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d3da6dc4 | 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 | ||
9ecfba5d | 16 | #include "AliHMPIDCluster.h" //class header |
76fd1a96 | 17 | #include <TVirtualFitter.h> //Solve() |
d3da6dc4 | 18 | #include <TMinuit.h> //Solve() |
19 | #include <TClonesArray.h> //Solve() | |
d1bf51e1 | 20 | #include <TMarker.h> //Draw() |
27311693 | 21 | |
9ecfba5d | 22 | #include "AliLog.h" //FindCusterSize() |
76fd1a96 | 23 | |
69ed32de | 24 | Bool_t AliHMPIDCluster::fgDoCorrSin=kTRUE; |
27311693 | 25 | |
d3da6dc4 | 26 | ClassImp(AliHMPIDCluster) |
76fd1a96 | 27 | |
55a829a5 | 28 | |
29 | void AliHMPIDCluster::SetClusterParams(Double_t xL,Double_t yL,Int_t iCh ) | |
30 | { | |
31 | //------------------------------------------------------------------------ | |
32 | //Set the cluster properties for the AliCluster3D part | |
33 | //------------------------------------------------------------------------ | |
34 | ||
35 | //Get the volume ID from the previously set PNEntry | |
36 | UShort_t volId=AliGeomManager::LayerToVolUID(AliGeomManager::kHMPID,iCh); | |
37 | ||
38 | ||
39 | //get L->T cs matrix for a given chamber | |
40 | const TGeoHMatrix *t2l= AliGeomManager::GetTracking2LocalMatrix(volId); | |
41 | ||
b38ac33a | 42 | if(fParam->GetInstType()) //if there is no geometry we cannot retrieve the volId (only for monitoring) |
b87365d5 | 43 | { |
44 | new(this) AliCluster3D(); return; | |
45 | } | |
55a829a5 | 46 | |
47 | ||
48 | //transformation from the pad cs to local | |
b38ac33a | 49 | xL -= 0.5*fParam->SizeAllX(); //size of all pads with dead zones included |
50 | yL -= 0.5*fParam->SizeAllY(); | |
55a829a5 | 51 | |
52 | // Get the position in the tracking cs | |
53 | Double_t posL[3]={xL, yL, 0.}; //this is the LORS of HMPID | |
54 | Double_t posT[3]; | |
55 | t2l->MasterToLocal(posL,posT); | |
56 | ||
57 | //Get the cluster covariance matrix in the tracking cs | |
58 | Double_t covL[9] = { | |
59 | 0.8*0.8/12., 0., 0.0, //pad size X | |
60 | 0., 0.84*0.84/12., 0.0, //pad size Y | |
61 | 0., 0., 0.1, //just 1 , no Z dimension ??? | |
62 | }; | |
63 | ||
64 | TGeoHMatrix m; | |
65 | m.SetRotation(covL); | |
66 | m.Multiply(t2l); | |
67 | m.MultiplyLeft(&t2l->Inverse()); | |
68 | Double_t *covT = m.GetRotationMatrix(); | |
69 | ||
70 | new(this) AliCluster3D(volId, // Can be done safer | |
71 | posT[0],posT[1],posT[2], | |
72 | covT[0],covT[1],covT[2], | |
73 | covT[4],covT[5], | |
74 | covT[8], | |
75 | 0x0); // No MC labels ? | |
76 | } | |
77 | ||
78 | ||
79 | AliHMPIDCluster::~AliHMPIDCluster(){ | |
80 | if(fDigs) delete fDigs; fDigs=0; | |
81 | } | |
82 | ||
d3da6dc4 | 83 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
84 | void AliHMPIDCluster::CoG() | |
85 | { | |
86 | // Calculates naive cluster position as a center of gravity of its digits. | |
87 | // Arguments: none | |
d1bf51e1 | 88 | // Returns: none |
e4a3eae8 | 89 | Int_t minPadX=999,minPadY=999,maxPadX=-1,maxPadY=-1; //for box finding |
