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30178c30 | 1 | /************************************************************************** |
2 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
3 | * * | |
4 | * Author: The ALICE Off-line Project. * | |
5 | * Contributors are mentioned in the code where appropriate. * | |
6 | * * | |
7 | * Permission to use, copy, modify and distribute this software and its * | |
8 | * documentation strictly for non-commercial purposes is hereby granted * | |
9 | * without fee, provided that the above copyright notice appears in all * | |
10 | * copies and that both the copyright notice and this permission notice * | |
11 | * appear in the supporting documentation. The authors make no claims * | |
12 | * about the suitability of this software for any purpose. It is * | |
13 | * provided "as is" without express or implied warranty. * | |
14 | **************************************************************************/ | |
15 | ||
16 | /* $Id$ */ | |
17 | ||
1af223d7 | 18 | // Clusterizer class developed by A. Zinchenko (Dubna) |
0df3ca52 | 19 | |
ae17f568 | 20 | #include <stdlib.h> |
0df3ca52 | 21 | #include <Riostream.h> |
1af223d7 | 22 | //#include <TROOT.h> |
0df3ca52 | 23 | #include <TH2.h> |
0df3ca52 | 24 | #include <TMinuit.h> |
25 | #include <TMatrixD.h> | |
26 | ||
30178c30 | 27 | #include "AliMUONClusterFinderAZ.h" |
1af223d7 | 28 | #include "AliMUONClusterDrawAZ.h" |
0df3ca52 | 29 | #include "AliHeader.h" |
30 | #include "AliRun.h" | |
31 | #include "AliMUON.h" | |
1af223d7 | 32 | //#include "AliMUONChamber.h" |
0df3ca52 | 33 | #include "AliMUONDigit.h" |
1af223d7 | 34 | //#include "AliMUONHit.h" |
0df3ca52 | 35 | #include "AliMUONRawCluster.h" |
36 | #include "AliMUONClusterInput.h" | |
37 | #include "AliMUONPixel.h" | |
1af223d7 | 38 | //#include "AliMC.h" |
39 | //#include "AliMUONLoader.h" | |
8c343c7c | 40 | #include "AliLog.h" |
0df3ca52 | 41 | |
0df3ca52 | 42 | ClassImp(AliMUONClusterFinderAZ) |
0558a292 | 43 | |
343146bf | 44 | const Double_t AliMUONClusterFinderAZ::fgkCouplMin = 1.e-3; // threshold on coupling |
0558a292 | 45 | AliMUONClusterFinderAZ* AliMUONClusterFinderAZ::fgClusterFinder = 0x0; |
46 | TMinuit* AliMUONClusterFinderAZ::fgMinuit = 0x0; | |
2b1e4f0e | 47 | //FILE *lun1 = fopen("nxny.dat","w"); |
0df3ca52 | 48 | |
0df3ca52 | 49 | //_____________________________________________________________________________ |
1af223d7 | 50 | AliMUONClusterFinderAZ::AliMUONClusterFinderAZ(Bool_t draw) |
74f7bbc5 | 51 | : AliMUONClusterFinderVS() |
0df3ca52 | 52 | { |
53 | // Constructor | |
af34d705 | 54 | fnPads[0]=fnPads[1]=0; |
55 | ||
56 | for (Int_t i=0; i<7; i++) | |
57 | for (Int_t j=0; j<fgkDim; j++) | |
58 | fXyq[i][j]= 9999.; | |
59 | ||
60 | for (Int_t i=0; i<2; i++) | |
61 | for (Int_t j=0; j<fgkDim; j++) { | |
62 | fPadIJ[i][j]=-1; | |
63 | fUsed[i][j] = 0; | |
64 | } | |
65 | ||
66 | fSegmentation[1] = fSegmentation[0] = 0; | |
67 | fResponse = 0x0; | |
68 | ||
69 | fZpad = 100000; | |
70 | fNpar = 0; | |
71 | fQtot = 0; | |
72 | fReco = 1; | |
73 | ||
74 | fCathBeg = 0; | |
75 | fPadBeg[0] = fPadBeg[1] = 0; | |
0df3ca52 | 76 | if (!fgMinuit) fgMinuit = new TMinuit(8); |
af34d705 | 77 | |
78 | if (!fgClusterFinder) fgClusterFinder = this; | |
79 | fDraw = 0; | |
0df3ca52 | 80 | fPixArray = new TObjArray(20); |
af34d705 | 81 | fnCoupled = 0; |
2b1e4f0e | 82 | fDebug = 0; //0; |
af34d705 | 83 | |
1af223d7 | 84 | if (draw) { |
85 | fDebug = 1; | |
cc87ebcd | 86 | fReco = 0; |
1af223d7 | 87 | fDraw = new AliMUONClusterDrawAZ(this); |
88 | } | |
cc87ebcd | 89 | cout << " *** Running AZ cluster finder *** " << endl; |
0df3ca52 | 90 | } |
91 | ||
74f7bbc5 | 92 | //_____________________________________________________________________________ |
93 | AliMUONClusterFinderAZ::AliMUONClusterFinderAZ(const AliMUONClusterFinderAZ& rhs) | |
94 | : AliMUONClusterFinderVS(rhs) | |
95 | { | |
96 | // Protected copy constructor | |
97 | ||
8c343c7c | 98 | AliFatal("Not implemented."); |
74f7bbc5 | 99 | } |
100 | ||
0df3ca52 | 101 | //_____________________________________________________________________________ |
102 | AliMUONClusterFinderAZ::~AliMUONClusterFinderAZ() | |
103 | { | |
104 | // Destructor | |
105 | delete fgMinuit; fgMinuit = 0; delete fPixArray; fPixArray = 0; | |
1af223d7 | 106 | delete fDraw; |
0df3ca52 | 107 | } |
108 | ||
109 | //_____________________________________________________________________________ | |
110 | void AliMUONClusterFinderAZ::FindRawClusters() | |
111 | { | |
112 | // To provide the same interface as in AliMUONClusterFinderVS | |
113 | ||
1af223d7 | 114 | ResetRawClusters(); |
0df3ca52 | 115 | EventLoop (gAlice->GetHeader()->GetEvent(), AliMUONClusterInput::Instance()->Chamber()); |
116 | } | |
117 | ||
118 | //_____________________________________________________________________________ | |
1af223d7 | 119 | void AliMUONClusterFinderAZ::EventLoop(Int_t nev, Int_t ch) |
0df3ca52 | 120 | { |
2b1e4f0e | 121 | // Loop over digits |
0df3ca52 | 122 | |
1af223d7 | 123 | if (fDraw && !fDraw->FindEvCh(nev, ch)) return; |
0df3ca52 | 124 | |
2b1e4f0e | 125 | AliMUON *pMuon = (AliMUON*) gAlice->GetModule("MUON"); |
126 | AliMUONChamber *iChamber = &(pMuon->Chamber(ch)); | |
0df3ca52 | 127 | fResponse = iChamber->ResponseModel(); |
2b1e4f0e | 128 | fSegmentation[0] = AliMUONClusterInput::Instance()->Segmentation2(0); |
129 | fSegmentation[1] = AliMUONClusterInput::Instance()->Segmentation2(1); | |
130 | //AZ fResponse = AliMUONClusterInput::Instance()->Response(); | |
0df3ca52 | 131 | |
1af223d7 | 132 | Int_t ndigits[2] = {9,9}, nShown[2] = {0}; |
cc87ebcd | 133 | if (fReco != 2) { // skip initialization for the combined cluster / track |
134 | fCathBeg = fPadBeg[0] = fPadBeg[1] = 0; | |
135 | for (Int_t i = 0; i < 2; i++) { | |
136 | for (Int_t j = 0; j < fgkDim; j++) { fUsed[i][j] = kFALSE; } | |
137 | } | |
0df3ca52 | 138 | } |
139 | ||
140 | next: | |
cc87ebcd | 141 | if (fReco == 2 && (nShown[0] || nShown[1])) return; // only one precluster for the combined finder |
1af223d7 | 142 | if (ndigits[0] == nShown[0] && ndigits[1] == nShown[1]) return; |
143 | ||
0df3ca52 | 144 | Float_t xpad, ypad, zpad, zpad0; |
0df3ca52 | 145 | Bool_t first = kTRUE; |
2b1e4f0e | 146 | if (fDebug) cout << " *** Event # " << nev << " chamber: " << ch << endl; |
0df3ca52 | 147 | fnPads[0] = fnPads[1] = 0; |
cc87ebcd | 148 | for (Int_t i = 0; i < fgkDim; i++) fPadIJ[1][i] = 0; |
2b1e4f0e | 149 | |
cc87ebcd | 150 | for (Int_t iii = fCathBeg; iii < 2; iii++) { |
0df3ca52 | 151 | Int_t cath = TMath::Odd(iii); |
1af223d7 | 152 | ndigits[cath] = AliMUONClusterInput::Instance()->NDigits(cath); |
2b1e4f0e | 153 | if (!ndigits[0] && !ndigits[1]) return; |
0df3ca52 | 154 | if (ndigits[cath] == 0) continue; |
2b1e4f0e | 155 | if (fDebug) cout << " ndigits: " << ndigits[cath] << " " << cath << endl; |
0df3ca52 | 156 | |
157 | AliMUONDigit *mdig; | |
158 | Int_t digit; | |
159 | ||
c1aed84f | 160 | Bool_t eEOC = kTRUE; // end-of-cluster |
cc87ebcd | 161 | for (digit = fPadBeg[cath]; digit < ndigits[cath]; digit++) { |
2b1e4f0e | 162 | mdig = AliMUONClusterInput::Instance()->Digit(cath,digit); |
0df3ca52 | 163 | if (first) { |
164 | // Find first unused pad | |
165 | if (fUsed[cath][digit]) continue; | |
5a051e34 | 166 | if (!fSegmentation[cath]->GetPadC(fInput->DetElemId(),mdig->PadX(),mdig->PadY(),xpad,ypad,zpad0)) { |
167 | // Handle "non-existing" pads | |
168 | fUsed[cath][digit] = kTRUE; | |
169 | continue; | |
170 | } | |
0df3ca52 | 171 | } else { |
172 | if (fUsed[cath][digit]) continue; | |
5a051e34 | 173 | if (!fSegmentation[cath]->GetPadC(fInput->DetElemId(),mdig->PadX(),mdig->PadY(),xpad,ypad,zpad)) { |
174 | // Handle "non-existing" pads | |
175 | fUsed[cath][digit] = kTRUE; | |
176 | continue; | |
177 | } | |
2b1e4f0e | 178 | if (TMath::Abs(zpad-zpad0) > 0.1) continue; // different slats |
0df3ca52 | 179 | // Find a pad overlapping with the cluster |
180 | if (!Overlap(cath,mdig)) continue; | |
181 | } | |
182 | // Add pad - recursive call | |
183 | AddPad(cath,digit); | |
2b1e4f0e | 184 | //AZ !!!!!! Temporary fix of St1 overlap regions !!!!!!!! |
185 | if (cath && ch < 2) { | |
186 | Int_t npads = fnPads[0] + fnPads[1] - 1; | |
187 | Int_t cath1 = fPadIJ[0][npads]; | |
188 | Int_t idig = TMath::Nint (fXyq[5][npads]); | |
189 | mdig = AliMUONClusterInput::Instance()->Digit(cath1,idig); | |
190 | fSegmentation[cath1]->GetPadC(fInput->DetElemId(),mdig->PadX(),mdig->PadY(),xpad,ypad,zpad); | |
191 | if (TMath::Abs(zpad-zpad0) > 0.1) zpad0 = zpad; | |
192 | } | |
c1aed84f | 193 | eEOC = kFALSE; |
0df3ca52 | 194 | if (digit >= 0) break; |
195 | } | |
c1aed84f | 196 | if (first && eEOC) { |
0df3ca52 | 197 | // No more unused pads |
198 | if (cath == 0) continue; // on cathode #0 - check #1 | |
2b1e4f0e | 199 | else return; // No more clusters |
0df3ca52 | 200 | } |
c1aed84f | 201 | if (eEOC) break; // cluster found |
0df3ca52 | 202 | first = kFALSE; |
2b1e4f0e | 203 | if (fDebug) cout << " nPads: " << fnPads[cath] << " " << nShown[cath]+fnPads[cath] << " " << cath << endl; |
0df3ca52 | 204 | } // for (Int_t iii = 0; |
205 | ||
2b1e4f0e | 206 | fZpad = zpad0; |
1af223d7 | 207 | if (fDraw) fDraw->DrawCluster(); |
2b1e4f0e | 208 | |
209 | // Use MLEM for cluster finder | |
210 | Int_t nMax = 1, localMax[100], maxPos[100]; | |
211 | Double_t maxVal[100]; | |
0df3ca52 | 212 | |
2b1e4f0e | 213 | if (CheckPrecluster(nShown)) { |
214 | BuildPixArray(); | |
215 | if (fnPads[0]+fnPads[1] > 50) nMax = FindLocalMaxima(localMax, maxVal); | |
216 | if (nMax > 1) TMath::Sort(nMax, maxVal, maxPos, kTRUE); // in decreasing order | |
217 | Int_t iSimple = 0, nInX = -1, nInY; | |
218 | PadsInXandY(nInX, nInY); | |
219 | if (fDebug) cout << "Pads in X and Y: " << nInX << " " << nInY << endl; | |
5a051e34 | 220 | if (nMax == 1 && nInX < 4 && nInY < 4) iSimple = 1; //1; // simple cluster |
2b1e4f0e | 221 | for (Int_t i=0; i<nMax; i++) { |
222 | if (nMax > 1) FindCluster(localMax, maxPos[i]); | |
223 | if (!MainLoop(iSimple)) cout << " MainLoop failed " << endl; | |
224 | if (i < nMax-1) { | |
225 | for (Int_t j=0; j<fnPads[0]+fnPads[1]; j++) { | |
226 | if (fPadIJ[1][j] == 0) continue; // pad charge was not modified | |
227 | fPadIJ[1][j] = 0; | |
228 | fXyq[2][j] = fXyq[6][j]; // use backup charge value | |
229 | } | |
230 | } | |
231 | } | |
232 | } | |
1af223d7 | 233 | if (!fDraw || fDraw->Next()) goto next; |
0df3ca52 | 234 | } |
235 | ||
236 | //_____________________________________________________________________________ | |
237 | void AliMUONClusterFinderAZ::AddPad(Int_t cath, Int_t digit) | |
238 | { | |
239 | // Add pad to the cluster | |
2b1e4f0e | 240 | AliMUONDigit *mdig = AliMUONClusterInput::Instance()->Digit(cath,digit); //AZ |
0df3ca52 | 241 | |
242 | Int_t charge = mdig->Signal(); | |
243 | // get the center of the pad | |
2b1e4f0e | 244 | Float_t xpad, ypad, zpad0; //, zpad; |
5a051e34 | 245 | if (!fSegmentation[cath]->GetPadC(fInput->DetElemId(),mdig->PadX(),mdig->PadY(),xpad,ypad,zpad0)) { // Handle "non-existing" pads |
246 | fUsed[cath][digit] = kTRUE; | |
247 | return; | |
248 | } | |
cc87ebcd | 249 | Int_t isec = fSegmentation[cath]->Sector(fInput->DetElemId(), mdig->PadX(), mdig->PadY()); |
0df3ca52 | 250 | Int_t nPads = fnPads[0] + fnPads[1]; |
251 | fXyq[0][nPads] = xpad; | |
252 | fXyq[1][nPads] = ypad; | |
253 | fXyq[2][nPads] = charge; | |
2b1e4f0e | 254 | fXyq[3][nPads] = fSegmentation[cath]->Dpx(fInput->DetElemId(),isec)/2; |
255 | fXyq[4][nPads] = fSegmentation[cath]->Dpy(fInput->DetElemId(),isec)/2; | |
0df3ca52 | 256 | fXyq[5][nPads] = digit; |
2b1e4f0e | 257 | fXyq[6][nPads] = 0; |
0df3ca52 | 258 | fPadIJ[0][nPads] = cath; |
259 | fPadIJ[1][nPads] = 0; | |
260 | fUsed[cath][digit] = kTRUE; | |
e8fb921b | 261 | if (fDebug) printf(" bbb %d %d %f %f %f %f %f %4d %3d %3d\n", nPads, cath, xpad, ypad, zpad0, fXyq[3][nPads]*2, fXyq[4][nPads]*2, charge, mdig->PadX(), mdig->PadY()); |
0df3ca52 | 262 | fnPads[cath]++; |
263 | ||
264 | // Check neighbours | |
265 | Int_t nn, ix, iy, xList[10], yList[10]; | |
266 | AliMUONDigit *mdig1; | |
267 | ||
1af223d7 | 268 | Int_t ndigits = AliMUONClusterInput::Instance()->NDigits(cath); |
2b1e4f0e | 269 | fSegmentation[cath]->Neighbours(fInput->DetElemId(),mdig->PadX(),mdig->PadY(),&nn,xList,yList); |
0df3ca52 | 270 | for (Int_t in=0; in<nn; in++) { |
271 | ix=xList[in]; | |
272 | iy=yList[in]; | |
273 | for (Int_t digit1 = 0; digit1 < ndigits; digit1++) { | |
274 | if (digit1 == digit) continue; | |
1af223d7 | 275 | mdig1 = AliMUONClusterInput::Instance()->Digit(cath,digit1); |
0df3ca52 | 276 | if (!fUsed[cath][digit1] && mdig1->PadX() == ix && mdig1->PadY() == iy) { |
2b1e4f0e | 277 | //AZ--- temporary fix on edges |
278 | //fSegmentation[cath]->GetPadC(mdig1->PadX(), mdig1->PadY(), xpad, ypad, zpad); | |
279 | //if (TMath::Abs(zpad-zpad0) > 0.5) continue; | |
280 | //AZ--- | |
0df3ca52 | 281 | fUsed[cath][digit1] = kTRUE; |
282 | // Add pad - recursive call | |
283 | AddPad(cath,digit1); | |
284 | } | |
285 | } //for (Int_t digit1 = 0; | |
286 | } // for (Int_t in=0; | |
287 | } | |
288 | ||
289 | //_____________________________________________________________________________ | |
2b1e4f0e | 290 | Bool_t AliMUONClusterFinderAZ::Overlap(Int_t cath, AliMUONDigit *mdig) |
0df3ca52 | 291 | { |
292 | // Check if the pad from one cathode overlaps with a pad | |
293 | // in the precluster on the other cathode | |
294 | ||
0df3ca52 | 295 | Float_t xpad, ypad, zpad; |
2b1e4f0e | 296 | fSegmentation[cath]->GetPadC(fInput->DetElemId(),mdig->PadX(),mdig->PadY(),xpad,ypad,zpad); |
297 | Int_t isec = fSegmentation[cath]->Sector(fInput->DetElemId(),mdig->PadX(), mdig->PadY()); | |
002920d1 | 298 | |
2b1e4f0e | 299 | Float_t xy1[4], xy12[4]; |
300 | xy1[0] = xpad - fSegmentation[cath]->Dpx(fInput->DetElemId(),isec)/2; | |
301 | xy1[1] = xy1[0] + fSegmentation[cath]->Dpx(fInput->DetElemId(),isec); | |
302 | xy1[2] = ypad - fSegmentation[cath]->Dpy(fInput->DetElemId(),isec)/2; | |
303 | xy1[3] = xy1[2] + fSegmentation[cath]->Dpy(fInput->DetElemId(),isec); | |
0df3ca52 | 304 | //cout << " ok " << fnPads[0]+fnPads[1] << xy1[0] << xy1[1] << xy1[2] << xy1[3] << endl; |
305 | ||
306 | Int_t cath1 = TMath::Even(cath); | |
307 | for (Int_t i=0; i<fnPads[0]+fnPads[1]; i++) { | |
308 | if (fPadIJ[0][i] != cath1) continue; | |
309 | if (Overlap(xy1, i, xy12, 0)) return kTRUE; | |
310 | } | |
311 | return kFALSE; | |
312 | } | |
313 | ||
314 | //_____________________________________________________________________________ | |
315 | Bool_t AliMUONClusterFinderAZ::Overlap(Float_t *xy1, Int_t iPad, Float_t *xy12, Int_t iSkip) | |
316 | { | |
317 | // Check if the pads xy1 and iPad overlap and return overlap area | |
318 | ||
319 | Float_t xy2[4]; | |
320 | xy2[0] = fXyq[0][iPad] - fXyq[3][iPad]; | |
321 | xy2[1] = fXyq[0][iPad] + fXyq[3][iPad]; | |
322 | if (xy1[0] > xy2[1]-1.e-4 || xy1[1] < xy2[0]+1.e-4) return kFALSE; | |
323 | xy2[2] = fXyq[1][iPad] - fXyq[4][iPad]; | |
324 | xy2[3] = fXyq[1][iPad] + fXyq[4][iPad]; | |
325 | if (xy1[2] > xy2[3]-1.e-4 || xy1[3] < xy2[2]+1.e-4) return kFALSE; | |
326 | if (!iSkip) return kTRUE; // just check overlap (w/out computing the area) | |
327 | xy12[0] = TMath::Max (xy1[0],xy2[0]); | |
328 | xy12[1] = TMath::Min (xy1[1],xy2[1]); | |
329 | xy12[2] = TMath::Max (xy1[2],xy2[2]); | |
330 | xy12[3] = TMath::Min (xy1[3],xy2[3]); | |
331 | return kTRUE; | |
332 | } | |
333 | ||
0df3ca52 | 334 | //_____________________________________________________________________________ |
335 | Bool_t AliMUONClusterFinderAZ::CheckPrecluster(Int_t *nShown) | |
336 | { | |
337 | // Check precluster in order to attempt to simplify it (mostly for | |
338 | // two-cathode preclusters) | |
339 | ||
2b1e4f0e | 340 | Int_t i1, i2, cath=0, digit=0; |
0df3ca52 | 341 | Float_t xy1[4], xy12[4]; |
342 | ||
343 | Int_t npad = fnPads[0] + fnPads[1]; | |
2b1e4f0e | 344 | if (npad == 1) { |
345 | // Disregard one-pad clusters (leftovers from splitting) | |
346 | nShown[0] += fnPads[0]; | |
347 | nShown[1] += fnPads[1]; | |
348 | return kFALSE; | |
349 | } | |
0df3ca52 | 350 | |
351 | // If pads have the same size take average of pads on both cathodes | |
352 | Int_t sameSize = (fnPads[0] && fnPads[1]) ? 1 : 0; | |
353 | if (sameSize) { | |
354 | Double_t xSize = -1, ySize = 0; | |
355 | for (Int_t i=0; i<npad; i++) { | |
356 | if (fXyq[2][i] < 0) continue; | |
357 | if (xSize < 0) { xSize = fXyq[3][i]; ySize = fXyq[4][i]; } | |
358 | if (TMath::Abs(xSize-fXyq[3][i]) > 1.e-4 || TMath::Abs(ySize-fXyq[4][i]) > 1.e-4) { sameSize = 0; break; } | |
359 | } | |
360 | } // if (sameSize) | |
2b1e4f0e | 361 | if (sameSize && fnPads[0] == 1 && fnPads[1] == 1) sameSize = 0; //AZ |
5a051e34 | 362 | // Handle shift by half a pad in Station 1 |
363 | if (sameSize) { | |
364 | Int_t cath0 = fPadIJ[0][0]; | |
365 | for (Int_t i = 1; i < npad; i++) { | |
366 | if (fPadIJ[0][i] == cath0) continue; | |
367 | Double_t dx = TMath::Abs ((fXyq[0][i] - fXyq[0][0]) / fXyq[3][i] / 2); | |
368 | Int_t idx = (Int_t) TMath::Abs ((fXyq[0][i] - fXyq[0][0]) / fXyq[3][i] / 2); | |
369 | if (TMath::Abs (dx - idx) > 0.001) sameSize = 0; | |
