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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 | |
714281ef | 44 | using std::cout; |
45 | using std::endl; | |
6255180c | 46 | ClassImp(AliMUONFastTracking) |
47 | ||
041f7f97 | 48 | |
6255180c | 49 | AliMUONFastTracking* AliMUONFastTracking::fgMUONFastTracking=NULL; |
50 | ||
51 | static Double_t FitP(Double_t *x, Double_t *par){ | |
620294e8 | 52 | // Fit function |
6255180c | 53 | Double_t dx = x[0] - par[0]; |
54 | Double_t dx2 = x[0] - par[4]; | |
55 | Double_t sigma = par[1] * ( 1 + par[2] * dx); | |
56 | if (sigma == 0) { | |
57 | ||
58 | return 0.; | |
59 | } | |
60 | Double_t fasymm = TMath::Exp(-0.5 * dx * dx / (sigma * sigma)); | |
61 | Double_t sigma2 = par[1] * par[5]; | |
62 | Double_t fgauss = TMath::Exp(-0.5 * dx2 * dx2 / (sigma2 * sigma2)); | |
d53fc881 | 63 | Double_t value = fasymm + par[3] * fgauss; |
9a226b7e | 64 | return TMath::Abs(value); |
6255180c | 65 | } |
66 | ||
ffed2f34 | 67 | AliMUONFastTracking::AliMUONFastTracking(const AliMUONFastTracking & ft): |
68 | TObject(), | |
69 | fNbinp(10), | |
70 | fPmin(0.), | |
71 | fPmax(200.), | |
72 | fDeltaP((fPmax-fPmin)/fNbinp), | |
73 | fNbintheta(10), | |
74 | fThetamin(2.), | |
75 | fThetamax(9.), | |
76 | fDeltaTheta((fThetamax-fThetamin)/fNbintheta), | |
77 | fNbinphi(10), | |
78 | fPhimin(-180.), | |
79 | fPhimax(180.), | |
80 | fDeltaPhi((fPhimax-fPhimin)/fNbinphi), | |
81 | fPrintLevel(1), | |
82 | fBkg(0.), | |
83 | fSpline(0), | |
84 | fClusterFinder(kOld) | |
041f7f97 | 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 | ||
ffed2f34 | 102 | AliMUONFastTracking::AliMUONFastTracking(): |
103 | fNbinp(10), | |
104 | fPmin(0.), | |
105 | fPmax(200.), | |
106 | fDeltaP((fPmax-fPmin)/fNbinp), | |
107 | fNbintheta(10), | |
108 | fThetamin(2.), | |
109 | fThetamax(9.), | |
110 | fDeltaTheta((fThetamax-fThetamin)/fNbintheta), | |
111 | fNbinphi(10), | |
112 | fPhimin(-180.), | |
113 | fPhimax(180.), | |
114 | fDeltaPhi((fPhimax-fPhimin)/fNbinphi), | |
115 | fPrintLevel(1), | |
116 | fBkg(0.), | |
117 | fSpline(0), | |
118 | fClusterFinder(kOld) | |
6255180c | 119 | { |
041f7f97 | 120 | // |
121 | // constructor | |
122 | // | |
1e68a0c5 | 123 | for (Int_t i = 0; i<20;i++) { |
124 | for (Int_t j = 0; j<20; j++) { | |
125 | for (Int_t k = 0; k<20; k++) { | |
126 | fFitp[i][j][k] = 0x0; | |
127 | } | |
128 | } | |
129 | } | |
6255180c | 130 | } |
131 | ||
132 | void AliMUONFastTracking::Init(Float_t bkg) | |
133 | { | |
134 | // | |
135 | // Initialization | |
136 | // | |
137 | for (Int_t ip=0; ip< fNbinp; ip++){ | |
138 | for (Int_t itheta=0; itheta< fNbintheta; itheta++){ | |
139 | for (Int_t iphi=0; iphi< fNbinphi; iphi++){ | |
140 | fCurrentEntry[ip][itheta][iphi] = new AliMUONFastTrackingEntry; | |
141 | for (Int_t ibkg=0; ibkg<4; ibkg++){ | |
142 | fEntry[ip][itheta][iphi][ibkg] = new AliMUONFastTrackingEntry; | |
143 | } | |
144 | } | |
145 | } | |
146 | } | |
147 | ||
148 | char filename [100]; | |
bae6da3c | 149 | if (fClusterFinder==kOld) snprintf (filename, 100, "$(ALICE_ROOT)/FASTSIM/data/MUONtrackLUT.root"); |
150 | else snprintf (filename, 100, "$(ALICE_ROOT)/FASTSIM/data/MUONtrackLUT-AZ.root"); | |
d53fc881 | 151 | |
6255180c | 152 | TFile *file = new TFile(filename); |
153 | ReadLUT(file); | |
154 | SetBackground(bkg); | |
d53fc881 | 155 | UseSpline(0); |
6255180c | 156 | } |
157 | ||
158 | ||
159 | void AliMUONFastTracking::ReadLUT(TFile* file) | |
160 | { | |
041f7f97 | 161 | // |
162 | // read the lookup tables from file | |
163 | // | |
6255180c | 164 | TH3F *heff[5][3], *hacc[5][3], *hmeanp, *hsigmap, *hsigma1p, *hchi2p; |
165 | TH3F *hnormg2, *hmeang2, *hsigmag2, *hmeantheta, *hsigmatheta, *hchi2theta; | |
166 | TH3F *hmeanphi, *hsigmaphi, *hchi2phi; | |
167 | char tag[40], tag2[40]; | |
168 | ||
d53fc881 | 169 | printf ("Reading parameters from LUT file %s...\n",file->GetName()); |
170 | ||
041f7f97 | 171 | const Float_t kBkg[4] = {0, 0.5, 1, 2}; |
6255180c | 172 | for (Int_t ibkg=0; ibkg<4; ibkg++) { |
bae6da3c | 173 | snprintf (tag, 40, "BKG%g",kBkg[ibkg]); |
6255180c | 174 | file->cd(tag); |
175 | for (Int_t isplp = 0; isplp<kSplitP; isplp++) { | |
176 | for (Int_t ispltheta = 0; ispltheta<kSplitTheta; ispltheta++) { | |
bae6da3c | 177 | snprintf (tag2, 40, "heff[%d][%d]",isplp,ispltheta); |
6255180c | 178 | heff[isplp][ispltheta] = (TH3F*)gDirectory->Get(tag2); |
bae6da3c | 179 | snprintf (tag2, 40, "hacc[%d][%d]",isplp,ispltheta); |
