[u/mrichter/AliRoot.git] / HMPID / AliHMPIDTracker.cxx

#include "AliHMPIDTracker.h"     //class header
#include "AliHMPIDCluster.h"     //GetTrackPoint(),PropagateBack() 
#include "AliHMPIDParam.h"       //GetTrackPoint(),PropagateBack()
#include "AliHMPIDRecon.h"       //Recon()
#include "AliHMPIDReconHTA.h"    //ReconHTA()
#include <AliESDEvent.h>         //PropagateBack(),Recon()  
#include <AliESDtrack.h>         //Intersect()  
#include <AliRun.h>              //GetTrackPoint(),PropagateBack()  
#include <AliTrackPointArray.h>  //GetTrackPoint()
#include <AliAlignObj.h>         //GetTrackPoint()
#include <AliCDBManager.h>       //PropageteBack()
#include <AliCDBEntry.h>         //PropageteBack()
//.
// HMPID base class fo tracking
//.
//.
//.
ClassImp(AliHMPIDTracker)
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
AliHMPIDTracker::AliHMPIDTracker():
  AliTracker(),
  fClu(new TObjArray(AliHMPIDParam::kMaxCh+1))  
{
// ctor. Create TObjArray of TClonesArray of AliHMPIDCluster  
// 
//  
  fClu->SetOwner(kTRUE);
  for(int i=AliHMPIDParam::kMinCh;i<=AliHMPIDParam::kMaxCh;i++) fClu->AddAt(new TClonesArray("AliHMPIDCluster"),i);
}//ctor
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++    
Bool_t AliHMPIDTracker::GetTrackPoint(Int_t idx, AliTrackPoint& point) const
{
// Interface callback methode invoked from AliReconstruction::WriteAlignmentData() to get position of MIP cluster in MARS associated to a current track.
// MIP cluster is reffered by index which is stored in AliESDtrack  ???????
// Arguments: idx- cluster index which is stored by HMPID in AliESDtrack
//            point- reference to the object where to store the point     
//   Returns: status of operation  if FALSE then AliReconstruction::WriteAlignmentData() do not store this point to array of points for current track. 
  if(idx<0) return kFALSE; //no MIP cluster assigned to this track in PropagateBack()
  Int_t iCham=idx/1000000; Int_t iClu=idx%1000000;
  point.SetVolumeID(AliGeomManager::LayerToVolUID(AliGeomManager::kHMPID,iCham-1));//layer and chamber number
  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]);
  return kTRUE;
}//GetTrackPoint()
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Int_t AliHMPIDTracker::IntTrkCha(AliESDtrack *pTrk,Float_t &xPc,Float_t &yPc,Float_t &xRa,Float_t &yRa,Float_t &theta,Float_t &phi)
{
// Static method to find intersection in between given track and HMPID chambers
// Arguments: pTrk- ESD track; xPc,yPc- track intersection with PC in LORS [cm]
//   Returns: intersected chamber ID or -1
  AliHMPIDParam *pParam=AliHMPIDParam::Instance();
  for(Int_t i=AliHMPIDParam::kMinCh;i<=AliHMPIDParam::kMaxCh;i++){                              //chambers loop
    Double_t p1[3],n1[3]; pParam->Norm(i,n1); pParam->Point(i,p1,AliHMPIDParam::kRad);          //point & norm  for middle of radiator plane
    Double_t p2[3],n2[3]; pParam->Norm(i,n2); pParam->Point(i,p2,AliHMPIDParam::kPc);           //point & norm  for entrance to PC plane
    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,theta,phi);                                                       //track angles at RAD
    pParam->Mars2Lors   (i,p1,xRa,yRa);                                                         //TRKxRAD position
    pParam->Mars2Lors   (i,p2,xPc,yPc);                                                         //TRKxPC position
    if(AliHMPIDParam::IsInside(xPc,yPc,pParam->DistCut())==kTRUE) return i;                     //return intersected chamber  
  }                                                                                             //chambers loop
  return -1;                                                                                    //no intersection with HMPID chambers
}//IntTrkCha()
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Int_t AliHMPIDTracker::LoadClusters(TTree *pCluTree)
{
// Interface callback methode invoked from AliReconstruction::RunTracking() to load HMPID clusters before PropagateBack() gets control. Done once per event.
