Gabriele Cosmo
280 lines
10 KiB
C++
280 lines
10 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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// $Id$
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//
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//
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// class G4LogicalVolume Implementation
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//
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// History:
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// 01.03.05 G.Santin: Added flag for optional propagation of GetMass()
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// 17.05.02 G.Cosmo: Added flag for optional optimisation
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// 12.02.99 S.Giani: Default initialization of voxelization quality
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// 04.08.97 P.M.DeFreitas: Added methods for parameterised simulation
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// 19.08.96 P.Kent: Modified for G4VSensitive Detector
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// 11.07.95 P.Kent: Initial version
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// --------------------------------------------------------------------
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#include "G4LogicalVolume.hh"
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#include "G4LogicalVolumeStore.hh"
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#include "G4VSolid.hh"
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#include "G4Material.hh"
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#include "G4VPVParameterisation.hh"
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#include "G4VisAttributes.hh"
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#include "G4UnitsTable.hh"
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// ********************************************************************
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// Constructor - sets member data and adds to logical Store,
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// voxel pointer for optimisation set to 0 by default.
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// Initialises daughter vector to 0 length.
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// ********************************************************************
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//
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G4LogicalVolume::G4LogicalVolume( G4VSolid* pSolid,
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G4Material* pMaterial,
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const G4String& name,
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G4FieldManager* pFieldMgr,
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G4VSensitiveDetector* pSDetector,
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G4UserLimits* pULimits,
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G4bool optimise )
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: fDaughters(0,(G4VPhysicalVolume*)0), fFieldManager(pFieldMgr),
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fVoxel(0), fOptimise(optimise), fRootRegion(false), fLock(false),
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fSmartless(2.), fMass(0.), fVisAttributes(0), fRegion(0), fCutsCouple(0)
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{
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SetSolid(pSolid);
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SetMaterial(pMaterial);
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SetName(name);
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SetSensitiveDetector(pSDetector);
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SetUserLimits(pULimits);
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//
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// Add to store
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//
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G4LogicalVolumeStore::Register(this);
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}
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// ********************************************************************
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// Fake default constructor - sets only member data and allocates memory
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// for usage restricted to object persistency.
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// ********************************************************************
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//
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G4LogicalVolume::G4LogicalVolume( __void__& )
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: fDaughters(0,(G4VPhysicalVolume*)0), fFieldManager(0),
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fMaterial(0), fName(""), fSensitiveDetector(0), fSolid(0), fUserLimits(0),
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fVoxel(0), fOptimise(true), fRootRegion(false), fLock(false), fSmartless(2.),
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fMass(0.), fVisAttributes(0), fRegion(0), fCutsCouple(0), fBiasWeight(0.)
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{
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// Add to store
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//
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G4LogicalVolumeStore::Register(this);
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}
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// ********************************************************************
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// Destructor - Removes itself from solid Store
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// NOTE: Not virtual
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// ********************************************************************
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//
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G4LogicalVolume::~G4LogicalVolume()
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{
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if (!fLock && fRootRegion) // De-register root region first if not locked
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{ // and flagged as root logical-volume
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fRegion->RemoveRootLogicalVolume(this, true);
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}
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G4LogicalVolumeStore::DeRegister(this);
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}
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// ********************************************************************
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// SetFieldManager
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// ********************************************************************
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//
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void
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G4LogicalVolume::SetFieldManager(G4FieldManager* pNewFieldMgr,
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G4bool forceAllDaughters)
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{
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fFieldManager = pNewFieldMgr;
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G4int NoDaughters = GetNoDaughters();
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while ( (NoDaughters--)>0 )
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{
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G4LogicalVolume* DaughterLogVol;
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DaughterLogVol = GetDaughter(NoDaughters)->GetLogicalVolume();
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if ( forceAllDaughters || (DaughterLogVol->GetFieldManager() == 0) )
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{
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DaughterLogVol->SetFieldManager(pNewFieldMgr, forceAllDaughters);
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}
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}
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}
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// ********************************************************************
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// IsAncestor
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//
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// Finds out if the current logical volume is an ancestor of a given
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// physical volume
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// ********************************************************************
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//
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G4bool
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G4LogicalVolume::IsAncestor(const G4VPhysicalVolume* aVolume) const
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{
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G4bool isDaughter = IsDaughter(aVolume);
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if (!isDaughter)
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{
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for (G4PhysicalVolumeList::const_iterator itDau = fDaughters.begin();
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itDau != fDaughters.end(); itDau++)
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{
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isDaughter = (*itDau)->GetLogicalVolume()->IsAncestor(aVolume);
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if (isDaughter) break;
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}
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}
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return isDaughter;
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}
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// ********************************************************************
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// TotalVolumeEntities
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//
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// Returns the total number of physical volumes (replicated or placed)
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// in the tree represented by the current logical volume.