6255180c | 180 | hacc[isplp][ispltheta] = (TH3F*)gDirectory->Get(tag2); |
181 | } | |
182 | } | |
183 | hmeanp = (TH3F*)gDirectory->Get("hmeanp"); | |
184 | hsigmap = (TH3F*)gDirectory->Get("hsigmap"); | |
185 | hsigma1p = (TH3F*)gDirectory->Get("hsigma1p"); | |
186 | hchi2p = (TH3F*)gDirectory->Get("hchi2p"); | |
187 | hnormg2 = (TH3F*)gDirectory->Get("hnormg2"); | |
188 | hmeang2 = (TH3F*)gDirectory->Get("hmeang2"); | |
189 | hsigmag2 = (TH3F*)gDirectory->Get("hsigmag2"); | |
190 | hmeantheta = (TH3F*)gDirectory->Get("hmeantheta"); | |
191 | hsigmatheta = (TH3F*)gDirectory->Get("hsigmatheta"); | |
192 | hchi2theta = (TH3F*)gDirectory->Get("hchi2theta"); | |
193 | hmeanphi = (TH3F*)gDirectory->Get("hmeanphi"); | |
194 | hsigmaphi = (TH3F*)gDirectory->Get("hsigmaphi"); | |
195 | hchi2phi = (TH3F*)gDirectory->Get("hchi2phi"); | |
196 | ||
6255180c | 197 | for (Int_t ip=0; ip<fNbinp ;ip++) { |
198 | for (Int_t itheta=0; itheta<fNbintheta ;itheta++) { | |
199 | for (Int_t iphi=0; iphi<fNbinphi ;iphi++) { | |
200 | Float_t p = fPmin + fDeltaP * (ip + 0.5); | |
201 | Float_t theta = fThetamin + fDeltaTheta * (itheta + 0.5); | |
202 | Float_t phi = fPhimin + fDeltaPhi * (iphi + 0.5); | |
203 | ||
4ef9f58b | 204 | fEntry[ip][itheta][iphi][ibkg]->SetP(p); |
205 | fEntry[ip][itheta][iphi][ibkg]->SetMeanp(hmeanp->GetBinContent(ip+1,itheta+1,iphi+1)); | |
206 | fEntry[ip][itheta][iphi][ibkg]->SetSigmap(TMath::Abs(hsigmap->GetBinContent(ip+1,itheta+1,iphi+1))); | |
207 | fEntry[ip][itheta][iphi][ibkg]->SetSigma1p(hsigma1p->GetBinContent(ip+1,itheta+1,iphi+1)); | |
208 | fEntry[ip][itheta][iphi][ibkg]->SetChi2p(hchi2p->GetBinContent(ip+1,itheta+1,iphi+1)); | |
209 | fEntry[ip][itheta][iphi][ibkg]->SetNormG2(hnormg2->GetBinContent(ip+1,itheta+1,iphi+1)); | |
210 | fEntry[ip][itheta][iphi][ibkg]->SetMeanG2(hmeang2->GetBinContent(ip+1,itheta+1,iphi+1)); | |
211 | if (ibkg == 0) fEntry[ip][itheta][iphi][ibkg]->SetSigmaG2(9999); | |
212 | else fEntry[ip][itheta][iphi][ibkg]->SetSigmaG2(hsigmag2->GetBinContent(ip+1,itheta+1,iphi+1)); | |
213 | fEntry[ip][itheta][iphi][ibkg]->SetTheta(theta); | |
214 | fEntry[ip][itheta][iphi][ibkg]->SetMeantheta(hmeantheta->GetBinContent(ip+1,itheta+1,iphi+1)); | |
215 | fEntry[ip][itheta][iphi][ibkg]->SetSigmatheta(TMath::Abs(hsigmatheta->GetBinContent(ip+1,itheta+1,iphi+1))); | |
216 | fEntry[ip][itheta][iphi][ibkg]->SetChi2theta(hchi2theta->GetBinContent(ip+1,itheta+1,iphi+1)); | |
217 | fEntry[ip][itheta][iphi][ibkg]->SetPhi(phi); | |
218 | fEntry[ip][itheta][iphi][ibkg]->SetMeanphi(hmeanphi->GetBinContent(ip+1,itheta+1,iphi+1)); | |
219 | fEntry[ip][itheta][iphi][ibkg]->SetSigmaphi(TMath::Abs(hsigmaphi->GetBinContent(ip+1,itheta+1,iphi+1))); | |
220 | fEntry[ip][itheta][iphi][ibkg]->SetChi2phi(hchi2phi->GetBinContent(ip+1,itheta+1,iphi+1)); | |
6255180c | 221 | for (Int_t i=0; i<kSplitP; i++) { |
222 | for (Int_t j=0; j<kSplitTheta; j++) { | |
4ef9f58b | 223 | fEntry[ip][itheta][iphi][ibkg]->SetAcc(i,j,hacc[i][j]->GetBinContent(ip+1,itheta+1,iphi+1)); |
224 | fEntry[ip][itheta][iphi][ibkg]->SetEff(i,j,heff[i][j]->GetBinContent(ip+1,itheta+1,iphi+1)); | |
6255180c | 225 | } |
226 | } | |
227 | } // iphi | |
228 | } // itheta | |
229 | } // ip | |
230 | } // ibkg | |
231 | ||
232 | TGraph *graph = new TGraph(3); | |
233 | TF1 *f = new TF1("f","[0]+[1]*x"); | |
234 | ||
235 | for (Int_t ip=0; ip< fNbinp; ip++){ | |
236 | for (Int_t itheta=0; itheta< fNbintheta; itheta++){ | |
237 | for (Int_t iphi=0; iphi< fNbinphi; iphi++){ | |
4ef9f58b | 238 | graph->SetPoint(0,0.5,fEntry[ip][itheta][iphi][1]->GetSigmaG2()); |
239 | graph->SetPoint(1,1,fEntry[ip][itheta][iphi][2]->GetSigmaG2()); | |
240 | graph->SetPoint(2,2,fEntry[ip][itheta][iphi][3]->GetSigmaG2()); | |
6255180c | 241 | graph->Fit("f","q"); |
4ef9f58b | 242 | fEntry[ip][itheta][iphi][0]->SetSigmaG2(f->Eval(0)); |
6255180c | 243 | } |
244 | } | |
245 | } | |
246 | f->Delete(); | |
247 | graph->Delete(); | |
248 | printf ("parameters read. \n"); | |
249 | } | |
250 | ||
251 | void AliMUONFastTracking::GetBinning(Int_t &nbinp, Float_t &pmin, Float_t &pmax, | |
252 | Int_t &nbintheta, Float_t &thetamin, | |
253 | Float_t &thetamax, | |
041f7f97 | 254 | Int_t &nbinphi, Float_t &phimin, Float_t &phimax) const |
6255180c | 255 | { |
041f7f97 | 256 | // |
257 | // gets the binning for the discrete parametrizations in the lookup table | |
258 | // | |
6255180c | 259 | nbinp = fNbinp; |
260 | pmin = fPmin; | |
261 | pmax = fPmax; | |
