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0df3ca52 | 1 | #include "AliMUONClusterFinderAZ.h" |
2 | ||
1f9a65c4 | 3 | #include <stdlib.h> |
0df3ca52 | 4 | #include <fcntl.h> |
5 | #include <Riostream.h> | |
6 | #include <TROOT.h> | |
7 | #include <TCanvas.h> | |
8 | #include <TLine.h> | |
9 | #include <TTree.h> | |
10 | #include <TH2.h> | |
11 | #include <TView.h> | |
12 | #include <TStyle.h> | |
13 | #include <TMinuit.h> | |
14 | #include <TMatrixD.h> | |
15 | ||
16 | #include "AliHeader.h" | |
17 | #include "AliRun.h" | |
18 | #include "AliMUON.h" | |
19 | #include "AliMUONChamber.h" | |
20 | #include "AliMUONDigit.h" | |
21 | #include "AliMUONHit.h" | |
22 | #include "AliMUONChamber.h" | |
23 | #include "AliMUONRawCluster.h" | |
24 | #include "AliMUONClusterInput.h" | |
25 | #include "AliMUONPixel.h" | |
26 | ||
27 | // This function is used for fitting | |
28 | void fcn1(Int_t &npar, Double_t *gin, Double_t &f, Double_t *par, Int_t iflag); | |
29 | ||
30 | ClassImp(AliMUONClusterFinderAZ) | |
31 | ||
32 | AliMUONClusterFinderAZ* AliMUONClusterFinderAZ::fgClusterFinder = NULL; | |
33 | TMinuit* AliMUONClusterFinderAZ::fgMinuit = NULL; | |
34 | ||
35 | //_____________________________________________________________________________ | |
36 | AliMUONClusterFinderAZ::AliMUONClusterFinderAZ(Bool_t draw=0, Int_t iReco=0) | |
37 | { | |
38 | // Constructor | |
39 | for (Int_t i=0; i<4; i++) {fHist[i] = 0;} | |
40 | fMuonDigits = 0; | |
41 | fSegmentation[1] = fSegmentation[0] = 0; | |
42 | if (!fgClusterFinder) fgClusterFinder = this; | |
43 | if (!fgMinuit) fgMinuit = new TMinuit(8); | |
44 | fDraw = draw; | |
45 | fReco = iReco; | |
46 | fPixArray = new TObjArray(20); | |
47 | /* | |
48 | fPoints = 0; | |
49 | fPhits = 0; | |
50 | fRpoints = 0; | |
51 | fCanvas = 0; | |
52 | fNextCathode = kFALSE; | |
53 | fColPad = 0; | |
54 | */ | |
55 | } | |
56 | ||
57 | //_____________________________________________________________________________ | |
58 | AliMUONClusterFinderAZ::~AliMUONClusterFinderAZ() | |
59 | { | |
60 | // Destructor | |
61 | delete fgMinuit; fgMinuit = 0; delete fPixArray; fPixArray = 0; | |
62 | /* | |
63 | // Delete space point structure | |
64 | if (fPoints) fPoints->Delete(); | |
65 | delete fPoints; | |
66 | fPoints = 0; | |
67 | // | |
68 | if (fPhits) fPhits->Delete(); | |
69 | delete fPhits; | |
70 | fPhits = 0; | |
71 | // | |
72 | if (fRpoints) fRpoints->Delete(); | |
73 | delete fRpoints; | |
74 | fRpoints = 0; | |
75 | */ | |
76 | } | |
77 | ||
78 | //_____________________________________________________________________________ | |
79 | void AliMUONClusterFinderAZ::FindRawClusters() | |
80 | { | |
81 | // To provide the same interface as in AliMUONClusterFinderVS | |
82 | ||
83 | EventLoop (gAlice->GetHeader()->GetEvent(), AliMUONClusterInput::Instance()->Chamber()); | |
84 | } | |
85 | ||
86 | //_____________________________________________________________________________ | |
87 | void AliMUONClusterFinderAZ::EventLoop(Int_t nev=0, Int_t ch=0) | |
88 | { | |
89 | // Loop over events | |
90 | ||
91 | FILE *lun = 0; | |
92 | TCanvas *c1 = 0; | |
93 | TView *view = 0; | |
94 | TH2F *hist = 0; | |
95 | Double_t p1[3]={0}, p2[3]; | |
96 | TTree *TR = 0; | |
97 | if (fDraw) { | |
98 | // File | |
99 | lun = fopen("pool.dat","w"); | |
100 | c1 = new TCanvas("c1","Clusters",0,0,600,700); | |
101 | c1->Divide(1,2); | |
102 | new TCanvas("c2","Mlem",700,0,600,350); | |
103 | } | |
104 | ||
105 | newev: | |
106 | Int_t nparticles = 0, nent; | |
88cb7938 | 107 | |
108 | //Loaders | |
109 | AliRunLoader * rl = AliRunLoader::GetRunLoader(); | |
110 | AliLoader * gime = rl->GetLoader("MUONLoader"); | |
111 | ||
112 | if (!fReco) nparticles = rl->GetEvent(nev); | |
0df3ca52 | 113 | else nparticles = gAlice->GetNtrack(); |
114 | cout << "nev " << nev <<endl; | |
115 | cout << "nparticles " << nparticles <<endl; | |
116 | if (nparticles <= 0) return; | |
117 | ||
88cb7938 | 118 | TTree *TH = gime->TreeH(); |
0df3ca52 | 119 | Int_t ntracks = (Int_t) TH->GetEntries(); |
120 | cout<<"ntracks "<<ntracks<<endl; | |
121 | ||
122 | // Get pointers to Alice detectors and Digits containers | |
123 | AliMUON *MUON = (AliMUON*) gAlice->GetModule("MUON"); | |
124 | if (!MUON) return; | |
125 | // TClonesArray *Particles = gAlice->Particles(); | |
126 | if (!fReco) { | |
88cb7938 | 127 | TR = gime->TreeR(); |
0df3ca52 | 128 | if (TR) { |
129 | MUON->ResetRawClusters(); | |
130 | nent = (Int_t) TR->GetEntries(); | |
131 | if (nent != 1) { | |
132 | cout << "Error in MUONdrawClust" << endl; | |
133 | cout << " nent = " << nent << " not equal to 1" << endl; | |
134 | //exit(0); | |
135 | } | |
136 | } // if (TR) | |
137 | } // if (!fReco) | |
138 | ||
88cb7938 | 139 | TTree *TD = gime->TreeD(); |
0df3ca52 | 140 | //MUON->ResetDigits(); |
141 | ||
142 | TClonesArray *MUONrawclust; | |
143 | AliMUONChamber* iChamber = 0; | |
144 | ||
145 | // As default draw the first cluster of the chamber #0 | |
146 | ||
147 | newchamber: | |
148 | if (ch > 9) {if (fReco) return; nev++; ch = 0; goto newev;} | |
149 | //gAlice->ResetDigits(); | |
150 | fMuonDigits = MUON->DigitsAddress(ch); | |
151 | if (fMuonDigits == 0) return; | |
152 | iChamber = &(MUON->Chamber(ch)); | |
153 | fSegmentation[0] = iChamber->SegmentationModel(1); | |
154 | fSegmentation[1] = iChamber->SegmentationModel(2); | |
155 | fResponse = iChamber->ResponseModel(); | |
156 | ||
157 | nent = 0; | |
158 | ||
159 | if (TD) { | |
160 | nent = (Int_t) TD->GetEntries(); | |
161 | //printf(" entries %d \n", nent); | |
162 | } | |
163 | ||
164 | Int_t ndigits[2]={9,9}, nShown[2]={0}; | |
165 | for (Int_t i=0; i<2; i++) { | |
166 | for (Int_t j=0; j<kDim; j++) {fUsed[i][j]=kFALSE;} | |
167 | } | |
168 | ||
169 | next: | |
170 | if (ndigits[0] == nShown[0] && ndigits[1] == nShown[1]) { | |
171 | // No more clusters | |
172 | if (fReco) return; | |
173 | ch++; | |
174 | goto newchamber; // next chamber | |
175 | } | |
176 | Float_t xpad, ypad, zpad, zpad0; | |
177 | TLine *line[99]={0}; | |
178 | Int_t nLine = 0; | |
179 | Bool_t first = kTRUE; | |
180 | cout << " *** Event # " << nev << " chamber: " << ch << endl; | |
181 | fnPads[0] = fnPads[1] = 0; | |
182 | for (Int_t i=0; i<kDim; i++) {fPadIJ[1][i] = 0;} | |
183 | //for (Int_t iii = 0; iii<999; iii++) { | |
184 | for (Int_t iii = 0; iii<2; iii++) { | |
185 | Int_t cath = TMath::Odd(iii); | |
186 | gAlice->ResetDigits(); | |
187 | TD->GetEvent(cath); | |
188 | fMuonDigits = MUON->DigitsAddress(ch); | |
189 | ||
190 | ndigits[cath] = fMuonDigits->GetEntriesFast(); | |
191 | if (!ndigits[0] && !ndigits[1]) {if (fReco) return; ch++; goto newchamber;} | |
192 | if (ndigits[cath] == 0) continue; | |
193 | cout << " ndigits: " << ndigits[cath] << " " << cath << endl; | |
194 | ||
195 | AliMUONDigit *mdig; | |
196 | Int_t digit; | |
197 | ||
198 | Bool_t EOC = kTRUE; // end-of-cluster | |
199 | for (digit = 0; digit < ndigits[cath]; digit++) { | |
200 | mdig = (AliMUONDigit*)fMuonDigits->UncheckedAt(digit); | |
201 | if (mdig->Cathode() != cath) continue; | |
202 | if (first) { | |
203 | // Find first unused pad | |
204 | if (fUsed[cath][digit]) continue; | |
205 | fSegmentation[cath]->GetPadC(mdig->PadX(),mdig->PadY(),xpad,ypad,zpad0); | |
206 | } else { | |
207 | if (fUsed[cath][digit]) continue; | |
208 | fSegmentation[cath]->GetPadC(mdig->PadX(),mdig->PadY(),xpad,ypad,zpad); | |
209 | if (TMath::Abs(zpad-zpad0)>0.1) continue; // different slats | |
210 | // Find a pad overlapping with the cluster | |
211 | if (!Overlap(cath,mdig)) continue; | |
212 | } | |
213 | // Add pad - recursive call | |
214 | AddPad(cath,digit); | |
215 | EOC = kFALSE; | |
216 | if (digit >= 0) break; | |
217 | } | |
218 | if (first && EOC) { | |
219 | // No more unused pads | |
220 | if (cath == 0) continue; // on cathode #0 - check #1 | |
221 | else { | |
222 | // No more clusters | |
223 | if (fReco) return; | |
224 | ch++; | |
225 | goto newchamber; // next chamber | |
226 | } | |
227 | } | |
228 | if (EOC) break; // cluster found | |
229 | first = kFALSE; | |
230 | cout << " nPads: " << fnPads[cath] << " " << nShown[cath]+fnPads[cath] << " " << cath << endl; | |
231 | } // for (Int_t iii = 0; | |
232 | ||
233 | ||
234 | if (fReco) goto skip; | |
235 | char hName[4]; | |
236 | for (Int_t cath = 0; cath<2; cath++) { | |
237 | // Build histograms | |
238 | if (fHist[cath*2]) {fHist[cath*2]->Delete(); fHist[cath*2] = 0;} | |
239 | if (fHist[cath*2+1]) {fHist[cath*2+1]->Delete(); fHist[cath*2+1] = 0;} | |
240 | if (fnPads[cath] == 0) continue; // cluster on one cathode only | |
241 | Float_t wxMin=999, wxMax=0, wyMin=999, wyMax=0; | |
242 | Int_t minDx=0, maxDx=0, minDy=0, maxDy=0; | |
243 | for (Int_t i=0; i<fnPads[0]+fnPads[1]; i++) { | |
244 | if (fPadIJ[0][i] != cath) continue; | |
245 | if (fXyq[3][i] < wxMin) {wxMin = fXyq[3][i]; minDx = i;} | |
246 | if (fXyq[3][i] > wxMax) {wxMax = fXyq[3][i]; maxDx = i;} | |
247 | if (fXyq[4][i] < wyMin) {wyMin = fXyq[4][i]; minDy = i;} | |
248 | if (fXyq[4][i] > wyMax) {wyMax = fXyq[4][i]; maxDy = i;} | |
249 | } | |
250 | cout << minDx << maxDx << minDy << maxDy << endl; | |
251 | Int_t nx, ny, padSize; | |
252 | Float_t xmin=9999, xmax=-9999, ymin=9999, ymax=-9999; | |
253 | if (TMath::Nint(fXyq[3][minDx]*1000) == TMath::Nint(fXyq[3][maxDx]*1000) && | |
254 | TMath::Nint(fXyq[4][minDy]*1000) == TMath::Nint(fXyq[4][maxDy]*1000)) { | |
255 | // the same segmentation | |
256 | cout << " Same" << endl; | |
257 | cout << fXyq[3][minDx] << " " << fXyq[3][maxDx] << " " << fXyq[4][minDy] << " " << fXyq[4][maxDy] << endl; | |
258 | for (Int_t i=0; i<fnPads[0]+fnPads[1]; i++) { | |
259 | if (fPadIJ[0][i] != cath) continue; | |
260 | if (fXyq[0][i] < xmin) xmin = fXyq[0][i]; | |
261 | if (fXyq[0][i] > xmax) xmax = fXyq[0][i]; | |
262 | if (fXyq[1][i] < ymin) ymin = fXyq[1][i]; | |
263 | if (fXyq[1][i] > ymax) ymax = fXyq[1][i]; | |
264 | } | |
265 | xmin -= fXyq[3][minDx]; xmax += fXyq[3][minDx]; | |
266 | ymin -= fXyq[4][minDy]; ymax += fXyq[4][minDy]; | |
267 | nx = TMath::Nint ((xmax-xmin)/wxMin/2); | |
268 | ny = TMath::Nint ((ymax-ymin)/wyMin/2); | |
269 | sprintf(hName,"h%d",cath*2); | |
270 | fHist[cath*2] = new TH2F(hName,"cluster",nx,xmin,xmax,ny,ymin,ymax); | |
271 | cout << fHist[cath*2] << " " << fnPads[cath] << endl; | |
272 | for (Int_t i=0; i<fnPads[0]+fnPads[1]; i++) { | |
273 | if (fPadIJ[0][i] != cath) continue; | |
274 | fHist[cath*2]->Fill(fXyq[0][i],fXyq[1][i],fXyq[2][i]); | |
275 | //cout << fXyq[0][i] << fXyq[1][i] << fXyq[2][i] << endl; | |
276 | } | |
277 | } else { | |
278 | // different segmentation in the cluster | |
279 | cout << " Different" << endl; | |
280 | cout << fXyq[3][minDx] << " " << fXyq[3][maxDx] << " " << fXyq[4][minDy] << " " << fXyq[4][maxDy] << endl; | |
281 | Int_t nOK = 0; | |
282 | Int_t indx, locMin, locMax; | |
283 | if (TMath::Nint(fXyq[3][minDx]*1000) != TMath::Nint(fXyq[3][maxDx]*1000)) { | |
284 | // different segmentation along x | |
285 | indx = 0; | |
286 | locMin = minDx; | |
287 | locMax = maxDx; | |
288 | } else { | |
289 | // different segmentation along y | |
290 | indx = 1; | |
291 | locMin = minDy; | |
292 | locMax = maxDy; | |
293 | } | |
294 | Int_t loc = locMin; | |
295 | for (Int_t i=0; i<2; i++) { | |
296 | // loop over different pad sizes | |
297 | if (i>0) loc = locMax; | |
298 | padSize = TMath::Nint(fXyq[indx+3][loc]*1000); | |
299 | xmin = 9999; xmax = -9999; ymin = 9999; ymax = -9999; | |
300 | for (Int_t j=0; j<fnPads[0]+fnPads[1]; j++) { | |
301 | if (fPadIJ[0][j] != cath) continue; | |
302 | if (TMath::Nint(fXyq[indx+3][j]*1000) != padSize) continue; | |
303 | nOK++; | |
304 | xmin = TMath::Min (xmin,fXyq[0][j]); | |
305 | xmax = TMath::Max (xmax,fXyq[0][j]); | |
306 | ymin = TMath::Min (ymin,fXyq[1][j]); | |
307 | ymax = TMath::Max (ymax,fXyq[1][j]); | |
308 | } | |
309 | xmin -= fXyq[3][loc]; xmax += fXyq[3][loc]; | |
310 | ymin -= fXyq[4][loc]; ymax += fXyq[4][loc]; | |
311 | nx = TMath::Nint ((xmax-xmin)/fXyq[3][loc]/2); | |
312 | ny = TMath::Nint ((ymax-ymin)/fXyq[4][loc]/2); | |
313 | sprintf(hName,"h%d",cath*2+i); | |
314 | fHist[cath*2+i] = new TH2F(hName,"cluster",nx,xmin,xmax,ny,ymin,ymax); | |
315 | for (Int_t j=0; j<fnPads[0]+fnPads[1]; j++) { | |
316 | if (fPadIJ[0][j] != cath) continue; | |
317 | if (TMath::Nint(fXyq[indx+3][j]*1000) != padSize) continue; | |
318 | fHist[cath*2+i]->Fill(fXyq[0][j],fXyq[1][j],fXyq[2][j]); | |
319 | } | |
320 | } // for (Int_t i=0; | |
321 | if (nOK != fnPads[cath]) cout << " *** Too many segmentations: nPads, nOK " << fnPads[cath] << " " << nOK << endl; | |
322 | } // if (TMath::Nint(fXyq[3][minDx]*1000) | |
323 | } // for (Int_t cath = 0; | |
324 | ||
325 | // Draw histograms and coordinates | |
