Gabriele Cosmo
142 lines
4.9 KiB
C++
142 lines
4.9 KiB
C++
//
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// ********************************************************************
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// * DISCLAIMER *
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// * *
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// * The following disclaimer summarizes all the specific disclaimers *
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// * of contributors to this software. The specific disclaimers,which *
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// * govern, are listed with their locations in: *
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// * http://cern.ch/geant4/license *
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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. *
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// * *
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// * This code implementation is the intellectual property of the *
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// * GEANT4 collaboration. *
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// * By copying, distributing or modifying the Program (or any work *
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// * based on the Program) you indicate your acceptance of this *
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// * statement, and all its terms. *
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// ********************************************************************
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//
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// ====================================================================
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//
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// HepMCG4Interface.cc
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// $Id: HepMCG4Interface.cc,v 1.2 2003/12/09 15:30:52 gunter Exp $
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//
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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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////////////////////////////////////
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HepMCG4Interface::HepMCG4Interface()
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: hepmcEvent(0)
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////////////////////////////////////
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{
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}
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/////////////////////////////////////
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HepMCG4Interface::~HepMCG4Interface()
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/////////////////////////////////////
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{
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delete hepmcEvent;
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}
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/////////////////////////////////////////////////////////
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G4bool HepMCG4Interface::CheckVertexInsideWorld
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(const G4ThreeVector& pos) const
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/////////////////////////////////////////////////////////
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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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////////////////////////////////////////////////////////////////
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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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{
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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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G4LorentzVector xvtx= (*vitr)-> position();
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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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G4LorentzVector p= (*vpitr)-> momentum();
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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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///////////////////////////////////////////////////////
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HepMC::GenEvent* HepMCG4Interface::GenerateHepMCEvent()
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///////////////////////////////////////////////////////
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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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//////////////////////////////////////////////////////////////
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void HepMCG4Interface::GeneratePrimaryVertex(G4Event* anEvent)
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//////////////////////////////////////////////////////////////
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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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