262 | nbintheta = fNbintheta; | |
263 | thetamin = fThetamin; | |
264 | thetamax = fThetamax; | |
265 | nbinphi = fNbinphi; | |
266 | phimin = fPhimin; | |
267 | phimax = fPhimax; | |
268 | } | |
269 | ||
270 | ||
271 | void AliMUONFastTracking::GetIpIthetaIphi(Float_t p, Float_t theta, Float_t phi, | |
272 | Int_t charge, Int_t &ip, Int_t &itheta, | |
041f7f97 | 273 | Int_t &iphi) const |
6255180c | 274 | { |
041f7f97 | 275 | // |
276 | // gets the id of the cells in the LUT for a given (p,theta,phi, charge) | |
277 | // | |
6255180c | 278 | if (charge < 0) phi = -phi; |
279 | ip = Int_t (( p - fPmin ) / fDeltaP); | |
280 | itheta = Int_t (( theta - fThetamin ) / fDeltaTheta); | |
281 | iphi = Int_t (( phi - fPhimin ) / fDeltaPhi); | |
282 | ||
1e68a0c5 | 283 | |
d53fc881 | 284 | if (ip< 0) ip = 0; |
285 | if (ip>= fNbinp) ip = fNbinp-1; | |
286 | if (itheta< 0) itheta = 0; | |
287 | if (itheta>= fNbintheta) itheta = fNbintheta-1; | |
6255180c | 288 | |
d53fc881 | 289 | if (iphi< 0) iphi = 0; |
290 | if (iphi>= fNbinphi) iphi = fNbinphi-1; | |
6255180c | 291 | } |
292 | ||
293 | void AliMUONFastTracking::GetSplit(Int_t ip, Int_t itheta, | |
041f7f97 | 294 | Int_t &nSplitP, Int_t &nSplitTheta) const |
295 | { | |
296 | // | |
297 | // the first cell is splitted in more bins for theta and momentum | |
298 | // parameterizations. Get the number of divisions for the splitted bins | |
299 | // | |
6255180c | 300 | if (ip==0) nSplitP = 5; |
301 | else nSplitP = 2; | |
302 | if (itheta==0) nSplitTheta = 3; | |
303 | else nSplitTheta = 1; | |
304 | } | |
305 | ||
306 | Float_t AliMUONFastTracking::Efficiency(Float_t p, Float_t theta, | |
307 | Float_t phi, Int_t charge){ | |
041f7f97 | 308 | // |
309 | // gets the tracking efficiency | |
310 | // | |
6255180c | 311 | Int_t ip=0, itheta=0, iphi=0; |
312 | GetIpIthetaIphi(p,theta,phi,charge,ip,itheta,iphi); | |
313 | Int_t nSplitP, nSplitTheta; | |
314 | GetSplit(ip,itheta,nSplitP,nSplitTheta); | |
315 | ||
316 | Float_t dp = p - fPmin; | |
317 | Int_t ibinp = Int_t(nSplitP*(dp - fDeltaP * Int_t(dp / fDeltaP))/fDeltaP); | |
318 | Float_t dtheta = theta - fThetamin; | |
319 | Int_t ibintheta = Int_t(nSplitTheta*(dtheta - fDeltaTheta * Int_t(dtheta / fDeltaTheta))/fDeltaTheta); | |
4ef9f58b | 320 | Float_t eff = fCurrentEntry[ip][itheta][iphi]->GetEff(ibinp,ibintheta); |
6255180c | 321 | return eff; |
322 | } | |
323 | ||
324 | Float_t AliMUONFastTracking::Acceptance(Float_t p, Float_t theta, | |
325 | Float_t phi, Int_t charge){ | |
041f7f97 | 326 | // |
327 | // gets the geometrical acceptance | |
328 | // | |
6255180c | 329 | if (theta<fThetamin || theta>fThetamax) return 0; |
330 | ||
331 | Int_t ip=0, itheta=0, iphi=0; | |
332 | GetIpIthetaIphi(p,theta,phi,charge,ip,itheta,iphi); | |
333 | Int_t nSplitP, nSplitTheta; | |
334 | GetSplit(ip,itheta,nSplitP,nSplitTheta); | |
335 | // central value and corrections with spline | |
336 | ||
337 | Float_t dp = p - fPmin; | |
338 | Int_t ibinp = Int_t(nSplitP*(dp - fDeltaP * Int_t(dp / fDeltaP))/fDeltaP); | |
339 | Float_t dtheta = theta - fThetamin; | |
340 | Int_t ibintheta = Int_t(nSplitTheta*(dtheta - fDeltaTheta * Int_t(dtheta / fDeltaTheta))/fDeltaTheta); | |
4ef9f58b | 341 | Float_t acc = fCurrentEntry[ip][itheta][iphi]->GetAcc(ibinp,ibintheta); |
6255180c | 342 | return acc; |
343 | } | |
344 | ||
345 | Float_t AliMUONFastTracking::MeanP(Float_t p, Float_t theta, | |
041f7f97 | 346 | Float_t phi, Int_t charge) const |
6255180c | 347 | { |
041f7f97 | 348 | // |
349 | // gets the mean value of the prec-pgen distribution | |
350 | // | |
6255180c | 351 | Int_t ip=0, itheta=0, iphi=0; |
352 | GetIpIthetaIphi(p,theta,phi,charge,ip,itheta,iphi); | |
4ef9f58b | 353 | return fCurrentEntry[ip][itheta][iphi]->GetMeanp(); |
6255180c | 354 | } |
355 | ||
356 | Float_t AliMUONFastTracking::SigmaP(Float_t p, Float_t theta, | |
041f7f97 | 357 | Float_t phi, Int_t charge) const |
6255180c | 358 | { |
041f7f97 | 359 | // |
360 | // gets the width of the prec-pgen distribution | |
361 | // | |
6255180c | 362 | Int_t ip=0, itheta=0, iphi=0; |
363 | Int_t index; | |
364 | GetIpIthetaIphi(p,theta,phi,charge,ip,itheta,iphi); | |
365 | // central value and corrections with spline | |
4ef9f58b | 366 | Float_t sigmap = fCurrentEntry[ip][itheta][iphi]->GetSigmap(); |
6255180c | 367 | if (!fSpline) return sigmap; |
368 | // corrections vs p, theta, phi | |
369 | index = iphi + fNbinphi * itheta; | |
370 | Double_t xmin,ymin,xmax,ymax; | |
