Gabriele Cosmo
141 lines
5.3 KiB
C++
141 lines
5.3 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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//
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/// \file VG01DetectorConstruction.cc
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/// \brief Implementation of the VG01DetectorConstruction class
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// Authors: J. Apostolakis & S. Wenzel (CERN) 2018-2021
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//
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// Derived from FullCMS code by Mihaly Novak (2017-18)
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#include "VG01DetectorConstruction.hh"
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#include "globals.hh"
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#include "G4SystemOfUnits.hh"
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#include "G4VisAttributes.hh"
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#include "G4UniformMagField.hh"
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#include "G4FieldManager.hh"
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#include "G4TransportationManager.hh"
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#include "G4VPhysicalVolume.hh"
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#include "G4RunManager.hh"
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#include "VG01DetectorMessenger.hh"
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#include "G4RunManager.hh"
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#include "G4TransportationManager.hh"
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#include "G4PropagatorInField.hh"
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#include "G4VecGeomConverter.h"
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#include <VecGeom/management/GeoManager.h>
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G4double VG01DetectorConstruction::fglobFieldValue = 0.0;
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VG01DetectorConstruction::VG01DetectorConstruction()
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: G4VUserDetectorConstruction(), fWorld(nullptr), fFieldMgr(nullptr),
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fUniformMagField(nullptr), fDetectorMessenger(nullptr)
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{
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fGDMLFileName = "TestNTST.gdml";
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fDetectorMessenger = new VG01DetectorMessenger(this);
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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VG01DetectorConstruction::~VG01DetectorConstruction() {
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delete fDetectorMessenger;
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if (fUniformMagField) {
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delete fUniformMagField;
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}
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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G4VPhysicalVolume* VG01DetectorConstruction::Construct() {
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// parser.SetOverlapCheck(true);
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G4TransportationManager *trMgr =
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G4TransportationManager::GetTransportationManager();
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assert(trMgr);
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fParser.Read(fGDMLFileName, false);
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fWorld = (G4VPhysicalVolume *)fParser.GetWorldVolume();
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// enabling 'check' mode in G4 Navigator
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G4Navigator *nav = trMgr->GetNavigatorForTracking();
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assert(nav);
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nav->CheckMode(true);
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// nav->SetVerboseLevel(1);
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std::cout << "Enabled Check mode in G4Navigator";
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// write back
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// fParser.Write("out.gdml", fWorld);
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fFieldMgr = trMgr->GetFieldManager();
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fWorld->GetLogicalVolume()->SetVisAttributes(G4VisAttributes::GetInvisible());
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if (fWorld==nullptr) {
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G4ExceptionDescription ed;
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ed << "World volume not set properly check your setup selection criteria"
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<< "or GDML input!" << G4endl;
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G4Exception( "VG01DetectorConstruction::Construct()",
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"G4VecGeomNavExtExample_0001", FatalException, ed );
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}
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CreateMagFieldAndIntegrator();
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if (fUseVecGeom) {
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// This is converting the geometry to VecGeom and implicitely also setting
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// the navigator; We should pull this out really
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G4VecGeomConverter::Instance().SetVerbose(1);
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G4VecGeomConverter::Instance().ConvertG4Geometry(fWorld);
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G4cout << vecgeom::GeoManager::Instance().getMaxDepth() << "\n";
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}
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return fWorld;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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void VG01DetectorConstruction::CreateMagFieldAndIntegrator()
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{
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delete fUniformMagField;
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if (std::abs(fglobFieldValue)>0.0) {
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// Apply a global uniform magnetic field along the Z axis.
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// Note: only when the magnetic field (pointer) is NOT zero,
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// does the Geant4 transportion in field get activated.
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fUniformMagField =
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new G4UniformMagField(G4ThreeVector(0.0,0.0,fglobFieldValue));
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fFieldMgr->SetDetectorField(fUniformMagField);
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fFieldMgr->CreateChordFinder(fUniformMagField);
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G4cout << G4endl
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<< " *** SETTING MAGNETIC FIELD in Z direction : fieldValue = "
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<< fglobFieldValue / tesla << " tesla *** " << G4endl << G4endl;
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}
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else
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{
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fFieldMgr->SetDetectorField(nullptr);
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G4cout << G4endl
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<< " *** NO MAGNETIC FIELD SET *** " << G4endl
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<< G4endl;
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}
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}
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