CreateIterator());
+ while ( ( triggerTrack = static_cast<AliMUONTriggerTrack*>(itTriggerTrack() ) ) ){
+ AliMUONTrackParam trackParam;
+ trackParam.SetNonBendingCoor(triggerTrack->GetX11());
+ trackParam.SetBendingCoor(triggerTrack->GetY11());
+ trackParam.SetZ(triggerTrack->GetZ11());
+ trackParam.SetNonBendingSlope(triggerTrack->GetSlopeX());
+ trackParam.SetBendingSlope(triggerTrack->GetSlopeY());
+ trackParam.SetInverseBendingMomentum(1.);
+ UInt_t pattern = GetHitPattern(trackParam, kTRUE);
+ // The pattern is a UInt_t, including the information
+ // on the matched local board,
+ // but for backward compatibility we fill a UShort_t
+ // which do not contain such info.
+ // In the old pattern, we use 15 bits out of 16, so the last one should
+ // be masked or it will be filled with 1 bit with the local board info.
+ triggerTrack->SetHitsPatternInTrigCh((UShort_t)(pattern & 0x7FFF));
+ AliDebug(1, Form("Hit pattern (MTR): hits 0x%x slat %2i board %3i effFlag %i",
+ pattern & 0xFF, AliESDMuonTrack::GetSlatOrInfo(pattern),triggerTrack->GetLoTrgNum(), AliESDMuonTrack::GetEffFlag(pattern)));
+ }
+ // Match tracker tracks with trigger tracks.
TIter itTrack(trackStore.CreateIterator());
AliMUONTrack* track;
AliMUONTrackExtrap::ExtrapToZCov(&trackParam, AliMUONConstants::DefaultChamberZ(kFirstTrigCh)); // extrap to 1st trigger chamber
AliMUONTriggerTrack *matchedTriggerTrack = MatchTriggerTrack(track, trackParam, triggerTrackStore, triggerStore);
+ if ( matchedTriggerTrack ) track->SetHitsPatternInTrigCh(matchedTriggerTrack->GetHitsPatternInTrigCh());
- UShort_t pattern = GetHitPattern(matchedTriggerTrack, digitStore, &trackParam);
- track->SetHitsPatternInTrigCh(pattern);
+ UInt_t pattern = GetHitPattern(trackParam, kFALSE);
+ track->SetHitsPatternInTrigChTrk(pattern);
+ AliDebug(1, Form("Hit pattern (MTK): hits 0x%x slat %2i board %3i effFlag %i",
+ pattern & 0xFF, AliESDMuonTrack::GetSlatOrInfo(pattern), AliESDMuonTrack::GetCrossedBoard(pattern), AliESDMuonTrack::GetEffFlag(pattern)));
}
}
+//______________________________________________________________________________
+Bool_t AliMUONTrackHitPattern::FindMatchingPads(const AliMUONTrackParam* trackParam,
+ TArrayI& matchedDetElemId, TObjArray& pads,
+ const AliMUONVDigitStore& digitStore,
+ Bool_t isTriggerTrack) const
+{
+ //
+ /// Search for matching digits in trigger chamber
+ //
+ enum {kBending, kNonBending};
+
+ Double_t minMatchDist[2];
+ Int_t padsInCheckArea[2];
+
+ AliMUONTrackParam trackParamAtPadZ(*trackParam);
+
+ Int_t inputDetElemId = matchedDetElemId[0];
+
+ for(Int_t cath=0; cath<2; cath++){
+ minMatchDist[cath] = 99999.;
+ padsInCheckArea[cath] = 0;
+ }
+
+ Int_t iChamber = AliMpDEManager::GetChamberId(inputDetElemId);
+ Int_t iSlat = inputDetElemId%100;
+
+ TIter next(digitStore.CreateTriggerIterator());
+ AliMUONVDigit* mDigit;
+
+ Double_t xPad = 0., yPad = 0., zPad = 0.;
+ Double_t sigmaX = 0., sigmaY = 0.;
+
+ Double_t nSigmas = ( isTriggerTrack ) ? GetRecoParam()->GetStripCutForTrigger() : GetRecoParam()->GetSigmaCutForTrigger();
+ Bool_t goodForEff = kTRUE;
+
+ while ( ( mDigit = static_cast<AliMUONVDigit*>(next()) ) )
+ {
+ Int_t currDetElemId = mDigit->DetElemId();
+ Int_t currCh = AliMpDEManager::GetChamberId(currDetElemId);
+ if ( currCh != iChamber ) continue;
+ Int_t currSlat = currDetElemId%100;
+ Int_t slatDiff = TMath::Abs(currSlat-iSlat);
+ if ( slatDiff>1 && slatDiff<17 ) continue; // Check neighbour slats
+
+ Int_t cathode = mDigit->Cathode();
+ Int_t ix = mDigit->PadX();
+ Int_t iy = mDigit->PadY();
+ const AliMpVSegmentation* seg = AliMpSegmentation::Instance()
+ ->GetMpSegmentation(currDetElemId,AliMp::GetCathodType(cathode));
+ AliMpPad pad = seg->PadByIndices(ix,iy,kTRUE);
+
+ // Get local pad coordinates
+ Double_t xPadLocal = pad.GetPositionX();
+ Double_t yPadLocal = pad.GetPositionY();
+ Double_t dpx = pad.GetDimensionX();
+ Double_t dpy = pad.GetDimensionY();
+ Double_t xWidth = 2. * dpx;
+ Double_t yWidth = 2. * dpy;
+
+ // Get global pad coordinates
+ fkTransformer.Local2Global(currDetElemId, xPadLocal, yPadLocal, 0., xPad, yPad, zPad);
+
+ // Get track parameters at pad z
+ if ( trackParamAtPadZ.CovariancesExist() ) AliMUONTrackExtrap::LinearExtrapToZCov(&trackParamAtPadZ, zPad);
+ else AliMUONTrackExtrap::LinearExtrapToZ(&trackParamAtPadZ, zPad);
+
+ Double_t deltaX = TMath::Abs(xPad-trackParamAtPadZ.GetNonBendingCoor()) - dpx;
+ Double_t deltaY = TMath::Abs(yPad-trackParamAtPadZ.GetBendingCoor()) - dpy;
+
+
+ // Get sigmas
+ if ( isTriggerTrack ) {
+ Double_t checkWidth = TMath::Min(xWidth, yWidth);
+ Double_t maxCheckArea = GetRecoParam()->GetMaxStripAreaForTrigger() * checkWidth;
+ Double_t sigma = TMath::Max(checkWidth, 2.);
+ sigmaX = sigma; // in cm
+ sigmaY = sigma; // in cm
+ if ( deltaX <= maxCheckArea && deltaY <= maxCheckArea ) {
+ padsInCheckArea[cathode]++;
+ if ( padsInCheckArea[cathode] > 2 ) {
+ goodForEff = kFALSE;
+ AliDebug(2, Form("padsInCheckArea[%i] = %i\n",cathode,padsInCheckArea[cathode]));
+ }
+ }
+ }
+ else {
+ const TMatrixD& kCovParam = trackParamAtPadZ.GetCovariances();
+ sigmaX = TMath::Sqrt(kCovParam(0,0)); // in cm
+ sigmaY = TMath::Sqrt(kCovParam(2,2)); // in cm
+ }
+
+ AliDebug(2, Form("\nDetElemId %i Cath %i Dim = (%.2f,%.2f) Pad (%i,%i) = (%.2f,%.2f) Track = (%.2f,%.2f) Delta (%.2f,%.2f) Sigma (%.2f,%.2f) p %g\n",
+ currDetElemId,cathode,dpx,dpy,ix,iy,xPad,yPad,trackParamAtPadZ.GetNonBendingCoor(),trackParamAtPadZ.GetBendingCoor(),deltaX,deltaY,sigmaX,sigmaY,trackParamAtPadZ.P()));
+ //if ( deltaX <= maxCheckArea && deltaY <= maxCheckArea ) padsInCheckArea[cathode]++;
+ if ( deltaX > nSigmas * sigmaX || deltaY > nSigmas * sigmaY ) continue;
+ Double_t matchDist = TMath::Max(deltaX, deltaY);
+ if ( matchDist > minMatchDist[cathode] ) continue;
+ if ( pads.At(cathode) ) delete pads.RemoveAt(cathode);
+ pads.AddAt((AliMpPad*)pad.Clone(),cathode);
+ minMatchDist[cathode] = matchDist;
+ matchedDetElemId[cathode] = currDetElemId; // Set the input detection element id to the matched one
+ } // loop on digits
+
+// // If track matches many pads, it is not good for effciency determination.
+// // However we still want to calculate the hit pattern.
