X-Git-Url: http://git.uio.no/git/?a=blobdiff_plain;f=PHOS%2FAliPHOSTrackSegmentMakerv1.cxx;h=8135da99385ab17e2f28a6e325d46a99a9d25d6c;hb=40035054a765c3382ea5aab0da93acfa1d456a14;hp=3a2289b234af696d31e23b5bef7b131e73c6c827;hpb=eec3ac528e47d839ed74e9051627ca1f927a917b;p=u%2Fmrichter%2FAliRoot.git diff --git a/PHOS/AliPHOSTrackSegmentMakerv1.cxx b/PHOS/AliPHOSTrackSegmentMakerv1.cxx index 3a2289b234a..8135da99385 100644 --- a/PHOS/AliPHOSTrackSegmentMakerv1.cxx +++ b/PHOS/AliPHOSTrackSegmentMakerv1.cxx @@ -13,158 +13,212 @@ * provided "as is" without express or implied warranty. * **************************************************************************/ /* $Id$ */ + +/* History of cvs commits: + * + * $Log$ + * Revision 1.93 2007/10/10 09:05:10 schutz + * Changing name QualAss to QA + * + * Revision 1.92 2007/08/28 12:55:08 policheh + * Loaders removed from the reconstruction code (C.Cheshkov) + * + * Revision 1.91 2007/08/07 14:12:03 kharlov + * Quality assurance added (Yves Schutz) + * + * Revision 1.90 2007/07/11 13:43:30 hristov + * New class AliESDEvent, backward compatibility with the old AliESD (Christian) + * + * Revision 1.89 2007/07/03 08:13:04 kharlov + * Bug fix in CPV local coordinates + * + * Revision 1.88 2007/06/27 09:11:07 kharlov + * Bug fix for CPV-EMC distance + * + * Revision 1.87 2007/05/04 14:49:29 policheh + * AliPHOSRecPoint inheritance from AliCluster + * + * Revision 1.86 2007/04/02 15:00:16 cvetan + * No more calls to gAlice in the reconstruction + * + * Revision 1.85 2007/03/28 19:18:15 kharlov + * RecPoints recalculation in TSM removed + * + * Revision 1.84 2007/03/07 07:01:21 hristov + * Fixing copy/paste erro. Additional protections + * + * Revision 1.83 2007/03/06 21:07:37 kharlov + * DP: xz CPV-EMC distance filled to TS + * + * Revision 1.82 2007/03/06 06:54:48 kharlov + * DP:Calculation of cluster properties dep. on vertex added + * + * Revision 1.81 2007/02/05 10:02:40 kharlov + * Module numbering is corrected + * + * Revision 1.80 2006/08/28 10:01:56 kharlov + * Effective C++ warnings fixed (Timur Pocheptsov) + * + * Revision 1.79 2006/04/25 12:41:15 hristov + * Moving non-persistent data to AliESDfriend (Yu.Belikov) + * + * Revision 1.78 2005/11/18 13:04:51 hristov + * Bug fix + * + * Revision 1.77 2005/11/17 23:34:36 hristov + * Corrected logics + * + * Revision 1.76 2005/11/17 22:29:12 hristov + * Faster version, no attempt to match tracks outside the PHOS acceptance + * + * Revision 1.75 2005/11/17 12:35:27 hristov + * Use references instead of objects. Avoid to create objects when they are not really needed + * + * Revision 1.74 2005/07/08 14:01:36 hristov + * Tracking in non-uniform nmagnetic field (Yu.Belikov) + * + * Revision 1.73 2005/05/28 14:19:05 schutz + * Compilation warnings fixed by T.P. + * + */ + //_________________________________________________________________________ // Implementation version 1 of algorithm class to construct PHOS track segments // Track segment for PHOS is list of -// EMC RecPoint + (possibly) CPV RecPoint + (possibly) PPSD RecPoint +// EMC RecPoint + (possibly) CPV RecPoint // To find TrackSegments we do the following: // for each EMC RecPoints we look at -// CPV/PPSD RecPoints in the radious fR0. +// CPV RecPoints in the radious fRcpv. // If there is such a CPV RecPoint, -// we make "Link" it is just indexes of EMC and CPV/PPSD RecPoint and distance +// we make "Link" it is just indexes of EMC and CPV RecPoint and distance // between them in the PHOS plane. // Then we sort "Links" and starting from the // least "Link" pointing to the unassined EMC and CPV RecPoints assing them to // new TrackSegment. -// If there is no CPV/PPSD RecPoint we make TrackSegment +// If there is no CPV RecPoint we make TrackSegment // consisting from EMC alone. There is no TrackSegments without EMC RecPoint. -// -// In principle this class should be called from AliPHOSReconstructioner, but +//// In principle this class should be called from AliPHOSReconstructor, but // one can use it as well in standalone mode. // Use case: -// root [0] AliPHOSTrackSegmentMakerv1 * t = new AliPHOSTrackSegmentMaker("galice.root") +// root [0] AliPHOSTrackSegmentMakerv1 * t = new AliPHOSTrackSegmentMaker("galice.root", "tracksegmentsname", "recpointsname") // Warning in : object already instantiated +// // reads gAlice from header file "galice.root", uses recpoints stored in the branch names "recpointsname" (default = "Default") +// // and