326 | for (Int_t cath=0; cath<2; cath++) { | |
327 | if (cath == 0) ModifyHistos(); | |
328 | if (fnPads[cath] == 0) continue; // cluster on one cathode only | |
329 | if (fDraw) { | |
330 | c1->cd(cath+1); | |
331 | gPad->SetTheta(55); | |
332 | gPad->SetPhi(30); | |
cd747ddb | 333 | Double_t x, y, x0, y0, r1=999, r2=0; |
0df3ca52 | 334 | if (fHist[cath*2+1]) { |
335 | // | |
336 | x0 = fHist[cath*2]->GetXaxis()->GetXmin() - 1000*TMath::Cos(30*TMath::Pi()/180); | |
337 | y0 = fHist[cath*2]->GetYaxis()->GetXmin() - 1000*TMath::Sin(30*TMath::Pi()/180); | |
338 | r1 = 0; | |
339 | Int_t ihist=cath*2; | |
340 | for (Int_t iy=1; iy<=fHist[ihist]->GetNbinsY(); iy++) { | |
341 | y = fHist[ihist]->GetYaxis()->GetBinCenter(iy) | |
342 | + fHist[ihist]->GetYaxis()->GetBinWidth(iy); | |
343 | for (Int_t ix=1; ix<=fHist[ihist]->GetNbinsX(); ix++) { | |
344 | if (fHist[ihist]->GetCellContent(ix,iy) > 0.1) { | |
345 | x = fHist[ihist]->GetXaxis()->GetBinCenter(ix) | |
346 | + fHist[ihist]->GetXaxis()->GetBinWidth(ix); | |
347 | r1 = TMath::Max (r1,TMath::Sqrt((x-x0)*(x-x0)+(y-y0)*(y-y0))); | |
348 | } | |
349 | } | |
350 | } | |
351 | ihist = cath*2 + 1 ; | |
352 | for (Int_t iy=1; iy<=fHist[ihist]->GetNbinsY(); iy++) { | |
353 | y = fHist[ihist]->GetYaxis()->GetBinCenter(iy) | |
354 | + fHist[ihist]->GetYaxis()->GetBinWidth(iy); | |
355 | for (Int_t ix=1; ix<=fHist[ihist]->GetNbinsX(); ix++) { | |
356 | if (fHist[ihist]->GetCellContent(ix,iy) > 0.1) { | |
357 | x = fHist[ihist]->GetXaxis()->GetBinCenter(ix) | |
358 | + fHist[ihist]->GetXaxis()->GetBinWidth(ix); | |
359 | r2 = TMath::Max (r2,TMath::Sqrt((x-x0)*(x-x0)+(y-y0)*(y-y0))); | |
360 | } | |
361 | } | |
362 | } | |
363 | cout << r1 << " " << r2 << endl; | |
364 | } // if (fHist[cath*2+1]) | |
365 | if (r1 > r2) { | |
366 | //fHist[cath*2]->Draw("lego1"); | |
367 | fHist[cath*2]->Draw("lego1Fb"); | |
368 | //if (fHist[cath*2+1]) fHist[cath*2+1]->Draw("lego1SameAxisBb"); | |
369 | if (fHist[cath*2+1]) fHist[cath*2+1]->Draw("lego1SameAxisBbFb"); | |
370 | } else { | |
371 | //fHist[cath*2+1]->Draw("lego1"); | |
372 | fHist[cath*2+1]->Draw("lego1Fb"); | |
373 | //fHist[cath*2]->Draw("lego1SameAxisBb"); | |
374 | fHist[cath*2]->Draw("lego1SameAxisFbBb"); | |
375 | } | |
376 | c1->Update(); | |
377 | } // if (fDraw) | |
378 | } // for (Int_t cath = 0; | |
379 | ||
380 | // Draw generated hits | |
381 | Double_t xNDC[6]; | |
382 | hist = fHist[0] ? fHist[0] : fHist[2]; | |
383 | p2[2] = hist->GetMaximum(); | |
384 | view = 0; | |
385 | if (c1) view = c1->Pad()->GetView(); | |
386 | cout << " *** GEANT hits *** " << endl; | |
387 | fnMu = 0; | |
388 | Int_t ix, iy, iok; | |
389 | for (Int_t i=0; i<ntracks; i++) { | |
390 | TH->GetEvent(i); | |
391 | for (AliMUONHit* mHit=(AliMUONHit*)MUON->FirstHit(-1); | |
392 | mHit; | |
393 | mHit=(AliMUONHit*)MUON->NextHit()) { | |
394 | if (mHit->Chamber() != ch+1) continue; // chamber number | |
395 | if (TMath::Abs(mHit->Z()-zpad0) > 1) continue; // different slat | |
396 | p2[0] = p1[0] = mHit->X(); // x-pos of hit | |
397 | p2[1] = p1[1] = mHit->Y(); // y-pos | |
398 | if (p1[0] < hist->GetXaxis()->GetXmin() || | |
399 | p1[0] > hist->GetXaxis()->GetXmax()) continue; | |
400 | if (p1[1] < hist->GetYaxis()->GetXmin() || | |
401 | p1[1] > hist->GetYaxis()->GetXmax()) continue; | |
402 | // Check if track comes thru pads with signal | |
403 | iok = 0; | |
404 | for (Int_t ihist=0; ihist<4; ihist++) { | |
405 | if (!fHist[ihist]) continue; | |
406 | ix = fHist[ihist]->GetXaxis()->FindBin(p1[0]); | |
407 | iy = fHist[ihist]->GetYaxis()->FindBin(p1[1]); | |
408 | if (fHist[ihist]->GetCellContent(ix,iy) > 0.5) {iok = 1; break;} | |
409 | } | |
410 | if (!iok) continue; | |
411 | gStyle->SetLineColor(1); | |
412 | if (TMath::Abs((Int_t)mHit->Particle()) == 13) { | |
413 | gStyle->SetLineColor(4); | |
414 | fnMu++; | |
415 | if (fnMu <= 2) { | |
416 | fxyMu[fnMu-1][0] = p1[0]; | |
417 | fxyMu[fnMu-1][1] = p1[1]; | |
418 | } | |
419 | } | |
420 | printf(" X=%10.4f, Y=%10.4f, Z=%10.4f\n",p1[0],p1[1],mHit->Z()); | |
421 | if (view) { | |
422 | view->WCtoNDC(p1, &xNDC[0]); | |
423 | view->WCtoNDC(p2, &xNDC[3]); | |
424 | for (Int_t ipad=1; ipad<3; ipad++) { | |
425 | c1->cd(ipad); | |
426 | //c1->DrawLine(xpad[0],xpad[1],xpad[3],xpad[4]); | |
427 | line[nLine] = new TLine(xNDC[0],xNDC[1],xNDC[3],xNDC[4]); | |
428 | line[nLine++]->Draw(); | |
429 | } | |
430 | } | |
431 | } // for (AliMUONHit* mHit= | |
432 | } // for (Int_t i=0; i<ntracks; | |
433 | ||
434 | // Draw reconstructed coordinates | |
435 | MUONrawclust = MUON->RawClustAddress(ch); | |
436 | TR->GetEvent(ch); | |
437 | //cout << MUONrawclust << " " << MUONrawclust->GetEntries() << endl; | |
438 | AliMUONRawCluster *mRaw; | |
439 | gStyle->SetLineColor(3); | |
440 | cout << " *** Reconstructed hits *** " << endl; | |
441 | for (Int_t i=0; i<MUONrawclust->GetEntries(); i++) { | |
442 | mRaw = (AliMUONRawCluster*)MUONrawclust->UncheckedAt(i); | |
443 | if (TMath::Abs(mRaw->fZ[0]-zpad0) > 1) continue; // different slat | |
444 | p2[0] = p1[0] = mRaw->fX[0]; // x-pos of hit | |
445 | p2[1] = p1[1] = mRaw->fY[0]; // y-pos | |
446 | if (p1[0] < hist->GetXaxis()->GetXmin() || | |
447 | p1[0] > hist->GetXaxis()->GetXmax()) continue; | |
448 | if (p1[1] < hist->GetYaxis()->GetXmin() || | |
449 | p1[1] > hist->GetYaxis()->GetXmax()) continue; | |
450 | /* | |
451 | TD->GetEvent(cath); | |
452 | cout << mRaw->fMultiplicity[0] << mRaw->fMultiplicity[1] << endl; | |
453 | for (Int_t j=0; j<mRaw->fMultiplicity[cath]; j++) { | |
454 | Int_t digit = mRaw->fIndexMap[j][cath]; | |
455 | cout << ((AliMUONDigit*)fMuonDigits->UncheckedAt(digit))->Signal() << endl; | |
456 | } | |
457 | */ | |
458 | // Check if track comes thru pads with signal | |
459 | iok = 0; | |
460 | for (Int_t ihist=0; ihist<4; ihist++) { | |
461 | if (!fHist[ihist]) continue; | |
462 | ix = fHist[ihist]->GetXaxis()->FindBin(p1[0]); | |
463 | iy = fHist[ihist]->GetYaxis()->FindBin(p1[1]); | |
464 | if (fHist[ihist]->GetCellContent(ix,iy) > 0.5) {iok = 1; break;} | |
465 | } | |
466 | if (!iok) continue; | |
467 | printf(" X=%10.4f, Y=%10.4f, Z=%10.4f\n",p1[0],p1[1],mRaw->fZ[0]); | |
468 | if (view) { | |
469 | view->WCtoNDC(p1, &xNDC[0]); | |
470 | view->WCtoNDC(p2, &xNDC[3]); | |
471 | for (Int_t ipad=1; ipad<3; ipad++) { | |
472 | c1->cd(ipad); | |
473 | line[nLine] = new TLine(xNDC[0],xNDC[1],xNDC[3],xNDC[4]); | |
474 | line[nLine++]->Draw(); | |
475 | } | |
476 | } | |
477 | } // for (Int_t i=0; i<MUONrawclust->GetEntries(); | |
478 | if (fDraw) c1->Update(); | |
479 | ||
480 | skip: | |
481 | // Use MLEM for cluster finder | |
482 | fZpad = zpad0; | |
483 | Int_t nMax = 1, localMax[100], maxPos[100]; | |
484 | Double_t maxVal[100]; | |
485 | ||
486 | if (CheckPrecluster(nShown)) { | |
487 | BuildPixArray(); | |
488 | if (fnPads[0]+fnPads[1] > 50) nMax = FindLocalMaxima(localMax, maxVal); | |
489 | if (nMax > 1) TMath::Sort(nMax, maxVal, maxPos, kTRUE); // in decreasing order | |
490 | for (Int_t i=0; i<nMax; i++) { | |
491 | if (nMax > 1) FindCluster(localMax, maxPos[i]); | |
492 | if (!MainLoop()) cout << " MainLoop failed " << endl; | |
493 | if (i < nMax-1) { | |
494 | for (Int_t j=0; j<fnPads[0]+fnPads[1]; j++) { | |
495 | if (fPadIJ[1][j] == 0) continue; // pad charge was not modified | |
496 | fPadIJ[1][j] = 0; | |
497 | fXyq[2][j] = fXyq[5][j]; // use backup charge value | |
498 | } | |
499 | } | |
500 | } | |
501 | } | |
502 | if (fReco) goto next; | |
503 | ||
504 | for (Int_t i=0; i<fnMu; i++) { | |
505 | // Check again if muon come thru the used pads (due to extra splitting) | |
506 | for (Int_t j=0; j<fnPads[0]+fnPads[1]; j++) { | |
507 | if (TMath::Abs(fxyMu[i][0]-fXyq[0][j])<fXyq[3][j] && | |
508 | TMath::Abs(fxyMu[i][1]-fXyq[1][j])<fXyq[4][j]) { | |
509 | printf("%12.3e %12.3e %12.3e %12.3e\n",fxyMu[i][2],fxyMu[i][3],fxyMu[i][4],fxyMu[i][5]); | |
510 | if (lun) fprintf(lun,"%4d %2d %12.3e %12.3e %12.3e %12.3e\n",nev,ch,fxyMu[i][2],fxyMu[i][3],fxyMu[i][4],fxyMu[i][5]); | |
511 | break; | |
512 | } | |
513 | } | |
514 | } // for (Int_t i=0; i<fnMu; | |
515 | ||
516 | // What's next? | |
517 | char command[8]; | |
518 | cout << " What is next? " << endl; | |
519 | command[0] = ' '; | |
520 | if (fDraw) gets(command); | |
521 | if (command[0] == 'n' || command[0] == 'N') {nev++; goto newev;} // next event | |
522 | else if (command[0] == 'q' || command[0] == 'Q') {fclose(lun); return;} // exit display | |
523 | //else if (command[0] == 'r' || command[0] == 'R') goto redraw; // redraw points | |
524 | else if (command[0] == 'c' || command[0] == 'C') { | |
525 | // new chamber | |
526 | sscanf(command+1,"%d",&ch); | |
527 | goto newchamber; | |
528 | } | |
529 | else if (command[0] == 'e' || command[0] == 'E') { | |
530 | // new event | |
531 | sscanf(command+1,"%d",&nev); | |
532 | goto newev; | |
533 | } | |
534 | else goto next; // Next cluster | |
535 | } | |
536 | ||
537 | //_____________________________________________________________________________ | |
538 | void AliMUONClusterFinderAZ::ModifyHistos(void) | |
539 | { | |
540 | // Modify histograms to bring them to the same size | |
541 | Int_t nhist = 0; | |
542 | Float_t hlim[4][4], hbin[4][4]; // first index - xmin, xmax, ymin, ymax | |
543 | Float_t binMin[4] = {999,999,999,999}; | |
544 | ||
545 | for (Int_t i=0; i<4; i++) { | |
546 | if (!fHist[i]) continue; | |
547 | hlim[0][nhist] = fHist[i]->GetXaxis()->GetXmin(); // xmin | |
548 | hlim[1][nhist] = fHist[i]->GetXaxis()->GetXmax(); // xmax | |
549 | hlim[2][nhist] = fHist[i]->GetYaxis()->GetXmin(); // ymin | |
550 | hlim[3][nhist] = fHist[i]->GetYaxis()->GetXmax(); // ymax | |
551 | hbin[0][nhist] = hbin[1][nhist] = fHist[i]->GetXaxis()->GetBinWidth(1); | |
552 | hbin[2][nhist] = hbin[3][nhist] = fHist[i]->GetYaxis()->GetBinWidth(1); | |
553 | binMin[0] = TMath::Min(binMin[0],hbin[0][nhist]); | |
554 | binMin[2] = TMath::Min(binMin[2],hbin[2][nhist]); | |
555 | nhist++; | |
556 | } | |
557 | binMin[1] = binMin[0]; | |
558 | binMin[3] = binMin[2]; | |
559 | cout << " Nhist: " << nhist << endl; | |
560 | ||
561 | Int_t imin, imax; | |
562 | for (Int_t lim=0; lim<4; lim++) { | |
563 | while (1) { | |
564 | imin = TMath::LocMin(nhist,hlim[lim]); | |
565 | imax = TMath::LocMax(nhist,hlim[lim]); | |
566 | if (TMath::Abs(hlim[lim][imin]-hlim[lim][imax])<0.01*binMin[lim]) break; | |
567 | if (lim == 0 || lim == 2) { | |
568 | // find lower limit | |
569 | hlim[lim][imax] -= hbin[lim][imax]; | |
570 | } else { | |
571 | // find upper limit | |
572 | hlim[lim][imin] += hbin[lim][imin]; | |
573 | } | |
574 | } // while (1) | |
575 | } | |
576 | ||
577 | // Rebuild histograms | |
578 | nhist = 0; | |
579 | TH2F *hist = 0; | |
580 | Int_t nx, ny; | |
cd747ddb | 581 | Double_t x, y, cont, cmax=0; |
0df3ca52 | 582 | char hName[4]; |
583 | for (Int_t ihist=0; ihist<4; ihist++) { | |
584 | if (!fHist[ihist]) continue; | |
585 | nx = TMath::Nint((hlim[1][nhist]-hlim[0][nhist])/hbin[0][nhist]); | |
586 | ny = TMath::Nint((hlim[3][nhist]-hlim[2][nhist])/hbin[2][nhist]); | |
587 | //hist = new TH2F("h","hist",nx,hlim[0][nhist],hlim[1][nhist],ny,hlim[2][nhist],hlim[3][nhist]); | |
588 | sprintf(hName,"hh%d",ihist); | |
589 | hist = new TH2F(hName,"hist",nx,hlim[0][nhist],hlim[1][nhist],ny,hlim[2][nhist],hlim[3][nhist]); | |
590 | for (Int_t i=1; i<=fHist[ihist]->GetNbinsX(); i++) { | |
591 | x = fHist[ihist]->GetXaxis()->GetBinCenter(i); | |
592 | for (Int_t j=1; j<=fHist[ihist]->GetNbinsY(); j++) { | |
593 | y = fHist[ihist]->GetYaxis()->GetBinCenter(j); | |
594 | cont = fHist[ihist]->GetCellContent(i,j); | |
595 | hist->Fill(x,y,cont); | |
596 | } | |
597 | } | |
598 | cmax = TMath::Max (cmax,hist->GetMaximum()); | |
599 | fHist[ihist]->Delete(); | |
600 | fHist[ihist] = new TH2F(*hist); | |
601 | hist->Delete(); | |
602 | nhist++; | |
603 | } | |
604 | printf("%f \n",cmax); | |
605 | ||
606 | for (Int_t ihist=0; ihist<4; ihist++) { | |
607 | if (!fHist[ihist]) continue; | |
608 | fHist[ihist]->SetMaximum(cmax); | |
609 | } | |
610 | } | |
611 | ||
612 | //_____________________________________________________________________________ | |
613 | void AliMUONClusterFinderAZ::AddPad(Int_t cath, Int_t digit) | |
614 | { | |
615 | // Add pad to the cluster | |
616 | AliMUONDigit *mdig = (AliMUONDigit*)fMuonDigits->UncheckedAt(digit); | |
617 | ||
618 | Int_t charge = mdig->Signal(); | |
619 | // get the center of the pad | |
620 | Float_t xpad, ypad, zpad; | |
621 | fSegmentation[cath]->GetPadC(mdig->PadX(), mdig->PadY(), xpad, ypad, zpad); | |
622 | ||
623 | Int_t isec = fSegmentation[cath]->Sector(mdig->PadX(), mdig->PadY()); | |
624 | Int_t nPads = fnPads[0] + fnPads[1]; | |
625 | fXyq[0][nPads] = xpad; | |
626 | fXyq[1][nPads] = ypad; | |
