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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 | ||
9edefa04 | 16 | /* $Id$ */ |
6255180c | 17 | |
041f7f97 | 18 | //------------------------------------------------------------------------- |
19 | // Class AliMUONFastTracking | |
20 | // | |
21 | // Manager for the fast simulation of tracking in the muon spectrometer | |
22 | // This class reads the lookup tables containing the parameterization | |
23 | // of the deltap, deltatheta, deltaphi for different background levels | |
24 | // and provides the related smeared parameters. | |
25 | // Used by AliFastMuonTrackingEff, AliFastMuonTrackingAcc, | |
26 | // AliFastMuonTrackingRes. | |
27 | //------------------------------------------------------------------------- | |
28 | ||
6255180c | 29 | #include <stdio.h> |
9edefa04 | 30 | #include <stdlib.h> |
6255180c | 31 | #include <string.h> |
9edefa04 | 32 | |
6255180c | 33 | #include <Riostream.h> |
9edefa04 | 34 | #include <TF1.h> |
35 | #include <TFile.h> | |
36 | #include <TH3.h> | |
37 | #include <TMath.h> | |
38 | #include <TRandom.h> | |
39 | #include <TSpline.h> | |
40 | ||
41 | #include "AliMUONFastTracking.h" | |
42 | #include "AliMUONFastTrackingEntry.h" | |
6255180c | 43 | |
44 | ClassImp(AliMUONFastTracking) | |
45 | ||
041f7f97 | 46 | |
6255180c | 47 | AliMUONFastTracking* AliMUONFastTracking::fgMUONFastTracking=NULL; |
48 | ||
49 | static Double_t FitP(Double_t *x, Double_t *par){ | |
50 | Double_t dx = x[0] - par[0]; | |
51 | Double_t dx2 = x[0] - par[4]; | |
52 | Double_t sigma = par[1] * ( 1 + par[2] * dx); | |
53 | if (sigma == 0) { | |
54 | ||
55 | return 0.; | |
56 | } | |
57 | Double_t fasymm = TMath::Exp(-0.5 * dx * dx / (sigma * sigma)); | |
58 | Double_t sigma2 = par[1] * par[5]; | |
59 | Double_t fgauss = TMath::Exp(-0.5 * dx2 * dx2 / (sigma2 * sigma2)); | |
d53fc881 | 60 | Double_t value = fasymm + par[3] * fgauss; |
9a226b7e | 61 | return TMath::Abs(value); |
6255180c | 62 | } |
63 | ||
ffed2f34 | 64 | AliMUONFastTracking::AliMUONFastTracking(const AliMUONFastTracking & ft): |
65 | TObject(), | |
66 | fNbinp(10), | |
67 | fPmin(0.), | |
68 | fPmax(200.), | |
69 | fDeltaP((fPmax-fPmin)/fNbinp), | |
70 | fNbintheta(10), | |
71 | fThetamin(2.), | |
72 | fThetamax(9.), | |
73 | fDeltaTheta((fThetamax-fThetamin)/fNbintheta), | |
74 | fNbinphi(10), | |
75 | fPhimin(-180.), | |
76 | fPhimax(180.), | |
77 | fDeltaPhi((fPhimax-fPhimin)/fNbinphi), | |
78 | fPrintLevel(1), | |
79 | fBkg(0.), | |
80 | fSpline(0), | |
81 | fClusterFinder(kOld) | |
041f7f97 | 82 | { |
83 | // Copy constructor | |
84 | ft.Copy(*this); | |
85 | } | |
86 | ||
87 | ||
6255180c | 88 | AliMUONFastTracking* AliMUONFastTracking::Instance() |
89 | { | |
90 | // Set random number generator | |
91 | if (fgMUONFastTracking) { | |
92 | return fgMUONFastTracking; | |
93 | } else { | |
94 | fgMUONFastTracking = new AliMUONFastTracking(); | |
95 | return fgMUONFastTracking; | |
96 | } | |
97 | } | |
98 | ||
ffed2f34 | 99 | AliMUONFastTracking::AliMUONFastTracking(): |
100 | fNbinp(10), | |
101 | fPmin(0.), | |
102 | fPmax(200.), | |
103 | fDeltaP((fPmax-fPmin)/fNbinp), | |
104 | fNbintheta(10), | |
105 | fThetamin(2.), | |
106 | fThetamax(9.), | |
107 | fDeltaTheta((fThetamax-fThetamin)/fNbintheta), | |
108 | fNbinphi(10), | |
109 | fPhimin(-180.), | |
110 | fPhimax(180.), | |
111 | fDeltaPhi((fPhimax-fPhimin)/fNbinphi), | |
112 | fPrintLevel(1), | |
113 | fBkg(0.), | |
114 | fSpline(0), | |
115 | fClusterFinder(kOld) | |
6255180c | 116 | { |
041f7f97 | 117 | // |
118 | // constructor | |
119 | // | |
1e68a0c5 | 120 | for (Int_t i = 0; i<20;i++) { |
121 | for (Int_t j = 0; j<20; j++) { | |
122 | for (Int_t k = 0; k<20; k++) { | |
123 | fFitp[i][j][k] = 0x0; | |
124 | } | |
125 | } | |
126 | } | |
6255180c | 127 | } |
128 | ||
129 | void AliMUONFastTracking::Init(Float_t bkg) | |
130 | { | |
131 | // | |
132 | // Initialization | |
133 | // | |
134 | for (Int_t ip=0; ip< fNbinp; ip++){ | |
135 | for (Int_t itheta=0; itheta< fNbintheta; itheta++){ | |
136 | for (Int_t iphi=0; iphi< fNbinphi; iphi++){ | |
137 | fCurrentEntry[ip][itheta][iphi] = new AliMUONFastTrackingEntry; | |
138 | for (Int_t ibkg=0; ibkg<4; ibkg++){ | |
139 | fEntry[ip][itheta][iphi][ibkg] = new AliMUONFastTrackingEntry; | |
140 | } | |
141 | } | |
142 | } | |
143 | } | |
144 | ||
145 | char filename [100]; | |
d53fc881 | 146 | if (fClusterFinder==kOld) sprintf (filename,"$(ALICE_ROOT)/FASTSIM/data/MUONtrackLUT.root"); |
041f7f97 | 147 | else sprintf (filename,"$(ALICE_ROOT)/FASTSIM/data/MUONtrackLUT-AZ.root"); |
