]> git.uio.no Git - u/mrichter/AliRoot.git/blobdiff - TPC/AliTPCcalibCalib.cxx
Update (Chiara)
[u/mrichter/AliRoot.git] / TPC / AliTPCcalibCalib.cxx
index 25034e2fa70feac5d859875cb959907e2fab9adf..30358727a28934dedd4c6c178624863bc31c1acf 100644 (file)
 #include "AliESDtrack.h"
 #include "AliTracker.h"
 #include "AliTPCClusterParam.h"
+#include "AliTPCParam.h"
 
 #include "AliTPCcalibDB.h"
 #include "AliTPCTransform.h"
+#include "AliTPCRecoParam.h"
 #include "AliTPCclusterMI.h"
 #include "AliTPCseed.h"
-
+#include "AliTPCPointCorrection.h"
+#include <TGeoManager.h>
+#include <TGeoPhysicalNode.h>
+#include "TDatabasePDG.h"
 ClassImp(AliTPCcalibCalib)
 
 AliTPCcalibCalib::AliTPCcalibCalib():
-    AliTPCcalibBase()
+AliTPCcalibBase(),
+  fApplyExBCorrection(1),      // apply ExB correction
+  fApplyTOFCorrection(1),      // apply TOF correction
+  fApplyPositionCorrection(1), // apply position correction
+  fApplySectorAlignment(1),    // apply sector alignment
+  fApplyRPhiCorrection(1),     // apply R-Phi correction
+  fApplyRCorrection(1)         // apply Radial correction
+
 {
   //
   // Constructor
@@ -73,7 +85,13 @@ AliTPCcalibCalib::AliTPCcalibCalib():
 
 
 AliTPCcalibCalib::AliTPCcalibCalib(const Text_t *name, const Text_t *title) 
-  :AliTPCcalibBase()
+  :AliTPCcalibBase(),
+  fApplyExBCorrection(1),      // apply ExB correction
+  fApplyTOFCorrection(1),      // apply TOF correction
+  fApplyPositionCorrection(1), // apply position correction
+  fApplySectorAlignment(1),    // apply sector alignment
+  fApplyRPhiCorrection(1),     // apply R-Phi correction
+  fApplyRCorrection(1)         // apply Radial correction
 {  
   SetName(name);
   SetTitle(title);
@@ -81,7 +99,14 @@ AliTPCcalibCalib::AliTPCcalibCalib(const Text_t *name, const Text_t *title)
 
 
 AliTPCcalibCalib::AliTPCcalibCalib(const AliTPCcalibCalib&calib):
-  AliTPCcalibBase(calib)
+  AliTPCcalibBase(calib),
+  fApplyExBCorrection(calib.GetApplyExBCorrection()),
+  fApplyTOFCorrection(calib.GetApplyTOFCorrection()),
+  fApplyPositionCorrection(calib.GetApplyPositionCorrection()),
+  fApplySectorAlignment(calib.GetApplySectorAlignment()),
+  fApplyRPhiCorrection(calib.GetApplyRPhiCorrection()),
+  fApplyRCorrection(calib.GetApplyRCorrection())
+
 {
   //
   // copy constructor
@@ -125,56 +150,107 @@ void     AliTPCcalibCalib::Process(AliESDEvent *event){
   //
 
   for (Int_t i=0;i<ntracks;++i) {
-    AliESDtrack *track = event->GetTrack(i);  
-    const AliExternalTrackParam * trackIn = track->GetInnerParam();
+    AliESDtrack *track = event->GetTrack(i);     
+    AliESDfriendTrack *friendTrack = (AliESDfriendTrack*) ESDfriend->GetTrack(i);
+    if (!friendTrack) continue;
+    //track->SetFriendTrack(friendTrack);
+    fCurrentFriendTrack=friendTrack;
+    const AliExternalTrackParam * trackIn  = track->GetInnerParam();
     const AliExternalTrackParam * trackOut = track->GetOuterParam();
+    AliExternalTrackParam * tpcOut   = (AliExternalTrackParam *)friendTrack->GetTPCOut();
     if (!trackIn) continue;
     if (!trackOut) continue;
-   
-    AliESDfriendTrack *friendTrack = ESDfriend->GetTrack(i);
+    if (!tpcOut) continue;   
     TObject *calibObject;
     AliTPCseed *seed = 0;
     for (Int_t l=0;(calibObject=friendTrack->GetCalibObject(l));++l) {
       if ((seed=dynamic_cast<AliTPCseed*>(calibObject))) break;
     }
     if (!seed) continue;
-    RefitTrack(track, seed);
+    RefitTrack(track, seed, event->GetMagneticField());
+    (*tpcOut)=*(track->GetOuterParam());  
   }
   return;
 }
 