370 | break; | |
371 | } | |
372 | } // if (sameSize) | |
373 | ||
2b1e4f0e | 374 | if (sameSize && (fnPads[0] >= 2 || fnPads[1] >= 2)) { |
0df3ca52 | 375 | nShown[0] += fnPads[0]; |
376 | nShown[1] += fnPads[1]; | |
377 | fnPads[0] = fnPads[1] = 0; | |
378 | Int_t div; | |
379 | for (Int_t i=0; i<npad; i++) { | |
380 | if (fXyq[2][i] < 0) continue; // used pad | |
381 | fXyq[2][fnPads[0]] = fXyq[2][i]; | |
382 | div = 1; | |
2b1e4f0e | 383 | cath = fPadIJ[0][i]; |
0df3ca52 | 384 | for (Int_t j=i+1; j<npad; j++) { |
385 | if (fPadIJ[0][j] == fPadIJ[0][i]) continue; // same cathode | |
386 | if (TMath::Abs(fXyq[0][j]-fXyq[0][i]) > 1.e-4) continue; | |
387 | if (TMath::Abs(fXyq[1][j]-fXyq[1][i]) > 1.e-4) continue; | |
388 | fXyq[2][fnPads[0]] += fXyq[2][j]; | |
389 | div = 2; | |
390 | fXyq[2][j] = -2; | |
2b1e4f0e | 391 | if (cath) fXyq[5][fnPads[0]] = fXyq[5][j]; // save digit number for cath 0 |
0df3ca52 | 392 | break; |
393 | } | |
2b1e4f0e | 394 | // Flag that the digit from the other cathode |
395 | if (cath && div == 1) fXyq[5][fnPads[0]] = -fXyq[5][i] - 1; | |
396 | // If low pad charge take the other equal to 0 | |
397 | if (div == 1 && fXyq[2][fnPads[0]] < fResponse->ZeroSuppression() + 1.5*3) div = 2; | |
0df3ca52 | 398 | fXyq[2][fnPads[0]] /= div; |
399 | fXyq[0][fnPads[0]] = fXyq[0][i]; | |
400 | fXyq[1][fnPads[0]] = fXyq[1][i]; | |
401 | fPadIJ[0][fnPads[0]++] = 0; | |
402 | } | |
403 | } // if (sameSize) | |
404 | ||
405 | // Check if one-cathode precluster | |
406 | i1 = fnPads[0]!=0 ? 0 : 1; | |
407 | i2 = fnPads[1]!=0 ? 1 : 0; | |
408 | ||
409 | if (i1 != i2) { // two-cathode | |
410 | ||
411 | Int_t *flags = new Int_t[npad]; | |
412 | for (Int_t i=0; i<npad; i++) { flags[i] = 0; } | |
413 | ||
414 | // Check pad overlaps | |
415 | for (Int_t i=0; i<npad; i++) { | |
416 | if (fPadIJ[0][i] != i1) continue; | |
417 | xy1[0] = fXyq[0][i] - fXyq[3][i]; | |
418 | xy1[1] = fXyq[0][i] + fXyq[3][i]; | |
419 | xy1[2] = fXyq[1][i] - fXyq[4][i]; | |
420 | xy1[3] = fXyq[1][i] + fXyq[4][i]; | |
421 | for (Int_t j=0; j<npad; j++) { | |
422 | if (fPadIJ[0][j] != i2) continue; | |
423 | if (!Overlap(xy1, j, xy12, 0)) continue; | |
424 | flags[i] = flags[j] = 1; // mark overlapped pads | |
425 | } // for (Int_t j=0; | |
426 | } // for (Int_t i=0; | |
427 | ||
428 | // Check if all pads overlap | |
2b1e4f0e | 429 | Int_t nFlags=0; |
430 | for (Int_t i=0; i<npad; i++) { | |
431 | if (flags[i]) continue; | |
432 | nFlags ++; | |
1af223d7 | 433 | if (fDebug) cout << i << " " << fPadIJ[0][i] << " " << fXyq[0][i] << " " << fXyq[1][i] << endl; |
2b1e4f0e | 434 | } |
435 | if (fDebug && nFlags) cout << " nFlags = " << nFlags << endl; | |
0df3ca52 | 436 | //if (nFlags > 2 || (Float_t)nFlags / npad > 0.2) { // why 2 ??? - empirical choice |
2b1e4f0e | 437 | if (nFlags > 1) { |
0df3ca52 | 438 | for (Int_t i=0; i<npad; i++) { |
439 | if (flags[i]) continue; | |
440 | digit = TMath::Nint (fXyq[5][i]); | |
441 | cath = fPadIJ[0][i]; | |
1af223d7 | 442 | // Check for edge effect (missing pads on the other cathode) |
443 | Int_t cath1 = TMath::Even(cath), ix, iy; | |
444 | if (!fSegmentation[cath1]->GetPadI(fInput->DetElemId(),fXyq[0][i],fXyq[1][i],fZpad,ix,iy)) continue; | |
0df3ca52 | 445 | fUsed[cath][digit] = kFALSE; // release pad |
446 | fXyq[2][i] = -2; | |
447 | fnPads[cath]--; | |
448 | } | |
cc87ebcd | 449 | if (fDraw) fDraw->UpdateCluster(npad); |
0df3ca52 | 450 | } // if (nFlags > 2) |
451 | ||
452 | // Check correlations of cathode charges | |
453 | if (fnPads[0] && fnPads[1]) { // two-cathode | |
454 | Double_t sum[2]={0}; | |
455 | Int_t over[2] = {1, 1}; | |
456 | for (Int_t i=0; i<npad; i++) { | |
457 | cath = fPadIJ[0][i]; | |
458 | if (fXyq[2][i] > 0) sum[cath] += fXyq[2][i]; | |
2b1e4f0e | 459 | //AZ if (fXyq[2][i] > fResponse->MaxAdc()-1) over[cath] = 0; |
460 | if (fXyq[2][i] > fResponse->Saturation()-1) over[cath] = 0; | |
0df3ca52 | 461 | } |
2b1e4f0e | 462 | if (fDebug) cout << " Total charge: " << sum[0] << " " << sum[1] << endl; |
0df3ca52 | 463 | if ((over[0] || over[1]) && TMath::Abs(sum[0]-sum[1])/(sum[0]+sum[1])*2 > 1) { // 3 times difference |
2b1e4f0e | 464 | if (fDebug) cout << " Release " << endl; |
0df3ca52 | 465 | // Big difference |
cc87ebcd | 466 | cath = sum[0] > sum[1] ? 0 : 1; |
467 | Int_t imax = 0, imin = 0; | |
468 | Double_t cmax = -1, cmin = 9999, dxMin = 0, dyMin = 0; | |
0df3ca52 | 469 | Double_t *dist = new Double_t[npad]; |
cc87ebcd | 470 | for (Int_t i = 0; i < npad; i++) { |
471 | if (fPadIJ[0][i] != cath || fXyq[2][i] < 0) continue; | |
472 | if (fXyq[2][i] < cmin) { | |
473 | cmin = fXyq[2][i]; | |
474 | imin = i; | |
475 | } | |
0df3ca52 | 476 | if (fXyq[2][i] < cmax) continue; |
477 | cmax = fXyq[2][i]; | |
478 | imax = i; | |
479 | } | |
480 | // Arrange pads according to their distance to the max, | |
481 | // normalized to the pad size | |
cc87ebcd | 482 | for (Int_t i = 0; i < npad; i++) { |
0df3ca52 | 483 | dist[i] = 0; |
cc87ebcd | 484 | if (fPadIJ[0][i] != cath || fXyq[2][i] < 0) continue; |
0df3ca52 | 485 | if (i == imax) continue; |
cc87ebcd | 486 | Double_t dx = (fXyq[0][i] - fXyq[0][imax]) / fXyq[3][imax] / 2; |
487 | Double_t dy = (fXyq[1][i] - fXyq[1][imax]) / fXyq[4][imax] / 2; | |
488 | dist[i] = TMath::Sqrt (dx * dx + dy * dy); | |
489 | if (i == imin) { | |
e8fb921b | 490 | cmin = dist[i] + 0.001; // distance to the pad with minimum charge |
cc87ebcd | 491 | dxMin = dx; |
492 | dyMin = dy; | |
493 | } | |
0df3ca52 | 494 | } |
495 | TMath::Sort(npad, dist, flags, kFALSE); // in increasing order | |
496 | Int_t indx; | |
497 | Double_t xmax = -1; | |
cc87ebcd | 498 | for (Int_t i = 0; i < npad; i++) { |
0df3ca52 | 499 | indx = flags[i]; |
cc87ebcd | 500 | if (fPadIJ[0][indx] != cath || fXyq[2][indx] < 0) continue; |
501 | if (dist[indx] > cmin) { | |
502 | // Farther than the minimum pad | |
503 | Double_t dx = (fXyq[0][indx] - fXyq[0][imax]) / fXyq[3][imax] / 2; | |
504 | Double_t dy = (fXyq[1][indx] - fXyq[1][imax]) / fXyq[4][imax] / 2; | |
505 | dx *= dxMin; | |
506 | dy *= dyMin; | |
507 | if (dx >= 0 && dy >= 0) continue; | |
508 | if (TMath::Abs(dx) > TMath::Abs(dy) && dx >= 0) continue; | |
509 | if (TMath::Abs(dy) > TMath::Abs(dx) && dy >= 0) continue; | |
510 | } | |
511 | if (fXyq[2][indx] <= cmax || TMath::Abs(dist[indx]-xmax) < 1.e-3) { | |
0df3ca52 | 512 | // Release pads |
cc87ebcd | 513 | if (TMath::Abs(dist[indx]-xmax) < 1.e-3) |
cd747ddb | 514 | cmax = TMath::Max((Double_t)(fXyq[2][indx]),cmax); |
0df3ca52 | 515 | else cmax = fXyq[2][indx]; |
516 | xmax = dist[indx]; | |
517 | digit = TMath::Nint (fXyq[5][indx]); | |
518 | fUsed[cath][digit] = kFALSE; | |
519 | fXyq[2][indx] = -2; | |
520 | fnPads[cath]--; | |
cc87ebcd | 521 | } |
522 | } // for (Int_t i = 0; i < npad; | |
523 | ||
524 | // Check pad overlaps once more | |
525 | for (Int_t j = 0; j < npad; j++) flags[j] = 0; | |
526 | for (Int_t k = 0; k < npad; k++) { | |
527 | if (fXyq[2][k] < 0 || fPadIJ[0][k] != i1) continue; | |
528 | xy1[0] = fXyq[0][k] - fXyq[3][k]; | |
529 | xy1[1] = fXyq[0][k] + fXyq[3][k]; | |
530 | xy1[2] = fXyq[1][k] - fXyq[4][k]; | |
531 | xy1[3] = fXyq[1][k] + fXyq[4][k]; | |
532 | for (Int_t j = 0; j < npad; j++) { | |
533 | if (fXyq[2][j] < 0) continue; | |
534 | if (fPadIJ[0][j] != i2) continue; | |
535 | if (!Overlap(xy1, j, xy12, 0)) continue; | |
536 | flags[k] = flags[j] = 1; // mark overlapped pads | |
537 | } // for (Int_t j = 0; | |
538 | } // for (Int_t k = 0; | |
539 | nFlags = 0; | |
540 | for (Int_t j = 0; j < npad; j++) { | |
541 | if (fXyq[2][j] < 0 || flags[j]) continue; | |
542 | nFlags ++; | |
543 | } | |
544 | if (nFlags == fnPads[0] + fnPads[1]) { | |
545 | // No overlap | |
546 | for (Int_t j = 0; j < npad; j++) { | |
547 | if (fXyq[2][j] < 0 || fPadIJ[0][j] != cath) continue; | |
548 | fXyq[2][j] = -2; | |
549 | fnPads[cath]--; | |
0df3ca52 | 550 | } |
cc87ebcd | 551 | } |
0df3ca52 | 552 | delete [] dist; dist = 0; |
cc87ebcd | 553 | if (fDraw) fDraw->UpdateCluster(npad); |
0df3ca52 | 554 | } // TMath::Abs(sum[0]-sum[1])... |
555 | } // if (fnPads[0] && fnPads[1]) | |
556 | delete [] flags; flags = 0; | |
557 | } // if (i1 != i2) | |
558 | ||
559 | if (!sameSize) { nShown[0] += fnPads[0]; nShown[1] += fnPads[1]; } | |
560 | ||
561 | // Move released pads to the right | |
562 | Int_t beg = 0, end = npad-1, padij; | |
563 | Double_t xyq; | |
564 | while (beg < end) { | |
565 | if (fXyq[2][beg] > 0) { beg++; continue; } | |
566 | for (Int_t j=end; j>beg; j--) { | |
567 | if (fXyq[2][j] < 0) continue; | |
568 | end = j - 1; | |
569 | for (Int_t j1=0; j1<2; j1++) { | |
570 | padij = fPadIJ[j1][beg]; | |
571 | fPadIJ[j1][beg] = fPadIJ[j1][j]; | |
572 | fPadIJ[j1][j] = padij; | |
573 | } | |
574 | for (Int_t j1=0; j1<6; j1++) { | |
575 | xyq = fXyq[j1][beg]; | |
576 | fXyq[j1][beg] = fXyq[j1][j]; | |
577 | fXyq[j1][j] = xyq; | |
578 | } | |
579 | break; | |
580 | } // for (Int_t j=end; | |
581 | beg++; | |
582 | } // while | |
583 | npad = fnPads[0] + fnPads[1]; | |
2b1e4f0e | 584 | if (npad > 500) { cout << " ***** Too large cluster. Give up. " << npad << endl; return kFALSE; } |
0df3ca52 | 585 | // Back up charge value |
1af223d7 | 586 | for (Int_t j = 0; j < npad; j++) fXyq[6][j] = fXyq[2][j]; |
0df3ca52 | 587 | |
588 | return kTRUE; | |
589 | } | |
590 | ||
591 | //_____________________________________________________________________________ | |
592 | void AliMUONClusterFinderAZ::BuildPixArray() | |
593 | { | |
594 | // Build pixel array for MLEM method | |
595 | ||
596 | Int_t nPix=0, i1, i2; | |
597 | Float_t xy1[4], xy12[4]; | |
598 | AliMUONPixel *pixPtr=0; | |
599 | ||
600 | Int_t npad = fnPads[0] + fnPads[1]; | |
601 | ||
602 | // One cathode is empty | |
603 | i1 = fnPads[0]!=0 ? 0 : 1; | |
604 | i2 = fnPads[1]!=0 ? 1 : 0; | |
605 | ||
606 | // Build array of pixels on anode plane | |
607 | if (i1 == i2) { // one-cathode precluster | |
608 | for (Int_t j=0; j<npad; j++) { | |
609 | pixPtr = new AliMUONPixel(); | |
610 | for (Int_t i=0; i<2; i++) { | |
611 | pixPtr->SetCoord(i, fXyq[i][j]); // pixel coordinates | |
612 | pixPtr->SetSize(i, fXyq[i+3][j]); // pixel size | |
613 | } | |
614 | pixPtr->SetCharge(fXyq[2][j]); // charge | |
615 | fPixArray->Add((TObject*)pixPtr); | |
616 | nPix++; | |
617 | } | |
618 | } else { // two-cathode precluster | |
5a051e34 | 619 | i1 = fPadIJ[0][0]; |
620 | i2 = TMath::Even (i1); | |
621 | for (Int_t i = 0; i < npad; i++) { | |
0df3ca52 | 622 | if (fPadIJ[0][i] != i1) continue; |
623 | xy1[0] = fXyq[0][i] - fXyq[3][i]; | |
624 | xy1[1] = fXyq[0][i] + fXyq[3][i]; | |
625 | xy1[2] = fXyq[1][i] - fXyq[4][i]; | |
626 | xy1[3] = fXyq[1][i] + fXyq[4][i]; | |
5a051e34 | 627 | for (Int_t j = 1; j < npad; j++) { |
0df3ca52 | 628 | if (fPadIJ[0][j] != i2) continue; |
629 | if (!Overlap(xy1, j, xy12, 1)) continue; | |
630 | pixPtr = new AliMUONPixel(); | |
631 | for (Int_t k=0; k<2; k++) { | |
632 | pixPtr->SetCoord(k, (xy12[2*k]+xy12[2*k+1])/2); // pixel coordinates | |
633 | pixPtr->SetSize(k, xy12[2*k+1]-pixPtr->Coord(k)); // size | |
634 | } | |
635 | pixPtr->SetCharge(TMath::Min (fXyq[2][i],fXyq[2][j])); //charge | |
636 | fPixArray->Add((TObject*)pixPtr); | |
2b1e4f0e | 637 | //cout << nPix << " " << pixPtr->Coord(0) << " " << pixPtr->Size(0) << " " << pixPtr->Coord(1) << " " << pixPtr->Size(1) << " " << pixPtr->Charge() << endl; |
0df3ca52 | 638 | nPix++; |
639 | } // for (Int_t j=0; | |
640 | } // for (Int_t i=0; | |
641 | } // else | |
642 | ||
5a051e34 | 643 | Float_t xPadMin = 999, yPadMin = 999; |
644 | for (Int_t i = 0; i < npad; i++) { | |
645 | xPadMin = TMath::Min (xPadMin, fXyq[3][i]); | |
646 | yPadMin = TMath::Min (yPadMin, fXyq[4][i]); | |
647 | } | |
648 | if (fDebug) cout << xPadMin << " " << yPadMin << endl; | |
649 | ||
650 | Float_t wxmin = 999, wymin = 999; | |
651 | for (Int_t i = 0; i < nPix; i++) { | |
652 | pixPtr = (AliMUONPixel*) fPixArray->UncheckedAt(i); | |
653 | wxmin = TMath::Min ((Double_t)wxmin, pixPtr->Size(0)); | |
654 | wymin = TMath::Min ((Double_t)wymin, pixPtr->Size(1)); | |
0df3ca52 | 655 | } |
2b1e4f0e | 656 | if (fDebug) cout << wxmin << " " << wymin << endl; |
5a051e34 | 657 | wxmin = TMath::Abs (wxmin - xPadMin/2) > 0.001 ? xPadMin : xPadMin / 2; |
658 | wymin = TMath::Abs (wymin - yPadMin/2) > 0.001 ? yPadMin : yPadMin / 2; | |
659 | //wxmin = xPadMin; wymin = yPadMin; | |
0df3ca52 | 660 | |
661 | // Check if small pixel X-size | |
2b1e4f0e | 662 | AdjustPixel(wxmin, 0); |
0df3ca52 | 663 | // Check if small pixel Y-size |
2b1e4f0e | 664 | AdjustPixel(wymin, 1); |
0df3ca52 | 665 | // Check if large pixel size |
2b1e4f0e | 666 | AdjustPixel(wxmin, wymin); |
0df3ca52 | 667 | |
668 | // Remove discarded pixels | |
669 | for (Int_t i=0; i<nPix; i++) { | |
670 | pixPtr = (AliMUONPixel*) fPixArray->UncheckedAt(i); | |
671 | //pixPtr->Print(); | |
672 | if (pixPtr->Charge() < 1) { fPixArray->RemoveAt(i); delete pixPtr; }// discarded pixel | |
673 | } | |
674 | fPixArray->Compress(); | |
675 | nPix = fPixArray->GetEntriesFast(); | |
676 | ||
677 | if (nPix > npad) { | |
2b1e4f0e | 678 | if (fDebug) cout << nPix << endl; |
0df3ca52 | 679 | // Too many pixels - sort and remove pixels with the lowest signal |
680 | fPixArray->Sort(); | |
681 | for (Int_t i=npad; i<nPix; i++) { | |
682 | pixPtr = (AliMUONPixel*) fPixArray->UncheckedAt(i); | |
683 | //pixPtr->Print(); | |
684 | fPixArray->RemoveAt(i); | |
685 | delete pixPtr; | |
686 | } | |
687 | nPix = npad; | |
688 | } // if (nPix > npad) | |
689 | ||
690 | // Set pixel charges to the same value (for MLEM) | |
691 | for (Int_t i=0; i<nPix; i++) { | |
692 | pixPtr = (AliMUONPixel*) fPixArray->UncheckedAt(i); | |
693 | //pixPtr->SetCharge(10); | |
2b1e4f0e | 694 | if (fDebug) cout << i+1 << " " << pixPtr->Coord(0) << " " << pixPtr->Coord(1) << " " << pixPtr->Size(0) << " " << pixPtr->Size(1) << endl; |
0df3ca52 | 695 | } |
696 | } | |
697 | ||
698 | //_____________________________________________________________________________ | |
2b1e4f0e | 699 | void AliMUONClusterFinderAZ::AdjustPixel(Float_t width, Int_t ixy) |
0df3ca52 | 700 | { |
2b1e4f0e | 701 | // Check if some pixels have small size (adjust if necessary) |
0df3ca52 | 702 | |
703 | AliMUONPixel *pixPtr, *pixPtr1 = 0; | |
704 | Int_t ixy1 = TMath::Even(ixy); | |
705 | Int_t nPix = fPixArray->GetEntriesFast(); | |
706 | ||
707 | for (Int_t i=0; i<nPix; i++) { | |
708 | pixPtr = (AliMUONPixel*) fPixArray->UncheckedAt(i); | |
709 | if (pixPtr->Charge() < 1) continue; // discarded pixel | |
710 | if (pixPtr->Size(ixy)-width < -1.e-4) { | |
711 | // try to merge | |
2b1e4f0e | 712 | if (fDebug) cout << i << " Small X or Y: " << ixy << " " << pixPtr->Size(ixy) << " " << width << " " << pixPtr->Coord(0) << " " << pixPtr->Coord(1) << endl; |
0df3ca52 | 713 | for (Int_t j=i+1; j<nPix; j++) { |
714 | pixPtr1 = (AliMUONPixel*) fPixArray->UncheckedAt(j); | |
715 | if (pixPtr1->Charge() < 1) continue; // discarded pixel | |
716 | if (TMath::Abs(pixPtr1->Size(ixy)-width) < 1.e-4) continue; // right size | |
717 | if (TMath::Abs(pixPtr1->Coord(ixy1)-pixPtr->Coord(ixy1)) > 1.e-4) continue; // different rows/columns | |
718 | if (TMath::Abs(pixPtr1->Coord(ixy)-pixPtr->Coord(ixy)) < 2*width) { | |
719 | // merge | |
2b1e4f0e | 720 | //AZ-problem in slats for new segment. pixPtr->SetCoord(ixy, (pixPtr->Coord(ixy)+pixPtr1->Coord(ixy))/2); |
721 | Double_t tmp = pixPtr->Coord(ixy) + pixPtr1->Size(ixy) * | |
722 | TMath::Sign (1., pixPtr1->Coord(ixy) - pixPtr->Coord(ixy)); | |
723 | pixPtr->SetCoord(ixy, tmp); | |
0df3ca52 | 724 | pixPtr->SetSize(ixy, width); |
0df3ca52 | 725 | pixPtr->SetCharge(TMath::Min (pixPtr->Charge(),pixPtr1->Charge())); |
726 | pixPtr1->SetCharge(0); | |
727 | pixPtr1 = 0; | |
728 | break; | |
729 | } | |
730 | } // for (Int_t j=i+1; | |
731 | //if (!pixPtr1) { cout << " I am here!" << endl; pixPtr->SetSize(ixy, width); } // ??? | |
732 | //else if (pixPtr1->Charge() > 0.5 || i == nPix-1) { | |
733 | if (pixPtr1 || i == nPix-1) { | |
734 | // edge pixel - just increase its size | |
2b1e4f0e | 735 | if (fDebug) cout << " Edge ..." << endl; |
0df3ca52 | 736 | for (Int_t j=0; j<fnPads[0]+fnPads[1]; j++) { |
2b1e4f0e | 737 | //if (fPadIJ[0][j] != ixy1) continue; |
5a051e34 | 738 | //???-check if (TMath::Abs(pixPtr->Coord(ixy1)-fXyq[ixy1][j]) > 1.e-4) continue; |
0df3ca52 | 739 | if (pixPtr->Coord(ixy) < fXyq[ixy][j]) |
2b1e4f0e | 740 | //pixPtr->Shift(ixy, -pixPtr->Size(ixy)); |
741 | pixPtr->Shift(ixy, pixPtr->Size(ixy)-width); | |
742 | //else pixPtr->Shift(ixy, pixPtr->Size(ixy)); | |
743 | else pixPtr->Shift(ixy, -pixPtr->Size(ixy)+width); | |
0df3ca52 | 744 | pixPtr->SetSize(ixy, width); |
745 | break; | |
746 | } | |
747 | } | |
748 | } // if (pixPtr->Size(ixy)-width < -1.e-4) | |
749 | } // for (Int_t i=0; i<nPix; | |
750 | return; | |
751 | } | |
752 | ||
753 | //_____________________________________________________________________________ | |
2b1e4f0e | 754 | void AliMUONClusterFinderAZ::AdjustPixel(Float_t wxmin, Float_t wymin) |
0df3ca52 | 755 | { |
2b1e4f0e | 756 | // Check if some pixels have large size (adjust if necessary) |
0df3ca52 | 757 | |
cc87ebcd | 758 | Int_t n1[2], n2[2], iOK = 1, nPix = fPixArray->GetEntriesFast(); |
