ExampleRawAnalysis.cpp

Example of an analysis class for raw (i.e. unreconstructed) data

This is the analysis class generated by default by KaliVedaGUI for raw data analysis.

#ifndef __EXAMPLERAWANALYSIS_H
#define __EXAMPLERAWANALYSIS_H
 
#include "KVRawDataAnalyser.h"
 
class ExampleRawAnalysis : public KVRawDataAnalyser {
   Int_t Mult;
   TString DetSigName;
   Double_t DetSigVal;
 
public:
   ExampleRawAnalysis() {}
   virtual ~ExampleRawAnalysis() {}
 
   void InitAnalysis();
   void InitRun();
   Bool_t Analysis();
   void EndRun() {}
   void EndAnalysis() {}
 
   ClassDef(ExampleRawAnalysis, 1) //Analysis of raw data
};
 
#endif

#include "ExampleRawAnalysis.h"
#include "KVMultiDetArray.h"
 
ClassImp(ExampleRawAnalysis)
 
// This class is derived from the KaliVeda class KVRawDataAnalyser.
// It is to be used for analysis of raw (i.e. unreconstructed) data.
//
// The following member functions are called in turn:
//
//    InitAnalysis():  called at the very beginning of the analysis
//    InitRun():       called everytime a run starts
//    Analysis():      called for each event
//    EndRun():        called everytime a run ends
//    EndAnalysis():   called after all requested data has been read
//
// Modify these methods as you wish in order to create your analysis class.
// Don't forget that for every class used in the analysis, you must put a
// line '#include' at the beginning of this file.
 
void ExampleRawAnalysis::InitAnalysis()
{
   // Declaration of histograms, trees, etc.
   // Called at the beginning of the analysis
   // The examples given are compatible with interactive and batch analyses.
 
   /*** DECLARING SOME HISTOGRAMS ***/
   AddHisto(new TH1F("Mult", "Number of fired detectors in each event", 1000, -.5, 999.5));
 
   /*** USING A TREE ***/
   CreateTreeFile();//<--- essential
   TTree* t = new TTree("myTree", "");
   AddTree(t);
   t->Branch("Name", &DetSigName);
   t->Branch("Value", &DetSigVal);
 
   /*** DEFINE WHERE TO SAVE THE RESULTS ***/
   // This filename will be used for interactive and PROOFlite jobs.
   // When running in batch mode, this will automatically use the job name.
   SetJobOutputFileName("ExampleRawAnalysis_results.root");
}
 
//____________________________________________________________________________//
 
void ExampleRawAnalysis::InitRun()
{
   //Initialisation performed at beginning of each run
   //  GetRunNumber() returns current run number
   //  GetCurrentRun() returns KVDBRun pointer to current run in database
   //When this method is called, the detector geometry has been initialised and
   //can be accessed through global pointer gMultiDetArray
 
   Info("InitRun", "Beginning analysis of run %d containing %llu events", GetRunNumber(), GetCurrentRun()->GetEvents());
 
   // Set tree title to name of system being analysed
   GetTree("myTree")->SetTitle(GetSystem()->GetName());
}
 
//____________________________________________________________________________//
 
Bool_t ExampleRawAnalysis::Analysis()
{
   //Analysis method called for each event
   //  GetEventNumber() returns current event number
   //  GetRunFileReader() returns object used to read data (KVRawDataReader child class)
   //  gMultiDetArray->HandledRawData() returns kTRUE if interesting data was read
   //
   //  Processing will stop if this method returns kFALSE
 
   if (gMultiDetArray->HandledRawData()) {
      // loop over all detectors and count how many fired
      Mult = 0;
      TIter it(gMultiDetArray->GetDetectors());
      // Note - if experimental set up is a combination of two or more detector arrays,
      //        and you are interested in only one of them, you could use
      //           gMultiDetArray->GetArray("[name]")->GetDetectors()
      KVDetector* det;
      while ((det = (KVDetector*)it())) {
         if (det->Fired()) {
            ++Mult;
            // if detector has a signal "QH1.FPGAEnergy", store it in tree
            if (det->HasDetectorSignal("QH1.FPGAEnergy")) {
               DetSigName = det->GetName();
               DetSigVal = det->GetDetectorSignalValue("QH1.FPGAEnergy");
               FillTree();
            }
         }
      }
      FillHisto("Mult", Mult);
   }
 
   return kTRUE;
}