90 | if(fDigs==0) return; //no digits in this cluster | |
894758d4 | 91 | fXX=fYY=fQRaw=0; //init summable parameters |
e4a3eae8 | 92 | Int_t maxQpad=-1,maxQ=-1; //to calculate the pad with the highest charge |
aa85549f | 93 | AliHMPIDDigit *pDig=0x0; |
e4a3eae8 | 94 | for(Int_t iDig=0;iDig<fDigs->GetEntriesFast();iDig++){ //digits loop |
95 | pDig=(AliHMPIDDigit*)fDigs->At(iDig); //get pointer to next digit | |
96 | ||
97 | if(pDig->PadPcX() > maxPadX) maxPadX = pDig->PadPcX(); // find the minimum box that contain the cluster MaxX | |
98 | if(pDig->PadPcY() > maxPadY) maxPadY = pDig->PadPcY(); // MaxY | |
99 | if(pDig->PadPcX() < minPadX) minPadX = pDig->PadPcX(); // MinX | |
100 | if(pDig->PadPcY() < minPadY) minPadY = pDig->PadPcY(); // MinY | |
101 | ||
102 | Float_t q=pDig->Q(); //get QDC | |
894758d4 | 103 | fXX += pDig->LorsX()*q;fYY +=pDig->LorsY()*q; //add digit center weighted by QDC |
e4a3eae8 | 104 | fQRaw+=q; //increment total charge |
105 | if(q>maxQ) {maxQpad = pDig->Pad();maxQ=(Int_t)q;} // to find pad with highest charge | |
d3da6dc4 | 106 | }//digits loop |
e4a3eae8 | 107 | |
108 | fBox=(maxPadX-minPadX+1)*100+maxPadY-minPadY+1; // dimension of the box: format Xdim*100+Ydim | |
109 | ||
3a94c321 | 110 | if ( fQRaw != 0 ) {fXX/=fQRaw;fYY/=fQRaw;} //final center of gravity |
27311693 | 111 | |
69ed32de | 112 | if(fDigs->GetEntriesFast()>1&&fgDoCorrSin)CorrSin(); //correct it by sinoid |
e4a3eae8 | 113 | |
c5c19d6a | 114 | fQ = fQRaw; // Before starting fit procedure, Q and QRaw must be equal |
115 | fCh=pDig->Ch(); //initialize chamber number | |
116 | fMaxQpad = maxQpad; fMaxQ=maxQ; //store max charge pad to the field | |
117 | fChi2=0; // no Chi2 to find | |
118 | fNlocMax=0; // proper status from this method | |
d3da6dc4 | 119 | fSt=kCoG; |
55a829a5 | 120 | |
b38ac33a | 121 | if(fParam->GetInstType()) SetClusterParams(fXX,fYY,fCh); //need to fill the AliCluster3D part |
55a829a5 | 122 | |
d3da6dc4 | 123 | }//CoG() |
124 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ | |
125 | void AliHMPIDCluster::CorrSin() | |
126 | { | |
127 | // Correction of cluster x position due to sinoid, see HMPID TDR page 30 | |
128 | // Arguments: none | |
129 | // Returns: none | |
1d4857c5 | 130 | Int_t pc,px,py; |
b38ac33a | 131 | fParam->Lors2Pad(fXX,fYY,pc,px,py); //tmp digit to get it center |
132 | Float_t x=fXX-fParam->LorsX(pc,px); //diff between cluster x and center of the pad contaning this cluster | |
894758d4 | 133 | fXX+=3.31267e-2*TMath::Sin(2*TMath::Pi()/0.8*x)-2.66575e-3*TMath::Sin(4*TMath::Pi()/0.8*x)+2.80553e-3*TMath::Sin(6*TMath::Pi()/0.8*x)+0.0070; |
d3da6dc4 | 134 | } |
135 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ | |
d1bf51e1 | 136 | void AliHMPIDCluster::Draw(Option_t*) |
137 | { | |
a1d55ff3 | 138 | TMarker *pMark=new TMarker(X(),Y(),5); pMark->SetUniqueID(fSt);pMark->SetMarkerColor(kBlue); pMark->Draw(); |
d1bf51e1 | 139 | } |
140 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ | |
557ca324 | 141 | void AliHMPIDCluster::FitFunc(Int_t &iNpars, Double_t* deriv, Double_t &chi2, Double_t *par, Int_t iflag) |
d3da6dc4 | 142 | { |
143 | // Cluster fit function | |
144 | // par[0]=x par[1]=y par[2]=q for the first Mathieson shape | |
145 | // par[3]=x par[4]=y par[5]=q for the second Mathieson shape and so on up to iNpars/3 Mathieson shapes | |
76fd1a96 | 146 | // For each pad of the cluster calculates the difference between actual pad charge and the charge induced to this pad by all Mathieson distributions |
d3da6dc4 | 147 | // Then the chi2 is calculated as the sum of this value squared for all pad in the cluster. |
148 | // Arguments: iNpars - number of parameters which is number of local maxima of cluster * 3 | |
149 | // chi2 - function result to be minimised | |
150 | // par - parameters array of size iNpars | |
151 | // Returns: none | |
76fd1a96 | 152 | |
153 | AliHMPIDCluster *pClu=(AliHMPIDCluster*)TVirtualFitter::GetFitter()->GetObjectFit(); | |
154 | ||
155 | Int_t nPads = pClu->Size(); | |
76fd1a96 | 156 | |
d3da6dc4 | 157 | chi2 = 0; |
76fd1a96 | 158 | |
159 | Int_t iNshape = iNpars/3; | |
160 | ||
76fd1a96 | 161 | for(Int_t i=0;i<nPads;i++){ //loop on all pads of the cluster |
162 | Double_t dQpadMath = 0; | |
163 | for(Int_t j=0;j<iNshape;j++){ //Mathiesons loop as all of them may contribute to this pad | |
164 | Double_t fracMathi = pClu->Dig(i)->IntMathieson(par[3*j],par[3*j+1]); | |
165 | dQpadMath+=par[3*j+2]*fracMathi; // par[3*j+2] is charge par[3*j] is x par[3*j+1] is y of current Mathieson | |
76fd1a96 | 166 | } |
167 | if(dQpadMath>0 && pClu->Dig(i)->Q()>0) { | |
168 | chi2 +=TMath::Power((pClu->Dig(i)->Q()-dQpadMath),2)/pClu->Dig(i)->Q(); //chi2 function to be minimized | |
169 | } | |
170 | } | |
557ca324 | 171 | //---calculate gradients... |
172 | if(iflag==2) { | |
173 | Double_t **derivPart; | |
174 | ||
175 | derivPart = new Double_t*[iNpars]; | |
176 | ||
177 | for(Int_t j=0;j<iNpars;j++){ | |
178 | deriv[j] = 0; | |
179 | derivPart[j] = new Double_t[nPads]; | |
180 | for(Int_t i=0;i<nPads;i++){ | |
181 | derivPart[j][i] = 0; | |
182 | } | |
183 | } | |
184 | ||
185 | for(Int_t i=0;i<nPads;i++){ //loop on all pads of the cluster | |
186 | for(Int_t j=0;j<iNshape;j++){ //Mathiesons loop as all of them may contribute to this pad | |
187 | Double_t fracMathi = pClu->Dig(i)->IntMathieson(par[3*j],par[3*j+1]); | |
c770ceb9 | 188 | derivPart[3*j ][i] += par[3*j+2]*(pClu->Dig(i)->MathiesonX(par[3*j]-pClu->Dig(i)->LorsX()-0.5*AliHMPIDParam::SizePadX())- |
189 | pClu->Dig(i)->MathiesonX(par[3*j]-pClu->Dig(i)->LorsX()+0.5*AliHMPIDParam::SizePadX()))* | |
190 | pClu->Dig(i)->IntPartMathiY(par[3*j+1]); | |
191 | derivPart[3*j+1][i] += par[3*j+2]*(pClu->Dig(i)->MathiesonY(par[3*j+1]-pClu->Dig(i)->LorsY()-0.5*AliHMPIDParam::SizePadY())- | |
192 | pClu->Dig(i)->MathiesonY(par[3*j+1]-pClu->Dig(i)->LorsY()+0.5*AliHMPIDParam::SizePadY()))* | |
193 | pClu->Dig(i)->IntPartMathiX(par[3*j]); | |