759 | AliMUONPixel *pixPtr, pix; | |
760 | Double_t xy0[2] = {9999, 9999}, wxy[2], dist[2]; | |
0df3ca52 | 761 | |
762 | // Check if large pixel size | |
cc87ebcd | 763 | for (Int_t i = 0; i < nPix; i++) { |
0df3ca52 | 764 | pixPtr = (AliMUONPixel*) fPixArray->UncheckedAt(i); |
765 | if (pixPtr->Charge() < 1) continue; // discarded pixel | |
cc87ebcd | 766 | if (pixPtr->Size(0) - wxmin < 1.e-4) { |
767 | if (xy0[0] > 9998) xy0[0] = pixPtr->Coord(0); // position of a "normal" pixel | |
768 | if (pixPtr->Size(1) - wymin < 1.e-4) { | |
769 | if (xy0[1] > 9998) xy0[1] = pixPtr->Coord(1); // position of a "normal" pixel | |
770 | continue; | |
771 | } else iOK = 0; // large pixel | |
772 | } else { | |
773 | iOK = 0; // large pixel | |
774 | if (xy0[1] > 9998 && pixPtr->Size(1) - wymin < 1.e-4) xy0[1] = pixPtr->Coord(1); // "normal" pixel | |
775 | } | |
776 | if (xy0[0] < 9998 && xy0[1] < 9998) break; | |
777 | } | |
778 | if (iOK) return; | |
779 | ||
780 | wxy[0] = wxmin; | |
781 | wxy[1] = wymin; | |
782 | //cout << xy0[0] << " " << xy0[1] << endl; | |
783 | for (Int_t i = 0; i < nPix; i++) { | |
784 | pixPtr = (AliMUONPixel*) fPixArray->UncheckedAt(i); | |
785 | if (pixPtr->Charge() < 1) continue; // discarded pixel | |
786 | n1[0] = n1[1] = 999; | |
787 | n2[0] = n2[1] = 1; | |
788 | for (Int_t j = 0; j < 2; j++) { | |
789 | if (pixPtr->Size(j) - wxy[j] < 1.e-4) continue; | |
790 | dist[j] = (pixPtr->Coord(j) - xy0[j]) / wxy[j] / 2; // normalized distance to "normal" pixel | |
791 | n2[j] = TMath::Nint (pixPtr->Size(j) / wxy[j]); | |
792 | n1[j] = n2[j] == 1 ? TMath::Nint(dist[j]) : (Int_t)dist[j]; | |
793 | } | |
794 | if (n1[0] > 998 && n1[1] > 998) continue; | |
795 | if (fDebug) cout << " Different " << pixPtr->Size(0) << " " << wxy[0] << " " | |
796 | << pixPtr->Size(1) << " " << wxy[1] <<endl; | |
797 | ||
798 | if (n2[0] > 2 || n2[1] > 2) { cout << n2[0] << " " << n2[1] << endl; AliFatal("Too large pixel."); } | |
799 | //cout << n1[0] << " " << n2[0] << " " << n1[1] << " " << n2[1] << endl; | |
800 | pix = *pixPtr; | |
801 | pix.SetSize(0, wxy[0]); pix.SetSize(1, wxy[1]); | |
802 | //pixPtr->Print(); | |
803 | for (Int_t ii = 0; ii < n2[0]; ii++) { | |
804 | if (n1[0] < 999) pix.SetCoord(0, xy0[0] + (n1[0] + TMath::Sign(1.,dist[0]) * ii) * 2 * wxy[0]); | |
805 | for (Int_t jj = 0; jj < n2[1]; jj++) { | |
806 | if (n1[1] < 999) pix.SetCoord(1, xy0[1] + (n1[1] + TMath::Sign(1.,dist[1]) * jj) * 2 * wxy[1]); | |
807 | fPixArray->Add(new AliMUONPixel(pix)); | |
808 | //pix.Print(); | |
0df3ca52 | 809 | } |
0df3ca52 | 810 | } |
cc87ebcd | 811 | pixPtr->SetCharge(0); |
812 | } // for (Int_t i = 0; i < nPix; | |
0df3ca52 | 813 | } |
814 | ||
815 | //_____________________________________________________________________________ | |
2b1e4f0e | 816 | Bool_t AliMUONClusterFinderAZ::MainLoop(Int_t iSimple) |
0df3ca52 | 817 | { |
818 | // Repeat MLEM algorithm until pixel size becomes sufficiently small | |
819 | ||
820 | TH2D *mlem; | |
821 | ||
822 | Int_t ix, iy; | |
823 | //Int_t nn, xList[10], yList[10]; | |
824 | Int_t nPix = fPixArray->GetEntriesFast(); | |
0df3ca52 | 825 | AliMUONPixel *pixPtr = 0; |
826 | Double_t *coef = 0, *probi = 0; | |
2b1e4f0e | 827 | AddVirtualPad(); // add virtual pads if necessary |
828 | Int_t npadTot = fnPads[0] + fnPads[1], npadOK = 0; | |
1af223d7 | 829 | for (Int_t i = 0; i < npadTot; i++) if (fPadIJ[1][i] == 0) npadOK++; |
830 | if (fDraw) fDraw->ResetMuon(); | |
0df3ca52 | 831 | |
832 | while (1) { | |
833 | ||
834 | mlem = (TH2D*) gROOT->FindObject("mlem"); | |
835 | if (mlem) mlem->Delete(); | |
836 | // Calculate coefficients | |
2b1e4f0e | 837 | if (fDebug) cout << " nPix, npadTot, npadOK " << nPix << " " << npadTot << " " << npadOK << endl; |
0df3ca52 | 838 | |
839 | // Calculate coefficients and pixel visibilities | |
840 | coef = new Double_t [npadTot*nPix]; | |
841 | probi = new Double_t [nPix]; | |
2b1e4f0e | 842 | for (Int_t ipix=0; ipix<nPix; ipix++) probi[ipix] = 0; |
843 | Int_t indx = 0, indx1 = 0, cath = 0; | |
844 | ||
845 | for (Int_t j=0; j<npadTot; j++) { | |
846 | indx = j*nPix; | |
847 | if (fPadIJ[1][j] == 0) { | |
0df3ca52 | 848 | cath = fPadIJ[0][j]; |
2b1e4f0e | 849 | fSegmentation[cath]->GetPadI(fInput->DetElemId(),fXyq[0][j],fXyq[1][j],fZpad,ix,iy); |
850 | fSegmentation[cath]->SetPad(fInput->DetElemId(),ix,iy); | |
851 | /* | |
852 | fSegmentation[cath]->Neighbours(fInput->DetElemId(),ix,iy,&nn,xList,yList); | |
853 | if (nn != 4) { | |
854 | cout << nn << ": "; | |
855 | for (Int_t i=0; i<nn; i++) {cout << xList[i] << " " << yList[i] << ", ";} | |
856 | cout << endl; | |
857 | } | |
858 | */ | |
859 | } | |
860 | ||
861 | for (Int_t ipix=0; ipix<nPix; ipix++) { | |
862 | indx1 = indx + ipix; | |
863 | if (fPadIJ[1][j] < 0) { coef[indx1] = 0; continue; } | |
864 | pixPtr = (AliMUONPixel*) fPixArray->UncheckedAt(ipix); | |
865 | fSegmentation[cath]->SetHit(fInput->DetElemId(),pixPtr->Coord(0),pixPtr->Coord(1),fZpad); | |
866 | coef[indx1] = fResponse->IntXY(fInput->DetElemId(),fSegmentation[cath]); | |
867 | probi[ipix] += coef[indx1]; | |
868 | } // for (Int_t ipix=0; | |
869 | } // for (Int_t j=0; | |
870 | for (Int_t ipix=0; ipix<nPix; ipix++) if (probi[ipix] < 0.01) pixPtr->SetCharge(0); // "invisible" pixel | |
0df3ca52 | 871 | |
872 | // MLEM algorithm | |
2b1e4f0e | 873 | Mlem(coef, probi, 15); |
0df3ca52 | 874 | |
cd747ddb | 875 | Double_t xylim[4] = {999, 999, 999, 999}; |
0df3ca52 | 876 | for (Int_t ipix=0; ipix<nPix; ipix++) { |
877 | pixPtr = (AliMUONPixel*) fPixArray->UncheckedAt(ipix); | |
cc87ebcd | 878 | //cout << ipix+1; pixPtr->Print(); |
0df3ca52 | 879 | for (Int_t i=0; i<4; i++) |
880 | xylim[i] = TMath::Min (xylim[i], (i%2 ? -1 : 1)*pixPtr->Coord(i/2)); | |
0df3ca52 | 881 | } |
882 | for (Int_t i=0; i<4; i++) { | |
2b1e4f0e | 883 | xylim[i] -= pixPtr->Size(i/2); if (fDebug) cout << (i%2 ? -1 : 1)*xylim[i] << " "; } |
884 | if (fDebug) cout << endl; | |
0df3ca52 | 885 | |
2b1e4f0e | 886 | // Adjust histogram to approximately the same limits as for the pads |
0df3ca52 | 887 | // (for good presentation) |
1af223d7 | 888 | if (fDraw) fDraw->AdjustHist(xylim, pixPtr); |
889 | ||
0df3ca52 | 890 | Int_t nx = TMath::Nint ((-xylim[1]-xylim[0])/pixPtr->Size(0)/2); |
891 | Int_t ny = TMath::Nint ((-xylim[3]-xylim[2])/pixPtr->Size(1)/2); | |
2b1e4f0e | 892 | |
0df3ca52 | 893 | mlem = new TH2D("mlem","mlem",nx,xylim[0],-xylim[1],ny,xylim[2],-xylim[3]); |
894 | for (Int_t ipix=0; ipix<nPix; ipix++) { | |
895 | pixPtr = (AliMUONPixel*) fPixArray->UncheckedAt(ipix); | |
896 | mlem->Fill(pixPtr->Coord(0),pixPtr->Coord(1),pixPtr->Charge()); | |
897 | } | |
1af223d7 | 898 | if (fDraw) fDraw->DrawHist("c2", mlem); |
0df3ca52 | 899 | |
900 | // Check if the total charge of pixels is too low | |
901 | Double_t qTot = 0; | |
902 | for (Int_t i=0; i<nPix; i++) { | |
903 | pixPtr = (AliMUONPixel*) fPixArray->UncheckedAt(i); | |
904 | qTot += pixPtr->Charge(); | |
905 | } | |
1af223d7 | 906 | //AZ if (qTot < 1.e-4 || npadOK < 3 && qTot < 50) { |
2b1e4f0e | 907 | if (qTot < 1.e-4 || npadOK < 3 && qTot < 7) { |
0df3ca52 | 908 | delete [] coef; delete [] probi; coef = 0; probi = 0; |
909 | fPixArray->Delete(); | |
2b1e4f0e | 910 | for (Int_t i=0; i<npadTot; i++) if (fPadIJ[1][i] == 0) fPadIJ[1][i] = -1; |
0df3ca52 | 911 | return kFALSE; |
912 | } | |
913 | ||
914 | // Plot data - expectation | |
915 | /* | |
916 | Double_t x, y, cont; | |
917 | for (Int_t j=0; j<npadTot; j++) { | |
918 | Double_t sum1 = 0; | |
919 | for (Int_t i=0; i<nPix; i++) { | |
920 | // Caculate expectation | |
921 | pixPtr = (AliMUONPixel*) fPixArray->UncheckedAt(i); | |
922 | sum1 += pixPtr->Charge()*coef[j*nPix+i]; | |
923 | } | |
2b1e4f0e | 924 | //AZsum1 = TMath::Min (sum1,(Double_t)fResponse->MaxAdc()); |
925 | sum1 = TMath::Min (sum1,(Double_t)fResponse->Saturation()); | |
0df3ca52 | 926 | x = fXyq[0][j]; |
927 | y = fXyq[1][j]; | |
928 | cath = fPadIJ[0][j]; | |
929 | Int_t ihist = cath*2; | |
930 | ix = fHist[ihist]->GetXaxis()->FindBin(x); | |
931 | iy = fHist[ihist]->GetYaxis()->FindBin(y); | |
932 | cont = fHist[ihist]->GetCellContent(ix,iy); | |
933 | if (cont == 0 && fHist[ihist+1]) { | |
934 | ihist += 1; | |
935 | ix = fHist[ihist]->GetXaxis()->FindBin(x); | |
936 | iy = fHist[ihist]->GetYaxis()->FindBin(y); | |
937 | } | |
938 | fHist[ihist]->SetBinContent(ix,iy,fXyq[2][j]-sum1); | |
939 | } | |
940 | ((TCanvas*)gROOT->FindObject("c1"))->cd(1); | |
941 | //gPad->SetTheta(55); | |
942 | //gPad->SetPhi(30); | |
943 | //mlem->Draw("lego1"); | |
944 | gPad->Modified(); | |
945 | ((TCanvas*)gROOT->FindObject("c1"))->cd(2); | |
946 | gPad->Modified(); | |
947 | */ | |
948 | ||
2b1e4f0e | 949 | if (iSimple) { |
950 | // Simple cluster - skip further passes thru EM-procedure | |
1af223d7 | 951 | //fxyMu[0][6] = fxyMu[1][6] = 9999; |
2b1e4f0e | 952 | Simple(); |
953 | delete [] coef; delete [] probi; coef = 0; probi = 0; | |
954 | fPixArray->Delete(); | |
955 | return kTRUE; | |
956 | } | |
957 | ||
0df3ca52 | 958 | // Calculate position of the center-of-gravity around the maximum pixel |
959 | Double_t xyCOG[2]; | |
960 | FindCOG(mlem, xyCOG); | |
961 | ||
962 | if (TMath::Min(pixPtr->Size(0),pixPtr->Size(1)) < 0.07 && pixPtr->Size(0) > pixPtr->Size(1)) break; | |
2b1e4f0e | 963 | //if (TMath::Min(pixPtr->Size(0),pixPtr->Size(1)) < 0.007 && pixPtr->Size(0) > pixPtr->Size(1)) break; |
0df3ca52 | 964 | //if (TMath::Min(pixPtr->Size(0),pixPtr->Size(1)) >= 0.07 || pixPtr->Size(0) < pixPtr->Size(1)) { |
965 | // Sort pixels according to the charge | |
966 | fPixArray->Sort(); | |
967 | /* | |
968 | for (Int_t i=0; i<nPix; i++) { | |
969 | pixPtr = (AliMUONPixel*) fPixArray->UncheckedAt(i); | |
970 | cout << i+1; pixPtr->Print(); | |
971 | } | |
972 | */ | |
973 | Double_t pixMin = 0.01*((AliMUONPixel*)fPixArray->UncheckedAt(0))->Charge(); | |
974 | pixMin = TMath::Min (pixMin,50.); | |
975 | ||
976 | // Decrease pixel size and shift pixels to make them centered at | |
977 | // the maximum one | |
978 | indx = (pixPtr->Size(0)>pixPtr->Size(1)) ? 0 : 1; | |
979 | Double_t width = 0, shift[2]={0}; | |
980 | ix = 1; | |
981 | for (Int_t i=0; i<4; i++) xylim[i] = 999; | |
982 | Int_t nPix1 = nPix; nPix = 0; | |
983 | for (Int_t ipix=0; ipix<nPix1; ipix++) { | |
984 | pixPtr = (AliMUONPixel*) fPixArray->UncheckedAt(ipix); | |
985 | if (nPix >= npadOK) { // too many pixels already | |
986 | fPixArray->RemoveAt(ipix); | |
987 | delete pixPtr; | |
988 | continue; | |
989 | } | |
990 | if (pixPtr->Charge() < pixMin) { // low charge | |
991 | fPixArray->RemoveAt(ipix); | |
992 | delete pixPtr; | |
993 | continue; | |
994 | } | |
995 | for (Int_t i=0; i<2; i++) { | |
996 | if (!i) { | |
997 | pixPtr->SetCharge(10); | |
998 | pixPtr->SetSize(indx, pixPtr->Size(indx)/2); | |
999 | width = -pixPtr->Size(indx); | |
1000 | pixPtr->Shift(indx, width); | |
1001 | // Shift pixel position | |
1002 | if (ix) { | |
1003 | ix = 0; | |
1004 | for (Int_t j=0; j<2; j++) { | |
1005 | shift[j] = pixPtr->Coord(j) - xyCOG[j]; | |
1006 | shift[j] -= ((Int_t)(shift[j]/pixPtr->Size(j)/2))*pixPtr->Size(j)*2; | |
1007 | } | |
1008 | //cout << ipix << " " << i << " " << shift[0] << " " << shift[1] << endl; | |
1009 | } // if (ix) | |
1010 | pixPtr->Shift(0, -shift[0]); | |
1011 | pixPtr->Shift(1, -shift[1]); | |
1012 | } else { | |
1013 | pixPtr = new AliMUONPixel(*pixPtr); | |
1014 | pixPtr->Shift(indx, -2*width); | |
1015 | fPixArray->Add((TObject*)pixPtr); | |
1016 | } // else | |
1017 | //pixPtr->Print(); | |
1018 | for (Int_t i=0; i<4; i++) | |
1019 | xylim[i] = TMath::Min (xylim[i], (i%2 ? -1 : 1)*pixPtr->Coord(i/2)); | |
1020 | } // for (Int_t i=0; i<2; | |
1021 | nPix += 2; | |
1022 | } // for (Int_t ipix=0; | |
1023 | ||
1024 | fPixArray->Compress(); | |
1025 | nPix = fPixArray->GetEntriesFast(); | |
1026 | ||
1027 | // Remove excessive pixels | |
1028 | if (nPix > npadOK) { | |
1029 | for (Int_t ipix=npadOK; ipix<nPix; ipix++) { | |
1030 | pixPtr = (AliMUONPixel*) fPixArray->UncheckedAt(ipix); | |
1031 | fPixArray->RemoveAt(ipix); | |
1032 | delete pixPtr; | |
1033 | } | |
1034 | } else { | |
1035 | pixPtr = (AliMUONPixel*) fPixArray->UncheckedAt(0); | |
1036 | // add pixels if the maximum is at the limit of pixel area | |
1037 | // start from Y-direction | |
1038 | Int_t j = 0; | |
1039 | for (Int_t i=3; i>-1; i--) { | |
1040 | if (nPix < npadOK && | |
1041 | TMath::Abs((i%2 ? -1 : 1)*xylim[i]-xyCOG[i/2]) < pixPtr->Size(i/2)) { | |
1042 | pixPtr = new AliMUONPixel(*pixPtr); | |
1043 | pixPtr->SetCoord(i/2, xyCOG[i/2]+(i%2 ? 2:-2)*pixPtr->Size(i/2)); | |
1044 | j = TMath::Even (i/2); | |
1045 | pixPtr->SetCoord(j, xyCOG[j]); | |
1046 | fPixArray->Add((TObject*)pixPtr); | |
1047 | nPix++; | |
1048 | } | |
1049 | } | |
1050 | } // else | |
1051 | ||
1052 | fPixArray->Compress(); | |
1053 | nPix = fPixArray->GetEntriesFast(); | |
1054 | delete [] coef; delete [] probi; coef = 0; probi = 0; | |
1055 | } // while (1) | |
1056 | ||
1057 | // remove pixels with low signal or low visibility | |
1058 | // Cuts are empirical !!! | |
1059 | Double_t thresh = TMath::Max (mlem->GetMaximum()/100.,1.); | |
1060 | thresh = TMath::Min (thresh,50.); | |
1061 | Double_t cmax = -1, charge = 0; | |
1062 | for (Int_t i=0; i<nPix; i++) cmax = TMath::Max (cmax,probi[i]); | |
2b1e4f0e | 1063 | //cout << thresh << " " << cmax << " " << cmax*0.9 << endl; |
0df3ca52 | 1064 | // Mark pixels which should be removed |
1065 | for (Int_t i=0; i<nPix; i++) { | |
1066 | pixPtr = (AliMUONPixel*) fPixArray->UncheckedAt(i); | |
1067 | charge = pixPtr->Charge(); | |
1068 | if (charge < thresh) pixPtr->SetCharge(-charge); | |
2b1e4f0e | 1069 | //else if (cmax > 1.91) { |
1070 | // if (probi[i] < 1.9) pixPtr->SetCharge(-charge); | |
1071 | //} | |
1072 | //AZ else if (probi[i] < cmax*0.9) pixPtr->SetCharge(-charge); | |
1073 | else if (probi[i] < cmax*0.8) pixPtr->SetCharge(-charge); | |
1074 | //cout << i << " " << pixPtr->Coord(0) << " " << pixPtr->Coord(1) << " " << charge << " " << probi[i] << endl; | |
0df3ca52 | 1075 | } |
1076 | // Move charge of removed pixels to their nearest neighbour (to keep total charge the same) | |
1077 | Int_t near = 0; | |
1078 | for (Int_t i=0; i<nPix; i++) { | |
1079 | pixPtr = (AliMUONPixel*) fPixArray->UncheckedAt(i); | |
1080 | charge = pixPtr->Charge(); | |
1081 | if (charge > 0) continue; | |
1082 | near = FindNearest(pixPtr); | |
1083 | pixPtr->SetCharge(0); | |
2b1e4f0e | 1084 | probi[i] = 0; // make it "invisible" |
0df3ca52 | 1085 | pixPtr = (AliMUONPixel*) fPixArray->UncheckedAt(near); |
2b1e4f0e | 1086 | pixPtr->SetCharge(pixPtr->Charge() + (-charge)); |
0df3ca52 | 1087 | } |
2b1e4f0e | 1088 | Mlem(coef,probi,2); |
0df3ca52 | 1089 | // Update histogram |
1090 | for (Int_t i=0; i<nPix; i++) { | |
1091 | pixPtr = (AliMUONPixel*) fPixArray->UncheckedAt(i); | |
1092 | ix = mlem->GetXaxis()->FindBin(pixPtr->Coord(0)); | |
1093 | iy = mlem->GetYaxis()->FindBin(pixPtr->Coord(1)); | |
1094 | mlem->SetBinContent(ix, iy, pixPtr->Charge()); | |
1095 | } | |
1af223d7 | 1096 | if (fDraw) fDraw->DrawHist("c2", mlem); |
0df3ca52 | 1097 | |
1af223d7 | 1098 | //fxyMu[0][6] = fxyMu[1][6] = 9999; |
0df3ca52 | 1099 | // Try to split into clusters |
1100 | Bool_t ok = kTRUE; | |
1101 | if (mlem->GetSum() < 1) ok = kFALSE; | |
1102 | else Split(mlem, coef); | |
1103 | delete [] coef; delete [] probi; coef = 0; probi = 0; | |
1104 | fPixArray->Delete(); | |
1105 | return ok; | |
1106 | } | |
1107 | ||
1108 | //_____________________________________________________________________________ | |
2b1e4f0e | 1109 | void AliMUONClusterFinderAZ::Mlem(Double_t *coef, Double_t *probi, Int_t nIter) |
0df3ca52 | 1110 | { |
1111 | // Use MLEM to find pixel charges | |
1112 | ||
1113 | Int_t nPix = fPixArray->GetEntriesFast(); | |
1114 | Int_t npad = fnPads[0] + fnPads[1]; | |
1115 | Double_t *probi1 = new Double_t [nPix]; | |
2b1e4f0e | 1116 | Double_t probMax = 0; |
0df3ca52 | 1117 | Int_t indx, indx1; |
1118 | AliMUONPixel *pixPtr; | |
1119 | ||
2b1e4f0e | 1120 | for (Int_t ipix=0; ipix<nPix; ipix++) if (probi[ipix] > probMax) probMax = probi[ipix]; |
1121 | for (Int_t iter=0; iter<nIter; iter++) { | |
0df3ca52 | 1122 | // Do iterations |
1123 | for (Int_t ipix=0; ipix<nPix; ipix++) { | |
1124 | // Correct each pixel | |
1125 | if (probi[ipix] < 0.01) continue; // skip "invisible" pixel | |
1126 | Double_t sum = 0; | |
2b1e4f0e | 1127 | //probi1[ipix] = probi[ipix]; |
1128 | probi1[ipix] = probMax; | |
0df3ca52 | 1129 | for (Int_t j=0; j<npad; j++) { |
1130 | if (fPadIJ[1][j] < 0) continue; | |
1131 | Double_t sum1 = 0; | |
1132 | indx1 = j*nPix; | |
1133 | indx = indx1 + ipix; | |
1134 | for (Int_t i=0; i<nPix; i++) { | |
1135 | // Caculate expectation | |
1136 | pixPtr = (AliMUONPixel*) fPixArray->UncheckedAt(i); | |
1137 | sum1 += pixPtr->Charge()*coef[indx1+i]; | |
1138 | } // for (Int_t i=0; | |
2b1e4f0e | 1139 | //AZ if (fXyq[2][j] > fResponse->MaxAdc()-1 && sum1 > fResponse->MaxAdc()) { probi1[ipix] -= coef[indx]; continue; } // correct for pad charge overflows |
1140 | if (fXyq[2][j] > fResponse->Saturation()-1 && sum1 > fResponse->Saturation()) { probi1[ipix] -= coef[indx]; continue; } // correct for pad charge overflows | |
