From: dibari <dibari@f7af4fe6-9843-0410-8265-dc069ae4e863>
Date: Tue, 8 May 2007 15:50:35 +0000 (+0000)
Subject: Utility macro to fill ESD from kinematics.
X-Git-Url: http://git.uio.no/git/?p=u%2Fmrichter%2FAliRoot.git;a=commitdiff_plain;h=d8770a0f5d02c9ea20fd82ca6dfe22a95d86faeb

Utility macro to fill ESD from kinematics.
---

diff --git a/HMPID/HESDfromKin.C b/HMPID/HESDfromKin.C
new file mode 100644
index 00000000000..df9b7ebf6ff
--- /dev/null
+++ b/HMPID/HESDfromKin.C
@@ -0,0 +1,102 @@
+AliRunLoader *gAL=0; 
+Int_t gEvt=0; Int_t gMaxEvt=0;
+TObjArray *pNmean;
+TTree *gEsdTr;
+//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+void HESDfromKin()
+{//simulate ESD from kinematics
+
+  if(gSystem->IsFileInIncludePath("galice.root")){// tries to open session
+    if(gAlice) delete gAlice;                                               //in case we execute this in aliroot delete default AliRun object 
+    gAL=AliRunLoader::Open();                                                                    //try to open galice.root from current dir 
+    gAL->LoadgAlice();                                                                           //take new AliRun object from galice.root   
+    if(gAL->LoadHeader()) return;
+    if(gAL->LoadKinematics()) return;
+
+    AliLoader *pHL=gAL->GetDetectorLoader("HMPID");
+    pHL->LoadRecPoints();
+    AliESD *pEsd = new AliESD();   
+    TFile *pEsdFl=TFile::Open("AliESDs.root","recreate"); 
+    gEsdTr=new TTree("esdTree","Sim ESD from kinematics"); 
+    gEsdTr->Branch("ESD", &pEsd);
+         
+  }  else return;  
+
+  OpenCalib();
+    
+  SimEsd(pHL,pEsd);
+//  SimEsdHidden(pHL,pEsd);
+  
+  pEsdFl->Write();pEsdFl->Close();        
+}
+//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+void SimEsd(AliLoader *pHL,AliESD *pEsd)
+{
+  Printf("---------okokokok");
+  AliHMPIDTracker::SetFieldMap(gAL->GetAliRun()->Field(),kTRUE);
+  AliHMPID *pH=(AliHMPID*)gAL->GetAliRun()->GetDetector("HMPID");
+  Int_t mtid=-1;
+  Int_t iNevt=gAL->GetNumberOfEvents();
+  Printf("Number of events to process: %i",iNevt);
+  for(Int_t iEvt=0;iEvt<iNevt;iEvt++){//events loop
+    if(!(iEvt%50)) Printf("Events processed %i",iEvt);
+    gAL->GetEvent(iEvt);    
+    pHL->TreeR()->GetEntry(0);
+    AliStack *pStack=gAL->Stack();
+    for(Int_t i=0;i<pStack->GetNtrack();i++){
+      TParticle *pTrack=pStack->Particle(i); 
+      mtid=pTrack->GetFirstMother();
+      if(mtid>=0) continue; // only primaries
+      AliESDtrack trk(pTrack);
+      pEsd->AddTrack(&trk);
+      AliHMPIDTracker::Recon(pEsd,pH->CluLst(),pNmean);
+    }// track loop
+    pEsd->SetMagneticField(AliHMPIDTracker::GetBz());
+    gEsdTr->Fill();
+    pEsd->Reset();
+  }// event loop
+  Printf("Events processed %i",iEvt);
+  gAL->UnloadHeader();  gAL->UnloadKinematics();
+}//EsdFromStack()
+//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+void SimEsdHidden(AliLoader *pHL,AliESD *pEsd)
+{  
+  AliHMPIDTracker::SetFieldMap(gAL->GetAliRun()->Field(),kTRUE);
+  AliHMPID *pH=(AliHMPID*)gAL->GetAliRun()->GetDetector("HMPID");
+  Int_t mtid=-1;
+  Int_t iNevt=gAL->GetNumberOfEvents();
+  Printf("Number of events to process: %i",iNevt);
+  for(Int_t iEvt=0;iEvt<iNevt;iEvt++){//events loop
+    if(!(iEvt%50)) Printf("Events processed %i",iEvt);
+    gAL->GetEvent(iEvt);
+    pHL->TreeR()->GetEntry(0);
+    AliESDtrack trk;
+// Hidden Track
+    for(int iCh=AliHMPIDDigit::kMinCh;iCh<=AliHMPIDDigit::kMaxCh;iCh++){
+      AliESDtrack trk;
+       if(AliHMPIDTracker::ReconHiddenTrk(iCh,&trk,pH->CluLst(),pNmean);) continue;
+       pEsd->AddTrack(&trk);
+       Printf(" theta Cerenkov reconstructed %f",trk.GetHMPIDsignal());
+    }
+//    AliHMPIDTracker::Recon(pEsd,pH->CluLst(),pNmean);
+//      
+    pEsd->SetMagneticField(AliHMPIDTracker::GetBz());
+    gEsdTr->Fill();
+    pEsd->Reset();
+  }// event loop
+  Printf("Events processed %i",iEvt);
+  gAL->UnloadHeader();  gAL->UnloadKinematics();
+}//EsdFromStack()
+//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+void OpenCalib()
+{
+  AliCDBManager* pCDB = AliCDBManager::Instance();
+  pCDB->SetDefaultStorage("local://$HOME");
+  AliCDBEntry *pQthreEnt=pCDB->Get("HMPID/Calib/Qthre",0);
+  AliCDBEntry *pNmeanEnt=pCDB->Get("HMPID/Calib/Nmean",0);
+  
+  if(!pQthreEnt || ! pNmeanEnt) return;
+  
+  pNmean=(TObjArray*)pNmeanEnt->GetObject(); 
+}
+//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++