d53fc881 | 148 | |
6255180c | 149 | TFile *file = new TFile(filename); |
150 | ReadLUT(file); | |
151 | SetBackground(bkg); | |
d53fc881 | 152 | UseSpline(0); |
6255180c | 153 | } |
154 | ||
155 | ||
156 | void AliMUONFastTracking::ReadLUT(TFile* file) | |
157 | { | |
041f7f97 | 158 | // |
159 | // read the lookup tables from file | |
160 | // | |
6255180c | 161 | TH3F *heff[5][3], *hacc[5][3], *hmeanp, *hsigmap, *hsigma1p, *hchi2p; |
162 | TH3F *hnormg2, *hmeang2, *hsigmag2, *hmeantheta, *hsigmatheta, *hchi2theta; | |
163 | TH3F *hmeanphi, *hsigmaphi, *hchi2phi; | |
164 | char tag[40], tag2[40]; | |
165 | ||
d53fc881 | 166 | printf ("Reading parameters from LUT file %s...\n",file->GetName()); |
167 | ||
041f7f97 | 168 | const Float_t kBkg[4] = {0, 0.5, 1, 2}; |
6255180c | 169 | for (Int_t ibkg=0; ibkg<4; ibkg++) { |
041f7f97 | 170 | sprintf (tag,"BKG%g",kBkg[ibkg]); |
6255180c | 171 | file->cd(tag); |
172 | for (Int_t isplp = 0; isplp<kSplitP; isplp++) { | |
173 | for (Int_t ispltheta = 0; ispltheta<kSplitTheta; ispltheta++) { | |
174 | sprintf (tag2,"heff[%d][%d]",isplp,ispltheta); | |
175 | heff[isplp][ispltheta] = (TH3F*)gDirectory->Get(tag2); | |
176 | sprintf (tag2,"hacc[%d][%d]",isplp,ispltheta); | |
177 | hacc[isplp][ispltheta] = (TH3F*)gDirectory->Get(tag2); | |
178 | } | |
179 | } | |
180 | hmeanp = (TH3F*)gDirectory->Get("hmeanp"); | |
181 | hsigmap = (TH3F*)gDirectory->Get("hsigmap"); | |
182 | hsigma1p = (TH3F*)gDirectory->Get("hsigma1p"); | |
183 | hchi2p = (TH3F*)gDirectory->Get("hchi2p"); | |
184 | hnormg2 = (TH3F*)gDirectory->Get("hnormg2"); | |
185 | hmeang2 = (TH3F*)gDirectory->Get("hmeang2"); | |
186 | hsigmag2 = (TH3F*)gDirectory->Get("hsigmag2"); | |
187 | hmeantheta = (TH3F*)gDirectory->Get("hmeantheta"); | |
188 | hsigmatheta = (TH3F*)gDirectory->Get("hsigmatheta"); | |
189 | hchi2theta = (TH3F*)gDirectory->Get("hchi2theta"); | |
190 | hmeanphi = (TH3F*)gDirectory->Get("hmeanphi"); | |
191 | hsigmaphi = (TH3F*)gDirectory->Get("hsigmaphi"); | |
192 | hchi2phi = (TH3F*)gDirectory->Get("hchi2phi"); | |
193 | ||
6255180c | 194 | for (Int_t ip=0; ip<fNbinp ;ip++) { |
195 | for (Int_t itheta=0; itheta<fNbintheta ;itheta++) { | |
196 | for (Int_t iphi=0; iphi<fNbinphi ;iphi++) { | |
197 | Float_t p = fPmin + fDeltaP * (ip + 0.5); | |
198 | Float_t theta = fThetamin + fDeltaTheta * (itheta + 0.5); | |
199 | Float_t phi = fPhimin + fDeltaPhi * (iphi + 0.5); | |
200 | ||
4ef9f58b | 201 | fEntry[ip][itheta][iphi][ibkg]->SetP(p); |
202 | fEntry[ip][itheta][iphi][ibkg]->SetMeanp(hmeanp->GetBinContent(ip+1,itheta+1,iphi+1)); | |
203 | fEntry[ip][itheta][iphi][ibkg]->SetSigmap(TMath::Abs(hsigmap->GetBinContent(ip+1,itheta+1,iphi+1))); | |
204 | fEntry[ip][itheta][iphi][ibkg]->SetSigma1p(hsigma1p->GetBinContent(ip+1,itheta+1,iphi+1)); | |
205 | fEntry[ip][itheta][iphi][ibkg]->SetChi2p(hchi2p->GetBinContent(ip+1,itheta+1,iphi+1)); | |
206 | fEntry[ip][itheta][iphi][ibkg]->SetNormG2(hnormg2->GetBinContent(ip+1,itheta+1,iphi+1)); | |
207 | fEntry[ip][itheta][iphi][ibkg]->SetMeanG2(hmeang2->GetBinContent(ip+1,itheta+1,iphi+1)); | |
208 | if (ibkg == 0) fEntry[ip][itheta][iphi][ibkg]->SetSigmaG2(9999); | |
209 | else fEntry[ip][itheta][iphi][ibkg]->SetSigmaG2(hsigmag2->GetBinContent(ip+1,itheta+1,iphi+1)); | |
210 | fEntry[ip][itheta][iphi][ibkg]->SetTheta(theta); | |
211 | fEntry[ip][itheta][iphi][ibkg]->SetMeantheta(hmeantheta->GetBinContent(ip+1,itheta+1,iphi+1)); | |
212 | fEntry[ip][itheta][iphi][ibkg]->SetSigmatheta(TMath::Abs(hsigmatheta->GetBinContent(ip+1,itheta+1,iphi+1))); | |
213 | fEntry[ip][itheta][iphi][ibkg]->SetChi2theta(hchi2theta->GetBinContent(ip+1,itheta+1,iphi+1)); | |
214 | fEntry[ip][itheta][iphi][ibkg]->SetPhi(phi); | |
215 | fEntry[ip][itheta][iphi][ibkg]->SetMeanphi(hmeanphi->GetBinContent(ip+1,itheta+1,iphi+1)); | |
216 | fEntry[ip][itheta][iphi][ibkg]->SetSigmaphi(TMath::Abs(hsigmaphi->GetBinContent(ip+1,itheta+1,iphi+1))); | |
217 | fEntry[ip][itheta][iphi][ibkg]->SetChi2phi(hchi2phi->GetBinContent(ip+1,itheta+1,iphi+1)); | |
6255180c | 218 | for (Int_t i=0; i<kSplitP; i++) { |
219 | for (Int_t j=0; j<kSplitTheta; j++) { | |
4ef9f58b | 220 | fEntry[ip][itheta][iphi][ibkg]->SetAcc(i,j,hacc[i][j]->GetBinContent(ip+1,itheta+1,iphi+1)); |
221 | fEntry[ip][itheta][iphi][ibkg]->SetEff(i,j,heff[i][j]->GetBinContent(ip+1,itheta+1,iphi+1)); | |
6255180c | 222 | } |
223 | } | |
224 | } // iphi | |
225 | } // itheta | |
226 | } // ip | |
227 | } // ibkg | |
228 | ||
229 | TGraph *graph = new TGraph(3); | |
230 | TF1 *f = new TF1("f","[0]+[1]*x"); | |