// Arguments: pCluTree- pointer to clusters tree got by AliHMPIDLoader::LoadRecPoints("read") then AliHMPIDLoader::TreeR()
//   Returns: error code (currently ignored in AliReconstruction::RunTraking())    
  for(int i=AliHMPIDParam::kMinCh;i<=AliHMPIDParam::kMaxCh;i++) pCluTree->SetBranchAddress(Form("HMPID%d",i),&((*fClu)[i]));
  pCluTree->GetEntry(0);
  return 0;  
}//LoadClusters()
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Int_t AliHMPIDTracker::PropagateBack(AliESDEvent *pEsd)
{
// Interface pure virtual in AliTracker. Invoked from AliReconstruction::RunTracking() after invocation of AliTracker::LoadClusters() once per event
// Agruments: pEsd - pointer to ESD
//   Returns: error code    
  AliCDBEntry *pNmeanEnt =AliCDBManager::Instance()->Get("HMPID/Calib/Nmean"); //contains TObjArray of 42 TF1 + 1 EPhotMean
  AliCDBEntry *pQthreEnt =AliCDBManager::Instance()->Get("HMPID/Calib/Qthre"); //contains TObjArray of 42 (7ch * 6sec) TF1
  if(!pNmeanEnt) AliError("No Nmean C6F14 ");
  if(!pQthreEnt) AliError("No Qthre");
    
  return Recon(pEsd,fClu,(TObjArray*)pNmeanEnt->GetObject(),(TObjArray*)pQthreEnt->GetObject());  
}//PropagateBack()
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Int_t AliHMPIDTracker::Recon(AliESDEvent *pEsd,TObjArray *pClus,TObjArray *pNmean, TObjArray *pQthre)
{
// Static method to reconstruct Theta Ckov for all valid tracks of a given event.
// Arguments: pEsd- pointer ESD; pClu- pointer to clusters for all chambers; pNmean - pointer to all function Nmean=f(time)
//   Returns: error code, 0 if no errors   
  AliHMPIDRecon recon;                                                                       //instance of reconstruction class, nothing important in ctor
  Float_t xPc,yPc,xRa,yRa,theta,phi;
  for(Int_t iTrk=0;iTrk<pEsd->GetNumberOfTracks();iTrk++){                                       //ESD tracks loop
    AliESDtrack *pTrk = pEsd->GetTrack(iTrk);                                                    //get reconstructed track    
    Int_t cham=IntTrkCha(pTrk,xPc,yPc,xRa,yRa,theta,phi);                                        //get chamber intersected by this track 
    if(cham<0) {                                                                                 //no intersection at all, go after next track
      pTrk->SetHMPIDtrk(0,0,0,0);                                                                //no intersection found
      pTrk->SetHMPIDcluIdx   (99,99999);                                                         //chamber not found, mip not yet considered
      pTrk->SetHMPIDsignal(AliHMPIDRecon::kNotPerformed);                                        //ring reconstruction not yet performed
      continue;                                                                         
    }
    pTrk->SetHMPIDtrk(xRa,yRa,theta,phi);                                                        //store initial infos
    Double_t nmean;
    if(pNmean->GetEntries()==21) {                                                               //for backward compatibility
       nmean=((TF1*)pNmean->At(3*cham))->Eval(pEsd->GetTimeStamp());                             //C6F14 Nmean for this chamber
     } else {
       Int_t iRad     = AliHMPIDParam::Radiator(yRa);                                            //evaluate the radiator involved
       if(iRad < 0) {
        nmean = -1;
       } else {
        //AliDebug(1,"\n track didn' t pass through the radiator \n");                           //check track passage through the radiators
       Double_t tLow  = ((TF1*)pNmean->At(6*cham+2*iRad  ))->Eval(pEsd->GetTimeStamp());         //C6F14 low  temp for this chamber
       Double_t tHigh = ((TF1*)pNmean->At(6*cham+2*iRad+1))->Eval(pEsd->GetTimeStamp());         //C6F14 high temp for this chamber
       Double_t tExp  = AliHMPIDParam::FindTemp(tLow,tHigh,yRa);                                 //estimated temp for that chamber at that y
       nmean = AliHMPIDParam::NIdxRad(AliHMPIDParam::Instance()->GetEPhotMean(),tExp);           //mean ref idx @ a given temp
       }
     }
    Double_t qthre = 0; 
    if(pQthre->GetEntriesFast()==AliHMPIDParam::kMaxCh+1)                                        // just for backward compatibility
      qthre=((TF1*)pQthre->At(cham))->Eval(pEsd->GetTimeStamp());                                //
    else {                                                                                       // in the past just 1 qthre
      Int_t hvsec = AliHMPIDParam::InHVSector(yPc);                                              //  per chamber
      if (hvsec>=0)
	qthre=((TF1*)pQthre->At(6*cham+hvsec))->Eval(pEsd->GetTimeStamp());                      //
    }                                                                                            //
    recon.SetImpPC(xPc,yPc);                                                                     //store track impact to PC
    recon.CkovAngle(pTrk,(TClonesArray *)pClus->At(cham),nmean,qthre);                           //search for Cerenkov angle of this track
//    Printf("AliHMPIDTracker::Recon: nmean %f, qthre %f",nmean,qthre);
  }                                                                                              //ESD tracks loop
  return 0; // error code: 0=no error;
}//Recon()
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Int_t AliHMPIDTracker::ReconHiddenTrk(Int_t iCh,Int_t iHVsec,AliESDtrack *pTrk,TClonesArray *pCluLst,TObjArray *pNmean,TObjArray *pQthre)
{
// Static method to reconstruct Theta Ckov for all valid tracks of a given event.