371 | Float_t frac1 = fSplineSigmap[index][0]->Eval(p)/sigmap; | |
372 | ||
373 | if (p>fPmax-fDeltaP/2.) { | |
4ef9f58b | 374 | Float_t s1 = fCurrentEntry[fNbinp-1][itheta][iphi]->GetSigmap(); |
375 | Float_t s2 = fCurrentEntry[fNbinp-2][itheta][iphi]->GetSigmap(); | |
376 | Float_t s3 = fCurrentEntry[fNbinp-3][itheta][iphi]->GetSigmap(); | |
6255180c | 377 | Float_t p1 = fDeltaP * (fNbinp - 1 + 0.5) + fPmin; |
378 | Float_t p2 = fDeltaP * (fNbinp - 2 + 0.5) + fPmin; | |
379 | Float_t p3 = fDeltaP * (fNbinp - 3 + 0.5) + fPmin; | |
380 | Float_t p12 = p1 * p1, p22 = p2 * p2, p32 = p3 * p3; | |
381 | Float_t d = p12*p2 + p1*p32 + p22*p3 - p32*p2 - p3*p12 - p22*p1; | |
382 | Float_t a = (s1*p2 + p1*s3 + s2*p3 - s3*p2 - p3*s1 - s2*p1) / d; | |
383 | Float_t b = (p12*s2 + s1*p32 + p22*s3 - p32*s2 - s3*p12 - p22*s1)/d; | |
384 | Float_t c = (p12*p2*s3 + p1*p32*s2 + p22*p3*s1 | |
385 | - p32*p2*s1 - p3*p12*s2 - p22*p1*s3) / d; | |
386 | Float_t sigma = a * p * p + b * p + c; | |
387 | frac1 = sigma/sigmap; | |
388 | } | |
389 | index = iphi + fNbinphi * ip; | |
390 | fSplineEff[index][1]->GetKnot(0,xmin,ymin); | |
391 | fSplineEff[index][1]->GetKnot(9,xmax,ymax); | |
392 | if (theta>xmax) theta = xmax; | |
393 | Float_t frac2 = fSplineSigmap[index][1]->Eval(theta)/sigmap; | |
394 | index = itheta + fNbintheta * ip; | |
395 | fSplineEff[index][2]->GetKnot(0,xmin,ymin); | |
396 | fSplineEff[index][2]->GetKnot(9,xmax,ymax); | |
397 | if (phi>xmax) phi = xmax; | |
398 | Float_t frac3 = fSplineSigmap[index][2]->Eval(phi)/sigmap; | |
399 | Float_t sigmatot = sigmap * frac1 * frac2 * frac3; | |
400 | if (sigmatot<0) sigmatot = sigmap; | |
401 | return sigmatot; | |
402 | } | |
403 | ||
404 | Float_t AliMUONFastTracking::Sigma1P(Float_t p, Float_t theta, | |
041f7f97 | 405 | Float_t phi, Int_t charge) const |
6255180c | 406 | { |
041f7f97 | 407 | // |
408 | // gets the width correction of the prec-pgen distribution (see FitP) | |
409 | // | |
6255180c | 410 | Int_t ip=0, itheta=0, iphi=0; |
411 | GetIpIthetaIphi(p,theta,phi,charge,ip,itheta,iphi); | |
412 | if (p>fPmax) { | |
413 | // linear extrapolation of sigmap for p out of range | |
4ef9f58b | 414 | Float_t s1 = fCurrentEntry[fNbinp-1][itheta][iphi]->GetSigma1p(); |
415 | Float_t s2 = fCurrentEntry[fNbinp-2][itheta][iphi]->GetSigma1p(); | |
6255180c | 416 | Float_t p1 = fDeltaP * (fNbinp - 1 + 0.5) + fPmin; |
417 | Float_t p2 = fDeltaP * (fNbinp - 2 + 0.5) + fPmin; | |
418 | Float_t sigma = 1./(p1-p2) * ( (s1-s2)*p + (s2-s1)*p1 + s1*(p1-p2) ); | |
419 | return sigma; | |
420 | } | |
4ef9f58b | 421 | else return fCurrentEntry[ip][itheta][iphi]->GetSigma1p(); |
6255180c | 422 | } |
423 | ||
424 | Float_t AliMUONFastTracking::NormG2(Float_t p, Float_t theta, | |
041f7f97 | 425 | Float_t phi, Int_t charge) const |
6255180c | 426 | { |
041f7f97 | 427 | // |
428 | // gets the relative normalization of the background | |
429 | // (gaussian) component in the prec-pgen distribution | |
430 | // | |
6255180c | 431 | Int_t ip=0, itheta=0, iphi=0; |
432 | GetIpIthetaIphi(p,theta,phi,charge,ip,itheta,iphi); | |
433 | if (p>fPmax) { | |
434 | // linear extrapolation of sigmap for p out of range | |
4ef9f58b | 435 | Float_t s1 = fCurrentEntry[fNbinp-1][itheta][iphi]->GetNormG2(); |
436 | Float_t s2 = fCurrentEntry[fNbinp-2][itheta][iphi]->GetNormG2(); | |
6255180c | 437 | Float_t p1 = fDeltaP * (fNbinp - 1 + 0.5) + fPmin; |
438 | Float_t p2 = fDeltaP * (fNbinp - 2 + 0.5) + fPmin; | |
439 | Float_t norm = 1./(p1-p2) * ( (s1-s2)*p + (s2-s1)*p1 + s1*(p1-p2) ); | |
440 | return norm; | |
441 | } | |
4ef9f58b | 442 | else return fCurrentEntry[ip][itheta][iphi]->GetNormG2(); |
6255180c | 443 | } |
444 | ||
445 | Float_t AliMUONFastTracking::MeanG2(Float_t p, Float_t theta, | |
041f7f97 | 446 | Float_t phi, Int_t charge) const |
6255180c | 447 | { |
041f7f97 | 448 | // |
449 | // gets the mean value of the background | |
450 | // (gaussian) component in the prec-pgen distribution | |
451 | // | |
6255180c | 452 | Int_t ip=0, itheta=0, iphi=0; |
453 | GetIpIthetaIphi(p,theta,phi,charge,ip,itheta,iphi); | |
454 | if (p>fPmax) { | |
455 | // linear extrapolation of sigmap for p out of range | |
4ef9f58b | 456 | Float_t s1 = fCurrentEntry[fNbinp-1][itheta][iphi]->GetMeanG2(); |
457 | Float_t s2 = fCurrentEntry[fNbinp-2][itheta][iphi]->GetMeanG2(); | |
6255180c | 458 | Float_t p1 = fDeltaP * (fNbinp - 1 + 0.5) + fPmin; |
459 | Float_t p2 = fDeltaP * (fNbinp - 2 + 0.5) + fPmin; | |