+// for ( Int_t cath=0; cath<2; cath++ ){
+// if ( padsInCheckArea[cath] > 2 ) {
+// AliDebug(2, Form("padsInCheckArea[%i] = %i\n",cath,padsInCheckArea[cath]));
+// return kFALSE;
+// }
+// }
+
+ return goodForEff;
+}
+
+
+//_____________________________________________________________________________
+UInt_t AliMUONTrackHitPattern::GetHitPattern(const AliMUONTrackParam& trackParam, Bool_t isTriggerTrack) const
+{
+ //
+ /// Searches for matching digits around the track.
+ //
+
+ AliCodeTimerAuto("",0);
+
+ TArrayI digitPerTrack(2);
+ digitPerTrack.Reset();
+
+ UInt_t pattern = 0;
+
+ TObjArray trackParamList, matchedPads(2), maskedPads(2), padsFromPos(4), validPads(2);
+ trackParamList.SetOwner(); matchedPads.SetOwner(); maskedPads.SetOwner(); padsFromPos.SetOwner();
+
+ Int_t firstSlat = -1, firstBoard = -1;
+ AliESDMuonTrack::EAliTriggerChPatternFlag goodForEff = AliESDMuonTrack::kBoardEff;
+ TArrayI matchedDetElemId(2), maskedDetElemId(2), detElemIdFromTrack(2), validDetElemId(2);
+
+ for(Int_t ich=0; ich<AliMUONConstants::NTriggerCh(); ich++) { // chamber loop
+
+ trackParamList.Delete(); matchedPads.Delete(); maskedPads.Delete(); padsFromPos.Delete(); validPads.Clear();
+
+ Int_t nFound = GetTrackParamAtChamber(trackParam, 11+ich, trackParamList, detElemIdFromTrack, padsFromPos);
+ if ( nFound == 0 ) {
+ // track is rejected since the extrapolated track
+ // does not match a slat (border effects)
+ AliESDMuonTrack::AddEffInfo(pattern, AliESDMuonTrack::kTrackOutsideGeometry);
+ goodForEff = AliESDMuonTrack::kNoEff;
+ AliDebug(2, "Warning: trigger track outside trigger chamber\n");
+ continue;
+ }
+
+ // Search for masked pads
+ maskedDetElemId.Reset(detElemIdFromTrack[0]);
+ FindMatchingPads((AliMUONTrackParam*)trackParamList.At(0), maskedDetElemId, maskedPads, *(fkTriggerUtilities->GetMaskedDigits()), isTriggerTrack);
+ if ( maskedPads.GetEntries() > 0 ) {
+ AliESDMuonTrack::AddEffInfo(pattern,AliESDMuonTrack::kTrackMatchesMasks); // pad is masked
+ goodForEff = AliESDMuonTrack::kNoEff;
+ for ( Int_t icath=0; icath<2; icath++ ) {
+ AliMpPad* currPad = (AliMpPad*)maskedPads.UncheckedAt(icath);
+ if ( ! currPad ) continue;
+ AliDebug(2,Form("DetElemId %i cath %i board %i strip %i is masked: effFlag 0", matchedDetElemId[icath], icath, currPad->GetLocalBoardId(0), currPad->GetLocalBoardChannel(0)));
+ }
+ // continue;
+ // We want to calculate the hit pattern in any case, so we do not "continue"
+ // However we set the flag in such a way not to use the track for efficiency calculations
+ }
+
+ // If no masked pads matched, search for active pads
+ matchedDetElemId.Reset(detElemIdFromTrack[0]);
+ if ( ! FindMatchingPads((AliMUONTrackParam*)trackParamList.At(0), matchedDetElemId, matchedPads, fkDigitStore, isTriggerTrack) ) {
+ // if ! FindPadMatchingTrig => too many digits matching pad =>
+ // => Event not clear => Do not use for efficiency calculation
+ AliESDMuonTrack::AddEffInfo(pattern, AliESDMuonTrack::kTrackMatchesManyPads);
+ goodForEff = AliESDMuonTrack::kNoEff;
+ AliDebug(2, Form("Warning: track in %i matches many pads. Rejected!\n", matchedDetElemId[0]));
+ }
+
+ Int_t nMatched = 0;
+
+ Int_t mostProbDEmatched = detElemIdFromTrack[0];
+ for ( Int_t icath=0; icath<2; icath++ ) {
+ if ( matchedPads.UncheckedAt(icath) ) {
+ nMatched++;
+ // Fill pattern anyway
+ AliESDMuonTrack::SetFiredChamber(pattern, icath, ich);
+ digitPerTrack[icath]++;
+ mostProbDEmatched = matchedDetElemId[icath];
+ }
+ }
+ Int_t mostProbDEindex = 0;
+ for ( Int_t ifound=0; ifound<nFound; ifound++ ) {
+ if ( detElemIdFromTrack[ifound] == mostProbDEmatched ) {
+ mostProbDEindex = ifound;
+ break;
+ }
+ }
+
+ if ( goodForEff == AliESDMuonTrack::kNoEff ) continue;
+
+ for ( Int_t icath=0; icath<2; icath++ ) {
+ if ( matchedPads.UncheckedAt(icath) ) {
+ validPads.AddAt(matchedPads.UncheckedAt(icath),icath);
+ validDetElemId[icath] = matchedDetElemId[icath];
+ }
+ else {
+ validPads.AddAt(padsFromPos.UncheckedAt(2*mostProbDEindex + icath),icath);
+ validDetElemId[icath] = detElemIdFromTrack[mostProbDEindex];
+ }
+ }
+
+ Int_t currSlat = mostProbDEmatched%100;
+ if ( firstSlat < 0 ) firstSlat = currSlat;
+
+ if ( currSlat != firstSlat || validDetElemId[0] != validDetElemId[1] ) {
+ goodForEff = AliESDMuonTrack::kChEff;
+ firstSlat = AliESDMuonTrack::kCrossDifferentSlats;
+ }
+
+ if ( firstBoard < 0 ) firstBoard = ((AliMpPad*)validPads.UncheckedAt(0))->GetLocalBoardId(0);
+
+ for ( Int_t icath=0; icath<2; icath++ ){
+
+ if ( goodForEff == AliESDMuonTrack::kBoardEff) {
+ Bool_t atLeastOneLoc = kFALSE;
+ AliMpPad* currPad = (AliMpPad*)validPads.UncheckedAt(icath);
+ for ( Int_t iloc=0; iloc<currPad->GetNofLocations(); iloc++) {
+ if ( currPad->GetLocalBoardId(iloc) == firstBoard ) {
+ atLeastOneLoc = kTRUE;
+ break;
+ }
+ } // loop on locations
+ if ( ! atLeastOneLoc ) goodForEff = AliESDMuonTrack::kSlatEff;
+ }
+ } // loop on cathodes
+ // } // if track good for efficiency
+ } // end chamber loop
+
+ if ( goodForEff == AliESDMuonTrack::kNoEff ) return pattern;
+
+ for(Int_t cath=0; cath<2; cath++){
+ if(digitPerTrack[cath]<3) {
+ // track is rejected since the number of associated
+ // digits found is less than 3.