-Bool_t  AliTPCcalibCalib::RefitTrack(AliESDtrack * track, AliTPCseed *seed){
+Bool_t  AliTPCcalibCalib::RefitTrack(AliESDtrack * track, AliTPCseed *seed, Float_t magesd){
   //
   // Refit track
+  // if magesd==0 forget the curvature
+
+  //
+  // 0 - Setup transform object
   //
+  const Double_t kxIFC = 83.;   // position of IFC
+  const Double_t kxOFC = 250.;  // position of OFC
+  const Double_t kaFC = 1.;    // amplitude 
+  const Double_t ktFC = 5.0;    // slope of error 
+  //cov[0]+= kaFC*(TMath::Exp(-TMath::Abs(cl->GetX()-kxIFC)/ktFC)+TMath::Exp(-TMath::Abs(cl->GetX()-kxOFC)/ktFC));
+  //cov[2]+= kaFC*(TMath::Exp(-TMath::Abs(cl->GetX()-kxIFC)/ktFC)+TMath::Exp(-TMath::Abs(cl->GetX()-kxOFC)/ktFC));
+
+  static Int_t streamCounter=0;
+  streamCounter++;
+  AliESDfriendTrack *friendTrack = fCurrentFriendTrack;
+
+  AliTPCTransform *transform = AliTPCcalibDB::Instance()->GetTransform() ;
+  AliTPCParam     *param     = AliTPCcalibDB::Instance()->GetParameters();
+  transform->SetCurrentRun(fRun);
+  transform->SetCurrentTimeStamp((UInt_t)fTime);
+  if(!fApplyExBCorrection) { // disable ExB correction in transform
+    if(transform->GetCurrentRecoParam())
+      transform->GetCurrentRecoParamNonConst()->SetUseExBCorrection(0);
+  }
+  if(!fApplyTOFCorrection) { // disable TOF correction in transform
+    if(transform->GetCurrentRecoParam())
+      transform->GetCurrentRecoParamNonConst()->SetUseTOFCorrection(kFALSE);
+  }
 