557ca324 | 194 | derivPart[3*j+2][i] += fracMathi; |
195 | } | |
196 | } | |
197 | //loop on all pads of the cluster | |
198 | for(Int_t i=0;i<nPads;i++){ //loop on all pads of the cluster | |
199 | Double_t dQpadMath = 0; //pad charge collector | |
200 | for(Int_t j=0;j<iNshape;j++){ //Mathiesons loop as all of them may contribute to this pad | |
201 | Double_t fracMathi = pClu->Dig(i)->IntMathieson(par[3*j],par[3*j+1]); | |
202 | dQpadMath+=par[3*j+2]*fracMathi; | |
203 | if(dQpadMath>0 && pClu->Dig(i)->Q()>0) { | |
204 | deriv[3*j] += 2/pClu->Dig(i)->Q()*(pClu->Dig(i)->Q()-dQpadMath)*derivPart[3*j ][i]; | |
205 | deriv[3*j+1] += 2/pClu->Dig(i)->Q()*(pClu->Dig(i)->Q()-dQpadMath)*derivPart[3*j+1][i]; | |
206 | deriv[3*j+2] += 2/pClu->Dig(i)->Q()*(pClu->Dig(i)->Q()-dQpadMath)*derivPart[3*j+2][i]; | |
207 | } | |
76fd1a96 | 208 | } |
d3da6dc4 | 209 | } |
557ca324 | 210 | //delete array... |
211 | for(Int_t i=0;i<iNpars;i++) delete [] derivPart[i]; delete [] derivPart; | |
76fd1a96 | 212 | } |
557ca324 | 213 | //---gradient calculations ended |
54104a7c | 214 | |
215 | // fit ended. Final calculations | |
216 | ||
76fd1a96 | 217 | |
d3da6dc4 | 218 | }//FitFunction() |
219 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ | |
220 | void AliHMPIDCluster::Print(Option_t* opt)const | |
221 | { | |
222 | //Print current cluster | |
223 | const char *status=0; | |
224 | switch(fSt){ | |
d1bf51e1 | 225 | case kFrm : status="formed " ;break; |
226 | case kUnf : status="unfolded (fit)" ;break; | |
227 | case kCoG : status="coged " ;break; | |
228 | case kLo1 : status="locmax 1 (fit)" ;break; | |
d1bf51e1 | 229 | case kMax : status="exceeded (cog)" ;break; |
230 | case kNot : status="not done (cog)" ;break; | |
231 | case kEmp : status="empty " ;break; | |
232 | case kEdg : status="edge (fit)" ;break; | |
233 | case kSi1 : status="size 1 (cog)" ;break; | |
234 | case kNoLoc: status="no LocMax(fit)" ;break; | |
c5c19d6a | 235 | case kAbn : status="Abnormal fit " ;break; |
03768ab2 | 236 | case kBig : status="Big Clu(>100) " ;break; |
d1bf51e1 | 237 | |
238 | default: status="??????" ;break; | |
d3da6dc4 | 239 | } |
e4a3eae8 | 240 | Double_t ratio=0; |
241 | if(Q()>0&&QRaw()>0) ratio = Q()/QRaw()*100; | |
1d4857c5 | 242 | Printf("%sCLU: ch=%i (%7.3f,%7.3f) Q=%8.3f Qraw=%8.3f(%3.0f%%) Size=%2i DimBox=%i LocMax=%i Chi2=%7.3f %s", |
1006986d | 243 | opt,Ch(),X(),Y(),Q(),QRaw(),ratio,Size(),fBox,fNlocMax,fChi2,status); |
d1bf51e1 | 244 | if(fDigs) fDigs->Print(); |
d3da6dc4 | 245 | }//Print() |
246 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ | |
54104a7c | 247 | Int_t AliHMPIDCluster::Solve(TClonesArray *pCluLst,Int_t *pSigmaCut, Bool_t isTryUnfold) |
d3da6dc4 | 248 | { |
249 | //This methode is invoked when the cluster is formed to solve it. Solve the cluster means to try to unfold the cluster | |
250 | //into the local maxima number of clusters. This methode is invoked by AliHMPIDRconstructor::Dig2Clu() on cluster by cluster basis. | |