+ AliESDMuonTrack::AddEffInfo(pattern, AliESDMuonTrack::kTrackMatchesFewPads);
+ goodForEff = AliESDMuonTrack::kNoEff;
+ AliDebug(2, Form("Warning: found %i digits for trigger track cathode %i.\nRejecting event\n", digitPerTrack[cath],cath));
+ }
+ } // loop on cathodes
+
+ if ( goodForEff == AliESDMuonTrack::kNoEff ) return pattern;
+
+ AliESDMuonTrack::AddEffInfo(pattern, firstSlat, firstBoard, goodForEff);
+ return pattern;
+}
+
+
+
+//_____________________________________________________________________________
+Int_t AliMUONTrackHitPattern::GetTrackParamAtChamber(const AliMUONTrackParam& inputTrackParam, Int_t chamber,
+ TObjArray& trackParamList, TArrayI& foundDetElemId,
+ TObjArray& padsFromPos) const
+{
+ //
+ /// Return the extrapolated the track parameter at the given chamber
+ /// and returns the matching DetElemId
+ /// CAVEAT: at the border the result is not univoque
+ //
+
+ Int_t nFound = 0;
+ foundDetElemId[0] = foundDetElemId[1] = 0;
+ AliMUONTrackParam trackParamCopy(inputTrackParam);
+ TVector3 globalPoint1(trackParamCopy.GetNonBendingCoor(), trackParamCopy.GetBendingCoor(), trackParamCopy.GetZ());
+ AliMUONTrackExtrap::LinearExtrapToZ(&trackParamCopy, trackParamCopy.GetZ() + 20.);
+ TVector3 globalPoint2(trackParamCopy.GetNonBendingCoor(), trackParamCopy.GetBendingCoor(), trackParamCopy.GetZ());
+ TVector3 localCoor;
+
+ // AliMpArea pointArea(x, y, 2.*AliMpConstants::LengthTolerance(), 2.*AliMpConstants::LengthTolerance());
+ AliMpDEIterator it;
+ Double_t xGlobal, yGlobal, zGlobal;
+ for ( it.First(chamber-1); ! it.IsDone(); it.Next() ){
+ Int_t detElemId = it.CurrentDEId();
+ PosInDetElemIdLocal(localCoor, globalPoint1, globalPoint2, detElemId);
+ fkTransformer.Local2Global(detElemId, localCoor.X(), localCoor.Y(), localCoor.Z(), xGlobal, yGlobal, zGlobal);
+ AliMpArea pointArea(xGlobal, yGlobal, 2.*AliMpConstants::LengthTolerance(), 2.*AliMpConstants::LengthTolerance());
+ AliMpArea* deArea = fkTransformer.GetDEArea(detElemId);
+ if ( deArea->Contains(pointArea) ) {
+ // Check if track matches valid pads
+ // (this is not trivial for cut RPC)
+ Int_t validPads = 0;
+ for ( Int_t icath=0; icath<2; icath++ ) {
+ const AliMpVSegmentation* seg =
+ AliMpSegmentation::Instance()
+ ->GetMpSegmentation(detElemId,AliMp::GetCathodType(icath));
+ AliMpPad pad = seg->PadByPosition(localCoor.X(),localCoor.Y(),kFALSE);
+ if ( pad.IsValid() ) {
+ padsFromPos.AddAt(pad.Clone(), 2*nFound + icath);
+ validPads++;
+ }
+ }
+ if ( validPads < 2 ) continue;
+ AliMUONTrackParam* extrapTrackParam = new AliMUONTrackParam(inputTrackParam);
+ if ( extrapTrackParam->CovariancesExist() ) AliMUONTrackExtrap::LinearExtrapToZCov(extrapTrackParam, zGlobal);
+ else AliMUONTrackExtrap::LinearExtrapToZ(extrapTrackParam, zGlobal);
+ trackParamList.AddAt(extrapTrackParam,nFound);
+ foundDetElemId[nFound] = detElemId;
+ nFound++;
+ if ( nFound == 2 ) break;
+ }
+ else if ( nFound > 0 ) break;
+ } // loop on detElemId
+
+ return nFound;
+}
+
+
//______________________________________________________________________________
AliMUONTriggerTrack *
AliMUONTrackHitPattern::MatchTriggerTrack(AliMUONTrack* track,
Int_t matchTrigger = 0;
Int_t loTrgNum(-1);
- Double_t distTriggerTrack[3], sigma2[3];
+ TMatrixD paramDiff(3,1);
Double_t chi2;
Double_t chi2MatchTrigger = 0., minChi2MatchTrigger = 999.;
Int_t doubleMatch = -1; // Check if track matches 2 trigger tracks
AliMUONTriggerTrack* doubleTriggerTrack = 0x0;
AliMUONTriggerTrack* matchedTriggerTrack = 0x0;
- const TMatrixD& kParamCov = trackParam.GetCovariances();
-
- Double_t xTrack = trackParam.GetNonBendingCoor();
- Double_t yTrack = trackParam.GetBendingCoor();
- Double_t ySlopeTrack = trackParam.GetBendingSlope();
- // Covariance matrix 3x3 (X,Y,slopeY) for tracker tracks
+ // Covariance matrix 3x3 (X,Y,slopeY) for trigger tracks
TMatrixD trackCov(3,3);
- trackCov.Zero();
- trackCov(0,0) = kParamCov(0,0);
- trackCov(1,1) = kParamCov(2,2);
- trackCov(2,2) = kParamCov(3,3);
- trackCov(1,2) = kParamCov(2,3);
- trackCov(2,1) = kParamCov(3,2);
-
- TMatrixD sumCov(trackCov,TMatrixD::kPlus,*fTrigCovariance);
-
- Bool_t isCovOK = kTRUE;
-
- if (sumCov.Determinant() != 0) {
- sumCov.Invert();
- } else {
- AliWarning(" Determinant = 0");
- isCovOK = kFALSE;
- sigma2[0] = kParamCov(0,0);
- sigma2[1] = kParamCov(2,2);
- sigma2[2] = kParamCov(3,3);
- // sigma of distributions (trigger-track) X,Y,slopeY
- const Double_t kDistSigma[3]={AliMUONConstants::TriggerNonBendingReso(),
- AliMUONConstants::TriggerBendingReso(),
- 1.414 * AliMUONConstants::TriggerBendingReso()/fDeltaZ};
- for (Int_t iVar = 0; iVar < 3; iVar++) sigma2[iVar] += kDistSigma[iVar] * kDistSigma[iVar];
- }
AliMUONTriggerTrack *triggerTrack;
TIter itTriggerTrack(triggerTrackStore.CreateIterator());
while ( ( triggerTrack = static_cast<AliMUONTriggerTrack*>(itTriggerTrack() ) ) )
{
- distTriggerTrack[0] = triggerTrack->GetX11() - xTrack;
- distTriggerTrack[1] = triggerTrack->GetY11() - yTrack;
- distTriggerTrack[2] = TMath::Tan(triggerTrack->GetThetay()) - ySlopeTrack;
-
- if(isCovOK){
- TMatrixD paramDiff(3,1);
- for(Int_t iVar = 0; iVar < 3; iVar++)
- paramDiff(iVar,0) = distTriggerTrack[iVar];
-
+ AliMUONTrackExtrap::LinearExtrapToZCov(&trackParam, triggerTrack->GetZ11());
+ const TMatrixD& kParamCov = trackParam.GetCovariances();
+
+ Double_t xTrack = trackParam.GetNonBendingCoor();
+ Double_t yTrack = trackParam.GetBendingCoor();
+ Double_t ySlopeTrack = trackParam.GetBendingSlope();
+
+ paramDiff(0,0) = triggerTrack->GetX11() - xTrack;
+ paramDiff(1,0) = triggerTrack->GetY11() - yTrack;
+ paramDiff(2,0) = triggerTrack->GetSlopeY() - ySlopeTrack;
+
+ // Covariance matrix 3x3 (X,Y,slopeY) for tracker tracks
+ trackCov.Zero();
+ trackCov(0,0) = kParamCov(0,0);
+ trackCov(1,1) = kParamCov(2,2);
+ trackCov(2,2) = kParamCov(3,3);
+ trackCov(1,2) = kParamCov(2,3);
+ trackCov(2,1) = kParamCov(3,2);
+
+ // Covariance matrix 3x3 (X,Y,slopeY) for trigger tracks
+ TMatrixD trigCov(triggerTrack->GetCovariances());
+
+ TMatrixD sumCov(trackCov,TMatrixD::kPlus,trigCov);
+ if (sumCov.Determinant() != 0) {
+ sumCov.Invert();
+
TMatrixD tmp(sumCov,TMatrixD::kMult,paramDiff);
TMatrixD chi2M(paramDiff,TMatrixD::kTransposeMult,tmp);
- chi2 = chi2M(0,0);
- }
- else {
+ chi2 = chi2M(0,0);
+ } else {
+ AliWarning(" Determinant = 0");
+ Double_t sigma2 = 0.;
