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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 | $Log$ | |
041f7f97 | 18 | Revision 1.6 2003/08/12 15:16:25 morsch |
19 | Saver initialisation of fFitp array. (Lenaic COUEDEL) | |
20 | ||
1e68a0c5 | 21 | Revision 1.5 2003/08/05 16:14:20 morsch |
22 | Some problems with too big fluctuations corrected. (A. de Falco) | |
23 | ||
d53fc881 | 24 | Revision 1.2 2003/01/08 10:29:33 morsch |
25 | Path to data file changed. | |
26 | ||
27 | Revision 1.1 2003/01/06 10:13:33 morsch | |
28 | First commit. | |
29 | ||
30 | */ | |
6255180c | 31 | |
041f7f97 | 32 | //------------------------------------------------------------------------- |
33 | // Class AliMUONFastTracking | |
34 | // | |
35 | // Manager for the fast simulation of tracking in the muon spectrometer | |
36 | // This class reads the lookup tables containing the parameterization | |
37 | // of the deltap, deltatheta, deltaphi for different background levels | |
38 | // and provides the related smeared parameters. | |
39 | // Used by AliFastMuonTrackingEff, AliFastMuonTrackingAcc, | |
40 | // AliFastMuonTrackingRes. | |
41 | //------------------------------------------------------------------------- | |
42 | ||
6255180c | 43 | #include "AliMUONFastTracking.h" |
44 | #include "AliMUONFastTrackingEntry.h" | |
6255180c | 45 | #include <TSpline.h> |
46 | #include <TFile.h> | |
6255180c | 47 | #include <TH3.h> |
48 | #include <TF1.h> | |
49 | #include <TRandom.h> | |
50 | #include <stdlib.h> | |
51 | #include <stdio.h> | |
52 | #include <string.h> | |
53 | #include <Riostream.h> | |
54 | ||
55 | ClassImp(AliMUONFastTracking) | |
56 | ||
041f7f97 | 57 | |
6255180c | 58 | AliMUONFastTracking* AliMUONFastTracking::fgMUONFastTracking=NULL; |
59 | ||
60 | static Double_t FitP(Double_t *x, Double_t *par){ | |
61 | Double_t dx = x[0] - par[0]; | |
62 | Double_t dx2 = x[0] - par[4]; | |
63 | Double_t sigma = par[1] * ( 1 + par[2] * dx); | |
64 | if (sigma == 0) { | |
65 | ||
66 | return 0.; | |
67 | } | |
68 | Double_t fasymm = TMath::Exp(-0.5 * dx * dx / (sigma * sigma)); | |
69 | Double_t sigma2 = par[1] * par[5]; | |
70 | Double_t fgauss = TMath::Exp(-0.5 * dx2 * dx2 / (sigma2 * sigma2)); | |
d53fc881 | 71 | Double_t value = fasymm + par[3] * fgauss; |
72 | return value; | |
6255180c | 73 | } |
74 | ||
041f7f97 | 75 | AliMUONFastTracking::AliMUONFastTracking(const AliMUONFastTracking & ft):TObject() |
76 | { | |
77 | // Copy constructor | |
78 | ft.Copy(*this); | |
79 | } | |
80 | ||
81 | ||
6255180c | 82 | AliMUONFastTracking* AliMUONFastTracking::Instance() |
83 | { | |
84 | // Set random number generator | |
85 | if (fgMUONFastTracking) { | |
86 | return fgMUONFastTracking; | |
87 | } else { | |
88 | fgMUONFastTracking = new AliMUONFastTracking(); | |
89 | return fgMUONFastTracking; | |
90 | } | |
91 | } | |
92 | ||
93 | AliMUONFastTracking::AliMUONFastTracking() | |
94 | { | |
041f7f97 | 95 | // |
96 | // constructor | |
97 | // | |
1e68a0c5 | 98 | for (Int_t i = 0; i<20;i++) { |
99 | for (Int_t j = 0; j<20; j++) { | |
100 | for (Int_t k = 0; k<20; k++) { | |
101 | fFitp[i][j][k] = 0x0; | |
102 | } | |
103 | } | |
104 | } | |
105 | ||
d53fc881 | 106 | fClusterFinder = kOld; |
6255180c | 107 | fPrintLevel = 1; |
108 | // read binning; temporarily put by hand | |
109 | Float_t pmin = 0, pmax = 200; | |
110 | Int_t nbinp = 10; | |
111 | Float_t thetamin = 2, thetamax = 9; | |
112 | Int_t nbintheta=10; | |
113 | Float_t phimin = -180, phimax =180; | |
114 | Int_t nbinphi=10; | |
115 | //-------------------------------------- | |
116 | ||
117 | fNbinp = nbinp; | |
118 | fPmin = pmin; | |
119 | fPmax = pmax; | |
120 | ||
121 | fNbintheta = nbintheta; | |
122 | fThetamin = thetamin; | |
123 | fThetamax = thetamax; | |
124 | ||
125 | fNbinphi = nbinphi; | |
126 | fPhimin = phimin; | |
127 | fPhimax = phimax; | |
128 | ||
129 | fDeltaP = (fPmax-fPmin)/fNbinp; | |
130 | fDeltaTheta = (fThetamax-fThetamin)/fNbintheta; | |
131 | fDeltaPhi = (fPhimax-fPhimin)/fNbinphi; | |
132 | } | |
133 | ||
134 | void AliMUONFastTracking::Init(Float_t bkg) | |
135 | { | |
136 | // | |
137 | // Initialization | |
138 | // | |
139 | for (Int_t ip=0; ip< fNbinp; ip++){ | |
140 | for (Int_t itheta=0; itheta< fNbintheta; itheta++){ | |
141 | for (Int_t iphi=0; iphi< fNbinphi; iphi++){ | |
142 | fCurrentEntry[ip][itheta][iphi] = new AliMUONFastTrackingEntry; | |
143 | for (Int_t ibkg=0; ibkg<4; ibkg++){ | |
144 | fEntry[ip][itheta][iphi][ibkg] = new AliMUONFastTrackingEntry; | |
145 | } | |
146 | } | |
147 | } | |
148 | } | |
149 | ||