0df3ca52 | 1141 | //cout << sum1 << " " << fXyq[2][j] << " " << coef[j*nPix+ipix] << endl; |
1142 | if (coef[indx] > 1.e-6) sum += fXyq[2][j]*coef[indx]/sum1; | |
1143 | } // for (Int_t j=0; | |
1144 | pixPtr = (AliMUONPixel*) fPixArray->UncheckedAt(ipix); | |
1145 | if (probi1[ipix] > 1.e-6) pixPtr->SetCharge(pixPtr->Charge()*sum/probi1[ipix]); | |
1146 | } // for (Int_t ipix=0; | |
1147 | } // for (Int_t iter=0; | |
1148 | delete [] probi1; | |
1149 | return; | |
1150 | } | |
1151 | ||
1152 | //_____________________________________________________________________________ | |
1153 | void AliMUONClusterFinderAZ::FindCOG(TH2D *mlem, Double_t *xyc) | |
1154 | { | |
1155 | // Calculate position of the center-of-gravity around the maximum pixel | |
1156 | ||
1157 | Int_t ixmax, iymax, ix, nsumx=0, nsumy=0, nsum=0; | |
1158 | Int_t i1 = -9, j1 = -9; | |
1159 | mlem->GetMaximumBin(ixmax,iymax,ix); | |
1160 | Int_t nx = mlem->GetNbinsX(); | |
1161 | Int_t ny = mlem->GetNbinsY(); | |
1162 | Double_t thresh = mlem->GetMaximum()/10; | |
1163 | Double_t x, y, cont, xq=0, yq=0, qq=0; | |
1164 | ||
1165 | for (Int_t i=TMath::Max(1,iymax-1); i<=TMath::Min(ny,iymax+1); i++) { | |
2b1e4f0e | 1166 | //for (Int_t i=TMath::Max(1,iymax-9); i<=TMath::Min(ny,iymax+9); i++) { |
0df3ca52 | 1167 | y = mlem->GetYaxis()->GetBinCenter(i); |
1168 | for (Int_t j=TMath::Max(1,ixmax-1); j<=TMath::Min(nx,ixmax+1); j++) { | |
2b1e4f0e | 1169 | //for (Int_t j=TMath::Max(1,ixmax-9); j<=TMath::Min(nx,ixmax+9); j++) { |
0df3ca52 | 1170 | cont = mlem->GetCellContent(j,i); |
1171 | if (cont < thresh) continue; | |
1172 | if (i != i1) {i1 = i; nsumy++;} | |
1173 | if (j != j1) {j1 = j; nsumx++;} | |
1174 | x = mlem->GetXaxis()->GetBinCenter(j); | |
1175 | xq += x*cont; | |
1176 | yq += y*cont; | |
1177 | qq += cont; | |
1178 | nsum++; | |
1179 | } | |
1180 | } | |
1181 | ||
1182 | Double_t cmax = 0; | |
1183 | Int_t i2 = 0, j2 = 0; | |
1184 | x = y = 0; | |
1185 | if (nsumy == 1) { | |
1186 | // one bin in Y - add one more (with the largest signal) | |
1187 | for (Int_t i=TMath::Max(1,iymax-1); i<=TMath::Min(ny,iymax+1); i++) { | |
1188 | if (i == iymax) continue; | |
1189 | for (Int_t j=TMath::Max(1,ixmax-1); j<=TMath::Min(nx,ixmax+1); j++) { | |
1190 | cont = mlem->GetCellContent(j,i); | |
1191 | if (cont > cmax) { | |
1192 | cmax = cont; | |
1193 | x = mlem->GetXaxis()->GetBinCenter(j); | |
1194 | y = mlem->GetYaxis()->GetBinCenter(i); | |
1195 | i2 = i; | |
1196 | j2 = j; | |
1197 | } | |
1198 | } | |
1199 | } | |
1200 | xq += x*cmax; | |
1201 | yq += y*cmax; | |
1202 | qq += cmax; | |
1203 | if (i2 != i1) nsumy++; | |
1204 | if (j2 != j1) nsumx++; | |
1205 | nsum++; | |
1206 | } // if (nsumy == 1) | |
1207 | ||
1208 | if (nsumx == 1) { | |
1209 | // one bin in X - add one more (with the largest signal) | |
1210 | cmax = x = y = 0; | |
1211 | for (Int_t j=TMath::Max(1,ixmax-1); j<=TMath::Min(nx,ixmax+1); j++) { | |
1212 | if (j == ixmax) continue; | |
1213 | for (Int_t i=TMath::Max(1,iymax-1); i<=TMath::Min(ny,iymax+1); i++) { | |
1214 | cont = mlem->GetCellContent(j,i); | |
1215 | if (cont > cmax) { | |
1216 | cmax = cont; | |
1217 | x = mlem->GetXaxis()->GetBinCenter(j); | |
1218 | y = mlem->GetYaxis()->GetBinCenter(i); | |
1219 | i2 = i; | |
1220 | j2 = j; | |
1221 | } | |
1222 | } | |
1223 | } | |
1224 | xq += x*cmax; | |
1225 | yq += y*cmax; | |
1226 | qq += cmax; | |
1227 | if (i2 != i1) nsumy++; | |
1228 | if (j2 != j1) nsumx++; | |
1229 | nsum++; | |
1230 | } // if (nsumx == 1) | |
1231 | ||
1232 | xyc[0] = xq/qq; xyc[1] = yq/qq; | |
2b1e4f0e | 1233 | if (fDebug) cout << xyc[0] << " " << xyc[1] << " " << qq << " " << nsum << " " << nsumx << " " << nsumy << endl; |
0df3ca52 | 1234 | return; |
1235 | } | |
1236 | ||
1237 | //_____________________________________________________________________________ | |
1238 | Int_t AliMUONClusterFinderAZ::FindNearest(AliMUONPixel *pixPtr0) | |
1239 | { | |
1240 | // Find the pixel nearest to the given one | |
1241 | // (algorithm may be not very efficient) | |
1242 | ||
1243 | Int_t nPix = fPixArray->GetEntriesFast(), imin = 0; | |
1244 | Double_t rmin = 99999, dx = 0, dy = 0, r = 0; | |
1245 | Double_t xc = pixPtr0->Coord(0), yc = pixPtr0->Coord(1); | |
1246 | AliMUONPixel *pixPtr; | |
1247 | ||
1248 | for (Int_t i=0; i<nPix; i++) { | |
1249 | pixPtr = (AliMUONPixel*) fPixArray->UncheckedAt(i); | |
1250 | if (pixPtr->Charge() < 0.5) continue; | |
1251 | dx = (xc - pixPtr->Coord(0)) / pixPtr->Size(0); | |
1252 | dy = (yc - pixPtr->Coord(1)) / pixPtr->Size(1); | |
1253 | r = dx *dx + dy * dy; | |
1254 | if (r < rmin) { rmin = r; imin = i; } | |
1255 | } | |
1256 | return imin; | |
1257 | } | |
1258 | ||
1259 | //_____________________________________________________________________________ | |
1260 | void AliMUONClusterFinderAZ::Split(TH2D *mlem, Double_t *coef) | |
1261 | { | |
1262 | // The main steering function to work with clusters of pixels in anode | |
1263 | // plane (find clusters, decouple them from each other, merge them (if | |
1264 | // necessary), pick up coupled pads, call the fitting function) | |
1265 | ||
1266 | Int_t nx = mlem->GetNbinsX(); | |
1267 | Int_t ny = mlem->GetNbinsY(); | |
1268 | Int_t nPix = fPixArray->GetEntriesFast(); | |
1269 | ||
1270 | Bool_t *used = new Bool_t[ny*nx]; | |
1271 | Double_t cont; | |
1272 | Int_t nclust = 0, indx, indx1; | |
1273 | ||
1274 | for (Int_t i=0; i<ny*nx; i++) used[i] = kFALSE; | |
1275 | ||
1276 | TObjArray *clusters[200]={0}; | |
1277 | TObjArray *pix; | |
1278 | ||
1279 | // Find clusters of histogram bins (easier to work in 2-D space) | |
1280 | for (Int_t i=1; i<=ny; i++) { | |
1281 | for (Int_t j=1; j<=nx; j++) { | |
1282 | indx = (i-1)*nx + j - 1; | |
1283 | if (used[indx]) continue; | |
1284 | cont = mlem->GetCellContent(j,i); | |
1285 | if (cont < 0.5) continue; | |
1286 | pix = new TObjArray(20); | |
1287 | used[indx] = 1; | |
1288 | pix->Add(BinToPix(mlem,j,i)); | |
1289 | AddBin(mlem, i, j, 0, used, pix); // recursive call | |
2b1e4f0e | 1290 | if (nclust >= 200) AliFatal(" Too many clusters !!!"); |
0df3ca52 | 1291 | clusters[nclust++] = pix; |
0df3ca52 | 1292 | } // for (Int_t j=1; j<=nx; j++) { |
1293 | } // for (Int_t i=1; i<=ny; | |
2b1e4f0e | 1294 | if (fDebug) cout << nclust << endl; |
0df3ca52 | 1295 | delete [] used; used = 0; |
1296 | ||
1297 | // Compute couplings between clusters and clusters to pads | |
1298 | Int_t npad = fnPads[0] + fnPads[1]; | |
1299 | ||
2b1e4f0e | 1300 | // Write out some information for algorithm development |
1301 | Int_t cath=0, npadx[2]={0}, npady[2]={0}; | |
1302 | Double_t xlow[2]={9999,9999}, xhig[2]={-9999,-9999}; | |
1303 | Double_t ylow[2]={9999,9999}, yhig[2]={-9999,-9999}; | |
1304 | for (Int_t j=0; j<npad; j++) { | |
1305 | if (fXyq[3][j] < 0) continue; // exclude virtual pads | |
1306 | cath = fPadIJ[0][j]; | |
1307 | if (fXyq[0][j] < xlow[cath]-0.001) { | |
1308 | if (fXyq[0][j]+fXyq[3][j] <= xlow[cath] && npadx[cath]) npadx[cath]++; | |
1309 | xlow[cath] = fXyq[0][j]; | |
1310 | } | |
1311 | if (fXyq[0][j] > xhig[cath]+0.001) { | |
1312 | if (fXyq[0][j]-fXyq[3][j] >= xhig[cath]) npadx[cath]++; | |
1313 | xhig[cath] = fXyq[0][j]; | |
1314 | } | |
1315 | if (fXyq[1][j] < ylow[cath]-0.001) { | |
1316 | if (fXyq[1][j]+fXyq[4][j] <= ylow[cath] && npady[cath]) npady[cath]++; | |
1317 | ylow[cath] = fXyq[1][j]; | |
1318 | } | |
1319 | if (fXyq[1][j] > yhig[cath]+0.001) { | |
1320 | if (fXyq[1][j]-fXyq[4][j] >= yhig[cath]) npady[cath]++; | |
1321 | yhig[cath] = fXyq[1][j]; | |
1322 | } | |
1323 | } | |
1324 | //if (lun1) fprintf(lun1," %4d %2d %3d %3d %3d %3d \n",gAlice->GetHeader()->GetEvent(),AliMUONClusterInput::Instance()->Chamber(), npadx[0], npadx[1], npady[0], npady[1]); | |
1325 | ||
0df3ca52 | 1326 | // Exclude pads with overflows |
1327 | for (Int_t j=0; j<npad; j++) { | |
2b1e4f0e | 1328 | //AZ if (fXyq[2][j] > fResponse->MaxAdc()-1) fPadIJ[1][j] = -5; |
1329 | if (fXyq[2][j] > fResponse->Saturation()-1) fPadIJ[1][j] = -5; | |
0df3ca52 | 1330 | else fPadIJ[1][j] = 0; |
1331 | } | |
1332 | ||
1333 | // Compute couplings of clusters to pads | |
c1aed84f | 1334 | TMatrixD *aijclupad = new TMatrixD(nclust,npad); |
1335 | *aijclupad = 0; | |
0df3ca52 | 1336 | Int_t npxclu; |
1337 | for (Int_t iclust=0; iclust<nclust; iclust++) { | |
1338 | pix = clusters[iclust]; | |
1339 | npxclu = pix->GetEntriesFast(); | |
1340 | for (Int_t i=0; i<npxclu; i++) { | |
1341 | indx = fPixArray->IndexOf(pix->UncheckedAt(i)); | |
1342 | for (Int_t j=0; j<npad; j++) { | |
2b1e4f0e | 1343 | if (fPadIJ[1][j] < 0 && fPadIJ[1][j] != -5) continue; |
343146bf | 1344 | if (coef[j*nPix+indx] < fgkCouplMin) continue; |
c1aed84f | 1345 | (*aijclupad)(iclust,j) += coef[j*nPix+indx]; |
0df3ca52 | 1346 | } |
1347 | } | |
1348 | } | |
1349 | // Compute couplings between clusters | |
c1aed84f | 1350 | TMatrixD *aijcluclu = new TMatrixD(nclust,nclust); |
1351 | *aijcluclu = 0; | |
0df3ca52 | 1352 | for (Int_t iclust=0; iclust<nclust; iclust++) { |
1353 | for (Int_t j=0; j<npad; j++) { | |
1354 | // Exclude overflows | |
1355 | if (fPadIJ[1][j] < 0) continue; | |
343146bf | 1356 | if ((*aijclupad)(iclust,j) < fgkCouplMin) continue; |
0df3ca52 | 1357 | for (Int_t iclust1=iclust+1; iclust1<nclust; iclust1++) { |
343146bf | 1358 | if ((*aijclupad)(iclust1,j) < fgkCouplMin) continue; |
c1aed84f | 1359 | (*aijcluclu)(iclust,iclust1) += |
1360 | TMath::Sqrt ((*aijclupad)(iclust,j)*(*aijclupad)(iclust1,j)); | |
0df3ca52 | 1361 | } |
1362 | } | |
1363 | } | |
1364 | for (Int_t iclust=0; iclust<nclust; iclust++) { | |
1365 | for (Int_t iclust1=iclust+1; iclust1<nclust; iclust1++) { | |
c1aed84f | 1366 | (*aijcluclu)(iclust1,iclust) = (*aijcluclu)(iclust,iclust1); |
0df3ca52 | 1367 | } |
1368 | } | |
1369 | ||
2b1e4f0e | 1370 | if (fDebug && nclust > 1) aijcluclu->Print(); |
0df3ca52 | 1371 | |
1372 | // Find groups of coupled clusters | |
1373 | used = new Bool_t[nclust]; | |
1374 | for (Int_t i=0; i<nclust; i++) used[i] = kFALSE; | |
1375 | Int_t *clustNumb = new Int_t[nclust]; | |
1376 | Int_t nCoupled, nForFit, minGroup[3], clustFit[3], nfit = 0; | |
1377 | Double_t parOk[8]; | |
1378 | ||
1379 | for (Int_t igroup=0; igroup<nclust; igroup++) { | |
1380 | if (used[igroup]) continue; | |
1381 | used[igroup] = kTRUE; | |
1382 | clustNumb[0] = igroup; | |
1383 | nCoupled = 1; | |
1384 | // Find group of coupled clusters | |
c1aed84f | 1385 | AddCluster(igroup, nclust, aijcluclu, used, clustNumb, nCoupled); // recursive |
2b1e4f0e | 1386 | if (fDebug) { |
1387 | cout << " nCoupled: " << nCoupled << endl; | |
1388 | for (Int_t i=0; i<nCoupled; i++) cout << clustNumb[i] << " "; cout << endl; | |
1389 | } | |
1390 | fnCoupled = nCoupled; | |
0df3ca52 | 1391 | |
1392 | while (nCoupled > 0) { | |
1393 | ||
1394 | if (nCoupled < 4) { | |
1395 | nForFit = nCoupled; | |
1396 | for (Int_t i=0; i<nCoupled; i++) clustFit[i] = clustNumb[i]; | |
1397 | } else { | |
1398 | // Too many coupled clusters to fit - try to decouple them | |
1399 | // Find the lowest coupling of 1, 2, min(3,nLinks/2) pixels with | |
1400 | // all the others in the group | |
1401 | for (Int_t j=0; j<3; j++) minGroup[j] = -1; | |
c1aed84f | 1402 | Double_t coupl = MinGroupCoupl(nCoupled, clustNumb, aijcluclu, minGroup); |
0df3ca52 | 1403 | |
1404 | // Flag clusters for fit | |
1405 | nForFit = 0; | |
1406 | while (minGroup[nForFit] >= 0 && nForFit < 3) { | |
2b1e4f0e | 1407 | if (fDebug) cout << clustNumb[minGroup[nForFit]] << " "; |
0df3ca52 | 1408 | clustFit[nForFit] = clustNumb[minGroup[nForFit]]; |
1409 | clustNumb[minGroup[nForFit]] -= 999; | |
1410 | nForFit++; | |
1411 | } | |
2b1e4f0e | 1412 | if (fDebug) cout << nForFit << " " << coupl << endl; |
0df3ca52 | 1413 | } // else |
1414 | ||
1415 | // Select pads for fit. | |
c1aed84f | 1416 | if (SelectPad(nCoupled, nForFit, clustNumb, clustFit, aijclupad) < 3 && nCoupled > 1) { |
0df3ca52 | 1417 | // Deselect pads |
2b1e4f0e | 1418 | for (Int_t j=0; j<npad; j++) { |
1419 | if (TMath::Abs(fPadIJ[1][j]) == 1) fPadIJ[1][j] = 0; | |
1420 | if (TMath::Abs(fPadIJ[1][j]) == -9) fPadIJ[1][j] = -5; | |
1421 | } | |
0df3ca52 | 1422 | // Merge the failed cluster candidates (with too few pads to fit) with |
1423 | // the one with the strongest coupling | |
c1aed84f | 1424 | Merge(nForFit, nCoupled, clustNumb, clustFit, clusters, aijcluclu, aijclupad); |
0df3ca52 | 1425 | } else { |
1426 | // Do the fit | |
1427 | nfit = Fit(nForFit, clustFit, clusters, parOk); | |
1428 | } | |
1429 | ||
1430 | // Subtract the fitted charges from pads with strong coupling and/or | |
1431 | // return pads for further use | |
1432 | UpdatePads(nfit, parOk); | |
1433 | ||
1434 | // Mark used pads | |
2b1e4f0e | 1435 | for (Int_t j=0; j<npad; j++) { |
1436 | if (fPadIJ[1][j] == 1) fPadIJ[1][j] = -1; | |
1437 | if (fPadIJ[1][j] == -9) fPadIJ[1][j] = -5; | |
1438 | } | |
0df3ca52 | 1439 | |
1440 | // Sort the clusters (move to the right the used ones) | |
1441 | Int_t beg = 0, end = nCoupled - 1; | |
1442 | while (beg < end) { | |
1443 | if (clustNumb[beg] >= 0) { beg++; continue; } | |
1444 | for (Int_t j=end; j>beg; j--) { | |
1445 | if (clustNumb[j] < 0) continue; | |
1446 | end = j - 1; | |
1447 | indx = clustNumb[beg]; | |
1448 | clustNumb[beg] = clustNumb[j]; | |
1449 | clustNumb[j] = indx; | |
1450 | break; | |
1451 | } | |
1452 | beg++; | |
1453 | } | |
1454 | ||
1455 | nCoupled -= nForFit; | |
1456 | if (nCoupled > 3) { | |
1457 | // Remove couplings of used clusters | |
1458 | for (Int_t iclust=nCoupled; iclust<nCoupled+nForFit; iclust++) { | |
1459 | indx = clustNumb[iclust] + 999; | |
1460 | for (Int_t iclust1=0; iclust1<nCoupled; iclust1++) { | |
1461 | indx1 = clustNumb[iclust1]; | |
c1aed84f | 1462 | (*aijcluclu)(indx,indx1) = (*aijcluclu)(indx1,indx) = 0; |
0df3ca52 | 1463 | } |
1464 | } | |
1465 | ||
1466 | // Update the remaining clusters couplings (exclude couplings from | |
1467 | // the used pads) | |
1468 | for (Int_t j=0; j<npad; j++) { | |
1469 | if (fPadIJ[1][j] != -1) continue; | |
1470 | for (Int_t iclust=0; iclust<nCoupled; iclust++) { | |
1471 | indx = clustNumb[iclust]; | |
343146bf | 1472 | if ((*aijclupad)(indx,j) < fgkCouplMin) continue; |
0df3ca52 | 1473 | for (Int_t iclust1=iclust+1; iclust1<nCoupled; iclust1++) { |
1474 | indx1 = clustNumb[iclust1]; | |
343146bf | 1475 | if ((*aijclupad)(indx1,j) < fgkCouplMin) continue; |
0df3ca52 | 1476 | // Check this |
c1aed84f | 1477 | (*aijcluclu)(indx,indx1) -= |
1478 | TMath::Sqrt ((*aijclupad)(indx,j)*(*aijclupad)(indx1,j)); | |
1479 | (*aijcluclu)(indx1,indx) = (*aijcluclu)(indx,indx1); | |
0df3ca52 | 1480 | } |
1481 | } | |
2b1e4f0e | 1482 | fPadIJ[1][j] = -8; |
0df3ca52 | 1483 | } // for (Int_t j=0; j<npad; |
1484 | } // if (nCoupled > 3) | |
1485 | } // while (nCoupled > 0) | |
1486 | } // for (Int_t igroup=0; igroup<nclust; | |
1487 | ||
c1aed84f | 1488 | //delete aij_clu; aij_clu = 0; delete aijclupad; aijclupad = 0; |
1489 | aijcluclu->Delete(); aijclupad->Delete(); | |
0df3ca52 | 1490 | for (Int_t iclust=0; iclust<nclust; iclust++) { |
1491 | pix = clusters[iclust]; | |
1492 | pix->Clear(); | |
1493 | delete pix; pix = 0; | |
1494 | } | |
1495 | delete [] clustNumb; clustNumb = 0; delete [] used; used = 0; | |
1496 | } | |
1497 | ||
1498 | //_____________________________________________________________________________ | |
1499 | void AliMUONClusterFinderAZ::AddBin(TH2D *mlem, Int_t ic, Int_t jc, Int_t mode, Bool_t *used, TObjArray *pix) | |
1500 | { | |
1501 | // Add a bin to the cluster | |
1502 | ||
1503 | Int_t nx = mlem->GetNbinsX(); | |
1504 | Int_t ny = mlem->GetNbinsY(); | |
1505 | Double_t cont1, cont = mlem->GetCellContent(jc,ic); | |
1506 | AliMUONPixel *pixPtr = 0; | |
1507 | ||
1508 | for (Int_t i=TMath::Max(ic-1,1); i<=TMath::Min(ic+1,ny); i++) { | |
1509 | for (Int_t j=TMath::Max(jc-1,1); j<=TMath::Min(jc+1,nx); j++) { | |
1510 | if (i != ic && j != jc) continue; | |
1511 | if (used[(i-1)*nx+j-1]) continue; | |
1512 | cont1 = mlem->GetCellContent(j,i); | |
1513 | if (mode && cont1 > cont) continue; | |
1514 | used[(i-1)*nx+j-1] = kTRUE; | |
1515 | if (cont1 < 0.5) continue; | |
1516 | if (pix) pix->Add(BinToPix(mlem,j,i)); | |
1517 | else { | |
1518 | pixPtr = new AliMUONPixel (mlem->GetXaxis()->GetBinCenter(j), | |
1519 | mlem->GetYaxis()->GetBinCenter(i), 0, 0, cont1); | |
1520 | fPixArray->Add((TObject*)pixPtr); | |
1521 | } | |
1522 | AddBin(mlem, i, j, mode, used, pix); // recursive call | |
1523 | } | |
1524 | } | |
1525 | } | |
1526 | ||
1527 | //_____________________________________________________________________________ | |
1528 | TObject* AliMUONClusterFinderAZ::BinToPix(TH2D *mlem, Int_t jc, Int_t ic) | |
1529 | { | |
1530 | // Translate histogram bin to pixel | |
1531 | ||
1532 | Double_t yc = mlem->GetYaxis()->GetBinCenter(ic); | |
1533 | Double_t xc = mlem->GetXaxis()->GetBinCenter(jc); | |
1534 | ||
1535 | Int_t nPix = fPixArray->GetEntriesFast(); | |
1536 | AliMUONPixel *pixPtr; | |
1537 | ||
1538 | // Compare pixel and bin positions | |
1539 | for (Int_t i=0; i<nPix; i++) { | |
1540 | pixPtr = (AliMUONPixel*) fPixArray->UncheckedAt(i); | |
1541 | if (pixPtr->Charge() < 0.5) continue; | |
1542 | if (TMath::Abs(pixPtr->Coord(0)-xc)<1.e-4 && TMath::Abs(pixPtr->Coord(1)-yc)<1.e-4) return (TObject*) pixPtr; | |
1543 | } | |
2b1e4f0e | 1544 | AliWarning(Form(" Something wrong ??? %f %f ", xc, yc)); |
0df3ca52 | 1545 | return NULL; |
1546 | } | |
1547 | ||
1548 | //_____________________________________________________________________________ | |
c1aed84f | 1549 | void AliMUONClusterFinderAZ::AddCluster(Int_t ic, Int_t nclust, TMatrixD *aijcluclu, Bool_t *used, Int_t *clustNumb, Int_t &nCoupled) |
0df3ca52 | 1550 | { |
1551 | // Add a cluster to the group of coupled clusters | |
1552 | ||
1553 | for (Int_t i=0; i<nclust; i++) { | |
1554 | if (used[i]) continue; | |
343146bf | 1555 | if ((*aijcluclu)(i,ic) < fgkCouplMin) continue; |
0df3ca52 | 1556 | used[i] = kTRUE; |
1557 | clustNumb[nCoupled++] = i; | |
c1aed84f | 1558 | AddCluster(i, nclust, aijcluclu, used, clustNumb, nCoupled); |
0df3ca52 | 1559 | } |
1560 | } | |
1561 | ||
1562 | //_____________________________________________________________________________ | |
c1aed84f | 1563 | Double_t AliMUONClusterFinderAZ::MinGroupCoupl(Int_t nCoupled, Int_t *clustNumb, TMatrixD *aijcluclu, Int_t *minGroup) |
0df3ca52 | 1564 | { |
1565 | // Find group of clusters with minimum coupling to all the others | |
1566 | ||
1567 | Int_t i123max = TMath::Min(3,nCoupled/2); | |
1568 | Int_t indx, indx1, indx2, indx3, nTot = 0; | |
1569 | Double_t *coupl1 = 0, *coupl2 = 0, *coupl3 = 0; | |
1570 | ||
1571 | for (Int_t i123=1; i123<=i123max; i123++) { | |
1572 | ||
1573 | if (i123 == 1) { | |
1574 | coupl1 = new Double_t [nCoupled]; | |
1575 | for (Int_t i=0; i<nCoupled; i++) coupl1[i] = 0; | |
1576 | } | |
1577 | else if (i123 == 2) { | |
1578 | nTot = nCoupled*nCoupled; | |
1579 | coupl2 = new Double_t [nTot]; | |
1580 | for (Int_t i=0; i<nTot; i++) coupl2[i] = 9999; | |
1581 | } else { | |
1582 | nTot = nTot*nCoupled; | |
1583 | coupl3 = new Double_t [nTot]; | |
1584 | for (Int_t i=0; i<nTot; i++) coupl3[i] = 9999; | |
1585 | } // else | |
1586 | ||
1587 | for (Int_t i=0; i<nCoupled; i++) { | |
1588 | indx1 = clustNumb[i]; | |
1589 | for (Int_t j=i+1; j<nCoupled; j++) { | |
1590 | indx2 = clustNumb[j]; | |
1591 | if (i123 == 1) { | |
c1aed84f | 1592 | coupl1[i] += (*aijcluclu)(indx1,indx2); |
1593 | coupl1[j] += (*aijcluclu)(indx1,indx2); | |
0df3ca52 | 1594 | } |
1595 | else if (i123 == 2) { | |
1596 | indx = i*nCoupled + j; | |
1597 | coupl2[indx] = coupl1[i] + coupl1[j]; | |
c1aed84f | 1598 | coupl2[indx] -= 2 * ((*aijcluclu)(indx1,indx2)); |
0df3ca52 | 1599 | } else { |
1600 | for (Int_t k=j+1; k<nCoupled; k++) { | |
1601 | indx3 = clustNumb[k]; | |
1602 | indx = i*nCoupled*nCoupled + j*nCoupled + k; | |
1603 | coupl3[indx] = coupl2[i*nCoupled+j] + coupl1[k]; | |
c1aed84f | 1604 | coupl3[indx] -= 2 * ((*aijcluclu)(indx1,indx3)+(*aijcluclu)(indx2,indx3)); |
0df3ca52 | 1605 | } |
1606 | } // else | |
1607 | } // for (Int_t j=i+1; | |
1608 | } // for (Int_t i=0; | |
1609 | } // for (Int_t i123=1; | |
1610 | ||
1611 | // Find minimum coupling | |
1612 | Double_t couplMin = 9999; | |
1613 | Int_t locMin = 0; | |
1614 | ||
1615 | for (Int_t i123=1; i123<=i123max; i123++) { | |
1616 | if (i123 == 1) { | |
1617 | locMin = TMath::LocMin(nCoupled, coupl1); | |
1618 | couplMin = coupl1[locMin]; | |
1619 | minGroup[0] = locMin; | |
1620 | delete [] coupl1; coupl1 = 0; | |
1621 | } | |
1622 | else if (i123 == 2) { | |
1623 | locMin = TMath::LocMin(nCoupled*nCoupled, coupl2); | |
1624 | if (coupl2[locMin] < couplMin) { | |
1625 | couplMin = coupl2[locMin]; | |
1626 | minGroup[0] = locMin/nCoupled; | |
1627 | minGroup[1] = locMin%nCoupled; | |
1628 | } | |
1629 | delete [] coupl2; coupl2 = 0; | |
1630 | } else { | |
1631 | locMin = TMath::LocMin(nTot, coupl3); | |
1632 | if (coupl3[locMin] < couplMin) { | |
1633 | couplMin = coupl3[locMin]; | |
1634 | minGroup[0] = locMin/nCoupled/nCoupled; | |
1635 | minGroup[1] = locMin%(nCoupled*nCoupled)/nCoupled; | |
1636 | minGroup[2] = locMin%nCoupled; | |
1637 | } | |
1638 | delete [] coupl3; coupl3 = 0; | |
1639 | } // else | |
1640 | } // for (Int_t i123=1; | |
1641 | return couplMin; | |
1642 | } | |
1643 | ||
1644 | //_____________________________________________________________________________ | |
c1aed84f | 1645 | Int_t AliMUONClusterFinderAZ::SelectPad(Int_t nCoupled, Int_t nForFit, Int_t *clustNumb, Int_t *clustFit, TMatrixD *aijclupad) |
0df3ca52 | 1646 | { |
1647 | // Select pads for fit. If too many coupled clusters, find pads giving | |
1648 | // the strongest coupling with the rest of clusters and exclude them from the fit. | |
1649 | ||
1650 | Int_t npad = fnPads[0] + fnPads[1]; | |
c1aed84f | 1651 | Double_t *padpix = 0; |
0df3ca52 | 1652 | |
1653 | if (nCoupled > 3) { | |
c1aed84f | 1654 | padpix = new Double_t[npad]; |
1655 | for (Int_t i=0; i<npad; i++) padpix[i] = 0; | |
0df3ca52 | 1656 | } |
1657 | ||
1658 | Int_t nOK = 0, indx, indx1; | |
1659 | for (Int_t iclust=0; iclust<nForFit; iclust++) { | |
1660 | indx = clustFit[iclust]; | |
1661 | for (Int_t j=0; j<npad; j++) { | |
343146bf | 1662 | if ((*aijclupad)(indx,j) < fgkCouplMin) continue; |
2b1e4f0e | 1663 | if (fPadIJ[1][j] == -5) fPadIJ[1][j] = -9; // flag overflow |
1664 | if (fPadIJ[1][j] < 0) continue; // exclude overflows and used pads | |
1665 | if (!fPadIJ[1][j]) { fPadIJ[1][j] = 1; nOK++; } // pad to be used in fit | |
0df3ca52 | 1666 | if (nCoupled > 3) { |
1667 | // Check other clusters | |
1668 | for (Int_t iclust1=0; iclust1<nCoupled; iclust1++) { | |
1669 | indx1 = clustNumb[iclust1]; | |
1670 | if (indx1 < 0) continue; | |
343146bf | 1671 | if ((*aijclupad)(indx1,j) < fgkCouplMin) continue; |
c1aed84f | 1672 | padpix[j] += (*aijclupad)(indx1,j); |
0df3ca52 | 1673 | } |
1674 | } // if (nCoupled > 3) | |
1675 | } // for (Int_t j=0; j<npad; | |
1676 | } // for (Int_t iclust=0; iclust<nForFit | |
1677 | if (nCoupled < 4) return nOK; | |
1678 | ||
1679 | Double_t aaa = 0; | |
1680 | for (Int_t j=0; j<npad; j++) { | |
343146bf | 1681 | if (padpix[j] < fgkCouplMin) continue; |
2b1e4f0e | 1682 | if (fDebug) cout << j << " " << padpix[j] << " " << fXyq[0][j] << " " << fXyq[1][j] << endl; |
c1aed84f | 1683 | aaa += padpix[j]; |
0df3ca52 | 1684 | fPadIJ[1][j] = -1; // exclude pads with strong coupling to the other clusters |
1685 | nOK--; | |
1686 | } | |
c1aed84f | 1687 | delete [] padpix; padpix = 0; |
0df3ca52 | 1688 | return nOK; |
1689 | } | |
1690 | ||
1691 | //_____________________________________________________________________________ | |
c1aed84f | 1692 | void AliMUONClusterFinderAZ::Merge(Int_t nForFit, Int_t nCoupled, Int_t *clustNumb, Int_t *clustFit, TObjArray **clusters, TMatrixD *aijcluclu, TMatrixD *aijclupad) |
0df3ca52 | 1693 | { |
1694 | // Merge the group of clusters with the one having the strongest coupling with them | |
1695 | ||
1696 | Int_t indx, indx1, npxclu, npxclu1, imax=0; | |
1697 | TObjArray *pix, *pix1; | |
1698 | Double_t couplMax; | |
1699 | ||
1700 | for (Int_t icl=0; icl<nForFit; icl++) { | |
1701 | indx = clustFit[icl]; | |
1702 | pix = clusters[indx]; | |
1703 | npxclu = pix->GetEntriesFast(); | |
1704 | couplMax = -1; | |
1705 | for (Int_t icl1=0; icl1<nCoupled; icl1++) { | |
1706 | indx1 = clustNumb[icl1]; | |
1707 | if (indx1 < 0) continue; | |
c1aed84f | 1708 | if ((*aijcluclu)(indx,indx1) > couplMax) { |
1709 | couplMax = (*aijcluclu)(indx,indx1); | |
0df3ca52 | 1710 | imax = indx1; |
1711 | } | |
1712 | } // for (Int_t icl1=0; | |
343146bf | 1713 | /*if (couplMax < fgkCouplMin) { |
0df3ca52 | 1714 | cout << " Oops " << couplMax << endl; |
c1aed84f | 1715 | aijcluclu->Print(); |
0df3ca52 | 1716 | cout << icl << " " << indx << " " << npxclu << " " << nLinks << endl; |
1717 | ::exit(0); | |
1718 | }*/ | |
1719 | // Add to it | |
1720 | pix1 = clusters[imax]; | |
1721 | npxclu1 = pix1->GetEntriesFast(); | |
1722 | // Add pixels | |
1723 | for (Int_t i=0; i<npxclu; i++) { pix1->Add(pix->UncheckedAt(i)); pix->RemoveAt(i); } | |
2b1e4f0e | 1724 | if (fDebug) cout << " New number of pixels: " << npxclu1 << " " << pix1->GetEntriesFast() << endl; |
0df3ca52 | 1725 | //Add cluster-to-cluster couplings |
c1aed84f | 1726 | //aijcluclu->Print(); |
0df3ca52 | 1727 | for (Int_t icl1=0; icl1<nCoupled; icl1++) { |
1728 | indx1 = clustNumb[icl1]; | |
1729 | if (indx1 < 0 || indx1 == imax) continue; | |
c1aed84f | 1730 | (*aijcluclu)(indx1,imax) += (*aijcluclu)(indx,indx1); |
1731 | (*aijcluclu)(imax,indx1) = (*aijcluclu)(indx1,imax); | |
0df3ca52 | 1732 | } |
c1aed84f | 1733 | (*aijcluclu)(indx,imax) = (*aijcluclu)(imax,indx) = 0; |
1734 | //aijcluclu->Print(); | |
0df3ca52 | 1735 | //Add cluster-to-pad couplings |
1736 | for (Int_t j=0; j<fnPads[0]+fnPads[1]; j++) { | |
2b1e4f0e | 1737 | if (fPadIJ[1][j] < 0 && fPadIJ[1][j] != -5) continue; // exclude used pads |
c1aed84f | 1738 | (*aijclupad)(imax,j) += (*aijclupad)(indx,j); |
1739 | (*aijclupad)(indx,j) = 0; | |
0df3ca52 | 1740 | } |
1741 | } // for (Int_t icl=0; icl<nForFit; | |
1742 | } | |
1743 | ||
1744 | //_____________________________________________________________________________ | |
1745 | Int_t AliMUONClusterFinderAZ::Fit(Int_t nfit, Int_t *clustFit, TObjArray **clusters, Double_t *parOk) | |
1746 | { | |
1747 | // Find selected clusters to selected pad charges | |
1748 | ||
1749 | TH2D *mlem = (TH2D*) gROOT->FindObject("mlem"); | |
1750 | //Int_t nx = mlem->GetNbinsX(); | |
1751 | //Int_t ny = mlem->GetNbinsY(); | |
1752 | Double_t xmin = mlem->GetXaxis()->GetXmin() - mlem->GetXaxis()->GetBinWidth(1); | |
1753 | Double_t xmax = mlem->GetXaxis()->GetXmax() + mlem->GetXaxis()->GetBinWidth(1); | |
1754 | Double_t ymin = mlem->GetYaxis()->GetXmin() - mlem->GetYaxis()->GetBinWidth(1); | |
1755 | Double_t ymax = mlem->GetYaxis()->GetXmax() + mlem->GetYaxis()->GetBinWidth(1); | |
1756 | //Double_t qmin = 0, qmax = 1; | |
2b1e4f0e | 1757 | Double_t step[3]={0.01,0.002,0.02}, xPad = 0, yPad = 99999; |
1758 | Double_t qPad[2] = {0}, xyqPad[2] = {0}; | |
0df3ca52 | 1759 | |
2b1e4f0e | 1760 | // Number of pads to use and number of virtual pads |
1761 | Int_t npads = 0, nVirtual = 0; | |
1762 | for (Int_t i=0; i<fnPads[0]+fnPads[1]; i++) { | |
1763 | if (fPadIJ[1][i] == -9 || fPadIJ[1][i] == 1) { | |
1764 | if (fPadIJ[0][i]) xyqPad[1] += fXyq[0][i] * fXyq[2][i]; | |
1765 | else xyqPad[0] += fXyq[1][i] * fXyq[2][i]; | |
1766 | qPad[fPadIJ[0][i]] += fXyq[2][i]; | |
1767 | } | |
1768 | if (fXyq[3][i] < 0) nVirtual++; | |
1769 | if (fPadIJ[1][i] != 1) continue; | |
1770 | if (fXyq[3][i] > 0) npads++; | |
1771 | if (yPad > 9999) { xPad = fXyq[0][i]; yPad = fXyq[1][i]; } | |
1772 | //if (fPadIJ[0][i]) xPad = fXyq[0][i]; | |
1773 | } | |
1774 | if (fDebug) { | |
1775 | for (Int_t i=0; i<nfit; i++) {cout << i+1 << " " << clustFit[i] << " ";} | |
1776 | cout << nfit << endl; | |
1777 | cout << " Number of pads to fit: " << npads << endl; | |
1778 | } | |
0df3ca52 | 1779 | fNpar = 0; |
1780 | fQtot = 0; | |
1781 | if (npads < 2) return 0; | |
1782 | ||
2b1e4f0e | 1783 | Int_t digit = 0, nfit0 = nfit; |
1784 | AliMUONDigit *mdig = 0; | |
1785 | Int_t tracks[3] = {-1, -1, -1}; | |
1786 | for (Int_t cath=0; cath<2; cath++) { | |
1787 | for (Int_t i=0; i<fnPads[0]+fnPads[1]; i++) { | |
1788 | if (fPadIJ[0][i] != cath) continue; | |
1789 | if (fPadIJ[1][i] != 1) continue; | |
1790 | if (fXyq[3][i] < 0) continue; // exclude virtual pads | |
1791 | digit = TMath::Nint (fXyq[5][i]); | |
1792 | if (digit >= 0) mdig = fInput->Digit(cath,digit); | |
1793 | else mdig = fInput->Digit(TMath::Even(cath),-digit-1); | |
1794 | //if (!mdig) mdig = fInput->Digit(TMath::Even(cath),digit); | |
1795 | if (!mdig) continue; // protection for cluster display | |
1796 | if (mdig->Hit() >= 0) { | |
1797 | if (tracks[0] < 0) { | |
1798 | tracks[0] = mdig->Hit(); | |
1799 | tracks[1] = mdig->Track(0); | |
1800 | } else if (mdig->Track(0) < tracks[1]) { | |
1801 | tracks[0] = mdig->Hit(); | |
1802 | tracks[1] = mdig->Track(0); | |
1803 | } | |
1804 | } | |
1805 | //AZif (mdig->Track(1)) { | |
1806 | if (mdig->Track(1) >= 0 && mdig->Track(1) != tracks[1]) { | |
1807 | if (tracks[2] < 0) tracks[2] = mdig->Track(1); | |
1808 | else tracks[2] = TMath::Min (tracks[2], mdig->Track(1)); | |
1809 | } | |
1810 | //if (!mdig) break; | |
1811 | //cout << mdig->Hit() << " " << mdig->Track(0) << " " << mdig->Track(1) <<endl; | |
1812 | } // for (Int_t i=0; | |
1813 | } // for (Int_t cath=0; | |
1814 | //cout << tracks[0] << " " << tracks[1] << " " << tracks[2] <<endl; | |
1815 | ||
1816 | // Get number of pads in X and Y | |
1817 | Int_t nInX = 0, nInY; | |
1818 | PadsInXandY(nInX, nInY); | |
1af223d7 | 1819 | //cout << " nInX and Y: " << nInX << " " << nInY << endl; |
2b1e4f0e | 1820 | |
0df3ca52 | 1821 | // Take cluster maxima as fitting seeds |
2b1e4f0e | 1822 | TObjArray *pix; |
0df3ca52 | 1823 | AliMUONPixel *pixPtr; |
2b1e4f0e | 1824 | Int_t npxclu; |
1825 | Double_t cont, cmax = 0, xseed = 0, yseed = 0, errOk[8], qq = 0; | |
f29ba3e1 | 1826 | Double_t xyseed[3][2], qseed[3], xyCand[3][2] = {{0},{0}}, sigCand[3][2] = {{0},{0}}; |
2b1e4f0e | 1827 | |
0df3ca52 | 1828 | for (Int_t ifit=1; ifit<=nfit; ifit++) { |
1829 | cmax = 0; | |
1830 | pix = clusters[clustFit[ifit-1]]; | |
1831 | npxclu = pix->GetEntriesFast(); | |
2b1e4f0e | 1832 | //qq = 0; |
0df3ca52 | 1833 | for (Int_t clu=0; clu<npxclu; clu++) { |
1834 | pixPtr = (AliMUONPixel*) pix->UncheckedAt(clu); | |
1835 | cont = pixPtr->Charge(); | |
1836 | fQtot += cont; | |
1837 | if (cont > cmax) { | |
1838 | cmax = cont; | |
1839 | xseed = pixPtr->Coord(0); | |
1840 | yseed = pixPtr->Coord(1); | |
1841 | } | |
2b1e4f0e | 1842 | qq += cont; |
1843 | /* | |
f29ba3e1 | 1844 | xyCand[ifit-1][0] += pixPtr->Coord(0) * cont; |
1845 | xyCand[ifit-1][1] += pixPtr->Coord(1) * cont; | |
1846 | sigCand[ifit-1][0] += pixPtr->Coord(0) * pixPtr->Coord(0) * cont; | |
1847 | sigCand[ifit-1][1] += pixPtr->Coord(1) * pixPtr->Coord(1) * cont; | |
2b1e4f0e | 1848 | */ |
f29ba3e1 | 1849 | xyCand[0][0] += pixPtr->Coord(0) * cont; |
1850 | xyCand[0][1] += pixPtr->Coord(1) * cont; | |
1851 | sigCand[0][0] += pixPtr->Coord(0) * pixPtr->Coord(0) * cont; | |
1852 | sigCand[0][1] += pixPtr->Coord(1) * pixPtr->Coord(1) * cont; | |
0df3ca52 | 1853 | } |
1854 | xyseed[ifit-1][0] = xseed; | |
1855 | xyseed[ifit-1][1] = yseed; | |
1856 | qseed[ifit-1] = cmax; | |
2b1e4f0e | 1857 | /* |
f29ba3e1 | 1858 | xyCand[ifit-1][0] /= qq; // <x> |
1859 | xyCand[ifit-1][1] /= qq; // <y> | |
1860 | sigCand[ifit-1][0] = sigCand[ifit-1][0]/qq - xyCand[ifit-1][0]*xyCand[ifit-1][0]; // <x^2> - <x>^2 | |
1861 | sigCand[ifit-1][0] = sigCand[ifit-1][0] > 0 ? TMath::Sqrt (sigCand[ifit-1][0]) : 0; | |
1862 | sigCand[ifit-1][1] = sigCand[ifit-1][1]/qq - xyCand[ifit-1][1]*xyCand[ifit-1][1]; // <y^2> - <y>^2 | |
1863 | sigCand[ifit-1][1] = sigCand[ifit-1][1] > 0 ? TMath::Sqrt (sigCand[ifit-1][1]) : 0; | |
1864 | cout << xyCand[ifit-1][0] << " " << xyCand[ifit-1][1] << " " << sigCand[ifit-1][0] << " " << sigCand[ifit-1][1] << endl; | |
2b1e4f0e | 1865 | */ |
0df3ca52 | 1866 | } // for (Int_t ifit=1; |
1867 | ||
f29ba3e1 | 1868 | xyCand[0][0] /= qq; // <x> |
1869 | xyCand[0][1] /= qq; // <y> | |
1870 | sigCand[0][0] = sigCand[0][0]/qq - xyCand[0][0]*xyCand[0][0]; // <x^2> - <x>^2 | |
1871 | sigCand[0][0] = sigCand[0][0] > 0 ? TMath::Sqrt (sigCand[0][0]) : 0; | |
1872 | sigCand[0][1] = sigCand[0][1]/qq - xyCand[0][1]*xyCand[0][1]; // <y^2> - <y>^2 | |
1873 | sigCand[0][1] = sigCand[0][1] > 0 ? TMath::Sqrt (sigCand[0][1]) : 0; | |
1874 | if (fDebug) cout << xyCand[0][0] << " " << xyCand[0][1] << " " << sigCand[0][0] << " " << sigCand[0][1] << endl; | |
2b1e4f0e | 1875 | |
0df3ca52 | 1876 | Int_t nDof, maxSeed[3]; |
1877 | Double_t fmin, chi2o = 9999, chi2n; | |
1878 | ||
1879 | // Try to fit with one-track hypothesis, then 2-track. If chi2/dof is | |
1880 | // lower, try 3-track (if number of pads is sufficient). | |
1881 | ||
1882 | TMath::Sort(nfit, qseed, maxSeed, kTRUE); // in decreasing order | |
1883 | nfit = TMath::Min (nfit, (npads + 1) / 3); | |
2b1e4f0e | 1884 | if (nfit > 1) { |
1885 | if (nInX < 3 && nInY < 3 || nInX == 3 && nInY < 3 || nInX < 3 && nInY == 3) nfit = 1; // not enough pads in each direction | |
1886 | } | |
1887 | //if (nfit > 1) nfit --; | |
1888 | // One pad per direction | |
1889 | //if (nInX == 1) { step[0] /= 1; xyseed[0][0] = xPad; } | |
1890 | //if (nInY == 1) { step[1] /= 1; xyseed[0][1] = yPad; } | |
0df3ca52 | 1891 | |
1892 | Double_t *gin = 0, func0, func1, param[8], param0[2][8], deriv[2][8], step0[8]; | |
1893 | Double_t shift[8], stepMax, derMax, parmin[8], parmax[8], func2[2], shift0; | |
1894 | Double_t delta[8], scMax, dder[8], estim, shiftSave = 0; | |
1895 | Int_t min, max, nCall = 0, memory[8] = {0}, nLoop, idMax = 0, iestMax = 0, nFail; | |
2b1e4f0e | 1896 | Double_t rad, dist[3] = {0}; |
0df3ca52 | 1897 | |
1898 | for (Int_t iseed=0; iseed<nfit; iseed++) { | |
1899 | ||
2b1e4f0e | 1900 | if (iseed) { for (Int_t j=0; j<fNpar; j++) param[j] = parOk[j]; } // for bounded params |
0df3ca52 | 1901 | for (Int_t j=0; j<3; j++) step0[fNpar+j] = shift[fNpar+j] = step[j]; |
1902 | param[fNpar] = xyseed[maxSeed[iseed]][0]; | |
