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c1076715 | 1 | /************************************************************************** |
2 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
3 | * * | |
4 | * Author: The ALICE Off-line Project. * | |
5 | * Contributors are mentioned in the code where appropriate. * | |
6 | * * | |
7 | * Permission to use, copy, modify and distribute this software and its * | |
8 | * documentation strictly for non-commercial purposes is hereby granted * | |
9 | * without fee, provided that the above copyright notice appears in all * | |
10 | * copies and that both the copyright notice and this permission notice * | |
11 | * appear in the supporting documentation. The authors make no claims * | |
12 | * about the suitability of this software for any purpose. It is * | |
13 | * provided "as is" without express or implied warranty. * | |
14 | **************************************************************************/ | |
15 | ||
16 | /* | |
17 | $Log$ | |
9c77ea58 | 18 | Revision 1.16 2001/10/23 13:03:35 hristov |
19 | The access to several data members was changed from public to protected. The digitisation was adapted to the multi-event case (J.Chudoba) | |
20 | ||
6e585aa2 | 21 | Revision 1.15 2001/10/21 18:31:23 hristov |
22 | Several pointers were set to zero in the default constructors to avoid memory management problems | |
23 | ||
2685bf00 | 24 | Revision 1.14 2001/05/14 13:25:54 hristov |
25 | stdlib.h included (for Alpha) | |
26 | ||
29803c51 | 27 | Revision 1.13 2001/05/10 12:26:31 jbarbosa |
28 | Totally reworked version of reconstruction algorithm. | |
29 | ||
ac6e04fc | 30 | Revision 1.12 2001/02/27 22:15:03 jbarbosa |
31 | Removed compiler warning. | |
32 | ||
2966f600 | 33 | Revision 1.11 2001/02/27 15:21:46 jbarbosa |
34 | Transition to SDigits. | |
35 | ||
b251a2b5 | 36 | Revision 1.10 2001/02/13 20:39:06 jbarbosa |
37 | Changes to make it work with new IO. | |
38 | ||
a5886574 | 39 | Revision 1.9 2001/01/22 21:39:11 jbarbosa |
40 | Several tune-ups | |
41 | ||
eb1ee126 | 42 | Revision 1.8 2000/11/15 15:52:53 jbarbosa |
43 | Turned on spot algorithm. | |
44 | ||
ceccff49 | 45 | Revision 1.7 2000/11/01 15:37:05 jbarbosa |
46 | Updated to use its own rec. point object. | |
47 | ||
4a5c8776 | 48 | Revision 1.6 2000/10/02 21:28:12 fca |
49 | Removal of useless dependecies via forward declarations | |
50 | ||
94de3818 | 51 | Revision 1.5 2000/06/30 16:30:28 dibari |
52 | Disabled writing to rechits. | |
53 | ||
a366fdbe | 54 | Revision 1.4 2000/06/15 15:46:59 jbarbosa |
55 | Corrected compilation errors on HP-UX (replaced pow with TMath::Power) | |
56 | ||
00df6e79 | 57 | Revision 1.3 2000/06/13 13:15:41 jbarbosa |
58 | Still some code cleanup done (variable names) | |
59 | ||
3a3df9e3 | 60 | Revision 1.2 2000/06/12 15:19:30 jbarbosa |
61 | Cleaned up version. | |
62 | ||
237c933d | 63 | Revision 1.1 2000/04/19 13:05:14 morsch |
64 | J. Barbosa's spot reconstruction algorithm. | |
65 | ||
c1076715 | 66 | */ |
67 | ||
29803c51 | 68 | #include <stdlib.h> |
69 | ||
c1076715 | 70 | |
71 | #include "AliRICH.h" | |
72 | #include "AliRICHPoints.h" | |
73 | #include "AliRICHDetect.h" | |
237c933d | 74 | #include "AliRICHHit.h" |
