Gabriele Cosmo
141 lines
5.2 KiB
C++
141 lines
5.2 KiB
C++
//
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// ********************************************************************
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// * License and Disclaimer *
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// * *
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// * The Geant4 software is copyright of the Copyright Holders of *
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// * the Geant4 Collaboration. It is provided under the terms and *
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// * conditions of the Geant4 Software License, included in the file *
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// * LICENSE and available at http://cern.ch/geant4/license . These *
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// * include a list of copyright holders. *
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// * *
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// * Neither the authors of this software system, nor their employing *
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// * institutes,nor the agencies providing financial support for this *
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// * work make any representation or warranty, express or implied, *
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// * regarding this software system or assume any liability for its *
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// * use. Please see the license in the file LICENSE and URL above *
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// * for the full disclaimer and the limitation of liability. *
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// * *
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// * This code implementation is the result of the scientific and *
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// * technical work of the GEANT4 collaboration. *
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// * By using, copying, modifying or distributing the software (or *
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// * any work based on the software) you agree to acknowledge its *
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// * use in resulting scientific publications, and indicate your *
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// * acceptance of all terms of the Geant4 Software license. *
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// ********************************************************************
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//
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/// \file eventgenerator/HepMC/HepMCEx01/src/HepMCG4Interface.cc
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/// \brief Implementation of the HepMCG4Interface class
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//
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// $Id: HepMCG4Interface.cc 77801 2013-11-28 13:33:20Z gcosmo $
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//
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#include "HepMCG4Interface.hh"
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#include "G4RunManager.hh"
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#include "G4LorentzVector.hh"
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#include "G4Event.hh"
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#include "G4PrimaryParticle.hh"
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#include "G4PrimaryVertex.hh"
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#include "G4TransportationManager.hh"
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#include "G4PhysicalConstants.hh"
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#include "G4SystemOfUnits.hh"
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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HepMCG4Interface::HepMCG4Interface()
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: hepmcEvent(0)
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{
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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HepMCG4Interface::~HepMCG4Interface()
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{
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delete hepmcEvent;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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G4bool HepMCG4Interface::CheckVertexInsideWorld
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(const G4ThreeVector& pos) const
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{
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G4Navigator* navigator= G4TransportationManager::GetTransportationManager()
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-> GetNavigatorForTracking();
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G4VPhysicalVolume* world= navigator-> GetWorldVolume();
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G4VSolid* solid= world-> GetLogicalVolume()-> GetSolid();
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EInside qinside= solid-> Inside(pos);
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if( qinside != kInside) return false;
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else return true;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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void HepMCG4Interface::HepMC2G4(const HepMC::GenEvent* hepmcevt,
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G4Event* g4event)
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{
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for(HepMC::GenEvent::vertex_const_iterator vitr= hepmcevt->vertices_begin();
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vitr != hepmcevt->vertices_end(); ++vitr ) { // loop for vertex ...
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// real vertex?
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G4bool qvtx=false;
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for (HepMC::GenVertex::particle_iterator
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pitr= (*vitr)->particles_begin(HepMC::children);
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pitr != (*vitr)->particles_end(HepMC::children); ++pitr) {
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if (!(*pitr)->end_vertex() && (*pitr)->status()==1) {
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qvtx=true;
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break;
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}
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}
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if (!qvtx) continue;
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// check world boundary
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HepMC::FourVector pos= (*vitr)-> position();
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G4LorentzVector xvtx(pos.x(), pos.y(), pos.z(), pos.t());
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if (! CheckVertexInsideWorld(xvtx.vect()*mm)) continue;
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// create G4PrimaryVertex and associated G4PrimaryParticles
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G4PrimaryVertex* g4vtx=
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new G4PrimaryVertex(xvtx.x()*mm, xvtx.y()*mm, xvtx.z()*mm,
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xvtx.t()*mm/c_light);
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for (HepMC::GenVertex::particle_iterator
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vpitr= (*vitr)->particles_begin(HepMC::children);
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vpitr != (*vitr)->particles_end(HepMC::children); ++vpitr) {
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if( (*vpitr)->status() != 1 ) continue;
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G4int pdgcode= (*vpitr)-> pdg_id();
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pos= (*vpitr)-> momentum();
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G4LorentzVector p(pos.px(), pos.py(), pos.pz(), pos.e());
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G4PrimaryParticle* g4prim=
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new G4PrimaryParticle(pdgcode, p.x()*GeV, p.y()*GeV, p.z()*GeV);
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g4vtx-> SetPrimary(g4prim);
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}
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g4event-> AddPrimaryVertex(g4vtx);
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}
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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HepMC::GenEvent* HepMCG4Interface::GenerateHepMCEvent()
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{
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HepMC::GenEvent* aevent= new HepMC::GenEvent();
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return aevent;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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void HepMCG4Interface::GeneratePrimaryVertex(G4Event* anEvent)
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{
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// delete previous event object
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delete hepmcEvent;
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// generate next event
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hepmcEvent= GenerateHepMCEvent();
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if(! hepmcEvent) {
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G4cout << "HepMCInterface: no generated particles. run terminated..."
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<< G4endl;
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G4RunManager::GetRunManager()-> AbortRun();
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return;
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}
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HepMC2G4(hepmcEvent, anEvent);
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}
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