   //
   // First apply calibration
   //
-
-  AliTPCTransform *transform = AliTPCcalibDB::Instance()->GetTransform();
+  //  AliTPCPointCorrection * corr =  AliTPCPointCorrection::Instance();
   for (Int_t irow=0;irow<159;irow++) {
     AliTPCclusterMI *cluster=seed->GetClusterPointer(irow);
     if (!cluster) continue; 
     AliTPCclusterMI cl0(*cluster);
     Double_t x[3]={cluster->GetRow(),cluster->GetPad(),cluster->GetTimeBin()};
     Int_t i[1]={cluster->GetDetector()};
+
     transform->Transform(x,i,0,1);
     //
     // get position correction
     //
     Int_t ipad=0;
     if (cluster->GetDetector()>35) ipad=1;
-    Float_t dy =AliTPCClusterParam::SPosCorrection(0,ipad,cluster->GetPad(),cluster->GetTimeBin(),cluster->GetZ(),cluster->GetSigmaY2(),cluster->GetSigmaZ2(),cluster->GetMax());
-    Float_t dz =AliTPCClusterParam::SPosCorrection(1,ipad,cluster->GetPad(),cluster->GetTimeBin(),cluster->GetZ(),cluster->GetSigmaY2(),cluster->GetSigmaZ2(),cluster->GetMax());
-    //x[1]-=dy;
-    //x[2]-=dz;
-
+    Float_t dy =0;//AliTPCClusterParam::SPosCorrection(0,ipad,cluster->GetPad(),cluster->GetTimeBin(),cluster->GetZ(),cluster->GetSigmaY2(),cluster->GetSigmaZ2(),cluster->GetMax());
+    Float_t dz =0;//AliTPCClusterParam::SPosCorrection(1,ipad,cluster->GetPad(),cluster->GetTimeBin(),cluster->GetZ(),cluster->GetSigmaY2(),cluster->GetSigmaZ2(),cluster->GetMax());
     //
     cluster->SetX(x[0]);
     cluster->SetY(x[1]);
     cluster->SetZ(x[2]);
-    if (fStreamLevel>2){
+    
+    //
+    // Apply alignemnt
+    //
+    if (transform->GetCurrentRecoParam()->GetUseSectorAlignment()){
+      if (!param->IsGeoRead()) param->ReadGeoMatrices();
+      TGeoHMatrix  *mat = param->GetClusterMatrix(cluster->GetDetector());
+      //TGeoHMatrix  mat;
+      Double_t pos[3]= {cluster->GetX(),cluster->GetY(),cluster->GetZ()};
+      Double_t posC[3]={cluster->GetX(),cluster->GetY(),cluster->GetZ()};
+      if (mat) mat->LocalToMaster(pos,posC);
+      else{
+       // chack Loading of Geo matrices from GeoManager - TEMPORARY FIX
+      }
+      cluster->SetX(posC[0]);
+      cluster->SetY(posC[1]);
+      cluster->SetZ(posC[2]);
+    }
+
+
+
+    if (fStreamLevel>2 && streamCounter<20*fStreamLevel ){
+      // dump debug info if required
       TTreeSRedirector *cstream = GetDebugStreamer();
       if (cstream){
        (*cstream)<<"Clusters"<<
@@ -182,6 +258,7 @@ Bool_t  AliTPCcalibCalib::RefitTrack(AliESDtrack * track, AliTPCseed *seed){
          "event="<<fEvent<<          //  event number
          "time="<<fTime<<            //  time stamp of event
          "trigger="<<fTrigger<<      //  trigger
+         "triggerClass="<<&fTriggerClass<<      //  trigger      
          "mag="<<fMagF<<             //  magnetic field
          "cl0.="<<&cl0<<
          "cl.="<<cluster<<
@@ -191,32 +268,84 @@ Bool_t  AliTPCcalibCalib::RefitTrack(AliESDtrack * track, AliTPCseed *seed){
       }
     }
   }
+  //
+  //
+  //
   Int_t ncl = seed->GetNumberOfClusters();
+  const Double_t kResetCov=4.;
+  const Double_t kSigma=5.;
   Double_t covar[15];
   for (Int_t i=0;i<15;i++) covar[i]=0;
-  covar[0]=10.*10.;
-  covar[2]=10.*10.;
-  covar[5]=10.*10./(64.*64.);
-  covar[9]=10.*10./(64.*64.);
-  covar[14]=1*1;
-
+  covar[0]=kSigma*kSigma;
+  covar[2]=kSigma*kSigma;
+  covar[5]=kSigma*kSigma/Float_t(ncl*ncl);
+  covar[9]=kSigma*kSigma/Float_t(ncl*ncl);
+  covar[14]=0.2*0.2;
+  if (TMath::Abs(magesd)<0.05) {
+     covar[14]=0.025*0.025;
+  }
   // 
   // And now do refit
   //
   AliExternalTrackParam * trackInOld  = (AliExternalTrackParam*)track->GetInnerParam();
-  AliExternalTrackParam * trackOutOld = (AliExternalTrackParam*)track->GetOuterParam();
+  AliExternalTrackParam * trackOuter = (AliExternalTrackParam*)track->GetOuterParam();
+  AliExternalTrackParam * trackOutOld   = (AliExternalTrackParam *)friendTrack->GetTPCOut();
+  Double_t mass =    TDatabasePDG::Instance()->GetParticle("pi+")->Mass();
+
+    
 