saves recpoints in branch named "tracksegmentsname" (default = "recpointsname") // root [1] t->ExecuteTask() -// root [2] t->SetMaxEmcPpsdDistance(5) // root [3] t->SetTrackSegmentsBranch("max distance 5 cm") // root [4] t->ExecuteTask("deb all time") // -//*-- Author: Dmitri Peressounko (RRC Ki & SUBATECH) +//*-- Author: Dmitri Peressounko (RRC Ki & SUBATECH) & Yves Schutz (SUBATECH) // // --- ROOT system --- -#include "TROOT.h" -#include "TFile.h" +#include "TVector3.h" #include "TTree.h" -#include "TSystem.h" #include "TBenchmark.h" -// --- Standard library --- - -#include -#include +// --- Standard library --- +#include "Riostream.h" // --- AliRoot header files --- - +#include "AliPHOSGeometry.h" #include "AliPHOSTrackSegmentMakerv1.h" -#include "AliPHOSClusterizerv1.h" #include "AliPHOSTrackSegment.h" -#include "AliPHOSCpvRecPoint.h" -#include "AliPHOSPpsdRecPoint.h" #include "AliPHOSLink.h" -#include "AliPHOS.h" -#include "AliRun.h" +#include "AliESDEvent.h" +#include "AliESDtrack.h" +#include "AliPHOSEmcRecPoint.h" +#include "AliPHOSCpvRecPoint.h" +#include "AliLog.h" +#include "AliMagF.h" +#include "AliMagF.h" +#include "AliTracker.h" +#include "AliGeomManager.h" +#include "AliCluster.h" +#include "AliKalmanTrack.h" +#include "AliGlobalQADataMaker.h" +#include "AliVParticle.h" + ClassImp( AliPHOSTrackSegmentMakerv1) //____________________________________________________________________________ - AliPHOSTrackSegmentMakerv1::AliPHOSTrackSegmentMakerv1() : AliPHOSTrackSegmentMaker() +AliPHOSTrackSegmentMakerv1::AliPHOSTrackSegmentMakerv1() : + AliPHOSTrackSegmentMaker(), + fDefaultInit(kTRUE), + fWrite(kFALSE), + fNTrackSegments(0), + fRcpv(0.f), + fRtpc(0.f), + fVtx(0.f), + fLinkUpArray(0), + fEmcFirst(0), + fEmcLast(0), + fCpvFirst(0), + fCpvLast(0), + fModule(0), + fTrackSegments(NULL) { - // ctor - SetTitle("version 1") ; - SetName("AliPHOSTrackSegmentMaker") ; - fR0 = 10. ; - fEmcFirst = 0 ; - fEmcLast = 0 ; - fCpvFirst = 0 ; - fCpvLast = 0 ; - fPpsdFirst= 0 ; - fPpsdLast = 0 ; - fLinkLowArray = 0 ; - fLinkUpArray = 0 ; - fIsInitialized = kFALSE ; + // default ctor (to be used mainly by Streamer) + InitParameters() ; } + //____________________________________________________________________________ - AliPHOSTrackSegmentMakerv1::AliPHOSTrackSegmentMakerv1(const char* headerFile, const char* branchTitle): -AliPHOSTrackSegmentMaker() +AliPHOSTrackSegmentMakerv1::AliPHOSTrackSegmentMakerv1(AliPHOSGeometry *geom) : + AliPHOSTrackSegmentMaker(geom), + fDefaultInit(kFALSE), + fWrite(kFALSE), + fNTrackSegments(0), + fRcpv(0.f), + fRtpc(0.f), + fVtx(0.f), + fLinkUpArray(0), + fEmcFirst(0), + fEmcLast(0), + fCpvFirst(0), + fCpvLast(0), + fModule(0), + fTrackSegments(NULL) { // ctor - SetTitle("version 1") ; - SetName("AliPHOSTrackSegmentMaker") ; - fR0 = 10. ; - fEmcFirst = 0 ; - fEmcLast = 0 ; - fCpvFirst = 0 ; - fCpvLast = 0 ; - fPpsdFirst= 0 ; - fPpsdLast = 0 ; - - fHeaderFileName = headerFile ; - fRecPointsBranchTitle = branchTitle ; - - TFile * file = (TFile*) gROOT->GetFile(fHeaderFileName.Data() ) ; - - if(file == 0){ - file = new TFile(fHeaderFileName.Data(),"update") ; - gAlice = (AliRun *) file->Get("gAlice") ; - } - - AliPHOS * phos = (AliPHOS *) gAlice->GetDetector("PHOS") ; - fGeom = AliPHOSGeometry::GetInstance(phos->GetGeometry()->GetName(),phos->GetGeometry()->GetTitle() ); - - fEmcRecPoints = new TObjArray(200) ; - fCpvRecPoints = new TObjArray(200) ; - fClusterizer = new AliPHOSClusterizerv1() ; - - fTrackSegments = new TClonesArray("AliPHOSTrackSegment",200) ; - - fLinkLowArray = new TClonesArray("AliPHOSLink", 1000); - fLinkUpArray = new TClonesArray("AliPHOSLink", 1000); - - fIsInitialized = kTRUE ; - + InitParameters() ; + Init() ; + fESD = 0; } -//____________________________________________________________________________ -void AliPHOSTrackSegmentMakerv1::Init() -{ - // Make all memory allocations that are not possible in default constructor - - if(!fIsInitialized){ - if(fHeaderFileName.IsNull()) - fHeaderFileName = "galice.root" ; - - - TFile * file = (TFile*) gROOT->GetFile(fHeaderFileName.Data() ) ; - - if(file == 0){ - file = new TFile(fHeaderFileName.Data(),"update") ; - gAlice = (AliRun *) file->Get("gAlice") ; - } - - AliPHOS * phos = (AliPHOS *) gAlice->GetDetector("PHOS") ; - fGeom = AliPHOSGeometry::GetInstance(phos->GetGeometry()->GetName(),phos->GetGeometry()->GetTitle() ); - fEmcRecPoints = new TObjArray(200) ; - fCpvRecPoints = new TObjArray(200) ; - fClusterizer = new AliPHOSClusterizerv1() ; - - - fTrackSegments = new TClonesArray("AliPHOSTrackSegment",200) ; - - fLinkLowArray = new TClonesArray("AliPHOSLink", 1000); - fLinkUpArray = new TClonesArray("AliPHOSLink", 1000); - - fIsInitialized = kTRUE ; - } +AliPHOSTrackSegmentMakerv1::AliPHOSTrackSegmentMakerv1(const AliPHOSTrackSegmentMakerv1 & tsm) : + AliPHOSTrackSegmentMaker(tsm), + fDefaultInit(kFALSE), + fWrite(kFALSE), + fNTrackSegments(0), + fRcpv(0.f), + fRtpc(0.f), + fVtx(0.f), + fLinkUpArray(0), + fEmcFirst(0), + fEmcLast(0), + fCpvFirst(0), + fCpvLast(0), + fModule(0), + fTrackSegments(NULL) +{ + // cpy ctor: no implementation yet + // requested by the Coding Convention + Fatal("cpy ctor", "not implemented") ; } + //____________________________________________________________________________ AliPHOSTrackSegmentMakerv1::~AliPHOSTrackSegmentMakerv1() { // dtor - if(fLinkLowArray) delete fLinkLowArray ; - if(fLinkUpArray) delete fLinkUpArray ; + // fDefaultInit = kTRUE if TrackSegmentMaker created by default ctor (to get just the parameters) + if (!fDefaultInit) + delete fLinkUpArray ; + if (fTrackSegments) { + fTrackSegments->Delete(); + delete fTrackSegments; + } } //____________________________________________________________________________ @@ -172,129 +226,320 @@ void AliPHOSTrackSegmentMakerv1::FillOneModule() { // Finds first and last indexes between which // clusters from one PHOS module are - //First EMC clusters - Int_t totalEmc = fEmcRecPoints->GetEntriesFast() ; + Int_t totalEmc = fEMCRecPoints->GetEntriesFast() ; for(fEmcFirst = fEmcLast; (fEmcLast < totalEmc) && - (((AliPHOSRecPoint *) fEmcRecPoints->At(fEmcLast))->GetPHOSMod() == fModule ); + ((dynamic_cast(fEMCRecPoints->At(fEmcLast)))->GetPHOSMod() == fModule ); fEmcLast ++) ; - //Now CPV clusters - Int_t totalCpv = fCpvRecPoints->GetEntriesFast() ; + Int_t totalCpv = fCPVRecPoints->GetEntriesFast() ; - if(fModule <= fGeom->GetNCPVModules()){ // in CPV geometry - for(fCpvFirst = fCpvLast; (fCpvLast < totalCpv) && - (((AliPHOSRecPoint *) fCpvRecPoints->At(fCpvLast))->GetPHOSMod() == fModule ); - fCpvLast ++) ; - - fPpsdFirst = fCpvLast ; //To avoid scanning RecPoints between fPpsdFirst and fPpsdLast - fPpsdLast = fCpvLast ; //and to be ready to switch to mixed geometry - } - else{ //in PPSD geometry - fCpvLast = fPpsdLast ; - //Upper layer first - for(fCpvFirst = fCpvLast; (fCpvLast < totalCpv) && - (((AliPHOSPpsdRecPoint *) fCpvRecPoints->At(fCpvLast))->GetPHOSMod() == fModule ) && - (((AliPHOSPpsdRecPoint *) fCpvRecPoints->At(fCpvLast))->GetUp()) ; - fCpvLast ++) ; - - fPpsdLast= fCpvLast ; - for(fPpsdFirst = fPpsdLast; (fPpsdLast < totalCpv) && - (((AliPHOSPpsdRecPoint *) fCpvRecPoints->At(fPpsdLast))->GetPHOSMod() == fModule ) && - (!((AliPHOSPpsdRecPoint *) fCpvRecPoints->At(fPpsdLast))->GetUp()) ; - fPpsdLast ++) ; - } - + ((dynamic_cast(fCPVRecPoints->At(fCpvLast)))->GetPHOSMod() == fModule ); + fCpvLast ++) ; + } + //____________________________________________________________________________ -Float_t AliPHOSTrackSegmentMakerv1::GetDistanceInPHOSPlane(AliPHOSEmcRecPoint * emcClu,AliPHOSRecPoint * cpvClu, Bool_t &toofar)const +void AliPHOSTrackSegmentMakerv1::GetDistanceInPHOSPlane(AliPHOSEmcRecPoint * emcClu, + AliPHOSCpvRecPoint * cpvClu, + Int_t &trackindex, + Float_t &dx, Float_t &dz) const { - // Calculates the distance between the EMC RecPoint and the PPSD RecPoint + // Calculates the distance between the EMC RecPoint and the CPV RecPoint + // If no CPV, calculates the distance between the EMC RecPoint and the track + // prolongation to the PHOS module plane. // Clusters are sorted in "rows" and "columns" of width 1 cm - Float_t delta = 1 ; // Width of the rows in sorting of RecPoints (in cm) - // if you change this value, change it as well in xxxRecPoint::Compare() - Float_t r = fR0 ; - - TVector3 vecEmc ; - TVector3 vecCpv ; - - emcClu->GetLocalPosition(vecEmc) ; - cpvClu->GetLocalPosition(vecCpv) ; +// Float_t delta = 1 ; // Width of the rows in sorting of RecPoints (in cm) +// // if you change this value, change it as well in xxxRecPoint::Compare() + + if(!cpvClu) { + + trackindex = -1; + dx=999.; + dz=999.; + + if(!emcClu) { + return; + } + + // *** Start the matching + Int_t nt=fESD->GetNumberOfTracks(); + Int_t iPHOSMod = emcClu->GetPHOSMod() ; + //Calculate actual distance to PHOS module + TVector3 globaPos ; + fGeom->Local2Global(iPHOSMod, 0.,0., globaPos) ; + const Double_t rPHOS = globaPos.Pt() ; //Distance to PHOS module + const Double_t kYmax = 72.