627 | fXyq[2][nPads] = charge; | |
628 | fXyq[3][nPads] = fSegmentation[cath]->Dpx(isec)/2; | |
629 | fXyq[4][nPads] = fSegmentation[cath]->Dpy(isec)/2; | |
630 | fXyq[5][nPads] = digit; | |
631 | fPadIJ[0][nPads] = cath; | |
632 | fPadIJ[1][nPads] = 0; | |
633 | fUsed[cath][digit] = kTRUE; | |
634 | //cout << " bbb " << fXyq[cath][2][nPads] << " " << fXyq[cath][0][nPads] << " " << fXyq[cath][1][nPads] << " " << fXyq[cath][3][nPads] << " " << fXyq[cath][4][nPads] << " " << zpad << " " << nPads << endl; | |
635 | fnPads[cath]++; | |
636 | ||
637 | // Check neighbours | |
638 | Int_t nn, ix, iy, xList[10], yList[10]; | |
639 | AliMUONDigit *mdig1; | |
640 | ||
641 | Int_t ndigits = fMuonDigits->GetEntriesFast(); | |
642 | fSegmentation[cath]->Neighbours(mdig->PadX(),mdig->PadY(),&nn,xList,yList); | |
643 | for (Int_t in=0; in<nn; in++) { | |
644 | ix=xList[in]; | |
645 | iy=yList[in]; | |
646 | for (Int_t digit1 = 0; digit1 < ndigits; digit1++) { | |
647 | if (digit1 == digit) continue; | |
648 | mdig1 = (AliMUONDigit*)fMuonDigits->UncheckedAt(digit1); | |
649 | if (mdig1->Cathode() != cath) continue; | |
650 | if (!fUsed[cath][digit1] && mdig1->PadX() == ix && mdig1->PadY() == iy) { | |
651 | fUsed[cath][digit1] = kTRUE; | |
652 | // Add pad - recursive call | |
653 | AddPad(cath,digit1); | |
654 | } | |
655 | } //for (Int_t digit1 = 0; | |
656 | } // for (Int_t in=0; | |
657 | } | |
658 | ||
659 | //_____________________________________________________________________________ | |
660 | Bool_t AliMUONClusterFinderAZ::Overlap(Int_t cath, TObject *dig) | |
661 | { | |
662 | // Check if the pad from one cathode overlaps with a pad | |
663 | // in the precluster on the other cathode | |
664 | ||
665 | AliMUONDigit *mdig = (AliMUONDigit*) dig; | |
666 | ||
667 | Float_t xpad, ypad, zpad; | |
668 | fSegmentation[cath]->GetPadC(mdig->PadX(), mdig->PadY(), xpad, ypad, zpad); | |
669 | Int_t isec = fSegmentation[cath]->Sector(mdig->PadX(), mdig->PadY()); | |
670 | ||
671 | Float_t xy1[4], xy12[4]; | |
672 | xy1[0] = xpad - fSegmentation[cath]->Dpx(isec)/2; | |
673 | xy1[1] = xy1[0] + fSegmentation[cath]->Dpx(isec); | |
674 | xy1[2] = ypad - fSegmentation[cath]->Dpy(isec)/2; | |
675 | xy1[3] = xy1[2] + fSegmentation[cath]->Dpy(isec); | |
676 | //cout << " ok " << fnPads[0]+fnPads[1] << xy1[0] << xy1[1] << xy1[2] << xy1[3] << endl; | |
677 | ||
678 | Int_t cath1 = TMath::Even(cath); | |
679 | for (Int_t i=0; i<fnPads[0]+fnPads[1]; i++) { | |
680 | if (fPadIJ[0][i] != cath1) continue; | |
681 | if (Overlap(xy1, i, xy12, 0)) return kTRUE; | |
682 | } | |
683 | return kFALSE; | |
684 | } | |
685 | ||
686 | //_____________________________________________________________________________ | |
687 | Bool_t AliMUONClusterFinderAZ::Overlap(Float_t *xy1, Int_t iPad, Float_t *xy12, Int_t iSkip) | |
688 | { | |
689 | // Check if the pads xy1 and iPad overlap and return overlap area | |
690 | ||
691 | Float_t xy2[4]; | |
692 | xy2[0] = fXyq[0][iPad] - fXyq[3][iPad]; | |
693 | xy2[1] = fXyq[0][iPad] + fXyq[3][iPad]; | |
694 | if (xy1[0] > xy2[1]-1.e-4 || xy1[1] < xy2[0]+1.e-4) return kFALSE; | |
695 | xy2[2] = fXyq[1][iPad] - fXyq[4][iPad]; | |
696 | xy2[3] = fXyq[1][iPad] + fXyq[4][iPad]; | |
697 | if (xy1[2] > xy2[3]-1.e-4 || xy1[3] < xy2[2]+1.e-4) return kFALSE; | |
698 | if (!iSkip) return kTRUE; // just check overlap (w/out computing the area) | |
699 | xy12[0] = TMath::Max (xy1[0],xy2[0]); | |
700 | xy12[1] = TMath::Min (xy1[1],xy2[1]); | |
701 | xy12[2] = TMath::Max (xy1[2],xy2[2]); | |
702 | xy12[3] = TMath::Min (xy1[3],xy2[3]); | |
703 | return kTRUE; | |
704 | } | |
705 | ||
706 | //_____________________________________________________________________________ | |
707 | /* | |
708 | Bool_t AliMUONClusterFinderAZ::Overlap(Int_t i, Int_t j, Float_t *xy12, Int_t iSkip) | |
709 | { | |
710 | // Check if the pads i and j overlap and return overlap area | |
711 | ||
712 | Float_t xy1[4], xy2[4]; | |
713 | return Overlap(xy1, xy2, xy12, iSkip); | |
714 | } | |
715 | */ | |
716 | //_____________________________________________________________________________ | |
717 | Bool_t AliMUONClusterFinderAZ::CheckPrecluster(Int_t *nShown) | |
718 | { | |
719 | // Check precluster in order to attempt to simplify it (mostly for | |
720 | // two-cathode preclusters) | |
721 | ||
722 | Int_t i1, i2; | |
723 | Float_t xy1[4], xy12[4]; | |
724 | ||
725 | Int_t npad = fnPads[0] + fnPads[1]; | |
726 | ||
727 | // If pads have the same size take average of pads on both cathodes | |
728 | Int_t sameSize = (fnPads[0] && fnPads[1]) ? 1 : 0; | |
729 | if (sameSize) { | |
730 | Double_t xSize = -1, ySize = 0; | |
731 | for (Int_t i=0; i<npad; i++) { | |
732 | if (fXyq[2][i] < 0) continue; | |
733 | if (xSize < 0) { xSize = fXyq[3][i]; ySize = fXyq[4][i]; } | |
734 | if (TMath::Abs(xSize-fXyq[3][i]) > 1.e-4 || TMath::Abs(ySize-fXyq[4][i]) > 1.e-4) { sameSize = 0; break; } | |
735 | } | |
736 | } // if (sameSize) | |
737 | if (sameSize && (fnPads[0] > 2 || fnPads[1] > 2)) { | |
738 | nShown[0] += fnPads[0]; | |
739 | nShown[1] += fnPads[1]; | |
740 | fnPads[0] = fnPads[1] = 0; | |
741 | Int_t div; | |
742 | for (Int_t i=0; i<npad; i++) { | |
743 | if (fXyq[2][i] < 0) continue; // used pad | |
744 | fXyq[2][fnPads[0]] = fXyq[2][i]; | |
745 | div = 1; | |
746 | for (Int_t j=i+1; j<npad; j++) { | |
747 | if (fPadIJ[0][j] == fPadIJ[0][i]) continue; // same cathode | |
748 | if (TMath::Abs(fXyq[0][j]-fXyq[0][i]) > 1.e-4) continue; | |
749 | if (TMath::Abs(fXyq[1][j]-fXyq[1][i]) > 1.e-4) continue; | |
750 | fXyq[2][fnPads[0]] += fXyq[2][j]; | |
751 | div = 2; | |
752 | fXyq[2][j] = -2; | |
753 | break; | |
754 | } | |
755 | fXyq[2][fnPads[0]] /= div; | |
756 | fXyq[0][fnPads[0]] = fXyq[0][i]; | |
757 | fXyq[1][fnPads[0]] = fXyq[1][i]; | |
758 | fPadIJ[0][fnPads[0]++] = 0; | |
759 | } | |
760 | } // if (sameSize) | |
761 | ||
762 | // Check if one-cathode precluster | |
763 | i1 = fnPads[0]!=0 ? 0 : 1; | |
764 | i2 = fnPads[1]!=0 ? 1 : 0; | |
765 | ||
766 | if (i1 != i2) { // two-cathode | |
767 | ||
768 | Int_t *flags = new Int_t[npad]; | |
769 | for (Int_t i=0; i<npad; i++) { flags[i] = 0; } | |
770 | ||
771 | // Check pad overlaps | |
772 | for (Int_t i=0; i<npad; i++) { | |
773 | if (fPadIJ[0][i] != i1) continue; | |
774 | xy1[0] = fXyq[0][i] - fXyq[3][i]; | |
775 | xy1[1] = fXyq[0][i] + fXyq[3][i]; | |
776 | xy1[2] = fXyq[1][i] - fXyq[4][i]; | |
777 | xy1[3] = fXyq[1][i] + fXyq[4][i]; | |
778 | for (Int_t j=0; j<npad; j++) { | |
779 | if (fPadIJ[0][j] != i2) continue; | |
780 | if (!Overlap(xy1, j, xy12, 0)) continue; | |
781 | flags[i] = flags[j] = 1; // mark overlapped pads | |
782 | } // for (Int_t j=0; | |
783 | } // for (Int_t i=0; | |
784 | ||
785 | // Check if all pads overlap | |
786 | Int_t digit=0, cath, nFlags=0; | |
787 | for (Int_t i=0; i<npad; i++) {nFlags += !flags[i];} | |
788 | if (nFlags) cout << " nFlags = " << nFlags << endl; | |
789 | //if (nFlags > 2 || (Float_t)nFlags / npad > 0.2) { // why 2 ??? - empirical choice | |
790 | if (nFlags > 0) { | |
791 | for (Int_t i=0; i<npad; i++) { | |
792 | if (flags[i]) continue; | |
793 | digit = TMath::Nint (fXyq[5][i]); | |
794 | cath = fPadIJ[0][i]; | |
795 | fUsed[cath][digit] = kFALSE; // release pad | |
796 | fXyq[2][i] = -2; | |
797 | fnPads[cath]--; | |
798 | } | |
799 | } // if (nFlags > 2) | |
800 | ||
801 | // Check correlations of cathode charges | |
802 | if (fnPads[0] && fnPads[1]) { // two-cathode | |
803 | Double_t sum[2]={0}; | |
804 | Int_t over[2] = {1, 1}; | |
805 | for (Int_t i=0; i<npad; i++) { | |
806 | cath = fPadIJ[0][i]; | |
807 | if (fXyq[2][i] > 0) sum[cath] += fXyq[2][i]; | |
808 | if (fXyq[2][i] > fResponse->MaxAdc()-1) over[cath] = 0; | |
809 | } | |
810 | cout << " Total charge: " << sum[0] << " " << sum[1] << endl; | |
811 | if ((over[0] || over[1]) && TMath::Abs(sum[0]-sum[1])/(sum[0]+sum[1])*2 > 1) { // 3 times difference | |
812 | cout << " Release " << endl; | |
813 | // Big difference | |
814 | cath = sum[0]>sum[1] ? 0 : 1; | |
815 | Int_t imax = 0; | |
816 | Double_t cmax=-1; | |
817 | Double_t *dist = new Double_t[npad]; | |
818 | for (Int_t i=0; i<npad; i++) { | |
819 | if (fPadIJ[0][i] != cath) continue; | |
820 | if (fXyq[2][i] < cmax) continue; | |
821 | cmax = fXyq[2][i]; | |
822 | imax = i; | |
823 | } | |
824 | // Arrange pads according to their distance to the max, | |
825 | // normalized to the pad size | |
826 | for (Int_t i=0; i<npad; i++) { | |
827 | dist[i] = 0; | |
828 | if (fPadIJ[0][i] != cath) continue; | |
829 | if (i == imax) continue; | |
830 | if (fXyq[2][i] < 0) continue; | |
831 | dist[i] = (fXyq[0][i]-fXyq[0][imax])*(fXyq[0][i]-fXyq[0][imax])/ | |
832 | fXyq[3][imax]/fXyq[3][imax]/4; | |
833 | dist[i] += (fXyq[1][i]-fXyq[1][imax])*(fXyq[1][i]-fXyq[1][imax])/ | |
834 | fXyq[4][imax]/fXyq[4][imax]/4; | |
835 | dist[i] = TMath::Sqrt (dist[i]); | |
836 | } | |
837 | TMath::Sort(npad, dist, flags, kFALSE); // in increasing order | |
838 | Int_t indx; | |
839 | Double_t xmax = -1; | |
840 | for (Int_t i=0; i<npad; i++) { | |
841 | indx = flags[i]; | |
842 | if (fPadIJ[0][indx] != cath) continue; | |
843 | if (fXyq[2][indx] < 0) continue; | |
844 | if (fXyq[2][indx] <= cmax || TMath::Abs(dist[indx]-xmax)<1.e-3) { | |
845 | // Release pads | |
846 | if (TMath::Abs(dist[indx]-xmax)<1.e-3) | |
cd747ddb | 847 | cmax = TMath::Max((Double_t)(fXyq[2][indx]),cmax); |
0df3ca52 | 848 | else cmax = fXyq[2][indx]; |
849 | xmax = dist[indx]; | |
850 | digit = TMath::Nint (fXyq[5][indx]); | |
851 | fUsed[cath][digit] = kFALSE; | |
852 | fXyq[2][indx] = -2; | |
853 | fnPads[cath]--; | |
854 | // xmax = dist[i]; // Bug? | |
855 | } | |
856 | else break; | |
857 | } | |
858 | delete [] dist; dist = 0; | |
859 | } // TMath::Abs(sum[0]-sum[1])... | |
860 | } // if (fnPads[0] && fnPads[1]) | |
861 | delete [] flags; flags = 0; | |
862 | } // if (i1 != i2) | |
863 | ||
864 | if (!sameSize) { nShown[0] += fnPads[0]; nShown[1] += fnPads[1]; } | |
865 | ||
866 | // Move released pads to the right | |
867 | Int_t beg = 0, end = npad-1, padij; | |
868 | Double_t xyq; | |
869 | while (beg < end) { | |
870 | if (fXyq[2][beg] > 0) { beg++; continue; } | |
871 | for (Int_t j=end; j>beg; j--) { | |
872 | if (fXyq[2][j] < 0) continue; | |
873 | end = j - 1; | |
874 | for (Int_t j1=0; j1<2; j1++) { | |
875 | padij = fPadIJ[j1][beg]; | |
876 | fPadIJ[j1][beg] = fPadIJ[j1][j]; | |
877 | fPadIJ[j1][j] = padij; | |
878 | } | |
879 | for (Int_t j1=0; j1<6; j1++) { | |
880 | xyq = fXyq[j1][beg]; | |
881 | fXyq[j1][beg] = fXyq[j1][j]; | |
882 | fXyq[j1][j] = xyq; | |
883 | } | |
884 | break; | |
885 | } // for (Int_t j=end; | |
886 | beg++; | |
887 | } // while | |
888 | npad = fnPads[0] + fnPads[1]; | |
889 | if (npad > 500) { cout << " ***** Too large cluster. Give up. " << npad << endl; return kFALSE; } | |
890 | // Back up charge value | |
891 | for (Int_t j=0; j<npad; j++) fXyq[5][j] = fXyq[2][j]; | |
892 | ||
893 | return kTRUE; | |
894 | } | |
895 | ||
896 | //_____________________________________________________________________________ | |
897 | void AliMUONClusterFinderAZ::BuildPixArray() | |
898 | { | |
899 | // Build pixel array for MLEM method | |
900 | ||
901 | Int_t nPix=0, i1, i2; | |
902 | Float_t xy1[4], xy12[4]; | |
903 | AliMUONPixel *pixPtr=0; | |
904 | ||
905 | Int_t npad = fnPads[0] + fnPads[1]; | |
906 | ||
907 | // One cathode is empty | |
908 | i1 = fnPads[0]!=0 ? 0 : 1; | |
909 | i2 = fnPads[1]!=0 ? 1 : 0; | |
910 | ||
911 | // Build array of pixels on anode plane | |
912 | if (i1 == i2) { // one-cathode precluster | |
913 | for (Int_t j=0; j<npad; j++) { | |
914 | pixPtr = new AliMUONPixel(); | |
915 | for (Int_t i=0; i<2; i++) { | |
916 | pixPtr->SetCoord(i, fXyq[i][j]); // pixel coordinates | |
917 | pixPtr->SetSize(i, fXyq[i+3][j]); // pixel size | |
918 | } | |
919 | pixPtr->SetCharge(fXyq[2][j]); // charge | |
920 | fPixArray->Add((TObject*)pixPtr); | |
921 | nPix++; | |
922 | } | |
923 | } else { // two-cathode precluster | |
924 | for (Int_t i=0; i<npad; i++) { | |
925 | if (fPadIJ[0][i] != i1) continue; | |
926 | xy1[0] = fXyq[0][i] - fXyq[3][i]; | |
927 | xy1[1] = fXyq[0][i] + fXyq[3][i]; | |
928 | xy1[2] = fXyq[1][i] - fXyq[4][i]; | |
929 | xy1[3] = fXyq[1][i] + fXyq[4][i]; | |
930 | for (Int_t j=0; j<npad; j++) { | |
931 | if (fPadIJ[0][j] != i2) continue; | |
932 | if (!Overlap(xy1, j, xy12, 1)) continue; | |
933 | pixPtr = new AliMUONPixel(); | |
934 | for (Int_t k=0; k<2; k++) { | |
935 | pixPtr->SetCoord(k, (xy12[2*k]+xy12[2*k+1])/2); // pixel coordinates | |
936 | pixPtr->SetSize(k, xy12[2*k+1]-pixPtr->Coord(k)); // size | |
937 | } | |
938 | pixPtr->SetCharge(TMath::Min (fXyq[2][i],fXyq[2][j])); //charge | |
939 | fPixArray->Add((TObject*)pixPtr); | |
