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4c039060 | 1 | /************************************************************************** |
2 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
3 | * * | |
4 | * Author: The ALICE Off-line Project. * | |
5 | * Contributors are mentioned in the code where appropriate. * | |
6 | * * | |
7 | * Permission to use, copy, modify and distribute this software and its * | |
8 | * documentation strictly for non-commercial purposes is hereby granted * | |
9 | * without fee, provided that the above copyright notice appears in all * | |
10 | * copies and that both the copyright notice and this permission notice * | |
11 | * appear in the supporting documentation. The authors make no claims * | |
12 | * about the suitability of this software for any purpose. It is * | |
13 | * provided "as is" without express or implied warranty. * | |
14 | **************************************************************************/ | |
15 | ||
16 | /* | |
17 | $Log$ | |
10bd7535 | 18 | Revision 1.20 2000/11/30 07:12:48 alibrary |
19 | Introducing new Rndm and QA classes | |
20 | ||
65fb704d | 21 | Revision 1.19 2000/10/26 14:13:05 morsch |
22 | - Change from coordinates theta, phi to general coordinates Coor1 and Coor2. | |
23 | - Lego generator instance can be passed in constructor. | |
24 | ||
0b27b8c7 | 25 | Revision 1.18 2000/10/02 21:28:14 fca |
26 | Removal of useless dependecies via forward declarations | |
27 | ||
94de3818 | 28 | Revision 1.17 2000/07/12 08:56:25 fca |
29 | Coding convention correction and warning removal | |
30 | ||
8918e700 | 31 | Revision 1.16 2000/05/26 08:35:03 fca |
32 | Move the check on z after z has been retrieved | |
33 | ||
119a6af6 | 34 | Revision 1.15 2000/05/16 13:10:40 fca |
35 | New method IsNewTrack and fix for a problem in Father-Daughter relations | |
36 | ||
a01a8b12 | 37 | Revision 1.14 2000/04/27 10:38:21 fca |
38 | Correct termination of Lego Run and introduce Lego getter in AliRun | |
39 | ||
838edcaf | 40 | Revision 1.13 2000/04/26 10:17:31 fca |
41 | Changes in Lego for G4 compatibility | |
42 | ||
dffd31ef | 43 | Revision 1.12 2000/04/07 11:12:33 fca |
44 | G4 compatibility changes | |
45 | ||
875c717b | 46 | Revision 1.11 2000/03/22 13:42:26 fca |
47 | SetGenerator does not replace an existing generator, ResetGenerator does | |
48 | ||
ee1dd322 | 49 | Revision 1.10 2000/02/23 16:25:22 fca |
50 | AliVMC and AliGeant3 classes introduced | |
51 | ReadEuclid moved from AliRun to AliModule | |
52 | ||
b13db077 | 53 | Revision 1.9 1999/12/03 10:54:01 fca |
54 | Fix lego summary | |
55 | ||
00719c1b | 56 | Revision 1.8 1999/10/01 09:54:33 fca |
57 | Correct logics for Lego StepManager | |
58 | ||
f059c84a | 59 | Revision 1.7 1999/09/29 09:24:29 fca |
60 | Introduction of the Copyright and cvs Log | |
61 | ||
4c039060 | 62 | */ |
63 | ||
fe4da5cc | 64 | ////////////////////////////////////////////////////////////// |
65 | ////////////////////////////////////////////////////////////// | |
66 | // | |
67 | // Utility class to evaluate the material budget from | |
68 | // a given radius to the surface of an arbitrary cylinder | |
69 | // along radial directions from the centre: | |
70 | // | |
71 | // - radiation length | |
72 | // - Interaction length | |
73 | // - g/cm2 | |
74 | // | |
75 | // Geantinos are shot in the bins in the fNtheta bins in theta | |
76 | // and fNphi bins in phi with specified rectangular limits. | |
77 | // The statistics are accumulated per | |