460 | Float_t norm = 1./(p1-p2) * ( (s1-s2)*p + (s2-s1)*p1 + s1*(p1-p2) ); | |
461 | return norm; | |
462 | } | |
4ef9f58b | 463 | else return fCurrentEntry[ip][itheta][iphi]->GetMeanG2(); |
6255180c | 464 | } |
465 | ||
466 | Float_t AliMUONFastTracking::SigmaG2(Float_t p, Float_t theta, | |
041f7f97 | 467 | Float_t phi, Int_t charge) const |
6255180c | 468 | { |
041f7f97 | 469 | // |
470 | // gets the width of the background | |
471 | // (gaussian) component in the prec-pgen distribution | |
472 | // | |
6255180c | 473 | Int_t ip=0, itheta=0, iphi=0; |
474 | GetIpIthetaIphi(p,theta,phi,charge,ip,itheta,iphi); | |
475 | if (p>fPmax) { | |
476 | // linear extrapolation of sigmap for p out of range | |
4ef9f58b | 477 | Float_t s1 = fCurrentEntry[fNbinp-1][itheta][iphi]->GetSigmaG2(); |
478 | Float_t s2 = fCurrentEntry[fNbinp-2][itheta][iphi]->GetSigmaG2(); | |
6255180c | 479 | Float_t p1 = fDeltaP * (fNbinp - 1 + 0.5) + fPmin; |
480 | Float_t p2 = fDeltaP * (fNbinp - 2 + 0.5) + fPmin; | |
481 | Float_t sigma = 1./(p1-p2) * ( (s1-s2)*p + (s2-s1)*p1 + s1*(p1-p2) ); | |
482 | return sigma; | |
483 | } | |
4ef9f58b | 484 | else return fCurrentEntry[ip][itheta][iphi]->GetSigmaG2(); |
6255180c | 485 | } |
486 | ||
487 | ||
488 | Float_t AliMUONFastTracking::MeanTheta(Float_t p, Float_t theta, | |
041f7f97 | 489 | Float_t phi, Int_t charge) const |
6255180c | 490 | { |
041f7f97 | 491 | // |
492 | // gets the mean value of the thetarec-thetagen distribution | |
493 | // | |
6255180c | 494 | Int_t ip=0, itheta=0, iphi=0; |
495 | GetIpIthetaIphi(p,theta,phi,charge,ip,itheta,iphi); | |
4ef9f58b | 496 | return fCurrentEntry[ip][itheta][iphi]->GetMeantheta(); |
6255180c | 497 | } |
498 | ||
041f7f97 | 499 | Float_t AliMUONFastTracking::SigmaTheta(Float_t p, Float_t theta, |
500 | Float_t phi, Int_t charge) const | |
501 | { | |
502 | // | |
503 | // gets the width of the thetarec-thetagen distribution | |
504 | // | |
6255180c | 505 | Int_t ip=0, itheta=0, iphi=0; |
506 | Int_t index; | |
507 | GetIpIthetaIphi(p,theta,phi,charge,ip,itheta,iphi); | |
508 | // central value and corrections with spline | |
4ef9f58b | 509 | Float_t sigmatheta = fCurrentEntry[ip][itheta][iphi]->GetSigmatheta(); |
6255180c | 510 | if (!fSpline) return sigmatheta; |
511 | // corrections vs p, theta, phi | |
512 | index = iphi + fNbinphi * itheta; | |
513 | Double_t xmin,ymin,xmax,ymax; | |
514 | Float_t frac1 = fSplineSigmatheta[index][0]->Eval(p)/sigmatheta; | |
515 | if (p>fPmax-fDeltaP/2.) { | |
516 | // linear extrapolation of sigmap for p out of range | |
4ef9f58b | 517 | Float_t s1 = fCurrentEntry[fNbinp-1][itheta][iphi]->GetSigmatheta(); |
518 | Float_t s2 = fCurrentEntry[fNbinp-2][itheta][iphi]->GetSigmatheta(); | |
6255180c | 519 | Float_t p1 = fDeltaP * (fNbinp - 1 + 0.5) + fPmin; |
520 | Float_t p2 = fDeltaP * (fNbinp - 2 + 0.5) + fPmin; | |
521 | Float_t sigma = 1./(p1-p2) * ( (s1-s2)*p + (s2-s1)*p1 + s1*(p1-p2) ); | |
522 | frac1=sigma/sigmatheta; | |
523 | } | |
524 | index = iphi + fNbinphi * ip; | |
525 | fSplineEff[index][1]->GetKnot(0,xmin,ymin); | |
526 | fSplineEff[index][1]->GetKnot(9,xmax,ymax); | |
527 | if (theta>xmax) theta = xmax; | |
528 | Float_t frac2 = fSplineSigmatheta[index][1]->Eval(theta)/sigmatheta; | |
529 | index = itheta + fNbintheta * ip; | |
530 | fSplineEff[index][2]->GetKnot(0,xmin,ymin); | |
531 | fSplineEff[index][2]->GetKnot(9,xmax,ymax); | |
532 | if (phi>xmax) phi = xmax; | |
533 | Float_t frac3 = fSplineSigmatheta[index][2]->Eval(phi)/sigmatheta; | |
534 | return sigmatheta * frac1 * frac2 * frac3; | |
535 | } | |
536 | ||
537 | ||
538 | Float_t AliMUONFastTracking::MeanPhi(Float_t p, Float_t theta, | |
041f7f97 | 539 | Float_t phi, Int_t charge) const |
540 | { | |
541 | // | |
542 | // gets the mean value of the phirec-phigen distribution | |
543 | // | |
6255180c | 544 | Int_t ip=0, itheta=0, iphi=0; |
545 | GetIpIthetaIphi(p,theta,phi,charge,ip,itheta,iphi); | |
4ef9f58b | 546 | return fCurrentEntry[ip][itheta][iphi]->GetMeanphi(); |
6255180c | 547 | } |
548 | ||
549 | Float_t AliMUONFastTracking::SigmaPhi(Float_t p, Float_t theta, | |
550 | Float_t phi, Int_t charge){ | |
041f7f97 | 551 | // |
552 | // gets the width of the phirec-phigen distribution | |
553 | // | |
6255180c | 554 | Int_t ip=0, itheta=0, iphi=0; |
555 | Int_t index; | |
556 | GetIpIthetaIphi(p,theta,phi,charge,ip,itheta,iphi); | |
557 | // central value and corrections with spline | |
