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ee86d557 | 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 | ||
88cb7938 | 16 | /* $Id$ */ |
ee86d557 | 17 | |
4ae5bbc4 | 18 | #include <Riostream.h> |
ee86d557 | 19 | #include "TArrayI.h" |
20 | #include "TClonesArray.h" | |
e869281d | 21 | #include "AliITSdigitSSD.h" |
b0f5e3fc | 22 | #include "AliITSclusterSSD.h" |
23 | ||
24 | ClassImp(AliITSclusterSSD) | |
25 | ||
ee86d557 | 26 | //______________________________________________________________________ |
27 | AliITSclusterSSD::AliITSclusterSSD(){ | |
28 | // default constructor | |
b0f5e3fc | 29 | |
ee86d557 | 30 | fSide = kTRUE; |
31 | fDigits = 0; | |
32 | fNDigits = 0; | |
33 | fDigitsIndex = 0; | |
34 | fNCrosses = 0; | |
35 | fTotalSignal = -1; | |
36 | fNTracks = -1; | |
37 | fLeftNeighbour = kFALSE; | |
38 | fRightNeighbour = kFALSE; | |
39 | fCrossedClusterIndexes = 0; | |
40 | fConsumed=kFALSE; | |
b0f5e3fc | 41 | } |
ee86d557 | 42 | //______________________________________________________________________ |
43 | AliITSclusterSSD::AliITSclusterSSD(Int_t ndigits, Int_t *DigitIndexes, | |
44 | TObjArray *Digits, Bool_t side){ | |
45 | // non-default constructor | |
b0f5e3fc | 46 | |
ee86d557 | 47 | fNDigits = ndigits; |
48 | fDigits = Digits; | |
49 | fSide = side; | |
50 | fDigitsIndex = new TArrayI(fNDigits,DigitIndexes ); | |
51 | fNCrosses = 0; | |
52 | fCrossedClusterIndexes = new TArrayI(300); | |
53 | fLeftNeighbour = kFALSE; | |
54 | fRightNeighbour = kFALSE; | |
55 | fTotalSignal =-1; | |
56 | fNTracks = -1; | |
57 | fConsumed=kFALSE; | |
b0f5e3fc | 58 | } |
ee86d557 | 59 | //______________________________________________________________________ |
60 | AliITSclusterSSD::~AliITSclusterSSD(){ | |
61 | // destructor | |
f239b2fe | 62 | |
ee86d557 | 63 | delete fDigitsIndex; |
64 | delete fCrossedClusterIndexes; | |
65 | } | |
66 | //______________________________________________________________________ | |
ac74f489 | 67 | AliITSclusterSSD::AliITSclusterSSD(const AliITSclusterSSD &OneSCluster) : |
68 | TObject(OneSCluster){ | |
ee86d557 | 69 | // copy constructor |
b0f5e3fc | 70 | |
ee86d557 | 71 | if (this == &OneSCluster) return; |
72 | fNDigits = OneSCluster.fNDigits; | |
73 | fSide=OneSCluster.fSide; | |
74 | fDigits=OneSCluster.fDigits; | |
75 | fDigitsIndex = new TArrayI(fNDigits); | |
76 | fLeftNeighbour = OneSCluster.fLeftNeighbour; | |
77 | fRightNeighbour = OneSCluster.fRightNeighbour; | |
78 | fTotalSignal =-1; | |
79 | fNTracks = -1; | |
80 | fNCrosses = OneSCluster.fNCrosses; | |
81 | fConsumed = OneSCluster.fConsumed; | |
82 | Int_t i; | |
83 | for (i = 0; i< fNCrosses ; i++){ | |
84 | fCrossedClusterIndexes[i] = OneSCluster.fCrossedClusterIndexes[i]; | |
85 | } | |
86 | for (i = 0; i< fNDigits ; i++){ | |
87 | fDigitsIndex[i]=OneSCluster.fDigitsIndex[i]; | |
88 | } | |
89 | return; | |
90 | } | |
91 | //______________________________________________________________________ | |