150 | char filename [100]; | |
d53fc881 | 151 | if (fClusterFinder==kOld) sprintf (filename,"$(ALICE_ROOT)/FASTSIM/data/MUONtrackLUT.root"); |
041f7f97 | 152 | else sprintf (filename,"$(ALICE_ROOT)/FASTSIM/data/MUONtrackLUT-AZ.root"); |
d53fc881 | 153 | |
6255180c | 154 | TFile *file = new TFile(filename); |
155 | ReadLUT(file); | |
156 | SetBackground(bkg); | |
d53fc881 | 157 | UseSpline(0); |
6255180c | 158 | } |
159 | ||
160 | ||
161 | void AliMUONFastTracking::ReadLUT(TFile* file) | |
162 | { | |
041f7f97 | 163 | // |
164 | // read the lookup tables from file | |
165 | // | |
6255180c | 166 | TH3F *heff[5][3], *hacc[5][3], *hmeanp, *hsigmap, *hsigma1p, *hchi2p; |
167 | TH3F *hnormg2, *hmeang2, *hsigmag2, *hmeantheta, *hsigmatheta, *hchi2theta; | |
168 | TH3F *hmeanphi, *hsigmaphi, *hchi2phi; | |
169 | char tag[40], tag2[40]; | |
170 | ||
d53fc881 | 171 | printf ("Reading parameters from LUT file %s...\n",file->GetName()); |
172 | ||
041f7f97 | 173 | const Float_t kBkg[4] = {0, 0.5, 1, 2}; |
6255180c | 174 | for (Int_t ibkg=0; ibkg<4; ibkg++) { |
041f7f97 | 175 | sprintf (tag,"BKG%g",kBkg[ibkg]); |
6255180c | 176 | file->cd(tag); |
177 | for (Int_t isplp = 0; isplp<kSplitP; isplp++) { | |
178 | for (Int_t ispltheta = 0; ispltheta<kSplitTheta; ispltheta++) { | |
179 | sprintf (tag2,"heff[%d][%d]",isplp,ispltheta); | |
180 | heff[isplp][ispltheta] = (TH3F*)gDirectory->Get(tag2); | |
181 | sprintf (tag2,"hacc[%d][%d]",isplp,ispltheta); | |
182 | hacc[isplp][ispltheta] = (TH3F*)gDirectory->Get(tag2); | |
183 | } | |
184 | } | |
185 | hmeanp = (TH3F*)gDirectory->Get("hmeanp"); | |
186 | hsigmap = (TH3F*)gDirectory->Get("hsigmap"); | |
187 | hsigma1p = (TH3F*)gDirectory->Get("hsigma1p"); | |
188 | hchi2p = (TH3F*)gDirectory->Get("hchi2p"); | |
189 | hnormg2 = (TH3F*)gDirectory->Get("hnormg2"); | |
190 | hmeang2 = (TH3F*)gDirectory->Get("hmeang2"); | |
191 | hsigmag2 = (TH3F*)gDirectory->Get("hsigmag2"); | |
192 | hmeantheta = (TH3F*)gDirectory->Get("hmeantheta"); | |
193 | hsigmatheta = (TH3F*)gDirectory->Get("hsigmatheta"); | |
194 | hchi2theta = (TH3F*)gDirectory->Get("hchi2theta"); | |
195 | hmeanphi = (TH3F*)gDirectory->Get("hmeanphi"); | |
196 | hsigmaphi = (TH3F*)gDirectory->Get("hsigmaphi"); | |
197 | hchi2phi = (TH3F*)gDirectory->Get("hchi2phi"); | |
198 | ||
6255180c | 199 | for (Int_t ip=0; ip<fNbinp ;ip++) { |
200 | for (Int_t itheta=0; itheta<fNbintheta ;itheta++) { | |
201 | for (Int_t iphi=0; iphi<fNbinphi ;iphi++) { | |
202 | Float_t p = fPmin + fDeltaP * (ip + 0.5); | |
203 | Float_t theta = fThetamin + fDeltaTheta * (itheta + 0.5); | |
204 | Float_t phi = fPhimin + fDeltaPhi * (iphi + 0.5); | |
205 | ||
206 | fEntry[ip][itheta][iphi][ibkg]->fP = p; | |
207 | fEntry[ip][itheta][iphi][ibkg]->fMeanp = | |
208 | hmeanp->GetBinContent(ip+1,itheta+1,iphi+1); | |
209 | fEntry[ip][itheta][iphi][ibkg]->fSigmap = | |
210 | TMath::Abs(hsigmap->GetBinContent(ip+1,itheta+1,iphi+1)); | |
211 | fEntry[ip][itheta][iphi][ibkg]->fSigma1p = | |
212 | hsigma1p->GetBinContent(ip+1,itheta+1,iphi+1); | |
213 | fEntry[ip][itheta][iphi][ibkg]->fChi2p = | |
214 | hchi2p->GetBinContent(ip+1,itheta+1,iphi+1); | |
215 | fEntry[ip][itheta][iphi][ibkg]->fNormG2 = | |
216 | hnormg2->GetBinContent(ip+1,itheta+1,iphi+1); | |
217 | fEntry[ip][itheta][iphi][ibkg]->fMeanG2 = | |
218 | hmeang2->GetBinContent(ip+1,itheta+1,iphi+1); | |
219 | if (ibkg == 0) fEntry[ip][itheta][iphi][ibkg]->fSigmaG2 = 9999; | |
220 | else fEntry[ip][itheta][iphi][ibkg]->fSigmaG2 = | |
221 | hsigmag2->GetBinContent(ip+1,itheta+1,iphi+1); | |
222 | fEntry[ip][itheta][iphi][ibkg]->fTheta = theta; | |
223 | fEntry[ip][itheta][iphi][ibkg]->fMeantheta = | |
224 | hmeantheta->GetBinContent(ip+1,itheta+1,iphi+1); | |
225 | fEntry[ip][itheta][iphi][ibkg]->fSigmatheta = | |
226 | TMath::Abs(hsigmatheta->GetBinContent(ip+1,itheta+1,iphi+1)); | |
227 | fEntry[ip][itheta][iphi][ibkg]->fChi2theta = | |
228 | hchi2theta->GetBinContent(ip+1,itheta+1,iphi+1); | |
229 | fEntry[ip][itheta][iphi][ibkg]->fPhi = phi; | |
230 | fEntry[ip][itheta][iphi][ibkg]->fMeanphi = | |
231 | hmeanphi->GetBinContent(ip+1,itheta+1,iphi+1); | |
232 | fEntry[ip][itheta][iphi][ibkg]->fSigmaphi = | |
233 | TMath::Abs(hsigmaphi->GetBinContent(ip+1,itheta+1,iphi+1)); | |
234 | fEntry[ip][itheta][iphi][ibkg]->fChi2phi = | |
235 | hchi2phi->GetBinContent(ip+1,itheta+1,iphi+1); | |
236 | for (Int_t i=0; i<kSplitP; i++) { | |
237 | for (Int_t j=0; j<kSplitTheta; j++) { | |
238 | fEntry[ip][itheta][iphi][ibkg]->fAcc[i][j] = | |
239 | hacc[i][j]->GetBinContent(ip+1,itheta+1,iphi+1); | |