chi2 = 0.;
- for (Int_t iVar = 0; iVar < 3; iVar++) chi2 += distTriggerTrack[iVar]*distTriggerTrack[iVar]/sigma2[iVar];
+ for (Int_t iVar = 0; iVar < 3; iVar++) {
+ sigma2 = trackCov(iVar,iVar) + trigCov(iVar,iVar);
+ chi2 += paramDiff(iVar,0) * paramDiff(iVar,0) / sigma2;
+ }
}
chi2 /= 3.; // Normalized Chi2: 3 degrees of freedom (X,Y,slopeY)
}
track->SetMatchTrigger(matchTrigger);
- track->SetLoTrgNum(loTrgNum);
track->SetChi2MatchTrigger(chi2MatchTrigger);
AliMUONLocalTrigger* locTrg = static_cast<AliMUONLocalTrigger*>(triggerStore.FindLocal(loTrgNum));
if (locTrg)
{
- Int_t deviation = locTrg->GetDeviation();
track->SetLocalTrigger(locTrg->LoCircuit(),
locTrg->LoStripX(),
locTrg->LoStripY(),
- deviation,
+ locTrg->GetDeviation(),
locTrg->LoLpt(),
- locTrg->LoHpt());
+ locTrg->LoHpt(),
+ locTrg->GetTriggerWithoutChamber());
}
return matchedTriggerTrack;
}
-//______________________________________________________________________________
-UShort_t AliMUONTrackHitPattern::GetHitPattern(AliMUONTriggerTrack* matchedTriggerTrack,
- AliMUONVDigitStore& digitStore,
- AliMUONTrackParam* trackParam) const
+//_____________________________________________________________________________
+Bool_t AliMUONTrackHitPattern::PosInDetElemIdLocal(TVector3& localCoor, const TVector3& globalPoint1,
+ const TVector3& globalPoint2, Int_t detElemId) const
{
- //
- /// Get hit pattern on trigger chambers for the current track
- //
- UShort_t pattern = 0;
- Bool_t isMatch[2];
- const Int_t kNTrackingCh = AliMUONConstants::NTrackingCh();
-
- Bool_t patternFromTrigTrack = kFALSE;
-
-
- // Calculate hit pattern from trigger track
- if(matchedTriggerTrack){
- patternFromTrigTrack = PerformTrigTrackMatch(pattern, matchedTriggerTrack, digitStore);
- }
-
- if(patternFromTrigTrack) return pattern;
-
-
- // Calculate hit pattern from tracker track propagation
- // if hit pattern from trigger track failed and track parameters are provided
-
- if(!trackParam) return 0;
-
- for(Int_t ch=0; ch<4; ++ch)
- {
- Int_t iChamber = kNTrackingCh+ch;
- AliMUONTrackExtrap::ExtrapToZCov(trackParam, AliMUONConstants::DefaultChamberZ(iChamber));
- FindPadMatchingTrack(digitStore, *trackParam, isMatch, iChamber);
- for(Int_t cath=0; cath<2; ++cath)
- {
- if(isMatch[cath]) SetBit(pattern, cath, ch);
- }
- }
- return pattern;
+ /// Given two points belonging to a line (global coordinates)
+ /// it returns the intersection point with the detElemId (local coordinates)
+
+ Double_t xloc, yloc, zloc;
+ fkTransformer.Global2Local(detElemId, globalPoint1.X(), globalPoint1.Y(), globalPoint1.Z(), xloc, yloc, zloc);
+ TVector3 localPoint1(xloc, yloc, zloc);
+ fkTransformer.Global2Local(detElemId, globalPoint2.X(), globalPoint2.Y(), globalPoint2.Z(), xloc, yloc, zloc);
+ TVector3 localPoint2(xloc, yloc, zloc);
+ localCoor = localPoint1 - ( localPoint1.Z() / ( localPoint2.Z() - localPoint1.Z() ) ) * ( localPoint2 - localPoint1 );
+
+ return kTRUE;
}
-//______________________________________________________________________________
-void AliMUONTrackHitPattern::SetBit(UShort_t& pattern, Int_t cathode, Int_t chamber) const
-{
- //
- /// Set hits pattern
- //
- const Int_t kMask[2][4]= {{0x80, 0x40, 0x20, 0x10},
- {0x08, 0x04, 0x02, 0x01}};
- pattern |= kMask[cathode][chamber];
-}
-
+// THE FOLLOWING METHODS ARE OBSOLETE
//______________________________________________________________________________
-void AliMUONTrackHitPattern::AddEffInfo(UShort_t& pattern, Int_t slat, Int_t effType) const
+UInt_t AliMUONTrackHitPattern::GetHitPattern(const AliMUONTriggerTrack* matchedTriggerTrack) const
{
//
- /// Set info on efficiency calculation
+ /// Get hit pattern on trigger chambers for the current trigger track
//
- pattern += effType << 8;
- pattern += slat << 10;
+ UInt_t pattern = 0;
+ PerformTrigTrackMatch(pattern, matchedTriggerTrack);
+ return pattern;
}
//______________________________________________________________________________
-void
-AliMUONTrackHitPattern::ApplyMCSCorrections(AliMUONTrackParam& trackParam) const
+UInt_t AliMUONTrackHitPattern::GetHitPattern(AliMUONTrackParam* trackParam) const
{
//
- /// Returns uncertainties on extrapolated position.
- /// Takes into account Branson plane corrections in the iron wall.
+ /// Get hit pattern on trigger chambers for the current tracker track
//
-
- const Float_t kZFilterOut = AliMUONConstants::MuonFilterZEnd();
- const Float_t kFilterThickness = TMath::Abs(kZFilterOut-AliMUONConstants::MuonFilterZBeg()); // cm
-
- AliMUONTrackExtrap::ExtrapToZCov(&trackParam, kZFilterOut); // Extrap to muon filter end
- AliMUONTrackExtrap::AddMCSEffect(&trackParam, kFilterThickness, AliMUONConstants::MuonFilterX0()); // Add MCS effects
- return;
+ UInt_t pattern = 0;
+ Bool_t isMatch[2];
+ const Int_t kNTrackingCh = AliMUONConstants::NTrackingCh();
+
+ for(Int_t ch=0; ch<4; ++ch)
+ {
+ Int_t iChamber = kNTrackingCh+ch;
+ AliMUONTrackExtrap::ExtrapToZCov(trackParam, AliMUONConstants::DefaultChamberZ(iChamber));
+ FindPadMatchingTrack(*trackParam, isMatch, iChamber);
+ for(Int_t cath=0; cath<2; ++cath)
+ {
+ if(isMatch[cath]) AliESDMuonTrack::SetFiredChamber(pattern, cath, ch);
+ }
+ }
+
+ // pattern obtained by propagation of tracker track
+ // when it does not match the trigger.
+ AliESDMuonTrack::AddEffInfo(pattern, AliESDMuonTrack::kTrackerTrackPattern);
+
+ return pattern;
}
//______________________________________________________________________________
void
-AliMUONTrackHitPattern::FindPadMatchingTrack(const AliMUONVDigitStore& digitStore,
- const AliMUONTrackParam& trackParam,
+AliMUONTrackHitPattern::FindPadMatchingTrack(const AliMUONTrackParam& trackParam,
Bool_t isMatch[2], Int_t iChamber) const
{
//
minMatchDist[cath]=fkMaxDistance/10.;
}
- TIter next(digitStore.CreateIterator());
+ TIter next(fkDigitStore.CreateTriggerIterator());
AliMUONVDigit* mDigit;
while ( ( mDigit = static_cast<AliMUONVDigit*>(next()) ) )
//
AliMUONTrackParam trackParamAtPadZ(trackParam);
- AliMUONTrackExtrap::ExtrapToZCov(&trackParamAtPadZ, zPad);
+ AliMUONTrackExtrap::LinearExtrapToZCov(&trackParamAtPadZ, zPad);
Float_t xTrackAtPad = trackParamAtPadZ.GetNonBendingCoor();
Float_t yTrackAtPad = trackParamAtPadZ.GetBendingCoor();
//_____________________________________________________________________________
-Int_t AliMUONTrackHitPattern::FindPadMatchingTrig(const AliMUONVDigitStore& digitStore, Int_t &detElemId,