92 | AliITSclusterSSD& AliITSclusterSSD::operator=(const AliITSclusterSSD | |
93 | &OneSCluster){ | |
94 | // assignment operator | |
f239b2fe | 95 | |
ee86d557 | 96 | if (this == &OneSCluster) return *this; |
97 | fNDigits = OneSCluster.fNDigits; | |
98 | fSide=OneSCluster.fSide; | |
99 | fDigits=OneSCluster.fDigits; | |
100 | fDigitsIndex = new TArrayI(fNDigits); | |
101 | fLeftNeighbour = OneSCluster.fLeftNeighbour; | |
102 | fRightNeighbour = OneSCluster.fRightNeighbour; | |
103 | fTotalSignal =-1; | |
104 | fNTracks = -1; | |
105 | fNCrosses = OneSCluster.fNCrosses; | |
106 | fConsumed = OneSCluster.fConsumed; | |
107 | Int_t i; | |
108 | for (i = 0; i< fNCrosses ; i++){ | |
109 | fCrossedClusterIndexes[i] = OneSCluster.fCrossedClusterIndexes[i]; | |
110 | } | |
111 | for (i = 0; i< fNDigits ; i++){ | |
112 | fDigitsIndex[i]=OneSCluster.fDigitsIndex[i]; | |
113 | } | |
114 | return *this; | |
115 | } | |
116 | //______________________________________________________________________ | |
117 | Int_t AliITSclusterSSD::SplitCluster(Int_t where, Int_t *outdigits){ | |
118 | //This methods generate data necessery to make new object of this class | |
119 | //I choosen this way, because methods TClonesArray::Add* dont work | |
120 | //so I have to use constraction: new (a[i]) Creator(params...); | |
121 | //where 'a' is a TClonesArray | |
122 | //This method generate params - see AliITSmoduleSSD::SplitCluster; | |
123 | Int_t tmp = fNDigits; | |
124 | Int_t ind = 0; | |
b0f5e3fc | 125 | |
b0f5e3fc | 126 | outdigits[ind++]=(*fDigitsIndex)[where]; |
ee86d557 | 127 | //coping border strip (it is shared by this two clusters) |
128 | for (Int_t i = (where+1); i < tmp; i++) { | |
129 | outdigits[ind++]=(*fDigitsIndex)[i]; | |
130 | //"moving" strips from this to the new one | |
131 | (*fDigitsIndex)[i]=-1; | |
132 | fNDigits--; //deleting strips from this cluster | |
133 | } | |
134 | return ind; | |
b0f5e3fc | 135 | } |
ee86d557 | 136 | //______________________________________________________________________ |
137 | Int_t AliITSclusterSSD::GetDigitStripNo(Int_t digit){ | |
138 | // return strip no of a digit | |
139 | if (digit<0) return -1; | |
140 | return (digit>(fNDigits-1)) ? -1 : | |
141 | ((AliITSdigitSSD*)(fDigits->At((*fDigitsIndex)[digit])))->GetStripNumber(); | |
b0f5e3fc | 142 | } |
ee86d557 | 143 | //______________________________________________________________________ |
144 | Int_t AliITSclusterSSD::GetDigitSignal(Int_t digit){ | |
145 | // returns digit signal | |
146 | Int_t index,signal; | |
147 | if (digit<0||digit>=fNDigits) return -1; | |
148 | index = (*fDigitsIndex)[digit]; | |
149 | signal = ((AliITSdigitSSD*)(fDigits->At(index)))->GetSignal(); | |
150 | /* | |
151 | if(signal>1.e5) printf("GetDigitSignal: digit %d index %d signal %d\n", | |
152 | digit,index, signal); | |
153 | */ | |
154 | return signal; | |
b0f5e3fc | 155 | } |
ee86d557 | 156 | //______________________________________________________________________ |
157 | void AliITSclusterSSD::AddCross(Int_t clIndex){ | |
158 | // add cluster cross to list of cluster crosses | |
766ef0c8 | 159 | |
ee86d557 | 160 | (*fCrossedClusterIndexes)[fNCrosses++] = clIndex; |
b0f5e3fc | 161 | } |
ee86d557 | 162 | //______________________________________________________________________ |
163 | Int_t AliITSclusterSSD::GetCross(Int_t crIndex){ | |
164 | // return crossing cluster | |
b0f5e3fc | 165 | |
ee86d557 | 166 | return ((crIndex>-1)&&(crIndex<fNCrosses))?(*fCrossedClusterIndexes)[crIndex]:-1; |
b0f5e3fc | 167 | } |
ee86d557 | 168 | //______________________________________________________________________ |
169 | Double_t AliITSclusterSSD::CentrOfGravity(){ | |
170 | // return center of gravity of the cluster | |
171 | Float_t ret=0; | |
b0f5e3fc | 172 | |
ee86d557 | 173 | if (fLeftNeighbour) ret+=(GetDigitStripNo(0)*0.5*GetDigitSignal(0)); |
174 | else ret+=(GetDigitStripNo(0)*GetDigitSignal(0)); | |
175 | if (fRightNeighbour) ret+=(GetDigitStripNo(fNDigits -1)*0.5*GetDigitSignal(fNDigits -1)); | |
176 | else ret+=(GetDigitStripNo(fNDigits -1)*GetDigitSignal(fNDigits-1)); | |
177 | for (Int_t i=1;i<fNDigits-1;i++){ | |
178 | ret +=GetDigitStripNo(i)*GetDigitSignal(i); | |
179 | }// end for i | |
b0f5e3fc | 180 | |
ee86d557 | 181 | if (fTotalSignal<0) GetTotalSignal(); |
b0f5e3fc | 182 | |
183 | return (ret/fTotalSignal); | |
184 | } | |
ee86d557 | 185 | //______________________________________________________________________ |
186 | Float_t AliITSclusterSSD::GetTotalSignal(){ | |
187 | // return total signal | |
766ef0c8 | 188 | |
ee86d557 | 189 | if(fTotalSignal <0){ |
190 | fTotalSignal=0; | |
191 | if (fNDigits ==1) { | |
192 | fTotalSignal = (Float_t)GetDigitSignal(0); | |
193 | //printf("1 digit: signal %d \n",GetDigitSignal(0)); | |
194 | return fTotalSignal; | |
195 | } | |
196 | if (fLeftNeighbour) fTotalSignal += (Float_t)(0.5*GetDigitSignal(0)); | |
197 | else fTotalSignal += (Float_t) GetDigitSignal(0); | |
198 | //printf("GetTotalSignal :i DigitSignal %d %d \n",0,GetDigitSignal(0)); | |
199 | if (fRightNeighbour) fTotalSignal += (Float_t)(0.5*GetDigitSignal( | |
200 | fNDigits -1)); | |
b0f5e3fc | 201 | else fTotalSignal += (Float_t)GetDigitSignal(fNDigits-1); |
ee86d557 | 202 | //printf("GetTotalSignal :i DigitSignal %d %d \n",fNDigits -1,GetDigitSignal(fNDigits -1)); |
203 | for (Int_t i = 1;i<fNDigits -1;i++){ | |
204 | fTotalSignal += (Float_t)GetDigitSignal(i); | |
205 | //printf("GetTotalSignal :i DigitSignal %d %d \n",i,GetDigitSignal(i)); | |
b0f5e3fc | 206 | } |
ee86d557 | 207 | //printf("GetTotalSignal: fNDigits %d fTotalSignal %.0f \n",fNDigits,fTotalSignal); |
b0f5e3fc | 208 | } |
ee86d557 | 209 | return fTotalSignal; |
b0f5e3fc | 210 | } |
ee86d557 | 211 | //______________________________________________________________________ |
212 | Float_t AliITSclusterSSD::GetTotalSignalError(){ | |