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// ********************************************************************
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//
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G4int G4LogicalVolume::TotalVolumeEntities() const
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{
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G4int vols = 1;
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for (G4PhysicalVolumeList::const_iterator itDau = fDaughters.begin();
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itDau != fDaughters.end(); itDau++)
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{
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G4VPhysicalVolume* physDaughter = (*itDau);
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vols += physDaughter->GetMultiplicity()
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*physDaughter->GetLogicalVolume()->TotalVolumeEntities();
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}
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return vols;
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}
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// ********************************************************************
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// GetMass
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//
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// Returns the mass of the logical volume tree computed from the
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// estimated geometrical volume of each solid and material associated
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// to the logical volume and its daughters.
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// NOTE: the computation may require considerable amount of time,
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// depending from the complexity of the geometry tree.
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// The returned value is cached and can be used for successive
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// calls (default), unless recomputation is forced by providing
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// 'true' for the boolean argument in input. Computation should
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// be forced if the geometry setup has changed after the previous
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// call. By setting the 'propagate' boolean flag to 'false' the
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// method returns the mass of the present logical volume only
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// (subtracted for the volume occupied by the daughter volumes).
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// The extra argument 'parMaterial' is internally used to
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// consider cases of geometrical parameterisations by material.
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// ********************************************************************
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//
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G4double G4LogicalVolume::GetMass(G4bool forced,
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G4bool propagate,
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G4Material* parMaterial)
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{
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// Return the cached non-zero value, if not forced
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//
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if ( (fMass) && (!forced) ) return fMass;
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// Global density and computed mass associated to the logical
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// volume without considering its daughters
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//
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G4Material* logMaterial = parMaterial ? parMaterial : fMaterial;
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if (!logMaterial)
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{
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std::ostringstream message;
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message << "No material associated to the logical volume: " << fName << " !"
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<< G4endl
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<< "Sorry, cannot compute the mass ...";
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G4Exception("G4LogicalVolume::GetMass()", "GeomMgt0002",
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FatalException, message);
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return 0;
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}
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if (!fSolid)
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{
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std::ostringstream message;
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message << "No solid is associated to the logical volume: " << fName << " !"
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<< G4endl
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<< "Sorry, cannot compute the mass ...";
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G4Exception("G4LogicalVolume::GetMass()", "GeomMgt0002",
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FatalException, message);
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return 0;
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}
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G4double globalDensity = logMaterial->GetDensity();
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fMass = fSolid->GetCubicVolume() * globalDensity;
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// For each daughter in the tree, subtract the mass occupied
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// and if required by the propagate flag, add the real daughter's
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// one computed recursively
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for (G4PhysicalVolumeList::const_iterator itDau = fDaughters.begin();
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itDau != fDaughters.end(); itDau++)
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{
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G4VPhysicalVolume* physDaughter = (*itDau);
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G4LogicalVolume* logDaughter = physDaughter->GetLogicalVolume();
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G4double subMass=0.;
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G4VSolid* daughterSolid = 0;
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G4Material* daughterMaterial = 0;
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// Compute the mass to subtract and to add for each daughter
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// considering its multiplicity (i.e. replicated or not) and
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// eventually its parameterisation (by solid and/or by material)
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//
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for (G4int i=0; i<physDaughter->GetMultiplicity(); i++)
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{
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G4VPVParameterisation*
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physParam = physDaughter->GetParameterisation();
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if (physParam)
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{
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daughterSolid = physParam->ComputeSolid(i, physDaughter);
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daughterSolid->ComputeDimensions(physParam, i, physDaughter);
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daughterMaterial = physParam->ComputeMaterial(i, physDaughter);
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}
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else
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{
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daughterSolid = logDaughter->GetSolid();
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daughterMaterial = logDaughter->GetMaterial();
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}
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subMass = daughterSolid->GetCubicVolume() * globalDensity;
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// Subtract the daughter's portion for the mass and, if required,
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// add the real daughter's mass computed recursively
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//
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fMass -= subMass;
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if (propagate)
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{
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fMass += logDaughter->GetMass(true, true, daughterMaterial);
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}
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}
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}
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return fMass;
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}
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void G4LogicalVolume::SetVisAttributes (const G4VisAttributes& VA)
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{
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fVisAttributes = new G4VisAttributes(VA);
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}
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