// Arguments: pEsd- pointer ESD; pClu- pointer to clusters for all chambers; pNmean - pointer to all function Nmean=f(time), pQthre - pointer to all function Qthre=f(time)
//   Returns: error code, 0 if no errors
  AliHMPIDReconHTA reconHTA;                                                                          //instance of reconstruction class, nothing important in ctor
  Double_t nmean=((TF1*)pNmean->At(3*iCh))->Eval(0);                                            //C6F14 Nmean for this chamber
  Double_t qthre = 0;
  if(pQthre->GetEntriesFast()==AliHMPIDParam::kMaxCh+1)                                         //
    qthre=((TF1*)pQthre->At(iCh))->Eval(0);                                                     //just for backward compatibi
  else  qthre=((TF1*)pQthre->At(6*iCh+iHVsec))->Eval(0);                                        //
  if(pCluLst->GetEntriesFast()<4) return 1;                                                     //min 4 clusters (3 + 1 mip) to find a ring! 
  if(reconHTA.CkovHiddenTrk(pTrk,pCluLst,nmean,qthre)) return 0;                                   //search for track parameters and Cerenkov angle of this track
  else return 1;                                                                                // error code: 0=no error,1=fit not performed;
}//Recon()
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
void AliHMPIDTracker::FillClusterArray(TObjArray* array) const {
  
 // Publishes all pointers to clusters known to the tracker into the
  // passed object array.
  // The ownership is not transfered - the caller is not expected to delete
  // the clusters
 
  for(Int_t iCh=AliHMPIDParam::kMinCh;iCh<=AliHMPIDParam::kMaxCh;iCh++){    
    TClonesArray *pCluArr=(TClonesArray*)(*fClu)[iCh];
    for (Int_t iClu=0; iClu<pCluArr->GetEntriesFast();iClu++){
      AliHMPIDCluster *pClu=(AliHMPIDCluster*)pCluArr->UncheckedAt(iClu);    
      array->AddLast(pClu);
    }//cluster loop in iCh
    pCluArr->Delete();
  }//Ch loop
    
  return;
}
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Commit	Line	Data
3c6274c1	1	#include "AliHMPIDTracker.h" //class header
	2	#include "AliHMPIDCluster.h" //GetTrackPoint(),PropagateBack()
	3	#include "AliHMPIDParam.h" //GetTrackPoint(),PropagateBack()
59d9d4b3	4	#include "AliHMPIDRecon.h" //Recon()
57fcdc2b	5	#include "AliHMPIDReconHTA.h" //ReconHTA()
	6	#include <AliESDEvent.h> //PropagateBack(),Recon()
	7	#include <AliESDtrack.h> //Intersect()
d3da6dc4	8	#include <AliRun.h> //GetTrackPoint(),PropagateBack()
	9	#include <AliTrackPointArray.h> //GetTrackPoint()
	10	#include <AliAlignObj.h> //GetTrackPoint()
59d9d4b3	11	#include <AliCDBManager.h> //PropageteBack()
59d9d4b3	12	#include <AliCDBEntry.h> //PropageteBack()
423554a3	13	//.
	14	// HMPID base class fo tracking
	15	//.
	16	//.
