3 #include "AliITSdigit.h"
4 #include "AliITSclusterSSD.h"
6 ClassImp(AliITSclusterSSD)
8 AliITSclusterSSD::AliITSclusterSSD()
10 // default constructor
18 fLeftNeighbour = kFALSE;
19 fRightNeighbour = kFALSE;
20 fCrossedClusterIndexes = new TArrayI(300);
24 /*************************************************************************/
26 AliITSclusterSSD::AliITSclusterSSD
27 (Int_t ndigits, Int_t *DigitIndexes,
28 TObjArray *Digits, Bool_t side)
30 // comment to be written
34 fDigitsIndex = new TArrayI(fNDigits,DigitIndexes );
36 fCrossedClusterIndexes = new TArrayI(300);
37 fLeftNeighbour = kFALSE;
38 fRightNeighbour = kFALSE;
43 /*************************************************************************/
44 AliITSclusterSSD::~AliITSclusterSSD()
48 delete fCrossedClusterIndexes;
51 /*************************************************************************/
52 AliITSclusterSSD::AliITSclusterSSD(const AliITSclusterSSD &OneSCluster)
55 if (this == &OneSCluster) return;
56 fNDigits = OneSCluster.fNDigits;
57 fSide=OneSCluster.fSide;
58 fDigits=OneSCluster.fDigits;
59 fDigitsIndex = new TArrayI(fNDigits);
60 fLeftNeighbour = OneSCluster.fLeftNeighbour;
61 fRightNeighbour = OneSCluster.fRightNeighbour;
64 fNCrosses = OneSCluster.fNCrosses;
65 fConsumed = OneSCluster.fConsumed;
67 for (i = 0; i< fNCrosses ; i++)
69 fCrossedClusterIndexes[i] = OneSCluster.fCrossedClusterIndexes[i];
71 for (i = 0; i< fNDigits ; i++)
73 fDigitsIndex[i]=OneSCluster.fDigitsIndex[i];
78 /*************************************************************************/
79 AliITSclusterSSD& AliITSclusterSSD::operator=(const AliITSclusterSSD & OneSCluster)
81 // assignment operator
82 if (this == &OneSCluster) return *this;
83 fNDigits = OneSCluster.fNDigits;
84 fSide=OneSCluster.fSide;
85 fDigits=OneSCluster.fDigits;
86 fDigitsIndex = new TArrayI(fNDigits);
87 fLeftNeighbour = OneSCluster.fLeftNeighbour;
88 fRightNeighbour = OneSCluster.fRightNeighbour;
91 fNCrosses = OneSCluster.fNCrosses;
92 fConsumed = OneSCluster.fConsumed;
94 for (i = 0; i< fNCrosses ; i++)
96 fCrossedClusterIndexes[i] = OneSCluster.fCrossedClusterIndexes[i];
98 for (i = 0; i< fNDigits ; i++)
100 fDigitsIndex[i]=OneSCluster.fDigitsIndex[i];
105 /*************************************************************************/
106 Int_t AliITSclusterSSD::SplitCluster(Int_t where, Int_t *outdigits)
108 //This methods generate data necessery to make new object of this class
109 //I choosen this way, because methods TClonesArray::Add* dont work
110 //so I have to use constraction: new (a[i]) Creator(params...);
111 //where 'a' is a TClonesArray
112 //This method generate params - see AliITSmoduleSSD::SplitCluster;
115 Int_t tmp = fNDigits;
117 outdigits[ind++]=(*fDigitsIndex)[where];
118 //coping border strip (it is shared by this two clusters)
119 for (Int_t 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 (Int_t 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 (Int_t 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
222 for (Int_t i =1; i<fNDigits -1; i++)
224 err+=0.1*GetDigitSignal(i);
226 if (GetLeftNeighbour())
228 err+=GetDigitSignal(0);
232 err+=0.1*GetDigitSignal(0);
234 if (GetRightNeighbour())
236 err+=GetDigitSignal(fNDigits -1);
240 err+=0.1*GetDigitSignal(fNDigits -1);
246 /***********************************************************/
248 void AliITSclusterSSD::DelCross(Int_t index)
250 // comment to be written
251 Int_t i,j; //iterators
253 for (i =0;i<fNCrosses;i++)
255 if ((*fCrossedClusterIndexes)[i] == index)
257 for (j=i;j<fNCrosses-1;j++)
259 (*fCrossedClusterIndexes)[j]=(*fCrossedClusterIndexes)[j+1];
267 /***********************************************************/
269 Int_t *AliITSclusterSSD::GetTracks(Int_t &nt)
271 // comment to be written
284 tidx=GetDigit(0)->GetTracks();
289 if (fTrack[i] != 0) fNTrack++;
291 for (i = 1; i<fNDigits; i++)
293 tidx=GetDigit(i)->GetTracks();
294 for (Int_t j = 0; j<3;j++)
297 if (tidx[j]==0) break;
298 for (Int_t k = 0; k < fNTrack;k++)
300 if (tidx[j]==fTrack[k]) bit =0;
302 if (bit) fTrack[fNTrack++]=tidx[j];
309 cout<<"\n\n Error AliITSclusterSSD::GetTracks OUT "<<fNDigits<<" "<<fNTrack<<"\n\n\n\n\n";
318 /***********************************************************/
320 Double_t AliITSclusterSSD::GetPosition()
322 // comment to be written
327 ret = GetDigitStripNo(0);
330 ret = EtaAlgorithm();
333 ret = CentrOfGravity();
338 /***********************************************************/
340 Double_t AliITSclusterSSD::EtaAlgorithm()
342 // comment to be written
343 if (fNDigits != 2) return -1;
345 Int_t strip1 = GetDigit(0)->GetStripNumber();
346 Int_t strip2 = GetDigit(1)->GetStripNumber();
347 Int_t signal1 = GetDigit(0)->GetSignal();
348 Int_t signal2 = GetDigit(1)->GetSignal();
355 eta = ((Double_t)signal2)/((Double_t)(signal1+signal2));
356 if (eta<0.04) return strip1;
357 if (eta>0.96) return strip2;
358 return (strip1 + 0.43478261*eta + 0.2826087);
362 eta = ((Double_t)signal1)/((Double_t)(signal1+signal2));
363 if (eta<0.04) return strip2;
364 if (eta>0.96) return strip1;
365 return (strip2 + 0.43478261*eta + 0.2826087);
371 Double_t AliITSclusterSSD::GetPositionError()
373 // comment to be written
374 return (GetNumOfDigits()+1)/2;
377 Bool_t AliITSclusterSSD::IsCrossingWith(Int_t idx)
379 // comment to be written
380 for (Int_t i =0; i< fNCrosses;i++)
382 if (GetCross(i) == idx) return kTRUE;