4ef9f58b | 558 | Float_t sigmaphi = fCurrentEntry[ip][itheta][iphi]->GetSigmaphi(); |
6255180c | 559 | if (!fSpline) return sigmaphi; |
560 | // corrections vs p, theta, phi | |
561 | index = iphi + fNbinphi * itheta; | |
562 | Float_t frac1 = fSplineSigmaphi[index][0]->Eval(p)/sigmaphi; | |
563 | Double_t xmin,ymin,xmax,ymax; | |
564 | if (p>fPmax-fDeltaP/2.) { | |
4ef9f58b | 565 | Float_t s1 = fCurrentEntry[fNbinp-1][itheta][iphi]->GetSigmaphi(); |
566 | Float_t s2 = fCurrentEntry[fNbinp-2][itheta][iphi]->GetSigmaphi(); | |
6255180c | 567 | Float_t p1 = fDeltaP * (fNbinp - 1 + 0.5) + fPmin; |
568 | Float_t p2 = fDeltaP * (fNbinp - 2 + 0.5) + fPmin; | |
569 | Float_t sigma = 1./(p1-p2) * ( (s1-s2)*p + (s2-s1)*p1 + s1*(p1-p2) ); | |
570 | frac1 = sigma/sigmaphi; | |
571 | } | |
572 | ||
573 | index = iphi + fNbinphi * ip; | |
574 | fSplineEff[index][1]->GetKnot(0,xmin,ymin); | |
575 | fSplineEff[index][1]->GetKnot(9,xmax,ymax); | |
576 | if (theta>xmax) theta = xmax; | |
577 | Float_t frac2 = fSplineSigmaphi[index][1]->Eval(theta)/sigmaphi; | |
578 | index = itheta + fNbintheta * ip; | |
579 | fSplineEff[index][2]->GetKnot(0,xmin,ymin); | |
580 | fSplineEff[index][2]->GetKnot(9,xmax,ymax); | |
581 | if (phi>xmax) phi = xmax; | |
582 | Float_t frac3 = fSplineSigmaphi[index][2]->Eval(phi)/sigmaphi; | |
583 | return sigmaphi * frac1 * frac2 * frac3; | |
584 | } | |
585 | ||
586 | void AliMUONFastTracking::SetSpline(){ | |
041f7f97 | 587 | // |
588 | // sets the spline functions for a smooth behaviour of the parameters | |
589 | // when going from one cell to another | |
590 | // | |
6255180c | 591 | printf ("Setting spline functions..."); |
592 | char splname[40]; | |
593 | Double_t x[20][3]; | |
594 | Double_t x2[50][3]; | |
595 | Int_t nbins[3] = {fNbinp, fNbintheta, fNbinphi}; | |
596 | Double_t xspl[20],yeff[50],ysigmap[20],ysigma1p[20]; | |
597 | Double_t yacc[50], ysigmatheta[20],ysigmaphi[20]; | |
598 | Double_t xsp2[50]; | |
599 | // let's calculate the x axis for p, theta, phi | |
600 | ||
601 | Int_t i, ispline, ivar; | |
602 | for (i=0; i< fNbinp; i++) x[i][0] = fPmin + fDeltaP * (i + 0.5); | |
603 | for (i=0; i< fNbintheta; i++) x[i][1] = fThetamin + fDeltaTheta * (i + 0.5); | |
604 | for (i=0; i< fNbinphi; i++) x[i][2] = fPhimin + fDeltaPhi * (i + 0.5); | |
605 | ||
606 | for (i=0; i< 5 * fNbinp; i++) x2[i][0] = fPmin + fDeltaP * (i + 0.5)/5.; | |
607 | for (i=0; i< 5 * fNbintheta; i++) x2[i][1] = fThetamin + fDeltaTheta * (i + 0.5)/5.; | |
608 | for (i=0; i< 5 * fNbinphi; i++) x2[i][2] = fPhimin + fDeltaPhi * (i + 0.5)/5.; | |
609 | ||
610 | // splines in p | |
611 | ivar = 0; | |
612 | for (i=0; i<nbins[ivar]; i++) xspl[i] = x[i][ivar]; | |
613 | for (i=0; i<5 * nbins[ivar]; i++) xsp2[i] = x2[i][ivar]; | |
614 | ispline=0; | |
615 | for (Int_t itheta=0; itheta< fNbintheta; itheta++){ | |
616 | for (Int_t iphi=0; iphi< fNbinphi; iphi++){ | |
617 | for (Int_t ip=0; ip<fNbinp; ip++) { | |
4ef9f58b | 618 | ysigmap[ip] = fCurrentEntry[ip][itheta][iphi]->GetSigmap(); |
619 | ysigma1p[ip] = fCurrentEntry[ip][itheta][iphi]->GetSigma1p(); | |
620 | ysigmatheta[ip] = fCurrentEntry[ip][itheta][iphi]->GetSigmatheta(); | |
621 | ysigmaphi[ip] = fCurrentEntry[ip][itheta][iphi]->GetSigmaphi(); | |
6255180c | 622 | } |
623 | if (fPrintLevel>3) cout << " creating new spline " << splname << endl; | |
bae6da3c | 624 | snprintf (splname, 40, "fSplineEff[%d][%d]",ispline,ivar); |
6255180c | 625 | fSplineEff[ispline][ivar] = new TSpline3(splname,xsp2,yeff,5 * nbins[ivar]); |
bae6da3c | 626 | snprintf (splname, 40, "fSplineAcc[%d][%d]",ispline,ivar); |
6255180c | 627 | fSplineAcc[ispline][ivar] = new TSpline3(splname,xsp2,yacc,5 * nbins[ivar]); |
bae6da3c | 628 | snprintf (splname, 40, "fSplineSigmap[%d][%d]",ispline,ivar); |
6255180c | 629 | fSplineSigmap[ispline][ivar] = new TSpline3(splname,xspl,ysigmap,nbins[ivar]); |
bae6da3c | 630 | snprintf (splname, 40, "fSplineSigma1p[%d][%d]",ispline,ivar); |
6255180c | 631 | fSplineSigma1p[ispline][ivar] = new TSpline3(splname,xspl,ysigma1p,nbins[ivar]); |
bae6da3c | 632 | snprintf (splname, 40, "fSplineSigmatheta[%d][%d]",ispline,ivar); |
6255180c | 633 | fSplineSigmatheta[ispline][ivar] = new TSpline3(splname,xspl,ysigmatheta,nbins[ivar]); |
bae6da3c | 634 | snprintf (splname, 40, "fSplineSigmaphi[%d][%d]",ispline,ivar); |
6255180c | 635 | fSplineSigmaphi[ispline][ivar] = new TSpline3(splname,xspl,ysigmaphi,nbins[ivar]); |
636 | ispline++; | |
637 | } | |
638 | } | |
639 | ||
640 | ivar = 1; | |
