X-Git-Url: http://git.uio.no/git/?a=blobdiff_plain;f=T0%2FAliT0Calibrator.cxx;h=8a8cbef3888efdd0aec1cf577ad4ec3df3be29f7;hb=17fd2848ebce9292da187407540f34c2e1dcf047;hp=084adf17b2826083f80c01e0d7716f1abe477ddf;hpb=74adb36ac5e440cac4f65bea860f54598ef17d55;p=u%2Fmrichter%2FAliRoot.git

diff --git a/T0/AliT0Calibrator.cxx b/T0/AliT0Calibrator.cxx
index 084adf17b28..8a8cbef3888 100644
--- a/T0/AliT0Calibrator.cxx
+++ b/T0/AliT0Calibrator.cxx
@@ -1,3 +1,4 @@
+
 /**************************************************************************
  * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
  *                                                                        *
@@ -14,40 +15,57 @@
  **************************************************************************/
 
 /* $Id$ */
-
-#include <Riostream.h>
+/***********************************************************************
+ *      this class doing calibration during reconstruction 
+ *      2 steps:
+ *      - equalizing channels
+ *      - applying walk corrections
+ *
+ * Alla.Maevskaya@cern.ch
+ *
+ **********************************************************************/      
+ 
+//#include <Riostream.h>
 
 #include "AliLog.h"
 #include "AliT0Parameters.h"
 #include "AliT0Calibrator.h"
-#include <TArrayI.h>
+#include "AliT0Reconstructor.h"
+#include "AliT0RecoParam.h"
 #include <TGraph.h>
 #include <TH1F.h>
+#include <TMath.h>
+#include <Riostream.h>
 
 ClassImp(AliT0Calibrator)
 
 //____________________________________________________________________
-  AliT0Calibrator::AliT0Calibrator():
-  fChannelWidth(0),  
-  fWalk(0)
+  AliT0Calibrator::AliT0Calibrator():TNamed(),
+				     fChannelWidth(0),  
+				     fWalk(0)
+				     
 {
-  AliT0Parameters* param = AliT0Parameters::Instance();
-  param->Init();
-  
+  //constructor
+   AliT0Parameters* param = AliT0Parameters::Instance();
+   param->Init();
+   //slewing correcion and equalizing channels
+
   fChannelWidth = param->GetChannelWidth() ;  
- 
+   //   Double_t *grX ; 
   for (Int_t i=0; i<24; i++){
+    fMaxValue[i]=0;
     fTimeDelayCFD[i] = Int_t (param->GetTimeDelayCFD(i));
-    TGraph* fu = param ->GetWalk(i);
+     TGraph* fu = param ->GetWalk(i);
+    // fWalk.AddAtAndExpand(fu,i);
+    //TGraph* fu = param ->GetAmpLEDRec(i);
     fWalk.AddAtAndExpand(fu,i);
-
+     
   }
   
-  //
 }
 //_____________________________________________________________________________
 
-AliT0Calibrator::AliT0Calibrator(const AliT0Calibrator &r):
+AliT0Calibrator::AliT0Calibrator(const AliT0Calibrator &r): TNamed(),
   fChannelWidth(0),  
   fWalk(0)
 
@@ -73,23 +91,36 @@ AliT0Calibrator &AliT0Calibrator::operator=(const AliT0Calibrator &r)
 }
 
 
-
 //____________________________________________________________________
-Int_t  AliT0Calibrator::WalkCorrection(Int_t ipmt, Int_t qt, Int_t time) 
+
+Int_t  AliT0Calibrator::WalkCorrection(Int_t refAmp,  Int_t ipmt, Int_t qt, Int_t time) 
+
 {
-  //slewing correcion and equalizing channels
+  //
+  // referemce amplitude for walk correction now read from RecoParam
+
+  Double_t *grY ; 
+
+  Int_t walk=0;
 
   Int_t timeEq=0, timeWalk=0;  
   TGraph *fu1=(TGraph*) fWalk.At(ipmt);
-  Float_t walk=fu1->Eval(Float_t(qt));
-  TH1F*hr=fu1->GetHistogram();
-  Float_t maxValue=hr->GetMaximum(50);
-  timeWalk = time + Int_t(maxValue-walk)/fChannelWidth ;
+  if(fu1 && fu1->GetN()>0) {
+    grY = fu1->GetY();
+    fMaxValue[ipmt]=grY[refAmp-1];
+    // TGraph* fu  = param ->GetAmpLEDRec(i);
+    // walk = Int_t (fMaxValue[ipmt]) + Int_t(fu1->Eval(Double_t(qt)));
+    walk = Int_t(fu1->Eval(Double_t(qt)));
+  }
+  
+  timeWalk = time - walk   ;
+  timeEq= timeWalk - fTimeDelayCFD[ipmt];
+  //   printf(" ipmt %i time before %i timeWalk %i , walk %i  qt %i fTimeDelayCFD[ipmt] %i timeEq %i \n ",
+  //	 ipmt, time,timeWalk, walk, qt,fTimeDelayCFD[ipmt], timeEq );
+     AliDebug(10,Form(" ipmt %i time before %i timeWalk %i , walk %i  qt %i timeEq %i \n ",
+     ipmt, time,timeWalk, walk, qt, timeEq ));
   
-  timeEq= timeWalk - (fTimeDelayCFD[ipmt]-fTimeDelayCFD[0]);
-  AliDebug(2,Form(" time before %i timeWalk %i ,  qt %i timeEq %i \n ",
-		  time,timeWalk, qt, timeEq ));
-  return timeEq;
+   return timeEq;
 }