* provided "as is" without express or implied warranty. *
**************************************************************************/
-
-#include <Riostream.h>
-
-#include <TTree.h>
-#include <TObjArray.h>
-#include <TFile.h>
-#include <TDirectory.h>
-#include <TParticle.h>
-
-#include <AliRunLoader.h>
-#include <AliLoader.h>
-
#include "AliRICHDigitizer.h"
#include "AliRICH.h"
-#include "AliRun.h"
-#include "AliPDG.h"
+#include "AliRICHDigit.h"
+#include <AliRun.h>
+#include <AliRunLoader.h>
#include "AliRunDigitizer.h"
+#include <AliLoader.h>
+#include <AliLog.h>
+
ClassImp(AliRICHDigitizer)
-//__________________________________________________________________________________________________
-AliRICHDigitizer::AliRICHDigitizer()
-{//default constructor
-}//default ctor
-//__________________________________________________________________________________________________
-AliRICHDigitizer::AliRICHDigitizer(AliRunDigitizer *pManager)
- :AliDigitizer(pManager)
-{
-//main ctor which should be used
- if(GetDebug())Info("main ctor","Start.");
- fRich=(AliRICH*)gAlice->GetDetector("RICH");
-}//main ctor
-//__________________________________________________________________________________________________
-AliRICHDigitizer::~AliRICHDigitizer()
-{
-//dtor
- if(GetDebug())Info("dtor","Start.");
-}//dtor
-//__________________________________________________________________________________________________
+//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
void AliRICHDigitizer::Exec(Option_t*)
{
- if(GetDebug())Info("Exec","Start with %i input(s) and %i",fManager->GetNinputs(),fManager->GetOutputEventNr());
+// This methode is responsible for merging sdigits to a list of digits
+//Disintegration leeds to the fact that one hit affects several neighbouring pads, which means that the same pad might be affected by few hits.
+ AliDebug(1,Form("Start with %i input(s) for event %i",fManager->GetNinputs(),fManager->GetOutputEventNr()));
+//First we read all sdigits from all inputs
+ AliRunLoader *pInRunLoader=0;//in and out Run loaders
+ AliLoader *pInRichLoader=0;//in and out RICH loaders
+ TClonesArray sdigs("AliRICHDigit");//tmp storage for sdigits sum up from all input files
+ Int_t total=0;
+ for(Int_t inFileN=0;inFileN<fManager->GetNinputs();inFileN++){//files loop
+ pInRunLoader = AliRunLoader::GetRunLoader(fManager->GetInputFolderName(inFileN)); //get run loader from current input
+ pInRichLoader = pInRunLoader->GetLoader("RICHLoader"); if(pInRichLoader==0) continue; //no RICH in this input, check the next input
+ if (!pInRunLoader->GetAliRun()) pInRunLoader->LoadgAlice();
+ AliRICH* pInRich=(AliRICH*)pInRunLoader->GetAliRun()->GetDetector("RICH"); //take RICH from current input
+ pInRichLoader->LoadSDigits(); pInRichLoader->TreeS()->GetEntry(0); //take list of RICH sdigits from current input
+ AliDebug(1,Form("input %i has %i sdigits",inFileN,pInRich->SdiLst()->GetEntries()));
+ for(Int_t i=0;i<pInRich->SdiLst()->GetEntries();i++){ //collect sdigits from current input
+ AliRICHDigit *pSDig=(AliRICHDigit*)pInRich->SdiLst()->At(i);
+ pSDig->AddTidOffset(fManager->GetMask(inFileN)); //apply TID shift since all inputs count tracks independently starting from 0
+ new(sdigs[total++]) AliRICHDigit(*pSDig);
+ }
+ pInRichLoader->UnloadSDigits(); pInRich->SdiReset(); //close current input and reset
