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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 | $Log$ | |
2ca99a7f | 18 | Revision 1.18 2001/03/12 17:46:43 hristov |
19 | Changes needed on Sun with CC 5.0 | |
20 | ||
5cf7bbad | 21 | Revision 1.17 2001/01/26 19:59:53 hristov |
22 | Major upgrade of AliRoot code | |
23 | ||
2ab0c725 | 24 | Revision 1.16 2001/01/17 10:56:08 hristov |
25 | Corrections to destructors | |
26 | ||
bff160c8 | 27 | Revision 1.15 2001/01/01 13:10:42 hristov |
28 | Local definition of digits removed | |
29 | ||
9d0cd3ab | 30 | Revision 1.14 2000/12/22 16:17:15 hristov |
31 | Updated START code from Alla | |
32 | ||
f3ed336b | 33 | Revision 1.13 2000/12/18 11:39:41 alibrary |
34 | Quick fix to avoid crash in display waiting for new version | |
35 | ||
b169435d | 36 | Revision 1.12 2000/12/04 08:48:19 alibrary |
37 | Fixing problems in the HEAD | |
38 | ||
0cc62300 | 39 | Revision 1.11 2000/10/13 13:14:08 hristov |
40 | Bug fixes and code cleaning | |
41 | ||
528332ba | 42 | Revision 1.10 2000/10/02 21:28:13 fca |
43 | Removal of useless dependecies via forward declarations | |
44 | ||
94de3818 | 45 | Revision 1.9 2000/07/13 16:41:29 fca |
46 | New START corrected for coding conventions | |
47 | ||
ef51244a | 48 | Revision 1.8 2000/03/27 17:24:25 alla |
49 | Modifing geometry | |
50 | ||
c345bb4f | 51 | Revision 1.6 2000/01/21 15:45:23 fca |
52 | New Version from Alla | |
53 | ||
971579f6 | 54 | Revision 1.5 2000/01/19 17:17:15 fca |
55 | Introducing a list of lists of hits -- more hits allowed for detector now | |
56 | ||
1cedd08a | 57 | Revision 1.4 1999/11/12 15:04:00 fca |
58 | Modifications from A.Maevskaya | |
59 | ||
82fc3fb3 | 60 | Revision 1.3 1999/09/29 09:24:29 fca |
61 | Introduction of the Copyright and cvs Log | |
62 | ||
4c039060 | 63 | */ |
64 | ||
6ca40650 | 65 | /////////////////////////////////////////////////////////////////////////////// |
66 | // // | |
67 | // START (T-Zero) Detector // | |
68 | // This class contains the base procedures for the START // | |
69 | // detector // | |
70 | // // | |
71 | //Begin_Html | |
72 | /* | |
73 | <img src="gif/AliSTARTClass.gif"> | |
74 | </pre> | |
75 | <br clear=left> | |
76 | <font size=+2 color=red> | |
77 | <p>The responsible person for this module is | |
78 | <a href="mailto:Alla.Maevskaia@cern.ch">Alla Maevskaia</a>. | |
79 | </font> | |
80 | <pre> | |
81 | */ | |
82 | //End_Html | |
83 | // // | |
84 | // // | |
85 | /////////////////////////////////////////////////////////////////////////////// | |
86 | ||
6ca40650 | 87 | #include <iostream.h> |
88 | #include <fstream.h> | |
971579f6 | 89 | |
90 | #include "TMath.h" | |
91 | #include "TTUBE.h" | |
92 | #include "TNode.h" | |
c345bb4f | 93 | #include "TRandom.h" |
971579f6 | 94 | #include "TGeometry.h" |
2ab0c725 | 95 | #include "TFile.h" |
0cc62300 | 96 | #include "TParticle.h" |
2ab0c725 | 97 | |
971579f6 | 98 | #include "AliRun.h" |
99 | #include "AliSTART.h" | |
100 | #include "AliSTARTdigit.h" | |
6ca40650 | 101 | #include "AliMC.h" |
971579f6 | 102 | #include "AliSTARThit.h" |
c345bb4f | 103 | #include "AliSTARTvertex.h" |
971579f6 | 104 | |
6ca40650 | 105 | ClassImp(AliSTART) |
ef51244a | 106 | |