231 | ||
232 | for (Int_t ip=0; ip< fNbinp; ip++){ | |
233 | for (Int_t itheta=0; itheta< fNbintheta; itheta++){ | |
234 | for (Int_t iphi=0; iphi< fNbinphi; iphi++){ | |
4ef9f58b | 235 | graph->SetPoint(0,0.5,fEntry[ip][itheta][iphi][1]->GetSigmaG2()); |
236 | graph->SetPoint(1,1,fEntry[ip][itheta][iphi][2]->GetSigmaG2()); | |
237 | graph->SetPoint(2,2,fEntry[ip][itheta][iphi][3]->GetSigmaG2()); | |
6255180c | 238 | graph->Fit("f","q"); |
4ef9f58b | 239 | fEntry[ip][itheta][iphi][0]->SetSigmaG2(f->Eval(0)); |
6255180c | 240 | } |
241 | } | |
242 | } | |
243 | f->Delete(); | |
244 | graph->Delete(); | |
245 | printf ("parameters read. \n"); | |
246 | } | |
247 | ||
248 | void AliMUONFastTracking::GetBinning(Int_t &nbinp, Float_t &pmin, Float_t &pmax, | |
249 | Int_t &nbintheta, Float_t &thetamin, | |
250 | Float_t &thetamax, | |
041f7f97 | 251 | Int_t &nbinphi, Float_t &phimin, Float_t &phimax) const |
6255180c | 252 | { |
041f7f97 | 253 | // |
254 | // gets the binning for the discrete parametrizations in the lookup table | |
255 | // | |
6255180c | 256 | nbinp = fNbinp; |
257 | pmin = fPmin; | |
258 | pmax = fPmax; | |
259 | nbintheta = fNbintheta; | |
260 | thetamin = fThetamin; | |
261 | thetamax = fThetamax; | |
262 | nbinphi = fNbinphi; | |
263 | phimin = fPhimin; | |
264 | phimax = fPhimax; | |
265 | } | |
266 | ||
267 | ||
268 | void AliMUONFastTracking::GetIpIthetaIphi(Float_t p, Float_t theta, Float_t phi, | |
269 | Int_t charge, Int_t &ip, Int_t &itheta, | |
041f7f97 | 270 | Int_t &iphi) const |
6255180c | 271 | { |
041f7f97 | 272 | // |
273 | // gets the id of the cells in the LUT for a given (p,theta,phi, charge) | |
274 | // | |
6255180c | 275 | if (charge < 0) phi = -phi; |
276 | ip = Int_t (( p - fPmin ) / fDeltaP); | |
277 | itheta = Int_t (( theta - fThetamin ) / fDeltaTheta); | |
278 | iphi = Int_t (( phi - fPhimin ) / fDeltaPhi); | |
279 | ||
1e68a0c5 | 280 | |
d53fc881 | 281 | if (ip< 0) ip = 0; |
282 | if (ip>= fNbinp) ip = fNbinp-1; | |
283 | if (itheta< 0) itheta = 0; | |
284 | if (itheta>= fNbintheta) itheta = fNbintheta-1; | |
6255180c | 285 | |
d53fc881 | 286 | if (iphi< 0) iphi = 0; |
287 | if (iphi>= fNbinphi) iphi = fNbinphi-1; | |
6255180c | 288 | } |
289 | ||
290 | void AliMUONFastTracking::GetSplit(Int_t ip, Int_t itheta, | |
041f7f97 | 291 | Int_t &nSplitP, Int_t &nSplitTheta) const |
292 | { | |
293 | // | |
294 | // the first cell is splitted in more bins for theta and momentum | |
295 | // parameterizations. Get the number of divisions for the splitted bins | |
296 | // | |
6255180c | 297 | if (ip==0) nSplitP = 5; |
298 | else nSplitP = 2; | |
299 | if (itheta==0) nSplitTheta = 3; | |
300 | else nSplitTheta = 1; | |
301 | } | |
302 | ||
303 | Float_t AliMUONFastTracking::Efficiency(Float_t p, Float_t theta, | |
304 | Float_t phi, Int_t charge){ | |
041f7f97 | 305 | // |
306 | // gets the tracking efficiency | |
307 | // | |
6255180c | 308 | Int_t ip=0, itheta=0, iphi=0; |
309 | GetIpIthetaIphi(p,theta,phi,charge,ip,itheta,iphi); | |
310 | Int_t nSplitP, nSplitTheta; | |
311 | GetSplit(ip,itheta,nSplitP,nSplitTheta); | |
312 | ||
313 | Float_t dp = p - fPmin; | |
314 | Int_t ibinp = Int_t(nSplitP*(dp - fDeltaP * Int_t(dp / fDeltaP))/fDeltaP); | |
315 | Float_t dtheta = theta - fThetamin; | |
316 | Int_t ibintheta = Int_t(nSplitTheta*(dtheta - fDeltaTheta * Int_t(dtheta / fDeltaTheta))/fDeltaTheta); | |
4ef9f58b | 317 | Float_t eff = fCurrentEntry[ip][itheta][iphi]->GetEff(ibinp,ibintheta); |
6255180c | 318 | return eff; |
319 | } | |
320 | ||
321 | Float_t AliMUONFastTracking::Acceptance(Float_t p, Float_t theta, | |
322 | Float_t phi, Int_t charge){ | |
041f7f97 | 323 | // |
324 | // gets the geometrical acceptance | |
325 | // | |
6255180c | 326 | if (theta<fThetamin || theta>fThetamax) return 0; |
327 | ||
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 | // central value and corrections with spline | |
333 | ||
334 | Float_t dp = p - fPmin; | |
335 | Int_t ibinp = Int_t(nSplitP*(dp - fDeltaP * Int_t(dp / fDeltaP))/fDeltaP); | |
336 | Float_t dtheta = theta - fThetamin; | |
337 | Int_t ibintheta = Int_t(nSplitTheta*(dtheta - fDeltaTheta * Int_t(dtheta / fDeltaTheta))/fDeltaTheta); | |
4ef9f58b | 338 | Float_t acc = fCurrentEntry[ip][itheta][iphi]->GetAcc(ibinp,ibintheta); |
6255180c | 339 | return acc; |
340 | } | |
341 | ||
342 | Float_t AliMUONFastTracking::MeanP(Float_t p, Float_t theta, | |
041f7f97 | 343 | Float_t phi, Int_t charge) const |
6255180c | 344 | { |
041f7f97 | 345 | // |
346 | // gets the mean value of the prec-pgen distribution | |