- Float_t coor[2], Bool_t isMatch[2],
- TArrayI nboard[2], TArrayF &zRealMatch, Float_t y11) const
+Bool_t AliMUONTrackHitPattern::FindPadMatchingTrig(const TVector3& vec11, const TVector3& vec21,
+ Int_t matchedDetElemId[2], TObjArray& pads) const
{
- //
- /// Check slat and board number of digit matching trigger track
- //
-
- enum {kBending, kNonBending};
-
- Float_t minMatchDist[fgkNcathodes];
- Int_t padsInCheckArea[fgkNcathodes];
-
- for(Int_t cath=0; cath<fgkNcathodes; cath++){
- isMatch[cath] = kFALSE;
- minMatchDist[cath] = fkMaxDistance/10.;
- padsInCheckArea[cath] = 0;
- }
- Int_t iChamber = AliMpDEManager::GetChamberId(detElemId);
- Int_t ch = iChamber-10;
- Float_t oldDeltaZ = AliMUONConstants::DefaultChamberZ(iChamber) - AliMUONConstants::DefaultChamberZ(10);
- Float_t y = coor[1];
- Int_t iSlat = detElemId%100;
- Int_t trigDigitBendPlane = -1;
- Int_t foundDetElemId = detElemId;
- Float_t foundZmatch=999.;
- Float_t yCoorAtPadZ=999.;
-
- TIter next(digitStore.CreateIterator());
- AliMUONVDigit* mDigit;
- Int_t idigit=0;
+ //
+ /// Check slat and board number of digit matching trigger track
+ //
+
+ enum {kBending, kNonBending};
+
+ Float_t minMatchDist[2];
+ Int_t padsInCheckArea[2];
+
+ Int_t inputDetElemId = matchedDetElemId[0];
+
+ for(Int_t cath=0; cath<2; cath++){
+ minMatchDist[cath] = fkMaxDistance/10.;
+ padsInCheckArea[cath] = 0;
+ }
+
+ Int_t iChamber = AliMpDEManager::GetChamberId(inputDetElemId);
+ Int_t iSlat = inputDetElemId%100;
+
+ TIter next(fkDigitStore.CreateTriggerIterator());
+ AliMUONVDigit* mDigit;
+ TVector3 localExtrap;
+
+ Int_t previousDetElemId = -1;
+
+ while ( ( mDigit = static_cast<AliMUONVDigit*>(next()) ) )
+ {
+ Int_t currDetElemId = mDigit->DetElemId();
+ Int_t currCh = AliMpDEManager::GetChamberId(currDetElemId);
+ if ( currCh != iChamber ) continue;
+ Int_t currSlat = currDetElemId%100;
+ Int_t slatDiff = TMath::Abs(currSlat-iSlat);
+ if ( slatDiff>1 && slatDiff<17 ) continue; // Check neighbour slats
+ Int_t cathode = mDigit->Cathode();
+ Int_t ix = mDigit->PadX();
+ Int_t iy = mDigit->PadY();
+ const AliMpVSegmentation* seg = AliMpSegmentation::Instance()
+ ->GetMpSegmentation(currDetElemId,AliMp::GetCathodType(cathode));
- while ( ( mDigit = static_cast<AliMUONVDigit*>(next()) ) )
- {
- idigit++;
- Int_t currDetElemId = mDigit->DetElemId();
- Int_t currCh = AliMpDEManager::GetChamberId(currDetElemId);
- if(currCh!=iChamber) continue;
- Int_t currSlat = currDetElemId%100;
- Int_t slatDiff = TMath::Abs(currSlat-iSlat);
- if(slatDiff>1 && slatDiff<17) continue; // Check neighbour slats
- Int_t cathode = mDigit->Cathode();
- Int_t ix = mDigit->PadX();
- Int_t iy = mDigit->PadY();
- Float_t xpad, ypad, zpad;
- const AliMpVSegmentation* seg = AliMpSegmentation::Instance()
- ->GetMpSegmentation(currDetElemId,AliMp::GetCathodType(cathode));
-
- AliMpPad pad = seg->PadByIndices(ix,iy,kTRUE);
- Float_t xlocal1 = pad.GetPositionX();
- Float_t ylocal1 = pad.GetPositionY();
- Float_t dpx = pad.GetDimensionX();
- Float_t dpy = pad.GetDimensionY();
-
- fkTransformer.Local2Global(currDetElemId, xlocal1, ylocal1, 0, xpad, ypad, zpad);
- AliDebug(2, Form("\nDetElemId = %i Cathode = %i Pad = (%i,%i) = (%.2f,%.2f) Dim = (%.2f,%.2f) Track = (%.2f,%.2f)\n",currDetElemId,cathode,ix,iy,xpad,ypad,dpx,dpy,coor[0],coor[1]));
- // searching track intersection with chambers (second approximation)
- if(ch%2==1){
- //if(iChamber%2==1){
- Float_t deltaZ = zpad - zRealMatch[0];
- y = (coor[1]-y11)*deltaZ/oldDeltaZ + y11;
- if(TMath::Abs(y-coor[1])>0.1) AliDebug(3, Form("oldDeltaZ = %7.2f newDeltaZ = %7.2f\toldY = %7.2f new y = %7.2f\n",oldDeltaZ,deltaZ,coor[1],y));
- }
- Float_t matchDist = PadMatchTrack(xpad, ypad, dpx, dpy, coor[0], y);
- if(matchDist<fkMaxDistance/2.) padsInCheckArea[cathode]++;
- if(matchDist>minMatchDist[cathode])continue;
- isMatch[cathode] = kTRUE;
- minMatchDist[cathode] = matchDist;
- foundDetElemId = currDetElemId;
- foundZmatch=zpad;
- yCoorAtPadZ=y;
- if(cathode==kBending) trigDigitBendPlane = idigit;
- for (Int_t loc=0; loc<pad.GetNofLocations(); loc++){
- nboard[cathode][loc] = pad.GetLocalBoardId(loc);
- }
- for(Int_t loc=pad.GetNofLocations(); loc<fgkNlocations; loc++){
- nboard[cathode][loc]=-1;
- }
- }
-
- for(Int_t cath=0; cath<fgkNcathodes; cath++){
- if(padsInCheckArea[cath]>2) {
- AliDebug(1, Form("padsInCheckArea[%i] = %i\n",cath,padsInCheckArea[cath]));
- return -500;
- }
+ AliMpPad pad = seg->PadByIndices(ix,iy,kTRUE);
+
+ if ( currDetElemId != previousDetElemId ) {
+ PosInDetElemIdLocal(localExtrap, vec11, vec21, currDetElemId);
+ previousDetElemId = currDetElemId;
}
-
- if(isMatch[kBending] || isMatch[kNonBending]){
- detElemId = foundDetElemId;
- zRealMatch[ch] = foundZmatch;
- coor[1] = yCoorAtPadZ;
+
+ AliDebug(11, Form("\nDetElemId = %i Cathode = %i Pad = (%i,%i) = (%.2f,%.2f) Dim = (%.2f,%.2f) Track = (%.2f,%.2f)\n",
+ currDetElemId,cathode,ix,iy,pad.GetPositionX(),pad.GetPositionY(),pad.GetDimensionX(),pad.GetDimensionY(),localExtrap.X(),localExtrap.Y()));
+ Float_t matchDist = PadMatchTrack(pad, localExtrap);
+ if ( matchDist < fkMaxDistance/2. ) padsInCheckArea[cathode]++;
+ if ( matchDist > minMatchDist[cathode] ) continue;
+ if ( pads.At(cathode) ) delete pads.RemoveAt(cathode);
+ pads.AddAt((AliMpPad*)pad.Clone(),cathode);
+ minMatchDist[cathode] = matchDist;
+ matchedDetElemId[cathode] = currDetElemId; // Set the input detection element id to the matched one
+ } // loop on digits
+
+ // If track matches many pads, it is not good for effciency determination.
+ // However we still want to calculate the hit pattern.
+ for ( Int_t cath=0; cath<2; cath++ ){
+ if ( padsInCheckArea[cath] > 2 ) {
+ AliDebug(10, Form("padsInCheckArea[%i] = %i\n",cath,padsInCheckArea[cath]));
+ return kFALSE;
}
- return trigDigitBendPlane;
+ }
+
+ return kTRUE;
}
//_____________________________________________________________________________
-Float_t AliMUONTrackHitPattern::PadMatchTrack(Float_t xPad, Float_t yPad,
- Float_t dpx, Float_t dpy,
- Float_t xTrackAtPad, Float_t yTrackAtPad) const
+Float_t AliMUONTrackHitPattern::PadMatchTrack(const AliMpPad& pad, const TVector3& trackPosAtPad) const
{
- //
- /// Decides if the digit belongs to the trigger track.
- //
+ //
+ /// Decides if the digit belongs to the trigger track.
