source: trunk/source/geometry/management/src/G4LogicalVolume.cc@ 1354

Last change on this file since 1354 was 1340, checked in by garnier, 15 years ago

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1//
2// ********************************************************************
3// * License and Disclaimer *
4// * *
5// * The Geant4 software is copyright of the Copyright Holders of *
6// * the Geant4 Collaboration. It is provided under the terms and *
7// * conditions of the Geant4 Software License, included in the file *
8// * LICENSE and available at http://cern.ch/geant4/license . These *
9// * include a list of copyright holders. *
10// * *
11// * Neither the authors of this software system, nor their employing *
12// * institutes,nor the agencies providing financial support for this *
13// * work make any representation or warranty, express or implied, *
14// * regarding this software system or assume any liability for its *
15// * use. Please see the license in the file LICENSE and URL above *
16// * for the full disclaimer and the limitation of liability. *
17// * *
18// * This code implementation is the result of the scientific and *
19// * technical work of the GEANT4 collaboration. *
20// * By using, copying, modifying or distributing the software (or *
21// * any work based on the software) you agree to acknowledge its *
22// * use in resulting scientific publications, and indicate your *
23// * acceptance of all terms of the Geant4 Software license. *
24// ********************************************************************
25//
26//
27// $Id: G4LogicalVolume.cc,v 1.35 2010/07/05 09:22:58 gcosmo Exp $
28// GEANT4 tag $Name: geommng-V09-03-05 $
29//
30//
31// class G4LogicalVolume Implementation
32//
33// History:
34// 01.03.05 G.Santin: Added flag for optional propagation of GetMass()
35// 17.05.02 G.Cosmo: Added flag for optional optimisation
36// 12.02.99 S.Giani: Default initialization of voxelization quality
37// 04.08.97 P.M.DeFreitas: Added methods for parameterised simulation
38// 19.08.96 P.Kent: Modified for G4VSensitive Detector
39// 11.07.95 P.Kent: Initial version
40// --------------------------------------------------------------------
41
42#include "G4LogicalVolume.hh"
43#include "G4LogicalVolumeStore.hh"
44#include "G4VSolid.hh"
45#include "G4Material.hh"
46#include "G4VPVParameterisation.hh"
47#include "G4VisAttributes.hh"
48
49#include "G4UnitsTable.hh"
50
51// ********************************************************************
52// Constructor - sets member data and adds to logical Store,
53// voxel pointer for optimisation set to 0 by default.
54// Initialises daughter vector to 0 length.
55// ********************************************************************
56//
57G4LogicalVolume::G4LogicalVolume( G4VSolid* pSolid,
58 G4Material* pMaterial,
59 const G4String& name,
60 G4FieldManager* pFieldMgr,
61 G4VSensitiveDetector* pSDetector,
62 G4UserLimits* pULimits,
63 G4bool optimise )
64 : fDaughters(0,(G4VPhysicalVolume*)0), fFieldManager(pFieldMgr),
65 fVoxel(0), fOptimise(optimise), fRootRegion(false), fLock(false),
66 fSmartless(2.), fMass(0.), fVisAttributes(0), fRegion(0), fCutsCouple(0)
67{
68 SetSolid(pSolid);
69 SetMaterial(pMaterial);
70 SetName(name);
71 SetSensitiveDetector(pSDetector);
72 SetUserLimits(pULimits);
73 //
74 // Add to store
75 //
76 G4LogicalVolumeStore::Register(this);
77}
78
79// ********************************************************************
80// Fake default constructor - sets only member data and allocates memory
81// for usage restricted to object persistency.
82// ********************************************************************
83//
84G4LogicalVolume::G4LogicalVolume( __void__& )
85 : fDaughters(0,(G4VPhysicalVolume*)0), fFieldManager(0),
86 fMaterial(0), fName(""), fSensitiveDetector(0), fSolid(0), fUserLimits(0),
87 fVoxel(0), fOptimise(true), fRootRegion(false), fLock(false), fSmartless(2.),
88 fMass(0.), fVisAttributes(0), fRegion(0), fCutsCouple(0), fBiasWeight(0.)
89{
90 // Add to store
91 //
92 G4LogicalVolumeStore::Register(this);
93}
94
95// ********************************************************************
96// Destructor - Removes itself from solid Store
97// NOTE: Not virtual
98// ********************************************************************
99//
100G4LogicalVolume::~G4LogicalVolume()
101{
102 if (!fLock && fRootRegion) // De-register root region first if not locked
103 { // and flagged as root logical-volume
104 fRegion->RemoveRootLogicalVolume(this, true);
105 }
106 G4LogicalVolumeStore::DeRegister(this);
107}
108
109// ********************************************************************
110// SetFieldManager
111// ********************************************************************
112//
113void
114G4LogicalVolume::SetFieldManager(G4FieldManager* pNewFieldMgr,
115 G4bool forceAllDaughters)
116{
117 fFieldManager = pNewFieldMgr;
118
119 G4int NoDaughters = GetNoDaughters();
120 while ( (NoDaughters--)>0 )
121 {
122 G4LogicalVolume* DaughterLogVol;
123 DaughterLogVol = GetDaughter(NoDaughters)->GetLogicalVolume();
124 if ( forceAllDaughters || (DaughterLogVol->GetFieldManager() == 0) )
125 {
126 DaughterLogVol->SetFieldManager(pNewFieldMgr, forceAllDaughters);
127 }
128 }
129}
130
131
132// ********************************************************************
133// IsAncestor
134//
135// Finds out if the current logical volume is an ancestor of a given
136// physical volume
137// ********************************************************************
138//
139G4bool
140G4LogicalVolume::IsAncestor(const G4VPhysicalVolume* aVolume) const
141{
142 G4bool isDaughter = IsDaughter(aVolume);
143 if (!isDaughter)
144 {
145 for (G4PhysicalVolumeList::const_iterator itDau = fDaughters.begin();
146 itDau != fDaughters.end(); itDau++)
147 {
148 isDaughter = (*itDau)->GetLogicalVolume()->IsAncestor(aVolume);
149 if (isDaughter) break;
150 }
151 }
152 return isDaughter;
153}
154
155// ********************************************************************
156// TotalVolumeEntities
157//
158// Returns the total number of physical volumes (replicated or placed)
159// in the tree represented by the current logical volume.