240 | fEntry[ip][itheta][iphi][ibkg]->fEff[i][j] = | |
241 | heff[i][j]->GetBinContent(ip+1,itheta+1,iphi+1); | |
242 | } | |
243 | } | |
244 | } // iphi | |
245 | } // itheta | |
246 | } // ip | |
247 | } // ibkg | |
248 | ||
249 | TGraph *graph = new TGraph(3); | |
250 | TF1 *f = new TF1("f","[0]+[1]*x"); | |
251 | ||
252 | for (Int_t ip=0; ip< fNbinp; ip++){ | |
253 | for (Int_t itheta=0; itheta< fNbintheta; itheta++){ | |
254 | for (Int_t iphi=0; iphi< fNbinphi; iphi++){ | |
255 | graph->SetPoint(0,0.5,fEntry[ip][itheta][iphi][1]->fSigmaG2); | |
256 | graph->SetPoint(1,1,fEntry[ip][itheta][iphi][2]->fSigmaG2); | |
257 | graph->SetPoint(2,2,fEntry[ip][itheta][iphi][3]->fSigmaG2); | |
258 | graph->Fit("f","q"); | |
259 | fEntry[ip][itheta][iphi][0]->fSigmaG2 = f->Eval(0); | |
260 | } | |
261 | } | |
262 | } | |
263 | f->Delete(); | |
264 | graph->Delete(); | |
265 | printf ("parameters read. \n"); | |
266 | } | |
267 | ||
268 | void AliMUONFastTracking::GetBinning(Int_t &nbinp, Float_t &pmin, Float_t &pmax, | |
269 | Int_t &nbintheta, Float_t &thetamin, | |
270 | Float_t &thetamax, | |
041f7f97 | 271 | Int_t &nbinphi, Float_t &phimin, Float_t &phimax) const |
6255180c | 272 | { |
041f7f97 | 273 | // |
274 | // gets the binning for the discrete parametrizations in the lookup table | |
275 | // | |
6255180c | 276 | nbinp = fNbinp; |
277 | pmin = fPmin; | |
278 | pmax = fPmax; | |
279 | nbintheta = fNbintheta; | |
280 | thetamin = fThetamin; | |
281 | thetamax = fThetamax; | |
282 | nbinphi = fNbinphi; | |
283 | phimin = fPhimin; | |
284 | phimax = fPhimax; | |
285 | } | |
286 | ||
287 | ||
288 | void AliMUONFastTracking::GetIpIthetaIphi(Float_t p, Float_t theta, Float_t phi, | |
289 | Int_t charge, Int_t &ip, Int_t &itheta, | |
041f7f97 | 290 | Int_t &iphi) const |
6255180c | 291 | { |
041f7f97 | 292 | // |
293 | // gets the id of the cells in the LUT for a given (p,theta,phi, charge) | |
294 | // | |
6255180c | 295 | if (charge < 0) phi = -phi; |
296 | ip = Int_t (( p - fPmin ) / fDeltaP); | |
297 | itheta = Int_t (( theta - fThetamin ) / fDeltaTheta); | |
298 | iphi = Int_t (( phi - fPhimin ) / fDeltaPhi); | |
299 | ||
1e68a0c5 | 300 | |
d53fc881 | 301 | if (ip< 0) ip = 0; |
302 | if (ip>= fNbinp) ip = fNbinp-1; | |
303 | if (itheta< 0) itheta = 0; | |
304 | if (itheta>= fNbintheta) itheta = fNbintheta-1; | |
6255180c | 305 | |
d53fc881 | 306 | if (iphi< 0) iphi = 0; |
307 | if (iphi>= fNbinphi) iphi = fNbinphi-1; | |
6255180c | 308 | } |
309 | ||
310 | void AliMUONFastTracking::GetSplit(Int_t ip, Int_t itheta, | |
041f7f97 | 311 | Int_t &nSplitP, Int_t &nSplitTheta) const |
312 | { | |
313 | // | |
314 | // the first cell is splitted in more bins for theta and momentum | |
315 | // parameterizations. Get the number of divisions for the splitted bins | |
316 | // | |
6255180c | 317 | if (ip==0) nSplitP = 5; |
318 | else nSplitP = 2; | |
319 | if (itheta==0) nSplitTheta = 3; | |
320 | else nSplitTheta = 1; | |
321 | } | |
322 | ||
323 | Float_t AliMUONFastTracking::Efficiency(Float_t p, Float_t theta, | |
324 | Float_t phi, Int_t charge){ | |
041f7f97 | 325 | // |
326 | // gets the tracking efficiency | |
327 | // | |
6255180c | 328 | Int_t ip=0, itheta=0, iphi=0; |
329 | GetIpIthetaIphi(p,theta,phi,charge,ip,itheta,iphi); | |
330 | Int_t nSplitP, nSplitTheta; | |
331 | GetSplit(ip,itheta,nSplitP,nSplitTheta); | |
332 | ||
333 | Float_t dp = p - fPmin; | |
334 | Int_t ibinp = Int_t(nSplitP*(dp - fDeltaP * Int_t(dp / fDeltaP))/fDeltaP); | |
335 | Float_t dtheta = theta - fThetamin; | |
336 | Int_t ibintheta = Int_t(nSplitTheta*(dtheta - fDeltaTheta * Int_t(dtheta / fDeltaTheta))/fDeltaTheta); | |
337 | Float_t eff = fCurrentEntry[ip][itheta][iphi]->fEff[ibinp][ibintheta]; | |
338 | return eff; | |
339 | } | |
340 | ||
341 | Float_t AliMUONFastTracking::Acceptance(Float_t p, Float_t theta, | |
342 | Float_t phi, Int_t charge){ | |
041f7f97 | 343 | // |
344 | // gets the geometrical acceptance | |
345 | // | |
6255180c | 346 | if (theta<fThetamin || theta>fThetamax) return 0; |
347 | ||
348 | Int_t ip=0, itheta=0, iphi=0; | |
349 | GetIpIthetaIphi(p,theta,phi,charge,ip,itheta,iphi); | |
350 | Int_t nSplitP, nSplitTheta; | |
351 | GetSplit(ip,itheta,nSplitP,nSplitTheta); | |
352 | // central value and corrections with spline | |
353 | ||
354 | Float_t dp = p - fPmin; | |
355 | Int_t ibinp = Int_t(nSplitP*(dp - fDeltaP * Int_t(dp / fDeltaP))/fDeltaP); | |
356 | Float_t dtheta = theta - fThetamin; | |
357 | Int_t ibintheta = Int_t(nSplitTheta*(dtheta - fDeltaTheta * Int_t(dtheta / fDeltaTheta))/fDeltaTheta); | |