940 | nPix++; | |
941 | } // for (Int_t j=0; | |
942 | } // for (Int_t i=0; | |
943 | } // else | |
944 | ||
945 | Float_t wxmin=999, wymin=999; | |
946 | for (Int_t i=0; i<npad; i++) { | |
947 | if (fPadIJ[0][i] == i1) wymin = TMath::Min (wymin,fXyq[4][i]); | |
948 | if (fPadIJ[0][i] == i2) wxmin = TMath::Min (wxmin,fXyq[3][i]); | |
949 | } | |
950 | cout << wxmin << " " << wymin << endl; | |
951 | ||
952 | // Check if small pixel X-size | |
953 | AjustPixel(wxmin, 0); | |
954 | // Check if small pixel Y-size | |
955 | AjustPixel(wymin, 1); | |
956 | // Check if large pixel size | |
957 | AjustPixel(wxmin, wymin); | |
958 | ||
959 | // Remove discarded pixels | |
960 | for (Int_t i=0; i<nPix; i++) { | |
961 | pixPtr = (AliMUONPixel*) fPixArray->UncheckedAt(i); | |
962 | //pixPtr->Print(); | |
963 | if (pixPtr->Charge() < 1) { fPixArray->RemoveAt(i); delete pixPtr; }// discarded pixel | |
964 | } | |
965 | fPixArray->Compress(); | |
966 | nPix = fPixArray->GetEntriesFast(); | |
967 | ||
968 | if (nPix > npad) { | |
969 | cout << nPix << endl; | |
970 | // Too many pixels - sort and remove pixels with the lowest signal | |
971 | fPixArray->Sort(); | |
972 | for (Int_t i=npad; i<nPix; i++) { | |
973 | pixPtr = (AliMUONPixel*) fPixArray->UncheckedAt(i); | |
974 | //pixPtr->Print(); | |
975 | fPixArray->RemoveAt(i); | |
976 | delete pixPtr; | |
977 | } | |
978 | nPix = npad; | |
979 | } // if (nPix > npad) | |
980 | ||
981 | // Set pixel charges to the same value (for MLEM) | |
982 | for (Int_t i=0; i<nPix; i++) { | |
983 | pixPtr = (AliMUONPixel*) fPixArray->UncheckedAt(i); | |
984 | //pixPtr->SetCharge(10); | |
985 | cout << i+1 << " " << pixPtr->Coord(0) << " " << pixPtr->Coord(1) << " " << pixPtr->Size(0) << " " << pixPtr->Size(1) << endl; | |
986 | } | |
987 | } | |
988 | ||
989 | //_____________________________________________________________________________ | |
990 | void AliMUONClusterFinderAZ::AjustPixel(Float_t width, Int_t ixy) | |
991 | { | |
992 | // Check if some pixels have small size (ajust if necessary) | |
993 | ||
994 | AliMUONPixel *pixPtr, *pixPtr1 = 0; | |
995 | Int_t ixy1 = TMath::Even(ixy); | |
996 | Int_t nPix = fPixArray->GetEntriesFast(); | |
997 | ||
998 | for (Int_t i=0; i<nPix; i++) { | |
999 | pixPtr = (AliMUONPixel*) fPixArray->UncheckedAt(i); | |
1000 | if (pixPtr->Charge() < 1) continue; // discarded pixel | |
1001 | if (pixPtr->Size(ixy)-width < -1.e-4) { | |
1002 | // try to merge | |
1003 | cout << " Small X or Y: " << ixy << " " << pixPtr->Size(ixy) << " " << width << " " << pixPtr->Coord(0) << " " << pixPtr->Coord(1) << endl; | |
1004 | for (Int_t j=i+1; j<nPix; j++) { | |
1005 | pixPtr1 = (AliMUONPixel*) fPixArray->UncheckedAt(j); | |
1006 | if (pixPtr1->Charge() < 1) continue; // discarded pixel | |
1007 | if (TMath::Abs(pixPtr1->Size(ixy)-width) < 1.e-4) continue; // right size | |
1008 | if (TMath::Abs(pixPtr1->Coord(ixy1)-pixPtr->Coord(ixy1)) > 1.e-4) continue; // different rows/columns | |
1009 | if (TMath::Abs(pixPtr1->Coord(ixy)-pixPtr->Coord(ixy)) < 2*width) { | |
1010 | // merge | |
1011 | pixPtr->SetSize(ixy, width); | |
1012 | pixPtr->SetCoord(ixy, (pixPtr->Coord(ixy)+pixPtr1->Coord(ixy))/2); | |
1013 | pixPtr->SetCharge(TMath::Min (pixPtr->Charge(),pixPtr1->Charge())); | |
1014 | pixPtr1->SetCharge(0); | |
1015 | pixPtr1 = 0; | |
1016 | break; | |
1017 | } | |
1018 | } // for (Int_t j=i+1; | |
1019 | //if (!pixPtr1) { cout << " I am here!" << endl; pixPtr->SetSize(ixy, width); } // ??? | |
1020 | //else if (pixPtr1->Charge() > 0.5 || i == nPix-1) { | |
1021 | if (pixPtr1 || i == nPix-1) { | |
1022 | // edge pixel - just increase its size | |
1023 | cout << " Edge ..." << endl; | |
1024 | for (Int_t j=0; j<fnPads[0]+fnPads[1]; j++) { | |
1025 | // ???if (fPadIJ[0][j] != i1) continue; | |
1026 | if (TMath::Abs(pixPtr->Coord(ixy1)-fXyq[ixy1][j]) > 1.e-4) continue; | |
1027 | if (pixPtr->Coord(ixy) < fXyq[ixy][j]) | |
1028 | pixPtr->Shift(ixy, -pixPtr->Size(ixy)); | |
1029 | else pixPtr->Shift(ixy, pixPtr->Size(ixy)); | |
1030 | pixPtr->SetSize(ixy, width); | |
1031 | break; | |
1032 | } | |
1033 | } | |
1034 | } // if (pixPtr->Size(ixy)-width < -1.e-4) | |
1035 | } // for (Int_t i=0; i<nPix; | |
1036 | return; | |
1037 | } | |
1038 | ||
1039 | //_____________________________________________________________________________ | |
1040 | void AliMUONClusterFinderAZ::AjustPixel(Float_t wxmin, Float_t wymin) | |
1041 | { | |
1042 | // Check if some pixels have large size (ajust if necessary) | |
1043 | ||
1044 | Int_t nx, ny; | |
1045 | Int_t nPix = fPixArray->GetEntriesFast(); | |
1046 | AliMUONPixel *pixPtr, *pixPtr1, pix; | |
1047 | ||
1048 | // Check if large pixel size | |
1049 | for (Int_t i=0; i<nPix; i++) { | |
1050 | pixPtr = (AliMUONPixel*) fPixArray->UncheckedAt(i); | |
1051 | if (pixPtr->Charge() < 1) continue; // discarded pixel | |
1052 | if (pixPtr->Size(0)-wxmin > 1.e-4 || pixPtr->Size(1)-wymin > 1.e-4) { | |
1053 | cout << " Different " << pixPtr->Size(0) << " " << wxmin << " " << pixPtr->Size(1) << " " << wymin << endl; | |
1054 | pix = *pixPtr; | |
1055 | nx = TMath::Nint (pix.Size(0)/wxmin); | |
1056 | ny = TMath::Nint (pix.Size(1)/wymin); | |
1057 | pix.Shift(0, -pix.Size(0)-wxmin); | |
1058 | pix.Shift(1, -pix.Size(1)-wymin); | |
1059 | pix.SetSize(0, wxmin); | |
1060 | pix.SetSize(1, wymin); | |
1061 | for (Int_t ii=0; ii<nx; ii++) { | |
1062 | pix.Shift(0, wxmin*2); | |
1063 | for (Int_t jj=0; jj<ny; jj++) { | |
1064 | pix.Shift(1, wymin*2); | |
1065 | pixPtr1 = new AliMUONPixel(pix); | |
1066 | fPixArray->Add((TObject*)pixPtr1); | |
1067 | } | |
1068 | } | |
1069 | pixPtr->SetCharge(0); | |
1070 | } | |
1071 | } // for (Int_t i=0; i<nPix; | |
1072 | return; | |
1073 | } | |
1074 | ||
1075 | //_____________________________________________________________________________ | |
1076 | Bool_t AliMUONClusterFinderAZ::MainLoop() | |
1077 | { | |
1078 | // Repeat MLEM algorithm until pixel size becomes sufficiently small | |
1079 | ||
1080 | TH2D *mlem; | |
1081 | ||
1082 | Int_t ix, iy; | |
1083 | //Int_t nn, xList[10], yList[10]; | |
1084 | Int_t nPix = fPixArray->GetEntriesFast(); | |
1085 | Int_t npadTot = fnPads[0] + fnPads[1], npadOK = 0; | |
1086 | AliMUONPixel *pixPtr = 0; | |
1087 | Double_t *coef = 0, *probi = 0; | |
1088 | for (Int_t i=0; i<npadTot; i++) if (fPadIJ[1][i] == 0) npadOK++; | |
1089 | ||
1090 | while (1) { | |
1091 | ||
1092 | mlem = (TH2D*) gROOT->FindObject("mlem"); | |
1093 | if (mlem) mlem->Delete(); | |
1094 | // Calculate coefficients | |
1095 | cout << " nPix, npadTot, npadOK " << nPix << " " << npadTot << " " << npadOK << endl; | |
1096 | ||
1097 | // Calculate coefficients and pixel visibilities | |
1098 | coef = new Double_t [npadTot*nPix]; | |
1099 | probi = new Double_t [nPix]; | |
1100 | Int_t indx = 0, cath; | |
1101 | for (Int_t ipix=0; ipix<nPix; ipix++) { | |
1102 | pixPtr = (AliMUONPixel*) fPixArray->UncheckedAt(ipix); | |
1103 | probi[ipix] = 0; | |
1104 | for (Int_t j=0; j<npadTot; j++) { | |
1105 | if (fPadIJ[1][j] < 0) { coef[j*nPix+ipix] = 0; continue; } | |
1106 | cath = fPadIJ[0][j]; | |
1107 | fSegmentation[cath]->GetPadI(fXyq[0][j],fXyq[1][j],fZpad,ix,iy); | |
1108 | fSegmentation[cath]->SetPad(ix,iy); | |
1109 | /* | |
1110 | fSegmentation[cath]->Neighbours(ix,iy,&nn,xList,yList); | |
1111 | if (nn != 4) { | |
1112 | cout << nn << ": "; | |
1113 | for (Int_t i=0; i<nn; i++) {cout << xList[i] << " " << yList[i] << ", ";} | |
1114 | cout << endl; | |
1115 | } | |
1116 | */ | |
1117 | Double_t sum = 0; | |
1118 | fSegmentation[cath]->SetHit(pixPtr->Coord(0),pixPtr->Coord(1),fZpad); | |
1119 | sum += fResponse->IntXY(fSegmentation[cath]); | |
1120 | indx = j*nPix + ipix; | |
1121 | coef[indx] = sum; | |
1122 | probi[ipix] += coef[indx]; | |
1123 | //cout << j << " " << ipix << " " << coef[indx] << endl; | |
1124 | } // for (Int_t j=0; | |
1125 | //cout << " prob: " << probi[ipix] << endl; | |
1126 | if (probi[ipix] < 0.01) pixPtr->SetCharge(0); // "invisible" pixel | |
1127 | } // for (Int_t ipix=0; | |
1128 | ||
1129 | // MLEM algorithm | |
1130 | Mlem(coef, probi); | |
1131 | ||
cd747ddb | 1132 | Double_t xylim[4] = {999, 999, 999, 999}; |
0df3ca52 | 1133 | for (Int_t ipix=0; ipix<nPix; ipix++) { |
1134 | pixPtr = (AliMUONPixel*) fPixArray->UncheckedAt(ipix); | |
1135 | for (Int_t i=0; i<4; i++) | |
1136 | xylim[i] = TMath::Min (xylim[i], (i%2 ? -1 : 1)*pixPtr->Coord(i/2)); | |
1137 | //cout << ipix+1; pixPtr->Print(); | |
1138 | } | |
1139 | for (Int_t i=0; i<4; i++) { | |
1140 | xylim[i] -= pixPtr->Size(i/2); cout << (i%2 ? -1 : 1)*xylim[i] << " "; } | |
1141 | cout << endl; | |
1142 | ||
1143 | // Ajust histogram to approximately the same limits as for the pads | |
1144 | // (for good presentation) | |
1145 | //* | |
1146 | Float_t xypads[4]; | |
1147 | if (fHist[0]) { | |
1148 | xypads[0] = fHist[0]->GetXaxis()->GetXmin(); | |
1149 | xypads[1] = -fHist[0]->GetXaxis()->GetXmax(); | |
1150 | xypads[2] = fHist[0]->GetYaxis()->GetXmin(); | |
1151 | xypads[3] = -fHist[0]->GetYaxis()->GetXmax(); | |
1152 | for (Int_t i=0; i<4; i++) { | |
1153 | while(1) { | |
1154 | if (xylim[i] < xypads[i]) break; | |
1155 | xylim[i] -= 2*pixPtr->Size(i/2); | |
1156 | } | |
1157 | } | |
1158 | } // if (fHist[0]) | |
1159 | //*/ | |
1160 | ||
1161 | Int_t nx = TMath::Nint ((-xylim[1]-xylim[0])/pixPtr->Size(0)/2); | |
1162 | Int_t ny = TMath::Nint ((-xylim[3]-xylim[2])/pixPtr->Size(1)/2); | |
1163 | mlem = new TH2D("mlem","mlem",nx,xylim[0],-xylim[1],ny,xylim[2],-xylim[3]); | |
1164 | for (Int_t ipix=0; ipix<nPix; ipix++) { | |
1165 | pixPtr = (AliMUONPixel*) fPixArray->UncheckedAt(ipix); | |
1166 | mlem->Fill(pixPtr->Coord(0),pixPtr->Coord(1),pixPtr->Charge()); | |
1167 | } | |
1168 | //gPad->GetCanvas()->cd(3); | |
1169 | if (fDraw) { | |
1170 | ((TCanvas*)gROOT->FindObject("c2"))->cd(); | |
1171 | gPad->SetTheta(55); | |
1172 | gPad->SetPhi(30); | |
1173 | mlem->Draw("lego1Fb"); | |
1174 | gPad->Update(); | |
1175 | gets((char*)&ix); | |
1176 | } | |
1177 | ||
1178 | // Check if the total charge of pixels is too low | |
1179 | Double_t qTot = 0; | |
1180 | for (Int_t i=0; i<nPix; i++) { | |
1181 | pixPtr = (AliMUONPixel*) fPixArray->UncheckedAt(i); | |
1182 | qTot += pixPtr->Charge(); | |
1183 | } | |
1184 | if (qTot < 1.e-4 || npadOK < 3 && qTot < 50) { | |
1185 | delete [] coef; delete [] probi; coef = 0; probi = 0; | |
1186 | fPixArray->Delete(); | |
1187 | return kFALSE; | |
1188 | } | |
1189 | ||
1190 | // Plot data - expectation | |
1191 | /* | |
1192 | Double_t x, y, cont; | |
1193 | for (Int_t j=0; j<npadTot; j++) { | |
1194 | Double_t sum1 = 0; | |
1195 | for (Int_t i=0; i<nPix; i++) { | |
1196 | // Caculate expectation | |
1197 | pixPtr = (AliMUONPixel*) fPixArray->UncheckedAt(i); | |
1198 | sum1 += pixPtr->Charge()*coef[j*nPix+i]; | |
1199 | } | |
1200 | sum1 = TMath::Min (sum1,(Double_t)fResponse->MaxAdc()); | |
1201 | x = fXyq[0][j]; | |
1202 | y = fXyq[1][j]; | |
1203 | cath = fPadIJ[0][j]; | |
1204 | Int_t ihist = cath*2; | |
1205 | ix = fHist[ihist]->GetXaxis()->FindBin(x); | |
1206 | iy = fHist[ihist]->GetYaxis()->FindBin(y); | |
1207 | cont = fHist[ihist]->GetCellContent(ix,iy); | |
1208 | if (cont == 0 && fHist[ihist+1]) { | |
1209 | ihist += 1; | |
1210 | ix = fHist[ihist]->GetXaxis()->FindBin(x); | |
1211 | iy = fHist[ihist]->GetYaxis()->FindBin(y); | |
1212 | } | |
1213 | fHist[ihist]->SetBinContent(ix,iy,fXyq[2][j]-sum1); | |
1214 | } | |
1215 | ((TCanvas*)gROOT->FindObject("c1"))->cd(1); | |
1216 | //gPad->SetTheta(55); | |
1217 | //gPad->SetPhi(30); | |
1218 | //mlem->Draw("lego1"); | |
1219 | gPad->Modified(); | |
1220 | ((TCanvas*)gROOT->FindObject("c1"))->cd(2); | |
1221 | gPad->Modified(); | |
1222 | */ | |
1223 | ||
1224 | // Calculate position of the center-of-gravity around the maximum pixel | |
1225 | Double_t xyCOG[2]; | |
1226 | FindCOG(mlem, xyCOG); | |
1227 | ||
1228 | if (TMath::Min(pixPtr->Size(0),pixPtr->Size(1)) < 0.07 && pixPtr->Size(0) > pixPtr->Size(1)) break; | |
1229 | //if (TMath::Min(pixPtr->Size(0),pixPtr->Size(1)) >= 0.07 || pixPtr->Size(0) < pixPtr->Size(1)) { | |
1230 | // Sort pixels according to the charge | |
1231 | fPixArray->Sort(); | |
1232 | /* | |
1233 | for (Int_t i=0; i<nPix; i++) { | |
1234 | pixPtr = (AliMUONPixel*) fPixArray->UncheckedAt(i); | |
1235 | cout << i+1; pixPtr->Print(); | |
1236 | } | |
1237 | */ | |
1238 | Double_t pixMin = 0.01*((AliMUONPixel*)fPixArray->UncheckedAt(0))->Charge(); | |
1239 | pixMin = TMath::Min (pixMin,50.); | |
1240 | ||
1241 | // Decrease pixel size and shift pixels to make them centered at | |
1242 | // the maximum one | |
1243 | indx = (pixPtr->Size(0)>pixPtr->Size(1)) ? 0 : 1; | |
1244 | Double_t width = 0, shift[2]={0}; | |
1245 | ix = 1; | |