+10. ; //Size of the module (with some reserve) in phi direction + const Double_t kZmax = 64.+10. ; //Size of the module (with some reserve) in z direction + const Double_t kAlpha= 20./180.*TMath::Pi() ; //TPC sector angular size + Double_t minDistance = 1.e6; + + TMatrixF gmat; + TVector3 gposRecPoint; // global (in ALICE frame) position of rec. point + emcClu->GetGlobalPosition(gposRecPoint,gmat); + Double_t gposTrack[3] ; + + Double_t bz = AliTracker::GetBz() ; //B-Field for approximate matching + Double_t b[3]; + for (Int_t i=0; iGetTrack(i); + +// // Skip the tracks having "wrong" status (has to be checked/tuned) +// ULong_t status = esdTrack->GetStatus(); +// if ((status & AliESDtrack::kTRDout) == 0) continue; +// if ((status & AliESDtrack::kTRDrefit) == 1) continue; + + AliExternalTrackParam t(*esdTrack); + Int_t isec=Int_t(t.GetAlpha()/kAlpha); + Int_t imod=-isec-2; // PHOS module + + Double_t y; // Some tracks do not reach the PHOS + if (!t.GetYAt(rPHOS,bz,y)) continue; // because of the bending + + Double_t z; t.GetZAt(rPHOS,bz,z); + if (TMath::Abs(z) > kZmax) continue; // Some tracks miss the PHOS in Z + + Bool_t ok=kTRUE; + while (TMath::Abs(y) > kYmax) { // Find the matching module + Double_t alp=t.GetAlpha(); + if (y > kYmax) { + if (!t.Rotate(alp+kAlpha)) {ok=kFALSE; break;} + imod--; + } else if (y < -kYmax) { + if (!t.Rotate(alp-kAlpha)) {ok=kFALSE; break;} + imod++; + } + if (!t.GetYAt(rPHOS,bz,y)) {ok=kFALSE; break;} + } + if (!ok) continue; // Track rotation failed + + + if(imod!= iPHOSMod-1) + continue; //not even approximate coincidence + + //t.CorrectForMaterial(...); // Correct for the TOF material, if needed + t.GetBxByBz(b) ; + t.PropagateToBxByBz(rPHOS,b); // Propagate to the matching module + t.GetXYZ(gposTrack) ; + + Double_t ddx = gposTrack[0] - gposRecPoint.X(), ddy = gposTrack[1] - gposRecPoint.Y(), ddz = gposTrack[2] - gposRecPoint.Z(); + Double_t d2 = ddx*ddx + ddy*ddy + ddz*ddz; + if(d2 < minDistance) { + dx = TMath::Sign(TMath::Sqrt(ddx*ddx + ddy*ddy),ddx) ; + dz = ddz ; + trackindex=i; + minDistance=d2 ; + } + } + return ; + } + - if(emcClu->GetPHOSMod() == cpvClu->GetPHOSMod()){ - if(vecCpv.X() <= vecEmc.X() + fR0 + 2*delta ){ + TVector3 emcGlobal; + fGeom->GetGlobalPHOS((AliPHOSRecPoint*)emcClu,emcGlobal); + + // Radius from IP to current point + Double_t rEMC = TMath::Abs(emcGlobal.Pt()); + + // Extrapolate the global track direction to EMC + // and find the closest track + + Int_t nTracks = fESD->GetNumberOfTracks(); + + AliESDtrack *track; + Double_t xyz[] = {-1,-1,-1}; + Double_t pxyz[3]; + Double_t zEMC,xEMC; + Int_t module; + TVector3 vecP; + TVector3 locClu; + + Float_t minDistance = 1.e6; + Float_t dr; + + for (Int_t iTrack=0; iTrackGetTrack(iTrack); + if (!track->GetXYZAt(rEMC, fESD->GetMagneticField(), xyz)) continue; + + AliDebug(1,Form("Event %d, iTrack: %d, (%.3f,%.3f,%.3f)", + fESD->GetEventNumberInFile(),iTrack,xyz[0],xyz[1],xyz[2])); + + if (track->GetPxPyPzAt(rEMC,fESD->GetMagneticField(),pxyz)) { - vecCpv = vecCpv - vecEmc ; - r = vecCpv.Mag() ; - toofar = kFALSE ; + vecP.SetXYZ(pxyz[0],pxyz[1],pxyz[2]); + fGeom->ImpactOnEmc(xyz,vecP.Theta(),vecP.Phi(),module,zEMC,xEMC) ; - } // if xPpsd >= xEmc + ... - else - toofar = kTRUE ; + if(!module) continue; + AliDebug(1,Form("\t\tTrack hit PHOS! Module: %d, (x,z)=(%.3f,%.3f)",module,xEMC,zEMC)); + + if(emcClu->GetPHOSMod() != module) continue; + + // match track to EMC cluster + emcClu->GetLocalPosition(locClu); + + Float_t delta_x = xEMC - locClu.X(); + Float_t delta_z = zEMC - locClu.Z(); + dr = TMath::Sqrt(delta_x*delta_x + delta_z*delta_z); + AliDebug(1,Form("\tMatch iTrack=%d: (dx,dz)=(%.3f,%.3f)",iTrack,delta_x,delta_z)); + + if(dr=0) + AliDebug(1,Form("\t\tBest match for (xClu,zClu,eClu)=(%.3f,%.3f,%.3f): iTrack=%d, dR=%.3f", + locClu.X(),locClu.Z(),emcClu->GetEnergy(), + trackindex,TMath::Sqrt(dx*dx+dz*dz))); + return; + + Float_t distance2Track = fRtpc ; + + trackindex = -1 ; // closest track within fRCpv + + TVector3 vecEmc ; // Local position of EMC recpoint + TVector3 vecPloc ; // Momentum direction at CPV plain + + //toofar = kTRUE ; + if(emcClu->GetPHOSMod() != cpvClu->GetPHOSMod()){ + dx=999. ; + dz=999. ; + return ; + } + + emcClu->GetLocalPosition(vecEmc) ; + + Double_t xCPV,zCPV ; //EMC-projected coordinates of CPV cluster + TVector3 cpvGlobal; // Global position of the CPV recpoint + fGeom->GetGlobalPHOS((AliPHOSRecPoint*)cpvClu,cpvGlobal); + Double_t vtxCPV[3]={cpvGlobal.X(),cpvGlobal.Y(),cpvGlobal.Z()} ; + Int_t dummyMod ; + + if (fESD == 0x0) { + //if no track information available, assume straight line from IP to emcal + fGeom->ImpactOnEmc(vtxCPV,cpvGlobal.Theta(),cpvGlobal.Phi(),dummyMod,zCPV,xCPV) ; + dx=xCPV - vecEmc.X() ; + dz=zCPV - vecEmc.Z() ; + return ; } - else - toofar = kTRUE ; + + //if there is ESD try to correct distance using TPC information on particle direct in CPV + if (fESD != 0x0) { + + Double_t rCPV = cpvGlobal.Pt() ;// Radius from IP to current point + + // Extrapolate the global track direction if any to CPV and find the closest track + Int_t iClosestTrack = -1; + TVector3 inPHOS ; + + for (Int_t iTrack=0; iTrackGetTrack(iTrack); + if (!track->GetXYZAt(rCPV, fESD->GetMagneticField(), xyz)) + continue; //track coord on the cylinder of PHOS radius + if ((TMath::Abs(xyz[0])+TMath::Abs(xyz[1])+TMath::Abs(xyz[2]))<=0) + continue; + //Check if this track hits PHOS + inPHOS.SetXYZ(xyz[0],xyz[1],xyz[2]); + distance2Track = inPHOS.Angle(cpvGlobal) ; + // Find the closest track to the CPV recpoint + if (distance2Track < minDistance) { + minDistance = distance2Track; + iClosestTrack = iTrack; + } + } - //toofar = kFALSE ; - + if (iClosestTrack != -1) { + track = fESD->GetTrack(iClosestTrack); + if (track->GetPxPyPzAt(rCPV, fESD->GetMagneticField(), pxyz)) { // track momentum ibid. + vecP.SetXYZ(pxyz[0],pxyz[1],pxyz[2]); + fGeom->ImpactOnEmc(vtxCPV,vecP.Theta(),vecP.Phi(),dummyMod,zCPV,xCPV) ; + } + } + + if(minDistance < fRtpc ){ + trackindex = iClosestTrack ; + } + } + if(trackindex!=-1){ + // If the closest global track is found, calculate EMC-CPV distance from it + dx=xCPV - vecEmc.X() ; + dz=zCPV - vecEmc.Z() ; + } + else{ + // If no global track was found, just take the nearest CPV point + fGeom->ImpactOnEmc(vtxCPV,cpvGlobal.Theta(),cpvGlobal.Phi(),dummyMod,zCPV,xCPV) ; + dx=xCPV - vecEmc.X() ; + dz=zCPV - vecEmc.Z() ; + } + return ; +} +//____________________________________________________________________________ +void AliPHOSTrackSegmentMakerv1::Init() +{ + // Make all memory allocations that are not possible in default constructor - return r ; + fLinkUpArray = new TClonesArray("AliPHOSLink", 1000); + fTrackSegments = new TClonesArray("AliPHOSTrackSegment",100); + fTrackSegments->SetName("TRACKS"); } +//____________________________________________________________________________ +void AliPHOSTrackSegmentMakerv1::InitParameters() +{ + //Initializes parameters + fRcpv = 10. ; + fRtpc = 4. ; + fEmcFirst = 0 ; + fEmcLast = 0 ; + fCpvFirst = 0 ; + fCpvLast = 0 ; + fLinkUpArray = 0 ; + fWrite = kTRUE ; +} + + //____________________________________________________________________________ void AliPHOSTrackSegmentMakerv1::MakeLinks()const { - // Finds distances (links) between all EMC and PPSD clusters, - // which are not further apart from each other than fR0 + // Finds distances (links) between all EMC and CPV clusters, + // which are not further apart from each other than fRcpv // and sort them in accordance with this distance fLinkUpArray->Clear() ; - fLinkLowArray->Clear() ; - AliPHOSRecPoint * ppsd ; - AliPHOSRecPoint * cpv ; + AliPHOSCpvRecPoint * cpv ; AliPHOSEmcRecPoint * emcclu ; - Int_t iLinkLow = 0 ; Int_t iLinkUp = 0 ; Int_t iEmcRP; for(iEmcRP = fEmcFirst; iEmcRP < fEmcLast; iEmcRP++ ) { - emcclu = (AliPHOSEmcRecPoint *) fEmcRecPoints->At(iEmcRP) ; - - Bool_t toofar ; - Int_t iPpsd ; - for(iPpsd = fPpsdFirst; iPpsd < fPpsdLast;iPpsd++ ) { - - ppsd = (AliPHOSRecPoint *) fCpvRecPoints->At(iPpsd) ; - Float_t r = GetDistanceInPHOSPlane(emcclu, ppsd, toofar) ; + emcclu = dynamic_cast(fEMCRecPoints->At(iEmcRP)) ; - if(toofar) - break ; - if(r < fR0) - new ((*fLinkLowArray)[iLinkLow++]) AliPHOSLink(r, iEmcRP, iPpsd) ; - } - + //Bool_t toofar ; Int_t iCpv = 0 ; for(iCpv = fCpvFirst; iCpv < fCpvLast;iCpv++ ) { - cpv = (AliPHOSRecPoint *) fCpvRecPoints->At(iCpv) ; - Float_t r = GetDistanceInPHOSPlane(emcclu, cpv, toofar) ; - - if(toofar) - break ; - if(r < fR0) { - new ((*fLinkUpArray)[iLinkUp++]) AliPHOSLink(r, iEmcRP, iCpv) ; + cpv = dynamic_cast(fCPVRecPoints->At(iCpv)) ; + Int_t track = -1 ; + Float_t dx,dz ; + GetDistanceInPHOSPlane(emcclu, cpv, track,dx,dz) ; + if(TMath::Sqrt(dx*dx+dz*dz) < fRcpv ){ + new ((*fLinkUpArray)[iLinkUp++]) AliPHOSLink(dx, dz, iEmcRP, iCpv, track) ; } } } - fLinkLowArray->Sort() ; //first