107 | static AliSTARTdigit *digits; | |
108 | ||
6ca40650 | 109 | //_____________________________________________________________________________ |
99560b47 | 110 | AliSTART::AliSTART() |
6ca40650 | 111 | { |
112 | // | |
113 | // Default constructor for class AliSTART | |
114 | // | |
f3ed336b | 115 | fIshunt = 1; |
971579f6 | 116 | fHits = 0; |
117 | fDigits = 0; | |
6ca40650 | 118 | } |
119 | ||
120 | //_____________________________________________________________________________ | |
121 | AliSTART::AliSTART(const char *name, const char *title) | |
122 | : AliDetector(name,title) | |
123 | { | |
124 | // | |
125 | // Standard constructor for START Detector | |
126 | // | |
971579f6 | 127 | |
c345bb4f | 128 | |
6ca40650 | 129 | // |
130 | // Initialise Hit array | |
971579f6 | 131 | fHits = new TClonesArray("AliSTARThit", 405); |
b169435d | 132 | gAlice->AddHitList(fHits); |
6ca40650 | 133 | |
f3ed336b | 134 | fIshunt = 1; |
c345bb4f | 135 | fIdSens = 0; |
6ca40650 | 136 | SetMarkerColor(kRed); |
137 | } | |
bff160c8 | 138 | |
139 | //_____________________________________________________________________________ | |
140 | AliSTART::~AliSTART() { | |
141 | if (fHits) { | |
142 | fHits->Delete(); | |
143 | delete fHits; | |
144 | } | |
145 | } | |
6ca40650 | 146 | |
147 | //_____________________________________________________________________________ | |
148 | void AliSTART::AddHit(Int_t track, Int_t *vol, Float_t *hits) | |
149 | { | |
150 | // | |
151 | // Add a START hit | |
152 | // | |
153 | TClonesArray &lhits = *fHits; | |
154 | new(lhits[fNhits++]) AliSTARThit(fIshunt,track,vol,hits); | |
155 | } | |
971579f6 | 156 | |
157 | //_____________________________________________________________________________ | |
c345bb4f | 158 | |
971579f6 | 159 | void AliSTART::AddDigit(Int_t *tracks,Int_t *digits) |
160 | { | |
c345bb4f | 161 | |
f3ed336b | 162 | // Add a START digit to the list. Dummy function. |
c345bb4f | 163 | |
971579f6 | 164 | } |
c345bb4f | 165 | |
6ca40650 | 166 | //_____________________________________________________________________________ |
167 | void AliSTART::BuildGeometry() | |
168 | { | |
169 | // | |
170 | // Build simple ROOT TNode geometry for event display | |
171 | // | |
ef51244a | 172 | TNode *node, *top; |
6ca40650 | 173 | const int kColorSTART = 19; |
f3ed336b | 174 | |
ef51244a | 175 | top=gAlice->GetGeometry()->GetNode("alice"); |
6ca40650 | 176 | |
177 | // START define the different volumes | |
178 | new TRotMatrix("rot999","rot999", 90,0,90,90,180,0); | |
179 | ||
2ca99a7f | 180 | new TTUBE("S_0ST1","START volume 1","void",5.,10.7,5.3); |
ef51244a | 181 | top->cd(); |
2ca99a7f | 182 | node = new TNode("0ST1","0ST01","S_0ST1",0,0,75.,""); |
ef51244a | 183 | node->SetLineColor(kColorSTART); |
184 | fNodes->Add(node); | |
6ca40650 | 185 | |
2ca99a7f | 186 | new TTUBE("S_0ST2","START volume 2","void",5.,10.7,5.3); |
ef51244a | 187 | top->cd(); |
2ca99a7f | 188 | node = new TNode("0ST2","0ST2","S_0ST2",0,0,-75,"rot999"); |
ef51244a | 189 | node->SetLineColor(kColorSTART); |
190 | fNodes->Add(node); | |
6ca40650 | 191 | } |
192 | ||
193 | //_____________________________________________________________________________ | |