251 | //At this point, cluster contains a list of digits, cluster charge and size is precalculated in AddDigit(), position is preset to (-1,-1) in ctor, | |
252 | //status is preset to kFormed in AddDigit(), chamber-sector info is preseted to actual values in AddDigit() | |
253 | //Method first finds number of local maxima and if it's more then one tries to unfold this cluster into local maxima number of clusters | |
254 | //Arguments: pCluLst - cluster list pointer where to add new cluster(s) | |
255 | // isTryUnfold - flag to switch on/off unfolding | |
256 | // Returns: number of local maxima of original cluster | |
76fd1a96 | 257 | const Int_t kMaxLocMax=6; //max allowed number of loc max for fitting |
258 | // | |
259 | CoG(); //First calculate CoG for the given cluster | |
03768ab2 | 260 | |
e4a3eae8 | 261 | Int_t iCluCnt=pCluLst->GetEntriesFast(); //get current number of clusters already stored in the list by previous operations |
03768ab2 | 262 | |
263 | Int_t rawSize = Size(); //get current raw cluster size | |
264 | ||
416b7266 | 265 | if(rawSize>100) { |
266 | fSt = kBig; | |
267 | } else if(isTryUnfold==kFALSE) { | |
268 | fSt = kNot; | |
269 | } else if(rawSize==1) { | |
270 | fSt = kSi1; | |
271 | } | |
272 | ||
273 | if(rawSize>100 || isTryUnfold==kFALSE || rawSize==1) { //No deconv if: 1 - big cluster (also avoid no zero suppression!) | |
274 | // 2 - flag is set to FALSE | |
03768ab2 | 275 | if(fParam->GetInstType()) SetClusterParams(fXX,fYY,fCh); // 3 - size = 1 |
d1bf51e1 | 276 | new ((*pCluLst)[iCluCnt++]) AliHMPIDCluster(*this); //add this raw cluster |
277 | return 1; | |
416b7266 | 278 | |
d1bf51e1 | 279 | } |
76fd1a96 | 280 | |
281 | //Phase 0. Initialise Fitter | |
282 | Double_t arglist[10]; | |
283 | Int_t ierflg = 0; | |
284 | TVirtualFitter *fitter = TVirtualFitter::Fitter(this,3*6); //initialize Fitter | |
285 | ||
286 | arglist[0] = -1; | |
287 | ierflg = fitter->ExecuteCommand("SET PRI", arglist, 1); // no printout | |
288 | ierflg = fitter->ExecuteCommand("SET NOW", arglist, 0); //no warning messages | |
289 | arglist[0] = 1; | |
290 | ierflg = fitter->ExecuteCommand("SET GRA", arglist, 1); //force Fitter to use my gradient | |
291 | ||
292 | fitter->SetFCN(AliHMPIDCluster::FitFunc); | |
293 | ||
294 | // arglist[0] = 1; | |
295 | // ierflg = fitter->ExecuteCommand("SET ERR", arglist ,1); | |
296 | ||
297 | // Set starting values and step sizes for parameters | |
298 | ||
d1bf51e1 | 299 | //Phase 1. Find number of local maxima. Strategy is to check if the current pad has QDC more then all neigbours. Also find the box contaning the cluster |
300 | fNlocMax=0; | |
e4a3eae8 | 301 | |
54104a7c | 302 | for(Int_t iDig1=0;iDig1<rawSize;iDig1++) { //first digits loop |
76fd1a96 | 303 | |
e4a3eae8 | 304 | AliHMPIDDigit *pDig1 = Dig(iDig1); //take next digit |
c5c19d6a | 305 | Int_t iCnt = 0; //counts how many neighbouring pads has QDC more then current one |
76fd1a96 | 306 | |
54104a7c | 307 | for(Int_t iDig2=0;iDig2<rawSize;iDig2++) { //loop on all digits again |