78 | // fRadMin < r < fRadMax and <0 < z < fZMax | |
79 | // | |
80 | // To activate this option, you can do: | |
81 | // Root > gAlice.RunLego(); | |
82 | // or Root > .x menu.C then select menu item "RunLego" | |
83 | // Note that when calling gAlice->RunLego, an optional list | |
84 | // of arguments may be specified. | |
85 | // | |
86 | //Begin_Html | |
87 | /* | |
1439f98e | 88 | <img src="picts/alilego.gif"> |
fe4da5cc | 89 | */ |
90 | //End_Html | |
91 | // | |
92 | ////////////////////////////////////////////////////////////// | |
93 | ||
94 | #include "TMath.h" | |
94de3818 | 95 | |
1578254f | 96 | #include "AliLego.h" |
8918e700 | 97 | #include "AliLegoGenerator.h" |
fe4da5cc | 98 | #include "AliConst.h" |
875c717b | 99 | #include "AliMC.h" |
94de3818 | 100 | #include "TH2.h" |
fe4da5cc | 101 | |
102 | ClassImp(AliLego) | |
103 | ||
104 | ||
105 | //___________________________________________ | |
106 | AliLego::AliLego() | |
107 | { | |
8918e700 | 108 | // |
109 | // Default constructor | |
110 | // | |
111 | fHistRadl = 0; | |
112 | fHistAbso = 0; | |
113 | fHistGcm2 = 0; | |
114 | fHistReta = 0; | |
fe4da5cc | 115 | } |
116 | ||
117 | //___________________________________________ | |
0b27b8c7 | 118 | AliLego::AliLego(const char *title, Int_t ntheta, Float_t thetamin, |
119 | Float_t thetamax, Int_t nphi, Float_t phimin, Float_t phimax, | |
b13db077 | 120 | Float_t rmin, Float_t rmax, Float_t zmax) |
121 | : TNamed("Lego Generator",title) | |
fe4da5cc | 122 | { |
8918e700 | 123 | // |
124 | // specify the angular limits and the size of the rectangular box | |
125 | // | |
0b27b8c7 | 126 | fGener = new AliLegoGenerator(ntheta, thetamin, thetamax, |
b13db077 | 127 | nphi, phimin, phimax, rmin, rmax, zmax); |
128 | ||
b13db077 | 129 | |
0b27b8c7 | 130 | |
b13db077 | 131 | fHistRadl = new TH2F("hradl","Radiation length map", |
0b27b8c7 | 132 | ntheta,thetamin,thetamax,nphi,phimin,phimax); |
b13db077 | 133 | fHistAbso = new TH2F("habso","Interaction length map", |
0b27b8c7 | 134 | ntheta,thetamin,thetamax,nphi,phimin,phimax); |
b13db077 | 135 | fHistGcm2 = new TH2F("hgcm2","g/cm2 length map", |
0b27b8c7 | 136 | ntheta,thetamin,thetamax,nphi,phimin,phimax); |
137 | } | |
138 | ||
139 | AliLego::AliLego(const char *title, AliLegoGenerator* generator) | |
140 | : TNamed("Lego Generator",title) | |
141 | { | |
142 | // | |
143 | // specify the angular limits and the size of the rectangular box | |
144 | // | |
145 | fGener = generator; | |
146 | Float_t c1min, c1max, c2min, c2max; | |
147 | Int_t n1 = fGener->NCoor1(); | |
148 | Int_t n2 = fGener->NCoor2(); | |
149 | ||
150 | fGener->Coor1Range(c1min, c1max); | |
151 | fGener->Coor2Range(c2min, c2max); | |
b13db077 | 152 | |
0b27b8c7 | 153 | fHistRadl = new TH2F("hradl","Radiation length map", |
10bd7535 | 154 | n2, c2min, c2max, n1, c1min, c1max); |
0b27b8c7 | 155 | fHistAbso = new TH2F("habso","Interaction length map", |
10bd7535 | 156 | n2, c2min, c2max, n1, c1min, c1max); |
0b27b8c7 | 157 | fHistGcm2 = new TH2F("hgcm2","g/cm2 length map", |
10bd7535 | 158 | n2, c2min, c2max, n1, c1min, c1max); |
fe4da5cc | 159 | } |
160 | ||
161 | //___________________________________________ | |
162 | AliLego::~AliLego() | |
163 | { | |
8918e700 | 164 | // |
165 | // Destructor | |
166 | // | |
167 | delete fHistRadl; | |
168 | delete fHistAbso; | |
169 | delete fHistGcm2; | |
8918e700 | 170 | delete fGener; |
fe4da5cc | 171 | } |
172 | ||
b13db077 | 173 | //___________________________________________ |
dffd31ef | 174 | void AliLego::BeginEvent() |