358 | Float_t acc = fCurrentEntry[ip][itheta][iphi]->fAcc[ibinp][ibintheta]; | |
359 | return acc; | |
360 | } | |
361 | ||
362 | Float_t AliMUONFastTracking::MeanP(Float_t p, Float_t theta, | |
041f7f97 | 363 | Float_t phi, Int_t charge) const |
6255180c | 364 | { |
041f7f97 | 365 | // |
366 | // gets the mean value of the prec-pgen distribution | |
367 | // | |
6255180c | 368 | Int_t ip=0, itheta=0, iphi=0; |
369 | GetIpIthetaIphi(p,theta,phi,charge,ip,itheta,iphi); | |
370 | return fCurrentEntry[ip][itheta][iphi]->fMeanp; | |
371 | } | |
372 | ||
373 | Float_t AliMUONFastTracking::SigmaP(Float_t p, Float_t theta, | |
041f7f97 | 374 | Float_t phi, Int_t charge) const |
6255180c | 375 | { |
041f7f97 | 376 | // |
377 | // gets the width of the prec-pgen distribution | |
378 | // | |
6255180c | 379 | Int_t ip=0, itheta=0, iphi=0; |
380 | Int_t index; | |
381 | GetIpIthetaIphi(p,theta,phi,charge,ip,itheta,iphi); | |
382 | // central value and corrections with spline | |
383 | Float_t sigmap = fCurrentEntry[ip][itheta][iphi]->fSigmap; | |
384 | if (!fSpline) return sigmap; | |
385 | // corrections vs p, theta, phi | |
386 | index = iphi + fNbinphi * itheta; | |
387 | Double_t xmin,ymin,xmax,ymax; | |
388 | Float_t frac1 = fSplineSigmap[index][0]->Eval(p)/sigmap; | |
389 | ||
390 | if (p>fPmax-fDeltaP/2.) { | |
391 | Float_t s1 = fCurrentEntry[fNbinp-1][itheta][iphi]->fSigmap; | |
392 | Float_t s2 = fCurrentEntry[fNbinp-2][itheta][iphi]->fSigmap; | |
393 | Float_t s3 = fCurrentEntry[fNbinp-3][itheta][iphi]->fSigmap; | |
394 | Float_t p1 = fDeltaP * (fNbinp - 1 + 0.5) + fPmin; | |
395 | Float_t p2 = fDeltaP * (fNbinp - 2 + 0.5) + fPmin; | |
396 | Float_t p3 = fDeltaP * (fNbinp - 3 + 0.5) + fPmin; | |
397 | Float_t p12 = p1 * p1, p22 = p2 * p2, p32 = p3 * p3; | |
398 | Float_t d = p12*p2 + p1*p32 + p22*p3 - p32*p2 - p3*p12 - p22*p1; | |
399 | Float_t a = (s1*p2 + p1*s3 + s2*p3 - s3*p2 - p3*s1 - s2*p1) / d; | |
400 | Float_t b = (p12*s2 + s1*p32 + p22*s3 - p32*s2 - s3*p12 - p22*s1)/d; | |
401 | Float_t c = (p12*p2*s3 + p1*p32*s2 + p22*p3*s1 | |
402 | - p32*p2*s1 - p3*p12*s2 - p22*p1*s3) / d; | |
403 | Float_t sigma = a * p * p + b * p + c; | |
404 | frac1 = sigma/sigmap; | |
405 | } | |
406 | index = iphi + fNbinphi * ip; | |
407 | fSplineEff[index][1]->GetKnot(0,xmin,ymin); | |
408 | fSplineEff[index][1]->GetKnot(9,xmax,ymax); | |
409 | if (theta>xmax) theta = xmax; | |
410 | Float_t frac2 = fSplineSigmap[index][1]->Eval(theta)/sigmap; | |
411 | index = itheta + fNbintheta * ip; | |
412 | fSplineEff[index][2]->GetKnot(0,xmin,ymin); | |
413 | fSplineEff[index][2]->GetKnot(9,xmax,ymax); | |
414 | if (phi>xmax) phi = xmax; | |
415 | Float_t frac3 = fSplineSigmap[index][2]->Eval(phi)/sigmap; | |
416 | Float_t sigmatot = sigmap * frac1 * frac2 * frac3; | |
417 | if (sigmatot<0) sigmatot = sigmap; | |
418 | return sigmatot; | |
419 | } | |
420 | ||
421 | Float_t AliMUONFastTracking::Sigma1P(Float_t p, Float_t theta, | |
041f7f97 | 422 | Float_t phi, Int_t charge) const |
6255180c | 423 | { |
041f7f97 | 424 | // |
425 | // gets the width correction of the prec-pgen distribution (see FitP) | |
426 | // | |
6255180c | 427 | Int_t ip=0, itheta=0, iphi=0; |
428 | GetIpIthetaIphi(p,theta,phi,charge,ip,itheta,iphi); | |
429 | if (p>fPmax) { | |
430 | // linear extrapolation of sigmap for p out of range | |
431 | Float_t s1 = fCurrentEntry[fNbinp-1][itheta][iphi]->fSigma1p; | |
432 | Float_t s2 = fCurrentEntry[fNbinp-2][itheta][iphi]->fSigma1p; | |
433 | Float_t p1 = fDeltaP * (fNbinp - 1 + 0.5) + fPmin; | |
434 | Float_t p2 = fDeltaP * (fNbinp - 2 + 0.5) + fPmin; | |
435 | Float_t sigma = 1./(p1-p2) * ( (s1-s2)*p + (s2-s1)*p1 + s1*(p1-p2) ); | |
436 | return sigma; | |
437 | } | |
438 | else return fCurrentEntry[ip][itheta][iphi]->fSigma1p; | |
439 | } | |
440 | ||
441 | Float_t AliMUONFastTracking::NormG2(Float_t p, Float_t theta, | |
041f7f97 | 442 | Float_t phi, Int_t charge) const |
6255180c | 443 | { |
041f7f97 | 444 | // |
445 | // gets the relative normalization of the background | |
446 | // (gaussian) component in the prec-pgen distribution | |
447 | // | |
6255180c | 448 | Int_t ip=0, itheta=0, iphi=0; |
449 | GetIpIthetaIphi(p,theta,phi,charge,ip,itheta,iphi); | |
450 | if (p>fPmax) { | |
451 | // linear extrapolation of sigmap for p out of range | |
452 | Float_t s1 = fCurrentEntry[fNbinp-1][itheta][iphi]->fNormG2; | |
453 | Float_t s2 = fCurrentEntry[fNbinp-2][itheta][iphi]->fNormG2; | |
454 | Float_t p1 = fDeltaP * (fNbinp - 1 + 0.5) + fPmin; | |
455 | Float_t p2 = fDeltaP * (fNbinp - 2 + 0.5) + fPmin; | |
