/[PAMELA software]/PamVMC/src/PamVMCStack.cxx
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Contents of /PamVMC/src/PamVMCStack.cxx

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Revision 1.5 - (show annotations) (download)
Fri Jun 12 18:39:32 2009 UTC (15 years, 5 months ago) by pam-rm2
Branch: MAIN
CVS Tags: v1r0, HEAD
Changes since 1.2: +0 -0 lines
- Introduced user-defined names of output files and random seeds number.
Users can do it use options of PamVMCApplication constructor:
PamVMCApplication(const char* name,  const char *title, const char*
filename="pamtest", Int_t seed=0).
The Random object that I use is TRandom3 object which has astronomical
large period (in case of default initialization 0). All random generators
in the code use this object by calling of gRandom singleton which keeps
it.

- Corrected TOF digitization routine. No problems with TDC hits due to
hadronic interactions anymore.

- Some small changes was done to compile code under Root 5.23. +
geant4_vmc v. 2.6 without any warnings

- Some classes of PamG4RunConfiguartion was changed for geant4_vmc v.
2.6.Some obsolete classes was deleted as soon as developers implemented
regions.

- Navigation was changed from "geomRootToGeant4" to "geomRoot", because on
VMC web page written that as soon as Geant4 has no option ONLY/MANY
translation of overlapped geometry to Geant4 through VGM could be wrong.
I'd like to stay with Root navigation:
http://root.cern.ch/root/vmc/Geant4VMC.html. This should be default
option.

- New Tracker digitization routine written by Sergio was implemented

- PamVMC again became compatible with geant4_vmc v.2.5 and ROOT 5.20.
 The problem was that ROOT developers introduced in TVirtualMC class a new
method SetMagField and new base class:TVirtualMagField from which
user-defined classes shoukd be derived

1 // $Id: PamVMCStack.cxx,v 1.0 2007/06/03
2 // Class PamVMCStack
3
4 #include <PamVMCParticle.h>
5 #include <TClonesArray.h>
6 #include <TError.h>
7 #include <TString.h>
8 #include <Riostream.h>
9
10 #include "PamVMCStack.h"
11
12 ClassImp(PamVMCStack)
13
14 PamVMCStack::PamVMCStack(Int_t size)
15 : fParticles(0),
16 fCurrentTrack(-1),
17 fNPrimary(0)
18 {
19 fParticles = new TClonesArray("PamVMCParticle", size);
20 }
21
22 PamVMCStack::PamVMCStack()
23 : fParticles(0),
24 fCurrentTrack(-1),
25 fNPrimary(0)
26 {
27
28
29 }
30
31 PamVMCStack::~PamVMCStack()
32 {
33
34 if (fParticles) fParticles->Delete();
35 delete fParticles;
36 }
37
38
39 void PamVMCStack::PushTrack(Int_t toBeDone, Int_t parent, Int_t pdg,
40 Double_t px, Double_t py, Double_t pz, Double_t e,
41 Double_t vx, Double_t vy, Double_t vz, Double_t tof,
42 Double_t polx, Double_t poly, Double_t polz,
43 TMCProcess mech, Int_t& ntr, Double_t weight,
44 Int_t is)
45 {
46 // Creates a new particle with specified properties,
47 // adds it to the particles array (fParticles) and if not done to the
48 // stack (fStack).
49 // Use PamVMCParticle::fMother[1] to store Track ID.
50
51 const Int_t kFirstDaughter=-1;
52 const Int_t kLastDaughter=-1;
53
54 TClonesArray& particlesRef = *fParticles;
55 Int_t trackId = GetNtrack();
56 PamVMCParticle* particle
57 = new(particlesRef[trackId])
58 PamVMCParticle(pdg, is, parent, trackId, kFirstDaughter, kLastDaughter,
59 px, py, pz, e, vx, vy, vz, tof);
60
61 particle->SetPolarisation(polx, poly, polz);
62 particle->SetWeight(weight);
63 particle->SetUniqueID(mech);
64
65 if (parent<0) fNPrimary++;
66
67 if (toBeDone) fStack.push(particle);
68 ntr=trackId-1;
69 }
70
71 PamVMCParticle* PamVMCStack::PopNextTrack(Int_t& itrack)
72 {
73 // Gets next particle for tracking from the stack.
74
75 itrack = -1;
76 if (fStack.empty()) return 0;
77
78 PamVMCParticle* particle = fStack.top();
79 fStack.pop();
80
81 if (!particle) return 0;
82
83 fCurrentTrack = particle->GetSecondMother();
84 itrack = fCurrentTrack;
85
86 return particle;
87 }
88
89 PamVMCParticle* PamVMCStack::PopPrimaryForTracking(Int_t i)
90 {
91 // Returns i-th particle in fParticles.
92
93
94 if (i < 0 || i >= fNPrimary)
95 Fatal("GetPrimaryForTracking", "Index out of range");
96
97 return (PamVMCParticle*)fParticles->At(i);
98 }
99
100 void PamVMCStack::Print(Option_t* /*option*/) const
101 {
102 // Prints info for all particles.
103
104 cout << "PamVMCStack Info " << endl;
105 cout << "Total number of particles: " << GetNtrack() << endl;
106 cout << "Number of primary particles: " << GetNprimary() << endl;
107
108 for (Int_t i=0; i<GetNtrack(); i++){
109 GetParticle(i)->Print();
110
111 }
112 }
113
114 void PamVMCStack::Reset()
115 {
116 // Deletes contained particles, resets particles array and stack.
117
118 fCurrentTrack = -1;
119 fNPrimary = 0;
120 fParticles->Clear("C");
121 fParticles->Compress();
122 }
123
124 void PamVMCStack::SetCurrentTrack(Int_t track)
125 {
126 // Sets the current track to a given value.
127
128 fCurrentTrack = track;
129 }
130
131 Int_t PamVMCStack::GetNtrack() const
132 {
133 // Returns the number of all tracks.
134
135 return fParticles->GetEntriesFast();
136 }
137
138 Int_t PamVMCStack::GetNprimary() const
139 {
140 // Returns the number of primary tracks.
141
142 return fNPrimary;
143 }
144
145 PamVMCParticle* PamVMCStack::GetCurrentTrack() const
146 {
147 // Returns the current track parent ID.
148
149 PamVMCParticle* current = GetParticle(fCurrentTrack);
150
151 if (!current)
152 Warning("GetCurrentTrack", "Current track not found in the stack");
153
154 return current;
155 }
156
157 Int_t PamVMCStack::GetCurrentTrackNumber() const
158 {
159 // Returns the current track ID.
160
161 return fCurrentTrack;
162 }
163
164 Int_t PamVMCStack::GetCurrentParentTrackNumber() const
165 {
166 // Returns the current track parent ID.
167
168 PamVMCParticle* current = GetCurrentTrack();
169
170 if (current)
171 return current->GetFirstMother();
172 else
173 return -1;
174 }
175
176 PamVMCParticle* PamVMCStack::GetParticle(Int_t id) const
177 {
178 // Returns id-th particle in fParticles.
179
180 if (id < 0 || id >= fParticles->GetEntriesFast()){
181 TString e="Index out of range ";
182 e+=id;
183 // Fatal("GetParticle", "Index out of range");
184 Fatal("GetParticle", e.Data());
185 }
186 return (PamVMCParticle*)fParticles->At(id);
187 }
188
189

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