1246 | for (Int_t i=0; i<4; i++) xylim[i] = 999; | |
1247 | Int_t nPix1 = nPix; nPix = 0; | |
1248 | for (Int_t ipix=0; ipix<nPix1; ipix++) { | |
1249 | pixPtr = (AliMUONPixel*) fPixArray->UncheckedAt(ipix); | |
1250 | if (nPix >= npadOK) { // too many pixels already | |
1251 | fPixArray->RemoveAt(ipix); | |
1252 | delete pixPtr; | |
1253 | continue; | |
1254 | } | |
1255 | if (pixPtr->Charge() < pixMin) { // low charge | |
1256 | fPixArray->RemoveAt(ipix); | |
1257 | delete pixPtr; | |
1258 | continue; | |
1259 | } | |
1260 | for (Int_t i=0; i<2; i++) { | |
1261 | if (!i) { | |
1262 | pixPtr->SetCharge(10); | |
1263 | pixPtr->SetSize(indx, pixPtr->Size(indx)/2); | |
1264 | width = -pixPtr->Size(indx); | |
1265 | pixPtr->Shift(indx, width); | |
1266 | // Shift pixel position | |
1267 | if (ix) { | |
1268 | ix = 0; | |
1269 | for (Int_t j=0; j<2; j++) { | |
1270 | shift[j] = pixPtr->Coord(j) - xyCOG[j]; | |
1271 | shift[j] -= ((Int_t)(shift[j]/pixPtr->Size(j)/2))*pixPtr->Size(j)*2; | |
1272 | } | |
1273 | //cout << ipix << " " << i << " " << shift[0] << " " << shift[1] << endl; | |
1274 | } // if (ix) | |
1275 | pixPtr->Shift(0, -shift[0]); | |
1276 | pixPtr->Shift(1, -shift[1]); | |
1277 | } else { | |
1278 | pixPtr = new AliMUONPixel(*pixPtr); | |
1279 | pixPtr->Shift(indx, -2*width); | |
1280 | fPixArray->Add((TObject*)pixPtr); | |
1281 | } // else | |
1282 | //pixPtr->Print(); | |
1283 | for (Int_t i=0; i<4; i++) | |
1284 | xylim[i] = TMath::Min (xylim[i], (i%2 ? -1 : 1)*pixPtr->Coord(i/2)); | |
1285 | } // for (Int_t i=0; i<2; | |
1286 | nPix += 2; | |
1287 | } // for (Int_t ipix=0; | |
1288 | ||
1289 | fPixArray->Compress(); | |
1290 | nPix = fPixArray->GetEntriesFast(); | |
1291 | ||
1292 | // Remove excessive pixels | |
1293 | if (nPix > npadOK) { | |
1294 | for (Int_t ipix=npadOK; ipix<nPix; ipix++) { | |
1295 | pixPtr = (AliMUONPixel*) fPixArray->UncheckedAt(ipix); | |
1296 | fPixArray->RemoveAt(ipix); | |
1297 | delete pixPtr; | |
1298 | } | |
1299 | } else { | |
1300 | pixPtr = (AliMUONPixel*) fPixArray->UncheckedAt(0); | |
1301 | // add pixels if the maximum is at the limit of pixel area | |
1302 | // start from Y-direction | |
1303 | Int_t j = 0; | |
1304 | for (Int_t i=3; i>-1; i--) { | |
1305 | if (nPix < npadOK && | |
1306 | TMath::Abs((i%2 ? -1 : 1)*xylim[i]-xyCOG[i/2]) < pixPtr->Size(i/2)) { | |
1307 | pixPtr = new AliMUONPixel(*pixPtr); | |
1308 | pixPtr->SetCoord(i/2, xyCOG[i/2]+(i%2 ? 2:-2)*pixPtr->Size(i/2)); | |
1309 | j = TMath::Even (i/2); | |
1310 | pixPtr->SetCoord(j, xyCOG[j]); | |
1311 | fPixArray->Add((TObject*)pixPtr); | |
1312 | nPix++; | |
1313 | } | |
1314 | } | |
1315 | } // else | |
1316 | ||
1317 | fPixArray->Compress(); | |
1318 | nPix = fPixArray->GetEntriesFast(); | |
1319 | delete [] coef; delete [] probi; coef = 0; probi = 0; | |
1320 | } // while (1) | |
1321 | ||
1322 | // remove pixels with low signal or low visibility | |
1323 | // Cuts are empirical !!! | |
1324 | Double_t thresh = TMath::Max (mlem->GetMaximum()/100.,1.); | |
1325 | thresh = TMath::Min (thresh,50.); | |
1326 | Double_t cmax = -1, charge = 0; | |
1327 | for (Int_t i=0; i<nPix; i++) cmax = TMath::Max (cmax,probi[i]); | |
1328 | // Mark pixels which should be removed | |
1329 | for (Int_t i=0; i<nPix; i++) { | |
1330 | pixPtr = (AliMUONPixel*) fPixArray->UncheckedAt(i); | |
1331 | charge = pixPtr->Charge(); | |
1332 | if (charge < thresh) pixPtr->SetCharge(-charge); | |
1333 | else if (cmax > 1.91) { | |
1334 | if (probi[i] < 1.9) pixPtr->SetCharge(-charge); | |
1335 | } | |
1336 | else if (probi[i] < cmax*0.9) pixPtr->SetCharge(-charge); | |
1337 | } | |
1338 | // Move charge of removed pixels to their nearest neighbour (to keep total charge the same) | |
1339 | Int_t near = 0; | |
1340 | for (Int_t i=0; i<nPix; i++) { | |
1341 | pixPtr = (AliMUONPixel*) fPixArray->UncheckedAt(i); | |
1342 | charge = pixPtr->Charge(); | |
1343 | if (charge > 0) continue; | |
1344 | near = FindNearest(pixPtr); | |
1345 | pixPtr->SetCharge(0); | |
1346 | pixPtr = (AliMUONPixel*) fPixArray->UncheckedAt(near); | |
1347 | pixPtr->SetCharge(pixPtr->Charge() - charge); | |
1348 | } | |
1349 | // Update histogram | |
1350 | for (Int_t i=0; i<nPix; i++) { | |
1351 | pixPtr = (AliMUONPixel*) fPixArray->UncheckedAt(i); | |
1352 | ix = mlem->GetXaxis()->FindBin(pixPtr->Coord(0)); | |
1353 | iy = mlem->GetYaxis()->FindBin(pixPtr->Coord(1)); | |
1354 | mlem->SetBinContent(ix, iy, pixPtr->Charge()); | |
1355 | } | |
1356 | if (fDraw) { | |
1357 | ((TCanvas*)gROOT->FindObject("c2"))->cd(); | |
1358 | gPad->SetTheta(55); | |
1359 | gPad->SetPhi(30); | |
1360 | mlem->Draw("lego1Fb"); | |
1361 | gPad->Update(); | |
1362 | } | |
1363 | ||
1364 | fxyMu[0][6] = fxyMu[1][6] = 9999; | |
1365 | // Try to split into clusters | |
1366 | Bool_t ok = kTRUE; | |
1367 | if (mlem->GetSum() < 1) ok = kFALSE; | |
1368 | else Split(mlem, coef); | |
1369 | delete [] coef; delete [] probi; coef = 0; probi = 0; | |
1370 | fPixArray->Delete(); | |
1371 | return ok; | |
1372 | } | |
1373 | ||
1374 | //_____________________________________________________________________________ | |
1375 | void AliMUONClusterFinderAZ::Mlem(Double_t *coef, Double_t *probi) | |
1376 | { | |
1377 | // Use MLEM to find pixel charges | |
1378 | ||
1379 | Int_t nPix = fPixArray->GetEntriesFast(); | |
1380 | Int_t npad = fnPads[0] + fnPads[1]; | |
1381 | Double_t *probi1 = new Double_t [nPix]; | |
1382 | Int_t indx, indx1; | |
1383 | AliMUONPixel *pixPtr; | |
1384 | ||
1385 | for (Int_t iter=0; iter<15; iter++) { | |
1386 | // Do iterations | |
1387 | for (Int_t ipix=0; ipix<nPix; ipix++) { | |
1388 | // Correct each pixel | |
1389 | if (probi[ipix] < 0.01) continue; // skip "invisible" pixel | |
1390 | Double_t sum = 0; | |
1391 | probi1[ipix] = probi[ipix]; | |
1392 | for (Int_t j=0; j<npad; j++) { | |
1393 | if (fPadIJ[1][j] < 0) continue; | |
1394 | Double_t sum1 = 0; | |
1395 | indx1 = j*nPix; | |
1396 | indx = indx1 + ipix; | |
1397 | for (Int_t i=0; i<nPix; i++) { | |
1398 | // Caculate expectation | |
1399 | pixPtr = (AliMUONPixel*) fPixArray->UncheckedAt(i); | |
1400 | sum1 += pixPtr->Charge()*coef[indx1+i]; | |
1401 | } // for (Int_t i=0; | |
1402 | if (fXyq[2][j] > fResponse->MaxAdc()-1 && sum1 > fResponse->MaxAdc()) { probi1[ipix] -= coef[indx]; continue; } // correct for pad charge overflows | |
1403 | //cout << sum1 << " " << fXyq[2][j] << " " << coef[j*nPix+ipix] << endl; | |
1404 | if (coef[indx] > 1.e-6) sum += fXyq[2][j]*coef[indx]/sum1; | |
1405 | } // for (Int_t j=0; | |
1406 | pixPtr = (AliMUONPixel*) fPixArray->UncheckedAt(ipix); | |
1407 | if (probi1[ipix] > 1.e-6) pixPtr->SetCharge(pixPtr->Charge()*sum/probi1[ipix]); | |
1408 | } // for (Int_t ipix=0; | |
1409 | } // for (Int_t iter=0; | |
1410 | delete [] probi1; | |
1411 | return; | |
1412 | } | |
1413 | ||
1414 | //_____________________________________________________________________________ | |
1415 | void AliMUONClusterFinderAZ::FindCOG(TH2D *mlem, Double_t *xyc) | |
1416 | { | |
1417 | // Calculate position of the center-of-gravity around the maximum pixel | |
1418 | ||
1419 | Int_t ixmax, iymax, ix, nsumx=0, nsumy=0, nsum=0; | |
1420 | Int_t i1 = -9, j1 = -9; | |
1421 | mlem->GetMaximumBin(ixmax,iymax,ix); | |
1422 | Int_t nx = mlem->GetNbinsX(); | |
1423 | Int_t ny = mlem->GetNbinsY(); | |
1424 | Double_t thresh = mlem->GetMaximum()/10; | |
1425 | Double_t x, y, cont, xq=0, yq=0, qq=0; | |
1426 | ||
1427 | for (Int_t i=TMath::Max(1,iymax-1); i<=TMath::Min(ny,iymax+1); i++) { | |
1428 | y = mlem->GetYaxis()->GetBinCenter(i); | |
1429 | for (Int_t j=TMath::Max(1,ixmax-1); j<=TMath::Min(nx,ixmax+1); j++) { | |
1430 | cont = mlem->GetCellContent(j,i); | |
1431 | if (cont < thresh) continue; | |
1432 | if (i != i1) {i1 = i; nsumy++;} | |
1433 | if (j != j1) {j1 = j; nsumx++;} | |
1434 | x = mlem->GetXaxis()->GetBinCenter(j); | |
1435 | xq += x*cont; | |
1436 | yq += y*cont; | |
1437 | qq += cont; | |
1438 | nsum++; | |
1439 | } | |
1440 | } | |
1441 | ||
1442 | Double_t cmax = 0; | |
1443 | Int_t i2 = 0, j2 = 0; | |
1444 | x = y = 0; | |
1445 | if (nsumy == 1) { | |
1446 | // one bin in Y - add one more (with the largest signal) | |
1447 | for (Int_t i=TMath::Max(1,iymax-1); i<=TMath::Min(ny,iymax+1); i++) { | |
1448 | if (i == iymax) continue; | |
1449 | for (Int_t j=TMath::Max(1,ixmax-1); j<=TMath::Min(nx,ixmax+1); j++) { | |
1450 | cont = mlem->GetCellContent(j,i); | |
1451 | if (cont > cmax) { | |
1452 | cmax = cont; | |
1453 | x = mlem->GetXaxis()->GetBinCenter(j); | |
1454 | y = mlem->GetYaxis()->GetBinCenter(i); | |
1455 | i2 = i; | |
1456 | j2 = j; | |
1457 | } | |
1458 | } | |
1459 | } | |
1460 | xq += x*cmax; | |
1461 | yq += y*cmax; | |
1462 | qq += cmax; | |
1463 | if (i2 != i1) nsumy++; | |
1464 | if (j2 != j1) nsumx++; | |
1465 | nsum++; | |
1466 | } // if (nsumy == 1) | |
1467 | ||
1468 | if (nsumx == 1) { | |
1469 | // one bin in X - add one more (with the largest signal) | |
1470 | cmax = x = y = 0; | |
1471 | for (Int_t j=TMath::Max(1,ixmax-1); j<=TMath::Min(nx,ixmax+1); j++) { | |
1472 | if (j == ixmax) continue; | |
1473 | for (Int_t i=TMath::Max(1,iymax-1); i<=TMath::Min(ny,iymax+1); i++) { | |
1474 | cont = mlem->GetCellContent(j,i); | |
1475 | if (cont > cmax) { | |
1476 | cmax = cont; | |
1477 | x = mlem->GetXaxis()->GetBinCenter(j); | |
1478 | y = mlem->GetYaxis()->GetBinCenter(i); | |
1479 | i2 = i; | |
1480 | j2 = j; | |
1481 | } | |
1482 | } | |
1483 | } | |
1484 | xq += x*cmax; | |
1485 | yq += y*cmax; | |
1486 | qq += cmax; | |
1487 | if (i2 != i1) nsumy++; | |
1488 | if (j2 != j1) nsumx++; | |
1489 | nsum++; | |
1490 | } // if (nsumx == 1) | |
1491 | ||
1492 | xyc[0] = xq/qq; xyc[1] = yq/qq; | |
1493 | cout << xyc[0] << " " << xyc[1] << " " << qq << " " << nsum << " " << nsumx << " " << nsumy << endl; | |
1494 | return; | |
1495 | } | |
1496 | ||
1497 | //_____________________________________________________________________________ | |
1498 | Int_t AliMUONClusterFinderAZ::FindNearest(AliMUONPixel *pixPtr0) | |
1499 | { | |
1500 | // Find the pixel nearest to the given one | |
1501 | // (algorithm may be not very efficient) | |
1502 | ||
1503 | Int_t nPix = fPixArray->GetEntriesFast(), imin = 0; | |
1504 | Double_t rmin = 99999, dx = 0, dy = 0, r = 0; | |
1505 | Double_t xc = pixPtr0->Coord(0), yc = pixPtr0->Coord(1); | |
1506 | AliMUONPixel *pixPtr; | |
1507 | ||
1508 | for (Int_t i=0; i<nPix; i++) { | |
1509 | pixPtr = (AliMUONPixel*) fPixArray->UncheckedAt(i); | |
1510 | if (pixPtr->Charge() < 0.5) continue; | |
1511 | dx = (xc - pixPtr->Coord(0)) / pixPtr->Size(0); | |
1512 | dy = (yc - pixPtr->Coord(1)) / pixPtr->Size(1); | |
1513 | r = dx *dx + dy * dy; | |
1514 | if (r < rmin) { rmin = r; imin = i; } | |
1515 | } | |
1516 | return imin; | |
1517 | } | |
1518 | ||
1519 | //_____________________________________________________________________________ | |
1520 | void AliMUONClusterFinderAZ::Split(TH2D *mlem, Double_t *coef) | |
1521 | { | |
1522 | // The main steering function to work with clusters of pixels in anode | |
1523 | // plane (find clusters, decouple them from each other, merge them (if | |
1524 | // necessary), pick up coupled pads, call the fitting function) | |
1525 | ||
1526 | Int_t nx = mlem->GetNbinsX(); | |
1527 | Int_t ny = mlem->GetNbinsY(); | |
1528 | Int_t nPix = fPixArray->GetEntriesFast(); | |
1529 | ||
1530 | Bool_t *used = new Bool_t[ny*nx]; | |
1531 | Double_t cont; | |
1532 | Int_t nclust = 0, indx, indx1; | |
1533 | ||
1534 | for (Int_t i=0; i<ny*nx; i++) used[i] = kFALSE; | |
1535 | ||
1536 | TObjArray *clusters[200]={0}; | |
1537 | TObjArray *pix; | |
1538 | ||
1539 | // Find clusters of histogram bins (easier to work in 2-D space) | |
1540 | for (Int_t i=1; i<=ny; i++) { | |
1541 | for (Int_t j=1; j<=nx; j++) { | |
1542 | indx = (i-1)*nx + j - 1; | |
1543 | if (used[indx]) continue; | |
1544 | cont = mlem->GetCellContent(j,i); | |
1545 | if (cont < 0.5) continue; | |
1546 | pix = new TObjArray(20); | |
1547 | used[indx] = 1; | |
1548 | pix->Add(BinToPix(mlem,j,i)); | |
1549 | AddBin(mlem, i, j, 0, used, pix); // recursive call | |
1550 | clusters[nclust++] = pix; | |
1551 | if (nclust > 200) { cout << " Too many clusters " << endl; ::exit(0); } | |
1552 | } // for (Int_t j=1; j<=nx; j++) { | |
1553 | } // for (Int_t i=1; i<=ny; | |
1554 | cout << nclust << endl; | |
1555 | delete [] used; used = 0; | |
1556 | ||
1557 | // Compute couplings between clusters and clusters to pads | |
1558 | Int_t npad = fnPads[0] + fnPads[1]; | |
1559 | ||
1560 | // Exclude pads with overflows | |
1561 | for (Int_t j=0; j<npad; j++) { | |
1562 | if (fXyq[2][j] > fResponse->MaxAdc()-1) fPadIJ[1][j] = -9; | |
1563 | else fPadIJ[1][j] = 0; | |
1564 | } | |
1565 | ||
