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geant4/examples/advanced/CaTS/readCalorimeterHits.cc
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2021-12-10 16:15:15 +00:00

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//
// ********************************************************************
// * License and Disclaimer *
// * *
// * The Geant4 software is copyright of the Copyright Holders of *
// * the Geant4 Collaboration. It is provided under the terms and *
// * conditions of the Geant4 Software License, included in the file *
// * LICENSE and available at http://cern.ch/geant4/license . These *
// * include a list of copyright holders. *
// * *
// * Neither the authors of this software system, nor their employing *
// * institutes,nor the agencies providing financial support for this *
// * work make any representation or warranty, express or implied, *
// * regarding this software system or assume any liability for its *
// * use. Please see the license in the file LICENSE and URL above *
// * for the full disclaimer and the limitation of liability. *
// * *
// * This code implementation is the result of the scientific and *
// * technical work of the GEANT4 collaboration. *
// * By using, copying, modifying or distributing the software (or *
// * any work based on the software) you agree to acknowledge its *
// * use in resulting scientific publications, and indicate your *
// * acceptance of all terms of the Geant4 Software license. *
// ********************************************************************
//
//
//---------------------------------------------------------------------
//* |\___/| *
//* ) ( *
//* =\ /= *
//* )===( *
//* / \ CaTS: Calorimeter and Tracker Simulation *
//* | | is a flexible and extend-able framework *
//* / \ for the simulation of various detector *
//* \ / systems *
//* \__ _/ https://github.com/hanswenzel/CaTS *
//* ( ( *
//* ) ) *
//* (_( *
//* CaTS also serves as an example that demonstrates how to use *
//* opticks from within Geant4 for the creation and propagation of *
//* optical photons. *
//* see https://bitbucket.org/simoncblyth/opticks.git). *
//* Ascii Art by Joan Stark: https://www.asciiworld.com/-Cats-2-.html *
//---------------------------------------------------------------------
//
/// \file readCalorimeterHits.cc
/// \brief example how to read the CaTS::CalorimeterHits
//
// Root headers
#include "TFile.h"
#include "TSystem.h"
#include "TTree.h"
#include "TH1.h"
// project headers
#include "Event.hh"
#include "CalorimeterHit.hh"
int main(int argc, char** argv)
{
// initialize ROOT
TSystem ts;
gSystem->Load("libCaTSClassesDict");
if(argc < 3)
{
G4cout
<< "Program requires 2 arguments: name of input file, name of output file"
<< G4endl;
exit(1);
}
TFile* outfile = new TFile(argv[2], "RECREATE");
TFile fo(argv[1]);
fo.GetListOfKeys()->Print();
Event* event = new Event();
TTree* Tevt = (TTree*) fo.Get("Events");
Tevt->SetBranchAddress("event.", &event);
TBranch* fevtbranch = Tevt->GetBranch("event.");
Int_t nevent = fevtbranch->GetEntries();
std::cout << " Nr. of Events: " << nevent << std::endl;
double max = 0.;
double min = 1000000;
std::string CollectionName = argv[3];
CollectionName = CollectionName + "_Calorimeter_HC";
for(Int_t i = 0; i < nevent; i++)
{
fevtbranch->GetEntry(i);
auto* hcmap = event->GetHCMap();
for(const auto& ele : *hcmap)
{
if(ele.first.compare(CollectionName) == 0)
{
auto hits = ele.second;
G4int NbHits = hits.size();
for(G4int ii = 0; ii < NbHits; ii++)
{
CalorimeterHit* drcaloHit =
dynamic_cast<CalorimeterHit*>(hits.at(ii));
const double ed = drcaloHit->GetEdep();
if(ed > max)
max = ed;
if(ed < min)
min = ed;
}
}
}
}
outfile->cd();
TH1F* hedep =
new TH1F("energy", "edep", 100, min - 0.1 * min, max + 0.1 * max);
for(Int_t i = 0; i < nevent; i++)
{
fevtbranch->GetEntry(i);
auto* hcmap = event->GetHCMap();
for(const auto& ele : *hcmap)
{
if(ele.first.compare(CollectionName) == 0)
{
auto hits = ele.second;
G4int NbHits = hits.size();
for(G4int ii = 0; ii < NbHits; ii++)
{
CalorimeterHit* drcaloHit =
dynamic_cast<CalorimeterHit*>(hits.at(ii));
hedep->Fill(drcaloHit->GetEdep());
}
}
}
}
// hedep->Fit("gaus");
outfile->Write();
}