347 | // | |
6255180c | 348 | Int_t ip=0, itheta=0, iphi=0; |
349 | GetIpIthetaIphi(p,theta,phi,charge,ip,itheta,iphi); | |
4ef9f58b | 350 | return fCurrentEntry[ip][itheta][iphi]->GetMeanp(); |
6255180c | 351 | } |
352 | ||
353 | Float_t AliMUONFastTracking::SigmaP(Float_t p, Float_t theta, | |
041f7f97 | 354 | Float_t phi, Int_t charge) const |
6255180c | 355 | { |
041f7f97 | 356 | // |
357 | // gets the width of the prec-pgen distribution | |
358 | // | |
6255180c | 359 | Int_t ip=0, itheta=0, iphi=0; |
360 | Int_t index; | |
361 | GetIpIthetaIphi(p,theta,phi,charge,ip,itheta,iphi); | |
362 | // central value and corrections with spline | |
4ef9f58b | 363 | Float_t sigmap = fCurrentEntry[ip][itheta][iphi]->GetSigmap(); |
6255180c | 364 | if (!fSpline) return sigmap; |
365 | // corrections vs p, theta, phi | |
366 | index = iphi + fNbinphi * itheta; | |
367 | Double_t xmin,ymin,xmax,ymax; | |
368 | Float_t frac1 = fSplineSigmap[index][0]->Eval(p)/sigmap; | |
369 | ||
370 | if (p>fPmax-fDeltaP/2.) { | |
4ef9f58b | 371 | Float_t s1 = fCurrentEntry[fNbinp-1][itheta][iphi]->GetSigmap(); |
372 | Float_t s2 = fCurrentEntry[fNbinp-2][itheta][iphi]->GetSigmap(); | |
373 | Float_t s3 = fCurrentEntry[fNbinp-3][itheta][iphi]->GetSigmap(); | |
6255180c | 374 | Float_t p1 = fDeltaP * (fNbinp - 1 + 0.5) + fPmin; |
375 | Float_t p2 = fDeltaP * (fNbinp - 2 + 0.5) + fPmin; | |
376 | Float_t p3 = fDeltaP * (fNbinp - 3 + 0.5) + fPmin; | |
377 | Float_t p12 = p1 * p1, p22 = p2 * p2, p32 = p3 * p3; | |
378 | Float_t d = p12*p2 + p1*p32 + p22*p3 - p32*p2 - p3*p12 - p22*p1; | |
379 | Float_t a = (s1*p2 + p1*s3 + s2*p3 - s3*p2 - p3*s1 - s2*p1) / d; | |
380 | Float_t b = (p12*s2 + s1*p32 + p22*s3 - p32*s2 - s3*p12 - p22*s1)/d; | |
381 | Float_t c = (p12*p2*s3 + p1*p32*s2 + p22*p3*s1 | |
382 | - p32*p2*s1 - p3*p12*s2 - p22*p1*s3) / d; | |
383 | Float_t sigma = a * p * p + b * p + c; | |
384 | frac1 = sigma/sigmap; | |
385 | } | |
386 | index = iphi + fNbinphi * ip; | |
387 | fSplineEff[index][1]->GetKnot(0,xmin,ymin); | |
388 | fSplineEff[index][1]->GetKnot(9,xmax,ymax); | |
389 | if (theta>xmax) theta = xmax; | |
390 | Float_t frac2 = fSplineSigmap[index][1]->Eval(theta)/sigmap; | |
391 | index = itheta + fNbintheta * ip; | |
392 | fSplineEff[index][2]->GetKnot(0,xmin,ymin); | |
393 | fSplineEff[index][2]->GetKnot(9,xmax,ymax); | |
394 | if (phi>xmax) phi = xmax; | |
395 | Float_t frac3 = fSplineSigmap[index][2]->Eval(phi)/sigmap; | |
396 | Float_t sigmatot = sigmap * frac1 * frac2 * frac3; | |
397 | if (sigmatot<0) sigmatot = sigmap; | |
398 | return sigmatot; | |
399 | } | |
400 | ||
401 | Float_t AliMUONFastTracking::Sigma1P(Float_t p, Float_t theta, | |
041f7f97 | 402 | Float_t phi, Int_t charge) const |
6255180c | 403 | { |
041f7f97 | 404 | // |
405 | // gets the width correction of the prec-pgen distribution (see FitP) | |
406 | // | |
6255180c | 407 | Int_t ip=0, itheta=0, iphi=0; |
408 | GetIpIthetaIphi(p,theta,phi,charge,ip,itheta,iphi); | |
409 | if (p>fPmax) { | |
410 | // linear extrapolation of sigmap for p out of range | |
4ef9f58b | 411 | Float_t s1 = fCurrentEntry[fNbinp-1][itheta][iphi]->GetSigma1p(); |
412 | Float_t s2 = fCurrentEntry[fNbinp-2][itheta][iphi]->GetSigma1p(); | |
6255180c | 413 | Float_t p1 = fDeltaP * (fNbinp - 1 + 0.5) + fPmin; |
414 | Float_t p2 = fDeltaP * (fNbinp - 2 + 0.5) + fPmin; | |
415 | Float_t sigma = 1./(p1-p2) * ( (s1-s2)*p + (s2-s1)*p1 + s1*(p1-p2) ); | |
416 | return sigma; | |
417 | } | |
4ef9f58b | 418 | else return fCurrentEntry[ip][itheta][iphi]->GetSigma1p(); |
6255180c | 419 | } |
420 | ||
421 | Float_t AliMUONFastTracking::NormG2(Float_t p, Float_t theta, | |
041f7f97 | 422 | Float_t phi, Int_t charge) const |
6255180c | 423 | { |
041f7f97 | 424 | // |
425 | // gets the relative normalization of the background | |
426 | // (gaussian) component in the prec-pgen distribution | |
427 | // | |
6255180c | 428 | Int_t ip=0, itheta=0, iphi=0; |
429 | GetIpIthetaIphi(p,theta,phi,charge,ip,itheta,iphi); | |
430 | if (p>fPmax) { | |
431 | // linear extrapolation of sigmap for p out of range | |
4ef9f58b | 432 | Float_t s1 = fCurrentEntry[fNbinp-1][itheta][iphi]->GetNormG2(); |
433 | Float_t s2 = fCurrentEntry[fNbinp-2][itheta][iphi]->GetNormG2(); | |
6255180c | 434 | Float_t p1 = fDeltaP * (fNbinp - 1 + 0.5) + fPmin; |
435 | Float_t p2 = fDeltaP * (fNbinp - 2 + 0.5) + fPmin; | |
436 | Float_t norm = 1./(p1-p2) * ( (s1-s2)*p + (s2-s1)*p1 + s1*(p1-p2) ); | |
437 | return norm; | |
438 | } | |
4ef9f58b | 439 | else return fCurrentEntry[ip][itheta][iphi]->GetNormG2(); |