1566 | // Compute couplings of clusters to pads | |
1567 | TMatrixD *aij_clu_pad = new TMatrixD(nclust,npad); | |
1568 | *aij_clu_pad = 0; | |
1569 | Int_t npxclu; | |
1570 | for (Int_t iclust=0; iclust<nclust; iclust++) { | |
1571 | pix = clusters[iclust]; | |
1572 | npxclu = pix->GetEntriesFast(); | |
1573 | for (Int_t i=0; i<npxclu; i++) { | |
1574 | indx = fPixArray->IndexOf(pix->UncheckedAt(i)); | |
1575 | for (Int_t j=0; j<npad; j++) { | |
1576 | // Exclude overflows | |
1577 | if (fPadIJ[1][j] < 0) continue; | |
1578 | if (coef[j*nPix+indx] < kCouplMin) continue; | |
1579 | (*aij_clu_pad)(iclust,j) += coef[j*nPix+indx]; | |
1580 | } | |
1581 | } | |
1582 | } | |
1583 | // Compute couplings between clusters | |
1584 | TMatrixD *aij_clu_clu = new TMatrixD(nclust,nclust); | |
1585 | *aij_clu_clu = 0; | |
1586 | for (Int_t iclust=0; iclust<nclust; iclust++) { | |
1587 | for (Int_t j=0; j<npad; j++) { | |
1588 | // Exclude overflows | |
1589 | if (fPadIJ[1][j] < 0) continue; | |
1590 | if ((*aij_clu_pad)(iclust,j) < kCouplMin) continue; | |
1591 | for (Int_t iclust1=iclust+1; iclust1<nclust; iclust1++) { | |
1592 | if ((*aij_clu_pad)(iclust1,j) < kCouplMin) continue; | |
1593 | (*aij_clu_clu)(iclust,iclust1) += | |
1594 | TMath::Sqrt ((*aij_clu_pad)(iclust,j)*(*aij_clu_pad)(iclust1,j)); | |
1595 | } | |
1596 | } | |
1597 | } | |
1598 | for (Int_t iclust=0; iclust<nclust; iclust++) { | |
1599 | for (Int_t iclust1=iclust+1; iclust1<nclust; iclust1++) { | |
1600 | (*aij_clu_clu)(iclust1,iclust) = (*aij_clu_clu)(iclust,iclust1); | |
1601 | } | |
1602 | } | |
1603 | ||
1604 | if (nclust > 1) aij_clu_clu->Print(); | |
1605 | ||
1606 | // Find groups of coupled clusters | |
1607 | used = new Bool_t[nclust]; | |
1608 | for (Int_t i=0; i<nclust; i++) used[i] = kFALSE; | |
1609 | Int_t *clustNumb = new Int_t[nclust]; | |
1610 | Int_t nCoupled, nForFit, minGroup[3], clustFit[3], nfit = 0; | |
1611 | Double_t parOk[8]; | |
1612 | ||
1613 | for (Int_t igroup=0; igroup<nclust; igroup++) { | |
1614 | if (used[igroup]) continue; | |
1615 | used[igroup] = kTRUE; | |
1616 | clustNumb[0] = igroup; | |
1617 | nCoupled = 1; | |
1618 | // Find group of coupled clusters | |
1619 | AddCluster(igroup, nclust, aij_clu_clu, used, clustNumb, nCoupled); // recursive | |
1620 | cout << " nCoupled: " << nCoupled << endl; | |
1621 | for (Int_t i=0; i<nCoupled; i++) cout << clustNumb[i] << " "; cout << endl; | |
1622 | ||
1623 | while (nCoupled > 0) { | |
1624 | ||
1625 | if (nCoupled < 4) { | |
1626 | nForFit = nCoupled; | |
1627 | for (Int_t i=0; i<nCoupled; i++) clustFit[i] = clustNumb[i]; | |
1628 | } else { | |
1629 | // Too many coupled clusters to fit - try to decouple them | |
1630 | // Find the lowest coupling of 1, 2, min(3,nLinks/2) pixels with | |
1631 | // all the others in the group | |
1632 | for (Int_t j=0; j<3; j++) minGroup[j] = -1; | |
1633 | Double_t coupl = MinGroupCoupl(nCoupled, clustNumb, aij_clu_clu, minGroup); | |
1634 | ||
1635 | // Flag clusters for fit | |
1636 | nForFit = 0; | |
1637 | while (minGroup[nForFit] >= 0 && nForFit < 3) { | |
1638 | cout << clustNumb[minGroup[nForFit]] << " "; | |
1639 | clustFit[nForFit] = clustNumb[minGroup[nForFit]]; | |
1640 | clustNumb[minGroup[nForFit]] -= 999; | |
1641 | nForFit++; | |
1642 | } | |
1643 | cout << nForFit << " " << coupl << endl; | |
1644 | } // else | |
1645 | ||
1646 | // Select pads for fit. | |
1647 | if (SelectPad(nCoupled, nForFit, clustNumb, clustFit, aij_clu_pad) < 3 && nCoupled > 1) { | |
1648 | // Deselect pads | |
1649 | for (Int_t j=0; j<npad; j++) if (TMath::Abs(fPadIJ[1][j]) == 1) fPadIJ[1][j] = 0; | |
1650 | // Merge the failed cluster candidates (with too few pads to fit) with | |
1651 | // the one with the strongest coupling | |
1652 | Merge(nForFit, nCoupled, clustNumb, clustFit, clusters, aij_clu_clu, aij_clu_pad); | |
1653 | } else { | |
1654 | // Do the fit | |
1655 | nfit = Fit(nForFit, clustFit, clusters, parOk); | |
1656 | } | |
1657 | ||
1658 | // Subtract the fitted charges from pads with strong coupling and/or | |
1659 | // return pads for further use | |
1660 | UpdatePads(nfit, parOk); | |
1661 | ||
1662 | // Mark used pads | |
1663 | for (Int_t j=0; j<npad; j++) {if (fPadIJ[1][j] == 1) fPadIJ[1][j] = -1;} | |
1664 | ||
1665 | // Sort the clusters (move to the right the used ones) | |
1666 | Int_t beg = 0, end = nCoupled - 1; | |
1667 | while (beg < end) { | |
1668 | if (clustNumb[beg] >= 0) { beg++; continue; } | |
1669 | for (Int_t j=end; j>beg; j--) { | |
1670 | if (clustNumb[j] < 0) continue; | |
1671 | end = j - 1; | |
1672 | indx = clustNumb[beg]; | |
1673 | clustNumb[beg] = clustNumb[j]; | |
1674 | clustNumb[j] = indx; | |
1675 | break; | |
1676 | } | |
1677 | beg++; | |
1678 | } | |
1679 | ||
1680 | nCoupled -= nForFit; | |
1681 | if (nCoupled > 3) { | |
1682 | // Remove couplings of used clusters | |
1683 | for (Int_t iclust=nCoupled; iclust<nCoupled+nForFit; iclust++) { | |
1684 | indx = clustNumb[iclust] + 999; | |
1685 | for (Int_t iclust1=0; iclust1<nCoupled; iclust1++) { | |
1686 | indx1 = clustNumb[iclust1]; | |
1687 | (*aij_clu_clu)(indx,indx1) = (*aij_clu_clu)(indx1,indx) = 0; | |
1688 | } | |
1689 | } | |
1690 | ||
1691 | // Update the remaining clusters couplings (exclude couplings from | |
1692 | // the used pads) | |
1693 | for (Int_t j=0; j<npad; j++) { | |
1694 | if (fPadIJ[1][j] != -1) continue; | |
1695 | for (Int_t iclust=0; iclust<nCoupled; iclust++) { | |
1696 | indx = clustNumb[iclust]; | |
1697 | if ((*aij_clu_pad)(indx,j) < kCouplMin) continue; | |
1698 | for (Int_t iclust1=iclust+1; iclust1<nCoupled; iclust1++) { | |
1699 | indx1 = clustNumb[iclust1]; | |
1700 | if ((*aij_clu_pad)(indx1,j) < kCouplMin) continue; | |
1701 | // Check this | |
1702 | (*aij_clu_clu)(indx,indx1) -= | |
1703 | TMath::Sqrt ((*aij_clu_pad)(indx,j)*(*aij_clu_pad)(indx1,j)); | |
1704 | (*aij_clu_clu)(indx1,indx) = (*aij_clu_clu)(indx,indx1); | |
1705 | } | |
1706 | } | |
1707 | fPadIJ[1][j] = -9; | |
1708 | } // for (Int_t j=0; j<npad; | |
1709 | } // if (nCoupled > 3) | |
1710 | } // while (nCoupled > 0) | |
1711 | } // for (Int_t igroup=0; igroup<nclust; | |
1712 | ||
1713 | //delete aij_clu; aij_clu = 0; delete aij_clu_pad; aij_clu_pad = 0; | |
1714 | aij_clu_clu->Delete(); aij_clu_pad->Delete(); | |
1715 | for (Int_t iclust=0; iclust<nclust; iclust++) { | |
1716 | pix = clusters[iclust]; | |
1717 | pix->Clear(); | |
1718 | delete pix; pix = 0; | |
1719 | } | |
1720 | delete [] clustNumb; clustNumb = 0; delete [] used; used = 0; | |
1721 | } | |
1722 | ||
1723 | //_____________________________________________________________________________ | |
1724 | void AliMUONClusterFinderAZ::AddBin(TH2D *mlem, Int_t ic, Int_t jc, Int_t mode, Bool_t *used, TObjArray *pix) | |
1725 | { | |
1726 | // Add a bin to the cluster | |
1727 | ||
1728 | Int_t nx = mlem->GetNbinsX(); | |
1729 | Int_t ny = mlem->GetNbinsY(); | |
1730 | Double_t cont1, cont = mlem->GetCellContent(jc,ic); | |
1731 | AliMUONPixel *pixPtr = 0; | |
1732 | ||
1733 | for (Int_t i=TMath::Max(ic-1,1); i<=TMath::Min(ic+1,ny); i++) { | |
1734 | for (Int_t j=TMath::Max(jc-1,1); j<=TMath::Min(jc+1,nx); j++) { | |
1735 | if (i != ic && j != jc) continue; | |
1736 | if (used[(i-1)*nx+j-1]) continue; | |
1737 | cont1 = mlem->GetCellContent(j,i); | |
1738 | if (mode && cont1 > cont) continue; | |
1739 | used[(i-1)*nx+j-1] = kTRUE; | |
1740 | if (cont1 < 0.5) continue; | |
1741 | if (pix) pix->Add(BinToPix(mlem,j,i)); | |
1742 | else { | |
1743 | pixPtr = new AliMUONPixel (mlem->GetXaxis()->GetBinCenter(j), | |
1744 | mlem->GetYaxis()->GetBinCenter(i), 0, 0, cont1); | |
1745 | fPixArray->Add((TObject*)pixPtr); | |
1746 | } | |
1747 | AddBin(mlem, i, j, mode, used, pix); // recursive call | |
1748 | } | |
1749 | } | |
1750 | } | |
1751 | ||
1752 | //_____________________________________________________________________________ | |
1753 | TObject* AliMUONClusterFinderAZ::BinToPix(TH2D *mlem, Int_t jc, Int_t ic) | |
1754 | { | |
1755 | // Translate histogram bin to pixel | |
1756 | ||
1757 | Double_t yc = mlem->GetYaxis()->GetBinCenter(ic); | |
1758 | Double_t xc = mlem->GetXaxis()->GetBinCenter(jc); | |
1759 | ||
1760 | Int_t nPix = fPixArray->GetEntriesFast(); | |
1761 | AliMUONPixel *pixPtr; | |
1762 | ||
1763 | // Compare pixel and bin positions | |
1764 | for (Int_t i=0; i<nPix; i++) { | |
1765 | pixPtr = (AliMUONPixel*) fPixArray->UncheckedAt(i); | |
1766 | if (pixPtr->Charge() < 0.5) continue; | |
1767 | if (TMath::Abs(pixPtr->Coord(0)-xc)<1.e-4 && TMath::Abs(pixPtr->Coord(1)-yc)<1.e-4) return (TObject*) pixPtr; | |
1768 | } | |
1769 | cout << " Something wrong ??? " << endl; | |
1770 | return NULL; | |
1771 | } | |
1772 | ||
1773 | //_____________________________________________________________________________ | |
1774 | void AliMUONClusterFinderAZ::AddCluster(Int_t ic, Int_t nclust, TMatrixD *aij_clu_clu, Bool_t *used, Int_t *clustNumb, Int_t &nCoupled) | |
1775 | { | |
1776 | // Add a cluster to the group of coupled clusters | |
1777 | ||
1778 | for (Int_t i=0; i<nclust; i++) { | |
1779 | if (used[i]) continue; | |
1780 | if ((*aij_clu_clu)(i,ic) < kCouplMin) continue; | |
1781 | used[i] = kTRUE; | |
1782 | clustNumb[nCoupled++] = i; | |
1783 | AddCluster(i, nclust, aij_clu_clu, used, clustNumb, nCoupled); | |
1784 | } | |
1785 | } | |
1786 | ||
1787 | //_____________________________________________________________________________ | |
1788 | Double_t AliMUONClusterFinderAZ::MinGroupCoupl(Int_t nCoupled, Int_t *clustNumb, TMatrixD *aij_clu_clu, Int_t *minGroup) | |
1789 | { | |
1790 | // Find group of clusters with minimum coupling to all the others | |
1791 | ||
1792 | Int_t i123max = TMath::Min(3,nCoupled/2); | |
1793 | Int_t indx, indx1, indx2, indx3, nTot = 0; | |
1794 | Double_t *coupl1 = 0, *coupl2 = 0, *coupl3 = 0; | |
1795 | ||
1796 | for (Int_t i123=1; i123<=i123max; i123++) { | |
1797 | ||
1798 | if (i123 == 1) { | |
1799 | coupl1 = new Double_t [nCoupled]; | |
1800 | for (Int_t i=0; i<nCoupled; i++) coupl1[i] = 0; | |
1801 | } | |
1802 | else if (i123 == 2) { | |
1803 | nTot = nCoupled*nCoupled; | |
1804 | coupl2 = new Double_t [nTot]; | |
1805 | for (Int_t i=0; i<nTot; i++) coupl2[i] = 9999; | |
1806 | } else { | |
1807 | nTot = nTot*nCoupled; | |
1808 | coupl3 = new Double_t [nTot]; | |
1809 | for (Int_t i=0; i<nTot; i++) coupl3[i] = 9999; | |
1810 | } // else | |
1811 | ||
1812 | for (Int_t i=0; i<nCoupled; i++) { | |
1813 | indx1 = clustNumb[i]; | |
1814 | for (Int_t j=i+1; j<nCoupled; j++) { | |
1815 | indx2 = clustNumb[j]; | |
1816 | if (i123 == 1) { | |
1817 | coupl1[i] += (*aij_clu_clu)(indx1,indx2); | |
1818 | coupl1[j] += (*aij_clu_clu)(indx1,indx2); | |
1819 | } | |
1820 | else if (i123 == 2) { | |
1821 | indx = i*nCoupled + j; | |
1822 | coupl2[indx] = coupl1[i] + coupl1[j]; | |
1823 | coupl2[indx] -= 2 * ((*aij_clu_clu)(indx1,indx2)); | |
1824 | } else { | |
1825 | for (Int_t k=j+1; k<nCoupled; k++) { | |
1826 | indx3 = clustNumb[k]; | |
1827 | indx = i*nCoupled*nCoupled + j*nCoupled + k; | |
1828 | coupl3[indx] = coupl2[i*nCoupled+j] + coupl1[k]; | |
1829 | coupl3[indx] -= 2 * ((*aij_clu_clu)(indx1,indx3)+(*aij_clu_clu)(indx2,indx3)); | |
1830 | } | |
1831 | } // else | |
1832 | } // for (Int_t j=i+1; | |
1833 | } // for (Int_t i=0; | |
1834 | } // for (Int_t i123=1; | |
1835 | ||
1836 | // Find minimum coupling | |
1837 | Double_t couplMin = 9999; | |
1838 | Int_t locMin = 0; | |
1839 | ||
1840 | for (Int_t i123=1; i123<=i123max; i123++) { | |
1841 | if (i123 == 1) { | |
1842 | locMin = TMath::LocMin(nCoupled, coupl1); | |
1843 | couplMin = coupl1[locMin]; | |
1844 | minGroup[0] = locMin; | |
1845 | delete [] coupl1; coupl1 = 0; | |
1846 | } | |
1847 | else if (i123 == 2) { | |
1848 | locMin = TMath::LocMin(nCoupled*nCoupled, coupl2); | |
1849 | if (coupl2[locMin] < couplMin) { | |
1850 | couplMin = coupl2[locMin]; | |
1851 | minGroup[0] = locMin/nCoupled; | |
1852 | minGroup[1] = locMin%nCoupled; | |
1853 | } | |
1854 | delete [] coupl2; coupl2 = 0; | |
1855 | } else { | |
1856 | locMin = TMath::LocMin(nTot, coupl3); | |
1857 | if (coupl3[locMin] < couplMin) { | |
1858 | couplMin = coupl3[locMin]; | |
1859 | minGroup[0] = locMin/nCoupled/nCoupled; | |
1860 | minGroup[1] = locMin%(nCoupled*nCoupled)/nCoupled; | |
1861 | minGroup[2] = locMin%nCoupled; | |
1862 | } | |
1863 | delete [] coupl3; coupl3 = 0; | |
1864 | } // else | |
1865 | } // for (Int_t i123=1; | |
1866 | return couplMin; | |
1867 | } | |
1868 | ||
1869 | //_____________________________________________________________________________ | |
1870 | Int_t AliMUONClusterFinderAZ::SelectPad(Int_t nCoupled, Int_t nForFit, Int_t *clustNumb, Int_t *clustFit, TMatrixD *aij_clu_pad) | |
1871 | { | |