641 | for (i=0; i<nbins[ivar]; i++) xspl[i] = x[i][ivar]; | |
642 | ispline=0; | |
643 | for (Int_t ip=0; ip<fNbinp; ip++) { | |
644 | for (Int_t iphi=0; iphi< fNbinphi; iphi++){ | |
645 | for (Int_t itheta=0; itheta< fNbintheta; itheta++){ | |
646 | // for efficiency and acceptance let's take the central value | |
4ef9f58b | 647 | ysigmap[itheta] = fCurrentEntry[ip][itheta][iphi]->GetSigmap(); |
648 | ysigma1p[itheta] = fCurrentEntry[ip][itheta][iphi]->GetSigma1p(); | |
649 | ysigmatheta[itheta] = fCurrentEntry[ip][itheta][iphi]->GetSigmatheta(); | |
650 | ysigmaphi[itheta] = fCurrentEntry[ip][itheta][iphi]->GetSigmaphi(); | |
6255180c | 651 | } |
652 | if (fPrintLevel>3) cout << " creating new spline " << splname << endl; | |
bae6da3c | 653 | snprintf (splname, 40, "fSplineEff[%d][%d]",ispline,ivar); |
6255180c | 654 | fSplineEff[ispline][ivar] = new TSpline3(splname,xspl,yeff, nbins[ivar]); |
bae6da3c | 655 | snprintf (splname, 40, "fSplineAcc[%d][%d]",ispline,ivar); |
6255180c | 656 | fSplineAcc[ispline][ivar] = new TSpline3(splname,xspl,yacc, nbins[ivar]); |
bae6da3c | 657 | snprintf (splname, 40, "fSplineSigmap[%d][%d]",ispline,ivar); |
6255180c | 658 | fSplineSigmap[ispline][ivar] = new TSpline3(splname,xspl,ysigmap,nbins[ivar]); |
bae6da3c | 659 | snprintf (splname, 40, "fSplineSigma1p[%d][%d]",ispline,ivar); |
6255180c | 660 | fSplineSigma1p[ispline][ivar] = new TSpline3(splname,xspl,ysigma1p,nbins[ivar]); |
bae6da3c | 661 | snprintf (splname, 40, "fSplineSigmatheta[%d][%d]",ispline,ivar); |
6255180c | 662 | fSplineSigmatheta[ispline][ivar] = new TSpline3(splname,xspl,ysigmatheta,nbins[ivar]); |
bae6da3c | 663 | snprintf (splname, 40, "fSplineSigmaphi[%d][%d]",ispline,ivar); |
6255180c | 664 | fSplineSigmaphi[ispline][ivar] = new TSpline3(splname,xspl,ysigmaphi,nbins[ivar]); |
665 | ispline++; | |
666 | } | |
667 | } | |
668 | ||
669 | ivar = 2; | |
670 | for (i=0; i<nbins[ivar]; i++) xspl[i] = x[i][ivar]; | |
671 | ispline=0; | |
672 | for (Int_t ip=0; ip<fNbinp; ip++) { | |
673 | for (Int_t itheta=0; itheta< fNbintheta; itheta++){ | |
674 | for (Int_t iphi=0; iphi< fNbinphi; iphi++){ | |
675 | // for efficiency and acceptance let's take the central value | |
4ef9f58b | 676 | ysigmap[iphi] = fCurrentEntry[ip][itheta][iphi]->GetSigmap(); |
677 | ysigma1p[iphi] = fCurrentEntry[ip][itheta][iphi]->GetSigma1p(); | |
678 | ysigmatheta[iphi] = fCurrentEntry[ip][itheta][iphi]->GetSigmatheta(); | |
679 | ysigmaphi[iphi] = fCurrentEntry[ip][itheta][iphi]->GetSigmaphi(); | |
6255180c | 680 | } |
681 | if (fPrintLevel>3) cout << " creating new spline " << splname << endl; | |
bae6da3c | 682 | snprintf (splname, 40, "fSplineEff[%d][%d]",ispline,ivar); |
6255180c | 683 | fSplineEff[ispline][ivar] = new TSpline3(splname,xspl,yeff, nbins[ivar]); |
bae6da3c | 684 | snprintf (splname, 40, "fSplineAcc[%d][%d]",ispline,ivar); |
6255180c | 685 | fSplineAcc[ispline][ivar] = new TSpline3(splname,xspl,yacc, nbins[ivar]); |
bae6da3c | 686 | snprintf (splname, 40, "fSplineSigmap[%d][%d]",ispline,ivar); |
6255180c | 687 | fSplineSigmap[ispline][ivar] = new TSpline3(splname,xspl,ysigmap,nbins[ivar]); |
bae6da3c | 688 | snprintf (splname, 40, "fSplineSigma1p[%d][%d]",ispline,ivar); |
6255180c | 689 | fSplineSigma1p[ispline][ivar] = new TSpline3(splname,xspl,ysigma1p,nbins[ivar]); |
bae6da3c | 690 | snprintf (splname, 40, "fSplineSigmatheta[%d][%d]",ispline,ivar); |
6255180c | 691 | fSplineSigmatheta[ispline][ivar] = new TSpline3(splname,xspl,ysigmatheta,nbins[ivar]); |
bae6da3c | 692 | snprintf (splname, 40, "fSplineSigmaphi[%d][%d]",ispline,ivar); |
6255180c | 693 | fSplineSigmaphi[ispline][ivar] = new TSpline3(splname,xspl,ysigmaphi,nbins[ivar]); |
694 | ispline++; | |
695 | } | |
696 | } | |
697 | printf ("...done\n"); | |
698 | } | |
699 | ||
6255180c | 700 | void AliMUONFastTracking::SetBackground(Float_t bkg){ |
041f7f97 | 701 | // |
6255180c | 702 | // linear interpolation of the parameters in the LUT between 2 values where |
703 | // the background has been actually calculated | |
041f7f97 | 704 | // |
6255180c | 705 | if (bkg>2) printf ("WARNING: unsafe extrapolation!\n"); |
706 | fBkg = bkg; | |
707 | ||
041f7f97 | 708 | Float_t bkgLevel[4] = {0, 0.5, 1, 2}; // bkg values for which LUT is calculated |
6255180c | 709 | Int_t ibkg; |
041f7f97 | 710 | for (ibkg=0; ibkg<4; ibkg++) if ( bkg < bkgLevel[ibkg]) break; |
6255180c | 711 | if (ibkg == 4) ibkg--; |
712 | if (ibkg == 0) ibkg++; | |
713 | ||