6255180c | 440 | } |
441 | ||
442 | Float_t AliMUONFastTracking::MeanG2(Float_t p, Float_t theta, | |
041f7f97 | 443 | Float_t phi, Int_t charge) const |
6255180c | 444 | { |
041f7f97 | 445 | // |
446 | // gets the mean value of the background | |
447 | // (gaussian) component in the prec-pgen distribution | |
448 | // | |
6255180c | 449 | Int_t ip=0, itheta=0, iphi=0; |
450 | GetIpIthetaIphi(p,theta,phi,charge,ip,itheta,iphi); | |
451 | if (p>fPmax) { | |
452 | // linear extrapolation of sigmap for p out of range | |
4ef9f58b | 453 | Float_t s1 = fCurrentEntry[fNbinp-1][itheta][iphi]->GetMeanG2(); |
454 | Float_t s2 = fCurrentEntry[fNbinp-2][itheta][iphi]->GetMeanG2(); | |
6255180c | 455 | Float_t p1 = fDeltaP * (fNbinp - 1 + 0.5) + fPmin; |
456 | Float_t p2 = fDeltaP * (fNbinp - 2 + 0.5) + fPmin; | |
457 | Float_t norm = 1./(p1-p2) * ( (s1-s2)*p + (s2-s1)*p1 + s1*(p1-p2) ); | |
458 | return norm; | |
459 | } | |
4ef9f58b | 460 | else return fCurrentEntry[ip][itheta][iphi]->GetMeanG2(); |
6255180c | 461 | } |
462 | ||
463 | Float_t AliMUONFastTracking::SigmaG2(Float_t p, Float_t theta, | |
041f7f97 | 464 | Float_t phi, Int_t charge) const |
6255180c | 465 | { |
041f7f97 | 466 | // |
467 | // gets the width of the background | |
468 | // (gaussian) component in the prec-pgen distribution | |
469 | // | |
6255180c | 470 | Int_t ip=0, itheta=0, iphi=0; |
471 | GetIpIthetaIphi(p,theta,phi,charge,ip,itheta,iphi); | |
472 | if (p>fPmax) { | |
473 | // linear extrapolation of sigmap for p out of range | |
4ef9f58b | 474 | Float_t s1 = fCurrentEntry[fNbinp-1][itheta][iphi]->GetSigmaG2(); |
475 | Float_t s2 = fCurrentEntry[fNbinp-2][itheta][iphi]->GetSigmaG2(); | |
6255180c | 476 | Float_t p1 = fDeltaP * (fNbinp - 1 + 0.5) + fPmin; |
477 | Float_t p2 = fDeltaP * (fNbinp - 2 + 0.5) + fPmin; | |
478 | Float_t sigma = 1./(p1-p2) * ( (s1-s2)*p + (s2-s1)*p1 + s1*(p1-p2) ); | |
479 | return sigma; | |
480 | } | |
4ef9f58b | 481 | else return fCurrentEntry[ip][itheta][iphi]->GetSigmaG2(); |
6255180c | 482 | } |
483 | ||
484 | ||
485 | Float_t AliMUONFastTracking::MeanTheta(Float_t p, Float_t theta, | |
041f7f97 | 486 | Float_t phi, Int_t charge) const |
6255180c | 487 | { |
041f7f97 | 488 | // |
489 | // gets the mean value of the thetarec-thetagen distribution | |
490 | // | |
6255180c | 491 | Int_t ip=0, itheta=0, iphi=0; |
492 | GetIpIthetaIphi(p,theta,phi,charge,ip,itheta,iphi); | |
4ef9f58b | 493 | return fCurrentEntry[ip][itheta][iphi]->GetMeantheta(); |
6255180c | 494 | } |
495 | ||
041f7f97 | 496 | Float_t AliMUONFastTracking::SigmaTheta(Float_t p, Float_t theta, |
497 | Float_t phi, Int_t charge) const | |
498 | { | |
499 | // | |
500 | // gets the width of the thetarec-thetagen distribution | |
501 | // | |
6255180c | 502 | Int_t ip=0, itheta=0, iphi=0; |
503 | Int_t index; | |
504 | GetIpIthetaIphi(p,theta,phi,charge,ip,itheta,iphi); | |
505 | // central value and corrections with spline | |
4ef9f58b | 506 | Float_t sigmatheta = fCurrentEntry[ip][itheta][iphi]->GetSigmatheta(); |
6255180c | 507 | if (!fSpline) return sigmatheta; |
508 | // corrections vs p, theta, phi | |
509 | index = iphi + fNbinphi * itheta; | |
510 | Double_t xmin,ymin,xmax,ymax; | |
511 | Float_t frac1 = fSplineSigmatheta[index][0]->Eval(p)/sigmatheta; | |
512 | if (p>fPmax-fDeltaP/2.) { | |
513 | // linear extrapolation of sigmap for p out of range | |
4ef9f58b | 514 | Float_t s1 = fCurrentEntry[fNbinp-1][itheta][iphi]->GetSigmatheta(); |
515 | Float_t s2 = fCurrentEntry[fNbinp-2][itheta][iphi]->GetSigmatheta(); | |
6255180c | 516 | Float_t p1 = fDeltaP * (fNbinp - 1 + 0.5) + fPmin; |
517 | Float_t p2 = fDeltaP * (fNbinp - 2 + 0.5) + fPmin; | |
518 | Float_t sigma = 1./(p1-p2) * ( (s1-s2)*p + (s2-s1)*p1 + s1*(p1-p2) ); | |
519 | frac1=sigma/sigmatheta; | |
520 | } | |
521 | index = iphi + fNbinphi * ip; | |
522 | fSplineEff[index][1]->GetKnot(0,xmin,ymin); | |
523 | fSplineEff[index][1]->GetKnot(9,xmax,ymax); | |
524 | if (theta>xmax) theta = xmax; | |
525 | Float_t frac2 = fSplineSigmatheta[index][1]->Eval(theta)/sigmatheta; | |
526 | index = itheta + fNbintheta * ip; | |
527 | fSplineEff[index][2]->GetKnot(0,xmin,ymin); | |
528 | fSplineEff[index][2]->GetKnot(9,xmax,ymax); | |
529 | if (phi>xmax) phi = xmax; | |
530 | Float_t frac3 = fSplineSigmatheta[index][2]->Eval(phi)/sigmatheta; | |
531 | return sigmatheta * frac1 * frac2 * frac3; | |
532 | } | |
533 | ||
534 | ||
535 | Float_t AliMUONFastTracking::MeanPhi(Float_t p, Float_t theta, | |
041f7f97 | 536 | Float_t phi, Int_t charge) const |
537 | { | |
538 | // | |
539 | // gets the mean value of the phirec-phigen distribution | |
540 | // | |
6255180c | 541 | Int_t ip=0, itheta=0, iphi=0; |
542 | GetIpIthetaIphi(p,theta,phi,charge,ip,itheta,iphi); | |
4ef9f58b | 543 | return fCurrentEntry[ip][itheta][iphi]->GetMeanphi(); |
6255180c | 544 | } |
545 | ||
546 | Float_t AliMUONFastTracking::SigmaPhi(Float_t p, Float_t theta, | |
547 | Float_t phi, Int_t charge){ | |
041f7f97 | 548 | // |
549 | // gets the width of the phirec-phigen distribution | |
550 | // | |
6255180c | 551 | Int_t ip=0, itheta=0, iphi=0; |
552 | Int_t index; | |
553 | GetIpIthetaIphi(p,theta,phi,charge,ip,itheta,iphi); | |
554 | // central value and corrections with spline | |
4ef9f58b | 555 | Float_t sigmaphi = fCurrentEntry[ip][itheta][iphi]->GetSigmaphi(); |
6255180c | 556 | if (!fSpline) return sigmaphi; |
557 | // corrections vs p, theta, phi | |
558 | index = iphi + fNbinphi * itheta; | |
559 | Float_t frac1 = fSplineSigmaphi[index][0]->Eval(p)/sigmaphi; | |
560 | Double_t xmin,ymin,xmax,ymax; | |
561 | if (p>fPmax-fDeltaP/2.) { | |
4ef9f58b | 562 | Float_t s1 = fCurrentEntry[fNbinp-1][itheta][iphi]->GetSigmaphi(); |
563 | Float_t s2 = fCurrentEntry[fNbinp-2][itheta][iphi]->GetSigmaphi(); | |
6255180c | 564 | Float_t p1 = fDeltaP * (fNbinp - 1 + 0.5) + fPmin; |
565 | Float_t p2 = fDeltaP * (fNbinp - 2 + 0.5) + fPmin; | |
566 | Float_t sigma = 1./(p1-p2) * ( (s1-s2)*p + (s2-s1)*p1 + s1*(p1-p2) ); | |
567 | frac1 = sigma/sigmaphi; | |
568 | } | |
569 | ||
570 | index = iphi + fNbinphi * ip; | |
571 | fSplineEff[index][1]->GetKnot(0,xmin,ymin); | |
572 | fSplineEff[index][1]->GetKnot(9,xmax,ymax); | |
573 | if (theta>xmax) theta = xmax; | |
574 | Float_t frac2 = fSplineSigmaphi[index][1]->Eval(theta)/sigmaphi; | |
575 | index = itheta + fNbintheta * ip; | |
576 | fSplineEff[index][2]->GetKnot(0,xmin,ymin); | |
577 | fSplineEff[index][2]->GetKnot(9,xmax,ymax); | |
578 | if (phi>xmax) phi = xmax; | |
579 | Float_t frac3 = fSplineSigmaphi[index][2]->Eval(phi)/sigmaphi; | |
580 | return sigmaphi * frac1 * frac2 * frac3; | |
581 | } | |
582 | ||
583 | void AliMUONFastTracking::SetSpline(){ | |
041f7f97 | 584 | // |
585 | // sets the spline functions for a smooth behaviour of the parameters | |
586 | // when going from one cell to another | |
587 | // | |
6255180c | 588 | printf ("Setting spline functions..."); |
589 | char splname[40]; | |
590 | Double_t x[20][3]; | |
591 | Double_t x2[50][3]; | |
592 | Int_t nbins[3] = {fNbinp, fNbintheta, fNbinphi}; | |
593 | Double_t xspl[20],yeff[50],ysigmap[20],ysigma1p[20]; | |
594 | Double_t yacc[50], ysigmatheta[20],ysigmaphi[20]; | |
595 | Double_t xsp2[50]; | |
596 | // let's calculate the x axis for p, theta, phi | |
597 | ||
598 | Int_t i, ispline, ivar; | |
599 | for (i=0; i< fNbinp; i++) x[i][0] = fPmin + fDeltaP * (i + 0.5); | |
600 | for (i=0; i< fNbintheta; i++) x[i][1] = fThetamin + fDeltaTheta * (i + 0.5); | |
601 | for (i=0; i< fNbinphi; i++) x[i][2] = fPhimin + fDeltaPhi * (i + 0.5); | |
602 | ||
603 | for (i=0; i< 5 * fNbinp; i++) x2[i][0] = fPmin + fDeltaP * (i + 0.5)/5.; | |
604 | for (i=0; i< 5 * fNbintheta; i++) x2[i][1] = fThetamin + fDeltaTheta * (i + 0.5)/5.; | |
605 | for (i=0; i< 5 * fNbinphi; i++) x2[i][2] = fPhimin + fDeltaPhi * (i + 0.5)/5.; | |
606 | ||
607 | // splines in p | |
608 | ivar = 0; | |
609 | for (i=0; i<nbins[ivar]; i++) xspl[i] = x[i][ivar]; | |
610 | for (i=0; i<5 * nbins[ivar]; i++) xsp2[i] = x2[i][ivar]; | |
611 | ispline=0; | |
612 | for (Int_t itheta=0; itheta< fNbintheta; itheta++){ | |
613 | for (Int_t iphi=0; iphi< fNbinphi; iphi++){ | |
614 | for (Int_t ip=0; ip<fNbinp; ip++) { | |
4ef9f58b | 615 | ysigmap[ip] = fCurrentEntry[ip][itheta][iphi]->GetSigmap(); |
616 | ysigma1p[ip] = fCurrentEntry[ip][itheta][iphi]->GetSigma1p(); | |
617 | ysigmatheta[ip] = fCurrentEntry[ip][itheta][iphi]->GetSigmatheta(); | |
618 | ysigmaphi[ip] = fCurrentEntry[ip][itheta][iphi]->GetSigmaphi(); | |
6255180c | 619 | } |
620 | if (fPrintLevel>3) cout << " creating new spline " << splname << endl; | |
621 | sprintf (splname,"fSplineEff[%d][%d]",ispline,ivar); | |
622 | fSplineEff[ispline][ivar] = new TSpline3(splname,xsp2,yeff,5 * nbins[ivar]); | |
623 | sprintf (splname,"fSplineAcc[%d][%d]",ispline,ivar); | |
624 | fSplineAcc[ispline][ivar] = new TSpline3(splname,xsp2,yacc,5 * nbins[ivar]); | |
625 | sprintf (splname,"fSplineSigmap[%d][%d]",ispline,ivar); | |
626 | fSplineSigmap[ispline][ivar] = new TSpline3(splname,xspl,ysigmap,nbins[ivar]); | |
627 | sprintf (splname,"fSplineSigma1p[%d][%d]",ispline,ivar); | |
628 | fSplineSigma1p[ispline][ivar] = new TSpline3(splname,xspl,ysigma1p,nbins[ivar]); | |
629 | sprintf (splname,"fSplineSigmatheta[%d][%d]",ispline,ivar); | |
630 | fSplineSigmatheta[ispline][ivar] = new TSpline3(splname,xspl,ysigmatheta,nbins[ivar]); | |
631 | sprintf (splname,"fSplineSigmaphi[%d][%d]",ispline,ivar); | |
632 | fSplineSigmaphi[ispline][ivar] = new TSpline3(splname,xspl,ysigmaphi,nbins[ivar]); | |
633 | ispline++; | |
634 | } | |
635 | } | |
636 | ||
637 | ivar = 1; | |
638 | for (i=0; i<nbins[ivar]; i++) xspl[i] = x[i][ivar]; | |
639 | ispline=0; | |
640 | for (Int_t ip=0; ip<fNbinp; ip++) { | |
641 | for (Int_t iphi=0; iphi< fNbinphi; iphi++){ | |
642 | for (Int_t itheta=0; itheta< fNbintheta; itheta++){ | |
643 | // for efficiency and acceptance let's take the central value | |
4ef9f58b | 644 | ysigmap[itheta] = fCurrentEntry[ip][itheta][iphi]->GetSigmap(); |
645 | ysigma1p[itheta] = fCurrentEntry[ip][itheta][iphi]->GetSigma1p(); | |
646 | ysigmatheta[itheta] = fCurrentEntry[ip][itheta][iphi]->GetSigmatheta(); | |
647 | ysigmaphi[itheta] = fCurrentEntry[ip][itheta][iphi]->GetSigmaphi(); | |
6255180c | 648 | } |
649 | if (fPrintLevel>3) cout << " creating new spline " << splname << endl; | |
650 | sprintf (splname,"fSplineEff[%d][%d]",ispline,ivar); | |
651 | fSplineEff[ispline][ivar] = new TSpline3(splname,xspl,yeff, nbins[ivar]); | |
652 | sprintf (splname,"fSplineAcc[%d][%d]",ispline,ivar); | |
653 | fSplineAcc[ispline][ivar] = new TSpline3(splname,xspl,yacc, nbins[ivar]); | |
654 | sprintf (splname,"fSplineSigmap[%d][%d]",ispline,ivar); | |
655 | fSplineSigmap[ispline][ivar] = new TSpline3(splname,xspl,ysigmap,nbins[ivar]); | |
656 | sprintf (splname,"fSplineSigma1p[%d][%d]",ispline,ivar); | |
657 | fSplineSigma1p[ispline][ivar] = new TSpline3(splname,xspl,ysigma1p,nbins[ivar]); | |
658 | sprintf (splname,"fSplineSigmatheta[%d][%d]",ispline,ivar); | |
659 | fSplineSigmatheta[ispline][ivar] = new TSpline3(splname,xspl,ysigmatheta,nbins[ivar]); | |
660 | sprintf (splname,"fSplineSigmaphi[%d][%d]",ispline,ivar); | |
661 | fSplineSigmaphi[ispline][ivar] = new TSpline3(splname,xspl,ysigmaphi,nbins[ivar]); | |
662 | ispline++; | |
663 | } | |
664 | } | |
665 | ||
666 | ivar = 2; | |
667 | for (i=0; i<nbins[ivar]; i++) xspl[i] = x[i][ivar]; | |
668 | ispline=0; | |
669 | for (Int_t ip=0; ip<fNbinp; ip++) { | |
670 | for (Int_t itheta=0; itheta< fNbintheta; itheta++){ | |
671 | for (Int_t iphi=0; iphi< fNbinphi; iphi++){ | |
672 | // for efficiency and acceptance let's take the central value | |
4ef9f58b | 673 | ysigmap[iphi] = fCurrentEntry[ip][itheta][iphi]->GetSigmap(); |
674 | ysigma1p[iphi] = fCurrentEntry[ip][itheta][iphi]->GetSigma1p(); | |
675 | ysigmatheta[iphi] = fCurrentEntry[ip][itheta][iphi]->GetSigmatheta(); | |
676 | ysigmaphi[iphi] = fCurrentEntry[ip][itheta][iphi]->GetSigmaphi(); | |
6255180c | 677 | } |
678 | if (fPrintLevel>3) cout << " creating new spline " << splname << endl; | |
679 | sprintf (splname,"fSplineEff[%d][%d]",ispline,ivar); | |
680 | fSplineEff[ispline][ivar] = new TSpline3(splname,xspl,yeff, nbins[ivar]); | |
681 | sprintf (splname,"fSplineAcc[%d][%d]",ispline,ivar); | |
682 | fSplineAcc[ispline][ivar] = new TSpline3(splname,xspl,yacc, nbins[ivar]); | |
683 | sprintf (splname,"fSplineSigmap[%d][%d]",ispline,ivar); | |
684 | fSplineSigmap[ispline][ivar] = new TSpline3(splname,xspl,ysigmap,nbins[ivar]); | |
685 | sprintf (splname,"fSplineSigma1p[%d][%d]",ispline,ivar); | |
686 | fSplineSigma1p[ispline][ivar] = new TSpline3(splname,xspl,ysigma1p,nbins[ivar]); | |
687 | sprintf (splname,"fSplineSigmatheta[%d][%d]",ispline,ivar); | |
688 | fSplineSigmatheta[ispline][ivar] = new TSpline3(splname,xspl,ysigmatheta,nbins[ivar]); | |
689 | sprintf (splname,"fSplineSigmaphi[%d][%d]",ispline,ivar); | |
690 | fSplineSigmaphi[ispline][ivar] = new TSpline3(splname,xspl,ysigmaphi,nbins[ivar]); | |
691 | ispline++; | |
692 | } | |
693 | } | |
694 | printf ("...done\n"); | |
695 | } | |
696 | ||
6255180c | 697 | void AliMUONFastTracking::SetBackground(Float_t bkg){ |
041f7f97 | 698 | // |
6255180c | 699 | // linear interpolation of the parameters in the LUT between 2 values where |
700 | // the background has been actually calculated | |
041f7f97 | 701 | // |
6255180c | 702 | if (bkg>2) printf ("WARNING: unsafe extrapolation!\n"); |
703 | fBkg = bkg; | |
704 | ||
041f7f97 | 705 | Float_t bkgLevel[4] = {0, 0.5, 1, 2}; // bkg values for which LUT is calculated |
6255180c | 706 | Int_t ibkg; |
041f7f97 | 707 | for (ibkg=0; ibkg<4; ibkg++) if ( bkg < bkgLevel[ibkg]) break; |