194 | Int_t AliSTART::DistanceToPrimitive(Int_t px, Int_t py) | |
195 | { | |
196 | // | |
197 | // Calculate the distance from the mouse to the START on the screen | |
198 | // Dummy routine | |
199 | // | |
200 | return 9999; | |
201 | } | |
202 | ||
6ca40650 | 203 | //------------------------------------------------------------------------- |
204 | void AliSTART::Init() | |
205 | { | |
206 | // | |
207 | // Initialis the START after it has been built | |
208 | Int_t i; | |
6ca40650 | 209 | // |
210 | printf("\n"); | |
211 | for(i=0;i<35;i++) printf("*"); | |
212 | printf(" START_INIT "); | |
213 | for(i=0;i<35;i++) printf("*"); | |
214 | printf("\n"); | |
215 | // | |
216 | // Here the START initialisation code (if any!) | |
217 | for(i=0;i<80;i++) printf("*"); | |
218 | printf("\n"); | |
6ca40650 | 219 | |
220 | } | |
221 | ||
222 | //--------------------------------------------------------------------------- | |
2ab0c725 | 223 | void AliSTART::MakeBranch(Option_t* option, char *file) |
6ca40650 | 224 | { |
ef51244a | 225 | // |
226 | // Specific START branches | |
227 | // | |
6ca40650 | 228 | // Create Tree branches for the START. |
c345bb4f | 229 | Int_t buffersize = 400; |
6ca40650 | 230 | char branchname[10]; |
231 | sprintf(branchname,"%s",GetName()); | |
232 | ||
2ab0c725 | 233 | AliDetector::MakeBranch(option,file); |
6ca40650 | 234 | |
5cf7bbad | 235 | const char *cD = strstr(option,"D"); |
2ab0c725 | 236 | |
237 | if (cD) { | |
238 | digits = new AliSTARTdigit(); | |
239 | gAlice->MakeBranchInTree(gAlice->TreeD(), | |
240 | branchname, "AliSTARTdigit", digits, buffersize, 1, file) ; | |
241 | } | |
c345bb4f | 242 | /* |
2ab0c725 | 243 | char *cR = strstr(option,"R"); |
244 | ||
245 | if (cR) { | |
246 | gAlice->MakeBranchInTree(gAlice->TreeR(), | |
247 | branchname, "Int_t", &fZposit, buffersize, 1, file) ; | |
248 | } | |
c345bb4f | 249 | */ |
6ca40650 | 250 | } |
971579f6 | 251 | |
252 | //_____________________________________________________________________________ | |
c345bb4f | 253 | |
971579f6 | 254 | void AliSTART::Hit2digit(Int_t evnum) |
255 | { | |
ef51244a | 256 | // |
257 | // From hits to digits | |
258 | // | |
259 | Float_t x,y,e; | |
971579f6 | 260 | Int_t nbytes = 0; |
ef51244a | 261 | Int_t hit; |
971579f6 | 262 | Int_t nhits; |
263 | Int_t volume,pmt; | |
c345bb4f | 264 | char nameTH[8],nameTD[8]; |
265 | Float_t timediff,timeright,timeleft,timeav; | |
266 | Float_t besttimeright,besttimeleft,meanTime; | |
ef51244a | 267 | Int_t channelWidth=10; |
971579f6 | 268 | |
269 | TParticle *particle; | |
971579f6 | 270 | AliSTARThit *startHit; |
271 | ||
c345bb4f | 272 | Int_t buffersize=256; |
273 | Int_t split=1; | |
274 | ||
275 | digits= new AliSTARTdigit(); | |
276 | TBranch *bDig=0; | |
971579f6 | 277 | |
c345bb4f | 278 | |
279 | // Event ------------------------- LOOP | |
280 | ||
281 | sprintf(nameTD,"TreeD%d",evnum); | |
ef51244a | 282 | TTree *td = new TTree(nameTD,"START"); |
283 | bDig = td->Branch("START","AliSTARTdigit",&digits,buffersize,split); | |
971579f6 | 284 | |
285 | besttimeright=9999.; | |
286 | besttimeleft=9999.; | |
ef51244a | 287 | Int_t timeDiff=0; |
288 | Int_t timeAv=0; | |
971579f6 | 289 | |