+ }//files loop
+
+ //PH if(sdigs.GetEntries()==0) return; //no sdigits collected, nothing to convert
- AliRunLoader *pInAL, *pOutAL;//in and out Run loaders
- AliLoader *pInRL, *pOutRL;//in and out RICH loaders
-
- pOutAL = AliRunLoader::GetRunLoader(fManager->GetOutputFolderName());
- pOutRL = pOutAL->GetLoader("RICHLoader");
+ AliRunLoader *pOutRunLoader = AliRunLoader::GetRunLoader(fManager->GetOutputFolderName()); //open output stream (only 1 possible)
+ AliLoader *pOutRichLoader = pOutRunLoader->GetLoader("RICHLoader"); //take output RICH loader
+ AliRICH *pOutRich = (AliRICH*)pOutRunLoader->GetAliRun()->GetDetector("RICH"); //take output RICH
+ pOutRichLoader->MakeTree("D"); pOutRich->MakeBranch("D"); //create TreeD in output stream
+ Sdi2Dig(&sdigs,pOutRich->DigLst());
-
- AliRICH *pRICH = (AliRICH *) gAlice->GetDetector("RICH");
+ pOutRichLoader->TreeD()->Fill(); //fill the output tree with the list of digits
+ pOutRichLoader->WriteDigits("OVERWRITE"); //serialize them to file
- if(!pOutRL->TreeD()) pOutRL->MakeTree("D"); pRICH->MakeBranch("D");
+ sdigs.Clear(); //remove all tmp sdigits
+ pOutRichLoader->UnloadDigits(); pOutRich->DigReset();
+}//Exec()
+//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+void AliRICHDigitizer::Sdi2Dig(TClonesArray *pSdiLst,TObjArray *pDigLst)
+{
+// Converts list of sdigits to 7 lists of digits, one per each chamber
+// Arguments: pSDigLst - list of all sdigits
+// pDigLst - list of 7 lists of digits
+// Returns: none
+ TClonesArray *pLst[7]; Int_t iCnt[7];
- for(Int_t inputFile=0;inputFile<fManager->GetNinputs();inputFile++){//files loop
- pInAL = AliRunLoader::GetRunLoader(fManager->GetInputFolderName(inputFile));
- pInRL = pInAL->GetLoader("RICHLoader");
- pInRL->LoadSDigits();
- pInRL->TreeD()->GetEntries(0);
- }//files loop
-
-
-
- pOutRL->TreeD()->Fill();
-
-
- pRICH->ResetDigits(); /// ??? should it be here???
+ for(Int_t i=0;i<7;i++){
+ pLst[i]=(TClonesArray*)(*pDigLst)[i];
+ iCnt[i]=pLst[i]->GetEntries(); //in principle those lists should be empty
+ }
- pOutRL->WriteDigits("OVERWRITE");
-
- pOutRL->UnloadHits();
- pOutRL->UnloadDigits();
- if(GetDebug())Info("Exec","Stop");
-}//Exec()
-//__________________________________________________________________________________________________
+ pSdiLst->Sort();
+
+ Int_t iPad=-1,iCh=-1,iNdigPad=-1,aTids[3]={-1,-1,-1}; Float_t q=-1;
+ for(Int_t i=0;i<pSdiLst->GetEntries();i++){ //sdigits loop (sorted)
+ AliRICHDigit *pSdig=(AliRICHDigit*)pSdiLst->At(i); //take current sdigit
+ if(pSdig->Pad()==iPad){ //if the same pad
+ q+=pSdig->Q(); //sum up charge
+ iNdigPad++; if(iNdigPad<=3) aTids[iNdigPad-1]=pSdig->GetTrack(0); //collect TID
+ continue;
+ }
+ if(i!=0 && AliRICHDigit::IsOverTh(q)) new((*pLst[iCh])[iCnt[iCh]++]) AliRICHDigit(iPad,(Int_t)q,aTids); //do not create digit for the very first sdigit
+ iPad=pSdig->Pad(); iCh=AliRICHDigit::A2C(iPad); //new sdigit comes, reset collectors
+ iNdigPad=1;
+ aTids[0]=pSdig->GetTrack(0);aTids[1]=aTids[2]=-1;
+ q=pSdig->Q();
+ }//sdigits loop (sorted)
+
+ if(AliRICHDigit::IsOverTh(q)) new((*pLst[iCh])[iCnt[iCh]++]) AliRICHDigit(iPad,(Int_t)q,aTids); //add the last one, in case of empty sdigits list q=-1
+ //so digit is not created
+}//Sdi2Dig()
+//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff