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6255180c | 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 | ||
d53fc881 | 16 | /* |
17 | $Log$ | |
9a226b7e | 18 | Revision 1.9 2004/02/03 16:45:20 morsch |
19 | Unique name for functions (TF1). | |
20 | ||
c6ba3ff4 | 21 | Revision 1.8 2004/01/27 18:02:38 hristov |
22 | Removing some warning (Sun) | |
23 | ||
15a060e4 | 24 | Revision 1.7 2003/11/13 14:21:57 morsch |
25 | Coding Rule violation corrections. | |
26 | ||
041f7f97 | 27 | Revision 1.6 2003/08/12 15:16:25 morsch |
28 | Saver initialisation of fFitp array. (Lenaic COUEDEL) | |
29 | ||
1e68a0c5 | 30 | Revision 1.5 2003/08/05 16:14:20 morsch |
31 | Some problems with too big fluctuations corrected. (A. de Falco) | |
32 | ||
d53fc881 | 33 | Revision 1.2 2003/01/08 10:29:33 morsch |
34 | Path to data file changed. | |
35 | ||
36 | Revision 1.1 2003/01/06 10:13:33 morsch | |
37 | First commit. | |
38 | ||
39 | */ | |
6255180c | 40 | |
041f7f97 | 41 | //------------------------------------------------------------------------- |
42 | // Class AliMUONFastTracking | |
43 | // | |
44 | // Manager for the fast simulation of tracking in the muon spectrometer | |
45 | // This class reads the lookup tables containing the parameterization | |
46 | // of the deltap, deltatheta, deltaphi for different background levels | |
47 | // and provides the related smeared parameters. | |
48 | // Used by AliFastMuonTrackingEff, AliFastMuonTrackingAcc, | |
49 | // AliFastMuonTrackingRes. | |
50 | //------------------------------------------------------------------------- | |
51 | ||
6255180c | 52 | #include "AliMUONFastTracking.h" |
53 | #include "AliMUONFastTrackingEntry.h" | |
6255180c | 54 | #include <TSpline.h> |
55 | #include <TFile.h> | |
6255180c | 56 | #include <TH3.h> |
57 | #include <TF1.h> | |
58 | #include <TRandom.h> | |
59 | #include <stdlib.h> | |
60 | #include <stdio.h> | |
61 | #include <string.h> | |
62 | #include <Riostream.h> | |
63 | ||
64 | ClassImp(AliMUONFastTracking) | |
65 | ||
041f7f97 | 66 | |
6255180c | 67 | AliMUONFastTracking* AliMUONFastTracking::fgMUONFastTracking=NULL; |
68 | ||
69 | static Double_t FitP(Double_t *x, Double_t *par){ | |
70 | Double_t dx = x[0] - par[0]; | |
71 | Double_t dx2 = x[0] - par[4]; | |
72 | Double_t sigma = par[1] * ( 1 + par[2] * dx); | |
73 | if (sigma == 0) { | |
74 | ||
75 | return 0.; | |
76 | } | |
77 | Double_t fasymm = TMath::Exp(-0.5 * dx * dx / (sigma * sigma)); | |
78 | Double_t sigma2 = par[1] * par[5]; | |
79 | Double_t fgauss = TMath::Exp(-0.5 * dx2 * dx2 / (sigma2 * sigma2)); | |
d53fc881 | 80 | Double_t value = fasymm + par[3] * fgauss; |
9a226b7e | 81 | return TMath::Abs(value); |
6255180c | 82 | } |
83 | ||
041f7f97 | 84 | AliMUONFastTracking::AliMUONFastTracking(const AliMUONFastTracking & ft):TObject() |
85 | { | |
86 | // Copy constructor | |
87 | ft.Copy(*this); | |
88 | } | |
89 | ||
90 | ||
6255180c | 91 | AliMUONFastTracking* AliMUONFastTracking::Instance() |
92 | { | |
93 | // Set random number generator | |
94 | if (fgMUONFastTracking) { | |
95 | return fgMUONFastTracking; | |
96 | } else { | |
97 | fgMUONFastTracking = new AliMUONFastTracking(); | |
98 | return fgMUONFastTracking; | |
99 | } | |
100 | } | |
101 | ||
102 | AliMUONFastTracking::AliMUONFastTracking() | |
103 | { | |
041f7f97 | 104 | // |
105 | // constructor | |
106 | // | |
1e68a0c5 | 107 | for (Int_t i = 0; i<20;i++) { |
108 | for (Int_t j = 0; j<20; j++) { | |
109 | for (Int_t k = 0; k<20; k++) { | |
110 | fFitp[i][j][k] = 0x0; | |
111 | } | |
112 | } | |
113 | } | |
114 | ||
d53fc881 | 115 | fClusterFinder = kOld; |
6255180c | 116 | fPrintLevel = 1; |
117 | // read binning; temporarily put by hand | |
118 | Float_t pmin = 0, pmax = 200; | |
119 | Int_t nbinp = 10; | |
120 | Float_t thetamin = 2, thetamax = 9; | |
121 | Int_t nbintheta=10; | |
122 | Float_t phimin = -180, phimax =180; | |
123 | Int_t nbinphi=10; | |
124 | //-------------------------------------- | |
125 | ||
126 | fNbinp = nbinp; | |
127 | fPmin = pmin; | |
128 | fPmax = pmax; | |
129 | ||
130 | fNbintheta = nbintheta; | |
131 | fThetamin = thetamin; | |
132 | fThetamax = thetamax; | |
133 | ||
134 | fNbinphi = nbinphi; | |
135 | fPhimin = phimin; | |
136 | fPhimax = phimax; | |
137 | ||
138 | fDeltaP = (fPmax-fPmin)/fNbinp; | |
139 | fDeltaTheta = (fThetamax-fThetamin)/fNbintheta; | |
140 | fDeltaPhi = (fPhimax-fPhimin)/fNbinphi; | |
141 | } | |
142 | ||
143 | void AliMUONFastTracking::Init(Float_t bkg) | |
144 | { | |
145 | // | |
146 | // Initialization | |
147 | // | |
148 | for (Int_t ip=0; ip< fNbinp; ip++){ | |
149 | for (Int_t itheta=0; itheta< fNbintheta; itheta++){ | |
150 | for (Int_t iphi=0; iphi< fNbinphi; iphi++){ | |
151 | fCurrentEntry[ip][itheta][iphi] = new AliMUONFastTrackingEntry; | |
152 | for (Int_t ibkg=0; ibkg<4; ibkg++){ | |
153 | fEntry[ip][itheta][iphi][ibkg] = new AliMUONFastTrackingEntry; | |
154 | } | |
155 | } | |
156 | } | |
157 | } | |
158 | ||
159 | char filename [100]; | |
d53fc881 | 160 | if (fClusterFinder==kOld) sprintf (filename,"$(ALICE_ROOT)/FASTSIM/data/MUONtrackLUT.root"); |
041f7f97 | 161 | else sprintf (filename,"$(ALICE_ROOT)/FASTSIM/data/MUONtrackLUT-AZ.root"); |
d53fc881 | 162 | |
6255180c | 163 | TFile *file = new TFile(filename); |
164 | ReadLUT(file); | |
165 | SetBackground(bkg); | |
d53fc881 | 166 | UseSpline(0); |
6255180c | 167 | } |
168 | ||
169 | ||
170 | void AliMUONFastTracking::ReadLUT(TFile* file) | |
171 | { | |
041f7f97 | 172 | // |
173 | // read the lookup tables from file | |
174 | // | |
6255180c | 175 | TH3F *heff[5][3], *hacc[5][3], *hmeanp, *hsigmap, *hsigma1p, *hchi2p; |
176 | TH3F *hnormg2, *hmeang2, *hsigmag2, *hmeantheta, *hsigmatheta, *hchi2theta; | |
177 | TH3F *hmeanphi, *hsigmaphi, *hchi2phi; | |
178 | char tag[40], tag2[40]; | |
179 | ||
d53fc881 | 180 | printf ("Reading parameters from LUT file %s...\n",file->GetName()); |
181 | ||
041f7f97 | 182 | const Float_t kBkg[4] = {0, 0.5, 1, 2}; |
6255180c | 183 | for (Int_t ibkg=0; ibkg<4; ibkg++) { |
041f7f97 | 184 | sprintf (tag,"BKG%g",kBkg[ibkg]); |
6255180c | 185 | file->cd(tag); |
186 | for (Int_t isplp = 0; isplp<kSplitP; isplp++) { | |
187 | for (Int_t ispltheta = 0; ispltheta<kSplitTheta; ispltheta++) { | |
188 | sprintf (tag2,"heff[%d][%d]",isplp,ispltheta); | |
189 | heff[isplp][ispltheta] = (TH3F*)gDirectory->Get(tag2); | |
190 | sprintf (tag2,"hacc[%d][%d]",isplp,ispltheta); | |
191 | hacc[isplp][ispltheta] = (TH3F*)gDirectory->Get(tag2); | |
192 | } | |
193 | } | |
194 | hmeanp = (TH3F*)gDirectory->Get("hmeanp"); | |
195 | hsigmap = (TH3F*)gDirectory->Get("hsigmap"); | |
196 | hsigma1p = (TH3F*)gDirectory->Get("hsigma1p"); | |
197 | hchi2p = (TH3F*)gDirectory->Get("hchi2p"); | |
198 | hnormg2 = (TH3F*)gDirectory->Get("hnormg2"); | |
199 | hmeang2 = (TH3F*)gDirectory->Get("hmeang2"); | |
200 | hsigmag2 = (TH3F*)gDirectory->Get("hsigmag2"); | |
201 | hmeantheta = (TH3F*)gDirectory->Get("hmeantheta"); | |
202 | hsigmatheta = (TH3F*)gDirectory->Get("hsigmatheta"); | |
203 | hchi2theta = (TH3F*)gDirectory->Get("hchi2theta"); | |
204 | hmeanphi = (TH3F*)gDirectory->Get("hmeanphi"); | |
205 | hsigmaphi = (TH3F*)gDirectory->Get("hsigmaphi"); | |
206 | hchi2phi = (TH3F*)gDirectory->Get("hchi2phi"); | |
207 | ||
6255180c | 208 | for (Int_t ip=0; ip<fNbinp ;ip++) { |
209 | for (Int_t itheta=0; itheta<fNbintheta ;itheta++) { | |
210 | for (Int_t iphi=0; iphi<fNbinphi ;iphi++) { | |
211 | Float_t p = fPmin + fDeltaP * (ip + 0.5); | |
212 | Float_t theta = fThetamin + fDeltaTheta * (itheta + 0.5); | |
213 | Float_t phi = fPhimin + fDeltaPhi * (iphi + 0.5); | |
214 | ||
215 | fEntry[ip][itheta][iphi][ibkg]->fP = p; | |
216 | fEntry[ip][itheta][iphi][ibkg]->fMeanp = | |
217 | hmeanp->GetBinContent(ip+1,itheta+1,iphi+1); | |
218 | fEntry[ip][itheta][iphi][ibkg]->fSigmap = | |
219 | TMath::Abs(hsigmap->GetBinContent(ip+1,itheta+1,iphi+1)); | |
220 | fEntry[ip][itheta][iphi][ibkg]->fSigma1p = | |
221 | hsigma1p->GetBinContent(ip+1,itheta+1,iphi+1); | |
222 | fEntry[ip][itheta][iphi][ibkg]->fChi2p = | |
223 | hchi2p->GetBinContent(ip+1,itheta+1,iphi+1); | |
224 | fEntry[ip][itheta][iphi][ibkg]->fNormG2 = | |
225 | hnormg2->GetBinContent(ip+1,itheta+1,iphi+1); | |
226 | fEntry[ip][itheta][iphi][ibkg]->fMeanG2 = | |
227 | hmeang2->GetBinContent(ip+1,itheta+1,iphi+1); | |
228 | if (ibkg == 0) fEntry[ip][itheta][iphi][ibkg]->fSigmaG2 = 9999; | |
229 | else fEntry[ip][itheta][iphi][ibkg]->fSigmaG2 = | |
230 | hsigmag2->GetBinContent(ip+1,itheta+1,iphi+1); | |
231 | fEntry[ip][itheta][iphi][ibkg]->fTheta = theta; | |
232 | fEntry[ip][itheta][iphi][ibkg]->fMeantheta = | |
233 | hmeantheta->GetBinContent(ip+1,itheta+1,iphi+1); | |
234 | fEntry[ip][itheta][iphi][ibkg]->fSigmatheta = | |
235 | TMath::Abs(hsigmatheta->GetBinContent(ip+1,itheta+1,iphi+1)); | |
236 | fEntry[ip][itheta][iphi][ibkg]->fChi2theta = | |
237 | hchi2theta->GetBinContent(ip+1,itheta+1,iphi+1); | |
238 | fEntry[ip][itheta][iphi][ibkg]->fPhi = phi; | |
239 | fEntry[ip][itheta][iphi][ibkg]->fMeanphi = | |
240 | hmeanphi->GetBinContent(ip+1,itheta+1,iphi+1); | |
241 | fEntry[ip][itheta][iphi][ibkg]->fSigmaphi = | |
242 | TMath::Abs(hsigmaphi->GetBinContent(ip+1,itheta+1,iphi+1)); | |
243 | fEntry[ip][itheta][iphi][ibkg]->fChi2phi = | |
244 | hchi2phi->GetBinContent(ip+1,itheta+1,iphi+1); | |
245 | for (Int_t i=0; i<kSplitP; i++) { | |
246 | for (Int_t j=0; j<kSplitTheta; j++) { | |
247 | fEntry[ip][itheta][iphi][ibkg]->fAcc[i][j] = | |
248 | hacc[i][j]->GetBinContent(ip+1,itheta+1,iphi+1); | |
249 | fEntry[ip][itheta][iphi][ibkg]->fEff[i][j] = | |
250 | heff[i][j]->GetBinContent(ip+1,itheta+1,iphi+1); | |
251 | } | |
252 | } | |
253 | } // iphi | |
254 | } // itheta | |
255 | } // ip | |
256 | } // ibkg | |
257 | ||
258 | TGraph *graph = new TGraph(3); | |
259 | TF1 *f = new TF1("f","[0]+[1]*x"); | |
260 | ||
261 | for (Int_t ip=0; ip< fNbinp; ip++){ | |
262 | for (Int_t itheta=0; itheta< fNbintheta; itheta++){ | |
263 | for (Int_t iphi=0; iphi< fNbinphi; iphi++){ | |
264 | graph->SetPoint(0,0.5,fEntry[ip][itheta][iphi][1]->fSigmaG2); | |
265 | graph->SetPoint(1,1,fEntry[ip][itheta][iphi][2]->fSigmaG2); | |
266 | graph->SetPoint(2,2,fEntry[ip][itheta][iphi][3]->fSigmaG2); | |
267 | graph->Fit("f","q"); | |
268 | fEntry[ip][itheta][iphi][0]->fSigmaG2 = f->Eval(0); | |
269 | } | |
270 | } | |
271 | } | |
272 | f->Delete(); | |
273 | graph->Delete(); | |
274 | printf ("parameters read. \n"); | |
275 | } | |
276 | ||
277 | void AliMUONFastTracking::GetBinning(Int_t &nbinp, Float_t &pmin, Float_t &pmax, | |
278 | Int_t &nbintheta, Float_t &thetamin, | |
279 | Float_t &thetamax, | |
041f7f97 | 280 | Int_t &nbinphi, Float_t &phimin, Float_t &phimax) const |
6255180c | 281 | { |
041f7f97 | 282 | // |
283 | // gets the binning for the discrete parametrizations in the lookup table | |
284 | // | |
6255180c | 285 | nbinp = fNbinp; |
286 | pmin = fPmin; | |
287 | pmax = fPmax; | |
288 | nbintheta = fNbintheta; | |
289 | thetamin = fThetamin; | |
290 | thetamax = fThetamax; | |
291 | nbinphi = fNbinphi; | |
292 | phimin = fPhimin; | |
293 | phimax = fPhimax; | |
294 | } | |
295 | ||
296 | ||
297 | void AliMUONFastTracking::GetIpIthetaIphi(Float_t p, Float_t theta, Float_t phi, | |
298 | Int_t charge, Int_t &ip, Int_t &itheta, | |
041f7f97 | 299 | Int_t &iphi) const |
6255180c | 300 | { |
041f7f97 | 301 | // |
302 | // gets the id of the cells in the LUT for a given (p,theta,phi, charge) | |
303 | // | |
6255180c | 304 | if (charge < 0) phi = -phi; |
305 | ip = Int_t (( p - fPmin ) / fDeltaP); | |
306 | itheta = Int_t (( theta - fThetamin ) / fDeltaTheta); | |
307 | iphi = Int_t (( phi - fPhimin ) / fDeltaPhi); | |
308 | ||
1e68a0c5 | 309 | |
d53fc881 | 310 | if (ip< 0) ip = 0; |
311 | if (ip>= fNbinp) ip = fNbinp-1; | |
312 | if (itheta< 0) itheta = 0; | |
313 | if (itheta>= fNbintheta) itheta = fNbintheta-1; | |
6255180c | 314 | |
d53fc881 | 315 | if (iphi< 0) iphi = 0; |
316 | if (iphi>= fNbinphi) iphi = fNbinphi-1; | |
6255180c | 317 | } |
318 | ||
319 | void AliMUONFastTracking::GetSplit(Int_t ip, Int_t itheta, | |
041f7f97 | 320 | Int_t &nSplitP, Int_t &nSplitTheta) const |
321 | { | |
322 | // | |
323 | // the first cell is splitted in more bins for theta and momentum | |
324 | // parameterizations. Get the number of divisions for the splitted bins | |
325 | // | |
6255180c | 326 | if (ip==0) nSplitP = 5; |
327 | else nSplitP = 2; | |
328 | if (itheta==0) nSplitTheta = 3; | |
329 | else nSplitTheta = 1; | |
330 | } | |
331 | ||
332 | Float_t AliMUONFastTracking::Efficiency(Float_t p, Float_t theta, | |
333 | Float_t phi, Int_t charge){ | |
041f7f97 | 334 | // |
335 | // gets the tracking efficiency | |
336 | // | |
6255180c | 337 | Int_t ip=0, itheta=0, iphi=0; |
338 | GetIpIthetaIphi(p,theta,phi,charge,ip,itheta,iphi); | |
339 | Int_t nSplitP, nSplitTheta; | |
340 | GetSplit(ip,itheta,nSplitP,nSplitTheta); | |
341 | ||
342 | Float_t dp = p - fPmin; | |
343 | Int_t ibinp = Int_t(nSplitP*(dp - fDeltaP * Int_t(dp / fDeltaP))/fDeltaP); | |
344 | Float_t dtheta = theta - fThetamin; | |
345 | Int_t ibintheta = Int_t(nSplitTheta*(dtheta - fDeltaTheta * Int_t(dtheta / fDeltaTheta))/fDeltaTheta); | |
346 | Float_t eff = fCurrentEntry[ip][itheta][iphi]->fEff[ibinp][ibintheta]; | |
347 | return eff; | |
348 | } | |
349 | ||
350 | Float_t AliMUONFastTracking::Acceptance(Float_t p, Float_t theta, | |
351 | Float_t phi, Int_t charge){ | |
041f7f97 | 352 | // |
353 | // gets the geometrical acceptance | |
354 | // | |
6255180c | 355 | if (theta<fThetamin || theta>fThetamax) return 0; |
356 | ||
357 | Int_t ip=0, itheta=0, iphi=0; | |
358 | GetIpIthetaIphi(p,theta,phi,charge,ip,itheta,iphi); | |
359 | Int_t nSplitP, nSplitTheta; | |
360 | GetSplit(ip,itheta,nSplitP,nSplitTheta); | |
361 | // central value and corrections with spline | |
362 | ||
363 | Float_t dp = p - fPmin; | |
364 | Int_t ibinp = Int_t(nSplitP*(dp - fDeltaP * Int_t(dp / fDeltaP))/fDeltaP); | |
365 | Float_t dtheta = theta - fThetamin; | |
366 | Int_t ibintheta = Int_t(nSplitTheta*(dtheta - fDeltaTheta * Int_t(dtheta / fDeltaTheta))/fDeltaTheta); | |
367 | Float_t acc = fCurrentEntry[ip][itheta][iphi]->fAcc[ibinp][ibintheta]; | |
368 | return acc; | |
369 | } | |
370 | ||
371 | Float_t AliMUONFastTracking::MeanP(Float_t p, Float_t theta, | |
041f7f97 | 372 | Float_t phi, Int_t charge) const |
6255180c | 373 | { |
041f7f97 | 374 | // |
375 | // gets the mean value of the prec-pgen distribution | |
376 | // | |
6255180c | 377 | Int_t ip=0, itheta=0, iphi=0; |
378 | GetIpIthetaIphi(p,theta,phi,charge,ip,itheta,iphi); | |
379 | return fCurrentEntry[ip][itheta][iphi]->fMeanp; | |
380 | } | |
381 | ||
382 | Float_t AliMUONFastTracking::SigmaP(Float_t p, Float_t theta, | |
041f7f97 | 383 | Float_t phi, Int_t charge) const |
6255180c | 384 | { |
041f7f97 | 385 | // |
386 | // gets the width of the prec-pgen distribution | |
387 | // | |
6255180c | 388 | Int_t ip=0, itheta=0, iphi=0; |
389 | Int_t index; | |
390 | GetIpIthetaIphi(p,theta,phi,charge,ip,itheta,iphi); | |
391 | // central value and corrections with spline | |
392 | Float_t sigmap = fCurrentEntry[ip][itheta][iphi]->fSigmap; | |
393 | if (!fSpline) return sigmap; | |
394 | // corrections vs p, theta, phi | |
395 | index = iphi + fNbinphi * itheta; | |
396 | Double_t xmin,ymin,xmax,ymax; | |
397 | Float_t frac1 = fSplineSigmap[index][0]->Eval(p)/sigmap; | |
398 | ||
399 | if (p>fPmax-fDeltaP/2.) { | |
400 | Float_t s1 = fCurrentEntry[fNbinp-1][itheta][iphi]->fSigmap; | |
401 | Float_t s2 = fCurrentEntry[fNbinp-2][itheta][iphi]->fSigmap; | |
402 | Float_t s3 = fCurrentEntry[fNbinp-3][itheta][iphi]->fSigmap; | |
403 | Float_t p1 = fDeltaP * (fNbinp - 1 + 0.5) + fPmin; | |
404 | Float_t p2 = fDeltaP * (fNbinp - 2 + 0.5) + fPmin; | |
405 | Float_t p3 = fDeltaP * (fNbinp - 3 + 0.5) + fPmin; | |
406 | Float_t p12 = p1 * p1, p22 = p2 * p2, p32 = p3 * p3; | |
407 | Float_t d = p12*p2 + p1*p32 + p22*p3 - p32*p2 - p3*p12 - p22*p1; | |
408 | Float_t a = (s1*p2 + p1*s3 + s2*p3 - s3*p2 - p3*s1 - s2*p1) / d; | |
409 | Float_t b = (p12*s2 + s1*p32 + p22*s3 - p32*s2 - s3*p12 - p22*s1)/d; | |
410 | Float_t c = (p12*p2*s3 + p1*p32*s2 + p22*p3*s1 | |
411 | - p32*p2*s1 - p3*p12*s2 - p22*p1*s3) / d; | |
412 | Float_t sigma = a * p * p + b * p + c; | |
413 | frac1 = sigma/sigmap; | |
414 | } | |
415 | index = iphi + fNbinphi * ip; | |
416 | fSplineEff[index][1]->GetKnot(0,xmin,ymin); | |
417 | fSplineEff[index][1]->GetKnot(9,xmax,ymax); | |
418 | if (theta>xmax) theta = xmax; | |
419 | Float_t frac2 = fSplineSigmap[index][1]->Eval(theta)/sigmap; | |
420 | index = itheta + fNbintheta * ip; | |
421 | fSplineEff[index][2]->GetKnot(0,xmin,ymin); | |
422 | fSplineEff[index][2]->GetKnot(9,xmax,ymax); | |
423 | if (phi>xmax) phi = xmax; | |
424 | Float_t frac3 = fSplineSigmap[index][2]->Eval(phi)/sigmap; | |
425 | Float_t sigmatot = sigmap * frac1 * frac2 * frac3; | |
426 | if (sigmatot<0) sigmatot = sigmap; | |
427 | return sigmatot; | |
428 | } | |
429 | ||
430 | Float_t AliMUONFastTracking::Sigma1P(Float_t p, Float_t theta, | |
041f7f97 | 431 | Float_t phi, Int_t charge) const |
6255180c | 432 | { |
041f7f97 | 433 | // |
434 | // gets the width correction of the prec-pgen distribution (see FitP) | |
435 | // | |
6255180c | 436 | Int_t ip=0, itheta=0, iphi=0; |
437 | GetIpIthetaIphi(p,theta,phi,charge,ip,itheta,iphi); | |
438 | if (p>fPmax) { | |
439 | // linear extrapolation of sigmap for p out of range | |
440 | Float_t s1 = fCurrentEntry[fNbinp-1][itheta][iphi]->fSigma1p; | |
441 | Float_t s2 = fCurrentEntry[fNbinp-2][itheta][iphi]->fSigma1p; | |
442 | Float_t p1 = fDeltaP * (fNbinp - 1 + 0.5) + fPmin; | |
443 | Float_t p2 = fDeltaP * (fNbinp - 2 + 0.5) + fPmin; | |
444 | Float_t sigma = 1./(p1-p2) * ( (s1-s2)*p + (s2-s1)*p1 + s1*(p1-p2) ); | |
445 | return sigma; | |
446 | } | |
447 | else return fCurrentEntry[ip][itheta][iphi]->fSigma1p; | |
448 | } | |
449 | ||
450 | Float_t AliMUONFastTracking::NormG2(Float_t p, Float_t theta, | |
041f7f97 | 451 | Float_t phi, Int_t charge) const |
6255180c | 452 | { |
041f7f97 | 453 | // |
454 | // gets the relative normalization of the background | |
455 | // (gaussian) component in the prec-pgen distribution | |
456 | // | |
6255180c | 457 | Int_t ip=0, itheta=0, iphi=0; |
458 | GetIpIthetaIphi(p,theta,phi,charge,ip,itheta,iphi); | |
459 | if (p>fPmax) { | |
460 | // linear extrapolation of sigmap for p out of range | |
461 | Float_t s1 = fCurrentEntry[fNbinp-1][itheta][iphi]->fNormG2; | |
462 | Float_t s2 = fCurrentEntry[fNbinp-2][itheta][iphi]->fNormG2; | |
463 | Float_t p1 = fDeltaP * (fNbinp - 1 + 0.5) + fPmin; | |
464 | Float_t p2 = fDeltaP * (fNbinp - 2 + 0.5) + fPmin; | |
465 | Float_t norm = 1./(p1-p2) * ( (s1-s2)*p + (s2-s1)*p1 + s1*(p1-p2) ); | |
466 | return norm; | |
467 | } | |
468 | else return fCurrentEntry[ip][itheta][iphi]->fNormG2; | |
469 | } | |
470 | ||
471 | Float_t AliMUONFastTracking::MeanG2(Float_t p, Float_t theta, | |
041f7f97 | 472 | Float_t phi, Int_t charge) const |
6255180c | 473 | { |
041f7f97 | 474 | // |
475 | // gets the mean value of the background | |
476 | // (gaussian) component in the prec-pgen distribution | |
477 | // | |
6255180c | 478 | Int_t ip=0, itheta=0, iphi=0; |
479 | GetIpIthetaIphi(p,theta,phi,charge,ip,itheta,iphi); | |
480 | if (p>fPmax) { | |
481 | // linear extrapolation of sigmap for p out of range | |
482 | Float_t s1 = fCurrentEntry[fNbinp-1][itheta][iphi]->fMeanG2; | |
483 | Float_t s2 = fCurrentEntry[fNbinp-2][itheta][iphi]->fMeanG2; | |
484 | Float_t p1 = fDeltaP * (fNbinp - 1 + 0.5) + fPmin; | |
485 | Float_t p2 = fDeltaP * (fNbinp - 2 + 0.5) + fPmin; | |
486 | Float_t norm = 1./(p1-p2) * ( (s1-s2)*p + (s2-s1)*p1 + s1*(p1-p2) ); | |
487 | return norm; | |
488 | } | |
489 | else return fCurrentEntry[ip][itheta][iphi]->fMeanG2; | |
490 | } | |
491 | ||
492 | Float_t AliMUONFastTracking::SigmaG2(Float_t p, Float_t theta, | |
041f7f97 | 493 | Float_t phi, Int_t charge) const |
6255180c | 494 | { |
041f7f97 | 495 | // |
496 | // gets the width of the background | |
497 | // (gaussian) component in the prec-pgen distribution | |
498 | // | |
6255180c | 499 | Int_t ip=0, itheta=0, iphi=0; |
500 | GetIpIthetaIphi(p,theta,phi,charge,ip,itheta,iphi); | |
501 | if (p>fPmax) { | |
502 | // linear extrapolation of sigmap for p out of range | |
503 | Float_t s1 = fCurrentEntry[fNbinp-1][itheta][iphi]->fSigmaG2; | |
504 | Float_t s2 = fCurrentEntry[fNbinp-2][itheta][iphi]->fSigmaG2; | |
505 | Float_t p1 = fDeltaP * (fNbinp - 1 + 0.5) + fPmin; | |
506 | Float_t p2 = fDeltaP * (fNbinp - 2 + 0.5) + fPmin; | |
507 | Float_t sigma = 1./(p1-p2) * ( (s1-s2)*p + (s2-s1)*p1 + s1*(p1-p2) ); | |
508 | return sigma; | |
509 | } | |
510 | else return fCurrentEntry[ip][itheta][iphi]->fSigmaG2; | |
511 | } | |
512 | ||
513 | ||
514 | Float_t AliMUONFastTracking::MeanTheta(Float_t p, Float_t theta, | |
041f7f97 | 515 | Float_t phi, Int_t charge) const |
6255180c | 516 | { |
041f7f97 | 517 | // |
518 | // gets the mean value of the thetarec-thetagen distribution | |
519 | // | |
6255180c | 520 | Int_t ip=0, itheta=0, iphi=0; |
521 | GetIpIthetaIphi(p,theta,phi,charge,ip,itheta,iphi); | |
522 | return fCurrentEntry[ip][itheta][iphi]->fMeantheta; | |
523 | } | |
524 | ||
041f7f97 | 525 | Float_t AliMUONFastTracking::SigmaTheta(Float_t p, Float_t theta, |
526 | Float_t phi, Int_t charge) const | |
527 | { | |
528 | // | |
529 | // gets the width of the thetarec-thetagen distribution | |
530 | // | |
6255180c | 531 | Int_t ip=0, itheta=0, iphi=0; |
532 | Int_t index; | |
533 | GetIpIthetaIphi(p,theta,phi,charge,ip,itheta,iphi); | |
534 | // central value and corrections with spline | |
535 | Float_t sigmatheta = fCurrentEntry[ip][itheta][iphi]->fSigmatheta; | |
536 | if (!fSpline) return sigmatheta; | |
537 | // corrections vs p, theta, phi | |
538 | index = iphi + fNbinphi * itheta; | |
539 | Double_t xmin,ymin,xmax,ymax; | |
540 | Float_t frac1 = fSplineSigmatheta[index][0]->Eval(p)/sigmatheta; | |
541 | if (p>fPmax-fDeltaP/2.) { | |
542 | // linear extrapolation of sigmap for p out of range | |
543 | Float_t s1 = fCurrentEntry[fNbinp-1][itheta][iphi]->fSigmatheta; | |
544 | Float_t s2 = fCurrentEntry[fNbinp-2][itheta][iphi]->fSigmatheta; | |
545 | Float_t p1 = fDeltaP * (fNbinp - 1 + 0.5) + fPmin; | |
546 | Float_t p2 = fDeltaP * (fNbinp - 2 + 0.5) + fPmin; | |
547 | Float_t sigma = 1./(p1-p2) * ( (s1-s2)*p + (s2-s1)*p1 + s1*(p1-p2) ); | |
548 | frac1=sigma/sigmatheta; | |
549 | } | |
550 | index = iphi + fNbinphi * ip; | |
551 | fSplineEff[index][1]->GetKnot(0,xmin,ymin); | |
552 | fSplineEff[index][1]->GetKnot(9,xmax,ymax); | |
553 | if (theta>xmax) theta = xmax; | |
554 | Float_t frac2 = fSplineSigmatheta[index][1]->Eval(theta)/sigmatheta; | |
555 | index = itheta + fNbintheta * ip; | |
556 | fSplineEff[index][2]->GetKnot(0,xmin,ymin); | |
557 | fSplineEff[index][2]->GetKnot(9,xmax,ymax); | |
558 | if (phi>xmax) phi = xmax; | |
559 | Float_t frac3 = fSplineSigmatheta[index][2]->Eval(phi)/sigmatheta; | |
560 | return sigmatheta * frac1 * frac2 * frac3; | |
561 | } | |
562 | ||
563 | ||
564 | Float_t AliMUONFastTracking::MeanPhi(Float_t p, Float_t theta, | |
041f7f97 | 565 | Float_t phi, Int_t charge) const |
566 | { | |
567 | // | |
568 | // gets the mean value of the phirec-phigen distribution | |
569 | // | |
6255180c | 570 | Int_t ip=0, itheta=0, iphi=0; |
571 | GetIpIthetaIphi(p,theta,phi,charge,ip,itheta,iphi); | |
572 | return fCurrentEntry[ip][itheta][iphi]->fMeanphi; | |
573 | } | |
574 | ||
575 | Float_t AliMUONFastTracking::SigmaPhi(Float_t p, Float_t theta, | |
576 | Float_t phi, Int_t charge){ | |
041f7f97 | 577 | // |
578 | // gets the width of the phirec-phigen distribution | |
579 | // | |
6255180c | 580 | Int_t ip=0, itheta=0, iphi=0; |
581 | Int_t index; | |
582 | GetIpIthetaIphi(p,theta,phi,charge,ip,itheta,iphi); | |
583 | // central value and corrections with spline | |
584 | Float_t sigmaphi = fCurrentEntry[ip][itheta][iphi]->fSigmaphi; | |
585 | if (!fSpline) return sigmaphi; | |
586 | // corrections vs p, theta, phi | |
587 | index = iphi + fNbinphi * itheta; | |
588 | Float_t frac1 = fSplineSigmaphi[index][0]->Eval(p)/sigmaphi; | |
589 | Double_t xmin,ymin,xmax,ymax; | |
590 | if (p>fPmax-fDeltaP/2.) { | |
591 | Float_t s1 = fCurrentEntry[fNbinp-1][itheta][iphi]->fSigmaphi; | |
592 | Float_t s2 = fCurrentEntry[fNbinp-2][itheta][iphi]->fSigmaphi; | |
593 | Float_t p1 = fDeltaP * (fNbinp - 1 + 0.5) + fPmin; | |
594 | Float_t p2 = fDeltaP * (fNbinp - 2 + 0.5) + fPmin; | |
595 | Float_t sigma = 1./(p1-p2) * ( (s1-s2)*p + (s2-s1)*p1 + s1*(p1-p2) ); | |
596 | frac1 = sigma/sigmaphi; | |
597 | } | |
598 | ||
599 | index = iphi + fNbinphi * ip; | |
600 | fSplineEff[index][1]->GetKnot(0,xmin,ymin); | |
601 | fSplineEff[index][1]->GetKnot(9,xmax,ymax); | |
602 | if (theta>xmax) theta = xmax; | |
603 | Float_t frac2 = fSplineSigmaphi[index][1]->Eval(theta)/sigmaphi; | |
604 | index = itheta + fNbintheta * ip; | |
605 | fSplineEff[index][2]->GetKnot(0,xmin,ymin); | |
606 | fSplineEff[index][2]->GetKnot(9,xmax,ymax); | |
607 | if (phi>xmax) phi = xmax; | |
608 | Float_t frac3 = fSplineSigmaphi[index][2]->Eval(phi)/sigmaphi; | |
609 | return sigmaphi * frac1 * frac2 * frac3; | |
610 | } | |
611 | ||
612 | void AliMUONFastTracking::SetSpline(){ | |
041f7f97 | 613 | // |
614 | // sets the spline functions for a smooth behaviour of the parameters | |
615 | // when going from one cell to another | |
616 | // | |
6255180c | 617 | printf ("Setting spline functions..."); |
618 | char splname[40]; | |
619 | Double_t x[20][3]; | |
620 | Double_t x2[50][3]; | |
621 | Int_t nbins[3] = {fNbinp, fNbintheta, fNbinphi}; | |
622 | Double_t xspl[20],yeff[50],ysigmap[20],ysigma1p[20]; | |
623 | Double_t yacc[50], ysigmatheta[20],ysigmaphi[20]; | |
624 | Double_t xsp2[50]; | |
625 | // let's calculate the x axis for p, theta, phi | |
626 | ||
627 | Int_t i, ispline, ivar; | |
628 | for (i=0; i< fNbinp; i++) x[i][0] = fPmin + fDeltaP * (i + 0.5); | |
629 | for (i=0; i< fNbintheta; i++) x[i][1] = fThetamin + fDeltaTheta * (i + 0.5); | |
630 | for (i=0; i< fNbinphi; i++) x[i][2] = fPhimin + fDeltaPhi * (i + 0.5); | |
631 | ||
632 | for (i=0; i< 5 * fNbinp; i++) x2[i][0] = fPmin + fDeltaP * (i + 0.5)/5.; | |
633 | for (i=0; i< 5 * fNbintheta; i++) x2[i][1] = fThetamin + fDeltaTheta * (i + 0.5)/5.; | |
634 | for (i=0; i< 5 * fNbinphi; i++) x2[i][2] = fPhimin + fDeltaPhi * (i + 0.5)/5.; | |
635 | ||
636 | // splines in p | |
637 | ivar = 0; | |
638 | for (i=0; i<nbins[ivar]; i++) xspl[i] = x[i][ivar]; | |
639 | for (i=0; i<5 * nbins[ivar]; i++) xsp2[i] = x2[i][ivar]; | |
640 | ispline=0; | |
641 | for (Int_t itheta=0; itheta< fNbintheta; itheta++){ | |
642 | for (Int_t iphi=0; iphi< fNbinphi; iphi++){ | |
643 | for (Int_t ip=0; ip<fNbinp; ip++) { | |
644 | // for (Int_t i=0; i<5; i++) { | |
645 | // yeff[5 * ip + i] = fCurrentEntry[ip][itheta][iphi]->fEff[i]; | |
646 | // yacc[5 * ip + i] = fCurrentEntry[ip][itheta][iphi]->fAcc[i]; | |
647 | // } | |
648 | ysigmap[ip] = fCurrentEntry[ip][itheta][iphi]->fSigmap; | |
649 | ysigma1p[ip] = fCurrentEntry[ip][itheta][iphi]->fSigma1p; | |
650 | ysigmatheta[ip] = fCurrentEntry[ip][itheta][iphi]->fSigmatheta; | |
651 | ysigmaphi[ip] = fCurrentEntry[ip][itheta][iphi]->fSigmaphi; | |
652 | } | |
653 | if (fPrintLevel>3) cout << " creating new spline " << splname << endl; | |
654 | sprintf (splname,"fSplineEff[%d][%d]",ispline,ivar); | |
655 | fSplineEff[ispline][ivar] = new TSpline3(splname,xsp2,yeff,5 * nbins[ivar]); | |
656 | sprintf (splname,"fSplineAcc[%d][%d]",ispline,ivar); | |
657 | fSplineAcc[ispline][ivar] = new TSpline3(splname,xsp2,yacc,5 * nbins[ivar]); | |
658 | sprintf (splname,"fSplineSigmap[%d][%d]",ispline,ivar); | |
659 | fSplineSigmap[ispline][ivar] = new TSpline3(splname,xspl,ysigmap,nbins[ivar]); | |
660 | sprintf (splname,"fSplineSigma1p[%d][%d]",ispline,ivar); | |
661 | fSplineSigma1p[ispline][ivar] = new TSpline3(splname,xspl,ysigma1p,nbins[ivar]); | |
662 | sprintf (splname,"fSplineSigmatheta[%d][%d]",ispline,ivar); | |
663 | fSplineSigmatheta[ispline][ivar] = new TSpline3(splname,xspl,ysigmatheta,nbins[ivar]); | |
664 | sprintf (splname,"fSplineSigmaphi[%d][%d]",ispline,ivar); | |
665 | fSplineSigmaphi[ispline][ivar] = new TSpline3(splname,xspl,ysigmaphi,nbins[ivar]); | |
666 | ispline++; | |
667 | } | |
668 | } | |
669 | ||
670 | ivar = 1; | |
671 | for (i=0; i<nbins[ivar]; i++) xspl[i] = x[i][ivar]; | |
672 | ispline=0; | |
673 | for (Int_t ip=0; ip<fNbinp; ip++) { | |
674 | for (Int_t iphi=0; iphi< fNbinphi; iphi++){ | |
675 | for (Int_t itheta=0; itheta< fNbintheta; itheta++){ | |
676 | // for efficiency and acceptance let's take the central value | |
677 | // yeff[itheta] = fCurrentEntry[ip][itheta][iphi]->fEff[2]; | |
678 | // yacc[itheta] = fCurrentEntry[ip][itheta][iphi]->fAcc[2]; | |
679 | ysigmap[itheta] = fCurrentEntry[ip][itheta][iphi]->fSigmap; | |
680 | ysigma1p[itheta] = fCurrentEntry[ip][itheta][iphi]->fSigma1p; | |
681 | ysigmatheta[itheta] = fCurrentEntry[ip][itheta][iphi]->fSigmatheta; | |
682 | ysigmaphi[itheta] = fCurrentEntry[ip][itheta][iphi]->fSigmaphi; | |
683 | } | |
684 | if (fPrintLevel>3) cout << " creating new spline " << splname << endl; | |
685 | sprintf (splname,"fSplineEff[%d][%d]",ispline,ivar); | |
686 | fSplineEff[ispline][ivar] = new TSpline3(splname,xspl,yeff, nbins[ivar]); | |
687 | sprintf (splname,"fSplineAcc[%d][%d]",ispline,ivar); | |
688 | fSplineAcc[ispline][ivar] = new TSpline3(splname,xspl,yacc, nbins[ivar]); | |
689 | sprintf (splname,"fSplineSigmap[%d][%d]",ispline,ivar); | |
690 | fSplineSigmap[ispline][ivar] = new TSpline3(splname,xspl,ysigmap,nbins[ivar]); | |
691 | sprintf (splname,"fSplineSigma1p[%d][%d]",ispline,ivar); | |
692 | fSplineSigma1p[ispline][ivar] = new TSpline3(splname,xspl,ysigma1p,nbins[ivar]); | |
693 | sprintf (splname,"fSplineSigmatheta[%d][%d]",ispline,ivar); | |
694 | fSplineSigmatheta[ispline][ivar] = new TSpline3(splname,xspl,ysigmatheta,nbins[ivar]); | |
695 | sprintf (splname,"fSplineSigmaphi[%d][%d]",ispline,ivar); | |
696 | fSplineSigmaphi[ispline][ivar] = new TSpline3(splname,xspl,ysigmaphi,nbins[ivar]); | |
697 | ispline++; | |
698 | } | |
699 | } | |
700 | ||
701 | ivar = 2; | |
702 | for (i=0; i<nbins[ivar]; i++) xspl[i] = x[i][ivar]; | |
703 | ispline=0; | |
704 | for (Int_t ip=0; ip<fNbinp; ip++) { | |
705 | for (Int_t itheta=0; itheta< fNbintheta; itheta++){ | |
706 | for (Int_t iphi=0; iphi< fNbinphi; iphi++){ | |
707 | // for efficiency and acceptance let's take the central value | |
708 | // yeff[iphi] = fCurrentEntry[ip][itheta][iphi]->fEff[2]; | |
709 | // yacc[iphi] = fCurrentEntry[ip][itheta][iphi]->fAcc[2]; | |
710 | ysigmap[iphi] = fCurrentEntry[ip][itheta][iphi]->fSigmap; | |
711 | ysigma1p[iphi] = fCurrentEntry[ip][itheta][iphi]->fSigma1p; | |
712 | ysigmatheta[iphi] = fCurrentEntry[ip][itheta][iphi]->fSigmatheta; | |
713 | ysigmaphi[iphi] = fCurrentEntry[ip][itheta][iphi]->fSigmaphi; | |
714 | } | |
715 | if (fPrintLevel>3) cout << " creating new spline " << splname << endl; | |
716 | sprintf (splname,"fSplineEff[%d][%d]",ispline,ivar); | |
717 | fSplineEff[ispline][ivar] = new TSpline3(splname,xspl,yeff, nbins[ivar]); | |
718 | sprintf (splname,"fSplineAcc[%d][%d]",ispline,ivar); | |
719 | fSplineAcc[ispline][ivar] = new TSpline3(splname,xspl,yacc, nbins[ivar]); | |
720 | sprintf (splname,"fSplineSigmap[%d][%d]",ispline,ivar); | |
721 | fSplineSigmap[ispline][ivar] = new TSpline3(splname,xspl,ysigmap,nbins[ivar]); | |
722 | sprintf (splname,"fSplineSigma1p[%d][%d]",ispline,ivar); | |
723 | fSplineSigma1p[ispline][ivar] = new TSpline3(splname,xspl,ysigma1p,nbins[ivar]); | |
724 | sprintf (splname,"fSplineSigmatheta[%d][%d]",ispline,ivar); | |
725 | fSplineSigmatheta[ispline][ivar] = new TSpline3(splname,xspl,ysigmatheta,nbins[ivar]); | |
726 | sprintf (splname,"fSplineSigmaphi[%d][%d]",ispline,ivar); | |
727 | fSplineSigmaphi[ispline][ivar] = new TSpline3(splname,xspl,ysigmaphi,nbins[ivar]); | |
728 | ispline++; | |
729 | } | |
730 | } | |
731 | printf ("...done\n"); | |
732 | } | |
733 | ||
6255180c | 734 | void AliMUONFastTracking::SetBackground(Float_t bkg){ |
041f7f97 | 735 | // |
6255180c | 736 | // linear interpolation of the parameters in the LUT between 2 values where |
737 | // the background has been actually calculated | |
041f7f97 | 738 | // |
6255180c | 739 | if (bkg>2) printf ("WARNING: unsafe extrapolation!\n"); |
