#include <AliRun.h> //GetTrackPoint(),PropagateBack()
#include <AliTrackPointArray.h> //GetTrackPoint()
#include <AliAlignObj.h> //GetTrackPoint()
+#include <AliCDBManager.h>
+#include <AliCDBEntry.h>
+
ClassImp(AliHMPIDTracker)
+//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+AliHMPIDTracker::AliHMPIDTracker():AliTracker()
+{
+// ctor
+ fClu=new TObjArray(AliHMPIDDigit::kMaxCh+1);
+ fClu->SetOwner(kTRUE);
+ for(int i=AliHMPIDDigit::kMinCh;i<=AliHMPIDDigit::kMaxCh;i++) fClu->AddAt(new TClonesArray("AliHMPIDCluster"),i);
+}
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Bool_t AliHMPIDTracker::GetTrackPoint(Int_t idx, AliTrackPoint& point) const
{
Int_t iCham=idx/1000000;
Int_t iClu=idx%1000000;
point.SetVolumeID(AliAlignObj::LayerToVolUID(AliAlignObj::kHMPID,iCham-1));//layer and chamber number
- AliHMPID *pRich=((AliHMPID*)gAlice->GetDetector("HMPID"));
- AliHMPIDCluster *pClu=(AliHMPIDCluster*)pRich->CluLst(iCham)->UncheckedAt(iClu);//get pointer to cluster
+ TClonesArray *pArr=(TClonesArray*)(*fClu)[iCham];
+ AliHMPIDCluster *pClu=(AliHMPIDCluster*)pArr->UncheckedAt(iClu);//get pointer to cluster
Double_t mars[3];
AliHMPIDParam::Instance()->Lors2Mars(iCham,pClu->X(),pClu->Y(),mars);
point.SetXYZ(mars[0],mars[1],mars[2]);
// Interface callback methode invoked from AliReconstruction::RunTracking() to load HMPID clusters before PropagateBack() gets control
// Arguments: pCluTree- pointer to clusters tree got by AliHMPIDLoader::LoadRecPoints("read") then AliHMPIDLoader::TreeR()
// Returns: error code (currently ignored in AliReconstruction::RunTraking())
- AliDebug(1,"Start."); pCluTree->GetEntry(0); AliDebug(1,"Stop."); return 0;
+ AliDebug(1,"Start.");
+ for(int i=AliHMPIDDigit::kMinCh;i<=AliHMPIDDigit::kMaxCh;i++) pCluTree->SetBranchAddress(Form("HMPID%d",i),&((*fClu)[i]));
+ pCluTree->GetEntry(0);
+ AliDebug(1,"Stop.");
+ return 0;
}
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
-Int_t AliHMPIDTracker::Recon(AliESD *pESD,TObjArray *pCluAll)
+Int_t AliHMPIDTracker::PropagateBack(AliESD *pEsd)
{
-// Interface callback methode invoked by AliRecontruction::RunTracking() during tracking after TOF. It's done just once per event
-// Arguments: pESD - pointer to Event Summary Data class instance which contains a list of tracks
+// This method defined as pure virtual in AliTracker. It is invoked from AliReconstruction::RunTracking() after invocation of AliTracker::LoadClusters()
+// Agruments: pEsd - pointer to ESD
+// Returns: error code
+ AliCDBEntry *pNmeanEnt =AliCDBManager::Instance()->Get("HMPID/Calib/Nmean"); //contains TObjArray of 21 TF1
+ AliCDBEntry *pQthreEnt =AliCDBManager::Instance()->Get("HMPID/Calib/Qthre"); //contains TObjArray of 7 TF1
+ if(!pNmeanEnt) AliFatal("No Nmean C6F14 ");
+ if(!pQthreEnt) AliFatal("No Qthre");
+
+ return Recon(pEsd,fClu,(TObjArray*)pNmeanEnt->GetObject());
+}
+//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+Int_t AliHMPIDTracker::Recon(AliESD *pEsd,TObjArray *pCluAll,TObjArray *pNmean)
+{
+// Interface callback method invoked by AliRecontruction::RunTracking() during tracking after TOF. It's done just once per event
+// Arguments: pEsd - pointer to Event Summary Data class instance which contains a list of tracks
// Returns: error code, 0 if no errors