75 | #include "AliRICHDigit.h" | |
9c77ea58 | 76 | #include "AliRICHRawCluster.h" |
77 | #include "AliRICHCerenkov.h" | |
ac6e04fc | 78 | #include "AliRICHSegmentationV0.h" |
c1076715 | 79 | #include "AliRun.h" |
80 | #include "TParticle.h" | |
94de3818 | 81 | #include "TTree.h" |
c1076715 | 82 | #include "TMath.h" |
83 | #include "TRandom.h" | |
ac6e04fc | 84 | #include "TH3.h" |
85 | #include "TH2.h" | |
86 | #include "TCanvas.h" | |
9c77ea58 | 87 | #include <TStyle.h> |
88 | ||
c1076715 | 89 | |
ac6e04fc | 90 | #include "malloc.h" |
c1076715 | 91 | |
92 | ||
93 | ClassImp(AliRICHDetect) | |
94 | //___________________________________________ | |
95 | AliRICHDetect::AliRICHDetect() : TObject() | |
96 | { | |
237c933d | 97 | |
98 | // Default constructor | |
99 | ||
2685bf00 | 100 | fc1 = 0; |
101 | fc2 = 0; | |
102 | fc3 = 0; | |
103 | ||
c1076715 | 104 | } |
105 | ||
106 | //___________________________________________ | |
107 | AliRICHDetect::AliRICHDetect(const char *name, const char *title) | |
108 | : TObject() | |
109 | { | |
237c933d | 110 | |
9c77ea58 | 111 | TStyle *mystyle=new TStyle("Plain","mystyle"); |
112 | mystyle->SetPalette(1,0); | |
113 | mystyle->cd(); | |
114 | ||
ac6e04fc | 115 | |
116 | fc1= new TCanvas("c1","Reconstructed points",50,50,300,350); | |
117 | fc1->Divide(2,2); | |
9c77ea58 | 118 | fc2= new TCanvas("c2","Reconstructed points after SPOT",370,50,300,350); |
ac6e04fc | 119 | fc2->Divide(2,2); |
9c77ea58 | 120 | fc3= new TCanvas("c3","Used Digits",690,50,300,350); |
121 | fc4= new TCanvas("c4","Mesh activation data",50,430,600,350); | |
122 | fc4->Divide(2,1); | |
123 | ||
ac6e04fc | 124 | |
125 | } | |
126 | ||
127 | //___________________________________________ | |
128 | AliRICHDetect::~AliRICHDetect() | |
129 | { | |
c1076715 | 130 | |
ac6e04fc | 131 | // Destructor |
132 | ||
c1076715 | 133 | } |
134 | ||
135 | ||
9c77ea58 | 136 | void AliRICHDetect::Detect(Int_t nev, Int_t type) |
c1076715 | 137 | { |
138 | ||
237c933d | 139 | // |
140 | // Detection algorithm | |
141 | ||
142 | ||
c1076715 | 143 | //printf("Detection started!\n"); |
9c77ea58 | 144 | Float_t omega,omega1,theta1,phi_relative,steptheta,stepphi,x,y,q=0,z,cx,cy,l,aux1,aux2,aux3,max,radius=0,meanradius=0; |
ac6e04fc | 145 | Int_t maxi,maxj,maxk; |
9c77ea58 | 146 | Float_t originalOmega, originalPhi, originalTheta; |
ac6e04fc | 147 | Float_t binomega, bintheta, binphi; |
148 | Int_t intomega, inttheta, intphi; | |
c1076715 | 149 | Int_t i,j,k; |
ac6e04fc | 150 | |
151 | AliRICH *pRICH = (AliRICH*)gAlice->GetDetector("RICH"); | |
152 | AliRICHSegmentationV0* segmentation; | |
153 | AliRICHChamber* iChamber; | |
154 | AliRICHGeometry* geometry; | |
155 | ||
156 | iChamber = &(pRICH->Chamber(0)); | |
157 | segmentation=(AliRICHSegmentationV0*) iChamber->GetSegmentationModel(0); | |
158 | geometry=iChamber->GetGeometryModel(); | |
ceccff49 | 159 | |
c1076715 | 160 | |
ac6e04fc | 161 | //const Float_t Noise_Level=0; //Noise Level in percentage of mesh points |
162 | //const Float_t t=0.6; //Softening of Noise Correction (factor) | |
c1076715 | 163 | |
ac6e04fc | 164 | const Float_t kPi=TMath::Pi(); |
c1076715 | 165 | |
ac6e04fc | 166 | const Float_t kHeight=geometry->GetRadiatorToPads(); //Distance from Radiator to Pads in centimeters |