740 | fBkg = bkg; | |
741 | ||
041f7f97 | 742 | Float_t bkgLevel[4] = {0, 0.5, 1, 2}; // bkg values for which LUT is calculated |
6255180c | 743 | Int_t ibkg; |
041f7f97 | 744 | for (ibkg=0; ibkg<4; ibkg++) if ( bkg < bkgLevel[ibkg]) break; |
6255180c | 745 | if (ibkg == 4) ibkg--; |
746 | if (ibkg == 0) ibkg++; | |
747 | ||
041f7f97 | 748 | Float_t x0 = bkgLevel[ibkg-1]; |
749 | Float_t x1 = bkgLevel[ibkg]; | |
6255180c | 750 | Float_t x = (bkg - x0) / (x1 - x0); |
751 | ||
752 | Float_t y0, y1; | |
753 | ||
754 | for (Int_t ip=0; ip< fNbinp; ip++){ | |
755 | for (Int_t itheta=0; itheta< fNbintheta; itheta++){ | |
756 | for (Int_t iphi=0; iphi< fNbinphi; iphi++){ | |
757 | fCurrentEntry[ip][itheta][iphi]->fP = fEntry[ip][itheta][iphi][ibkg]->fP; | |
758 | fCurrentEntry[ip][itheta][iphi]->fTheta = fEntry[ip][itheta][iphi][ibkg]->fTheta; | |
759 | fCurrentEntry[ip][itheta][iphi]->fPhi = fEntry[ip][itheta][iphi][ibkg]->fPhi; | |
760 | fCurrentEntry[ip][itheta][iphi]->fChi2p = -1; | |
761 | fCurrentEntry[ip][itheta][iphi]->fChi2theta = -1; | |
762 | fCurrentEntry[ip][itheta][iphi]->fChi2phi = -1; | |
763 | ||
764 | y0 = fEntry[ip][itheta][iphi][ibkg-1]->fMeanp; | |
765 | y1 = fEntry[ip][itheta][iphi][ibkg]->fMeanp; | |
766 | fCurrentEntry[ip][itheta][iphi] ->fMeanp = (y1 - y0) * x + y0; | |
767 | y0 = fEntry[ip][itheta][iphi][ibkg-1]->fMeantheta; | |
768 | y1 = fEntry[ip][itheta][iphi][ibkg]->fMeantheta; | |
769 | fCurrentEntry[ip][itheta][iphi] ->fMeantheta = (y1 - y0) * x + y0; | |
770 | y0 = fEntry[ip][itheta][iphi][ibkg-1]->fMeanphi; | |
771 | y1 = fEntry[ip][itheta][iphi][ibkg]->fMeanphi; | |
772 | fCurrentEntry[ip][itheta][iphi] ->fMeanphi = (y1 - y0) * x + y0; | |
773 | y0 = fEntry[ip][itheta][iphi][ibkg-1]->fSigmap; | |
774 | y1 = fEntry[ip][itheta][iphi][ibkg]->fSigmap; | |
775 | fCurrentEntry[ip][itheta][iphi] ->fSigmap = (y1 - y0) * x + y0; | |
776 | y0 = fEntry[ip][itheta][iphi][ibkg-1]->fSigmatheta; | |
777 | y1 = fEntry[ip][itheta][iphi][ibkg]->fSigmatheta; | |
778 | fCurrentEntry[ip][itheta][iphi] ->fSigmatheta = (y1 - y0) * x + y0; | |
779 | y0 = fEntry[ip][itheta][iphi][ibkg-1]->fSigmaphi; | |
780 | y1 = fEntry[ip][itheta][iphi][ibkg]->fSigmaphi; | |
781 | fCurrentEntry[ip][itheta][iphi] ->fSigmaphi = (y1 - y0) * x + y0; | |
782 | y0 = fEntry[ip][itheta][iphi][ibkg-1]->fSigma1p; | |
783 | y1 = fEntry[ip][itheta][iphi][ibkg]->fSigma1p; | |
784 | fCurrentEntry[ip][itheta][iphi] ->fSigma1p = (y1 - y0) * x + y0; | |
785 | y0 = fEntry[ip][itheta][iphi][ibkg-1]->fNormG2; | |
786 | y1 = fEntry[ip][itheta][iphi][ibkg]->fNormG2; | |
787 | fCurrentEntry[ip][itheta][iphi] ->fNormG2 = (y1 - y0) * x + y0; | |
788 | y0 = fEntry[ip][itheta][iphi][ibkg-1]->fMeanG2; | |
789 | y1 = fEntry[ip][itheta][iphi][ibkg]->fMeanG2; | |
790 | fCurrentEntry[ip][itheta][iphi] ->fMeanG2 = (y1 - y0) * x + y0; | |
791 | ||
792 | y0 = fEntry[ip][itheta][iphi][ibkg-1]->fSigmaG2; | |
793 | y1 = fEntry[ip][itheta][iphi][ibkg]->fSigmaG2; | |
794 | fCurrentEntry[ip][itheta][iphi] ->fSigmaG2 = (y1 - y0) * x + y0; | |
795 | for (Int_t i=0; i<kSplitP; i++) { | |
796 | for (Int_t j=0; j<kSplitTheta; j++) { | |
797 | fCurrentEntry[ip][itheta][iphi]->fAcc[i][j] = fEntry[ip][itheta][iphi][ibkg]->fAcc[i][j]; | |
798 | y0 = fEntry[ip][itheta][iphi][ibkg-1]->fEff[i][j]; | |
799 | y1 = fEntry[ip][itheta][iphi][ibkg]->fEff[i][j]; | |
800 | fCurrentEntry[ip][itheta][iphi]->fEff[i][j] = (y1 - y0) * x + y0; | |
801 | } | |
802 | } | |
803 | } | |
804 | } | |
805 | } | |
806 | SetSpline(); | |
807 | } | |
808 | ||
d53fc881 | 809 | TF1* AliMUONFastTracking::GetFitP(Int_t ip,Int_t itheta,Int_t iphi) { |
041f7f97 | 810 | // gets the correct prec-pgen distribution for a given LUT cell |
c6ba3ff4 | 811 | if (!fFitp[ip][itheta][iphi]) { |
812 | char name[256]; | |
813 | sprintf(name, "fit_%d_%d_%d", ip, itheta, iphi); | |
814 | fFitp[ip][itheta][iphi] = new TF1(name ,FitP,-20.,20.,6); | |
d53fc881 | 815 | fFitp[ip][itheta][iphi]->SetNpx(500); |
1e68a0c5 | 816 | fFitp[ip][itheta][iphi]->SetParameters(0.,0.,0.,0.,0.,0.); |
d53fc881 | 817 | } |
818 | return fFitp[ip][itheta][iphi]; | |
819 | } | |
6255180c | 820 | |
041f7f97 | 821 | AliMUONFastTracking& AliMUONFastTracking::operator=(const AliMUONFastTracking& rhs) |
822 | { | |
823 | // Assignment operator | |
824 | rhs.Copy(*this); | |
825 | return *this; | |
826 | } | |
827 | ||
15a060e4 | 828 | void AliMUONFastTracking::Copy(TObject&) const |
041f7f97 | 829 | { |
830 | // | |
831 | // Copy | |
832 | // | |
833 | Fatal("Copy","Not implemented!\n"); | |
834 | } | |
6255180c | 835 | |
836 | ||
837 | ||
838 | ||
839 | ||
840 | ||
841 | ||
842 |