456 | Float_t norm = 1./(p1-p2) * ( (s1-s2)*p + (s2-s1)*p1 + s1*(p1-p2) ); | |
457 | return norm; | |
458 | } | |
459 | else return fCurrentEntry[ip][itheta][iphi]->fNormG2; | |
460 | } | |
461 | ||
462 | Float_t AliMUONFastTracking::MeanG2(Float_t p, Float_t theta, | |
041f7f97 | 463 | Float_t phi, Int_t charge) const |
6255180c | 464 | { |
041f7f97 | 465 | // |
466 | // gets the mean value of the background | |
467 | // (gaussian) component in the prec-pgen distribution | |
468 | // | |
6255180c | 469 | Int_t ip=0, itheta=0, iphi=0; |
470 | GetIpIthetaIphi(p,theta,phi,charge,ip,itheta,iphi); | |
471 | if (p>fPmax) { | |
472 | // linear extrapolation of sigmap for p out of range | |
473 | Float_t s1 = fCurrentEntry[fNbinp-1][itheta][iphi]->fMeanG2; | |
474 | Float_t s2 = fCurrentEntry[fNbinp-2][itheta][iphi]->fMeanG2; | |
475 | Float_t p1 = fDeltaP * (fNbinp - 1 + 0.5) + fPmin; | |
476 | Float_t p2 = fDeltaP * (fNbinp - 2 + 0.5) + fPmin; | |
477 | Float_t norm = 1./(p1-p2) * ( (s1-s2)*p + (s2-s1)*p1 + s1*(p1-p2) ); | |
478 | return norm; | |
479 | } | |
480 | else return fCurrentEntry[ip][itheta][iphi]->fMeanG2; | |
481 | } | |
482 | ||
483 | Float_t AliMUONFastTracking::SigmaG2(Float_t p, Float_t theta, | |
041f7f97 | 484 | Float_t phi, Int_t charge) const |
6255180c | 485 | { |
041f7f97 | 486 | // |
487 | // gets the width of the background | |
488 | // (gaussian) component in the prec-pgen distribution | |
489 | // | |
6255180c | 490 | Int_t ip=0, itheta=0, iphi=0; |
491 | GetIpIthetaIphi(p,theta,phi,charge,ip,itheta,iphi); | |
492 | if (p>fPmax) { | |
493 | // linear extrapolation of sigmap for p out of range | |
494 | Float_t s1 = fCurrentEntry[fNbinp-1][itheta][iphi]->fSigmaG2; | |
495 | Float_t s2 = fCurrentEntry[fNbinp-2][itheta][iphi]->fSigmaG2; | |
496 | Float_t p1 = fDeltaP * (fNbinp - 1 + 0.5) + fPmin; | |
497 | Float_t p2 = fDeltaP * (fNbinp - 2 + 0.5) + fPmin; | |
498 | Float_t sigma = 1./(p1-p2) * ( (s1-s2)*p + (s2-s1)*p1 + s1*(p1-p2) ); | |
499 | return sigma; | |
500 | } | |
501 | else return fCurrentEntry[ip][itheta][iphi]->fSigmaG2; | |
502 | } | |
503 | ||
504 | ||
505 | Float_t AliMUONFastTracking::MeanTheta(Float_t p, Float_t theta, | |
041f7f97 | 506 | Float_t phi, Int_t charge) const |
6255180c | 507 | { |
041f7f97 | 508 | // |
509 | // gets the mean value of the thetarec-thetagen distribution | |
510 | // | |
6255180c | 511 | Int_t ip=0, itheta=0, iphi=0; |
512 | GetIpIthetaIphi(p,theta,phi,charge,ip,itheta,iphi); | |
513 | return fCurrentEntry[ip][itheta][iphi]->fMeantheta; | |
514 | } | |
515 | ||
041f7f97 | 516 | Float_t AliMUONFastTracking::SigmaTheta(Float_t p, Float_t theta, |
517 | Float_t phi, Int_t charge) const | |
518 | { | |
519 | // | |
520 | // gets the width of the thetarec-thetagen distribution | |
521 | // | |
6255180c | 522 | Int_t ip=0, itheta=0, iphi=0; |
523 | Int_t index; | |
524 | GetIpIthetaIphi(p,theta,phi,charge,ip,itheta,iphi); | |
525 | // central value and corrections with spline | |
526 | Float_t sigmatheta = fCurrentEntry[ip][itheta][iphi]->fSigmatheta; | |
527 | if (!fSpline) return sigmatheta; | |
528 | // corrections vs p, theta, phi | |
529 | index = iphi + fNbinphi * itheta; | |
530 | Double_t xmin,ymin,xmax,ymax; | |
531 | Float_t frac1 = fSplineSigmatheta[index][0]->Eval(p)/sigmatheta; | |
532 | if (p>fPmax-fDeltaP/2.) { | |
533 | // linear extrapolation of sigmap for p out of range | |
534 | Float_t s1 = fCurrentEntry[fNbinp-1][itheta][iphi]->fSigmatheta; | |
535 | Float_t s2 = fCurrentEntry[fNbinp-2][itheta][iphi]->fSigmatheta; | |
536 | Float_t p1 = fDeltaP * (fNbinp - 1 + 0.5) + fPmin; | |
537 | Float_t p2 = fDeltaP * (fNbinp - 2 + 0.5) + fPmin; | |
538 | Float_t sigma = 1./(p1-p2) * ( (s1-s2)*p + (s2-s1)*p1 + s1*(p1-p2) ); | |
539 | frac1=sigma/sigmatheta; | |
540 | } | |
541 | index = iphi + fNbinphi * ip; | |
542 | fSplineEff[index][1]->GetKnot(0,xmin,ymin); | |
543 | fSplineEff[index][1]->GetKnot(9,xmax,ymax); | |
544 | if (theta>xmax) theta = xmax; | |
545 | Float_t frac2 = fSplineSigmatheta[index][1]->Eval(theta)/sigmatheta; | |
546 | index = itheta + fNbintheta * ip; | |
547 | fSplineEff[index][2]->GetKnot(0,xmin,ymin); | |
548 | fSplineEff[index][2]->GetKnot(9,xmax,ymax); | |
549 | if (phi>xmax) phi = xmax; | |
550 | Float_t frac3 = fSplineSigmatheta[index][2]->Eval(phi)/sigmatheta; | |
551 | return sigmatheta * frac1 * frac2 * frac3; | |
552 | } | |
553 | ||
554 | ||
555 | Float_t AliMUONFastTracking::MeanPhi(Float_t p, Float_t theta, | |
041f7f97 | 556 | Float_t phi, Int_t charge) const |
557 | { | |
558 | // | |