+ //
+
+ Float_t xPad = pad.GetPositionX();
+ Float_t yPad = pad.GetPositionY();
+ Float_t dpx = pad.GetDimensionX();
+ Float_t dpy = pad.GetDimensionY();
+
Float_t maxDist = GetRecoParam()->GetStripCutForTrigger() * 2. * TMath::Min(dpx,dpy); // cm
- if(maxDist<2.) maxDist = 2.;
+ if ( maxDist<2. ) maxDist = 2.;
Float_t maxDistCheckArea = GetRecoParam()->GetMaxStripAreaForTrigger() * 2. * TMath::Min(dpx,dpy); // cm
- Float_t matchDist = fkMaxDistance;
+ Float_t matchDist = fkMaxDistance;
- Float_t deltaX = TMath::Abs(xPad-xTrackAtPad)-dpx;
- Float_t deltaY = TMath::Abs(yPad-yTrackAtPad)-dpy;
- Float_t maxDistX = maxDist;
- Float_t maxDistY = maxDist;
+ Float_t deltaX = TMath::Abs(xPad-trackPosAtPad.X())-dpx;
+ Float_t deltaY = TMath::Abs(yPad-trackPosAtPad.Y())-dpy;
+ Float_t maxDistX = maxDist;
+ Float_t maxDistY = maxDist;
- if(deltaX<=maxDistX && deltaY<=maxDistY) matchDist = TMath::Max(deltaX, deltaY);
- else if(deltaX<=maxDistCheckArea && deltaY<=maxDistCheckArea) matchDist = fkMaxDistance/5.;
- return matchDist;
+ if(deltaX<=maxDistX && deltaY<=maxDistY) matchDist = TMath::Max(deltaX, deltaY);
+ else if(deltaX<=maxDistCheckArea && deltaY<=maxDistCheckArea) matchDist = fkMaxDistance/5.;
+ return matchDist;
}
//_____________________________________________________________________________
Int_t AliMUONTrackHitPattern::DetElemIdFromPos(Float_t x, Float_t y,
- Int_t chamber, Int_t cathode) const
+ Int_t chamber, Int_t foundDetElemId[2]) const
{
- //
- /// Given the (x,y) position in the chamber,
- /// it returns the corresponding slat
- //
+ //
+ /// Given the (x,y) position in the chamber,
+ /// it returns the corresponding slats
+ /// Caveat: at the border the result is not univoque
+ //
+
+ Int_t nFound = 0;
+
+ foundDetElemId[0] = foundDetElemId[1] = 0;
+ AliMpArea pointArea(x, y, 2.*AliMpConstants::LengthTolerance(), 2.*AliMpConstants::LengthTolerance());
+ AliMpDEIterator it;
+ for ( it.First(chamber-1); ! it.IsDone(); it.Next() ){
+ Int_t detElemId = it.CurrentDEId();
+ AliMpArea* deArea = fkTransformer.GetDEArea(detElemId);
+
+ if ( deArea->Contains(pointArea) ) {
+ foundDetElemId[nFound++] = detElemId;
+ if ( nFound == 2 ) break;
+ }
+ else if ( nFound > 0 ) break;
+ } // loop on detElemId
+
+ return nFound;
+}
- Int_t resultingDetElemId = -1;
- AliMpDEIterator it;
- Float_t minDist = 999.;
- for ( it.First(chamber-1); ! it.IsDone(); it.Next() ){
- Int_t detElemId = it.CurrentDEId();
- Int_t ich = detElemId/100-10;
- Float_t tolerance=0.2*((Float_t)ich);
- Float_t currDist=9999.;
-
- const AliMpVSegmentation* seg =
- AliMpSegmentation::Instance()
- ->GetMpSegmentation(detElemId,AliMp::GetCathodType(cathode));
- if (!seg) continue;
-
- Float_t deltax = seg->GetDimensionX();
- Float_t deltay = seg->GetDimensionY();
- Float_t xlocal1 = -deltax;
- Float_t ylocal1 = -deltay;
- Float_t xlocal2 = +deltax;
- Float_t ylocal2 = +deltay;
- Float_t xg01, yg01, zg1, xg02, yg02, zg2;
- fkTransformer.Local2Global(detElemId, xlocal1, ylocal1, 0, xg01, yg01, zg1);
- fkTransformer.Local2Global(detElemId, xlocal2, ylocal2, 0, xg02, yg02, zg2);
-
- Float_t xg1 = xg01, xg2 = xg02, yg1 = yg01, yg2 = yg02;
-
- if(xg01>xg02){
- xg1 = xg02;
- xg2 = xg01;
- }
- if(yg01>yg02){
- yg1 = yg02;
- yg2 = yg01;
- }
- if(x>=xg1-tolerance && x<=xg2+tolerance && y>=yg1-tolerance && y<=yg2+tolerance){ // takes into account errors in extrapolation
- if(y<yg1) currDist = yg1-y;
- else if(y>yg2) currDist = y-yg2;
- if(currDist<minDist) {
- resultingDetElemId = detElemId;
- minDist=currDist;
- continue;
- }
- resultingDetElemId = detElemId;
- break;
- }
- } // loop on detElemId
- return resultingDetElemId;
+
+//_____________________________________________________________________________
+Bool_t AliMUONTrackHitPattern::PadsFromPos(const TVector3& vec11, const TVector3& vec21,
+ Int_t detElemId, TObjArray& pads) const
+{
+ //
+ /// Given the (x,y) position in the chamber,
+ /// it returns the corresponding local board
+ //
+
+ pads.Delete();
+
+ TVector3 localCoor;
+ PosInDetElemIdLocal(localCoor, vec11, vec21, detElemId);
+ for ( Int_t icath=0; icath<2; icath++ ) {
+ const AliMpVSegmentation* seg =
+ AliMpSegmentation::Instance()
+ ->GetMpSegmentation(detElemId,AliMp::GetCathodType(icath));
+ AliMpPad pad = seg->PadByPosition(localCoor.X(),localCoor.Y(),kFALSE);
+ if ( pad.IsValid() ) {
+ pads.AddAt(pad.Clone(), icath);
+ }
+ }
+
+ return pads.GetEntries();
}
//_____________________________________________________________________________
-void AliMUONTrackHitPattern::LocalBoardFromPos(Float_t x, Float_t y,
- Int_t detElemId, Int_t cathode,
- Int_t localBoard[4]) const
+Bool_t AliMUONTrackHitPattern::IsCloseToAccEdge(TObjArray& pads, Int_t detElemId, Float_t coor[2]) const
{
- //
- /// Given the (x,y) position in the chamber,
- /// it returns the corresponding local board
- //
+ AliMpArea* deArea = fkTransformer.GetDEArea(detElemId);
+ Float_t dpx = ((AliMpPad*)pads.At(1))->GetDimensionX();
+ Float_t dpy = ((AliMpPad*)pads.At(0))->GetDimensionY();
+ Float_t resolution[2] = { static_cast<Float_t>(0.75*dpx), static_cast<Float_t>(0.75*dpy) };
+ Float_t sign[3] = {0., 1., -1.};
+ for ( Int_t ineighx=0; ineighx<3; ineighx++ ) {
+ for ( Int_t ineighy=0; ineighy<3; ineighy++ ) {
+ AliMpArea pointArea(coor[0]+sign[ineighx]*resolution[0],
+ coor[1]+sign[ineighy]*resolution[1],
+ 2.*AliMpConstants::LengthTolerance(),
+ 2.*AliMpConstants::LengthTolerance());
+ if ( ! deArea->Contains(pointArea) ) return kTRUE;
+ } // loop on y neighbours
+ } // loop on x neighbours
+ return kFALSE;
+}
- for(Int_t loc=0; loc<fgkNlocations; loc++){
- localBoard[loc]=-1;
- }
- Float_t xl, yl, zl;
- fkTransformer.Global2Local(detElemId, x, y, 0, xl, yl, zl);
- TVector2 pos(xl,yl);
+
+//_____________________________________________________________________________
+Bool_t AliMUONTrackHitPattern::IsMasked(const AliMpPad& pad, Int_t detElemId, Int_t cathode, const TVector3& vec11, const TVector3& vec21) const
+{
+ //
+ /// Check if pad or its neighbours are masked
+ //
+
+ Int_t nMasked = 0;
+
+ if ( fkTriggerUtilities->IsMasked(pad, detElemId, cathode) ) ++nMasked;
+
+ // Check closest neighbour
+
+ TVector3 localCoor;
+ PosInDetElemIdLocal(localCoor, vec11, vec21, detElemId);
+
+ Float_t padPos[2] = { static_cast<Float_t>(pad.GetPositionX()), static_cast<Float_t>(pad.GetPositionY())};
+ Float_t padDim[2] = { static_cast<Float_t>(pad.GetDimensionX()), static_cast<Float_t>(pad.GetDimensionY())};
+ Float_t inpactPos[2] = { static_cast<Float_t>(localCoor.X()), static_cast<Float_t>(localCoor.Y())};
+ Float_t sign[2] = {-1., 1.};
+ Int_t icoor = 1-cathode;
+ Int_t addSlatSign[3] = {0,1,-1};
+ Int_t inputCh = AliMpDEManager::GetChamberId(detElemId)+1;
+ Int_t inputSlat = detElemId%100;
+
+ Float_t newPos[2];
+ for ( Int_t ineigh=0; ineigh<2; ineigh++ ) {
+ newPos[1-icoor] = inpactPos[1-icoor];
+ newPos[icoor] = inpactPos[icoor] + 1.05 * sign[ineigh] * padDim[icoor];
+ if ( TMath::Abs(newPos[icoor] - padPos[icoor]) < padDim[icoor] ) continue;
const AliMpVSegmentation* seg =
- AliMpSegmentation::Instance()
- ->GetMpSegmentation(detElemId,AliMp::GetCathodType(cathode));
- if (seg){
- AliMpPad pad = seg->PadByPosition(pos.X(),pos.Y(),kFALSE);
- for (Int_t loc=0; loc<pad.GetNofLocations(); loc++){
- localBoard[loc] = pad.GetLocalBoardId(loc);
- }
+ AliMpSegmentation::Instance()->GetMpSegmentation(detElemId,AliMp::GetCathodType(cathode));
+ AliMpPad neighPad = seg->PadByPosition(newPos[0],newPos[1],kFALSE);
+ if ( neighPad.IsValid() ) {
+ if ( fkTriggerUtilities->IsMasked(neighPad, detElemId, cathode) ) ++nMasked;
}
+ else {
+ TVector3 deltaVec(newPos[0]-inpactPos[0],newPos[1]-inpactPos[1],0.);
+ TVector3 transVec11 = vec11+deltaVec;
+ TVector3 transVec21 = vec21+deltaVec;
+ TObjArray padsFromPos;
+ padsFromPos.SetOwner();
+ for ( Int_t iAddSlat=0; iAddSlat<2; iAddSlat++ ) {
+ Int_t currSlat = (inputSlat + addSlatSign[iAddSlat])%18;
+ Int_t currDetElemId = 100 * inputCh + currSlat;
+ PadsFromPos(transVec11,transVec21,currDetElemId,padsFromPos);
+ AliMpPad* currPad = (AliMpPad*)padsFromPos.UncheckedAt(cathode);
+ Bool_t isMasked = ( currPad ) ? fkTriggerUtilities->IsMasked(*currPad, currDetElemId, cathode) : kFALSE;
+ padsFromPos.Delete();
+ if ( isMasked ) ++nMasked;
+ }
+ } // loop on slats
+ } // loop on neigbours
+
+ Double_t maskedProb = ((Double_t)nMasked)/3.;
+ if ( gRandom->Rndm() < maskedProb ) return kTRUE;
+
+ return kFALSE;
}
//_____________________________________________________________________________
-Bool_t AliMUONTrackHitPattern::PerformTrigTrackMatch(UShort_t &pattern,
- const AliMUONTriggerTrack* matchedTrigTrack,
- AliMUONVDigitStore& digitStore) const
+Bool_t AliMUONTrackHitPattern::PerformTrigTrackMatch(UInt_t &pattern,
+ const AliMUONTriggerTrack* matchedTrigTrack) const
{
//
/// It searches for matching digits around the trigger track.