1903 | parmin[fNpar] = xmin; | |
1904 | parmax[fNpar++] = xmax; | |
1905 | param[fNpar] = xyseed[maxSeed[iseed]][1]; | |
1906 | parmin[fNpar] = ymin; | |
1907 | parmax[fNpar++] = ymax; | |
1908 | if (fNpar > 2) { | |
1909 | param[fNpar] = fNpar == 4 ? 0.5 : 0.3; | |
1910 | parmin[fNpar] = 0; | |
1911 | parmax[fNpar++] = 1; | |
1912 | } | |
5a051e34 | 1913 | if (iseed) { for (Int_t j=0; j<fNpar; j++) param0[1][j] = 0; } |
0df3ca52 | 1914 | |
1915 | // Try new algorithm | |
1916 | min = nLoop = 1; stepMax = func2[1] = derMax = 999999; nFail = 0; | |
1917 | ||
1918 | while (1) { | |
1919 | max = !min; | |
30178c30 | 1920 | Fcn1(fNpar, gin, func0, param, 1); nCall++; |
0df3ca52 | 1921 | //cout << " Func: " << func0 << endl; |
1922 | ||
1923 | func2[max] = func0; | |
1924 | for (Int_t j=0; j<fNpar; j++) { | |
1925 | param0[max][j] = param[j]; | |
1926 | delta[j] = step0[j]; | |
1927 | param[j] += delta[j] / 10; | |
1928 | if (j > 0) param[j-1] -= delta[j-1] / 10; | |
30178c30 | 1929 | Fcn1(fNpar, gin, func1, param, 1); nCall++; |
0df3ca52 | 1930 | deriv[max][j] = (func1 - func0) / delta[j] * 10; // first derivative |
1931 | //cout << j << " " << deriv[max][j] << endl; | |
1932 | dder[j] = param0[0][j] != param0[1][j] ? (deriv[0][j] - deriv[1][j]) / | |
1933 | (param0[0][j] - param0[1][j]) : 0; // second derivative | |
1934 | } | |
1935 | param[fNpar-1] -= delta[fNpar-1] / 10; | |
2b1e4f0e | 1936 | if (nCall > 2000) break; |
0df3ca52 | 1937 | |
1938 | min = func2[0] < func2[1] ? 0 : 1; | |
1939 | nFail = min == max ? 0 : nFail + 1; | |
1940 | ||
1941 | stepMax = derMax = estim = 0; | |
1942 | for (Int_t j=0; j<fNpar; j++) { | |
1943 | // Estimated distance to minimum | |
1944 | shift0 = shift[j]; | |
1945 | if (nLoop == 1) shift[j] = TMath::Sign (step0[j], -deriv[max][j]); // first step | |
1946 | else if (TMath::Abs(deriv[0][j]) < 1.e-3 && TMath::Abs(deriv[1][j]) < 1.e-3) shift[j] = 0; | |
1947 | else if (deriv[min][j]*deriv[!min][j] > 0 && TMath::Abs(deriv[min][j]) > TMath::Abs(deriv[!min][j]) | |
2b1e4f0e | 1948 | //|| TMath::Abs(deriv[0][j]-deriv[1][j]) < 1.e-3) { |
1949 | || TMath::Abs(deriv[0][j]-deriv[1][j]) < 1.e-3 || TMath::Abs(dder[j]) < 1.e-6) { | |
0df3ca52 | 1950 | shift[j] = -TMath::Sign (shift[j], (func2[0]-func2[1]) * (param0[0][j]-param0[1][j])); |
1951 | if (min == max) { | |
1952 | if (memory[j] > 1) { shift[j] *= 2; } //cout << " Memory " << memory[j] << " " << shift[j] << endl; } | |
1953 | memory[j]++; | |
1954 | } | |
1955 | } else { | |
2b1e4f0e | 1956 | shift[j] = dder[j] != 0 ? -deriv[min][j] / dder[j] : 0; |
0df3ca52 | 1957 | memory[j] = 0; |
1958 | } | |
1959 | if (TMath::Abs(shift[j])/step0[j] > estim) { | |
1960 | estim = TMath::Abs(shift[j])/step0[j]; | |
1961 | iestMax = j; | |
1962 | } | |
1963 | ||
1964 | // Too big step | |
1965 | if (TMath::Abs(shift[j])/step0[j] > 10) shift[j] = TMath::Sign(10.,shift[j]) * step0[j]; // | |
1966 | ||
1967 | // Failed to improve minimum | |
1968 | if (min != max) { | |
1969 | memory[j] = 0; | |
1970 | param[j] = param0[min][j]; | |
1971 | if (TMath::Abs(shift[j]+shift0) > 0.1*step0[j]) shift[j] = (shift[j] + shift0) / 2; | |
1972 | else shift[j] /= -2; | |
1973 | } | |
1974 | ||
1975 | // Too big step | |
1976 | if (TMath::Abs(shift[j]*deriv[min][j]) > func2[min]) | |
1977 | shift[j] = TMath::Sign (func2[min]/deriv[min][j], shift[j]); | |
1978 | ||
1979 | // Introduce step relaxation factor | |
1980 | if (memory[j] < 3) { | |
1981 | scMax = 1 + 4 / TMath::Max(nLoop/2.,1.); | |
1982 | if (TMath::Abs(shift0) > 0 && TMath::Abs(shift[j]/shift0) > scMax) | |
1983 | shift[j] = TMath::Sign (shift0*scMax, shift[j]); | |
1984 | } | |
1985 | param[j] += shift[j]; | |
2b1e4f0e | 1986 | //AZ Check parameter limits 27-12-2004 |
1987 | if (param[j] < parmin[j]) { | |
1988 | shift[j] = parmin[j] - param[j]; | |
1989 | param[j] = parmin[j]; | |
1990 | } else if (param[j] > parmax[j]) { | |
1991 | shift[j] = parmax[j] - param[j]; | |
1992 | param[j] = parmax[j]; | |
1993 | } | |
0df3ca52 | 1994 | //cout << " xxx " << j << " " << shift[j] << " " << param[j] << endl; |
1995 | stepMax = TMath::Max (stepMax, TMath::Abs(shift[j]/step0[j])); | |
1996 | if (TMath::Abs(deriv[min][j]) > derMax) { | |
1997 | idMax = j; | |
1998 | derMax = TMath::Abs (deriv[min][j]); | |
1999 | } | |
2000 | } // for (Int_t j=0; j<fNpar; | |
2001 | //cout << max << " " << func2[min] << " " << derMax << " " << stepMax << " " << estim << " " << iestMax << " " << nCall << endl; | |
2b1e4f0e | 2002 | if (estim < 1 && derMax < 2 || nLoop > 150) break; // minimum was found |
0df3ca52 | 2003 | |
2004 | nLoop++; | |
2005 | // Check for small step | |
2006 | if (shift[idMax] == 0) { shift[idMax] = step0[idMax]/10; param[idMax] += shift[idMax]; continue; } | |
2007 | if (!memory[idMax] && derMax > 0.5 && nLoop > 10) { | |
2008 | //cout << " ok " << deriv[min][idMax] << " " << deriv[!min][idMax] << " " << dder[idMax]*shift[idMax] << " " << shift[idMax] << endl; | |
2009 | if (dder[idMax] != 0 && TMath::Abs(deriv[min][idMax]/dder[idMax]/shift[idMax]) > 10) { | |
2010 | if (min == max) dder[idMax] = -dder[idMax]; | |
2011 | shift[idMax] = -deriv[min][idMax] / dder[idMax] / 10; | |
2012 | param[idMax] += shift[idMax]; | |
2013 | stepMax = TMath::Max (stepMax, TMath::Abs(shift[idMax])/step0[idMax]); | |
2014 | //cout << shift[idMax] << " " << param[idMax] << endl; | |
2015 | if (min == max) shiftSave = shift[idMax]; | |
2016 | } | |
2017 | if (nFail > 10) { | |
2018 | param[idMax] -= shift[idMax]; | |
2019 | shift[idMax] = 4 * shiftSave * (gRandom->Rndm(0) - 0.5); | |
2020 | param[idMax] += shift[idMax]; | |
2021 | //cout << shift[idMax] << endl; | |
2022 | } | |
2023 | } | |
2024 | } // while (1) | |
2025 | fmin = func2[min]; | |
2026 | ||
2b1e4f0e | 2027 | nDof = npads - fNpar + nVirtual; |
2028 | if (!nDof) nDof++; | |
2029 | chi2n = fmin / nDof; | |
2030 | if (fDebug) cout << " Chi2 " << chi2n << " " << fNpar << endl; | |
0df3ca52 | 2031 | |
2032 | if (chi2n*1.2+1.e-6 > chi2o ) { fNpar -= 3; break; } | |
2b1e4f0e | 2033 | |
0df3ca52 | 2034 | // Save parameters and errors |
2b1e4f0e | 2035 | |
2036 | if (nInX == 1 && qPad[1] > 1) { | |
2037 | // One pad per direction | |
2038 | xPad = xyqPad[1] / qPad[1]; // take COG for this case | |
2039 | for (Int_t i=0; i<fNpar; i++) if (i == 0 || i == 2 || i == 5) param0[min][i] = xPad; | |
2040 | } | |
2041 | if (nInY == 1 && qPad[0] > 1) { | |
2042 | // One pad per direction | |
2043 | yPad = xyqPad[0] / qPad[0]; // take COG for this case | |
2044 | for (Int_t i=0; i<fNpar; i++) if (i == 1 || i == 3 || i == 6) param0[min][i] = yPad; | |
2045 | } | |
2046 | ||
2047 | /* | |
2048 | if (iseed > 0) { | |
2049 | // Find distance to the nearest neighbour | |
2050 | dist[0] = dist[1] = TMath::Sqrt ((param0[min][0]-param0[min][2])* | |
2051 | (param0[min][0]-param0[min][2]) | |
2052 | +(param0[min][1]-param0[min][3])* | |
2053 | (param0[min][1]-param0[min][3])); | |
2054 | if (iseed > 1) { | |
2055 | dist[2] = TMath::Sqrt ((param0[min][0]-param0[min][5])* | |
2056 | (param0[min][0]-param0[min][5]) | |
2057 | +(param0[min][1]-param0[min][6])* | |
2058 | (param0[min][1]-param0[min][6])); | |
2059 | rad = TMath::Sqrt ((param0[min][2]-param0[min][5])* | |
2060 | (param0[min][2]-param0[min][5]) | |
2061 | +(param0[min][3]-param0[min][6])* | |
2062 | (param0[min][3]-param0[min][6])); | |
2063 | if (dist[2] < dist[0]) dist[0] = dist[2]; | |
2064 | if (rad < dist[1]) dist[1] = rad; | |
2065 | if (rad < dist[2]) dist[2] = rad; | |
2066 | } | |
2067 | cout << dist[0] << " " << dist[1] << " " << dist[2] << endl; | |
2068 | if (dist[TMath::LocMin(iseed+1,dist)] < 1.) { fNpar -= 3; break; } | |
2069 | } | |
2070 | */ | |
2071 | ||
0df3ca52 | 2072 | for (Int_t i=0; i<fNpar; i++) { |
2073 | parOk[i] = param0[min][i]; | |
2074 | errOk[i] = fmin; | |
2b1e4f0e | 2075 | // Bounded params |
2076 | parOk[i] = TMath::Max (parOk[i], parmin[i]); | |
2077 | parOk[i] = TMath::Min (parOk[i], parmax[i]); | |
0df3ca52 | 2078 | } |
2079 | ||
0df3ca52 | 2080 | chi2o = chi2n; |
2081 | if (fmin < 0.1) break; // !!!??? | |
2082 | } // for (Int_t iseed=0; | |
2083 | ||
2b1e4f0e | 2084 | if (fDebug) { |
2085 | for (Int_t i=0; i<fNpar; i++) { | |
2086 | //if (i == 4 || i == 7) continue; | |
2087 | if (i == 4 || i == 7) { | |
2088 | if (i == 7 || i == 4 && fNpar < 7) cout << parOk[i] << endl; | |
2089 | else cout << parOk[i] * (1-parOk[7]) << endl; | |
2090 | continue; | |
2091 | } | |
2092 | cout << parOk[i] << " " << errOk[i] << endl; | |
2093 | } | |
0df3ca52 | 2094 | } |
2095 | nfit = (fNpar + 1) / 3; | |
2b1e4f0e | 2096 | dist[0] = dist[1] = dist[2] = 0; |
2097 | ||
2098 | if (nfit > 1) { | |
2099 | // Find distance to the nearest neighbour | |
2100 | dist[0] = dist[1] = TMath::Sqrt ((parOk[0]-parOk[2])* | |
2101 | (parOk[0]-parOk[2]) | |
2102 | +(parOk[1]-parOk[3])* | |
2103 | (parOk[1]-parOk[3])); | |
2104 | if (nfit > 2) { | |
2105 | dist[2] = TMath::Sqrt ((parOk[0]-parOk[5])* | |
2106 | (parOk[0]-parOk[5]) | |
2107 | +(parOk[1]-parOk[6])* | |
2108 | (parOk[1]-parOk[6])); | |
2109 | rad = TMath::Sqrt ((parOk[2]-parOk[5])* | |
2110 | (parOk[2]-parOk[5]) | |
2111 | +(parOk[3]-parOk[6])* | |
2112 | (parOk[3]-parOk[6])); | |
2113 | if (dist[2] < dist[0]) dist[0] = dist[2]; | |
2114 | if (rad < dist[1]) dist[1] = rad; | |
2115 | if (rad < dist[2]) dist[2] = rad; | |
2116 | } | |
2117 | } | |
2118 | ||
1af223d7 | 2119 | Int_t indx; |
2b1e4f0e | 2120 | fnPads[1] -= nVirtual; |
cc87ebcd | 2121 | if (!fDraw) { |
2122 | Double_t coef = 0; | |
2123 | //for (Int_t j=0; j<nfit; j++) { | |
2124 | for (Int_t j=nfit-1; j>=0; j--) { | |
2125 | indx = j<2 ? j*2 : j*2+1; | |
2126 | if (nfit == 1) coef = 1; | |
2127 | else coef = j==nfit-1 ? parOk[indx+2] : 1-coef; | |
2128 | coef = TMath::Max (coef, 0.); | |
2129 | if (nfit == 3 && j < 2) coef = j==1 ? coef*parOk[indx+2] : coef - parOk[7]; | |
2130 | coef = TMath::Max (coef, 0.); | |
2131 | AddRawCluster (parOk[indx], parOk[indx+1], coef*fQtot, errOk[indx], nfit0+10*nfit, tracks, | |
2132 | //sigCand[maxSeed[j]][0], sigCand[maxSeed[j]][1]); | |
2133 | //sigCand[0][0], sigCand[0][1], dist[j]); | |
2134 | sigCand[0][0], sigCand[0][1], dist[TMath::LocMin(nfit,dist)]); | |
2135 | } | |
2136 | } else fDraw->FillMuon(nfit, parOk, errOk); | |
0df3ca52 | 2137 | return nfit; |
2138 | } | |
2139 | ||
2140 | //_____________________________________________________________________________ | |
30178c30 | 2141 | void AliMUONClusterFinderAZ::Fcn1(Int_t & /*npar*/, Double_t * /*gin*/, Double_t &f, Double_t *par, Int_t /*iflag*/) |
0df3ca52 | 2142 | { |
2143 | // Fit for one track | |
2b1e4f0e | 2144 | //AZ for Muinuit AliMUONClusterFinderAZ& c = *(AliMUONClusterFinderAZ::fgClusterFinder); |
2145 | AliMUONClusterFinderAZ& c = *this; //AZ | |
0df3ca52 | 2146 | |
2147 | Int_t cath, ix, iy, indx, npads=0; | |
2b1e4f0e | 2148 | Double_t charge, delta, coef=0, chi2=0, qTot = 0; |
0df3ca52 | 2149 | for (Int_t j=0; j<c.fnPads[0]+c.fnPads[1]; j++) { |
2150 | if (c.fPadIJ[1][j] != 1) continue; | |
2151 | cath = c.fPadIJ[0][j]; | |
2b1e4f0e | 2152 | if (c.fXyq[3][j] > 0) npads++; // exclude virtual pads |
2153 | qTot += c.fXyq[2][j]; | |
2154 | c.fSegmentation[cath]->GetPadI(fInput->DetElemId(),c.fXyq[0][j],c.fXyq[1][j],c.fZpad,ix,iy); | |
2155 | c.fSegmentation[cath]->SetPad(fInput->DetElemId(),ix,iy); | |
0df3ca52 | 2156 | charge = 0; |
2157 | for (Int_t i=c.fNpar/3; i>=0; i--) { // sum over tracks | |
2158 | indx = i<2 ? 2*i : 2*i+1; | |
2b1e4f0e | 2159 | c.fSegmentation[cath]->SetHit(fInput->DetElemId(),par[indx],par[indx+1],c.fZpad); |
2160 | //charge += c.fResponse->IntXY(fInput->DetElemId(),c.fSegmentation[cath])*par[icl*3+2]; | |
0df3ca52 | 2161 | if (c.fNpar == 2) coef = 1; |
2162 | else coef = i==c.fNpar/3 ? par[indx+2] : 1-coef; | |
2b1e4f0e | 2163 | coef = TMath::Max (coef, 0.); |
0df3ca52 | 2164 | if (c.fNpar == 8 && i < 2) coef = i==1 ? coef*par[indx+2] : coef - par[7]; |
2b1e4f0e | 2165 | coef = TMath::Max (coef, 0.); |
2166 | charge += c.fResponse->IntXY(fInput->DetElemId(),c.fSegmentation[cath])*coef; | |
0df3ca52 | 2167 | } |
2168 | charge *= c.fQtot; | |
2169 | //if (c.fXyq[2][j] > c.fResponse->MaxAdc()-1 && charge > | |
2170 | // c.fResponse->MaxAdc()) charge = c.fResponse->MaxAdc(); | |
2171 | delta = charge - c.fXyq[2][j]; | |
2b1e4f0e | 2172 | delta *= delta; |
2173 | delta /= c.fXyq[2][j]; | |
2174 | //if (cath) delta /= 5; // just for test | |
2175 | chi2 += delta; | |
0df3ca52 | 2176 | } // for (Int_t j=0; |
2177 | f = chi2; | |
2b1e4f0e | 2178 | Double_t qAver = qTot/npads; //(c.fnPads[0]+c.fnPads[1]); |
0df3ca52 | 2179 | f = chi2/qAver; |
2180 | } | |
2181 | ||
2182 | //_____________________________________________________________________________ | |
6aaf81e6 | 2183 | void AliMUONClusterFinderAZ::UpdatePads(Int_t /*nfit*/, Double_t *par) |
0df3ca52 | 2184 | { |
2185 | // Subtract the fitted charges from pads with strong coupling | |
2186 | ||
2187 | Int_t cath, ix, iy, indx; | |
2188 | Double_t charge, coef=0; | |
2189 | for (Int_t j=0; j<fnPads[0]+fnPads[1]; j++) { | |
2190 | if (fPadIJ[1][j] != -1) continue; | |
2191 | if (fNpar != 0) { | |
2192 | cath = fPadIJ[0][j]; | |
2b1e4f0e | 2193 | fSegmentation[cath]->GetPadI(fInput->DetElemId(),fXyq[0][j],fXyq[1][j],fZpad,ix,iy); |
2194 | fSegmentation[cath]->SetPad(fInput->DetElemId(),ix,iy); | |
0df3ca52 | 2195 | charge = 0; |
2196 | for (Int_t i=fNpar/3; i>=0; i--) { // sum over tracks | |
2197 | indx = i<2 ? 2*i : 2*i+1; | |
2b1e4f0e | 2198 | fSegmentation[cath]->SetHit(fInput->DetElemId(),par[indx],par[indx+1],fZpad); |
0df3ca52 | 2199 | if (fNpar == 2) coef = 1; |
2200 | else coef = i==fNpar/3 ? par[indx+2] : 1-coef; | |
2b1e4f0e | 2201 | coef = TMath::Max (coef, 0.); |
0df3ca52 | 2202 | if (fNpar == 8 && i < 2) coef = i==1 ? coef*par[indx+2] : coef - par[7]; |
2b1e4f0e | 2203 | coef = TMath::Max (coef, 0.); |
2204 | charge += fResponse->IntXY(fInput->DetElemId(),fSegmentation[cath])*coef; | |
0df3ca52 | 2205 | } |
2206 | charge *= fQtot; | |
2207 | fXyq[2][j] -= charge; | |
2208 | } // if (fNpar != 0) | |
2209 | if (fXyq[2][j] > fResponse->ZeroSuppression()) fPadIJ[1][j] = 0; // return pad for further using | |
2210 | } // for (Int_t j=0; | |
2211 | } | |
2212 | ||
2213 | //_____________________________________________________________________________ | |
30178c30 | 2214 | Bool_t AliMUONClusterFinderAZ::TestTrack(Int_t /*t*/) const { |
0df3ca52 | 2215 | // Test if track was user selected |
2216 | return kTRUE; | |
2217 | /* | |
2218 | if (fTrack[0]==-1 || fTrack[1]==-1) { | |
2219 | return kTRUE; | |
2220 | } else if (t==fTrack[0] || t==fTrack[1]) { | |
2221 | return kTRUE; | |
2222 | } else { | |
2223 | return kFALSE; | |
2224 | } | |
2225 | */ | |
2226 | } | |
2227 | ||
2228 | //_____________________________________________________________________________ | |
2b1e4f0e | 2229 | void AliMUONClusterFinderAZ::AddRawCluster(Double_t x, Double_t y, Double_t qTot, Double_t fmin, Int_t nfit, Int_t *tracks, Double_t /*sigx*/, Double_t /*sigy*/, Double_t /*dist*/) |
0df3ca52 | 2230 | { |
2231 | // | |
2232 | // Add a raw cluster copy to the list | |
2233 | // | |
2b1e4f0e | 2234 | if (qTot <= 0.501) return; |
0df3ca52 | 2235 | AliMUONRawCluster cnew; |
2236 | AliMUON *pMUON=(AliMUON*)gAlice->GetModule("MUON"); | |
2b1e4f0e | 2237 | pMUON=0; //AZ |
0df3ca52 | 2238 | //pMUON->AddRawCluster(fInput->Chamber(),c); |
2239 | ||
2b1e4f0e | 2240 | Int_t cath, npads[2] = {0}, nover[2] = {0}; |
2241 | for (Int_t j=0; j<fnPads[0]+fnPads[1]; j++) { | |
2242 | cath = fPadIJ[0][j]; | |
2243 | // There was an overflow | |
2244 | if (fPadIJ[1][j] == -9) nover[cath]++; | |
2245 | if (fPadIJ[1][j] != 1 && fPadIJ[1][j] != -9) continue; | |
2246 | cnew.SetMultiplicity(cath,cnew.GetMultiplicity(cath)+1); | |
2247 | if (fXyq[2][j] > cnew.GetPeakSignal(cath)) cnew.SetPeakSignal(cath,TMath::Nint (fXyq[2][j])); | |
2248 | //cnew.SetCharge(cath,cnew.GetCharge(cath) + TMath::Nint (fXyq[2][j])); | |
2249 | cnew.SetContrib(npads[cath],cath,fXyq[2][j]); | |
5a051e34 | 2250 | cnew.SetIndex(npads[cath],cath,TMath::Nint (fXyq[5][j])); |
2251 | cnew.SetDetElemId(fInput->DetElemId()); | |
2b1e4f0e | 2252 | npads[cath]++; |
2253 | } | |
2254 | ||
2255 | cnew.SetClusterType(nover[0] + nover[1] * 100); | |
2256 | for (Int_t j=0; j<3; j++) cnew.SetTrack(j,tracks[j]); | |
2257 | ||
0df3ca52 | 2258 | for (cath=0; cath<2; cath++) { |
ba12c242 | 2259 | cnew.SetX(cath, x); |
2260 | cnew.SetY(cath, y); | |
2261 | cnew.SetZ(cath, fZpad); | |
2b1e4f0e | 2262 | cnew.SetCharge(cath, TMath::Nint(qTot)); |
2263 | //cnew.SetPeakSignal(cath,20); | |
2264 | //cnew.SetMultiplicity(cath, 5); | |
2265 | cnew.SetNcluster(cath, nfit); | |
2266 | cnew.SetChi2(cath, fmin); //0.;1 | |
0df3ca52 | 2267 | } |
2b1e4f0e | 2268 | // Evaluate measurement errors |
2269 | //AZ Errors(&cnew); | |
2270 | ||
2271 | cnew.SetGhost(nfit); //cnew.SetX(1,sigx); cnew.SetY(1,sigy); cnew.SetZ(1,dist); | |
0df3ca52 | 2272 | //cnew.fClusterType=cnew.PhysicsContribution(); |
2b1e4f0e | 2273 | //AZ pMUON->GetMUONData()->AddRawCluster(AliMUONClusterInput::Instance()->Chamber(),cnew); |
2274 | new((*fRawClusters)[fNRawClusters++]) AliMUONRawCluster(cnew); //AZ | |