- Int_t iNtracks=pESD->GetNumberOfTracks(); AliDebugClass(1,Form("Start with %i tracks",iNtracks));
+ Int_t iNtracks=pEsd->GetNumberOfTracks(); AliDebugClass(1,Form("Start with %i tracks",iNtracks));
- AliHMPIDRecon recon; //instance of reconstruction class, nothing important in ctor
- Float_t xRa,yRa;
+ AliHMPIDRecon recon; //instance of reconstruction class, nothing important in ctor
+ Double_t xPc,yPc;
for(Int_t iTrk=0;iTrk<iNtracks;iTrk++){ //ESD tracks loop
- AliESDtrack *pTrk = pESD->GetTrack(iTrk); //get next reconstructed track
- Int_t cham=IntTrkCha(pTrk,xRa,yRa); //get chamber intersected by thie track
+ AliESDtrack *pTrk = pEsd->GetTrack(iTrk); //get next reconstructed track
+ Int_t cham=IntTrkCha(pTrk,xPc,yPc); //get chamber intersected by this track
if(cham<0) continue; //no intersection at all, go after next track
- recon.CkovAngle(pTrk,(TClonesArray *)pCluAll->At(cham)); //search for Cerenkov angle for this track
+ Double_t nmean=((TF1*)pNmean->At(3*cham))->Eval(pEsd->GetTimeStamp()); //C6F14 Nmean for this chamber
+ recon.SetImpPC(xPc,yPc); //store track impact to PC
+ recon.CkovAngle(pTrk,(TClonesArray *)pCluAll->At(cham),nmean); //search for Cerenkov angle of this track
} //ESD tracks loop
AliDebugClass(1,"Stop pattern recognition");
return 0; // error code: 0=no error;
}//PropagateBack()
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
-Int_t AliHMPIDTracker::IntTrkCha(AliESDtrack *pTrk,Float_t &xRa,Float_t &yRa)
+Int_t AliHMPIDTracker::IntTrkCha(AliESDtrack *pTrk,Double_t &xToPc,Double_t &yToPc)
{
// Static method to find intersection in between given track and HMPID chambers
// Arguments: pTrk - ESD track
-// xRa,yRa - track intersection with the middle of radiator, LORS
+// xPc,yPc - track intersection with PC, LORS
// Returns: intersected chamber ID or -1
AliHMPIDParam *pParam=AliHMPIDParam::Instance();
- Float_t xPc=0,yPc=0,th=0,ph=0; //track intersection point and angles, LORS
- for(Int_t i=0;i<7;i++){ //chambers loop
+ Float_t xRa=0,yRa=0,xPc=0,yPc=0,theta=0,phi=0; //track intersection point and angles, LORS
+ for(Int_t i=AliHMPIDDigit::kMinCh;i<=AliHMPIDDigit::kMaxCh;i++){ //chambers loop
Double_t p1[3],n1[3]; pParam->Norm(i,n1); pParam->Lors2Mars(i,0,0,p1,AliHMPIDParam::kRad); //point & norm for RAD
Double_t p2[3],n2[3]; pParam->Norm(i,n2); pParam->Lors2Mars(i,0,0,p2,AliHMPIDParam::kPc); //point & norm for PC
if(pTrk->Intersect(p1,n1,-GetBz())==kFALSE) continue; //try to intersect track with the middle of radiator
if(pTrk->Intersect(p2,n2,-GetBz())==kFALSE) continue; //try to intersect track with PC
- pParam->Mars2LorsVec(i,n1,th,ph); //track angles
+ pParam->Mars2LorsVec(i,n1,theta,phi); //track angles at RAD
pParam->Mars2Lors (i,p1,xRa,yRa); //TRKxRAD position
pParam->Mars2Lors (i,p2,xPc,yPc); //TRKxPC position
-
- if(AliHMPIDDigit::IsInside(xPc,yPc)==kFALSE) continue; //not in active area
- pTrk->SetHMPIDtrk (xPc,yPc,th,ph); //store track intersection info
+ xToPc=(Double_t)xPc;yToPc=(Double_t)yPc; //conversion float->double only
+ if(AliHMPIDDigit::IsInside(xPc,yPc,pParam->DistCut())==kFALSE) continue; //not in active area
+ pTrk->SetHMPIDtrk (xRa,yRa,theta,phi); //store track intersection info
pTrk->SetHMPIDcluIdx (i,0);
return i;
} //chambers loop