1872 | // Select pads for fit. If too many coupled clusters, find pads giving | |
1873 | // the strongest coupling with the rest of clusters and exclude them from the fit. | |
1874 | ||
1875 | Int_t npad = fnPads[0] + fnPads[1]; | |
1876 | Double_t *pad_pix = 0; | |
1877 | ||
1878 | if (nCoupled > 3) { | |
1879 | pad_pix = new Double_t[npad]; | |
1880 | for (Int_t i=0; i<npad; i++) pad_pix[i] = 0; | |
1881 | } | |
1882 | ||
1883 | Int_t nOK = 0, indx, indx1; | |
1884 | for (Int_t iclust=0; iclust<nForFit; iclust++) { | |
1885 | indx = clustFit[iclust]; | |
1886 | for (Int_t j=0; j<npad; j++) { | |
1887 | if (fPadIJ[1][j] < 0) continue; // exclude overflows and used pads | |
1888 | if ((*aij_clu_pad)(indx,j) < kCouplMin) continue; | |
1889 | fPadIJ[1][j] = 1; // pad to be used in fit | |
1890 | nOK++; | |
1891 | if (nCoupled > 3) { | |
1892 | // Check other clusters | |
1893 | for (Int_t iclust1=0; iclust1<nCoupled; iclust1++) { | |
1894 | indx1 = clustNumb[iclust1]; | |
1895 | if (indx1 < 0) continue; | |
1896 | if ((*aij_clu_pad)(indx1,j) < kCouplMin) continue; | |
1897 | pad_pix[j] += (*aij_clu_pad)(indx1,j); | |
1898 | } | |
1899 | } // if (nCoupled > 3) | |
1900 | } // for (Int_t j=0; j<npad; | |
1901 | } // for (Int_t iclust=0; iclust<nForFit | |
1902 | if (nCoupled < 4) return nOK; | |
1903 | ||
1904 | Double_t aaa = 0; | |
1905 | for (Int_t j=0; j<npad; j++) { | |
1906 | if (pad_pix[j] < kCouplMin) continue; | |
1907 | cout << j << " " << pad_pix[j] << " "; | |
1908 | cout << fXyq[0][j] << " " << fXyq[1][j] << endl; | |
1909 | aaa += pad_pix[j]; | |
1910 | fPadIJ[1][j] = -1; // exclude pads with strong coupling to the other clusters | |
1911 | nOK--; | |
1912 | } | |
1913 | delete [] pad_pix; pad_pix = 0; | |
1914 | return nOK; | |
1915 | } | |
1916 | ||
1917 | //_____________________________________________________________________________ | |
1918 | void AliMUONClusterFinderAZ::Merge(Int_t nForFit, Int_t nCoupled, Int_t *clustNumb, Int_t *clustFit, TObjArray **clusters, TMatrixD *aij_clu_clu, TMatrixD *aij_clu_pad) | |
1919 | { | |
1920 | // Merge the group of clusters with the one having the strongest coupling with them | |
1921 | ||
1922 | Int_t indx, indx1, npxclu, npxclu1, imax=0; | |
1923 | TObjArray *pix, *pix1; | |
1924 | Double_t couplMax; | |
1925 | ||
1926 | for (Int_t icl=0; icl<nForFit; icl++) { | |
1927 | indx = clustFit[icl]; | |
1928 | pix = clusters[indx]; | |
1929 | npxclu = pix->GetEntriesFast(); | |
1930 | couplMax = -1; | |
1931 | for (Int_t icl1=0; icl1<nCoupled; icl1++) { | |
1932 | indx1 = clustNumb[icl1]; | |
1933 | if (indx1 < 0) continue; | |
1934 | if ((*aij_clu_clu)(indx,indx1) > couplMax) { | |
1935 | couplMax = (*aij_clu_clu)(indx,indx1); | |
1936 | imax = indx1; | |
1937 | } | |
1938 | } // for (Int_t icl1=0; | |
1939 | /*if (couplMax < kCouplMin) { | |
1940 | cout << " Oops " << couplMax << endl; | |
1941 | aij_clu_clu->Print(); | |
1942 | cout << icl << " " << indx << " " << npxclu << " " << nLinks << endl; | |
1943 | ::exit(0); | |
1944 | }*/ | |
1945 | // Add to it | |
1946 | pix1 = clusters[imax]; | |
1947 | npxclu1 = pix1->GetEntriesFast(); | |
1948 | // Add pixels | |
1949 | for (Int_t i=0; i<npxclu; i++) { pix1->Add(pix->UncheckedAt(i)); pix->RemoveAt(i); } | |
1950 | cout << " New number of pixels: " << npxclu1 << " " << pix1->GetEntriesFast() << endl; | |
1951 | //Add cluster-to-cluster couplings | |
1952 | //aij_clu_clu->Print(); | |
1953 | for (Int_t icl1=0; icl1<nCoupled; icl1++) { | |
1954 | indx1 = clustNumb[icl1]; | |
1955 | if (indx1 < 0 || indx1 == imax) continue; | |
1956 | (*aij_clu_clu)(indx1,imax) += (*aij_clu_clu)(indx,indx1); | |
1957 | (*aij_clu_clu)(imax,indx1) = (*aij_clu_clu)(indx1,imax); | |
1958 | } | |
1959 | (*aij_clu_clu)(indx,imax) = (*aij_clu_clu)(imax,indx) = 0; | |
1960 | //aij_clu_clu->Print(); | |
1961 | //Add cluster-to-pad couplings | |
1962 | for (Int_t j=0; j<fnPads[0]+fnPads[1]; j++) { | |
1963 | if (fPadIJ[1][j] < 0) continue; // exclude overflows and used pads | |
1964 | (*aij_clu_pad)(imax,j) += (*aij_clu_pad)(indx,j); | |
1965 | (*aij_clu_pad)(indx,j) = 0; | |
1966 | } | |
1967 | } // for (Int_t icl=0; icl<nForFit; | |
1968 | } | |
1969 | ||
1970 | //_____________________________________________________________________________ | |
1971 | Int_t AliMUONClusterFinderAZ::Fit(Int_t nfit, Int_t *clustFit, TObjArray **clusters, Double_t *parOk) | |
1972 | { | |
1973 | // Find selected clusters to selected pad charges | |
1974 | ||
1975 | TH2D *mlem = (TH2D*) gROOT->FindObject("mlem"); | |
1976 | //Int_t nx = mlem->GetNbinsX(); | |
1977 | //Int_t ny = mlem->GetNbinsY(); | |
1978 | Double_t xmin = mlem->GetXaxis()->GetXmin() - mlem->GetXaxis()->GetBinWidth(1); | |
1979 | Double_t xmax = mlem->GetXaxis()->GetXmax() + mlem->GetXaxis()->GetBinWidth(1); | |
1980 | Double_t ymin = mlem->GetYaxis()->GetXmin() - mlem->GetYaxis()->GetBinWidth(1); | |
1981 | Double_t ymax = mlem->GetYaxis()->GetXmax() + mlem->GetYaxis()->GetBinWidth(1); | |
1982 | //Double_t qmin = 0, qmax = 1; | |
1983 | Double_t step[3]={0.01,0.002,0.02}; | |
1984 | ||
1985 | Double_t cont, cmax = 0, xseed = 0, yseed = 0, errOk[8]; | |
1986 | TObjArray *pix; | |
1987 | Int_t npxclu; | |
1988 | ||
1989 | // Number of pads to use | |
1990 | Int_t npads = 0; | |
1991 | for (Int_t i=0; i<fnPads[0]+fnPads[1]; i++) {if (fPadIJ[1][i] == 1) npads++;} | |
1992 | for (Int_t i=0; i<nfit; i++) {cout << i+1 << " " << clustFit[i] << " ";} | |
1993 | cout << nfit << endl; | |
1994 | cout << " Number of pads to fit: " << npads << endl; | |
1995 | fNpar = 0; | |
1996 | fQtot = 0; | |
1997 | if (npads < 2) return 0; | |
1998 | ||
1999 | // Take cluster maxima as fitting seeds | |
2000 | AliMUONPixel *pixPtr; | |
2001 | Double_t xyseed[3][2], qseed[3]; | |
2002 | for (Int_t ifit=1; ifit<=nfit; ifit++) { | |
2003 | cmax = 0; | |
2004 | pix = clusters[clustFit[ifit-1]]; | |
2005 | npxclu = pix->GetEntriesFast(); | |
2006 | for (Int_t clu=0; clu<npxclu; clu++) { | |
2007 | pixPtr = (AliMUONPixel*) pix->UncheckedAt(clu); | |
2008 | cont = pixPtr->Charge(); | |
2009 | fQtot += cont; | |
2010 | if (cont > cmax) { | |
2011 | cmax = cont; | |
2012 | xseed = pixPtr->Coord(0); | |
2013 | yseed = pixPtr->Coord(1); | |
2014 | } | |
2015 | } | |
2016 | xyseed[ifit-1][0] = xseed; | |
2017 | xyseed[ifit-1][1] = yseed; | |
2018 | qseed[ifit-1] = cmax; | |
2019 | } // for (Int_t ifit=1; | |
2020 | ||
2021 | Int_t nDof, maxSeed[3]; | |
2022 | Double_t fmin, chi2o = 9999, chi2n; | |
2023 | ||
2024 | // Try to fit with one-track hypothesis, then 2-track. If chi2/dof is | |
2025 | // lower, try 3-track (if number of pads is sufficient). | |
2026 | ||
2027 | TMath::Sort(nfit, qseed, maxSeed, kTRUE); // in decreasing order | |
2028 | nfit = TMath::Min (nfit, (npads + 1) / 3); | |
2029 | ||
2030 | Double_t *gin = 0, func0, func1, param[8], param0[2][8], deriv[2][8], step0[8]; | |
2031 | Double_t shift[8], stepMax, derMax, parmin[8], parmax[8], func2[2], shift0; | |
2032 | Double_t delta[8], scMax, dder[8], estim, shiftSave = 0; | |
2033 | Int_t min, max, nCall = 0, memory[8] = {0}, nLoop, idMax = 0, iestMax = 0, nFail; | |
2034 | ||
2035 | for (Int_t iseed=0; iseed<nfit; iseed++) { | |
2036 | ||
2037 | for (Int_t j=0; j<3; j++) step0[fNpar+j] = shift[fNpar+j] = step[j]; | |
2038 | param[fNpar] = xyseed[maxSeed[iseed]][0]; | |
2039 | parmin[fNpar] = xmin; | |
2040 | parmax[fNpar++] = xmax; | |
2041 | param[fNpar] = xyseed[maxSeed[iseed]][1]; | |
2042 | parmin[fNpar] = ymin; | |
2043 | parmax[fNpar++] = ymax; | |
2044 | if (fNpar > 2) { | |
2045 | param[fNpar] = fNpar == 4 ? 0.5 : 0.3; | |
2046 | parmin[fNpar] = 0; | |
2047 | parmax[fNpar++] = 1; | |
2048 | } | |
2049 | ||
2050 | // Try new algorithm | |
2051 | min = nLoop = 1; stepMax = func2[1] = derMax = 999999; nFail = 0; | |
2052 | ||
2053 | while (1) { | |
2054 | max = !min; | |
2055 | fcn1(fNpar, gin, func0, param, 1); nCall++; | |
2056 | //cout << " Func: " << func0 << endl; | |
2057 | ||
2058 | func2[max] = func0; | |
2059 | for (Int_t j=0; j<fNpar; j++) { | |
2060 | param0[max][j] = param[j]; | |
2061 | delta[j] = step0[j]; | |
2062 | param[j] += delta[j] / 10; | |
2063 | if (j > 0) param[j-1] -= delta[j-1] / 10; | |
2064 | fcn1(fNpar, gin, func1, param, 1); nCall++; | |
2065 | deriv[max][j] = (func1 - func0) / delta[j] * 10; // first derivative | |
2066 | //cout << j << " " << deriv[max][j] << endl; | |
2067 | dder[j] = param0[0][j] != param0[1][j] ? (deriv[0][j] - deriv[1][j]) / | |
2068 | (param0[0][j] - param0[1][j]) : 0; // second derivative | |
2069 | } | |
2070 | param[fNpar-1] -= delta[fNpar-1] / 10; | |
2071 | if (nCall > 2000) ::exit(0); | |
2072 | ||
2073 | min = func2[0] < func2[1] ? 0 : 1; | |
2074 | nFail = min == max ? 0 : nFail + 1; | |
2075 | ||
2076 | stepMax = derMax = estim = 0; | |
2077 | for (Int_t j=0; j<fNpar; j++) { | |
2078 | // Estimated distance to minimum | |
2079 | shift0 = shift[j]; | |
2080 | if (nLoop == 1) shift[j] = TMath::Sign (step0[j], -deriv[max][j]); // first step | |
2081 | else if (TMath::Abs(deriv[0][j]) < 1.e-3 && TMath::Abs(deriv[1][j]) < 1.e-3) shift[j] = 0; | |
2082 | else if (deriv[min][j]*deriv[!min][j] > 0 && TMath::Abs(deriv[min][j]) > TMath::Abs(deriv[!min][j]) | |
2083 | || TMath::Abs(deriv[0][j]-deriv[1][j]) < 1.e-3) { | |
2084 | shift[j] = -TMath::Sign (shift[j], (func2[0]-func2[1]) * (param0[0][j]-param0[1][j])); | |
2085 | if (min == max) { | |
2086 | if (memory[j] > 1) { shift[j] *= 2; } //cout << " Memory " << memory[j] << " " << shift[j] << endl; } | |
2087 | memory[j]++; | |
2088 | } | |
2089 | } else { | |
2090 | shift[j] = -deriv[min][j] / dder[j]; | |
2091 | memory[j] = 0; | |
2092 | } | |
2093 | if (TMath::Abs(shift[j])/step0[j] > estim) { | |
2094 | estim = TMath::Abs(shift[j])/step0[j]; | |
2095 | iestMax = j; | |
2096 | } | |
2097 | ||
2098 | // Too big step | |
2099 | if (TMath::Abs(shift[j])/step0[j] > 10) shift[j] = TMath::Sign(10.,shift[j]) * step0[j]; // | |
2100 | ||
2101 | // Failed to improve minimum | |
2102 | if (min != max) { | |
2103 | memory[j] = 0; | |
2104 | param[j] = param0[min][j]; | |
2105 | if (TMath::Abs(shift[j]+shift0) > 0.1*step0[j]) shift[j] = (shift[j] + shift0) / 2; | |
2106 | else shift[j] /= -2; | |
2107 | } | |
2108 | ||
2109 | // Too big step | |
2110 | if (TMath::Abs(shift[j]*deriv[min][j]) > func2[min]) | |
2111 | shift[j] = TMath::Sign (func2[min]/deriv[min][j], shift[j]); | |
2112 | ||
2113 | // Introduce step relaxation factor | |
2114 | if (memory[j] < 3) { | |
2115 | scMax = 1 + 4 / TMath::Max(nLoop/2.,1.); | |
2116 | if (TMath::Abs(shift0) > 0 && TMath::Abs(shift[j]/shift0) > scMax) | |
2117 | shift[j] = TMath::Sign (shift0*scMax, shift[j]); | |
2118 | } | |
2119 | param[j] += shift[j]; | |
2120 | ||
2121 | //cout << " xxx " << j << " " << shift[j] << " " << param[j] << endl; | |
2122 | stepMax = TMath::Max (stepMax, TMath::Abs(shift[j]/step0[j])); | |
2123 | if (TMath::Abs(deriv[min][j]) > derMax) { | |
2124 | idMax = j; | |
2125 | derMax = TMath::Abs (deriv[min][j]); | |
2126 | } | |
2127 | } // for (Int_t j=0; j<fNpar; | |
2128 | //cout << max << " " << func2[min] << " " << derMax << " " << stepMax << " " << estim << " " << iestMax << " " << nCall << endl; | |
2129 | if (estim < 1 && derMax < 2 || nLoop > 100) break; // minimum was found | |
2130 | ||
2131 | nLoop++; | |
2132 | // Check for small step | |
2133 | if (shift[idMax] == 0) { shift[idMax] = step0[idMax]/10; param[idMax] += shift[idMax]; continue; } | |
2134 | if (!memory[idMax] && derMax > 0.5 && nLoop > 10) { | |
2135 | //cout << " ok " << deriv[min][idMax] << " " << deriv[!min][idMax] << " " << dder[idMax]*shift[idMax] << " " << shift[idMax] << endl; | |
2136 | if (dder[idMax] != 0 && TMath::Abs(deriv[min][idMax]/dder[idMax]/shift[idMax]) > 10) { | |
2137 | if (min == max) dder[idMax] = -dder[idMax]; | |
2138 | shift[idMax] = -deriv[min][idMax] / dder[idMax] / 10; | |
2139 | param[idMax] += shift[idMax]; | |
2140 | stepMax = TMath::Max (stepMax, TMath::Abs(shift[idMax])/step0[idMax]); | |
2141 | //cout << shift[idMax] << " " << param[idMax] << endl; | |
2142 | if (min == max) shiftSave = shift[idMax]; | |
2143 | } | |
2144 | if (nFail > 10) { | |
2145 | param[idMax] -= shift[idMax]; | |
2146 | shift[idMax] = 4 * shiftSave * (gRandom->Rndm(0) - 0.5); | |
2147 | param[idMax] += shift[idMax]; | |
2148 | //cout << shift[idMax] << endl; | |
2149 | } | |
2150 | } | |
2151 | } // while (1) | |
2152 | fmin = func2[min]; | |
2153 | ||
2154 | nDof = npads - fNpar; | |
2155 | chi2n = nDof ? fmin/nDof : 0; | |
2156 | ||
2157 | if (chi2n*1.2+1.e-6 > chi2o ) { fNpar -= 3; break; } | |
2158 | // Save parameters and errors | |
2159 | for (Int_t i=0; i<fNpar; i++) { | |
2160 | parOk[i] = param0[min][i]; | |
2161 | errOk[i] = fmin; | |