167 | //printf("Distance to Pads:%f\n",kHeight); | |
ceccff49 | 168 | |
ac6e04fc | 169 | const Int_t kSpot=0; //number of passes with spot algorithm |
c1076715 | 170 | |
9c77ea58 | 171 | const Int_t kDimensionTheta=100; //Matrix dimension for angle Detection |
172 | const Int_t kDimensionPhi=100; | |
ac6e04fc | 173 | const Int_t kDimensionOmega=100; |
c1076715 | 174 | |
9c77ea58 | 175 | const Float_t SPOTp=.25; //Percentage of spot action |
176 | const Float_t kMinOmega=.4; | |
177 | const Float_t kMaxOmega=.7; //Maximum Cherenkov angle to identify | |
ac6e04fc | 178 | const Float_t kMinTheta=0; |
9c77ea58 | 179 | const Float_t kMaxTheta=10*kPi/180; |
ac6e04fc | 180 | const Float_t kMinPhi=0; |
181 | const Float_t kMaxPhi=360*kPi/180; | |
182 | ||
ac6e04fc | 183 | Float_t rechit[6]; //Reconstructed point data |
184 | ||
ac6e04fc | 185 | Int_t ***point = i3tensor(0,kDimensionTheta,0,kDimensionPhi,0,kDimensionOmega); |
186 | Int_t ***point1 = i3tensor(0,kDimensionTheta,0,kDimensionPhi,0,kDimensionOmega); | |
c1076715 | 187 | |
ac6e04fc | 188 | steptheta=(kMaxTheta-kMinTheta)/kDimensionTheta; |
189 | stepphi=(kMaxPhi-kMinPhi)/kDimensionPhi; | |
190 | ||
191 | static TH3F *Points = new TH3F("Points","Reconstructed points 3D",kDimensionTheta,0,kDimensionTheta,kDimensionPhi,0,kDimensionPhi,kDimensionOmega,0,kDimensionOmega); | |
192 | static TH2F *ThetaPhi = new TH2F("ThetaPhi","Theta-Phi projection",kDimensionTheta,0,kDimensionTheta,kDimensionPhi,0,kDimensionPhi); | |
193 | static TH2F *OmegaTheta = new TH2F("OmegaTheta","Omega-Theta projection",kDimensionTheta,0,kDimensionTheta,kDimensionOmega,0,kDimensionOmega); | |
194 | static TH2F *OmegaPhi = new TH2F("OmegaPhi","Omega-Phi projection",kDimensionPhi,0,kDimensionPhi,kDimensionOmega,0,kDimensionOmega); | |
195 | static TH3F *SpotPoints = new TH3F("Points","Reconstructed points 3D, spot",kDimensionTheta,0,kDimensionTheta,kDimensionPhi,0,kDimensionPhi,kDimensionOmega,0,kDimensionOmega); | |
196 | static TH2F *SpotThetaPhi = new TH2F("ThetaPhi","Theta-Phi projection, spot",kDimensionTheta,0,kDimensionTheta,kDimensionPhi,0,kDimensionPhi); | |
197 | static TH2F *SpotOmegaTheta = new TH2F("OmegaTheta","Omega-Theta projection, spot",kDimensionTheta,0,kDimensionTheta,kDimensionOmega,0,kDimensionOmega); | |
198 | static TH2F *SpotOmegaPhi = new TH2F("OmegaPhi","Omega-Phi projection, spot",kDimensionPhi,0,kDimensionPhi,kDimensionOmega,0,kDimensionOmega); | |
199 | static TH2F *DigitsXY = new TH2F("DigitsXY","Pads used for reconstruction",150,-25,25,150,-25,25); | |
9c77ea58 | 200 | static TH1F *AngleAct = new TH1F("AngleAct","Activation per angle",100,.45,1); |
201 | static TH1F *Activation = new TH1F("Activation","Activation per ring",100,0,25); | |
ac6e04fc | 202 | Points->SetXTitle("theta"); |
203 | Points->SetYTitle("phi"); | |
204 | Points->SetZTitle("omega"); | |
205 | ThetaPhi->SetXTitle("theta"); | |
206 | ThetaPhi->SetYTitle("phi"); | |
207 | OmegaTheta->SetXTitle("theta"); | |
208 | OmegaTheta->SetYTitle("omega"); | |
209 | OmegaPhi->SetXTitle("phi"); | |
210 | OmegaPhi->SetYTitle("omega"); | |
211 | SpotPoints->SetXTitle("theta"); | |
212 | SpotPoints->SetYTitle("phi"); | |
213 | SpotPoints->SetZTitle("omega"); | |