559 | // gets the mean value of the phirec-phigen distribution | |
560 | // | |
6255180c | 561 | Int_t ip=0, itheta=0, iphi=0; |
562 | GetIpIthetaIphi(p,theta,phi,charge,ip,itheta,iphi); | |
563 | return fCurrentEntry[ip][itheta][iphi]->fMeanphi; | |
564 | } | |
565 | ||
566 | Float_t AliMUONFastTracking::SigmaPhi(Float_t p, Float_t theta, | |
567 | Float_t phi, Int_t charge){ | |
041f7f97 | 568 | // |
569 | // gets the width of the phirec-phigen distribution | |
570 | // | |
6255180c | 571 | Int_t ip=0, itheta=0, iphi=0; |
572 | Int_t index; | |
573 | GetIpIthetaIphi(p,theta,phi,charge,ip,itheta,iphi); | |
574 | // central value and corrections with spline | |
575 | Float_t sigmaphi = fCurrentEntry[ip][itheta][iphi]->fSigmaphi; | |
576 | if (!fSpline) return sigmaphi; | |
577 | // corrections vs p, theta, phi | |
578 | index = iphi + fNbinphi * itheta; | |
579 | Float_t frac1 = fSplineSigmaphi[index][0]->Eval(p)/sigmaphi; | |
580 | Double_t xmin,ymin,xmax,ymax; | |
581 | if (p>fPmax-fDeltaP/2.) { | |
582 | Float_t s1 = fCurrentEntry[fNbinp-1][itheta][iphi]->fSigmaphi; | |
583 | Float_t s2 = fCurrentEntry[fNbinp-2][itheta][iphi]->fSigmaphi; | |
584 | Float_t p1 = fDeltaP * (fNbinp - 1 + 0.5) + fPmin; | |
585 | Float_t p2 = fDeltaP * (fNbinp - 2 + 0.5) + fPmin; | |
586 | Float_t sigma = 1./(p1-p2) * ( (s1-s2)*p + (s2-s1)*p1 + s1*(p1-p2) ); | |
587 | frac1 = sigma/sigmaphi; | |
588 | } | |
589 | ||
590 | index = iphi + fNbinphi * ip; | |
591 | fSplineEff[index][1]->GetKnot(0,xmin,ymin); | |
592 | fSplineEff[index][1]->GetKnot(9,xmax,ymax); | |
593 | if (theta>xmax) theta = xmax; | |
594 | Float_t frac2 = fSplineSigmaphi[index][1]->Eval(theta)/sigmaphi; | |
595 | index = itheta + fNbintheta * ip; | |
596 | fSplineEff[index][2]->GetKnot(0,xmin,ymin); | |
597 | fSplineEff[index][2]->GetKnot(9,xmax,ymax); | |
598 | if (phi>xmax) phi = xmax; | |
599 | Float_t frac3 = fSplineSigmaphi[index][2]->Eval(phi)/sigmaphi; | |
600 | return sigmaphi * frac1 * frac2 * frac3; | |
601 | } | |
602 | ||
603 | void AliMUONFastTracking::SetSpline(){ | |
041f7f97 | 604 | // |
605 | // sets the spline functions for a smooth behaviour of the parameters | |
606 | // when going from one cell to another | |
607 | // | |
6255180c | 608 | printf ("Setting spline functions..."); |
609 | char splname[40]; | |
610 | Double_t x[20][3]; | |
611 | Double_t x2[50][3]; | |
612 | Int_t nbins[3] = {fNbinp, fNbintheta, fNbinphi}; | |
613 | Double_t xspl[20],yeff[50],ysigmap[20],ysigma1p[20]; | |
614 | Double_t yacc[50], ysigmatheta[20],ysigmaphi[20]; | |
615 | Double_t xsp2[50]; | |
616 | // let's calculate the x axis for p, theta, phi | |
617 | ||
618 | Int_t i, ispline, ivar; | |
619 | for (i=0; i< fNbinp; i++) x[i][0] = fPmin + fDeltaP * (i + 0.5); | |
620 | for (i=0; i< fNbintheta; i++) x[i][1] = fThetamin + fDeltaTheta * (i + 0.5); | |
621 | for (i=0; i< fNbinphi; i++) x[i][2] = fPhimin + fDeltaPhi * (i + 0.5); | |
622 | ||
623 | for (i=0; i< 5 * fNbinp; i++) x2[i][0] = fPmin + fDeltaP * (i + 0.5)/5.; | |
624 | for (i=0; i< 5 * fNbintheta; i++) x2[i][1] = fThetamin + fDeltaTheta * (i + 0.5)/5.; | |
625 | for (i=0; i< 5 * fNbinphi; i++) x2[i][2] = fPhimin + fDeltaPhi * (i + 0.5)/5.; | |
626 | ||
627 | // splines in p | |
628 | ivar = 0; | |
629 | for (i=0; i<nbins[ivar]; i++) xspl[i] = x[i][ivar]; | |
630 | for (i=0; i<5 * nbins[ivar]; i++) xsp2[i] = x2[i][ivar]; | |
631 | ispline=0; | |
632 | for (Int_t itheta=0; itheta< fNbintheta; itheta++){ | |
633 | for (Int_t iphi=0; iphi< fNbinphi; iphi++){ | |
634 | for (Int_t ip=0; ip<fNbinp; ip++) { | |
635 | // for (Int_t i=0; i<5; i++) { | |
636 | // yeff[5 * ip + i] = fCurrentEntry[ip][itheta][iphi]->fEff[i]; | |
637 | // yacc[5 * ip + i] = fCurrentEntry[ip][itheta][iphi]->fAcc[i]; | |
638 | // } | |
639 | ysigmap[ip] = fCurrentEntry[ip][itheta][iphi]->fSigmap; | |
640 | ysigma1p[ip] = fCurrentEntry[ip][itheta][iphi]->fSigma1p; | |
641 | ysigmatheta[ip] = fCurrentEntry[ip][itheta][iphi]->fSigmatheta; | |
642 | ysigmaphi[ip] = fCurrentEntry[ip][itheta][iphi]->fSigmaphi; | |
643 | } | |
644 | if (fPrintLevel>3) cout << " creating new spline " << splname << endl; | |
645 | sprintf (splname,"fSplineEff[%d][%d]",ispline,ivar); | |
646 | fSplineEff[ispline][ivar] = new TSpline3(splname,xsp2,yeff,5 * nbins[ivar]); | |
647 | sprintf (splname,"fSplineAcc[%d][%d]",ispline,ivar); | |
648 | fSplineAcc[ispline][ivar] = new TSpline3(splname,xsp2,yacc,5 * nbins[ivar]); | |
649 | sprintf (splname,"fSplineSigmap[%d][%d]",ispline,ivar); | |
650 | fSplineSigmap[ispline][ivar] = new TSpline3(splname,xspl,ysigmap,nbins[ivar]); | |