   AliExternalTrackParam trackIn  = *trackOutOld;
-  AliExternalTrackParam trackOut = *trackInOld;
-  trackIn.ResetCovariance(200.);
-  trackOut.ResetCovariance(200.);
+  trackIn.ResetCovariance(kResetCov);
   trackIn.AddCovariance(covar);
-  trackOut.AddCovariance(covar);
+  if (TMath::Abs(magesd)<0.05) {
+    ((Double_t&)(trackIn.GetParameter()[4]))=0.000000001;
+    ((Double_t&)(trackIn.GetCovariance()[14]))=covar[14];  // fix the line
+  }  
+
   Double_t xyz[3];
   Int_t nclIn=0,nclOut=0;
+  //
+  // Refit in
+  //
+  for (Int_t irow=159; irow>0; irow--){
+    AliTPCclusterMI *cl=seed->GetClusterPointer(irow);
+    if (!cl) continue;
+    if (cl->GetX()<80) continue;
+    Int_t sector = cl->GetDetector();
+    Float_t dalpha = TMath::DegToRad()*(sector%18*20.+10.)-trackIn.GetAlpha();
+    if (TMath::Abs(dalpha)>0.01){
+      if (!trackIn.Rotate(TMath::DegToRad()*(sector%18*20.+10.))) break;
+    }
+    Double_t r[3]={cl->GetX(),cl->GetY(),cl->GetZ()};
+    Double_t cov[3]={0.01,0.,0.01}; //TODO: correct error parametrisation
+    AliTPCseed::GetError(cl, &trackIn,cov[0],cov[2]);
+    cov[0]*=cov[0];
+    cov[2]*=cov[2];
+    cov[0]+= kaFC*(TMath::Exp(-TMath::Abs(cl->GetX()-kxIFC)/ktFC)+TMath::Exp(-TMath::Abs(cl->GetX()-kxOFC)/ktFC));
+    cov[2]+= kaFC*(TMath::Exp(-TMath::Abs(cl->GetX()-kxIFC)/ktFC)+TMath::Exp(-TMath::Abs(cl->GetX()-kxOFC)/ktFC));
+    trackIn.GetXYZ(xyz);
+    //    Double_t bz = AliTracker::GetBz(xyz);
+
+    //    if (!trackIn.PropagateTo(r[0],bz)) continue;
+    if (!AliTracker::PropagateTrackToBxByBz(&trackIn, r[0],mass,1.,kFALSE)) continue;
+
+    if (RejectCluster(cl,&trackIn)) continue;
+    nclIn++;
+    trackIn.Update(&r[1],cov);    
+  }
+  //
+  AliExternalTrackParam trackOut = trackIn;
+  trackOut.ResetCovariance(kResetCov);
+  trackOut.AddCovariance(covar);
+  if (TMath::Abs(magesd)<0.05) {
+    ((Double_t&)(trackOut.GetParameter()[4]))=0.000000001;
+    ((Double_t&)(trackOut.GetCovariance()[14]))=covar[14];  // fix the line
+  }
+
   //
   // Refit out
   //
+  //Bool_t lastEdge=kFALSE;
   for (Int_t irow=0; irow<160; irow++){
     AliTPCclusterMI *cl=seed->GetClusterPointer(irow);
     if (!cl) continue;
@@ -224,44 +353,70 @@ Bool_t  AliTPCcalibCalib::RefitTrack(AliESDtrack * track, AliTPCseed *seed){
     Int_t sector = cl->GetDetector();
     Float_t dalpha = TMath::DegToRad()*(sector%18*20.+10.)-trackOut.GetAlpha();
 
-    if (TMath::Abs(dalpha)>0.01)
-      trackOut.Rotate(TMath::DegToRad()*(sector%18*20.+10.));
+    if (TMath::Abs(dalpha)>0.01){
+      if (!trackOut.Rotate(TMath::DegToRad()*(sector%18*20.+10.))) break;
+    }
     Double_t r[3]={cl->GetX(),cl->GetY(),cl->GetZ()};
 
