| Geant4 Cross Reference |
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 //
28 //
29 // John Allison 10th August 1998.
30 // An artificial scene to find physical volumes.
31
32 #include "G4PhysicalVolumeMassScene.hh"
33
34 #include "G4VSolid.hh"
35 #include "G4Vector3D.hh"
36 #include "G4PhysicalVolumeModel.hh"
37 #include "G4LogicalVolume.hh"
38 #include "G4Polyhedron.hh"
39 #include "G4Material.hh"
40 #include "G4VPVParameterisation.hh"
41 #include "G4UnitsTable.hh"
42
43 #define G4warn G4cout
44
45 G4PhysicalVolumeMassScene::G4PhysicalVolumeMassScene
46 (G4PhysicalVolumeModel* pPVModel):
47 fpPVModel (pPVModel),
48 fVolume (0.),
49 fMass (0.),
50 fpLastPV (0),
51 fPVPCount (0),
52 fLastDepth (0),
53 fLastDensity (0.)
54 {}
55
56 G4PhysicalVolumeMassScene::~G4PhysicalVolumeMassScene () {}
57
58 void G4PhysicalVolumeMassScene::Reset ()
59 {
60 fVolume = 0.;
61 fMass = 0.;
62 fpLastPV = 0;
63 fPVPCount = 0;
64 fLastDepth = 0;
65 fLastDensity = 0.;
66 fDensityStack.clear();
67 }
68
69 void G4PhysicalVolumeMassScene::ProcessVolume (const G4VSolid& solid)
70 {
71 G4int currentDepth = fpPVModel->GetCurrentDepth();
72 G4VPhysicalVolume* pCurrentPV = fpPVModel->GetCurrentPV();
73 //G4LogicalVolume* pCurrentLV = fpPVModel->GetCurrentLV();
74 G4Material* pCurrentMaterial = fpPVModel->GetCurrentMaterial();
75
76 if (pCurrentPV != fpLastPV) {
77 fpLastPV = pCurrentPV;
78 fPVPCount = 0;
79 }
80
81 G4double currentVolume = ((G4VSolid&)solid).GetCubicVolume();
82 G4double currentDensity = pCurrentMaterial? pCurrentMaterial->GetDensity() : 0.;
83 /* Using G4Polyhedron... (gives slightly different answers on Tubs, e.g.).
84 G4Polyhedron* pPolyhedron = solid.GetPolyhedron();
85 if (!pPolyhedron) {
86 G4cout <<
87 "G4PhysicalVolumeMassScene::AccrueMass: WARNING:"
88 "\n No G4Polyhedron for" << solid.GetEntityType() <<
89 ". \"" << solid.GetName() << "\" will not be accounted."
90 "\n It will be as though not there, i.e., the density as its mother."
91 "\n Its daughters will still be found and accounted."
92 << G4endl;
93 currentVolume = 0.;
94 currentDensity = 0.;
95 }
96 */
97
98 if (currentDepth == 0) fVolume = currentVolume;
99
100 if (currentDepth > fLastDepth) {
101 fDensityStack.push_back (fLastDensity);
102 } else if (currentDepth < fLastDepth) {
103 fDensityStack.pop_back();
104 }
105 fLastDepth = currentDepth;
106 fLastDensity = currentDensity;
107 G4double motherDensity = 0.;
108 if (currentDepth > 0) motherDensity = fDensityStack.back();
109
110 G4double subtractedMass = currentVolume * motherDensity;
111 G4double addedMass = currentVolume * currentDensity;
112 fMass -= subtractedMass;
113 fMass += addedMass;
114 /* Debug
115 G4cout << "current vol = "
116 << G4BestUnit (currentVolume,"Volume")
117 << ", current density = "
118 << G4BestUnit (currentDensity, "Volumic Mass")
119 << ", mother density = "
120 << G4BestUnit (motherDensity, "Volumic Mass")
121 << G4endl;
122 G4cout << "Subtracted mass = " << G4BestUnit (subtractedMass, "Mass")
123 << ", added mass = " << G4BestUnit (addedMass, "Mass")
124 << ", new mass = " << G4BestUnit (fMass, "Mass")
125 << G4endl;
126 */
127 if (fMass < 0.) {
128 G4warn <<
129 "G4PhysicalVolumeMassScene::AccrueMass: WARNING:"
130 "\n Mass going negative for \""
131 << pCurrentPV->GetName() <<
132 "\", copy "
133 << pCurrentPV->GetCopyNo() <<
134 ". Larger than mother?"
135 << G4endl;
136 }
137 }
138