links with smallest distances - fLinkUpArray->Sort() ; + fLinkUpArray->Sort() ; //first links with smallest distances } //____________________________________________________________________________ @@ -304,8 +549,8 @@ void AliPHOSTrackSegmentMakerv1::MakePairs() // link with the least distance between EMC and CPV and pointing to still // unassigned RecParticles. We assign these RecPoints to TrackSegment and // remove them from the list of "unassigned". - - //Make arrays to mark clusters already chousen + + //Make arrays to mark clusters already chosen Int_t * emcExist = 0; if(fEmcLast > fEmcFirst) emcExist = new Int_t[fEmcLast-fEmcFirst] ; @@ -320,338 +565,132 @@ void AliPHOSTrackSegmentMakerv1::MakePairs() for(index = 0; index fPpsdFirst) - ppsdExist = new Bool_t[fPpsdLast-fPpsdFirst] ; - for(index = 0; index GetEmc()-fEmcFirst]> 0) && - ppsdExist[linkLow->GetPpsd()-fPpsdFirst] ){ // RecPoints not removed yet - new ((*fTrackSegments)[fNTrackSegments]) AliPHOSTrackSegment((AliPHOSEmcRecPoint *) fEmcRecPoints->At(linkLow->GetEmc()), - nullpointer, - (AliPHOSRecPoint *)fCpvRecPoints->At(linkLow->GetPpsd()) ) ; - - ((AliPHOSTrackSegment* )fTrackSegments->At(fNTrackSegments))->SetIndexInList(fNTrackSegments); - //replace index of emc to negative and shifted index of TS - emcExist[linkLow->GetEmc()-fEmcFirst] = -2 - fNTrackSegments ; - //mark ppsd as used - ppsdExist[linkLow->GetPpsd()-fPpsdFirst] = kFALSE ; - fNTrackSegments++ ; - } - } - + AliPHOSCpvRecPoint * nullpointer = 0 ; + + while ( (linkUp = static_cast(nextUp()) ) ){ - while ( (linkUp = (AliPHOSLink *)nextUp() ) ){ - if(emcExist[linkUp->GetEmc()-fEmcFirst] != -1){ //without ppsd Up yet + if(emcExist[linkUp->GetEmc()-fEmcFirst] != -1){ - if(cpvExist[linkUp->GetPpsd()-fCpvFirst]){ //CPV still exist - - if(emcExist[linkUp->GetEmc()-fEmcFirst] > 0){ //without ppsd Low => create new TS - - new ((* fTrackSegments)[fNTrackSegments]) AliPHOSTrackSegment((AliPHOSEmcRecPoint *) fEmcRecPoints->At(linkUp->GetEmc()) , - (AliPHOSRecPoint *)fCpvRecPoints->At(linkUp->GetPpsd()), - nullpointer) ; - ((AliPHOSTrackSegment *) fTrackSegments->At(fNTrackSegments))->SetIndexInList(fNTrackSegments); - fNTrackSegments++ ; - } - else{ // append ppsd Up to existing TS - ((AliPHOSTrackSegment *)fTrackSegments->At(-2-emcExist[linkUp->GetEmc()-fEmcFirst]))->SetCpvRecPoint((AliPHOSCpvRecPoint *)fCpvRecPoints->At(linkUp->GetPpsd())); - } - - emcExist[linkUp->GetEmc()-fEmcFirst] = -1 ; //Mark emc that Cpv was found - //mark CPV recpoint as already used - cpvExist[linkUp->GetPpsd()-fCpvFirst] = kFALSE ; - } //if ppsdUp still exist + if(cpvExist[linkUp->GetCpv()-fCpvFirst]){ //CPV still exist + Float_t dx,dz ; + linkUp->GetXZ(dx,dz) ; + new ((* fTrackSegments)[fNTrackSegments]) + AliPHOSTrackSegment(dynamic_cast(fEMCRecPoints->At(linkUp->GetEmc())) , + dynamic_cast(fCPVRecPoints->At(linkUp->GetCpv())) , + linkUp->GetTrack(),dx,dz) ; + + (dynamic_cast(fTrackSegments->At(fNTrackSegments)))->SetIndexInList(fNTrackSegments); + fNTrackSegments++ ; + emcExist[linkUp->GetEmc()-fEmcFirst] = -1 ; //Mark emc that Cpv was found + //mark CPV recpoint as already used + cpvExist[linkUp->GetCpv()-fCpvFirst] = kFALSE ; + } //if CpvUp still exist } - } + } - //look through emc recPoints left without CPV/PPSD + //look through emc recPoints left without CPV if(emcExist){ //if there is emc rec point Int_t iEmcRP ; for(iEmcRP = 0; iEmcRP < fEmcLast-fEmcFirst ; iEmcRP++ ){ if(emcExist[iEmcRP] > 0 ){ - new ((*fTrackSegments)[fNTrackSegments]) AliPHOSTrackSegment((AliPHOSEmcRecPoint *)fEmcRecPoints->At(iEmcRP+fEmcFirst), - nullpointer, - nullpointer ) ; - ((AliPHOSTrackSegment *) fTrackSegments->At(fNTrackSegments))->SetIndexInList(fNTrackSegments); + Int_t track = -1 ; + Float_t dx,dz ; + AliPHOSEmcRecPoint *emcclu = dynamic_cast(fEMCRecPoints->At(iEmcRP+fEmcFirst)); + GetDistanceInPHOSPlane(emcclu, 0, track,dx,dz); + if(track<0) + new ((*fTrackSegments)[fNTrackSegments]) AliPHOSTrackSegment(emcclu,nullpointer) ; + else + new ((*fTrackSegments)[fNTrackSegments]) AliPHOSTrackSegment(emcclu,0,track,dx,dz); + (dynamic_cast(fTrackSegments->At(fNTrackSegments)))->SetIndexInList(fNTrackSegments); fNTrackSegments++; } } } - + delete [] emcExist ; + delete [] cpvExist ; } //____________________________________________________________________________ -void AliPHOSTrackSegmentMakerv1::Exec(Option_t * option) +void