	17	//.
d3da6dc4	18	ClassImp(AliHMPIDTracker)
94b1fbfa	19	//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
c61a7285	20	AliHMPIDTracker::AliHMPIDTracker():
	21	AliTracker(),
	22	fClu(new TObjArray(AliHMPIDParam::kMaxCh+1))
94b1fbfa	23	{
59d9d4b3	24	// ctor. Create TObjArray of TClonesArray of AliHMPIDCluster
	25	//
	26	//
c61a7285	27	fClu->SetOwner(kTRUE);
ae5a42aa	28	for(int i=AliHMPIDParam::kMinCh;i<=AliHMPIDParam::kMaxCh;i++) fClu->AddAt(new TClonesArray("AliHMPIDCluster"),i);
59d9d4b3	29	}//ctor
d3da6dc4	30	//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
	31	Bool_t AliHMPIDTracker::GetTrackPoint(Int_t idx, AliTrackPoint& point) const
	32	{
	33	// Interface callback methode invoked from AliReconstruction::WriteAlignmentData() to get position of MIP cluster in MARS associated to a current track.
	34	// MIP cluster is reffered by index which is stored in AliESDtrack ???????
	35	// Arguments: idx- cluster index which is stored by HMPID in AliESDtrack
	36	// point- reference to the object where to store the point
	37	// Returns: status of operation if FALSE then AliReconstruction::WriteAlignmentData() do not store this point to array of points for current track.
	38	if(idx<0) return kFALSE; //no MIP cluster assigned to this track in PropagateBack()
59d9d4b3	39	Int_t iCham=idx/1000000; Int_t iClu=idx%1000000;
ae079791	40	point.SetVolumeID(AliGeomManager::LayerToVolUID(AliGeomManager::kHMPID,iCham-1));//layer and chamber number
94b1fbfa	41	TClonesArray pArr=(TClonesArray)(*fClu)[iCham];
94b1fbfa	42	AliHMPIDCluster pClu=(AliHMPIDCluster)pArr->UncheckedAt(iClu);//get pointer to cluster
d3da6dc4	43	Double_t mars[3];
	44	AliHMPIDParam::Instance()->Lors2Mars(iCham,pClu->X(),pClu->Y(),mars);
	45	point.SetXYZ(mars[0],mars[1],mars[2]);
	46	return kTRUE;
59d9d4b3	47	}//GetTrackPoint()
59d9d4b3	48	//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
39cd22e6	49	Int_t AliHMPIDTracker::IntTrkCha(AliESDtrack *pTrk,Float_t &xPc,Float_t &yPc,Float_t &xRa,Float_t &yRa,Float_t &theta,Float_t &phi)
59d9d4b3	50	{
	51	// Static method to find intersection in between given track and HMPID chambers
	52	// Arguments: pTrk- ESD track; xPc,yPc- track intersection with PC in LORS [cm]
	53	// Returns: intersected chamber ID or -1
	54	AliHMPIDParam *pParam=AliHMPIDParam::Instance();
ae5a42aa	55	for(Int_t i=AliHMPIDParam::kMinCh;i<=AliHMPIDParam::kMaxCh;i++){ //chambers loop
59d9d4b3	56	Double_t p1[3],n1[3]; pParam->Norm(i,n1); pParam->Point(i,p1,AliHMPIDParam::kRad); //point & norm for middle of radiator plane
	57	Double_t p2[3],n2[3]; pParam->Norm(i,n2); pParam->Point(i,p2,AliHMPIDParam::kPc); //point & norm for entrance to PC plane
	58	if(pTrk->Intersect(p1,n1,-GetBz())==kFALSE) continue; //try to intersect track with the middle of radiator
	59	if(pTrk->Intersect(p2,n2,-GetBz())==kFALSE) continue; //try to intersect track with PC
	60	pParam->Mars2LorsVec(i,n1,theta,phi); //track angles at RAD
	61	pParam->Mars2Lors (i,p1,xRa,yRa); //TRKxRAD position
	62	pParam->Mars2Lors (i,p2,xPc,yPc); //TRKxPC position
39cd22e6	63	if(AliHMPIDParam::IsInside(xPc,yPc,pParam->DistCut())==kTRUE) return i; //return intersected chamber
59d9d4b3	64	} //chambers loop
39cd22e6	65	return -1; //no intersection with HMPID chambers
59d9d4b3	66	}//IntTrkCha()
d3da6dc4	67	//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
	68	Int_t AliHMPIDTracker::LoadClusters(TTree *pCluTree)
	69	{
59d9d4b3	70	// Interface callback methode invoked from AliReconstruction::RunTracking() to load HMPID clusters before PropagateBack() gets control. Done once per event.