214 | SpotThetaPhi->SetXTitle("theta"); | |
215 | SpotThetaPhi->SetYTitle("phi"); | |
216 | SpotOmegaTheta->SetXTitle("theta"); | |
217 | SpotOmegaTheta->SetYTitle("omega"); | |
218 | SpotOmegaPhi->SetXTitle("phi"); | |
219 | SpotOmegaPhi->SetYTitle("omega"); | |
9c77ea58 | 220 | AngleAct->SetFillColor(5); |
221 | AngleAct->SetXTitle("rad"); | |
222 | AngleAct->SetYTitle("activation"); | |
223 | Activation->SetFillColor(5); | |
224 | Activation->SetXTitle("activation"); | |
ac6e04fc | 225 | |
c1076715 | 226 | Int_t ntracks = (Int_t)gAlice->TreeH()->GetEntries(); |
9c77ea58 | 227 | |
c1076715 | 228 | Float_t trackglob[3]; |
229 | Float_t trackloc[3]; | |
230 | ||
c1076715 | 231 | //printf("Area de uma elipse com teta 0 e Omega 45:%f",Area(0,45)); |
9c77ea58 | 232 | |
4a5c8776 | 233 | Int_t track; |
c1076715 | 234 | |
4a5c8776 | 235 | for (track=0; track<ntracks;track++) { |
c1076715 | 236 | gAlice->ResetHits(); |
237 | gAlice->TreeH()->GetEvent(track); | |
3a3df9e3 | 238 | TClonesArray *pHits = pRICH->Hits(); |
239 | if (pHits == 0) return; | |
240 | Int_t nhits = pHits->GetEntriesFast(); | |
c1076715 | 241 | if (nhits == 0) continue; |
2966f600 | 242 | //Int_t nent=(Int_t)gAlice->TreeD()->GetEntries(); |
c1076715 | 243 | AliRICHHit *mHit = 0; |
c1076715 | 244 | //Int_t npoints=0; |
245 | ||
ac6e04fc | 246 | Int_t counter=0, counter1=0; |
c1076715 | 247 | //Initialization |
3a3df9e3 | 248 | for(i=0;i<kDimensionTheta;i++) |
c1076715 | 249 | { |
3a3df9e3 | 250 | for(j=0;j<kDimensionPhi;j++) |
c1076715 | 251 | { |
3a3df9e3 | 252 | for(k=0;k<kDimensionOmega;k++) |
c1076715 | 253 | { |
254 | counter++; | |
3a3df9e3 | 255 | point[i][j][k]=0; |
256 | //printf("Dimensions theta:%d, phi:%d, omega:%d",kDimensionTheta,kDimensionPhi,kDimensionOmega); | |
c1076715 | 257 | //printf("Resetting %d %d %d, time %d\n",i,j,k,counter); |
3a3df9e3 | 258 | //-Noise_Level*(Area(i*kPi/(18*dimension),k*kMaxOmega/dimension)-Area((i-1)*kPi/(18*dimension),(k-1)*kMaxOmega/dimension)); |
259 | //printf("n-%f",-Noise_Level*(Area(i*kPi/(18*dimension),k*kMaxOmega/dimension)-Area((i-1)*kPi/(18*dimension),(k-1)*kMaxOmega/dimension))); | |
c1076715 | 260 | } |
261 | } | |
262 | } | |
c1076715 | 263 | |
9c77ea58 | 264 | Int_t ncerenkovs = pRICH->Cerenkovs()->GetEntriesFast(); |
265 | ||
266 | ||
267 | originalOmega = 0; | |
268 | counter = 0; | |
269 | ||
270 | for (Int_t hit=0;hit<ncerenkovs;hit++) { | |
271 | AliRICHCerenkov* cHit = (AliRICHCerenkov*) pRICH->Cerenkovs()->UncheckedAt(hit); | |
272 | Float_t loss = cHit->fLoss; //did it hit the CsI? | |
273 | Float_t production = cHit->fProduction; //was it produced in freon? | |
274 | Float_t cherenkov = cHit->fCerenkovAngle; //production cerenkov angle | |
275 | if (loss == 4 && production == 1) | |
276 | { | |
277 | counter +=1; | |
278 | originalOmega += cherenkov; | |
279 | //printf("%f\n",cherenkov); | |
280 | } | |
281 | } | |
282 | ||
283 | printf("Cerenkovs : %d\n",counter); | |
284 | ||
285 | if(counter != 0) //if there are cerenkovs | |
286 | { | |
287 | originalOmega = originalOmega/counter; | |
288 | printf("Original omega: %f\n",originalOmega); | |
289 | ||
ceccff49 | 290 | |
c1076715 | 291 | |
9c77ea58 | 292 | mHit = (AliRICHHit*) pHits->UncheckedAt(0); |