041f7f97 | 714 | Float_t x0 = bkgLevel[ibkg-1]; |
715 | Float_t x1 = bkgLevel[ibkg]; | |
6255180c | 716 | Float_t x = (bkg - x0) / (x1 - x0); |
717 | ||
718 | Float_t y0, y1; | |
719 | ||
720 | for (Int_t ip=0; ip< fNbinp; ip++){ | |
721 | for (Int_t itheta=0; itheta< fNbintheta; itheta++){ | |
722 | for (Int_t iphi=0; iphi< fNbinphi; iphi++){ | |
4ef9f58b | 723 | fCurrentEntry[ip][itheta][iphi]->SetP(fEntry[ip][itheta][iphi][ibkg]->GetP()); |
724 | fCurrentEntry[ip][itheta][iphi]->SetTheta(fEntry[ip][itheta][iphi][ibkg]->GetTheta()); | |
725 | fCurrentEntry[ip][itheta][iphi]->SetPhi(fEntry[ip][itheta][iphi][ibkg]->GetPhi()); | |
726 | fCurrentEntry[ip][itheta][iphi]->SetChi2p(-1); | |
727 | fCurrentEntry[ip][itheta][iphi]->SetChi2theta(-1); | |
728 | fCurrentEntry[ip][itheta][iphi]->SetChi2phi(-1); | |
729 | ||
730 | y0 = fEntry[ip][itheta][iphi][ibkg-1]->GetMeanp(); | |
731 | y1 = fEntry[ip][itheta][iphi][ibkg]->GetMeanp(); | |
732 | fCurrentEntry[ip][itheta][iphi] ->SetMeanp((y1 - y0) * x + y0); | |
733 | y0 = fEntry[ip][itheta][iphi][ibkg-1]->GetMeantheta(); | |
734 | y1 = fEntry[ip][itheta][iphi][ibkg]->GetMeantheta(); | |
735 | fCurrentEntry[ip][itheta][iphi] ->SetMeantheta((y1 - y0) * x +y0); | |
736 | y0 = fEntry[ip][itheta][iphi][ibkg-1]->GetMeanphi(); | |
737 | y1 = fEntry[ip][itheta][iphi][ibkg]->GetMeanphi(); | |
738 | fCurrentEntry[ip][itheta][iphi] ->SetMeanphi((y1 - y0) * x + y0); | |
739 | y0 = fEntry[ip][itheta][iphi][ibkg-1]->GetSigmap(); | |
740 | y1 = fEntry[ip][itheta][iphi][ibkg]->GetSigmap(); | |
741 | fCurrentEntry[ip][itheta][iphi] ->SetSigmap((y1 - y0) * x + y0); | |
742 | y0 = fEntry[ip][itheta][iphi][ibkg-1]->GetSigmatheta(); | |
743 | y1 = fEntry[ip][itheta][iphi][ibkg]->GetSigmatheta(); | |
744 | fCurrentEntry[ip][itheta][iphi] ->SetSigmatheta((y1 - y0) * x+y0); | |
745 | y0 = fEntry[ip][itheta][iphi][ibkg-1]->GetSigmaphi(); | |
746 | y1 = fEntry[ip][itheta][iphi][ibkg]->GetSigmaphi(); | |
747 | fCurrentEntry[ip][itheta][iphi] ->SetSigmaphi((y1 - y0) * x + y0); | |
748 | y0 = fEntry[ip][itheta][iphi][ibkg-1]->GetSigma1p(); | |
749 | y1 = fEntry[ip][itheta][iphi][ibkg]->GetSigma1p(); | |
750 | fCurrentEntry[ip][itheta][iphi] ->SetSigma1p((y1 - y0) * x + y0); | |
751 | y0 = fEntry[ip][itheta][iphi][ibkg-1]->GetNormG2(); | |
752 | y1 = fEntry[ip][itheta][iphi][ibkg]->GetNormG2(); | |
753 | fCurrentEntry[ip][itheta][iphi] ->SetNormG2((y1 - y0) * x + y0); | |
754 | y0 = fEntry[ip][itheta][iphi][ibkg-1]->GetMeanG2(); | |
755 | y1 = fEntry[ip][itheta][iphi][ibkg]->GetMeanG2(); | |
756 | fCurrentEntry[ip][itheta][iphi] ->SetMeanG2((y1 - y0) * x + y0); | |
6255180c | 757 | |
4ef9f58b | 758 | y0 = fEntry[ip][itheta][iphi][ibkg-1]->GetSigmaG2(); |
759 | y1 = fEntry[ip][itheta][iphi][ibkg]->GetSigmaG2(); | |
760 | fCurrentEntry[ip][itheta][iphi] ->SetSigmaG2((y1 - y0) * x + y0); | |
6255180c | 761 | for (Int_t i=0; i<kSplitP; i++) { |
762 | for (Int_t j=0; j<kSplitTheta; j++) { | |
4ef9f58b | 763 | fCurrentEntry[ip][itheta][iphi]->SetAcc(i,j,fEntry[ip][itheta][iphi][ibkg]->GetAcc(i,j)); |
764 | y0 = fEntry[ip][itheta][iphi][ibkg-1]->GetEff(i,j); | |
765 | y1 = fEntry[ip][itheta][iphi][ibkg]->GetEff(i,j); | |
766 | fCurrentEntry[ip][itheta][iphi]->SetEff(i,j, (y1 - y0) * x + y0); | |
6255180c | 767 | } |
768 | } | |
769 | } | |
770 | } | |
771 | } | |
772 | SetSpline(); | |
773 | } | |
774 | ||
d53fc881 | 775 | TF1* AliMUONFastTracking::GetFitP(Int_t ip,Int_t itheta,Int_t iphi) { |
041f7f97 | 776 | // gets the correct prec-pgen distribution for a given LUT cell |
c6ba3ff4 | 777 | if (!fFitp[ip][itheta][iphi]) { |
778 | char name[256]; | |
bae6da3c | 779 | snprintf(name, 256, "fit_%d_%d_%d", ip, itheta, iphi); |
c6ba3ff4 | 780 | fFitp[ip][itheta][iphi] = new TF1(name ,FitP,-20.,20.,6); |
d53fc881 | 781 | fFitp[ip][itheta][iphi]->SetNpx(500); |
1e68a0c5 | 782 | fFitp[ip][itheta][iphi]->SetParameters(0.,0.,0.,0.,0.,0.); |
d53fc881 | 783 | } |
784 | return fFitp[ip][itheta][iphi]; | |
785 | } | |
6255180c | 786 | |
041f7f97 | 787 | AliMUONFastTracking& AliMUONFastTracking::operator=(const AliMUONFastTracking& rhs) |
788 | { | |
789 | // Assignment operator | |
790 | rhs.Copy(*this); | |
791 | return *this; | |
792 | } | |
793 | ||
15a060e4 | 794 | void AliMUONFastTracking::Copy(TObject&) const |
041f7f97 | 795 | { |
796 | // | |
797 | // Copy | |
798 | // | |
799 | Fatal("Copy","Not implemented!\n"); | |
800 | } | |
6255180c | 801 | |
802 | ||
803 | ||
804 | ||
805 | ||
806 | ||
807 | ||
808 |