76fd1a96 | 308 | |
d1bf51e1 | 309 | if(iDig1==iDig2) continue; //the same digit, no need to compare |
d3da6dc4 | 310 | AliHMPIDDigit *pDig2 = Dig(iDig2); //take second digit to compare with the first one |
da08475b | 311 | Int_t dist = TMath::Sign(Int_t(pDig1->PadChX()-pDig2->PadChX()),1)+TMath::Sign(Int_t(pDig1->PadChY()-pDig2->PadChY()),1);//distance between pads |
d1bf51e1 | 312 | if(dist==1) //means dig2 is a neighbour of dig1 |
c5c19d6a | 313 | if(pDig2->Q()>=pDig1->Q()) iCnt++; //count number of pads with Q more then Q of current pad |
76fd1a96 | 314 | |
d3da6dc4 | 315 | }//second digits loop |
76fd1a96 | 316 | |
c5c19d6a | 317 | if(iCnt==0&&fNlocMax<kMaxLocMax){ //this pad has Q more then any neighbour so it's local maximum |
76fd1a96 | 318 | |
c5c19d6a | 319 | Double_t xStart=pDig1->LorsX();Double_t yStart=pDig1->LorsY(); |
b38ac33a | 320 | Double_t xMin=xStart-fParam->SizePadX(); |
321 | Double_t xMax=xStart+fParam->SizePadX(); | |
322 | Double_t yMin=yStart-fParam->SizePadY(); | |
323 | Double_t yMax=yStart+fParam->SizePadY(); | |
76fd1a96 | 324 | |
325 | ierflg = fitter->SetParameter(3*fNlocMax ,Form("x%i",fNlocMax),xStart,0.1,xMin,xMax); // X,Y,Q initial values of the loc max pad | |
326 | ierflg = fitter->SetParameter(3*fNlocMax+1,Form("y%i",fNlocMax),yStart,0.1,yMin,yMax); // X, Y constrained to be near the loc max | |
343f4211 | 327 | ierflg = fitter->SetParameter(3*fNlocMax+2,Form("q%i",fNlocMax),pDig1->Q(),0.1,0,10000); // Q constrained to be positive |
76fd1a96 | 328 | |
d1bf51e1 | 329 | fNlocMax++; |
76fd1a96 | 330 | |
d3da6dc4 | 331 | }//if this pad is local maximum |
332 | }//first digits loop | |
d1bf51e1 | 333 | |
d3da6dc4 | 334 | //Phase 2. Fit loc max number of Mathiesons or add this current cluster to the list |
e4a3eae8 | 335 | // case 1 -> no loc max found |
76fd1a96 | 336 | if ( fNlocMax == 0) { // case of no local maxima found: pads with same charge... |
d1bf51e1 | 337 | fNlocMax = 1; |
338 | fSt=kNoLoc; | |
75c94773 | 339 | if(fParam->GetInstType()) SetClusterParams(fXX,fYY,fCh); //need to fill the AliCluster3D part |
340 | new ((*pCluLst)[iCluCnt++]) AliHMPIDCluster(*this); //add new unfolded cluster | |
341 | ||
342 | return fNlocMax; | |
d1bf51e1 | 343 | } |
e4a3eae8 | 344 | |
345 | // case 2 -> loc max found. Check # of loc maxima | |
55a829a5 | 346 | if ( fNlocMax >= kMaxLocMax) { |
b38ac33a | 347 | if(fParam->GetInstType()) SetClusterParams(fXX,fYY,fCh); // if # of local maxima exceeds kMaxLocMax... |
76fd1a96 | 348 | fSt = kMax; new ((*pCluLst)[iCluCnt++]) AliHMPIDCluster(*this); //...add this raw cluster |
349 | } else { //or resonable number of local maxima to fit and user requested it | |
350 | // Now ready for minimization step | |
351 | arglist[0] = 500; //number of steps and sigma on pads charges | |
352 | arglist[1] = 1.; // | |
353 | ||
354 | ierflg = fitter->ExecuteCommand("SIMPLEX",arglist,2); //start fitting with Simplex | |
355 | if (!ierflg) | |