293 | Int_t nch = mHit->Chamber(); | |
294 | originalTheta = mHit->Theta(); | |
295 | originalPhi = mHit->Phi(); | |
296 | trackglob[0] = mHit->X(); | |
297 | trackglob[1] = mHit->Y(); | |
298 | trackglob[2] = mHit->Z(); | |
299 | ||
300 | printf("\n--------------------------------------\n"); | |
301 | printf("Chamber %d, track %d\n", nch, track); | |
c1076715 | 302 | |
9c77ea58 | 303 | |
304 | iChamber = &(pRICH->Chamber(nch-1)); | |
c1076715 | 305 | |
9c77ea58 | 306 | //printf("Nch:%d\n",nch); |
c1076715 | 307 | |
9c77ea58 | 308 | iChamber->GlobaltoLocal(trackglob,trackloc); |
c1076715 | 309 | |
9c77ea58 | 310 | iChamber->LocaltoGlobal(trackloc,trackglob); |
311 | ||
312 | ||
313 | cx=trackloc[0]; | |
314 | cy=trackloc[2]; | |
c1076715 | 315 | |
9c77ea58 | 316 | AliRICHDigit *points = 0; |
317 | TClonesArray *pDigits = pRICH->DigitsAddress(nch-1); | |
318 | ||
319 | AliRICHRawCluster *cluster =0; | |
320 | TClonesArray *pClusters = pRICH->RawClustAddress(nch-1); | |
c1076715 | 321 | |
9c77ea58 | 322 | Int_t maxcycle=0; |
323 | ||
324 | //digitize from digits | |
325 | ||
326 | if(type==0) | |
327 | { | |
328 | gAlice->TreeD()->GetEvent(0); | |
329 | Int_t ndigits = pDigits->GetEntriesFast(); | |
330 | maxcycle=ndigits; | |
331 | printf("Got %d digits\n",ndigits); | |
332 | } | |
333 | ||
334 | //digitize from clusters | |
335 | ||
336 | if(type==1) | |
337 | { | |
338 | Int_t nent=(Int_t)gAlice->TreeR()->GetEntries(); | |
339 | gAlice->TreeR()->GetEvent(nent-1); | |
340 | Int_t nclusters = pClusters->GetEntriesFast(); | |
341 | maxcycle=nclusters; | |
342 | printf("Got %d clusters\n",nclusters); | |
343 | } | |
344 | ||
345 | ||
346 | ||
347 | ||
348 | counter=0; | |
349 | printf("Starting calculations\n"); | |
350 | printf(" Start Finish\n"); | |
351 | printf("Progress: "); | |
352 | for(Float_t theta=0;theta<kMaxTheta;theta+=steptheta) | |
ac6e04fc | 353 | { |
9c77ea58 | 354 | printf("."); |
355 | for(Float_t phi=0;phi<=kMaxPhi;phi+=stepphi) | |
356 | { | |
357 | //printf("Phi:%3.1f\n", phi*180/kPi); | |
358 | counter1=0; | |
359 | for (Int_t cycle=0;cycle<maxcycle;cycle++) | |
360 | { | |
c1076715 | 361 | |
9c77ea58 | 362 | if(type==0) |
363 | { | |
364 | points=(AliRICHDigit*) pDigits->UncheckedAt(cycle); | |
365 | segmentation->GetPadC(points->PadX(), points->PadY(),x, y, z); | |
366 | } | |
367 | ||
368 | if(type==1) | |
369 | { | |
370 | cluster=(AliRICHRawCluster*) pClusters->UncheckedAt(cycle); | |
371 | x=cluster->fX; | |
372 | y=cluster->fY; | |
373 | q=cluster->fQ; | |
374 | } | |
375 | ||
376 | if(type ==0 || q > 100) | |
377 | ||
eb1ee126 | 378 | { |
ac6e04fc | 379 | |
9c77ea58 | 380 | x=x-cx; |
381 | y=y-cy; | |
382 | radius=TMath::Sqrt(TMath::Power(x,2)+TMath::Power(y,2)); | |
ac6e04fc | 383 | |
9c77ea58 | 384 | //calculation of relative phi angle of digit |
ac6e04fc | 385 | |
9c77ea58 | 386 | phi_relative = acos(y/radius); |
387 | phi_relative = TMath::Abs(phi_relative - phi); | |
ac6e04fc | 388 | |
ac6e04fc | 389 | |
9c77ea58 | 390 | if(radius>4) |
ac6e04fc | 391 | { |
9c77ea58 | 392 | meanradius+=radius; |
393 | counter++; | |
ac6e04fc | 394 | |
ac6e04fc | 395 | |
9c77ea58 | 396 | //if (radius < (2*kHeight*tan(theta+kMaxOmega))) |
397 | if (radius < (2*kHeight*tan(kMaxOmega))) | |
