+
/**************************************************************************
* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
* *
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
}
//________________________________________________________________
-AliT0CalibTimeEq::AliT0CalibTimeEq(const AliT0CalibTimeEq& calibda):TNamed(calibda)
+AliT0CalibTimeEq::AliT0CalibTimeEq(const AliT0CalibTimeEq& calibda):TNamed(calibda),
+ fMeanVertex(0),
+ fRmsVertex(0)
{
// copy constructor
SetName(calibda.GetName());
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
- Double_t mean=0;
+ Float_t meandiff, sigmadiff, meanver, meancfdtime, sigmacfdtime;
+ meandiff = sigmadiff = meanver = meancfdtime = sigmacfdtime =0;
+ Double_t rmsver=0;
+ Int_t nent=0;
+ Bool_t ok=false;
gFile = TFile::Open(filePhys);
-
if(!gFile) {
AliError("No input PHYS data found ");
}
else
{
- Char_t buf1[30];
+ ok=true;
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);
- if(cfd) mean=cfd->GetMean();
- SetTimeEq(i,mean);
- if(!cfd) AliWarning(Form("no histograms collected by PHYS DA for channel %i", i));
- if (cfd) delete cfd;
+
+ meandiff = sigmadiff = meanver = meancfdtime = sigmacfdtime =0;
+ TH1F *cfd = (TH1F*) gFile->Get(Form("CFD1minCFD%d",i+1));
+ TH1F *cfdtime = (TH1F*) gFile->Get(Form("CFD%d",i+1));
+ if(!cfd) {
+ AliWarning(Form("no Diff histograms collected by PHYS DA for channel %i", i));
+ }
+ if(!cfdtime) {
+ AliWarning(Form("no CFD histograms collected by PHYS DA for channel %i", i));
+ }
+ if(cfd) {
+ nent = Int_t(cfd->GetEntries());
+ if(nent>50) {
+ if(cfd->GetRMS()>1.5 )
+ GetMeanAndSigma(cfd, meandiff, sigmadiff);
+ if(cfd->GetRMS()<=1.5)
+ {
+ meandiff = cfd->GetMean();
+ sigmadiff=cfd->GetRMS();
+ }
+ Int_t maxBin = cfd->GetMaximumBin();
+ Double_t meanEstimate = cfd->GetBinCenter( maxBin);
+ if(TMath::Abs(meanEstimate - meandiff) > 20 ) meandiff = meanEstimate;
+ }
+ else
+ {
+ // ok=false;
+ AliWarning(Form(" Not enouph data in PMT %i- PMT1: %i ", i, nent));
+ }
+ }
+ if(cfdtime) {
+ nent = Int_t(cfdtime->GetEntries());
+ if(nent > 50 ) { //!!!!!!!!!!
+ if(cfdtime->GetRMS()>1.5 )
+ GetMeanAndSigma(cfdtime,meancfdtime, sigmacfdtime);
+ if(cfdtime->GetRMS()<=1.5)
+ {
+ meancfdtime = cfdtime->GetMean();
+ sigmacfdtime = cfdtime->GetRMS();
+ }
+ Int_t maxBin = cfdtime->GetMaximumBin();
+ Double_t meanEstimate = cfdtime->GetBinCenter( maxBin);
+ if(TMath::Abs(meanEstimate - meancfdtime) > 20 ) meancfdtime = meanEstimate;
+ }
+ else
+ {
+ // ok=false;
+ AliWarning(Form(" Not enouph data in PMT in CFD peak %i - %i ", i, nent));
+ }
+ }
+ SetTimeEq(i,meandiff);
+ SetTimeEqRms(i,sigmadiff);
+ SetCFDvalue(i,0,meancfdtime);
+ if (cfd) delete cfd;
+ if (cfdtime) delete cfdtime;
+
}
+ TH1F *ver = (TH1F*) gFile->Get("hVertex");
+ if(ver) {
+ meanver = ver->GetMean();
+ rmsver = ver->GetRMS();
+ }
+ SetMeanVertex(meanver);
+ SetRmsVertex(rmsver);
+
+ gFile->Close();
+ delete gFile;
+
+ }
+ return ok;
+}
+
+//________________________________________________________________
+ Bool_t AliT0CalibTimeEq::ComputeOfflineParams(const char* filePhys, Float_t *timecdb, Float_t *cfdvalue, Int_t badpmt)
+{
+ // compute offline equalized time
+ Float_t meandiff, sigmadiff, meanver, meancfdtime, sigmacfdtime;
+ meandiff = sigmadiff = meanver = meancfdtime = sigmacfdtime =0;
+ Int_t nent=0;
+ Bool_t ok=false;
+ TH1F *cfddiff = NULL;
+ TH1F *cfdtime = NULL;
+ TObjArray * TzeroObj = NULL;
+
+ gFile = TFile::Open(filePhys);
+ if(!gFile) {
+ AliError("No input PHYS data found ");
+ return ok;
+ }
+ else
+ {
+ meandiff = sigmadiff = meanver = meancfdtime = sigmacfdtime =0;
+ ok=true;
+ TDirectory *dr = (TDirectory*) gFile->Get("T0Calib");
+ if (dr) TzeroObj = (TObjArray*) dr->Get("T0Calib");
+ for (Int_t i=0; i<24; i++)
+ {
+ if (i != badpmt) {
+ if(TzeroObj) {
+ cfddiff = (TH1F*)TzeroObj->FindObject(Form("CFD1minCFD%d",i+1));
+ cfdtime = (TH1F*)TzeroObj->FindObject(Form("CFD%d",i+1));
+ }
+ else
+ {
+ cfddiff = (TH1F*)gFile->Get(Form("CFD1minCFD%d",i+1));
+ cfdtime = (TH1F*)gFile->Get(Form("CFD%d",i+1));
+
+ }
+ if(!cfddiff ) {
+ AliWarning(Form("no histograms collected by pass0 for diff channel %i", i));
+ SetTimeEq(i,timecdb[i]);
+ SetTimeEqRms(i,0);
+ }
+ if(cfddiff) {
+ nent = Int_t(cfddiff->GetEntries());
+ if(nent>100 ) { //!!!!!