//
+
+ AliCodeTimerAuto("",0);
enum {kBending, kNonBending};
- Int_t chOrder[fgkNchambers] = {0,2,1,3};
-
- TArrayF zRealMatch(fgkNchambers);
- TArrayF correctFactor(fgkNcathodes);
-
- Bool_t isMatch[fgkNcathodes];
- for(Int_t cath=0; cath<fgkNcathodes; cath++){
- isMatch[cath] = kFALSE;
- }
-
- TArrayF zMeanChamber(fgkNchambers);
- for(Int_t ch=0; ch<fgkNchambers; ch++){
- zMeanChamber[ch] = AliMUONConstants::DefaultChamberZ(10+ch);
- }
-
- TArrayI digitPerTrack(fgkNcathodes);
-
- Float_t trackIntersectCh[fgkNchambers][fgkNcathodes];
-
- TArrayI triggeredDigits;
- triggeredDigits.Set(fgkNchambers);
- triggeredDigits.Reset(-1);
-
- TArrayI trigScheme[fgkNcathodes];
- TArrayI slatThatTriggered[fgkNcathodes];
- for(Int_t cath=0; cath<fgkNcathodes; cath++){
- trigScheme[cath].Set(fgkNchambers);
- slatThatTriggered[cath].Set(fgkNchambers);
- }
-
- Int_t boardThatTriggered[fgkNchambers][fgkNcathodes][fgkNlocations];
- TArrayI nboard[fgkNcathodes];
- for(Int_t cath=0; cath<fgkNcathodes; cath++){
- nboard[cath].Set(fgkNlocations);
- }
- Int_t ineffBoard[fgkNlocations];
- for(Int_t loc=0; loc<fgkNlocations; loc++){
- ineffBoard[loc] = -1;
- }
+ TArrayF zMeanChamber(AliMUONConstants::NTriggerCh());
+ zMeanChamber[0] = matchedTrigTrack->GetZ11();
+ zMeanChamber[1] = matchedTrigTrack->GetZ11() + AliMUONConstants::DefaultChamberZ(11) - AliMUONConstants::DefaultChamberZ(10);
+ zMeanChamber[2] = matchedTrigTrack->GetZ21();
+ zMeanChamber[3] = matchedTrigTrack->GetZ21() + AliMUONConstants::DefaultChamberZ(13) - AliMUONConstants::DefaultChamberZ(12);
+ TArrayI digitPerTrack(2);
digitPerTrack.Reset();
- for(Int_t ch=0; ch<fgkNchambers; ch++){
- zRealMatch[ch] = zMeanChamber[ch];
- for(Int_t cath=0; cath<fgkNcathodes; cath++){
- for(Int_t loc=0; loc<fgkNlocations; loc++){
- boardThatTriggered[ch][cath][loc]=-1;
- }
- }
- }
-
- for(Int_t cath=0; cath<fgkNcathodes; cath++){
- slatThatTriggered[cath].Reset(-1);
- trigScheme[cath].Reset();
- }
-
- Bool_t isClearEvent = kTRUE;
-
- //Float_t x11 = matchedTrigTrack->GetX11();// x position (info from non-bending plane)
- Float_t y11 = matchedTrigTrack->GetY11();// y position (info from bending plane)
- Float_t thetaX = matchedTrigTrack->GetThetax();
- Float_t thetaY = matchedTrigTrack->GetThetay();
- for(Int_t ch=0; ch<fgkNchambers; ch++) { // chamber loop
- Int_t currCh = chOrder[ch];
- AliDebug(3, Form("zMeanChamber[%i] = %.2f\tzRealMatch[0] = %.2f\n",currCh,zMeanChamber[currCh],zRealMatch[0]));
-
- for(Int_t cath=0; cath<fgkNcathodes; cath++){
- correctFactor[cath]=1.;
- }
- // calculate corrections to trigger track theta
- if(ch>=1) correctFactor[kNonBending] = zMeanChamber[0]/zRealMatch[0];// corrects x position
- if(ch>=2) correctFactor[kBending] = (zMeanChamber[2] - zMeanChamber[0]) / (zRealMatch[2] - zRealMatch[0]);// corrects y position
+ Float_t trackIntersectCh[2];
+ Float_t slopeX = matchedTrigTrack->GetSlopeX();
+ Float_t slopeY = matchedTrigTrack->GetSlopeY();
+
+ Float_t z11 = matchedTrigTrack->GetZ11();
+ Float_t x11 = slopeX * z11;
+ Float_t y11 = matchedTrigTrack->GetY11();
+ Float_t z21 = matchedTrigTrack->GetZ21();
+ Float_t x21 = slopeX * z21;
+ Float_t y21 = y11 + slopeY * (z21-z11);
+ TVector3 vec11(x11, y11, z11), vec21(x21, y21, z21);
+
+ Int_t firstSlat = -1, firstBoard = -1;
+ AliESDMuonTrack::EAliTriggerChPatternFlag goodForEff = AliESDMuonTrack::kBoardEff;
+ TObjArray matchedPads(2), padsFromPos(2), validPads(2);
+ matchedPads.SetOwner(); padsFromPos.SetOwner();
+ Int_t matchedDetElemId[2], detElemIdFromTrack[2];
+
+ for(Int_t ich=0; ich<AliMUONConstants::NTriggerCh(); ich++) { // chamber loop
+
// searching track intersection with chambers (first approximation)
- Float_t deltaZ = zMeanChamber[currCh] - zMeanChamber[0];
- trackIntersectCh[currCh][0] = zMeanChamber[currCh] * TMath::Tan(thetaX) * correctFactor[kNonBending];// x position (info from non-bending plane)
- trackIntersectCh[currCh][1] = y11 + deltaZ * TMath::Tan(thetaY) * correctFactor[kBending];// y position (info from bending plane)
- Int_t detElemIdFromTrack = DetElemIdFromPos(trackIntersectCh[currCh][0], trackIntersectCh[currCh][1], 11+currCh, 0);
- if(detElemIdFromTrack<0) {
- AliDebug(1, "Warning: trigger track outside trigger chamber\n");
+ Float_t deltaZ = zMeanChamber[ich] - zMeanChamber[0];
+ trackIntersectCh[0] = zMeanChamber[ich] * slopeX;
+ trackIntersectCh[1] = y11 + deltaZ * slopeY;
+ Int_t nFound = DetElemIdFromPos(trackIntersectCh[0], trackIntersectCh[1], 11+ich, detElemIdFromTrack);
+ if ( nFound == 0 ) {
+ // track is rejected since the extrapolated track
+ // does not match a slat (border effects)
+ AliESDMuonTrack::AddEffInfo(pattern, AliESDMuonTrack::kTrackOutsideGeometry);
+ goodForEff = AliESDMuonTrack::kNoEff;
+ AliDebug(10, "Warning: trigger track outside trigger chamber\n");
continue;
}
-
- triggeredDigits[currCh] = FindPadMatchingTrig(digitStore, detElemIdFromTrack, trackIntersectCh[currCh], isMatch, nboard, zRealMatch, y11);
-
- // if FindPadMatchingTrig = -500 => too many digits matching pad =>
- // => Event not clear => Reject track
- if(triggeredDigits[currCh]<-100){
- isClearEvent = kFALSE;
- AliDebug(1, Form("Warning: track = %p (%i) matches many pads. Rejected!\n",(void *)matchedTrigTrack, detElemIdFromTrack));
- break;
+
+ matchedDetElemId[0] = matchedDetElemId[1] = detElemIdFromTrack[0];
+
+ if ( ! FindPadMatchingTrig(vec11, vec21, matchedDetElemId, matchedPads) ) {
+ // if ! FindPadMatchingTrig => too many digits matching pad =>
+ // => Event not clear => Do not use for efficiency calculation
+ AliESDMuonTrack::AddEffInfo(pattern, AliESDMuonTrack::kTrackMatchesManyPads);