398 | //if(Fiducial(x,y,theta,phi,kHeight,kMaxOmega,kMinOmega)) | |
399 | { | |
400 | ||
401 | if(phi==0) | |
402 | { | |
403 | //printf("Radius: %f, Max Radius: %f\n",radius,2*kHeight*tan(theta+kMaxOmega)*3/4); | |
404 | //printf("Loaded digit %d with coordinates x:%f, y%f\n",dig,x,y); | |
405 | //printf("Using digit %d, for theta %f\n",dig,theta); | |
406 | } | |
407 | ||
408 | counter1++; | |
409 | ||
410 | l=kHeight/cos(theta); | |
411 | ||
412 | //main calculation | |
413 | ||
414 | DigitsXY->Fill(x,y,(float) 1); | |
415 | ||
416 | theta1=SnellAngle(theta); | |
417 | ||
418 | aux1=-y*sin(phi)+x*cos(phi); | |
419 | aux2=y*cos(phi)+x*sin(phi); | |
420 | aux3=( TMath::Power(aux1,2)+TMath::Power(cos(theta1)*aux2 ,2))/TMath::Power(sin(theta1)*aux2+l,2); | |
421 | omega=atan(sqrt(aux3)); | |
422 | ||
423 | //omega is distorted, theta1 is distorted | |
424 | ||
425 | if(InvSnellAngle(omega+TMath::Abs(cos(phi_relative))*theta1)<999) | |
426 | { | |
427 | omega1=InvSnellAngle(omega+TMath::Abs(cos(phi_relative))*theta); | |
428 | theta1=InvSnellAngle(theta1); | |
429 | ||
430 | } | |
431 | else | |
432 | { | |
433 | omega1=0; | |
434 | theta1=0; | |
435 | } | |
436 | ||
437 | if(omega1<kMaxOmega && omega1>kMinOmega) | |
438 | { | |
439 | //printf("Omega found:%f\n",omega); | |
440 | omega1=omega1-kMinOmega; | |
441 | ||
442 | //printf("Omega: %f Theta: %3.1f Phi:%3.1f\n",omega, theta*180/kPi, phi*180/kPi); | |
443 | ||
444 | bintheta=theta1*kDimensionTheta/kMaxTheta; | |
445 | binphi=phi*kDimensionPhi/kMaxPhi; | |
446 | binomega=omega1*kDimensionOmega/(kMaxOmega-kMinOmega); | |
447 | ||
448 | if(Int_t(bintheta+0.5)==Int_t(bintheta)) | |
449 | inttheta=Int_t(bintheta); | |
450 | else | |
451 | inttheta=Int_t(bintheta+0.5); | |
452 | ||
453 | if(Int_t(binomega+0.5)==Int_t(binomega)) | |
454 | intomega=Int_t(binomega); | |
455 | else | |
456 | intomega=Int_t(binomega+0.5); | |
457 | ||
458 | if(Int_t(binphi+0.5)==Int_t(binphi)) | |
459 | intphi=Int_t(binphi); | |
460 | else | |
461 | intphi=Int_t(binphi+0.5); | |
462 | ||
463 | //printf("Point added at %d %d %d\n",inttheta,intphi,intomega); | |
464 | ||
465 | if(type==0) | |
466 | point[inttheta][intphi][intomega]+=1; | |
467 | if(type==1) | |
468 | point[inttheta][intphi][intomega]+=(Int_t)(q); | |
469 | ||
470 | //printf("Omega stored:%d\n",intomega); | |
471 | Points->Fill(inttheta,intphi,intomega,(float) 1); | |
472 | ThetaPhi->Fill(inttheta,intphi,(float) 1); | |
473 | OmegaTheta->Fill(inttheta,intomega,(float) 1); | |
474 | OmegaPhi->Fill(intphi,intomega,(float) 1); | |
475 | //printf("Filling at %d %d %d\n",Int_t(theta*kDimensionTheta/kMaxTheta),Int_t(phi*kDimensionPhi/kMaxPhi),Int_t(omega*kDimensionOmega/kMaxOmega)); | |
476 | } | |
477 | //if(omega<kMaxOmega)point[Int_t(theta)][Int_t(phi)][Int_t(omega)]+=1; | |
478 | } | |
ac6e04fc | 479 | } |
eb1ee126 | 480 | } |
9c77ea58 | 481 | |
c1076715 | 482 | } |
9c77ea58 | 483 | //printf("Used %d digits for theta %3.1f\n",counter1, theta*180/kPi); |
ac6e04fc | 484 | } |
9c77ea58 | 485 | |
c1076715 | 486 | } |
ac6e04fc | 487 | |
9c77ea58 | 488 | printf("\n"); |
ac6e04fc | 489 | |
9c77ea58 | 490 | meanradius=meanradius/counter; |
491 | //printf("Mean radius:%f, counter:%d\n",meanradius,counter); | |