AliPHOSTrackSegmentMakerv1::Clusters2TrackSegments(Option_t *option) { - // STEERing method - - if(! fIsInitialized) Init() ; - - if(strstr(option,"tim")) - gBenchmark->Start("PHOSTSMaker"); - - Int_t nEvents = (Int_t) gAlice->TreeE()->GetEntries() ; + // Steering method to perform track segment construction for the current event + // Returns an array with the found track-segments. - for(fEvent = 0;fEvent< nEvents; fEvent++){ - if(!ReadRecPoints()) //reads RecPoints for event fEvent - return; - - for(fModule = 1; fModule <= fGeom->GetNModules() ; fModule++ ){ - - FillOneModule() ; - - MakeLinks() ; - - MakePairs() ; - - } - - WriteTrackSegments() ; - if(strstr(option,"deb")) - PrintTrackSegments(option) ; - } - - if(strstr(option,"tim")){ - gBenchmark->Stop("PHOSTSMaker"); - cout << "AliPHOSTSMaker:" << endl ; - cout << " took " << gBenchmark->GetCpuTime("PHOSTSMaker") << " seconds for making TS " - << gBenchmark->GetCpuTime("PHOSTSMaker")/nEvents << " seconds per event " << endl ; - cout << endl ; - } - - -} -//____________________________________________________________________________ -void AliPHOSTrackSegmentMakerv1::Print(Option_t * option)const -{ - // Print TrackSegmentMaker parameters - - if(fIsInitialized){ - cout << "======== AliPHOSTrackSegmentMakerv1 ========" << endl ; - cout << "Making Track segments "<< endl ; - cout << " Headers file: " << fHeaderFileName.Data() << endl ; - cout << " RecPoints branch file name: " << fRecPointsBranchTitle.Data() << endl ; - cout << " TrackSegments Branch file name: " << fTSBranchTitle.Data() << endl ; - cout << "with parameters: " << endl ; - cout << " Maximal EMC - CPV (PPSD) distance (cm)" << fR0 << endl ; - cout << "============================================" << endl ; + if(strstr(option,"tim")) + gBenchmark->Start("PHOSTSMaker"); + + if(strstr(option,"print")) { + Print() ; + return ; } - else - cout << "AliPHOSTrackSegmentMakerv1 not initialized " << endl ; -} -//____________________________________________________________________________ -Bool_t AliPHOSTrackSegmentMakerv1::ReadRecPoints() -{ - // Reads Emc and CPV recPoints with given title (fRecPointsBranchTitle) - // made previously with Clusterizer. - - + //Make some initializations - fEmcRecPoints->Clear() ; - fCpvRecPoints->Clear() ; - fTrackSegments->Clear() ; fNTrackSegments = 0 ; fEmcFirst = 0 ; fEmcLast = 0 ; fCpvFirst = 0 ; fCpvLast = 0 ; - fPpsdFirst= 0 ; - fPpsdLast = 0 ; + fTrackSegments->Clear(); - gAlice->GetEvent(fEvent) ; + // if(!ReadRecPoints(ievent)) continue; //reads RecPoints for event ievent - // Get TreeR header from file - if(gAlice->TreeR()==0){ - char treeName[20]; - sprintf(treeName,"TreeR%d",fEvent); - cout << "Error in AliPHOSTrackSegmentMakerv1 : no "<GetNModules() ; fModule++ ) { + FillOneModule() ; + MakeLinks() ; + MakePairs() ; } - - - //Find RecPoints with title fRecPointsBranchTitle - TBranch * emcBranch = 0; - TBranch * cpvBranch = 0; - TBranch * clusterizerBranch = 0; - - TObjArray * branches = gAlice->TreeR()->GetListOfBranches() ; - Int_t ibranch; - Bool_t emcNotFound = kTRUE ; - Bool_t cpvNotFound = kTRUE ; - Bool_t clusterizerNotFound = kTRUE ; - - for(ibranch = 0;ibranch GetEntries();ibranch++){ - - if(emcNotFound){ - emcBranch=(TBranch *) branches->At(ibranch) ; - if( fRecPointsBranchTitle.CompareTo(emcBranch->GetTitle())==0 ) - if( strcmp(emcBranch->GetName(),"PHOSEmcRP") == 0) { - emcNotFound = kFALSE ; - } - } - - if(cpvNotFound){ - cpvBranch=(TBranch *) branches->At(ibranch) ; - if( fRecPointsBranchTitle.CompareTo(cpvBranch->GetTitle())==0 ) - if( strcmp(cpvBranch->GetName(),"PHOSCpvRP") == 0) - cpvNotFound = kFALSE ; - } - - if(clusterizerNotFound){ - clusterizerBranch = (TBranch *) branches->At(ibranch) ; - if( fRecPointsBranchTitle.CompareTo(clusterizerBranch->GetTitle()) == 0) - if( strcmp(clusterizerBranch->GetName(),"AliPHOSClusterizer") == 0) - clusterizerNotFound = kFALSE ; - } - } + if(strstr(option,"deb")) + PrintTrackSegments(option); - if(clusterizerNotFound || emcNotFound || cpvNotFound){ - cout << "AliPHOSTrackSegmentMakerv1: " << endl ; - cout << " Can't find Branch with RecPoints or Clusterizer " ; - cout << " Do nothing" <Stop("PHOSTSMaker"); + Info("Exec", "took %f seconds for making TS", + gBenchmark->GetCpuTime("PHOSTSMaker")); } - - emcBranch->SetAddress(&fEmcRecPoints) ; - cpvBranch->SetAddress(&fCpvRecPoints) ; - clusterizerBranch->SetAddress(&fClusterizer) ; - - emcBranch->GetEntry(0) ; - cpvBranch->GetEntry(0) ; - clusterizerBranch->GetEntry(0) ; - - return