b13db077 | 175 | { |
8918e700 | 176 | // |
177 | // --- Set to 0 radiation length, absorption length and g/cm2 --- | |
178 | // | |
dffd31ef | 179 | fTotRadl = 0; |
180 | fTotAbso = 0; | |
181 | fTotGcm2 = 0; | |
182 | } | |
183 | ||
184 | //___________________________________________ | |
185 | void AliLego::FinishEvent() | |
186 | { | |
8918e700 | 187 | // |
188 | // Finish the event and update the histos | |
189 | // | |
0b27b8c7 | 190 | Double_t c1, c2; |
191 | c1 = fGener->CurCoor1(); | |
192 | c2 = fGener->CurCoor2(); | |
10bd7535 | 193 | fHistRadl->Fill(c2,c1,fTotRadl); |
194 | fHistAbso->Fill(c2,c1,fTotAbso); | |
195 | fHistGcm2->Fill(c2,c1,fTotGcm2); | |
b13db077 | 196 | } |
197 | ||
dffd31ef | 198 | //___________________________________________ |
199 | void AliLego::FinishRun() | |
200 | { | |
8918e700 | 201 | // |
202 | // Store histograms in current Root file | |
203 | // | |
dffd31ef | 204 | fHistRadl->Write(); |
205 | fHistAbso->Write(); | |
206 | fHistGcm2->Write(); | |
dffd31ef | 207 | |
208 | // Delete histograms from memory | |
209 | fHistRadl->Delete(); fHistRadl=0; | |
210 | fHistAbso->Delete(); fHistAbso=0; | |
211 | fHistGcm2->Delete(); fHistGcm2=0; | |
dffd31ef | 212 | } |
213 | ||
8918e700 | 214 | //___________________________________________ |
215 | void AliLego::Copy(AliLego &lego) const | |
216 | { | |
217 | // | |
218 | // Copy *this onto lego -- not implemented | |
219 | // | |
220 | Fatal("Copy","Not implemented!\n"); | |
221 | } | |
dffd31ef | 222 | |
b13db077 | 223 | //___________________________________________ |
224 | void AliLego::StepManager() | |
225 | { | |
226 | // called from AliRun::Stepmanager from gustep. | |
227 | // Accumulate the 3 parameters step by step | |
228 | ||
229 | static Float_t t; | |
230 | Float_t a,z,dens,radl,absl; | |
231 | Int_t i; | |
232 | ||
233 | Float_t step = gMC->TrackStep(); | |
234 | ||
235 | Float_t vect[3], dir[3]; | |
236 | TLorentzVector pos, mom; | |
237 | ||
119a6af6 | 238 | gMC->CurrentMaterial(a,z,dens,radl,absl); |
239 | ||
a01a8b12 | 240 | if (z < 1) return; |
241 | ||
b13db077 | 242 | gMC->TrackPosition(pos); |
243 | gMC->TrackMomentum(mom); | |
b13db077 | 244 | // --- See if we have to stop now |
245 | if (TMath::Abs(pos[2]) > fGener->ZMax() || | |
246 | pos[0]*pos[0] +pos[1]*pos[1] > fGener->RadMax()*fGener->RadMax()) { | |
a01a8b12 | 247 | if (!gMC->IsNewTrack()) { |
b13db077 | 248 | // Not the first step, add past contribution |
249 | fTotAbso += t/absl; | |
250 | fTotRadl += t/radl; | |
251 | fTotGcm2 += t*dens; | |
0b27b8c7 | 252 | // Int_t copy; |
253 | // Int_t id = gMC->CurrentVolID(copy); | |
254 | // char* vol = gMC->VolName(id); | |
255 | ||
256 | // printf("\n %f %f %f %f %s ", fTotRadl, vect[0], vect[1], vect[2], vol); | |
257 | ||
b13db077 | 258 | } |
259 | gMC->StopTrack(); | |
260 | return; | |
261 | } | |
262 | ||
263 | // --- See how long we have to go | |
264 | for(i=0;i<3;++i) { | |
265 | vect[i]=pos[i]; | |
266 | dir[i]=mom[i]; | |
267 | } | |
268 | ||
269 | t = fGener->PropagateCylinder(vect,dir,fGener->RadMax(),fGener->ZMax()); | |
270 | ||
271 | if(step) { | |
272 | fTotAbso += step/absl; | |
273 | fTotRadl += step/radl; | |
274 | fTotGcm2 += step*dens; | |
0b27b8c7 | 275 | // Int_t copy; |
276 | // Int_t id = gMC->CurrentVolID(copy); | |
277 | // char* vol = gMC->VolName(id); | |
278 | // printf("\n %f %f %f %f %s %f ", fTotRadl, vect[0], vect[1], vect[2], vol, t); | |
b13db077 | 279 | } |
280 | } | |
281 | ||
0b27b8c7 | 282 | |
283 | ||
284 | ||
285 |