2275 | if (fDebug) cout << fNRawClusters << " " << AliMUONClusterInput::Instance()->Chamber() << endl; | |
0df3ca52 | 2276 | //fNPeaks++; |
2277 | } | |
2278 | ||
2279 | //_____________________________________________________________________________ | |
2280 | Int_t AliMUONClusterFinderAZ::FindLocalMaxima(Int_t *localMax, Double_t *maxVal) | |
2281 | { | |
2282 | // Find local maxima in pixel space for large preclusters in order to | |
2283 | // try to split them into smaller pieces (to speed up the MLEM procedure) | |
2284 | ||
2285 | TH2D *hist = (TH2D*) gROOT->FindObject("anode"); | |
2286 | if (hist) hist->Delete(); | |
2287 | ||
cd747ddb | 2288 | Double_t xylim[4] = {999, 999, 999, 999}; |
0df3ca52 | 2289 | Int_t nPix = fPixArray->GetEntriesFast(); |
2290 | AliMUONPixel *pixPtr = 0; | |
2291 | for (Int_t ipix=0; ipix<nPix; ipix++) { | |
2292 | pixPtr = (AliMUONPixel*) fPixArray->UncheckedAt(ipix); | |
2293 | for (Int_t i=0; i<4; i++) | |
2294 | xylim[i] = TMath::Min (xylim[i], (i%2 ? -1 : 1)*pixPtr->Coord(i/2)); | |
2295 | } | |
2296 | for (Int_t i=0; i<4; i++) xylim[i] -= pixPtr->Size(i/2); | |
2297 | ||
2298 | Int_t nx = TMath::Nint ((-xylim[1]-xylim[0])/pixPtr->Size(0)/2); | |
2299 | Int_t ny = TMath::Nint ((-xylim[3]-xylim[2])/pixPtr->Size(1)/2); | |
2300 | hist = new TH2D("anode","anode",nx,xylim[0],-xylim[1],ny,xylim[2],-xylim[3]); | |
2301 | for (Int_t ipix=0; ipix<nPix; ipix++) { | |
2302 | pixPtr = (AliMUONPixel*) fPixArray->UncheckedAt(ipix); | |
2303 | hist->Fill(pixPtr->Coord(0), pixPtr->Coord(1), pixPtr->Charge()); | |
2304 | } | |
1af223d7 | 2305 | if (fDraw) fDraw->DrawHist("c2", hist); |
0df3ca52 | 2306 | |
2307 | Int_t nMax = 0, indx; | |
2308 | Int_t *isLocalMax = new Int_t[ny*nx]; | |
2309 | for (Int_t i=0; i<ny*nx; i++) isLocalMax[i] = 0; | |
2310 | ||
2311 | for (Int_t i=1; i<=ny; i++) { | |
2312 | indx = (i-1) * nx; | |
2313 | for (Int_t j=1; j<=nx; j++) { | |
2314 | if (hist->GetCellContent(j,i) < 0.5) continue; | |
2315 | //if (isLocalMax[indx+j-1] < 0) continue; | |
2316 | if (isLocalMax[indx+j-1] != 0) continue; | |
2317 | FlagLocalMax(hist, i, j, isLocalMax); | |
2318 | } | |
2319 | } | |
2320 | ||
2321 | for (Int_t i=1; i<=ny; i++) { | |
2322 | indx = (i-1) * nx; | |
2323 | for (Int_t j=1; j<=nx; j++) { | |
2324 | if (isLocalMax[indx+j-1] > 0) { | |
2325 | localMax[nMax] = indx + j - 1; | |
2326 | maxVal[nMax++] = hist->GetCellContent(j,i); | |
2b1e4f0e | 2327 | if (nMax > 99) AliFatal(" Too many local maxima !!!"); |
0df3ca52 | 2328 | } |
0df3ca52 | 2329 | } |
2330 | } | |
2b1e4f0e | 2331 | if (fDebug) cout << " Local max: " << nMax << endl; |
0df3ca52 | 2332 | delete [] isLocalMax; isLocalMax = 0; |
2333 | return nMax; | |
2334 | } | |
2335 | ||
2336 | //_____________________________________________________________________________ | |
2337 | void AliMUONClusterFinderAZ::FlagLocalMax(TH2D *hist, Int_t i, Int_t j, Int_t *isLocalMax) | |
2338 | { | |
2339 | // Flag pixels (whether or not local maxima) | |
2340 | ||
2341 | Int_t nx = hist->GetNbinsX(); | |
2342 | Int_t ny = hist->GetNbinsY(); | |
2343 | Int_t cont = TMath::Nint (hist->GetCellContent(j,i)); | |
2344 | Int_t cont1 = 0; | |
2345 | ||
2346 | for (Int_t i1=i-1; i1<i+2; i1++) { | |
2347 | if (i1 < 1 || i1 > ny) continue; | |
2348 | for (Int_t j1=j-1; j1<j+2; j1++) { | |
2349 | if (j1 < 1 || j1 > nx) continue; | |
2350 | if (i == i1 && j == j1) continue; | |
2351 | cont1 = TMath::Nint (hist->GetCellContent(j1,i1)); | |
2352 | if (cont < cont1) { isLocalMax[(i-1)*nx+j-1] = -1; return; } | |
2353 | else if (cont > cont1) isLocalMax[(i1-1)*nx+j1-1] = -1; | |
2354 | else { // the same charge | |
2355 | isLocalMax[(i-1)*nx+j-1] = 1; | |
2356 | if (isLocalMax[(i1-1)*nx+j1-1] == 0) { | |
2357 | FlagLocalMax(hist, i1, j1, isLocalMax); | |
2358 | if (isLocalMax[(i1-1)*nx+j1-1] < 0) { isLocalMax[(i-1)*nx+j-1] = -1; return; } | |
2359 | else isLocalMax[(i1-1)*nx+j1-1] = -1; | |
2360 | } | |
2361 | } | |
2362 | } | |
2363 | } | |
2364 | isLocalMax[(i-1)*nx+j-1] = 1; // local maximum | |
2365 | } | |
2366 | ||
2367 | //_____________________________________________________________________________ | |
2368 | void AliMUONClusterFinderAZ::FindCluster(Int_t *localMax, Int_t iMax) | |
2369 | { | |
2370 | // Find pixel cluster around local maximum #iMax and pick up pads | |
2371 | // overlapping with it | |
2372 | ||
2373 | TH2D *hist = (TH2D*) gROOT->FindObject("anode"); | |
2374 | Int_t nx = hist->GetNbinsX(); | |
2375 | Int_t ny = hist->GetNbinsY(); | |
2376 | Int_t ic = localMax[iMax] / nx + 1; | |
2377 | Int_t jc = localMax[iMax] % nx + 1; | |
2378 | Bool_t *used = new Bool_t[ny*nx]; | |
2379 | for (Int_t i=0; i<ny*nx; i++) used[i] = kFALSE; | |
2380 | ||
2381 | // Drop all pixels from the array - pick up only the ones from the cluster | |
2382 | fPixArray->Delete(); | |
2383 | ||
2384 | Double_t wx = hist->GetXaxis()->GetBinWidth(1)/2; | |
2385 | Double_t wy = hist->GetYaxis()->GetBinWidth(1)/2; | |
2386 | Double_t yc = hist->GetYaxis()->GetBinCenter(ic); | |
2387 | Double_t xc = hist->GetXaxis()->GetBinCenter(jc); | |
2388 | Double_t cont = hist->GetCellContent(jc,ic); | |
2389 | AliMUONPixel *pixPtr = new AliMUONPixel (xc, yc, wx, wy, cont); | |
2390 | fPixArray->Add((TObject*)pixPtr); | |
2391 | used[(ic-1)*nx+jc-1] = kTRUE; | |
2392 | AddBin(hist, ic, jc, 1, used, (TObjArray*)0); // recursive call | |
2393 | ||
2394 | Int_t nPix = fPixArray->GetEntriesFast(), npad = fnPads[0] + fnPads[1]; | |
2395 | for (Int_t i=0; i<nPix; i++) { | |
2396 | ((AliMUONPixel*)fPixArray->UncheckedAt(i))->SetSize(0,wx); | |
2397 | ((AliMUONPixel*)fPixArray->UncheckedAt(i))->SetSize(1,wy); | |
2398 | } | |
2b1e4f0e | 2399 | if (fDebug) cout << iMax << " " << nPix << endl; |
0df3ca52 | 2400 | |
2401 | Float_t xy[4], xy12[4]; | |
2402 | // Pick up pads which overlap with found pixels | |
2403 | for (Int_t i=0; i<npad; i++) fPadIJ[1][i] = -1; | |
2404 | for (Int_t i=0; i<nPix; i++) { | |
2405 | pixPtr = (AliMUONPixel*) fPixArray->UncheckedAt(i); | |
2406 | for (Int_t j=0; j<4; j++) | |
2407 | xy[j] = pixPtr->Coord(j/2) + (j%2 ? 1 : -1)*pixPtr->Size(j/2); | |
2408 | for (Int_t j=0; j<npad; j++) | |
2409 | if (Overlap(xy, j, xy12, 0)) fPadIJ[1][j] = 0; // flag for use | |
2410 | } | |
2411 | ||
2412 | delete [] used; used = 0; | |
2413 | } | |
30178c30 | 2414 | |
2415 | //_____________________________________________________________________________ | |
2416 | AliMUONClusterFinderAZ& | |
2417 | AliMUONClusterFinderAZ::operator=(const AliMUONClusterFinderAZ& rhs) | |
2418 | { | |
2419 | // Protected assignement operator | |
2420 | ||
2421 | if (this == &rhs) return *this; | |
2422 | ||
8c343c7c | 2423 | AliFatal("Not implemented."); |
30178c30 | 2424 | |
2425 | return *this; | |
2426 | } | |
2427 | ||
2b1e4f0e | 2428 | //_____________________________________________________________________________ |
2429 | void AliMUONClusterFinderAZ::AddVirtualPad() | |
2430 | { | |
2431 | // Add virtual pad (with small charge) to improve fit for some | |
2432 | // clusters (when pad with max charge is at the extreme of the cluster) | |
2433 | ||
2434 | // Get number of pads in X and Y-directions | |
2435 | Int_t nInX = -1, nInY; | |
2436 | PadsInXandY(nInX, nInY); | |
2437 | //return; | |
2438 | ||
2439 | //nInY = npady[0]; | |
2440 | //nInX = npadx[1] ? npadx[1] : npadx[0]; | |
2441 | // Add virtual pads only if number of pads per direction == 2 | |
2442 | //if (!npadx[1] && npady[0] != 2 && npadx[0] != 2) return 0; // one-sided | |
2443 | //if (npadx[1] && npady[0] != 2 && npadx[1] != 2) return 0; | |
2444 | if (nInX != 2 && nInY != 2) return; | |
2445 | ||
2446 | // Find pads with max charge | |
2447 | Int_t maxpad[2][2] = {{-1, -1}, {-1, -1}}, cath; | |
2448 | Double_t sigmax[2] = {0}, aamax[2] = {0}; | |
2449 | for (Int_t j=0; j<fnPads[0]+fnPads[1]; j++) { | |
2450 | if (fPadIJ[1][j] != 0) continue; | |
2451 | cath = fPadIJ[0][j]; | |
2452 | if (fXyq[2][j] > sigmax[cath]) { | |
2453 | maxpad[cath][1] = maxpad[cath][0]; | |
2454 | aamax[cath] = sigmax[cath]; | |
2455 | sigmax[cath] = fXyq[2][j]; | |
2456 | maxpad[cath][0] = j; | |
2457 | } | |
2458 | } | |
2459 | if (maxpad[0][0] >= 0 && maxpad[0][1] < 0 || maxpad[1][0] >= 0 && maxpad[1][1] < 0) { | |
2460 | for (Int_t j=0; j<fnPads[0]+fnPads[1]; j++) { | |
2461 | if (fPadIJ[1][j] != 0) continue; | |
2462 | cath = fPadIJ[0][j]; | |
2463 | if (j == maxpad[cath][0] || j == maxpad[cath][1]) continue; | |
2464 | if (fXyq[2][j] > aamax[cath]) { | |
2465 | aamax[cath] = fXyq[2][j]; | |
2466 | maxpad[cath][1] = j; | |
2467 | } | |
2468 | } | |
2469 | } | |
2470 | // Check for mirrors (side X on cathode 0) | |
2471 | Bool_t mirror = kFALSE; | |
2472 | if (maxpad[0][0] >= 0 && maxpad[1][0] >= 0) | |
2473 | mirror = fXyq[3][maxpad[0][0]] < fXyq[4][maxpad[0][0]]; | |
2474 | ||
2475 | // Find neughbours of pads with max charges | |
2476 | Int_t nn, xList[10], yList[10], ix0, iy0, ix, iy, neighb; | |
2477 | for (cath=0; cath<2; cath++) { | |
2478 | if (!cath && maxpad[0][0] < 0) continue; // one-sided cluster - cathode 1 | |
2479 | if (cath && maxpad[1][0] < 0) break; // one-sided cluster - cathode 0 | |
2480 | if (maxpad[1][0] >= 0) { | |
2481 | if (!mirror) { | |
2482 | if (!cath && nInY != 2) continue; | |
2483 | //AZ if (cath && nInX != 2) continue; | |
2484 | if (cath && nInX != 2 && (maxpad[0][0] >= 0 || nInY != 2)) continue; | |
2485 | } else { | |
2486 | if (!cath && nInX != 2) continue; | |
2487 | if (cath && nInY != 2 && (maxpad[0][0] >= 0 || nInX != 2)) continue; | |
2488 | } | |
2489 | } | |
2490 | ||
1af223d7 | 2491 | Int_t iAddX = 0, iAddY = 0, ix1 = 0, iy1 = 0, iPad = 0; |
2b1e4f0e | 2492 | if (maxpad[0][0] < 0) iPad = 1; |
2493 | ||
1af223d7 | 2494 | /* |
2b1e4f0e | 2495 | // This part of code to take care of edge effect (problems in MC) |
f29ba3e1 | 2496 | Float_t sprX = fResponse->SigmaIntegration()*fResponse->ChargeSpreadX(); |
2497 | Float_t sprY = fResponse->SigmaIntegration()*fResponse->ChargeSpreadY(); | |
2b1e4f0e | 2498 | Double_t rmin = 9999, rad2; |
1af223d7 | 2499 | Int_t border = 0, iYlow = 0, iMuon = 0; |
2b1e4f0e | 2500 | |
1af223d7 | 2501 | if (fDraw) { |
2b1e4f0e | 2502 | for (Int_t i=0; i<2; i++) { |
2503 | rad2 = (fXyq[0][maxpad[iPad][0]]-fxyMu[i][0]) * (fXyq[0][maxpad[iPad][0]]-fxyMu[i][0]); | |
2504 | rad2 += (fXyq[1][maxpad[iPad][0]]-fxyMu[i][1]) * (fXyq[1][maxpad[iPad][0]]-fxyMu[i][1]); | |
2505 | if (rad2 < rmin) { iMuon = i; rmin = rad2; } | |
2506 | } | |
f29ba3e1 | 2507 | fSegmentation[cath]->FirstPad(fInput->DetElemId(),(Float_t)fxyMu[iMuon][0], (Float_t)fxyMu[iMuon][1], fZpad, sprX, sprY); |
2b1e4f0e | 2508 | if (fSegmentation[cath]->Sector(fInput->DetElemId(),fSegmentation[cath]->Ix(),fSegmentation[cath]->Iy()) <= 0) { |
2509 | fSegmentation[cath]->NextPad(fInput->DetElemId()); | |
2510 | border = 1; | |
2511 | iYlow = fSegmentation[cath]->Iy(); | |
2512 | } | |
2513 | } | |
1af223d7 | 2514 | */ |
2b1e4f0e | 2515 | |
2516 | for (iPad=0; iPad<2; iPad++) { | |
2517 | if (iPad && !iAddX && !iAddY) break; | |
2518 | if (iPad && fXyq[2][maxpad[cath][1]] / sigmax[cath] < 0.5) break; | |
2519 | ||
2520 | Int_t neighbx = 0, neighby = 0; | |
2521 | fSegmentation[cath]->GetPadI(fInput->DetElemId(),fXyq[0][maxpad[cath][iPad]],fXyq[1][maxpad[cath][iPad]],fZpad,ix0,iy0); | |
2522 | fSegmentation[cath]->Neighbours(fInput->DetElemId(),ix0,iy0,&nn,xList,yList); | |
2523 | Float_t zpad; //, xpad, ypad; | |
2524 | for (Int_t j=0; j<nn; j++) { | |
2525 | /* | |
2526 | if (border && yList[j] < iYlow) { xList[j] = yList[j] = 0; continue; } | |
2527 | fSegmentation[cath]->GetPadC(fInput->DetElemId(),xList[j],yList[j],xpad,ypad,zpad); | |
2528 | if (TMath::Abs(xpad) < 1 && TMath::Abs(ypad) < 1) | |
2529 | { xList[j] = yList[j] = 0; continue; } // strange case (something with pad mapping) | |
2530 | */ | |
2531 | if (TMath::Abs(xList[j]-ix0) == 1 || TMath::Abs(xList[j]*ix0) == 1) neighbx++; | |
2532 | if (TMath::Abs(yList[j]-iy0) == 1 || TMath::Abs(yList[j]*iy0) == 1) neighby++; | |
2533 | } | |
2534 | if (!mirror) { | |
2535 | if (cath) neighb = neighbx; | |
2536 | else neighb = neighby; | |
2537 | if (maxpad[0][0] < 0) neighb += neighby; | |
2538 | else if (maxpad[1][0] < 0) neighb += neighbx; | |
2539 | } else { | |
2540 | if (!cath) neighb = neighbx; | |
2541 | else neighb = neighby; | |
2542 | if (maxpad[0][0] < 0) neighb += neighbx; | |
2543 | else if (maxpad[1][0] < 0) neighb += neighby; | |
2544 | } | |
2545 | ||
2546 | for (Int_t j=0; j<fnPads[0]+fnPads[1]; j++) { | |
2547 | if (fPadIJ[0][j] != cath) continue; | |
2548 | fSegmentation[cath]->GetPadI(fInput->DetElemId(),fXyq[0][j],fXyq[1][j],fZpad,ix,iy); | |
2549 | if (iy == iy0 && ix == ix0) continue; | |
2550 | for (Int_t k=0; k<nn; k++) { | |
2551 | if (xList[k] != ix || yList[k] != iy) continue; | |
2552 | if (!mirror) { | |
2553 | if ((!cath || maxpad[0][0] < 0) && | |
1af223d7 | 2554 | //(TMath::Abs(iy-iy0) == 1 || TMath::Abs(iy*iy0) == 1)) { |
2555 | (TMath::Abs(iy-iy0) == 1 || iy*iy0 == -1)) { | |
2b1e4f0e | 2556 | xList[k] = yList[k] = 0; |
2557 | neighb--; | |
2558 | break; | |
2559 | } | |
2560 | if ((cath || maxpad[1][0] < 0) && | |
1af223d7 | 2561 | //(TMath::Abs(ix-ix0) == 1 || TMath::Abs(ix*ix0) == 1)) { |
2562 | (TMath::Abs(ix-ix0) == 1 || ix*ix0 == -1)) { | |
2b1e4f0e | 2563 | xList[k] = yList[k] = 0; |
2564 | neighb--; | |
2565 | } | |
2566 | } else { | |
2567 | if ((!cath || maxpad[0][0] < 0) && | |
1af223d7 | 2568 | //(TMath::Abs(ix-ix0) == 1 || TMath::Abs(ix*ix0) == 1)) { |
2569 | (TMath::Abs(ix-ix0) == 1 || ix*ix0 == -1)) { | |
2b1e4f0e | 2570 | xList[k] = yList[k] = 0; |
2571 | neighb--; | |
2572 | break; | |
2573 | } | |
2574 | if ((cath || maxpad[1][0] < 0) && | |
1af223d7 | 2575 | //(TMath::Abs(iy-iy0) == 1 || TMath::Abs(iy*iy0) == 1)) { |
2576 | (TMath::Abs(iy-iy0) == 1 || iy*iy0 == -1)) { | |
2b1e4f0e | 2577 | xList[k] = yList[k] = 0; |
2578 | neighb--; | |
2579 | } | |
2580 | } | |
2581 | break; | |
2582 | } // for (Int_t k=0; k<nn; | |
2583 | if (!neighb) break; | |
2584 | } // for (Int_t j=0; j<fnPads[0]+fnPads[1]; | |
2585 | if (!neighb) continue; | |
2586 | ||
2587 | // Add virtual pad | |
2588 | Int_t npads, isec; | |
2589 | isec = 0; | |
2590 | for (Int_t j=0; j<nn; j++) { | |
2591 | if (xList[j] == 0 && yList[j] == 0) continue; | |
2592 | npads = fnPads[0] + fnPads[1]; | |
2593 | fPadIJ[0][npads] = cath; | |
2594 | fPadIJ[1][npads] = 0; | |
2595 | ix = xList[j]; | |
2596 | iy = yList[j]; | |
1af223d7 | 2597 | //if (TMath::Abs(ix-ix0) == 1 || TMath::Abs(ix*ix0) == 1) { |
2598 | if (TMath::Abs(ix-ix0) == 1 || ix*ix0 == -1) { | |
2b1e4f0e | 2599 | if (iy != iy0) continue; // new segmentation - check |
2600 | if (nInX != 2) continue; // new | |
2601 | if (!mirror) { | |
2602 | if (!cath && maxpad[1][0] >= 0) continue; | |
2603 | //if (maxpad[1][0] < 0 && nInX != 2) continue; | |
2604 | } else { | |
2605 | if (cath && maxpad[0][0] >= 0) continue; | |
2606 | //if (maxpad[0][0] < 0 && nInX != 2) continue; | |
2607 | } | |
2608 | if (iPad && !iAddX) continue; | |
2609 | fSegmentation[cath]->GetPadC(fInput->DetElemId(),ix,iy,fXyq[0][npads],fXyq[1][npads],zpad); | |
1af223d7 | 2610 | if (fXyq[0][npads] > 1.e+5) continue; // temporary fix |
2b1e4f0e | 2611 | if (ix1 == ix0) continue; |
2612 | //if (iPad && ix1 == ix0) continue; | |
2613 | //if (iPad && TMath::Abs(fXyq[0][npads]-fXyq[0][iAddX]) < fXyq[3][iAddX]) continue; | |
2614 | //if (TMath::Abs(fXyq[0][npads]) < 1 && TMath::Abs(fXyq[1][npads]) < 1) continue; // strange case (something with pad mapping) | |
2615 | if (maxpad[1][0] < 0 || mirror && maxpad[0][0] >= 0) { | |
2616 | if (!iPad) fXyq[2][npads] = TMath::Min (sigmax[0]/100, 5.); | |
2617 | else fXyq[2][npads] = TMath::Min (aamax[0]/100, 5.); | |
2618 | } | |
2619 | else { | |
2620 | if (!iPad) fXyq[2][npads] = TMath::Min (sigmax[1]/100, 5.); | |
2621 | else fXyq[2][npads] = TMath::Min (aamax[1]/100, 5.); | |
2622 | } | |
2623 | fXyq[2][npads] = TMath::Max (fXyq[2][npads], (float)1); | |
2624 | //fXyq[2][npads] = 1; | |
2625 | //isec = fSegmentation[cath]->Sector(fInput->DetElemId(),ix, iy); | |
2626 | //fXyq[3][npads] = fSegmentation[cath]->Dpx(fInput->DetElemId(),isec)/2; | |
2627 | fXyq[3][npads] = -2; // flag | |
2628 | fnPads[1]++; | |
2629 | iAddX = npads; | |
e8fb921b | 2630 | if (fDebug) printf(" ***** Add virtual pad in X ***** %f %f %f %3d %3d \n", fXyq[2][npads], |
2631 | fXyq[0][npads], fXyq[1][npads], ix, iy); | |
2b1e4f0e | 2632 | ix1 = ix0; |
2633 | continue; | |
2634 | } | |
2635 | if (nInY != 2) continue; | |
2636 | if (!mirror && cath && maxpad[0][0] >= 0) continue; | |
2637 | if (mirror && !cath && maxpad[1][0] >= 0) continue; | |
2638 | if (TMath::Abs(iy-iy0) == 1 || TMath::Abs(iy*iy0) == 1) { | |
2639 | if (ix != ix0) continue; // new segmentation - check | |
2640 | if (iPad && !iAddY) continue; | |
2641 | fSegmentation[cath]->GetPadC(fInput->DetElemId(),ix,iy,fXyq[0][npads],fXyq[1][npads],zpad); | |
2642 | if (iy1 == iy0) continue; | |
2643 | //if (iPad && iy1 == iy0) continue; | |
2644 | //if (iPad && TMath::Abs(fXyq[1][npads]-fXyq[1][iAddY]) < fXyq[4][iAddY]) continue; | |
2645 | //if (TMath::Abs(fXyq[0][npads]) < 1 && TMath::Abs(fXyq[1][npads]) < 1) continue; // strange case (something with pad mapping) | |