+ goodForEff = AliESDMuonTrack::kNoEff;
+ AliDebug(10, Form("Warning: track = %p (%i) matches many pads. Rejected!\n",(void *)matchedTrigTrack, matchedDetElemId[0]));
}
-
- for(Int_t cath=0; cath<fgkNcathodes; cath++){
- if(!isMatch[cath]) continue;
- SetBit(pattern, cath, currCh);
- digitPerTrack[cath]++;
- trigScheme[cath][currCh]++;
- slatThatTriggered[cath][currCh] = detElemIdFromTrack;
- for(Int_t loc=0; loc<fgkNlocations; loc++){
- boardThatTriggered[currCh][cath][loc] = nboard[cath][loc];
+
+ Int_t nMatched = 0;
+
+ Int_t mostProbDEmatched = detElemIdFromTrack[0];
+ for ( Int_t icath=0; icath<2; icath++ ) {
+ if ( matchedPads.UncheckedAt(icath) ) {
+ nMatched++;
+ // Fill pattern anyway
+ AliESDMuonTrack::SetFiredChamber(pattern, icath, ich);
+ digitPerTrack[icath]++;
+ mostProbDEmatched = matchedDetElemId[icath];
}
}
- } // end chamber loop
-
- for(Int_t cath=0; cath<fgkNcathodes; cath++){
- if(digitPerTrack[cath]<3) isClearEvent = kFALSE;
- if(!isClearEvent) AliDebug(1, Form("Warning: found %i digits for trigger track cathode %i.\nRejecting event\n", digitPerTrack[cath],cath));
- }
-
- if(!isClearEvent) return kFALSE;
-
- Int_t goodForEff = kBoardEff;
-
- Int_t ineffSlat = -1;
- Int_t ineffDetElId = -1;
- Int_t firstSlat = slatThatTriggered[kBending][0]%100;
- if(firstSlat<0) firstSlat = slatThatTriggered[kBending][1]%100;
- Int_t firstBoard = boardThatTriggered[0][kBending][0];
- if(firstBoard<0) firstBoard = boardThatTriggered[1][kBending][0];
- for(Int_t ch=0; ch<fgkNchambers; ch++){
- Bool_t isCurrChIneff = kFALSE;
- Int_t currSlat = slatThatTriggered[kBending][ch]%100;
- if(currSlat<0){
- ineffDetElId = DetElemIdFromPos(trackIntersectCh[ch][0], trackIntersectCh[ch][1], 11+ch, kBending);
- currSlat = ineffDetElId%100;
- ineffSlat = currSlat;
- isCurrChIneff = kTRUE;
- }
- if(currSlat!=firstSlat) {
- AddEffInfo(pattern, 20, kChEff);
- return kTRUE;
- }
- Bool_t atLeastOneLoc=kFALSE;
- if(isCurrChIneff) LocalBoardFromPos(trackIntersectCh[ch][0], trackIntersectCh[ch][1], ineffDetElId, kBending, ineffBoard);
- for(Int_t loc=0; loc<fgkNlocations; loc++){
- Int_t currBoard = boardThatTriggered[ch][kBending][loc];
- if(isCurrChIneff) currBoard = ineffBoard[loc];
- if(currBoard==firstBoard){
- atLeastOneLoc=kTRUE;
- break;
+ Int_t mostProbDEfromTrack = detElemIdFromTrack[0];
+ for ( Int_t ifound=0; ifound<nFound; ifound++ ) {
+ if ( detElemIdFromTrack[ifound] == mostProbDEmatched ) {
+ mostProbDEfromTrack = mostProbDEmatched;
+ break;
}
}
- if(!atLeastOneLoc) goodForEff = kSlatEff;
+
+ if ( goodForEff == AliESDMuonTrack::kNoEff ) continue;
+
+ if ( nMatched < 2 ) PadsFromPos(vec11, vec21, mostProbDEfromTrack, padsFromPos);
+
+ for ( Int_t cath=0; cath<2; cath++ ) {
+ if ( matchedPads.UncheckedAt(cath) ) validPads.AddAt(matchedPads.UncheckedAt(cath),cath);
+ else if ( padsFromPos.UncheckedAt(cath) ) {
+ AliMpPad* currPad = (AliMpPad*)padsFromPos.UncheckedAt(cath);
+ validPads.AddAt(currPad,cath);
+ if ( IsMasked(*currPad, mostProbDEfromTrack, cath, vec11, vec21) ) {
+ // Check if strip was masked (if inefficient strip is found)
+ AliESDMuonTrack::AddEffInfo(pattern,AliESDMuonTrack::kTrackMatchesMasks); // pad is masked
+ AliDebug(10,Form("DetElemId %i cath %i board %i strip %i is masked: effFlag 0", mostProbDEfromTrack, cath, currPad->GetLocalBoardId(0), currPad->GetLocalBoardChannel(0)));
+ goodForEff = AliESDMuonTrack::kNoEff;
+ }
+ }
+ else goodForEff = AliESDMuonTrack::kNoEff;
+ } // loop on cathodes
+
+ if ( goodForEff != AliESDMuonTrack::kNoEff ) {
+
+ if ( nMatched == 0 && IsCloseToAccEdge(padsFromPos, mostProbDEfromTrack, trackIntersectCh) ) {
+ // Non of cathodes is fired.
+ // If we are close to the edge of the RPC
+ // it could be a problem of acceptance
+ AliESDMuonTrack::AddEffInfo(pattern, AliESDMuonTrack::kTrackOutsideGeometry);
+ goodForEff = AliESDMuonTrack::kNoEff;
+ AliDebug(10, "Warning: trigger track at the edge of the chamber\n");
+ }
+
+ Int_t currSlat = mostProbDEmatched%100;
+ if ( firstSlat < 0 ) firstSlat = currSlat;
+ else if ( currSlat != firstSlat ) {
+ goodForEff = AliESDMuonTrack::kChEff;
+ firstSlat = AliESDMuonTrack::kCrossDifferentSlats;
+ }
+
+ if ( firstBoard < 0 ) firstBoard = ((AliMpPad*)validPads[kBending])->GetLocalBoardId(0);
+
+ for ( Int_t cath=0; cath<2; cath++ ){
+
+ if ( goodForEff == AliESDMuonTrack::kBoardEff) {
+ Bool_t atLeastOneLoc = kFALSE;
+ AliMpPad* currPad = (AliMpPad*)validPads.UncheckedAt(cath);
+ for ( Int_t iloc=0; iloc<currPad->GetNofLocations(); iloc++) {
+ if ( currPad->GetLocalBoardId(iloc) == firstBoard ) {
+ atLeastOneLoc = kTRUE;
+ break;
+ }
+ } // loop on locations
+ if ( ! atLeastOneLoc ) goodForEff = AliESDMuonTrack::kSlatEff;
+ }
+ } // loop on cathodes
+ } // if track good for efficiency
+ matchedPads.Delete();
+ padsFromPos.Delete();
} // end chamber loop
- AddEffInfo(pattern, firstSlat, goodForEff);
+ if ( goodForEff == AliESDMuonTrack::kNoEff ) return kFALSE;
+
+ for(Int_t cath=0; cath<2; cath++){
+ if(digitPerTrack[cath]<3) {
+ // track is rejected since the number of associated
+ // digits found is less than 3.
+ AliESDMuonTrack::AddEffInfo(pattern, AliESDMuonTrack::kTrackMatchesFewPads);
+ goodForEff = AliESDMuonTrack::kNoEff;
+ AliDebug(10, Form("Warning: found %i digits for trigger track cathode %i.\nRejecting event\n", digitPerTrack[cath],cath));
+ }
+ } // loop on cathodes
+
+ if ( goodForEff == AliESDMuonTrack::kNoEff ) return kFALSE;
+
+ AliESDMuonTrack::AddEffInfo(pattern, firstSlat, firstBoard, goodForEff);
return kTRUE;
}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff