3 #include "AliITSclusterSSD.h"
5 ClassImp(AliITSclusterSSD)
7 AliITSclusterSSD::AliITSclusterSSD()
17 fLeftNeighbour = kFALSE;
18 fRightNeighbour = kFALSE;
19 fCrossedClusterIndexes = new TArrayI(300);
23 /*************************************************************************/
25 AliITSclusterSSD::AliITSclusterSSD
26 (Int_t ndigits, Int_t *DigitIndexes,
27 TObjArray *Digits, Bool_t side)
29 // comment to be written
33 fDigitsIndex = new TArrayI(fNDigits,DigitIndexes );
35 fCrossedClusterIndexes = new TArrayI(300);
36 fLeftNeighbour = kFALSE;
37 fRightNeighbour = kFALSE;
42 /*************************************************************************/
43 AliITSclusterSSD::~AliITSclusterSSD()
47 delete fCrossedClusterIndexes;
50 /*************************************************************************/
51 AliITSclusterSSD::AliITSclusterSSD(const AliITSclusterSSD &OneSCluster)
54 if (this == &OneSCluster) return;
55 fNDigits = OneSCluster.fNDigits;
56 fSide=OneSCluster.fSide;
57 fDigits=OneSCluster.fDigits;
58 fDigitsIndex = new TArrayI(fNDigits);
59 fLeftNeighbour = OneSCluster.fLeftNeighbour;
60 fRightNeighbour = OneSCluster.fRightNeighbour;
63 fNCrosses = OneSCluster.fNCrosses;
64 fConsumed = OneSCluster.fConsumed;
66 for(i = 0; i< fNCrosses ; i++)
68 fCrossedClusterIndexes[i] = OneSCluster.fCrossedClusterIndexes[i];
70 for(i = 0; i< fNDigits ; i++)
72 fDigitsIndex[i]=OneSCluster.fDigitsIndex[i];
77 /*************************************************************************/
78 AliITSclusterSSD& AliITSclusterSSD::operator=(const AliITSclusterSSD & OneSCluster)
80 // assignment operator
81 if (this == &OneSCluster) return *this;
82 fNDigits = OneSCluster.fNDigits;
83 fSide=OneSCluster.fSide;
84 fDigits=OneSCluster.fDigits;
85 fDigitsIndex = new TArrayI(fNDigits);
86 fLeftNeighbour = OneSCluster.fLeftNeighbour;
87 fRightNeighbour = OneSCluster.fRightNeighbour;
90 fNCrosses = OneSCluster.fNCrosses;
91 fConsumed = OneSCluster.fConsumed;
93 for(i = 0; i< fNCrosses ; i++)
95 fCrossedClusterIndexes[i] = OneSCluster.fCrossedClusterIndexes[i];
97 for(i = 0; i< fNDigits ; i++)
99 fDigitsIndex[i]=OneSCluster.fDigitsIndex[i];
104 /*************************************************************************/
105 Int_t AliITSclusterSSD::SplitCluster(Int_t where, Int_t *outdigits)
107 //This methods generate data necessery to make new object of this class
108 //I choosen this way, because methods TClonesArray::Add* dont work
109 //so I have to use constraction: new (a[i]) Creator(params...);
110 //where 'a' is a TClonesArray
111 //This method generate params - see AliITSmoduleSSD::SplitCluster;
114 Int_t tmp = fNDigits;
116 outdigits[ind++]=(*fDigitsIndex)[where];
117 //coping border strip (it is shared by this two clusters)
119 for(i = (where+1); i < tmp; i++)
121 outdigits[ind++]=(*fDigitsIndex)[i]; //"moving" strips from this to the new one
122 (*fDigitsIndex)[i]=-1;
123 fNDigits--; //deleting strips from this cluster
128 /*******************************************************************/
129 Int_t AliITSclusterSSD::GetDigitStripNo(Int_t digit)
131 // comment to be written
132 if (digit<0) return -1;
133 return (digit>(fNDigits-1))?-1 :
134 ((AliITSdigitSSD*)((*fDigits)[(*fDigitsIndex)[digit]]))->GetStripNumber();
136 /************************************************************/
137 Int_t AliITSclusterSSD::GetDigitSignal(Int_t digit)
140 // returns digit signal
141 if (digit<0||digit>=fNDigits) return -1;
142 index = (*fDigitsIndex)[digit];
143 signal = ((AliITSdigitSSD*)((*fDigits)[index]))->GetSignal();
145 if(signal>1.e5) printf("GetDigitSignal: digit %d index %d signal %d\n",
146 digit,index, signal);
151 /***********************************************************/
152 void AliITSclusterSSD::AddCross(Int_t clIndex)
154 // comment to be written
155 (*fCrossedClusterIndexes)[fNCrosses++] = clIndex;
157 /***********************************************************/
159 Int_t AliITSclusterSSD::GetCross(Int_t crIndex)
161 // comment to be written
162 return ((crIndex>-1)&&(crIndex<fNCrosses))?(*fCrossedClusterIndexes)[crIndex]:-1;
164 /***********************************************************/
165 Double_t AliITSclusterSSD::CentrOfGravity()
167 // comment to be written
170 if (fLeftNeighbour) ret+=(GetDigitStripNo(0)*0.5*GetDigitSignal(0));
171 else ret+=(GetDigitStripNo(0)*GetDigitSignal(0));
173 if (fRightNeighbour) ret+=(GetDigitStripNo(fNDigits -1)*0.5*GetDigitSignal(fNDigits -1));
174 else ret+=(GetDigitStripNo(fNDigits -1)*GetDigitSignal(fNDigits-1));
176 for(i=1;i<fNDigits-1;i++)
178 ret +=GetDigitStripNo(i)*GetDigitSignal(i);
181 if (fTotalSignal<0) GetTotalSignal();
183 return (ret/fTotalSignal);
186 /***********************************************************/
187 Float_t AliITSclusterSSD::GetTotalSignal()
189 // comment to be written
194 fTotalSignal = (Float_t)GetDigitSignal(0);
195 //printf("1 digit: signal %d \n",GetDigitSignal(0));
199 if (fLeftNeighbour) fTotalSignal += (Float_t)(0.5*GetDigitSignal(0));
200 else fTotalSignal += (Float_t) GetDigitSignal(0);
201 //printf("GetTotalSignal :i DigitSignal %d %d \n",0,GetDigitSignal(0));
203 if (fRightNeighbour) fTotalSignal += (Float_t)(0.5*GetDigitSignal(fNDigits -1));
204 else fTotalSignal += (Float_t)GetDigitSignal(fNDigits-1);
205 //printf("GetTotalSignal :i DigitSignal %d %d \n",fNDigits -1,GetDigitSignal(fNDigits -1));
207 for(i = 1;i<fNDigits -1;i++)
209 fTotalSignal += (Float_t)GetDigitSignal(i);
210 //printf("GetTotalSignal :i DigitSignal %d %d \n",i,GetDigitSignal(i));
212 //printf("GetTotalSignal: fNDigits %d fTotalSignal %.0f \n",fNDigits,fTotalSignal);
216 /***********************************************************/
218 Float_t AliITSclusterSSD::GetTotalSignalError()
220 // comment to be written
223 for(i =1; i<fNDigits -1; i++)
225 err+=0.1*GetDigitSignal(i);
227 if (GetLeftNeighbour())
229 err+=GetDigitSignal(0);
233 err+=0.1*GetDigitSignal(0);
235 if (GetRightNeighbour())
237 err+=GetDigitSignal(fNDigits -1);
241 err+=0.1*GetDigitSignal(fNDigits -1);
247 /***********************************************************/
249 void AliITSclusterSSD::DelCross(Int_t index)
251 // comment to be written
252 Int_t i,j; //iterators
254 for(i =0;i<fNCrosses;i++)
256 if ((*fCrossedClusterIndexes)[i] == index)
258 for(j=i;j<fNCrosses-1;j++)
260 (*fCrossedClusterIndexes)[j]=(*fCrossedClusterIndexes)[j+1];
268 /***********************************************************/
270 Int_t *AliITSclusterSSD::GetTracks(Int_t &nt)
272 // comment to be written
285 tidx=GetDigit(0)->GetTracks();
290 if (fTrack[i] != 0) fNTrack++;
292 for(i = 1; i<fNDigits; i++)
294 tidx=GetDigit(i)->GetTracks();
299 if (tidx[j]==0) break;
301 for(k = 0; k < fNTrack;k++)
303 if (tidx[j]==fTrack[k]) bit =0;
305 if (bit) fTrack[fNTrack++]=tidx[j];
312 cout<<"\n\n Error AliITSclusterSSD::GetTracks OUT "<<fNDigits<<" "<<fNTrack<<"\n\n\n\n\n";
321 /***********************************************************/
323 Double_t AliITSclusterSSD::GetPosition()
325 // comment to be written
330 ret = GetDigitStripNo(0);
333 ret = EtaAlgorithm();
336 ret = CentrOfGravity();
341 /***********************************************************/
343 Double_t AliITSclusterSSD::EtaAlgorithm()
345 // comment to be written
346 if (fNDigits != 2) return -1;
348 Int_t strip1 = GetDigit(0)->GetStripNumber();
349 Int_t strip2 = GetDigit(1)->GetStripNumber();
350 Int_t signal1 = GetDigit(0)->GetSignal();
351 Int_t signal2 = GetDigit(1)->GetSignal();
358 eta = ((Double_t)signal2)/((Double_t)(signal1+signal2));
359 if (eta<0.04) return strip1;
360 if (eta>0.96) return strip2;
361 return (strip1 + 0.43478261*eta + 0.2826087);
365 eta = ((Double_t)signal1)/((Double_t)(signal1+signal2));
366 if (eta<0.04) return strip2;
367 if (eta>0.96) return strip1;
368 return (strip2 + 0.43478261*eta + 0.2826087);
374 Double_t AliITSclusterSSD::GetPositionError()
376 // comment to be written
377 return (GetNumOfDigits()+1)/2;
380 Bool_t AliITSclusterSSD::IsCrossingWith(Int_t idx)
382 // comment to be written
384 for(i =0; i< fNCrosses;i++)
386 if (GetCross(i) == idx) return kTRUE;