6255180c | 708 | if (ibkg == 4) ibkg--; |
709 | if (ibkg == 0) ibkg++; | |
710 | ||
041f7f97 | 711 | Float_t x0 = bkgLevel[ibkg-1]; |
712 | Float_t x1 = bkgLevel[ibkg]; | |
6255180c | 713 | Float_t x = (bkg - x0) / (x1 - x0); |
714 | ||
715 | Float_t y0, y1; | |
716 | ||
717 | for (Int_t ip=0; ip< fNbinp; ip++){ | |
718 | for (Int_t itheta=0; itheta< fNbintheta; itheta++){ | |
719 | for (Int_t iphi=0; iphi< fNbinphi; iphi++){ | |
4ef9f58b | 720 | fCurrentEntry[ip][itheta][iphi]->SetP(fEntry[ip][itheta][iphi][ibkg]->GetP()); |
721 | fCurrentEntry[ip][itheta][iphi]->SetTheta(fEntry[ip][itheta][iphi][ibkg]->GetTheta()); | |
722 | fCurrentEntry[ip][itheta][iphi]->SetPhi(fEntry[ip][itheta][iphi][ibkg]->GetPhi()); | |
723 | fCurrentEntry[ip][itheta][iphi]->SetChi2p(-1); | |
724 | fCurrentEntry[ip][itheta][iphi]->SetChi2theta(-1); | |
725 | fCurrentEntry[ip][itheta][iphi]->SetChi2phi(-1); | |
726 | ||
727 | y0 = fEntry[ip][itheta][iphi][ibkg-1]->GetMeanp(); | |
728 | y1 = fEntry[ip][itheta][iphi][ibkg]->GetMeanp(); | |
729 | fCurrentEntry[ip][itheta][iphi] ->SetMeanp((y1 - y0) * x + y0); | |
730 | y0 = fEntry[ip][itheta][iphi][ibkg-1]->GetMeantheta(); | |
731 | y1 = fEntry[ip][itheta][iphi][ibkg]->GetMeantheta(); | |
732 | fCurrentEntry[ip][itheta][iphi] ->SetMeantheta((y1 - y0) * x +y0); | |
733 | y0 = fEntry[ip][itheta][iphi][ibkg-1]->GetMeanphi(); | |
734 | y1 = fEntry[ip][itheta][iphi][ibkg]->GetMeanphi(); | |
735 | fCurrentEntry[ip][itheta][iphi] ->SetMeanphi((y1 - y0) * x + y0); | |
736 | y0 = fEntry[ip][itheta][iphi][ibkg-1]->GetSigmap(); | |
737 | y1 = fEntry[ip][itheta][iphi][ibkg]->GetSigmap(); | |
738 | fCurrentEntry[ip][itheta][iphi] ->SetSigmap((y1 - y0) * x + y0); | |
739 | y0 = fEntry[ip][itheta][iphi][ibkg-1]->GetSigmatheta(); | |
740 | y1 = fEntry[ip][itheta][iphi][ibkg]->GetSigmatheta(); | |
741 | fCurrentEntry[ip][itheta][iphi] ->SetSigmatheta((y1 - y0) * x+y0); | |
742 | y0 = fEntry[ip][itheta][iphi][ibkg-1]->GetSigmaphi(); | |
743 | y1 = fEntry[ip][itheta][iphi][ibkg]->GetSigmaphi(); | |
744 | fCurrentEntry[ip][itheta][iphi] ->SetSigmaphi((y1 - y0) * x + y0); | |
745 | y0 = fEntry[ip][itheta][iphi][ibkg-1]->GetSigma1p(); | |
746 | y1 = fEntry[ip][itheta][iphi][ibkg]->GetSigma1p(); | |
747 | fCurrentEntry[ip][itheta][iphi] ->SetSigma1p((y1 - y0) * x + y0); | |
748 | y0 = fEntry[ip][itheta][iphi][ibkg-1]->GetNormG2(); | |
749 | y1 = fEntry[ip][itheta][iphi][ibkg]->GetNormG2(); | |
750 | fCurrentEntry[ip][itheta][iphi] ->SetNormG2((y1 - y0) * x + y0); | |
751 | y0 = fEntry[ip][itheta][iphi][ibkg-1]->GetMeanG2(); | |
752 | y1 = fEntry[ip][itheta][iphi][ibkg]->GetMeanG2(); | |
753 | fCurrentEntry[ip][itheta][iphi] ->SetMeanG2((y1 - y0) * x + y0); | |
6255180c | 754 | |
4ef9f58b | 755 | y0 = fEntry[ip][itheta][iphi][ibkg-1]->GetSigmaG2(); |
756 | y1 = fEntry[ip][itheta][iphi][ibkg]->GetSigmaG2(); | |
757 | fCurrentEntry[ip][itheta][iphi] ->SetSigmaG2((y1 - y0) * x + y0); | |
6255180c | 758 | for (Int_t i=0; i<kSplitP; i++) { |
759 | for (Int_t j=0; j<kSplitTheta; j++) { | |
4ef9f58b | 760 | fCurrentEntry[ip][itheta][iphi]->SetAcc(i,j,fEntry[ip][itheta][iphi][ibkg]->GetAcc(i,j)); |
761 | y0 = fEntry[ip][itheta][iphi][ibkg-1]->GetEff(i,j); | |
762 | y1 = fEntry[ip][itheta][iphi][ibkg]->GetEff(i,j); | |
763 | fCurrentEntry[ip][itheta][iphi]->SetEff(i,j, (y1 - y0) * x + y0); | |
6255180c | 764 | } |
765 | } | |
766 | } | |
767 | } | |
768 | } | |
769 | SetSpline(); | |
770 | } | |
771 | ||
d53fc881 | 772 | TF1* AliMUONFastTracking::GetFitP(Int_t ip,Int_t itheta,Int_t iphi) { |
041f7f97 | 773 | // gets the correct prec-pgen distribution for a given LUT cell |
c6ba3ff4 | 774 | if (!fFitp[ip][itheta][iphi]) { |
775 | char name[256]; | |
776 | sprintf(name, "fit_%d_%d_%d", ip, itheta, iphi); | |
777 | fFitp[ip][itheta][iphi] = new TF1(name ,FitP,-20.,20.,6); | |
d53fc881 | 778 | fFitp[ip][itheta][iphi]->SetNpx(500); |
1e68a0c5 | 779 | fFitp[ip][itheta][iphi]->SetParameters(0.,0.,0.,0.,0.,0.); |
d53fc881 | 780 | } |
781 | return fFitp[ip][itheta][iphi]; | |
782 | } | |
6255180c | 783 | |
041f7f97 | 784 | AliMUONFastTracking& AliMUONFastTracking::operator=(const AliMUONFastTracking& rhs) |
785 | { | |
786 | // Assignment operator | |
787 | rhs.Copy(*this); | |
788 | return *this; | |
789 | } | |
790 | ||
15a060e4 | 791 | void AliMUONFastTracking::Copy(TObject&) const |
041f7f97 | 792 | { |
793 | // | |
794 | // Copy | |
795 | // | |
796 | Fatal("Copy","Not implemented!\n"); | |
797 | } | |
6255180c | 798 | |
799 | ||
800 | ||
801 | ||
802 | ||
803 | ||
804 | ||
805 |