492 | rechit[5]=meanradius; | |
493 | //printf("Used %d digits\n",counter1); | |
494 | //printf("\n"); | |
495 | ||
496 | if(nev<2) | |
ac6e04fc | 497 | { |
9c77ea58 | 498 | if(nev==0) |
499 | { | |
500 | fc1->cd(1); | |
501 | Points->Draw("colz"); | |
502 | fc1->cd(2); | |
503 | ThetaPhi->Draw("colz"); | |
504 | fc1->cd(3); | |
505 | OmegaTheta->Draw("colz"); | |
506 | fc1->cd(4); | |
507 | OmegaPhi->Draw("colz"); | |
508 | fc3->cd(); | |
509 | DigitsXY->Draw("colz"); | |
510 | } | |
511 | else | |
512 | { | |
513 | //fc1->cd(1); | |
514 | //Points->Draw("same"); | |
515 | //fc1->cd(2); | |
516 | //ThetaPhi->Draw("same"); | |
517 | //fc1->cd(3); | |
518 | //OmegaTheta->Draw("same"); | |
519 | //fc1->cd(4); | |
520 | //OmegaPhi->Draw("same"); | |
521 | } | |
ac6e04fc | 522 | } |
ac6e04fc | 523 | |
c1076715 | 524 | |
9c77ea58 | 525 | //SPOT execute twice |
526 | for(Int_t s=0;s<kSpot;s++) | |
527 | { | |
528 | printf(" Applying Spot algorithm, pass %d\n", s); | |
ceccff49 | 529 | |
c1076715 | 530 | //buffer copy |
3a3df9e3 | 531 | for(i=0;i<=kDimensionTheta;i++) |
ceccff49 | 532 | { |
533 | for(j=0;j<=kDimensionPhi;j++) | |
534 | { | |
535 | for(k=0;k<=kDimensionOmega;k++) | |
536 | { | |
537 | point1[i][j][k]=point[i][j][k]; | |
538 | } | |
539 | } | |
540 | } | |
541 | ||
c1076715 | 542 | //SPOT algorithm |
ac6e04fc | 543 | for(i=1;i<kDimensionTheta-1;i++) |
ceccff49 | 544 | { |
ac6e04fc | 545 | for(j=1;j<kDimensionPhi-1;j++) |
c1076715 | 546 | { |
ac6e04fc | 547 | for(k=1;k<kDimensionOmega-1;k++) |
c1076715 | 548 | { |
ceccff49 | 549 | if((point[i][k][j]>point[i-1][k][j])&&(point[i][k][j]>point[i+1][k][j])&& |
550 | (point[i][k][j]>point[i][k-1][j])&&(point[i][k][j]>point[i][k+1][j])&& | |
551 | (point[i][k][j]>point[i][k][j-1])&&(point[i][k][j]>point[i][k][j+1])) | |
552 | { | |
553 | //cout<<"SPOT"<<endl; | |
554 | //Execute SPOT on point | |
555 | point1[i][j][k]+=Int_t(SPOTp*(point[i-1][k][j]+point[i+1][k][j]+point[i][k-1][j]+point[i][k+1][j]+point[i][k][j-1]+point[i][k][j+1])); | |
556 | point1[i-1][k][j]=Int_t(SPOTp*point[i-1][k][j]); | |
557 | point1[i+1][k][j]=Int_t(SPOTp*point[i+1][k][j]); | |
558 | point1[i][k-1][j]=Int_t(SPOTp*point[i][k-1][j]); | |
559 | point1[i][k+1][j]=Int_t(SPOTp*point[i][k+1][j]); | |
560 | point1[i][k][j-1]=Int_t(SPOTp*point[i][k][j-1]); | |
561 | point1[i][k][j+1]=Int_t(SPOTp*point[i][k][j+1]); | |
562 | } | |
c1076715 | 563 | } |
564 | } | |
ceccff49 | 565 | } |
566 | ||
c1076715 | 567 | //copy from buffer copy |
ac6e04fc | 568 | counter1=0; |
3a3df9e3 | 569 | for(i=1;i<kDimensionTheta;i++) |
ceccff49 | 570 | { |
571 | for(j=1;j<kDimensionPhi;j++) | |
572 | { | |
573 | for(k=1;k<kDimensionOmega;k++) | |
574 | { | |
575 | point[i][j][k]=point1[i][j][k]; | |
ac6e04fc | 576 | if(nev<20) |
577 | { | |
578 | if(s==kSpot-1) | |
579 | { | |
580 | if(point1[i][j][k] != 0) | |
581 | { | |
582 | SpotPoints->Fill(i,j,k,(float) point1[i][j][k]); | |
583 | //printf("Random number %f\n",random->Rndm(2)); | |
584 | //if(random->Rndm() < .2) | |
585 | //{ | |
586 | SpotThetaPhi->Fill(i,j,(float) point1[i][j][k]); | |
587 | SpotOmegaTheta->Fill(i,k,(float) point1[i][j][k]); | |
588 | SpotOmegaPhi->Fill(j,k,(float) point1[i][j][k]); | |
589 | counter1++; | |
590 | //} | |