d3da6dc4	71	// Arguments: pCluTree- pointer to clusters tree got by AliHMPIDLoader::LoadRecPoints("read") then AliHMPIDLoader::TreeR()
d3da6dc4	72	// Returns: error code (currently ignored in AliReconstruction::RunTraking())
ae5a42aa	73	for(int i=AliHMPIDParam::kMinCh;i<=AliHMPIDParam::kMaxCh;i++) pCluTree->SetBranchAddress(Form("HMPID%d",i),&((*fClu)[i]));
94b1fbfa	74	pCluTree->GetEntry(0);
94b1fbfa	75	return 0;
59d9d4b3	76	}//LoadClusters()
d3da6dc4	77	//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
af885e0f	78	Int_t AliHMPIDTracker::PropagateBack(AliESDEvent *pEsd)
abb5f786	79	{
59d9d4b3	80	// Interface pure virtual in AliTracker. Invoked from AliReconstruction::RunTracking() after invocation of AliTracker::LoadClusters() once per event
abb5f786	81	// Agruments: pEsd - pointer to ESD
abb5f786	82	// Returns: error code
f455af6e	83	AliCDBEntry *pNmeanEnt =AliCDBManager::Instance()->Get("HMPID/Calib/Nmean"); //contains TObjArray of 42 TF1 + 1 EPhotMean
49881df7	84	AliCDBEntry pQthreEnt =AliCDBManager::Instance()->Get("HMPID/Calib/Qthre"); //contains TObjArray of 42 (7ch 6sec) TF1
d740407f	85	if(!pNmeanEnt) AliError("No Nmean C6F14 ");
d740407f	86	if(!pQthreEnt) AliError("No Qthre");
94b1fbfa	87
afe12692	88	return Recon(pEsd,fClu,(TObjArray)pNmeanEnt->GetObject(),(TObjArray)pQthreEnt->GetObject());
611e810d	89	}//PropagateBack()
abb5f786	90	//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
afe12692	91	Int_t AliHMPIDTracker::Recon(AliESDEvent pEsd,TObjArray pClus,TObjArray pNmean, TObjArray pQthre)
d3da6dc4	92	{
59d9d4b3	93	// Static method to reconstruct Theta Ckov for all valid tracks of a given event.
59d9d4b3	94	// Arguments: pEsd- pointer ESD; pClu- pointer to clusters for all chambers; pNmean - pointer to all function Nmean=f(time)
d3da6dc4	95	// Returns: error code, 0 if no errors
abb5f786	96	AliHMPIDRecon recon; //instance of reconstruction class, nothing important in ctor
39cd22e6	97	Float_t xPc,yPc,xRa,yRa,theta,phi;
59d9d4b3	98	for(Int_t iTrk=0;iTrk<pEsd->GetNumberOfTracks();iTrk++){ //ESD tracks loop
59d9d4b3	99	AliESDtrack *pTrk = pEsd->GetTrack(iTrk); //get reconstructed track
39cd22e6	100	Int_t cham=IntTrkCha(pTrk,xPc,yPc,xRa,yRa,theta,phi); //get chamber intersected by this track
	101	if(cham<0) { //no intersection at all, go after next track
	102	pTrk->SetHMPIDtrk(0,0,0,0); //no intersection found
	103	pTrk->SetHMPIDcluIdx (99,99999); //chamber not found, mip not yet considered
	104	pTrk->SetHMPIDsignal(AliHMPIDRecon::kNotPerformed); //ring reconstruction not yet performed
	105	continue;
	106	}
	107	pTrk->SetHMPIDtrk(xRa,yRa,theta,phi); //store initial infos
f455af6e	108	Double_t nmean;
	109	if(pNmean->GetEntries()==21) { //for backward compatibility
	110	nmean=((TF1)pNmean->At(3cham))->Eval(pEsd->GetTimeStamp()); //C6F14 Nmean for this chamber
	111	} else {
	112	Int_t iRad = AliHMPIDParam::Radiator(yRa); //evaluate the radiator involved
d740407f	113	if(iRad < 0) {
	114	nmean = -1;
	115	} else {
	116	//AliDebug(1,"\n track didn' t pass through the radiator \n"); //check track passage through the radiators
f455af6e	117	Double_t tLow = ((TF1)pNmean->At(6cham+2*iRad ))->Eval(pEsd->GetTimeStamp()); //C6F14 low temp for this chamber