2162 | } | |
2163 | ||
2164 | cout << chi2o << " " << chi2n << endl; | |
2165 | chi2o = chi2n; | |
2166 | if (fmin < 0.1) break; // !!!??? | |
2167 | } // for (Int_t iseed=0; | |
2168 | ||
2169 | for (Int_t i=0; i<fNpar; i++) { | |
2170 | if (i == 4 || i == 7) continue; | |
2171 | cout << parOk[i] << " " << errOk[i] << endl; | |
2172 | } | |
2173 | nfit = (fNpar + 1) / 3; | |
2174 | Double_t rad; | |
2175 | Int_t indx, imax; | |
2176 | if (fReco) { | |
2177 | for (Int_t j=0; j<nfit; j++) { | |
2178 | indx = j<2 ? j*2 : j*2+1; | |
2179 | AddRawCluster (parOk[indx], parOk[indx+1], errOk[indx]); | |
2180 | } | |
2181 | return nfit; | |
2182 | } | |
2183 | for (Int_t i=0; i<fnMu; i++) { | |
2184 | cmax = fxyMu[i][6]; | |
2185 | for (Int_t j=0; j<nfit; j++) { | |
2186 | indx = j<2 ? j*2 : j*2+1; | |
2187 | rad = (fxyMu[i][0]-parOk[indx])*(fxyMu[i][0]-parOk[indx]) + | |
2188 | (fxyMu[i][1]-parOk[indx+1])*(fxyMu[i][1]-parOk[indx+1]); | |
2189 | if (rad < cmax) { | |
2190 | cmax = rad; | |
2191 | imax = indx; | |
2192 | fxyMu[i][6] = cmax; | |
2193 | fxyMu[i][2] = parOk[imax] - fxyMu[i][0]; | |
2194 | fxyMu[i][4] = parOk[imax+1] - fxyMu[i][1]; | |
2195 | fxyMu[i][3] = errOk[imax]; | |
2196 | fxyMu[i][5] = errOk[imax+1]; | |
2197 | } | |
2198 | } | |
2199 | } | |
2200 | return nfit; | |
2201 | } | |
2202 | ||
2203 | //_____________________________________________________________________________ | |
6aaf81e6 | 2204 | void fcn1(Int_t & /*npar*/, Double_t * /*gin*/, Double_t &f, Double_t *par, Int_t /*iflag*/) |
0df3ca52 | 2205 | { |
2206 | // Fit for one track | |
2207 | AliMUONClusterFinderAZ& c = *(AliMUONClusterFinderAZ::fgClusterFinder); | |
2208 | ||
2209 | Int_t cath, ix, iy, indx, npads=0; | |
2210 | Double_t charge, delta, coef=0, chi2=0; | |
2211 | for (Int_t j=0; j<c.fnPads[0]+c.fnPads[1]; j++) { | |
2212 | if (c.fPadIJ[1][j] != 1) continue; | |
2213 | cath = c.fPadIJ[0][j]; | |
2214 | npads++; | |
2215 | c.fSegmentation[cath]->GetPadI(c.fXyq[0][j],c.fXyq[1][j],c.fZpad,ix,iy); | |
2216 | c.fSegmentation[cath]->SetPad(ix,iy); | |
2217 | charge = 0; | |
2218 | for (Int_t i=c.fNpar/3; i>=0; i--) { // sum over tracks | |
2219 | indx = i<2 ? 2*i : 2*i+1; | |
2220 | c.fSegmentation[cath]->SetHit(par[indx],par[indx+1],c.fZpad); | |
2221 | //charge += c.fResponse->IntXY(c.fSegmentation[cath])*par[icl*3+2]; | |
2222 | if (c.fNpar == 2) coef = 1; | |
2223 | else coef = i==c.fNpar/3 ? par[indx+2] : 1-coef; | |
2224 | //coef = TMath::Max (coef, 0.); | |
2225 | if (c.fNpar == 8 && i < 2) coef = i==1 ? coef*par[indx+2] : coef - par[7]; | |
2226 | //coef = TMath::Max (coef, 0.); | |
2227 | charge += c.fResponse->IntXY(c.fSegmentation[cath])*coef; | |
2228 | } | |
2229 | charge *= c.fQtot; | |
2230 | //if (c.fXyq[2][j] > c.fResponse->MaxAdc()-1 && charge > | |
2231 | // c.fResponse->MaxAdc()) charge = c.fResponse->MaxAdc(); | |
2232 | delta = charge - c.fXyq[2][j]; | |
2233 | delta /= TMath::Sqrt ((Double_t)c.fXyq[2][j]); | |
2234 | //chi2 += TMath::Abs(delta); | |
2235 | chi2 += delta*delta; | |
2236 | } // for (Int_t j=0; | |
2237 | f = chi2; | |
2238 | Double_t qAver = c.fQtot/npads; //(c.fnPads[0]+c.fnPads[1]); | |
2239 | f = chi2/qAver; | |
2240 | } | |
2241 | ||
2242 | //_____________________________________________________________________________ | |
6aaf81e6 | 2243 | void AliMUONClusterFinderAZ::UpdatePads(Int_t /*nfit*/, Double_t *par) |
0df3ca52 | 2244 | { |
2245 | // Subtract the fitted charges from pads with strong coupling | |
2246 | ||
2247 | Int_t cath, ix, iy, indx; | |
2248 | Double_t charge, coef=0; | |
2249 | for (Int_t j=0; j<fnPads[0]+fnPads[1]; j++) { | |
2250 | if (fPadIJ[1][j] != -1) continue; | |
2251 | if (fNpar != 0) { | |
2252 | cath = fPadIJ[0][j]; | |
2253 | fSegmentation[cath]->GetPadI(fXyq[0][j],fXyq[1][j],fZpad,ix,iy); | |
2254 | fSegmentation[cath]->SetPad(ix,iy); | |
2255 | charge = 0; | |
2256 | for (Int_t i=fNpar/3; i>=0; i--) { // sum over tracks | |
2257 | indx = i<2 ? 2*i : 2*i+1; | |
2258 | fSegmentation[cath]->SetHit(par[indx],par[indx+1],fZpad); | |
2259 | if (fNpar == 2) coef = 1; | |
2260 | else coef = i==fNpar/3 ? par[indx+2] : 1-coef; | |
2261 | if (fNpar == 8 && i < 2) coef = i==1 ? coef*par[indx+2] : coef - par[7]; | |
2262 | charge += fResponse->IntXY(fSegmentation[cath])*coef; | |
2263 | } | |
2264 | charge *= fQtot; | |
2265 | fXyq[2][j] -= charge; | |
2266 | } // if (fNpar != 0) | |
2267 | if (fXyq[2][j] > fResponse->ZeroSuppression()) fPadIJ[1][j] = 0; // return pad for further using | |
2268 | } // for (Int_t j=0; | |
2269 | } | |
2270 | ||
2271 | //_____________________________________________________________________________ | |
6aaf81e6 | 2272 | Bool_t AliMUONClusterFinderAZ::TestTrack(Int_t /*t*/) { |
0df3ca52 | 2273 | // Test if track was user selected |
2274 | return kTRUE; | |
2275 | /* | |
2276 | if (fTrack[0]==-1 || fTrack[1]==-1) { | |
2277 | return kTRUE; | |
2278 | } else if (t==fTrack[0] || t==fTrack[1]) { | |
2279 | return kTRUE; | |
2280 | } else { | |
2281 | return kFALSE; | |
2282 | } | |
2283 | */ | |
2284 | } | |
2285 | ||
2286 | //_____________________________________________________________________________ | |
2287 | void AliMUONClusterFinderAZ::AddRawCluster(Double_t x, Double_t y, Double_t fmin) | |
2288 | { | |
2289 | // | |
2290 | // Add a raw cluster copy to the list | |
2291 | // | |
2292 | AliMUONRawCluster cnew; | |
2293 | AliMUON *pMUON=(AliMUON*)gAlice->GetModule("MUON"); | |
2294 | //pMUON->AddRawCluster(fInput->Chamber(),c); | |
2295 | ||
2296 | Int_t cath; | |
2297 | for (cath=0; cath<2; cath++) { | |
2298 | cnew.fX[cath] = x; | |
2299 | cnew.fY[cath] = y; | |
2300 | cnew.fZ[cath] = fZpad; | |
2301 | cnew.fQ[cath] = 100; | |
2302 | cnew.fPeakSignal[cath] = 20; | |
2303 | cnew.fMultiplicity[cath] = 5; | |
2304 | cnew.fNcluster[cath] = 1; | |
2305 | cnew.fChi2[cath] = fmin; //0.1; | |
2306 | /* | |
2307 | cnew.fMultiplicity[cath]=c->fMultiplicity[cath]; | |
2308 | for (i=0; i<fMul[cath]; i++) { | |
2309 | cnew.fIndexMap[i][cath]=c->fIndexMap[i][cath]; | |
2310 | fSeg[cath]->SetPad(fIx[i][cath], fIy[i][cath]); | |
2311 | } | |
2312 | fprintf(stderr,"\nRawCluster %d cath %d\n",ico,cath); | |
2313 | fprintf(stderr,"mult_av %d\n",c->fMultiplicity[cath]); | |
2314 | FillCluster(&cnew,cath); | |
2315 | */ | |
2316 | } | |
2317 | //cnew.fClusterType=cnew.PhysicsContribution(); | |
2318 | pMUON->AddRawCluster(AliMUONClusterInput::Instance()->Chamber(),cnew); | |
2319 | //fNPeaks++; | |
2320 | } | |
2321 | ||
2322 | //_____________________________________________________________________________ | |
2323 | Int_t AliMUONClusterFinderAZ::FindLocalMaxima(Int_t *localMax, Double_t *maxVal) | |
2324 | { | |
2325 | // Find local maxima in pixel space for large preclusters in order to | |
2326 | // try to split them into smaller pieces (to speed up the MLEM procedure) | |
2327 | ||
2328 | TH2D *hist = (TH2D*) gROOT->FindObject("anode"); | |
2329 | if (hist) hist->Delete(); | |
2330 | ||
cd747ddb | 2331 | Double_t xylim[4] = {999, 999, 999, 999}; |
0df3ca52 | 2332 | Int_t nPix = fPixArray->GetEntriesFast(); |
2333 | AliMUONPixel *pixPtr = 0; | |
2334 | for (Int_t ipix=0; ipix<nPix; ipix++) { | |
2335 | pixPtr = (AliMUONPixel*) fPixArray->UncheckedAt(ipix); | |
2336 | for (Int_t i=0; i<4; i++) | |
2337 | xylim[i] = TMath::Min (xylim[i], (i%2 ? -1 : 1)*pixPtr->Coord(i/2)); | |
2338 | } | |
2339 | for (Int_t i=0; i<4; i++) xylim[i] -= pixPtr->Size(i/2); | |
2340 | ||
2341 | Int_t nx = TMath::Nint ((-xylim[1]-xylim[0])/pixPtr->Size(0)/2); | |
2342 | Int_t ny = TMath::Nint ((-xylim[3]-xylim[2])/pixPtr->Size(1)/2); | |
2343 | hist = new TH2D("anode","anode",nx,xylim[0],-xylim[1],ny,xylim[2],-xylim[3]); | |
2344 | for (Int_t ipix=0; ipix<nPix; ipix++) { | |
2345 | pixPtr = (AliMUONPixel*) fPixArray->UncheckedAt(ipix); | |
2346 | hist->Fill(pixPtr->Coord(0), pixPtr->Coord(1), pixPtr->Charge()); | |
2347 | } | |
2348 | if (fDraw) { | |
2349 | ((TCanvas*)gROOT->FindObject("c2"))->cd(); | |
2350 | gPad->SetTheta(55); | |
2351 | gPad->SetPhi(30); | |
2352 | hist->Draw("lego1Fb"); | |
2353 | gPad->Update(); | |
2354 | int ia; | |
2355 | cin >> ia; | |
2356 | } | |
2357 | ||
2358 | Int_t nMax = 0, indx; | |
2359 | Int_t *isLocalMax = new Int_t[ny*nx]; | |
2360 | for (Int_t i=0; i<ny*nx; i++) isLocalMax[i] = 0; | |
2361 | ||
2362 | for (Int_t i=1; i<=ny; i++) { | |
2363 | indx = (i-1) * nx; | |
2364 | for (Int_t j=1; j<=nx; j++) { | |
2365 | if (hist->GetCellContent(j,i) < 0.5) continue; | |
2366 | //if (isLocalMax[indx+j-1] < 0) continue; | |
2367 | if (isLocalMax[indx+j-1] != 0) continue; | |
2368 | FlagLocalMax(hist, i, j, isLocalMax); | |
2369 | } | |
2370 | } | |
2371 | ||
2372 | for (Int_t i=1; i<=ny; i++) { | |
2373 | indx = (i-1) * nx; | |
2374 | for (Int_t j=1; j<=nx; j++) { | |
2375 | if (isLocalMax[indx+j-1] > 0) { | |
2376 | localMax[nMax] = indx + j - 1; | |
2377 | maxVal[nMax++] = hist->GetCellContent(j,i); | |
2378 | } | |
2379 | if (nMax > 99) { cout << " Too many local maxima !!!" << endl; ::exit(0); } | |
2380 | } | |
2381 | } | |
2382 | cout << " Local max: " << nMax << endl; | |
2383 | delete [] isLocalMax; isLocalMax = 0; | |
2384 | return nMax; | |
2385 | } | |
2386 | ||
2387 | //_____________________________________________________________________________ | |
2388 | void AliMUONClusterFinderAZ::FlagLocalMax(TH2D *hist, Int_t i, Int_t j, Int_t *isLocalMax) | |
2389 | { | |
2390 | // Flag pixels (whether or not local maxima) | |
2391 | ||
2392 | Int_t nx = hist->GetNbinsX(); | |
2393 | Int_t ny = hist->GetNbinsY(); | |
2394 | Int_t cont = TMath::Nint (hist->GetCellContent(j,i)); | |
2395 | Int_t cont1 = 0; | |
2396 | ||
2397 | for (Int_t i1=i-1; i1<i+2; i1++) { | |
2398 | if (i1 < 1 || i1 > ny) continue; | |
2399 | for (Int_t j1=j-1; j1<j+2; j1++) { | |
2400 | if (j1 < 1 || j1 > nx) continue; | |
2401 | if (i == i1 && j == j1) continue; | |
2402 | cont1 = TMath::Nint (hist->GetCellContent(j1,i1)); | |
2403 | if (cont < cont1) { isLocalMax[(i-1)*nx+j-1] = -1; return; } | |
2404 | else if (cont > cont1) isLocalMax[(i1-1)*nx+j1-1] = -1; | |
2405 | else { // the same charge | |
2406 | isLocalMax[(i-1)*nx+j-1] = 1; | |
2407 | if (isLocalMax[(i1-1)*nx+j1-1] == 0) { | |
2408 | FlagLocalMax(hist, i1, j1, isLocalMax); | |
2409 | if (isLocalMax[(i1-1)*nx+j1-1] < 0) { isLocalMax[(i-1)*nx+j-1] = -1; return; } | |
2410 | else isLocalMax[(i1-1)*nx+j1-1] = -1; | |
2411 | } | |
2412 | } | |
2413 | } | |
2414 | } | |
2415 | isLocalMax[(i-1)*nx+j-1] = 1; // local maximum | |
2416 | } | |
2417 | ||
2418 | //_____________________________________________________________________________ | |
2419 | void AliMUONClusterFinderAZ::FindCluster(Int_t *localMax, Int_t iMax) | |
2420 | { | |
2421 | // Find pixel cluster around local maximum #iMax and pick up pads | |
2422 | // overlapping with it | |
2423 | ||
2424 | TH2D *hist = (TH2D*) gROOT->FindObject("anode"); | |
2425 | Int_t nx = hist->GetNbinsX(); | |
2426 | Int_t ny = hist->GetNbinsY(); | |
2427 | Int_t ic = localMax[iMax] / nx + 1; | |
2428 | Int_t jc = localMax[iMax] % nx + 1; | |
2429 | Bool_t *used = new Bool_t[ny*nx]; | |
2430 | for (Int_t i=0; i<ny*nx; i++) used[i] = kFALSE; | |
2431 | ||
2432 | // Drop all pixels from the array - pick up only the ones from the cluster | |
2433 | fPixArray->Delete(); | |
2434 | ||
2435 | Double_t wx = hist->GetXaxis()->GetBinWidth(1)/2; | |
2436 | Double_t wy = hist->GetYaxis()->GetBinWidth(1)/2; | |
2437 | Double_t yc = hist->GetYaxis()->GetBinCenter(ic); | |
2438 | Double_t xc = hist->GetXaxis()->GetBinCenter(jc); | |
2439 | Double_t cont = hist->GetCellContent(jc,ic); | |
2440 | AliMUONPixel *pixPtr = new AliMUONPixel (xc, yc, wx, wy, cont); | |
2441 | fPixArray->Add((TObject*)pixPtr); | |
2442 | used[(ic-1)*nx+jc-1] = kTRUE; | |
2443 | AddBin(hist, ic, jc, 1, used, (TObjArray*)0); // recursive call | |
2444 | ||
2445 | Int_t nPix = fPixArray->GetEntriesFast(), npad = fnPads[0] + fnPads[1]; | |
2446 | for (Int_t i=0; i<nPix; i++) { | |
2447 | ((AliMUONPixel*)fPixArray->UncheckedAt(i))->SetSize(0,wx); | |
2448 | ((AliMUONPixel*)fPixArray->UncheckedAt(i))->SetSize(1,wy); | |
2449 | } | |
2450 | cout << iMax << " " << nPix << endl; | |
2451 | ||
2452 | Float_t xy[4], xy12[4]; | |
2453 | // Pick up pads which overlap with found pixels | |
2454 | for (Int_t i=0; i<npad; i++) fPadIJ[1][i] = -1; | |
2455 | for (Int_t i=0; i<nPix; i++) { | |
2456 | pixPtr = (AliMUONPixel*) fPixArray->UncheckedAt(i); | |
2457 | for (Int_t j=0; j<4; j++) | |
2458 | xy[j] = pixPtr->Coord(j/2) + (j%2 ? 1 : -1)*pixPtr->Size(j/2); | |
2459 | for (Int_t j=0; j<npad; j++) | |
2460 | if (Overlap(xy, j, xy12, 0)) fPadIJ[1][j] = 0; // flag for use | |
2461 | } | |
2462 | ||
2463 | delete [] used; used = 0; | |
2464 | } |