     Double_t cov[3]={0.01,0.,0.01}; //TODO: correct error parametrisation    
     AliTPCseed::GetError(cl, &trackOut,cov[0],cov[2]);
     cov[0]*=cov[0];
     cov[2]*=cov[2];
+    cov[0]+= kaFC*(TMath::Exp(-TMath::Abs(cl->GetX()-kxIFC)/ktFC)+TMath::Exp(-TMath::Abs(cl->GetX()-kxOFC)/ktFC));
+    cov[2]+= kaFC*(TMath::Exp(-TMath::Abs(cl->GetX()-kxIFC)/ktFC)+TMath::Exp(-TMath::Abs(cl->GetX()-kxOFC)/ktFC));
     trackOut.GetXYZ(xyz);
-    Double_t bz = AliTracker::GetBz(xyz);
-    if (trackOut.PropagateTo(r[0],bz)) nclOut++;
+    //Double_t bz = AliTracker::GetBz(xyz);
+    //    if (!trackOut.PropagateTo(r[0],bz)) continue;
+    if (!AliTracker::PropagateTrackToBxByBz(&trackOut, r[0],mass,1.,kFALSE)) continue;
+
     if (RejectCluster(cl,&trackOut)) continue;
-    trackOut.Update(&r[1],cov);    
+    nclOut++;
+    trackOut.Update(&r[1],cov);        
+    //if (cl->GetType()<0) lastEdge=kTRUE;
+    //if (cl->GetType()>=0) lastEdge=kFALSE;    
   }
   //
-  // Refit in
   //
-
+  //
+  nclIn=0;
+  trackIn  = trackOut;
+  trackIn.ResetCovariance(kResetCov);
+  if (TMath::Abs(magesd)<0.05) {
+    ((Double_t&)(trackIn.GetParameter()[4]))=0.000000001;
+    ((Double_t&)(trackIn.GetCovariance()[14]))=covar[14];  // fix the line
+  }
+  //
+  // Refit in one more time
+  //
   for (Int_t irow=159; irow>0; irow--){
     AliTPCclusterMI *cl=seed->GetClusterPointer(irow);
     if (!cl) continue;
     if (cl->GetX()<80) continue;
     Int_t sector = cl->GetDetector();
     Float_t dalpha = TMath::DegToRad()*(sector%18*20.+10.)-trackIn.GetAlpha();
-    if (TMath::Abs(dalpha)>0.01)
-      trackIn.Rotate(TMath::DegToRad()*(sector%18*20.+10.));
+    if (TMath::Abs(dalpha)>0.01){
+      if (!trackIn.Rotate(TMath::DegToRad()*(sector%18*20.+10.))) break;
+    }
     Double_t r[3]={cl->GetX(),cl->GetY(),cl->GetZ()};
     Double_t cov[3]={0.01,0.,0.01}; //TODO: correct error parametrisation
     AliTPCseed::GetError(cl, &trackIn,cov[0],cov[2]);
     cov[0]*=cov[0];
     cov[2]*=cov[2];
+    cov[0]+= kaFC*(TMath::Exp(-TMath::Abs(cl->GetX()-kxIFC)/ktFC)+TMath::Exp(-TMath::Abs(cl->GetX()-kxOFC)/ktFC));
+    cov[2]+= kaFC*(TMath::Exp(-TMath::Abs(cl->GetX()-kxIFC)/ktFC)+TMath::Exp(-TMath::Abs(cl->GetX()-kxOFC)/ktFC));
+
     trackIn.GetXYZ(xyz);
-    Double_t bz = AliTracker::GetBz(xyz);
+    //Double_t bz = AliTracker::GetBz(xyz);
+
+    //    if (!trackIn.PropagateTo(r[0],bz)) continue;
+    if (!AliTracker::PropagateTrackToBxByBz(&trackIn, r[0],mass,1,kFALSE)) continue;
 
