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geant4/examples/advanced/CaTS/readDRCalorimeterHits.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 *
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// * 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 *
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// * 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 readDRCalorimeterHits.cc
/// \brief example how to read the CaTS::DRCalorimeterHits
//
// Root headers
#include "TFile.h"
#include "TSystem.h"
#include "TTree.h"
#include "TH1.h"
// project headers
#include "Event.hh"
#include "DRCalorimeterHit.hh"
int main(int argc, char** argv)
{
// initialize ROOT
TSystem ts;
gSystem->Load("libCaTSClassesDict");
if(argc < 4)
{
G4cout << "Program requires 3 arguments: name of input file, name of "
"output file, Volume that sensitive detector is attached to"
<< G4endl;
exit(1);
}
TFile* outfile = new TFile(argv[2], "RECREATE");
outfile->cd();
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();
G4cout << " Nr. of Events: " << nevent << G4endl;
double max = 0.;
double min = 1000000;
double nmax = 0.;
double nmin = 1000000000;
std::string CollectionName = argv[3];
CollectionName = CollectionName + "_DRCalorimeter_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++)
{
DRCalorimeterHit* drcaloHit =
dynamic_cast<DRCalorimeterHit*>(hits.at(ii));
const double ed = drcaloHit->GetEdep();
if(ed > max)
max = ed;
if(ed < min)
min = ed;
const unsigned int nceren = drcaloHit->GetNceren();
if(nceren > nmax)
nmax = nceren;
if(nceren < nmin)
nmin = nceren;
}
}
}
}
outfile->cd();
TH1F* hedep = new TH1F("energy", "edep", 100, min, max);
TH1F* hnceren = new TH1F("nceren", "nceren", 100, nmin, nmax);
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++)
{
DRCalorimeterHit* drcaloHit =
dynamic_cast<DRCalorimeterHit*>(hits.at(ii));
hedep->Fill(drcaloHit->GetEdep());
hnceren->Fill(drcaloHit->GetNceren());
}
}
}
}
// hedep->Fit("gaus");
// hnceren->Fit("gaus");
outfile->Write();
}