651 | sprintf (splname,"fSplineSigma1p[%d][%d]",ispline,ivar); | |
652 | fSplineSigma1p[ispline][ivar] = new TSpline3(splname,xspl,ysigma1p,nbins[ivar]); | |
653 | sprintf (splname,"fSplineSigmatheta[%d][%d]",ispline,ivar); | |
654 | fSplineSigmatheta[ispline][ivar] = new TSpline3(splname,xspl,ysigmatheta,nbins[ivar]); | |
655 | sprintf (splname,"fSplineSigmaphi[%d][%d]",ispline,ivar); | |
656 | fSplineSigmaphi[ispline][ivar] = new TSpline3(splname,xspl,ysigmaphi,nbins[ivar]); | |
657 | ispline++; | |
658 | } | |
659 | } | |
660 | ||
661 | ivar = 1; | |
662 | for (i=0; i<nbins[ivar]; i++) xspl[i] = x[i][ivar]; | |
663 | ispline=0; | |
664 | for (Int_t ip=0; ip<fNbinp; ip++) { | |
665 | for (Int_t iphi=0; iphi< fNbinphi; iphi++){ | |
666 | for (Int_t itheta=0; itheta< fNbintheta; itheta++){ | |
667 | // for efficiency and acceptance let's take the central value | |
668 | // yeff[itheta] = fCurrentEntry[ip][itheta][iphi]->fEff[2]; | |
669 | // yacc[itheta] = fCurrentEntry[ip][itheta][iphi]->fAcc[2]; | |
670 | ysigmap[itheta] = fCurrentEntry[ip][itheta][iphi]->fSigmap; | |
671 | ysigma1p[itheta] = fCurrentEntry[ip][itheta][iphi]->fSigma1p; | |
672 | ysigmatheta[itheta] = fCurrentEntry[ip][itheta][iphi]->fSigmatheta; | |
673 | ysigmaphi[itheta] = fCurrentEntry[ip][itheta][iphi]->fSigmaphi; | |
674 | } | |
675 | if (fPrintLevel>3) cout << " creating new spline " << splname << endl; | |
676 | sprintf (splname,"fSplineEff[%d][%d]",ispline,ivar); | |
677 | fSplineEff[ispline][ivar] = new TSpline3(splname,xspl,yeff, nbins[ivar]); | |
678 | sprintf (splname,"fSplineAcc[%d][%d]",ispline,ivar); | |
679 | fSplineAcc[ispline][ivar] = new TSpline3(splname,xspl,yacc, nbins[ivar]); | |
680 | sprintf (splname,"fSplineSigmap[%d][%d]",ispline,ivar); | |
681 | fSplineSigmap[ispline][ivar] = new TSpline3(splname,xspl,ysigmap,nbins[ivar]); | |
682 | sprintf (splname,"fSplineSigma1p[%d][%d]",ispline,ivar); | |
683 | fSplineSigma1p[ispline][ivar] = new TSpline3(splname,xspl,ysigma1p,nbins[ivar]); | |
684 | sprintf (splname,"fSplineSigmatheta[%d][%d]",ispline,ivar); | |
685 | fSplineSigmatheta[ispline][ivar] = new TSpline3(splname,xspl,ysigmatheta,nbins[ivar]); | |
686 | sprintf (splname,"fSplineSigmaphi[%d][%d]",ispline,ivar); | |
687 | fSplineSigmaphi[ispline][ivar] = new TSpline3(splname,xspl,ysigmaphi,nbins[ivar]); | |
688 | ispline++; | |
689 | } | |
690 | } | |
691 | ||
692 | ivar = 2; | |
693 | for (i=0; i<nbins[ivar]; i++) xspl[i] = x[i][ivar]; | |
694 | ispline=0; | |
695 | for (Int_t ip=0; ip<fNbinp; ip++) { | |
696 | for (Int_t itheta=0; itheta< fNbintheta; itheta++){ | |
697 | for (Int_t iphi=0; iphi< fNbinphi; iphi++){ | |
698 | // for efficiency and acceptance let's take the central value | |
699 | // yeff[iphi] = fCurrentEntry[ip][itheta][iphi]->fEff[2]; | |
700 | // yacc[iphi] = fCurrentEntry[ip][itheta][iphi]->fAcc[2]; | |
701 | ysigmap[iphi] = fCurrentEntry[ip][itheta][iphi]->fSigmap; | |
702 | ysigma1p[iphi] = fCurrentEntry[ip][itheta][iphi]->fSigma1p; | |
703 | ysigmatheta[iphi] = fCurrentEntry[ip][itheta][iphi]->fSigmatheta; | |
704 | ysigmaphi[iphi] = fCurrentEntry[ip][itheta][iphi]->fSigmaphi; | |
705 | } | |
706 | if (fPrintLevel>3) cout << " creating new spline " << splname << endl; | |
707 | sprintf (splname,"fSplineEff[%d][%d]",ispline,ivar); | |
708 | fSplineEff[ispline][ivar] = new TSpline3(splname,xspl,yeff, nbins[ivar]); | |
709 | sprintf (splname,"fSplineAcc[%d][%d]",ispline,ivar); | |
710 | fSplineAcc[ispline][ivar] = new TSpline3(splname,xspl,yacc, nbins[ivar]); | |
711 | sprintf (splname,"fSplineSigmap[%d][%d]",ispline,ivar); | |
712 | fSplineSigmap[ispline][ivar] = new TSpline3(splname,xspl,ysigmap,nbins[ivar]); | |
713 | sprintf (splname,"fSplineSigma1p[%d][%d]",ispline,ivar); | |
714 | fSplineSigma1p[ispline][ivar] = new TSpline3(splname,xspl,ysigma1p,nbins[ivar]); | |
715 | sprintf (splname,"fSplineSigmatheta[%d][%d]",ispline,ivar); | |
716 | fSplineSigmatheta[ispline][ivar] = new TSpline3(splname,xspl,ysigmatheta,nbins[ivar]); | |
717 | sprintf (splname,"fSplineSigmaphi[%d][%d]",ispline,ivar); | |
718 | fSplineSigmaphi[ispline][ivar] = new TSpline3(splname,xspl,ysigmaphi,nbins[ivar]); | |
719 | ispline++; | |
720 | } | |
721 | } | |
722 | printf ("...done\n"); | |
723 | } | |
724 | ||
6255180c | 725 | void AliMUONFastTracking::SetBackground(Float_t bkg){ |
041f7f97 | 726 | // |
6255180c | 727 | // linear interpolation of the parameters in the LUT between 2 values where |
728 | // the background has been actually calculated | |
041f7f97 | 729 | // |