-    if (trackIn.PropagateTo(r[0],bz)) nclIn++;
     if (RejectCluster(cl,&trackIn)) continue;
+    nclIn++;
     trackIn.Update(&r[1],cov);    
   }
+
+
   trackIn.Rotate(trackInOld->GetAlpha());
   trackOut.Rotate(trackOutOld->GetAlpha());
   //
@@ -274,7 +429,7 @@ Bool_t  AliTPCcalibCalib::RefitTrack(AliESDtrack * track, AliTPCseed *seed){
   trackOut.PropagateTo(trackOutOld->GetX(),bz);
   
 
-  if (fStreamLevel>0){
+  if (fStreamLevel>0 && streamCounter<100*fStreamLevel){
     TTreeSRedirector *cstream = GetDebugStreamer();
     if (cstream){
       (*cstream)<<"Tracks"<<
@@ -282,6 +437,7 @@ Bool_t  AliTPCcalibCalib::RefitTrack(AliESDtrack * track, AliTPCseed *seed){
        "event="<<fEvent<<          //  event number
        "time="<<fTime<<            //  time stamp of event
        "trigger="<<fTrigger<<      //  trigger
+       "triggerClass="<<&fTriggerClass<<      //  trigger
        "mag="<<fMagF<<             //  magnetic field
        "nclIn="<<nclIn<<
        "nclOut="<<nclOut<<
@@ -294,13 +450,16 @@ Bool_t  AliTPCcalibCalib::RefitTrack(AliESDtrack * track, AliTPCseed *seed){
     }
   }
   //
-  // And now rewrite ESDtrack
+  // And now rewrite ESDtrack and TPC seed
   //
  
   (*trackInOld)  = trackIn;
   (*trackOutOld) = trackOut;
+  (*trackOuter) = trackOut;
   AliExternalTrackParam *t = &trackIn;
-  track->Set(t->GetX(),t->GetAlpha(),t->GetParameter(),t->GetCovariance());
+  //track->Set(t->GetX(),t->GetAlpha(),t->GetParameter(),t->GetCovariance());
+  seed->Set(t->GetX(),t->GetAlpha(),t->GetParameter(),t->GetCovariance());
+  seed->SetNumberOfClusters((nclIn+nclOut)/2);
   return kTRUE;
 }
 
@@ -311,12 +470,27 @@ Bool_t AliTPCcalibCalib::RejectCluster(AliTPCclusterMI* cl, AliExternalTrackPara
   // check the acceptance of cluster
   // Cut on edge effects
   //
+  if (!param) return kTRUE;
+  Float_t kEdgeCut=2.5;
+  Float_t kSigmaCut=6;
+
   Bool_t isReject = kFALSE;
   Float_t edgeY = cl->GetX()*TMath::Tan(TMath::Pi()/18);
   Float_t dist  = edgeY - TMath::Abs(cl->GetY());
-  if (param)  dist  = TMath::Abs(edgeY - TMath::Abs(param->GetY()));
-  if (dist<3) isReject=kTRUE;
-  if (cl->GetType()<0) isReject=kTRUE;
+  dist  = TMath::Abs(edgeY - TMath::Abs(param->GetY()));
+  if (dist<kEdgeCut) isReject=kTRUE;
+
+  Double_t cov[3]={0.01,0.,0.01}; //TODO: correct error parametrisation    
+  AliTPCseed::GetError(cl, param,cov[0],cov[2]);
+  if (param->GetSigmaY2()<0 || param->GetSigmaZ2()<0){
+    AliError("Wrong parameters");
+    return kFALSE;
+  }
+  Double_t py = (cl->GetY()-param->GetY())/TMath::Sqrt(cov[0]*cov[0]+param->GetSigmaY2());
+  Double_t pz = (cl->GetZ()-param->GetZ())/TMath::Sqrt(cov[2]*cov[2]+param->GetSigmaZ2());
+  //
+  if ((py*py+pz*pz)>kSigmaCut*kSigmaCut) isReject=kTRUE;
+  
   return isReject;
 }