kTRUE ; - } + //____________________________________________________________________________ -void AliPHOSTrackSegmentMakerv1::WriteTrackSegments() +void AliPHOSTrackSegmentMakerv1::Print(const Option_t *)const { - // Writes found TrackSegments to TreeR. Creates branches - // "PHOSTS" and "AliPHOSTrackSegmentMaker" with the same title. - // In the former branch found TrackSegments are stored, while - // in the latter all parameters, with which TS were made. - // ROOT does not allow overwriting existing branches, therefore - // first we check, if branches with the same title already exist. - // If yes - exits without writing. - - //First, check, if branches already exist - TBranch * tsMakerBranch = 0; - TBranch * tsBranch = 0; - - TObjArray * branches = gAlice->TreeR()->GetListOfBranches() ; - Int_t ibranch; - Bool_t tsMakerNotFound = kTRUE ; - Bool_t tsNotFound = kTRUE ; - - for(ibranch = 0;(ibranch GetEntries())&&(tsMakerNotFound||tsNotFound);ibranch++){ - if(tsMakerNotFound){ - tsMakerBranch=(TBranch *) branches->At(ibranch) ; - if( (strcmp(tsMakerBranch->GetName(),"AliPHOSTrackSegmentMaker") == 0) && - (fTSBranchTitle.CompareTo( tsMakerBranch->GetTitle())==0 )) - tsMakerNotFound = kFALSE ; - } - if(tsNotFound){ - tsBranch=(TBranch *) branches->At(ibranch) ; - if( (strcmp(tsBranch->GetName(),"PHOSTS") == 0) && - (fTSBranchTitle.CompareTo( tsBranch->GetTitle())==0 )) - tsNotFound = kFALSE ; - } - } - - if(!(tsMakerNotFound && tsNotFound )){ - cout << "AliPHOSTrackSegmentMakerv1 error:"<< endl ; - cout << " Branches PHOSTS and AliPHOSTrackSegementMaker " << endl ; - cout << " with title '"<Getenv("CONFIG_SPLIT_FILE")!=0){ //generating file name - filename = new char[strlen(gAlice->GetBaseFile())+20] ; - sprintf(filename,"%s/PHOS.Reco.root",gAlice->GetBaseFile()) ; + TString message("") ; + if( strcmp(GetName(), "") != 0 ) { + message = "\n======== AliPHOSTrackSegmentMakerv1 ========\n" ; + message += "Making Track segments\n" ; + message += "with parameters:\n" ; + message += " Maximal EMC - CPV distance (cm) %f\n" ; + message += "============================================\n" ; + Info("Print", message.Data(),fRcpv) ; } - - TDirectory *cwd = gDirectory; - - //First TS - Int_t bufferSize = 32000 ; - tsBranch = gAlice->TreeR()->Branch("PHOSTS",&fTrackSegments,bufferSize); - tsBranch->SetTitle(fTSBranchTitle.Data()); - if (filename) { - tsBranch->SetFile(filename); - TIter next( tsBranch->GetListOfBranches()); - TBranch * sb ; - while ((sb=(TBranch*)next())) { - sb->SetFile(filename); - } - cwd->cd(); - } - - //Second -TSMaker - Int_t splitlevel = 0 ; - AliPHOSTrackSegmentMakerv1 * ts = this ; - tsMakerBranch = gAlice->TreeR()->Branch("AliPHOSTrackSegmentMaker","AliPHOSTrackSegmentMakerv1", - &ts,bufferSize,splitlevel); - tsMakerBranch->SetTitle(fTSBranchTitle.Data()); - if (filename) { - tsMakerBranch->SetFile(filename); - TIter next( tsMakerBranch->GetListOfBranches()); - TBranch * sb; - while ((sb=(TBranch*)next())) { - sb->SetFile(filename); - } - cwd->cd(); - } - - tsBranch->Fill() ; - tsMakerBranch->Fill() ; - - gAlice->TreeR()->Write(0,kOverwrite) ; - + else + Info("Print", "AliPHOSTrackSegmentMakerv1 not initialized ") ; } - //____________________________________________________________________________ void AliPHOSTrackSegmentMakerv1::PrintTrackSegments(Option_t * option) { // option deb - prints # of found TrackSegments // option deb all - prints as well indexed of found RecParticles assigned to the TS - - cout << "AliPHOSTrackSegmentMakerv1: " << endl ; - cout << " Found " << fTrackSegments->GetEntriesFast() << " trackSegments " << endl ; + Info("PrintTrackSegments", "Results from TrackSegmentMaker:") ; + printf(" Found %d TrackSegments\n", fTrackSegments->GetEntriesFast() ); if(strstr(option,"all")) { // printing found TS - cout << "TrackSegment # " << " EMC RP# " << " CPV RP# " << " PPSD RP#" << endl ; - + printf("TrackSegment # EMC RP# CPV RP#\n") ; Int_t index; for (index = 0 ; index GetEntriesFast() ; index++) { AliPHOSTrackSegment * ts = (AliPHOSTrackSegment * )fTrackSegments->At(index) ; - cout<<" "<< setw(4) << ts->GetIndexInList() << " " - <GetEmcIndex()<< " " - <GetCpvIndex()<< " " - <GetPpsdIndex()<< endl ; + printf(" %d %d %d \n", ts->GetIndexInList(), ts->GetEmcIndex(), ts->GetCpvIndex() ) ; } - - cout << "-------------------------------------------------------"<< endl ; } } +