213 | // return the error on the signal | |
214 | Float_t err =0; | |
215 | for (Int_t i =1; i<fNDigits -1; i++){ | |
216 | err+=0.1*GetDigitSignal(i); | |
b0f5e3fc | 217 | } |
ee86d557 | 218 | if (GetLeftNeighbour()){ |
219 | err+=GetDigitSignal(0); | |
220 | }else{ | |
221 | err+=0.1*GetDigitSignal(0); | |
222 | } | |
223 | if (GetRightNeighbour()){ | |
224 | err+=GetDigitSignal(fNDigits -1); | |
225 | }else{ | |
226 | err+=0.1*GetDigitSignal(fNDigits -1); | |
227 | } | |
228 | return err; | |
b0f5e3fc | 229 | } |
ee86d557 | 230 | //______________________________________________________________________ |
231 | void AliITSclusterSSD::DelCross(Int_t index){ | |
232 | // remove cross clusters from the list of cross clusters | |
233 | Int_t i,j; //iterators | |
b0f5e3fc | 234 | |
ee86d557 | 235 | for (i =0;i<fNCrosses;i++){ |
236 | if ((*fCrossedClusterIndexes)[i] == index){ | |
237 | for (j=i;j<fNCrosses-1;j++){ | |
238 | (*fCrossedClusterIndexes)[j]=(*fCrossedClusterIndexes)[j+1]; | |
239 | } | |
240 | fNCrosses--; | |
241 | return; | |
242 | } | |
243 | } | |
b0f5e3fc | 244 | } |
ee86d557 | 245 | //______________________________________________________________________ |
246 | Int_t *AliITSclusterSSD::GetTracks(Int_t &nt){ | |
247 | // return the track number of the cluster | |
f8d9a5b8 | 248 | Int_t ntrk = GetDigit(0)->GetNTracks(); |
249 | Int_t ndig = GetNumOfDigits(); | |
250 | Int_t *idig = new Int_t[ndig]; | |
251 | Int_t *sdig = new Int_t[ndig]; | |
252 | Int_t *itrk = new Int_t[ndig*ntrk]; | |
253 | Int_t i,j,k,l,trk; | |
254 | Bool_t b; | |
255 | ||
256 | for(i=0;i<ndig;i++){idig[i] = i;sdig[i] = GetDigit(i)->GetSignal();} | |
257 | TMath::Sort(ndig,sdig,idig,kTRUE); | |
258 | for(i=0;i<ndig*ntrk;i++) itrk[i] = -3; | |
259 | j = k = l = 0; | |
260 | for(i=0;i<ndig;i++){ // fill itrk with track numbers in order of digit size | |
261 | j = idig[i]; | |
262 | for(k=0;k<ntrk;k++) if((trk = GetDigit(j)->GetTrack(k))>=0) { | |
263 | itrk[l] = trk; | |
264 | l++; | |
265 | } // end for k/if | |
266 | } // end for i | |
267 | for(i=0;i<10;i++) fTrack[i] = -3; | |
268 | fTrack[0] = itrk[0]; // first element | |
269 | k = 1; | |
270 | b = kTRUE; | |
271 | for(i=1;i<l;i++){ | |
272 | for(j=0;j<k;j++) if(fTrack[j]==itrk[i]) b = kFALSE; | |
273 | if(b){fTrack[k] = itrk[i]; k++;} | |
274 | if(k>9) break; | |
275 | } // end for i | |
276 | nt = k; | |
277 | ||
278 | delete[] idig; | |
279 | delete[] sdig; | |
280 | delete[] itrk; | |
281 | ||
282 | return fTrack; | |
283 | /* | |
ee86d557 | 284 | Int_t *tidx=0; |
285 | Int_t i, j,n; | |
286 | Int_t bit =0; | |
287 | Int_t ntracks=0; | |
288 | nt=0; | |
b0f5e3fc | 289 | |
ee86d557 | 290 | for (i=0;i<10;i++) fTrack[i] = -3; |
b0f5e3fc | 291 | |
ee86d557 | 292 | //cout<<"GetTrack start -------: fNDigits ="<<fNDigits<<endl; |
b0f5e3fc | 293 | |
ee86d557 | 294 | for (i = 0; i<fNDigits; i++) { |
295 | tidx = GetDigit(i)->GetTracks(); | |