	118	Double_t tHigh = ((TF1)pNmean->At(6cham+2*iRad+1))->Eval(pEsd->GetTimeStamp()); //C6F14 high temp for this chamber
	119	Double_t tExp = AliHMPIDParam::FindTemp(tLow,tHigh,yRa); //estimated temp for that chamber at that y
	120	nmean = AliHMPIDParam::NIdxRad(AliHMPIDParam::Instance()->GetEPhotMean(),tExp); //mean ref idx @ a given temp
d740407f	121	}
f455af6e	122	}
6b7f1827	123	Double_t qthre = 0;
	124	if(pQthre->GetEntriesFast()==AliHMPIDParam::kMaxCh+1) // just for backward compatibility
	125	qthre=((TF1*)pQthre->At(cham))->Eval(pEsd->GetTimeStamp()); //
	126	else { // in the past just 1 qthre
7656d8ac	127	Int_t hvsec = AliHMPIDParam::InHVSector(yPc); // per chamber
44193e0f	128	if (hvsec>=0)
f455af6e	129	qthre=((TF1)pQthre->At(6cham+hvsec))->Eval(pEsd->GetTimeStamp()); //
6b7f1827	130	} //
a591e55f	131	recon.SetImpPC(xPc,yPc); //store track impact to PC
afe12692	132	recon.CkovAngle(pTrk,(TClonesArray *)pClus->At(cham),nmean,qthre); //search for Cerenkov angle of this track
8d6043fc	133	// Printf("AliHMPIDTracker::Recon: nmean %f, qthre %f",nmean,qthre);
59280a5a	134	} //ESD tracks loop
d3da6dc4	135	return 0; // error code: 0=no error;
611e810d	136	}//Recon()
611e810d	137	//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
49881df7	138	Int_t AliHMPIDTracker::ReconHiddenTrk(Int_t iCh,Int_t iHVsec,AliESDtrack pTrk,TClonesArray pCluLst,TObjArray pNmean,TObjArray pQthre)
611e810d	139	{
611e810d	140	// Static method to reconstruct Theta Ckov for all valid tracks of a given event.
afe12692	141	// Arguments: pEsd- pointer ESD; pClu- pointer to clusters for all chambers; pNmean - pointer to all function Nmean=f(time), pQthre - pointer to all function Qthre=f(time)
611e810d	142	// Returns: error code, 0 if no errors
57fcdc2b	143	AliHMPIDReconHTA reconHTA; //instance of reconstruction class, nothing important in ctor
611e810d	144	Double_t nmean=((TF1)pNmean->At(3iCh))->Eval(0); //C6F14 Nmean for this chamber
6b7f1827	145	Double_t qthre = 0;
fd47aebf	146	if(pQthre->GetEntriesFast()==AliHMPIDParam::kMaxCh+1) //
	147	qthre=((TF1*)pQthre->At(iCh))->Eval(0); //just for backward compatibi
	148	else qthre=((TF1)pQthre->At(6iCh+iHVsec))->Eval(0); //
611e810d	149	if(pCluLst->GetEntriesFast()<4) return 1; //min 4 clusters (3 + 1 mip) to find a ring!
57fcdc2b	150	if(reconHTA.CkovHiddenTrk(pTrk,pCluLst,nmean,qthre)) return 0; //search for track parameters and Cerenkov angle of this track
5b2b2013	151	else return 1; // error code: 0=no error,1=fit not performed;
611e810d	152	}//Recon()
d3da6dc4	153	//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
c1af14f7	154	void AliHMPIDTracker::FillClusterArray(TObjArray* array) const {
	155
	156	// Publishes all pointers to clusters known to the tracker into the
	157	// passed object array.
	158	// The ownership is not transfered - the caller is not expected to delete
	159	// the clusters
	160
	161	for(Int_t iCh=AliHMPIDParam::kMinCh;iCh<=AliHMPIDParam::kMaxCh;iCh++){
	162	TClonesArray pCluArr=(TClonesArray)(*fClu)[iCh];
	163	for (Int_t iClu=0; iClu<pCluArr->GetEntriesFast();iClu++){
	164	AliHMPIDCluster pClu=(AliHMPIDCluster)pCluArr->UncheckedAt(iClu);
	165	array->AddLast(pClu);
	166	}//cluster loop in iCh
	167	pCluArr->Delete();
	168	}//Ch loop
	169
	170	return;
	171	}
	172	//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++