290 | Int_t nparticles = gAlice->GetEvent(evnum); | |
291 | if (nparticles <= 0) return; | |
292 | printf("\n nparticles %d\n",nparticles); | |
293 | ||
c345bb4f | 294 | |
971579f6 | 295 | sprintf(nameTH,"TreeH%d",evnum); |
296 | printf("%s\n",nameTH); | |
ef51244a | 297 | TTree *th = gAlice->TreeH(); |
298 | Int_t ntracks = (Int_t) th->GetEntries(); | |
971579f6 | 299 | if (ntracks<=0) return; |
300 | // Start loop on tracks in the hits containers | |
301 | for (Int_t track=0; track<ntracks;track++) { | |
302 | gAlice->ResetHits(); | |
ef51244a | 303 | nbytes += th->GetEvent(track); |
2ab0c725 | 304 | particle=gAlice->Particle(track); |
c345bb4f | 305 | nhits =fHits->GetEntriesFast(); |
306 | ||
971579f6 | 307 | for (hit=0;hit<nhits;hit++) { |
308 | startHit = (AliSTARThit*)fHits->UncheckedAt(hit); | |
309 | pmt=startHit->fPmt; | |
310 | e=startHit->fEtot; | |
94de3818 | 311 | x=startHit->X(); |
312 | y=startHit->Y(); | |
971579f6 | 313 | volume = startHit->fVolume; |
314 | if(volume==1){ | |
315 | timeright = startHit->fTime; | |
316 | if(timeright<besttimeright) { | |
317 | besttimeright=timeright; | |
971579f6 | 318 | } //timeright |
319 | }//time for right shoulder | |
320 | if(volume==2){ | |
321 | timeleft = startHit->fTime; | |
322 | // printf("timeleft %f\n",timeleft); | |
323 | if(timeleft<besttimeleft) { | |
324 | besttimeleft=timeleft; | |
971579f6 | 325 | } //timeleftbest |
326 | }//time for left shoulder | |
327 | } //hit loop | |
328 | } //track loop | |
971579f6 | 329 | |
c345bb4f | 330 | //folding with experimental time distribution |
ef51244a | 331 | Float_t besttimerightGaus=gRandom->Gaus(besttimeright,0.05); |
332 | Float_t besttimeleftGaus=gRandom->Gaus(besttimeleft,0.05); | |
333 | timediff=besttimerightGaus-besttimeleftGaus; | |
334 | meanTime=(besttimerightGaus+besttimeleftGaus)/2.; | |
335 | if ( TMath::Abs(timediff)<2. && meanTime<3.) | |
c345bb4f | 336 | { |
ef51244a | 337 | //we assume centre of bunch is 5ns after TTS signal |
338 | //TOF values are relative of the end of bunch | |
339 | Float_t ppBunch=25; | |
971579f6 | 340 | |
ef51244a | 341 | ppBunch=ppBunch-10/2; |
c345bb4f | 342 | Float_t t1=1000.*besttimeleftGaus; |
343 | Float_t t2=1000.*besttimerightGaus; | |
ef51244a | 344 | t1=t1/channelWidth+ppBunch; //time in ps to channelWidth |
345 | t2=t2/channelWidth+ppBunch; //time in ps to channelWidth | |
c345bb4f | 346 | |
347 | timeav=(t1+t2)/2.; | |
348 | ||
349 | // Time to TDC signal | |
350 | // 256 channels for timediff, range 1ns | |
351 | ||
ef51244a | 352 | timediff=128+1000*timediff/channelWidth; // time in ps |
353 | ||
354 | timeAv = (Int_t)(timeav); // time (ps) channel numbres | |
355 | timeDiff = (Int_t)(timediff); // time ( ps) channel numbres | |
356 | digits->Set(timeAv,timeDiff); | |
357 | } | |
f3ed336b | 358 | else |
359 | {timeAv=999999; timeDiff=99999;} | |
360 | ||
361 | td->Fill(); | |
362 | printf("digits-> %d \n",digits->GetTime()); | |
363 | td->Write(); | |
c345bb4f | 364 | |
f3ed336b | 365 | } |
c345bb4f | 366 | |
367 | ||
368 | ||
369 | ||
370 | ||
371 | ||
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373 | ||
374 | ||
6ca40650 | 375 | |
971579f6 | 376 | |
ef51244a | 377 | |
971579f6 | 378 | |
c345bb4f | 379 |