296 | n = GetDigit(i)->GetNTracks(); | |
297 | for (j = 0; j<n && j<10;j++) { | |
298 | if (tidx[j] >= 0) { | |
299 | if(ntracks == 0){ | |
300 | fTrack[ntracks] = tidx[j]; | |
301 | ntracks++; | |
302 | }else if(tidx[j] != fTrack[ntracks-1]){ | |
303 | ntracks++; | |
304 | if(ntracks > 9) { | |
305 | bit = 1; | |
306 | break; | |
307 | } // end if ntracks > 9 | |
308 | fTrack[ntracks-1] = tidx[j]; | |
309 | } // end if ntracke == 0 | |
310 | } // end if tidx[j] >=0 | |
311 | } // 3-tracks loop for the digit | |
312 | if(bit == 1) break; | |
313 | } // digit loop | |
f239b2fe | 314 | |
ee86d557 | 315 | SetNTracks(ntracks); |
316 | nt = ntracks; | |
317 | return &(fTrack[0]); | |
f8d9a5b8 | 318 | */ |
b0f5e3fc | 319 | } |
ee86d557 | 320 | //______________________________________________________________________ |
321 | Double_t AliITSclusterSSD::GetPosition(){ | |
322 | // return position of the cluster | |
323 | Float_t ret; | |
b0f5e3fc | 324 | |
ee86d557 | 325 | switch(fNDigits){ |
326 | case 1: | |
327 | ret = GetDigitStripNo(0); | |
328 | break; | |
329 | case 2: | |
330 | ret = EtaAlgorithm(); | |
331 | break; | |
332 | default: | |
333 | ret = CentrOfGravity(); | |
334 | } | |
335 | return ret; | |
b0f5e3fc | 336 | } |
ee86d557 | 337 | //______________________________________________________________________ |
338 | Double_t AliITSclusterSSD::EtaAlgorithm(){ | |
339 | // algorithm for determing cluster position | |
340 | if (fNDigits != 2) return -1; | |
b0f5e3fc | 341 | |
ee86d557 | 342 | Int_t strip1 = GetDigit(0)->GetStripNumber(); |
343 | Int_t strip2 = GetDigit(1)->GetStripNumber(); | |
344 | Int_t signal1 = GetDigit(0)->GetSignal(); | |
345 | Int_t signal2 = GetDigit(1)->GetSignal(); | |
b0f5e3fc | 346 | |
ee86d557 | 347 | Double_t eta; |
b0f5e3fc | 348 | |
349 | ||
ee86d557 | 350 | if (strip1<strip2){ |
351 | eta = ((Double_t)signal2)/((Double_t)(signal1+signal2)); | |
352 | if (eta<0.04) return strip1; | |
353 | if (eta>0.96) return strip2; | |
354 | return (strip1 + 0.43478261*eta + 0.2826087); | |
355 | } else{ | |
356 | eta = ((Double_t)signal1)/((Double_t)(signal1+signal2)); | |
357 | if (eta<0.04) return strip2; | |
358 | if (eta>0.96) return strip1; | |
359 | return (strip2 + 0.43478261*eta + 0.2826087); | |
360 | } | |
b0f5e3fc | 361 | } |
ee86d557 | 362 | //______________________________________________________________________ |
363 | Double_t AliITSclusterSSD::GetPositionError(){ | |
364 | // return the position error | |
365 | return (GetNumOfDigits()+1)/2; | |
b0f5e3fc | 366 | } |
ee86d557 | 367 | //______________________________________________________________________ |
368 | Bool_t AliITSclusterSSD::IsCrossingWith(Int_t idx){ | |
369 | // return the cluster to which he crosses | |
b0f5e3fc | 370 | |
ee86d557 | 371 | for (Int_t i =0; i< fNCrosses;i++){ |
372 | if (GetCross(i) == idx) return kTRUE; | |
373 | } | |
374 | return kFALSE; | |
b0f5e3fc | 375 | } |