+ if(cfddiff->GetRMS()>1.5 )
+ GetMeanAndSigma(cfddiff, meandiff, sigmadiff);
+ if(cfddiff->GetRMS()<=1.5)
+ {
+ meandiff = cfddiff->GetMean();
+ sigmadiff = cfddiff->GetRMS();
+ }
+ Int_t maxBin = cfddiff->GetMaximumBin();
+ Double_t meanEstimate = cfddiff->GetBinCenter( maxBin);
+ if(TMath::Abs(meanEstimate - meandiff) > 20 ) meandiff = meanEstimate;
+ }
+ else
+ {
+ AliWarning(Form(" Not enouph data in PMT %i- PMT1: %i ", i, nent));
+ SetTimeEq(i,timecdb[i]);
+ SetTimeEqRms(i,0);
+
+ }
+ }
+
+ if(!cfdtime ) {
+ AliWarning(Form("no histograms collected by pass0 for time channel %i", i));
+ SetTimeEq(i, cfdvalue[i]);
+ SetTimeEqRms(i, 0);
+ }
+ if(cfdtime) {
+ nent = Int_t(cfdtime->GetEntries());
+ if(nent>100 ) { //!!!!!
+ if(cfdtime->GetRMS()>1.5 )
+ GetMeanAndSigma(cfdtime,meancfdtime, sigmacfdtime);
+ if(cfdtime->GetRMS()<=1.5)
+ {
+ meancfdtime = cfdtime->GetMean();
+ sigmacfdtime=cfdtime->GetRMS();
+ }
+ Int_t maxBin = cfdtime->GetMaximumBin();
+ Double_t meanEstimate = cfdtime->GetBinCenter( maxBin);
+ if(TMath::Abs(meanEstimate - meancfdtime) > 20 ) meancfdtime = meanEstimate;
+ }
+ else
+ {
+ AliWarning(Form(" Not enouph data in PMT in CFD peak %i - %i ", i, nent));
+ SetTimeEq(i, cfdvalue[i]);
+ SetTimeEqRms(i, 0);
+ }
+ }
+
+ SetTimeEq(i,timecdb[i] + meandiff);
+ SetTimeEqRms(i,sigmadiff);
+ SetCFDvalue(i,0, meancfdtime );
+ if (cfddiff) cfddiff->Reset();
+ if (cfdtime) cfdtime->Reset();
+ } //bad pmt
+ }
gFile->Close();
delete gFile;
- }
+
}
+ return ok;
+ }
+
+//________________________________________________________________________
+void AliT0CalibTimeEq::GetMeanAndSigma(TH1F* hist, Float_t &mean, Float_t &sigma) {
+
+ const double window = 2.; //fit window
+
+ double meanEstimate, sigmaEstimate;
+ int maxBin;
+ maxBin = hist->GetMaximumBin(); //position of maximum
+ meanEstimate = hist->GetBinCenter( maxBin); // mean of gaussian sitting in maximum
+ // sigmaEstimate = hist->GetRMS();
+ sigmaEstimate = 10;
+ TF1* fit= new TF1("fit","gaus", meanEstimate - window*sigmaEstimate, meanEstimate + window*sigmaEstimate);
+ fit->SetParameters(hist->GetBinContent(maxBin), meanEstimate, sigmaEstimate);
+ hist->Fit("fit","RQ","Q");
+
+ mean = (Float_t) fit->GetParameter(1);
+ sigma = (Float_t) fit->GetParameter(2);
+
+ delete fit;
+}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff