Updates for pile-up vertex (F. Prino)

[u/mrichter/AliRoot.git] / T0 / AliT0CalibTimeEq.cxx

diff --git a/T0/AliT0CalibTimeEq.cxx b/T0/AliT0CalibTimeEq.cxx
index 1b6fe260cea17ed1f75224fbf7232fa06c67441c..c66ef250434c38938f7cfd645d412edf23bcfdfe 100644 (file)
--- a/T0/AliT0CalibTimeEq.cxx
+++ b/T0/AliT0CalibTimeEq.cxx
@@ -23,7 +23,7 @@
 ///////////////////////////////////////////////////////////////////////////////
 
 #include "AliT0CalibTimeEq.h"
-
+#include "AliLog.h"
 #include <TFile.h>
 #include <TMath.h>
 #include <TF1.h>
@@ -34,13 +34,18 @@
 ClassImp(AliT0CalibTimeEq)
 
 //________________________________________________________________
-  AliT0CalibTimeEq::AliT0CalibTimeEq():TNamed()
+  AliT0CalibTimeEq::AliT0CalibTimeEq():TNamed(),
+                                      fMeanVertex(0),        
+                                      fRmsVertex(0)      
 {
   //
+
 }
 
 //________________________________________________________________
-AliT0CalibTimeEq::AliT0CalibTimeEq(const char* name):TNamed()
+AliT0CalibTimeEq::AliT0CalibTimeEq(const char* name):TNamed(),
+                                      fMeanVertex(0),        
+                                      fRmsVertex(0)      
 {
   //constructor
 
@@ -51,7 +56,9 @@ AliT0CalibTimeEq::AliT0CalibTimeEq(const char* name):TNamed()
 }
 
 //________________________________________________________________
-AliT0CalibTimeEq::AliT0CalibTimeEq(const AliT0CalibTimeEq& calibda):TNamed(calibda)            
+AliT0CalibTimeEq::AliT0CalibTimeEq(const AliT0CalibTimeEq& calibda):TNamed(calibda),           
+                                      fMeanVertex(0),        
+                                      fRmsVertex(0)      
 {
 // copy constructor
   SetName(calibda.GetName());
@@ -94,40 +101,83 @@ void  AliT0CalibTimeEq::Print(Option_t*) const
   printf("\n   ----    PM Arrays       ----\n\n");
   printf(" Time delay CFD \n");
   for (Int_t i=0; i<24; i++) printf(" CFD  %f ",fTimeEq[i]);
+  printf("\n Mean Vertex %f \n", fMeanVertex);
 } 
 
 
 //________________________________________________________________
-void AliT0CalibTimeEq::ComputeOnlineParams(const char* filePhys)
+Bool_t AliT0CalibTimeEq::ComputeOnlineParams(const char* filePhys)
 {
   // compute online equalized time
-  // Int_t npeaks = 20;
-  // Double_t sigma = 4.;
-  //  Bool_t down=false;
-  // Int_t index[20];
-
+  Double_t mean=0, meanver=0;
+  Double_t rms=0, rmsver=0;
+  Int_t nent=0;
+  Bool_t ok=false;
+  Int_t npeaks = 20;
+  Int_t sigma=3;
+  Bool_t down=false;
+  Int_t index[20];
+  Int_t nfound=0;
   gFile = TFile::Open(filePhys);
-  gFile->ls();
-  Char_t buf1[30];
- for (Int_t i=0; i<24; i++)
-  {
-    sprintf(buf1,"CFD1-CFD%d",i+1);
-    TH1F *cfd = (TH1F*) gFile->Get(buf1);
-    //    printf(" i = %d buf1 = %s\n", i, buf1);
-    Double_t mean=cfd->GetMean();
-    SetTimeEq(i,mean);
-    delete cfd;
+  if(!gFile) {
+    AliError("No input PHYS data found ");
   }
-
-  
-   gFile->Close();
-   delete gFile;
-   printf("\n\n");
-   for(int j=0;j<24;j++)
-   {
-                printf("fTimeEq[%d]=%f\n",j,fTimeEq[j]);
-   }
-
+  else
+    {
+      //    gFile->ls();
+      ok=true;
+      Char_t buf1[30];
+      for (Int_t i=0; i<24; i++)
+       {
+         sprintf(buf1,"CFD1minCFD%d",i+1);
+         TH1F *cfd = (TH1F*) gFile->Get(buf1);
+         if(!cfd) AliWarning(Form("no histograms collected by PHYS DA for channel %i", i));
+         //      printf(" i = %d buf1 = %s\n", i, buf1);
+         if(cfd) {
+           TSpectrum *s = new TSpectrum(2*npeaks,1);
+           nfound = s->Search(cfd,sigma," ",0.1);
+           if(nfound!=0){
+             Float_t *xpeak = s->GetPositionX();
+             TMath::Sort(nfound, xpeak, index,down);
+             Float_t xp = xpeak[index[0]];
+             Double_t hmax = xp+3*sigma;
+             Double_t hmin = xp-3*sigma;
+             cfd->GetXaxis()->SetRangeUser(hmin-20,hmax+20);
+             mean=cfd->GetMean();
+             rms=cfd->GetRMS();
+             nent=cfd->GetEntries();
+             if(nent<500 || rms>10. ) {
+               ok=false;
+               AliWarning(Form("Data is not good enouph in PMT %i - mean %f rsm %f nentries %i", i,mean, rms, nent));
+               
+             }
+           }
+           else 
+             {
+               ok=false;
+               AliWarning(Form("Data is not good enouph in PMT %i , no clean peak", i));
+             }
+         }
+         
+       
+          SetTimeEq(i,mean);
+          SetTimeEqRms(i,rms);
+         if (cfd) delete cfd;
+       }
+      TH1F *ver = (TH1F*) gFile->Get("hVertex");
+      if(!ver) AliWarning("no T0 histogram collected by PHYS DA ");
+      if(ver) {
+       meanver = ver->GetMean();
+       rmsver = ver->GetRMS();
+      }
+      SetMeanVertex(meanver);
+      SetRmsVertex(rmsver);
+      
+      gFile->Close();
+      delete gFile;
+
+    }
+    return ok; 
 }