356 | fitter->ExecuteCommand("MIGRAD" ,arglist,2); //fitting improved by Migrad | |
357 | if(ierflg) { | |
c5c19d6a | 358 | Double_t strategy=2; |
76fd1a96 | 359 | ierflg = fitter->ExecuteCommand("SET STR",&strategy,1); //change level of strategy |
360 | if(!ierflg) { | |
361 | ierflg = fitter->ExecuteCommand("SIMPLEX",arglist,2); //start fitting with Simplex | |
362 | if (!ierflg) | |
363 | fitter->ExecuteCommand("MIGRAD" ,arglist,2); //fitting improved by Migrad | |
c5c19d6a | 364 | } |
365 | } | |
76fd1a96 | 366 | if(ierflg) fSt=kAbn; //no convergence of the fit... |
367 | Double_t dummy; char sName[80]; //vars to get results from Minuit | |
368 | Double_t edm, errdef; | |
369 | Int_t nvpar, nparx; | |
54104a7c | 370 | |
e4a3eae8 | 371 | for(Int_t i=0;i<fNlocMax;i++){ //store the local maxima parameters |
54104a7c | 372 | fitter->GetParameter(3*i ,sName, fXX, fErrX , dummy, dummy); // X |
373 | fitter->GetParameter(3*i+1 ,sName, fYY, fErrY , dummy, dummy); // Y | |
76fd1a96 | 374 | fitter->GetParameter(3*i+2 ,sName, fQ, fErrQ , dummy, dummy); // Q |
375 | fitter->GetStats(fChi2, edm, errdef, nvpar, nparx); //get fit infos | |
54104a7c | 376 | |
377 | if(fNlocMax>1)FindClusterSize(i,pSigmaCut); //find clustersize for deconvoluted clusters | |
378 | //after this call, fSi temporarly is the calculated size. Later is set again | |
379 | //to its original value | |
380 | if(fSt!=kAbn) { | |
381 | if(fNlocMax!=1)fSt=kUnf; // if unfolded | |
382 | if(fNlocMax==1&&fSt!=kNoLoc) fSt=kLo1; // if only 1 loc max | |
383 | if ( !IsInPc()) fSt = kEdg; // if Out of Pc | |
384 | if(fSt==kNoLoc) fNlocMax=0; // if with no loc max (pads with same charge..) | |
385 | } | |
386 | if(fParam->GetInstType()) SetClusterParams(fXX,fYY,fCh); //need to fill the AliCluster3D part | |
387 | new ((*pCluLst)[iCluCnt++]) AliHMPIDCluster(*this); //add new unfolded cluster | |
388 | if(fNlocMax>1)SetSize(rawSize); //Original raw size is set again to its proper value | |
e4a3eae8 | 389 | } |
390 | } | |
d1bf51e1 | 391 | |
e4a3eae8 | 392 | return fNlocMax; |
393 | ||
d3da6dc4 | 394 | }//Solve() |
395 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ | |
54104a7c | 396 | void AliHMPIDCluster::FindClusterSize(Int_t i,Int_t *pSigmaCut) |
397 | { | |
398 | ||
399 | //Estimate of the clustersize for a deconvoluted cluster | |
400 | Int_t size = 0; | |
401 | for(Int_t iDig=0;iDig<Size();iDig++) { //digits loop | |
402 | AliHMPIDDigit *pDig = Dig(iDig); //take digit | |
403 | Int_t iCh = pDig->Ch(); | |
404 | Double_t qPad = Q()*pDig->IntMathieson(X(),Y()); //pad charge | |
405 | AliDebug(1,Form("Chamber %i X %i Y %i SigmaCut %i pad %i qpadMath %8.2f qPadRaw %8.2f Qtotal %8.2f cluster n.%i",iCh,pDig->PadChX(),pDig->PadChY(), | |
406 | pSigmaCut[iCh],iDig,qPad,pDig->Q(),QRaw(),i)); | |
407 | if(qPad>pSigmaCut[iCh]) size++; | |
408 | } | |
409 | AliDebug(1,Form(" Calculated size %i",size)); | |
9ecfba5d | 410 | if(size>0) SetSize(size); //in case of size == 0, original raw clustersize used |
54104a7c | 411 | } |