6255180c | 730 | if (bkg>2) printf ("WARNING: unsafe extrapolation!\n"); |
731 | fBkg = bkg; | |
732 | ||
041f7f97 | 733 | Float_t bkgLevel[4] = {0, 0.5, 1, 2}; // bkg values for which LUT is calculated |
6255180c | 734 | Int_t ibkg; |
041f7f97 | 735 | for (ibkg=0; ibkg<4; ibkg++) if ( bkg < bkgLevel[ibkg]) break; |
6255180c | 736 | if (ibkg == 4) ibkg--; |
737 | if (ibkg == 0) ibkg++; | |
738 | ||
041f7f97 | 739 | Float_t x0 = bkgLevel[ibkg-1]; |
740 | Float_t x1 = bkgLevel[ibkg]; | |
6255180c | 741 | Float_t x = (bkg - x0) / (x1 - x0); |
742 | ||
743 | Float_t y0, y1; | |
744 | ||
745 | for (Int_t ip=0; ip< fNbinp; ip++){ | |
746 | for (Int_t itheta=0; itheta< fNbintheta; itheta++){ | |
747 | for (Int_t iphi=0; iphi< fNbinphi; iphi++){ | |
748 | fCurrentEntry[ip][itheta][iphi]->fP = fEntry[ip][itheta][iphi][ibkg]->fP; | |
749 | fCurrentEntry[ip][itheta][iphi]->fTheta = fEntry[ip][itheta][iphi][ibkg]->fTheta; | |
750 | fCurrentEntry[ip][itheta][iphi]->fPhi = fEntry[ip][itheta][iphi][ibkg]->fPhi; | |
751 | fCurrentEntry[ip][itheta][iphi]->fChi2p = -1; | |
752 | fCurrentEntry[ip][itheta][iphi]->fChi2theta = -1; | |
753 | fCurrentEntry[ip][itheta][iphi]->fChi2phi = -1; | |
754 | ||
755 | y0 = fEntry[ip][itheta][iphi][ibkg-1]->fMeanp; | |
756 | y1 = fEntry[ip][itheta][iphi][ibkg]->fMeanp; | |
757 | fCurrentEntry[ip][itheta][iphi] ->fMeanp = (y1 - y0) * x + y0; | |
758 | y0 = fEntry[ip][itheta][iphi][ibkg-1]->fMeantheta; | |
759 | y1 = fEntry[ip][itheta][iphi][ibkg]->fMeantheta; | |
760 | fCurrentEntry[ip][itheta][iphi] ->fMeantheta = (y1 - y0) * x + y0; | |
761 | y0 = fEntry[ip][itheta][iphi][ibkg-1]->fMeanphi; | |
762 | y1 = fEntry[ip][itheta][iphi][ibkg]->fMeanphi; | |
763 | fCurrentEntry[ip][itheta][iphi] ->fMeanphi = (y1 - y0) * x + y0; | |
764 | y0 = fEntry[ip][itheta][iphi][ibkg-1]->fSigmap; | |
765 | y1 = fEntry[ip][itheta][iphi][ibkg]->fSigmap; | |
766 | fCurrentEntry[ip][itheta][iphi] ->fSigmap = (y1 - y0) * x + y0; | |
767 | y0 = fEntry[ip][itheta][iphi][ibkg-1]->fSigmatheta; | |
768 | y1 = fEntry[ip][itheta][iphi][ibkg]->fSigmatheta; | |
769 | fCurrentEntry[ip][itheta][iphi] ->fSigmatheta = (y1 - y0) * x + y0; | |
770 | y0 = fEntry[ip][itheta][iphi][ibkg-1]->fSigmaphi; | |
771 | y1 = fEntry[ip][itheta][iphi][ibkg]->fSigmaphi; | |
772 | fCurrentEntry[ip][itheta][iphi] ->fSigmaphi = (y1 - y0) * x + y0; | |
773 | y0 = fEntry[ip][itheta][iphi][ibkg-1]->fSigma1p; | |
774 | y1 = fEntry[ip][itheta][iphi][ibkg]->fSigma1p; | |
775 | fCurrentEntry[ip][itheta][iphi] ->fSigma1p = (y1 - y0) * x + y0; | |
776 | y0 = fEntry[ip][itheta][iphi][ibkg-1]->fNormG2; | |
777 | y1 = fEntry[ip][itheta][iphi][ibkg]->fNormG2; | |
778 | fCurrentEntry[ip][itheta][iphi] ->fNormG2 = (y1 - y0) * x + y0; | |
779 | y0 = fEntry[ip][itheta][iphi][ibkg-1]->fMeanG2; | |
780 | y1 = fEntry[ip][itheta][iphi][ibkg]->fMeanG2; | |
781 | fCurrentEntry[ip][itheta][iphi] ->fMeanG2 = (y1 - y0) * x + y0; | |
782 | ||
783 | y0 = fEntry[ip][itheta][iphi][ibkg-1]->fSigmaG2; | |
784 | y1 = fEntry[ip][itheta][iphi][ibkg]->fSigmaG2; | |
785 | fCurrentEntry[ip][itheta][iphi] ->fSigmaG2 = (y1 - y0) * x + y0; | |
786 | for (Int_t i=0; i<kSplitP; i++) { | |
787 | for (Int_t j=0; j<kSplitTheta; j++) { | |
788 | fCurrentEntry[ip][itheta][iphi]->fAcc[i][j] = fEntry[ip][itheta][iphi][ibkg]->fAcc[i][j]; | |
789 | y0 = fEntry[ip][itheta][iphi][ibkg-1]->fEff[i][j]; | |
790 | y1 = fEntry[ip][itheta][iphi][ibkg]->fEff[i][j]; | |
791 | fCurrentEntry[ip][itheta][iphi]->fEff[i][j] = (y1 - y0) * x + y0; | |
792 | } | |
793 | } | |
794 | } | |
795 | } | |
796 | } | |
797 | SetSpline(); | |
798 | } | |
799 | ||
d53fc881 | 800 | TF1* AliMUONFastTracking::GetFitP(Int_t ip,Int_t itheta,Int_t iphi) { |
041f7f97 | 801 | // gets the correct prec-pgen distribution for a given LUT cell |
d53fc881 | 802 | if (!fFitp[ip][itheta][iphi]) { |
803 | fFitp[ip][itheta][iphi] = new TF1("fit1",FitP,-20.,20.,6); | |
804 | fFitp[ip][itheta][iphi]->SetNpx(500); | |
1e68a0c5 | 805 | fFitp[ip][itheta][iphi]->SetParameters(0.,0.,0.,0.,0.,0.); |
d53fc881 | 806 | } |
807 | return fFitp[ip][itheta][iphi]; | |
808 | } | |
6255180c | 809 | |
041f7f97 | 810 | AliMUONFastTracking& AliMUONFastTracking::operator=(const AliMUONFastTracking& rhs) |
811 | { | |
812 | // Assignment operator | |
813 | rhs.Copy(*this); | |
814 | return *this; | |
815 | } | |
816 | ||
817 | void AliMUONFastTracking::Copy(AliMUONFastTracking&) const | |
818 | { | |
819 | // | |
820 | // Copy | |
821 | // | |
822 | Fatal("Copy","Not implemented!\n"); | |
823 | } | |
6255180c | 824 | |
825 | ||
826 | ||
827 | ||
828 | ||
829 | ||
830 | ||
831 |