160// ********************************************************************
161//
162G4int G4LogicalVolume::TotalVolumeEntities() const
163{
164 G4int vols = 1;
165 for (G4PhysicalVolumeList::const_iterator itDau = fDaughters.begin();
166 itDau != fDaughters.end(); itDau++)
167 {
168 G4VPhysicalVolume* physDaughter = (*itDau);
169 vols += physDaughter->GetMultiplicity()
170 *physDaughter->GetLogicalVolume()->TotalVolumeEntities();
171 }
172 return vols;
173}
174
175// ********************************************************************
176// GetMass
177//
178// Returns the mass of the logical volume tree computed from the
179// estimated geometrical volume of each solid and material associated
180// to the logical volume and its daughters.
181// NOTE: the computation may require considerable amount of time,
182// depending from the complexity of the geometry tree.
183// The returned value is cached and can be used for successive
184// calls (default), unless recomputation is forced by providing
185// 'true' for the boolean argument in input. Computation should
186// be forced if the geometry setup has changed after the previous
187// call. By setting the 'propagate' boolean flag to 'false' the
188// method returns the mass of the present logical volume only
189// (subtracted for the volume occupied by the daughter volumes).
190// The extra argument 'parMaterial' is internally used to
191// consider cases of geometrical parameterisations by material.
192// ********************************************************************
193//
194G4double G4LogicalVolume::GetMass(G4bool forced,
195 G4bool propagate,
196 G4Material* parMaterial)
197{
198 // Return the cached non-zero value, if not forced
199 //
200 if ( (fMass) && (!forced) ) return fMass;
201
202 // Global density and computed mass associated to the logical
203 // volume without considering its daughters
204 //
205 G4Material* logMaterial = parMaterial ? parMaterial : fMaterial;
206 if (!logMaterial)
207 {
208 G4cerr << "ERROR - G4LogicalVolume::GetMass()" << G4endl
209 << " No material is associated to the logical volume: "
210 << fName << " ! Sorry, cannot compute the mass ..." << G4endl;
211 G4Exception("G4LogicalVolume::GetMass()", "InvalidSetup", FatalException,
212 "No material associated to the logical volume !");
213 return 0;
214 }
215 if (!fSolid)
216 {
217 G4cerr << "ERROR - G4LogicalVolume::GetMass()" << G4endl
218 << " No solid is associated to the logical volume: "
219 << fName << " ! Sorry, cannot compute the mass ..." << G4endl;
220 G4Exception("G4LogicalVolume::GetMass()", "InvalidSetup", FatalException,
221 "No solid associated to the logical volume !");
222 return 0;
223 }
224 G4double globalDensity = logMaterial->GetDensity();
225 fMass = fSolid->GetCubicVolume() * globalDensity;
226
227 // For each daughter in the tree, subtract the mass occupied
228 // and if required by the propagate flag, add the real daughter's
229 // one computed recursively
230
231 for (G4PhysicalVolumeList::const_iterator itDau = fDaughters.begin();
232 itDau != fDaughters.end(); itDau++)
233 {
234 G4VPhysicalVolume* physDaughter = (*itDau);
235 G4LogicalVolume* logDaughter = physDaughter->GetLogicalVolume();
236 G4double subMass=0.;
237 G4VSolid* daughterSolid = 0;
238 G4Material* daughterMaterial = 0;
239
240 // Compute the mass to subtract and to add for each daughter
241 // considering its multiplicity (i.e. replicated or not) and
242 // eventually its parameterisation (by solid and/or by material)
243 //
244 for (G4int i=0; i<physDaughter->GetMultiplicity(); i++)
245 {
246 G4VPVParameterisation*
247 physParam = physDaughter->GetParameterisation();
248 if (physParam)
249 {
250 daughterSolid = physParam->ComputeSolid(i, physDaughter);
251 daughterSolid->ComputeDimensions(physParam, i, physDaughter);
252 daughterMaterial = physParam->ComputeMaterial(i, physDaughter);
253 }
254 else
255 {
256 daughterSolid = logDaughter->GetSolid();
257 daughterMaterial = logDaughter->GetMaterial();
258 }
259 subMass = daughterSolid->GetCubicVolume() * globalDensity;
260
261 // Subtract the daughter's portion for the mass and, if required,
262 // add the real daughter's mass computed recursively
263 //
264 fMass -= subMass;
265 if (propagate)
266 {
267 fMass += logDaughter->GetMass(true, true, daughterMaterial);
268 }
269 }
270 }
271
272 return fMass;
273}
274
275void G4LogicalVolume::SetVisAttributes (const G4VisAttributes& VA)
276{
277 fVisAttributes = new G4VisAttributes(VA);
278}
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