extended/analysis/AnaEx01/src/HistoManager.cc

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// $Id: HistoManager.cc 105494 2017-07-28 09:02:56Z gcosmo $
// 
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#include "HistoManager.hh"
#include "G4UnitsTable.hh"
#include "G4SystemOfUnits.hh"

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HistoManager::HistoManager()
 : fFactoryOn(false)
{}

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HistoManager::~HistoManager()
{}

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void HistoManager::Book()
{
  // Create or get analysis manager
  // The choice of analysis technology is done via selection of a namespace
  // in HistoManager.hh
  G4AnalysisManager* analysisManager = G4AnalysisManager::Instance();
  analysisManager->SetVerboseLevel(1);
  analysisManager->SetNtupleMerging(true);
      
  // Create directories 
  analysisManager->SetHistoDirectoryName("histo");
  analysisManager->SetNtupleDirectoryName("ntuple");
    
  // Open an output file
  //
  G4bool fileOpen = analysisManager->OpenFile("AnaEx01");
  if (! fileOpen) {
    G4cerr << "\n---> HistoManager::Book(): cannot open " 
           << analysisManager->GetFileName() << G4endl;
    return;
  }
  
  // Create histograms.
  // Histogram ids are generated automatically starting from 0.
  // The start value can be changed by:
  // analysisManager->SetFirstHistoId(1);  
  
  // id = 0
  analysisManager->CreateH1("EAbs","Edep in absorber (MeV)", 100, 0., 800*MeV);
  // id = 1
  analysisManager->CreateH1("EGap","Edep in gap (MeV)", 100, 0., 100*MeV);
  // id = 2
  analysisManager->CreateH1("LAbs","trackL in absorber (mm)", 100, 0., 1*m);
  // id = 3
  analysisManager->CreateH1("LGap","trackL in gap (mm)", 100, 0., 50*cm);

  // Create ntuples.
  // Ntuples ids are generated automatically starting from 0.
  // The start value can be changed by:
  // analysisManager->SetFirstMtupleId(1);  
  
  // Create 1st ntuple (id = 0)
  analysisManager->CreateNtuple("Ntuple1", "Edep");
  analysisManager->CreateNtupleDColumn("Eabs"); // column Id = 0
  analysisManager->CreateNtupleDColumn("Egap"); // column Id = 1
  analysisManager->FinishNtuple();

  // Create 2nd ntuple (id = 1)
  //    
  analysisManager->CreateNtuple("Ntuple2", "TrackL");
  analysisManager->CreateNtupleDColumn("Labs"); // column Id = 0
  analysisManager->CreateNtupleDColumn("Lgap"); // column Id = 1
  analysisManager->FinishNtuple();
  
  fFactoryOn = true;       

  G4cout << "\n----> Output file is open in " 
         << analysisManager->GetFileName() << "." 
         << analysisManager->GetFileType() << G4endl;
}

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void HistoManager::Save()
{
  if (! fFactoryOn) return;
  
  G4AnalysisManager* analysisManager = G4AnalysisManager::Instance();    
  analysisManager->Write();
  analysisManager->CloseFile(); 
   
  G4cout << "\n----> Histograms and ntuples are saved\n" << G4endl;
      
  delete G4AnalysisManager::Instance();
  fFactoryOn = false;
}

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void HistoManager::FillHisto(G4int ih, G4double xbin, G4double weight)
{
  G4AnalysisManager* analysisManager = G4AnalysisManager::Instance(); 
  analysisManager->FillH1(ih, xbin, weight);
}

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void HistoManager::Normalize(G4int ih, G4double fac)
{
  G4AnalysisManager* analysisManager = G4AnalysisManager::Instance(); 
  G4H1* h1 = analysisManager->GetH1(ih);
  if (h1) h1->scale(fac);
}

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void HistoManager::FillNtuple(G4double energyAbs, G4double energyGap,
                              G4double trackLAbs, G4double trackLGap)
{                
  G4AnalysisManager* analysisManager = G4AnalysisManager::Instance();
  // Fill 1st ntuple ( id = 0)
  analysisManager->FillNtupleDColumn(0, 0, energyAbs);
  analysisManager->FillNtupleDColumn(0, 1, energyGap);
  analysisManager->AddNtupleRow(0);  
  // Fill 2nd ntuple ( id = 1)
  analysisManager->FillNtupleDColumn(1, 0, trackLAbs);
  analysisManager->FillNtupleDColumn(1, 1, trackLGap);
  analysisManager->AddNtupleRow(1);  
}  

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void HistoManager::PrintStatistic()
{
  if (! fFactoryOn) return;

  G4AnalysisManager* analysisManager = G4AnalysisManager::Instance();
    
  G4cout << "\n ----> print histograms statistic \n" << G4endl;
  for ( G4int i=0; i<analysisManager->GetNofH1s(); ++i ) {
    G4String name = analysisManager->GetH1Name(i);
    G4H1* h1 = analysisManager->GetH1(i);
    
    G4String unitCategory;
    if (name[0U] == 'E' ) unitCategory = "Energy"; 
    if (name[0U] == 'L' ) unitCategory = "Length";
         // we use an explicit unsigned int type for operator [] argument
         // to avoid problems with windows compiler

    G4cout << name
           << ": mean = " << G4BestUnit(h1->mean(), unitCategory) 
           << " rms = " << G4BestUnit(h1->rms(), unitCategory ) 
           << G4endl;
  }
}

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