2646 | if (maxpad[0][0] < 0 || mirror && maxpad[1][0] >= 0) { | |
cc87ebcd | 2647 | //if (!iPad) fXyq[2][npads] = TMath::Min (sigmax[1]/20, 5.); |
2648 | //else fXyq[2][npads] = TMath::Min (aamax[1]/20, 5.); | |
e8fb921b | 2649 | if (!iPad) fXyq[2][npads] = TMath::Min (sigmax[1]/15, (double)fResponse->ZeroSuppression()); |
2650 | else fXyq[2][npads] = TMath::Min (aamax[1]/15, (double)fResponse->ZeroSuppression()); | |
2b1e4f0e | 2651 | } |
2652 | else { | |
cc87ebcd | 2653 | //if (!iPad) fXyq[2][npads] = TMath::Min (sigmax[0]/20, 5.); |
2654 | //else fXyq[2][npads] = TMath::Min (aamax[0]/20, 5.); | |
e8fb921b | 2655 | if (!iPad) fXyq[2][npads] = TMath::Min (sigmax[0]/15, (double)fResponse->ZeroSuppression()); |
2656 | else fXyq[2][npads] = TMath::Min (aamax[0]/15, (double)fResponse->ZeroSuppression()); | |
2b1e4f0e | 2657 | } |
2658 | fXyq[2][npads] = TMath::Max (fXyq[2][npads], (float)1); | |
2659 | //isec = fSegmentation[cath]->Sector(fInput->DetElemId(),ix, iy); | |
2660 | //fXyq[4][npads] = fSegmentation[cath]->Dpy(isec)/2; | |
2661 | fXyq[3][npads] = -2; // flag | |
2662 | fnPads[1]++; | |
2663 | iAddY = npads; | |
e8fb921b | 2664 | if (fDebug) printf(" ***** Add virtual pad in Y ***** %f %f %f %3d %3d \n", fXyq[2][npads], |
2665 | fXyq[0][npads], fXyq[1][npads], ix, iy); | |
2b1e4f0e | 2666 | iy1 = iy0; |
2667 | } | |
2668 | } // for (Int_t j=0; j<nn; | |
2669 | } // for (Int_t iPad=0; | |
2670 | } // for (cath=0; cath<2; | |
2671 | return; | |
2672 | } | |
2673 | ||
2674 | //_____________________________________________________________________________ | |
2675 | void AliMUONClusterFinderAZ::PadsInXandY(Int_t &nInX, Int_t &nInY) | |
2676 | { | |
2677 | // Find number of pads in X and Y-directions (excluding virtual ones and | |
2678 | // overflows) | |
2679 | ||
2680 | static Int_t nXsaved = 0, nYsaved = 0; | |
2681 | nXsaved = nYsaved = 0; | |
2682 | //if (nInX >= 0) {nInX = nXsaved; nInY = nYsaved; return; } | |
5a051e34 | 2683 | Float_t *xPad0 = NULL, *yPad0 = NULL, *xPad1 = NULL, *yPad1 = NULL; |
1af223d7 | 2684 | Float_t wMinX[2] = {99, 99}, wMinY[2] = {99, 99}; |
5a051e34 | 2685 | Int_t *nPad0 = NULL, *nPad1 = NULL; |
2686 | Int_t nPads = fnPads[0] + fnPads[1]; | |
2687 | if (fnPads[0]) { | |
2688 | xPad0 = new Float_t[nPads]; | |
2689 | yPad0 = new Float_t[nPads]; | |
2690 | nPad0 = new Int_t[nPads]; | |
2691 | } | |
2692 | if (fnPads[1]) { | |
2693 | xPad1 = new Float_t[nPads]; | |
2694 | yPad1 = new Float_t[nPads]; | |
2695 | nPad1 = new Int_t[nPads]; | |
2696 | } | |
2697 | Int_t n0 = 0, n1 = 0, cath, npadx[2] = {1, 1}, npady[2] = {1, 1}; | |
2698 | for (Int_t j = 0; j < nPads; j++) { | |
2b1e4f0e | 2699 | //if (fPadIJ[1][j] != 0) continue; |
2700 | //if (fXyq[3][j] < 0) continue; // virtual pad | |
2701 | if (nInX < 0 && fPadIJ[1][j] != 0) continue; // before fit | |
2702 | else if (nInX == 0 && fPadIJ[1][j] != 1) continue; // fit - exclude overflows | |
2703 | else if (nInX > 0 && fPadIJ[1][j] != 1 && fPadIJ[1][j] != -9) continue; // exclude non-marked | |
2b1e4f0e | 2704 | if (nInX <= 0 && fXyq[2][j] > fResponse->Saturation()-1) continue; // skip overflows |
2705 | cath = fPadIJ[0][j]; | |
1af223d7 | 2706 | if (fXyq[3][j] > 0) { // exclude virtual pads |
2707 | wMinX[cath] = TMath::Min (wMinX[cath], fXyq[3][j]); | |
2708 | wMinY[cath] = TMath::Min (wMinY[cath], fXyq[4][j]); | |
2709 | } | |
5a051e34 | 2710 | if (cath) { xPad1[n1] = fXyq[0][j]; yPad1[n1++] = fXyq[1][j]; } |
2711 | else { xPad0[n0] = fXyq[0][j]; yPad0[n0++] = fXyq[1][j]; } | |
2b1e4f0e | 2712 | } |
5a051e34 | 2713 | |
2714 | // Sort | |
2715 | if (n0) { | |
2716 | TMath::Sort (n0, xPad0, nPad0); // in X | |
2717 | for (Int_t i = 1; i < n0; i++) | |
2718 | if (xPad0[nPad0[i]] - xPad0[nPad0[i-1]] < -0.01) npadx[0]++; | |
2719 | TMath::Sort (n0, yPad0, nPad0); // in Y | |
2720 | for (Int_t i = 1; i < n0; i++) | |
2721 | if (yPad0[nPad0[i]] - yPad0[nPad0[i-1]] < -0.01) npady[0]++; | |
2722 | } | |
2723 | ||
2724 | if (n1) { | |
2725 | TMath::Sort (n1, xPad1, nPad1); // in X | |
2726 | for (Int_t i = 1; i < n1; i++) | |
2727 | if (xPad1[nPad1[i]] - xPad1[nPad1[i-1]] < -0.01) npadx[1]++; | |
2728 | TMath::Sort (n1, yPad1, nPad1); // in Y | |
2729 | for (Int_t i = 1; i < n1; i++) | |
2730 | if (yPad1[nPad1[i]] - yPad1[nPad1[i-1]] < -0.01) npady[1]++; | |
2731 | } | |
2732 | if (fnPads[0]) { delete [] xPad0; delete [] yPad0; delete [] nPad0; } | |
2733 | if (fnPads[1]) { delete [] xPad1; delete [] yPad1; delete [] nPad1; } | |
1af223d7 | 2734 | //nInY = TMath::Max (npady[0], npady[1]); |
2735 | //nInX = TMath::Max (npadx[0], npadx[1]); | |
cc87ebcd | 2736 | if (TMath::Abs (wMinY[0] - wMinY[1]) < 1.e-3) nInY = TMath::Max (npady[0], npady[1]); |
2737 | else nInY = wMinY[0] < wMinY[1] ? npady[0] : npady[1]; | |
2738 | if (TMath::Abs (wMinX[0] - wMinX[1]) < 1.e-3) nInX = TMath::Max (npadx[0], npadx[1]); | |
2739 | else nInX = wMinX[0] < wMinX[1] ? npadx[0] : npadx[1]; | |
2b1e4f0e | 2740 | } |
2741 | ||
2742 | //_____________________________________________________________________________ | |
2743 | void AliMUONClusterFinderAZ::Simple() | |
2744 | { | |
2745 | // Process simple cluster (small number of pads) without EM-procedure | |
2746 | ||
2747 | Int_t nForFit = 1, clustFit[1] = {1}, nfit; | |
2748 | Double_t parOk[3] = {0.}; | |
2749 | TObjArray *clusters[1]; | |
2750 | clusters[1] = fPixArray; | |
5a051e34 | 2751 | for (Int_t i = 0; i < fnPads[0]+fnPads[1]; i++) { |
2752 | if (fXyq[2][i] > fResponse->Saturation()-1) fPadIJ[1][i] = -9; | |
2753 | else fPadIJ[1][i] = 1; | |
2754 | } | |
2b1e4f0e | 2755 | nfit = Fit(nForFit, clustFit, clusters, parOk); |
2756 | } | |
2757 | ||
2758 | //_____________________________________________________________________________ | |
2759 | void AliMUONClusterFinderAZ::Errors(AliMUONRawCluster *clus) | |
2760 | { | |
2761 | // Correct reconstructed coordinates for some clusters and evaluate errors | |
2762 | ||
2763 | Double_t qTot = clus->GetCharge(0), fmin = clus->GetChi2(0); | |
2764 | Double_t xreco = clus->GetX(0), yreco = clus->GetY(0), zreco = clus->GetZ(0); | |
2765 | Double_t sigmax[2] = {0}; | |
2766 | ||
2767 | Int_t nInX = 1, nInY, maxdig[2] ={-1, -1}, digit, cath1, isec; | |
2768 | PadsInXandY(nInX, nInY); | |
2769 | ||
2770 | // Find pad with maximum signal | |
2771 | for (Int_t cath = 0; cath < 2; cath++) { | |
2772 | for (Int_t j = 0; j < clus->GetMultiplicity(cath); j++) { | |
2773 | cath1 = cath; | |
2774 | digit = clus->GetIndex(j, cath); | |
2775 | if (digit < 0) { cath1 = TMath::Even(cath); digit = -digit - 1; } // from the other cathode | |
2776 | ||
2777 | if (clus->GetContrib(j,cath) > sigmax[cath1]) { | |
2778 | sigmax[cath1] = clus->GetContrib(j,cath); | |
2779 | maxdig[cath1] = digit; | |
2780 | } | |
2781 | } | |
2782 | } | |
2783 | ||
2784 | // Size of pad with maximum signal and reco coordinate distance from the pad center | |
2785 | AliMUONDigit *mdig = 0; | |
2786 | Double_t wx[2], wy[2], dxc[2], dyc[2]; | |
2787 | Float_t xpad, ypad, zpad; | |
2788 | Int_t ix, iy; | |
2789 | for (Int_t cath = 0; cath < 2; cath++) { | |
2790 | if (maxdig[cath] < 0) continue; | |
2791 | mdig = fInput->Digit(cath,maxdig[cath]); | |
2792 | isec = fSegmentation[cath]->Sector(fInput->DetElemId(),mdig->PadX(), mdig->PadY()); | |
2793 | wx[cath] = fSegmentation[cath]->Dpx(fInput->DetElemId(),isec); | |
2794 | wy[cath] = fSegmentation[cath]->Dpy(fInput->DetElemId(),isec); | |
2795 | fSegmentation[cath]->GetPadI(fInput->DetElemId(),xreco, yreco, zreco, ix, iy); | |
2796 | isec = fSegmentation[cath]->Sector(fInput->DetElemId(),ix,iy); | |
2797 | if (isec > 0) { | |
2798 | fSegmentation[cath]->GetPadC(fInput->DetElemId(), ix, iy, xpad, ypad, zpad); | |
2799 | dxc[cath] = xreco - xpad; | |
2800 | dyc[cath] = yreco - ypad; | |
2801 | } | |
2802 | } | |
2803 | ||
2804 | // Check if pad with max charge at the edge (number of neughbours) | |
2805 | Int_t nn, xList[10], yList[10], neighbx[2][2] = {{0,0}, {0,0}}, neighby[2][2]= {{0,0}, {0,0}}; | |
2806 | for (Int_t cath = 0; cath < 2; cath++) { | |
2807 | if (maxdig[cath] < 0) continue; | |
2808 | mdig = fInput->Digit(cath,maxdig[cath]); | |
2809 | fSegmentation[cath]->Neighbours(fInput->DetElemId(),mdig->PadX(),mdig->PadY(),&nn,xList,yList); | |
2810 | isec = fSegmentation[cath]->Sector(fInput->DetElemId(),mdig->PadX(), mdig->PadY()); | |
2811 | //*?? | |
f29ba3e1 | 2812 | Float_t sprX = fResponse->SigmaIntegration() * fResponse->ChargeSpreadX(); |
2813 | Float_t sprY = fResponse->SigmaIntegration() * fResponse->ChargeSpreadY(); | |
2814 | //fSegmentation[cath]->FirstPad(fInput->DetElemId(),muons[ihit][1], muons[ihit][2], muons[ihit][3], sprX, sprY); | |
2815 | fSegmentation[cath]->FirstPad(fInput->DetElemId(),xreco, yreco, zreco, sprX, sprY); | |
2b1e4f0e | 2816 | Int_t border = 0; |
2817 | if (fSegmentation[cath]->Sector(fInput->DetElemId(),fSegmentation[cath]->Ix(),fSegmentation[cath]->Iy()) <= 0) { | |
2818 | fSegmentation[cath]->NextPad(fInput->DetElemId()); | |
2819 | border = 1; | |
2820 | } | |
2821 | //*/ | |
2822 | for (Int_t j=0; j<nn; j++) { | |
2823 | if (border && yList[j] < fSegmentation[cath]->Iy()) continue; | |
2824 | fSegmentation[cath]->GetPadC (fInput->DetElemId(), xList[j], yList[j], xpad, ypad, zpad); | |
2825 | //cout << ch << " " << xList[j] << " " << yList[j] << " " << border << " " << x << " " << y << " " << xpad << " " << ypad << endl; | |
2826 | if (TMath::Abs(xpad) < 1 && TMath::Abs(ypad) < 1) continue; | |
2827 | if (xList[j] == mdig->PadX()-1 || mdig->PadX() == 1 && | |
2828 | xList[j] == -1) neighbx[cath][0] = 1; | |
2829 | else if (xList[j] == mdig->PadX()+1 || mdig->PadX() == -1 && | |
2830 | xList[j] == 1) neighbx[cath][1] = 1; | |
2831 | if (yList[j] == mdig->PadY()-1 || mdig->PadY() == 1 && | |
2832 | yList[j] == -1) neighby[cath][0] = 1; | |
2833 | else if (yList[j] == mdig->PadY()+1 || mdig->PadY() == -1 && | |
2834 | yList[j] == 1) neighby[cath][1] = 1; | |
2835 | } // for (Int_t j=0; j<nn; | |
2836 | if (neighbx[cath][0] && neighbx[cath][1]) neighbx[cath][0] = 0; | |
2837 | else if (neighbx[cath][1]) neighbx[cath][0] = -1; | |
2838 | else neighbx[cath][0] = 1; | |
2839 | if (neighby[cath][0] && neighby[cath][1]) neighby[cath][0] = 0; | |
2840 | else if (neighby[cath][1]) neighby[cath][0] = -1; | |
2841 | else neighby[cath][0] = 1; | |
2842 | } | |
2843 | ||
2844 | Int_t iOver = clus->GetClusterType(); | |
2845 | // One-sided cluster | |
2846 | if (!clus->GetMultiplicity(0)) { | |
2847 | neighby[0][0] = neighby[1][0]; | |
2848 | wy[0] = wy[1]; | |
2849 | if (iOver < 99) iOver += 100 * iOver; | |
2850 | dyc[0] = dyc[1]; | |
2851 | } else if (!clus->GetMultiplicity(1)) { | |
2852 | neighbx[1][0] = neighbx[0][0]; | |
2853 | wx[1] = wx[0]; | |
2854 | if (iOver < 99) iOver += 100 * iOver; | |
2855 | dxc[1] = dxc[0]; | |
2856 | } | |
2857 | ||
2858 | // Apply corrections and evaluate errors | |
2859 | Double_t errY, errX; | |
2860 | Errors(nInY, nInX, neighby[0][0],neighbx[1][0], fmin, wy[0]*10, wx[1]*10, iOver, | |
2861 | dyc[0], dxc[1], qTot, yreco, xreco, errY, errX); | |
2862 | errY = TMath::Max (errY, 0.01); | |
2863 | //errY = 0.01; | |
2864 | //errX = TMath::Max (errX, 0.144); | |
2865 | clus->SetX(0, xreco); clus->SetY(0, yreco); | |
1af223d7 | 2866 | clus->SetErrX(errX); clus->SetErrY(errY); |
2b1e4f0e | 2867 | } |
2868 | ||
2869 | //_____________________________________________________________________________ | |
2870 | void AliMUONClusterFinderAZ::Errors(Int_t ny, Int_t nx, Int_t iby, Int_t ibx, Double_t fmin, | |
2871 | Double_t wy, Double_t wx, Int_t iover, | |
2872 | Double_t dyc, Double_t /*dxc*/, Double_t qtot, | |
2873 | Double_t &yrec, Double_t &xrec, Double_t &erry, Double_t &errx) | |
2874 | { | |
2875 | // Correct reconstructed coordinates for some clusters and evaluate errors | |
2876 | ||
2877 | erry = 0.01; | |
2878 | errx = 0.144; | |
2879 | Int_t iovery = iover % 100; | |
2880 | Double_t corr = 0; | |
2881 | ||
2882 | /* ---> Ny = 1 */ | |
2883 | if (ny == 1) { | |
2884 | if (iby != 0) { | |
2885 | // edge effect | |
2886 | yrec += iby * (0.1823+0.2008)/2; | |
2887 | erry = 0.04587; | |
2888 | } else { | |
2889 | // Find "effective pad width" | |
2890 | Double_t width = 0.218 / (1.31e-4 * TMath::Exp (2.688 * TMath::Log(qtot)) + 1) * 2; | |
2891 | width = TMath::Min (width, 0.4); | |
2892 | erry = width / TMath::Sqrt(12.); | |
2893 | erry = TMath::Max (erry, 0.01293); | |
2894 | } | |
2895 | goto x; //return; | |
2896 | } | |
2897 | ||
2898 | /* ---> "Bad" fit */ | |
2899 | if (fmin > 0.4) { | |
2900 | erry = 0.1556; | |
2901 | if (ny == 5) erry = 0.06481; | |
2902 | goto x; //return; | |
2903 | } | |
2904 | ||
2905 | /* ---> By != 0 */ | |
2906 | if (iby != 0) { | |
2907 | if (ny > 2) { | |
2908 | erry = 0.00417; //0.01010 | |
2909 | } else { | |
2910 | // ny = 2 | |
2911 | if (dyc * iby > -0.05) { | |
2912 | Double_t dyc2 = dyc * dyc; | |
2913 | if (iby < 0) { | |
2914 | corr = 0.019 - 0.602 * dyc + 8.739 * dyc2 - 44.209 * dyc2 * dyc; | |
2915 | corr = TMath::Min (corr, TMath::Abs(-0.25-dyc)); | |
2916 | yrec -= corr; | |
2917 | //dyc -= corr; | |
2918 | erry = 0.00814; | |
2919 | } else { | |
2920 | corr = 0.006 + 0.300 * dyc + 6.147 * dyc2 + 42.039 * dyc2 * dyc; | |
2921 | corr = TMath::Min (corr, 0.25-dyc); | |
2922 | yrec += corr; | |
2923 | //dyc += corr; | |
2924 | erry = 0.01582; | |
2925 | } | |
2926 | } else { | |
2927 | erry = (0.00303 + 0.00296) / 2; | |
2928 | } | |
2929 | } | |
2930 | goto x; //return; | |
2931 | } | |
2932 | ||
2933 | /* ---> Overflows */ | |
2934 | if (iovery != 0) { | |
2935 | if (qtot < 3000) { | |
2936 | erry = 0.0671; | |
2937 | } else { | |
2938 | if (iovery > 1) { | |
2939 | erry = 0.09214; | |
2940 | } else if (TMath::Abs(wy - 5) < 0.1) { | |
2941 | erry = 0.061; //0.06622 | |
2942 | } else { | |
2943 | erry = 0.00812; // 0.01073 | |
2944 | } | |
2945 | } | |
2946 | goto x; //return; | |
2947 | } | |
2948 | ||
2949 | /* ---> "Good" but very high signal */ | |
2950 | if (qtot > 4000) { | |
2951 | if (TMath::Abs(wy - 4) < 0.1) { | |
2952 | erry = 0.00117; | |
2953 | } else if (fmin < 0.03 && qtot < 6000) { | |
2954 | erry = 0.01003; | |
2955 | } else { | |
2956 | erry = 0.1931; | |
2957 | } | |
2958 | goto x; //return; | |
2959 | } | |
2960 | ||
2961 | /* ---> "Good" clusters */ | |
2962 | if (ny > 3) { | |
2963 | if (TMath::Abs(wy - 5) < 0.1) { | |
2964 | erry = 0.0011; //0.00304 | |
2965 | } else if (qtot < 400.) { | |
2966 | erry = 0.0165; | |
2967 | } else { | |
2968 | erry = 0.00135; // 0.00358 | |
2969 | } | |
2970 | } else if (ny == 3) { | |
2971 | if (TMath::Abs(wy - 4) < 0.1) { | |
2972 | erry = 35.407 / (1 + TMath::Exp(5.511*TMath::Log(qtot/265.51))) + 11.564; | |
2973 | //erry = 83.512 / (1 + TMath::Exp(3.344*TMath::Log(qtot/211.58))) + 12.260; | |
2974 | } else { | |
2975 | erry = 147.03 / (1 + TMath::Exp(1.713*TMath::Log(qtot/73.151))) + 9.575; | |
2976 | //erry = 91.743 / (1 + TMath::Exp(2.332*TMath::Log(qtot/151.67))) + 11.453; | |
2977 | } | |
2978 | erry *= 1.e-4; | |
2979 | } else { | |
2980 | // ny = 2 | |
2981 | if (TMath::Abs(wy - 4) < 0.1) { | |
2982 | erry = 60.800 / (1 + TMath::Exp(3.305*TMath::Log(qtot/104.53))) + 11.702; | |
2983 | //erry = 73.128 / (1 + TMath::Exp(5.676*TMath::Log(qtot/120.93))) + 17.839; | |
2984 | } else { | |
2985 | erry = 117.98 / (1 + TMath::Exp(2.005*TMath::Log(qtot/37.649))) + 21.431; | |
2986 | //erry = 99.066 / (1 + TMath::Exp(4.900*TMath::Log(qtot/107.57))) + 25.315; | |
2987 | } | |
2988 | erry *= 1.e-4; | |
2989 | } | |
2990 | //return; | |
2991 | ||
2992 | x: | |
2993 | /* ---> X-coordinate */ | |
2994 | /* ---> Y-side */ | |
2995 | if (wx > 11) { | |
2996 | errx = 0.0036; | |
2997 | xrec -= 0.1385; | |
2998 | return; | |
2999 | } | |
3000 | /* ---> Nx = 1 */ | |
3001 | if (nx == 1) { | |
3002 | if (TMath::Abs(wx - 6) < 0.1) { | |
3003 | if (qtot < 40) errx = 0.1693; | |
3004 | else errx = 0.06241; | |
3005 | } else if (TMath::Abs(wx - 7.5) < 0.1) { | |
3006 | if (qtot < 40) errx = 0.2173; | |
3007 | else errx = 0.07703; | |
3008 | } else if (TMath::Abs(wx - 10) < 0.1) { | |
3009 | if (ibx == 0) { | |
3010 | if (qtot < 40) errx = 0.2316; | |
3011 | else errx = 0.1426; | |
3012 | } else { | |
3013 | xrec += (0.2115 + 0.1942) / 2 * ibx; | |
3014 | errx = 0.1921; | |
3015 | } | |
3016 | } | |
3017 | return; | |
3018 | } | |
3019 | /* ---> "Bad" fit */ | |
3020 | if (fmin > 0.5) { | |
3021 | errx = 0.1591; | |
3022 | return; | |
3023 | } | |
3024 | /* ---> Bx != 0 */ | |
3025 | if (ibx != 0) { | |
3026 | if (ibx > 0) { errx = 0.06761; xrec -= 0.03832; } | |
3027 | else { errx = 0.06653; xrec += 0.02581; } | |
3028 | return; | |
3029 | } | |
3030 | /* ---> Overflows */ | |
3031 | if (iover != 0) { | |
3032 | if (TMath::Abs(wx - 6) < 0.1) errx = 0.06979; | |
3033 | else if (TMath::Abs(wx - 7.5) < 0.1) errx = 0.1089; | |
3034 | else if (TMath::Abs(wx - 10) < 0.1) errx = 0.09847; | |
3035 | return; | |
3036 | } | |
3037 | /* ---> Good */ | |
3038 | if (TMath::Abs(wx - 6) < 0.1) errx = 0.06022; | |
3039 | else if (TMath::Abs(wx - 7.5) < 0.1) errx = 0.07247; | |
3040 | else if (TMath::Abs(wx - 10) < 0.1) errx = 0.07359; | |
3041 | } | |
3042 |