591 | //printf("Filling at %d %d %d value %f\n",i,j,k,(float) point1[i][j][k]); | |
592 | } | |
593 | } | |
594 | } | |
ceccff49 | 595 | //if(point1[i][j][k] != 0) |
596 | //printf("Last transfer point: %d, point1, %d\n",point[i][j][k],point1[i][j][k]); | |
597 | } | |
598 | } | |
599 | } | |
600 | } | |
c1076715 | 601 | |
ac6e04fc | 602 | //printf("Filled %d cells\n",counter1); |
603 | ||
9c77ea58 | 604 | if(nev<2) |
ac6e04fc | 605 | { |
9c77ea58 | 606 | if(nev==0) |
607 | { | |
608 | fc2->cd(1); | |
609 | SpotPoints->Draw("colz"); | |
610 | fc2->cd(2); | |
611 | SpotThetaPhi->Draw("colz"); | |
612 | fc2->cd(3); | |
613 | SpotOmegaTheta->Draw("colz"); | |
614 | fc2->cd(4); | |
615 | SpotOmegaPhi->Draw("colz"); | |
616 | } | |
617 | else | |
618 | { | |
619 | //fc2->cd(1); | |
620 | //SpotPoints->Draw("same"); | |
621 | //fc2->cd(2); | |
622 | //SpotThetaPhi->Draw("same"); | |
623 | //fc2->cd(3); | |
624 | //SpotOmegaTheta->Draw("same"); | |
625 | //fc2->cd(4); | |
626 | //SpotOmegaPhi->Draw("same"); | |
627 | } | |
ac6e04fc | 628 | } |
c1076715 | 629 | |
c1076715 | 630 | |
9c77ea58 | 631 | //Identification is equivalent to maximum determination |
632 | max=0;maxi=0;maxj=0;maxk=0; | |
633 | ||
634 | printf(" Proceeding to identification"); | |
635 | ||
636 | for(i=0;i<kDimensionTheta;i++) | |
637 | for(j=0;j<kDimensionPhi;j++) | |
638 | for(k=0;k<kDimensionOmega;k++) | |
639 | if(point[i][j][k]>max) | |
640 | { | |
641 | //cout<<"maxi="<<i*90/dimension<<" maxj="<<j*90/dimension<<" maxk="<<k*kMaxOmega/dimension*180/kPi<<" max="<<max<<endl; | |
ceccff49 | 642 | maxi=i;maxj=j;maxk=k; |
643 | max=point[i][j][k]; | |
644 | printf("."); | |
ac6e04fc | 645 | //printf("Max Omega %d, Max Theta %d, Max Phi %d (%d counts)\n",maxk,maxi,maxj,max); |
9c77ea58 | 646 | } |
647 | printf("\n"); | |
c1076715 | 648 | |
9c77ea58 | 649 | Float_t FinalOmega = maxk*(kMaxOmega-kMinOmega)/kDimensionOmega; |
650 | Float_t FinalTheta = maxi*kMaxTheta/kDimensionTheta; | |
651 | Float_t FinalPhi = maxj*kMaxPhi/kDimensionPhi; | |
eb1ee126 | 652 | |
9c77ea58 | 653 | FinalOmega += kMinOmega; |
eb1ee126 | 654 | |
9c77ea58 | 655 | //printf("Detected angle for height %3.1f and for center %3.1f %3.1f:%f\n",h,cx,cy,maxk*kPi/(kDimensionTheta*4)); |
656 | printf(" Indentified angles: cerenkov - %f, theta - %3.1f, phi - %3.1f (%f activation)\n", FinalOmega, FinalTheta*180/kPi, FinalPhi*180/kPi, max); | |
657 | //printf("Detected angle for height %3.1f and for center %3.1f %3.1f:%f\n",kHeight,cx,cy,maxk); | |
658 | ||
659 | AngleAct->Fill(FinalOmega, (float) max); | |
660 | Activation->Fill(max, (float) 1); | |
661 | ||
662 | if(nev==0) | |
663 | { | |
664 | fc4->cd(1); | |
665 | AngleAct->Draw(); | |
666 | fc4->cd(2); | |
667 | Activation->Draw(); | |
668 | } | |
669 | else | |
670 | { | |
671 | fc4->cd(1); | |
672 | AngleAct->Draw("same"); | |
673 | fc4->cd(2); | |
674 | Activation->Draw("same"); | |
675 | } | |
676 | ||
677 | ||
678 | //fscanf(omegas,"%f",&realomega); | |
679 | //fscanf(thetas,"%f",&realtheta); | |
680 | //printf("Real Omega: %f",realomega); | |
681 | //cout<<"Detected:theta="<<maxi*90/kDimensionTheta<<"phi="<<maxj*90/kDimensionPhi<<"omega="<<maxk*kMaxOmega/kDimensionOmega*180/kPi<<" OmegaError="<<fabs(maxk*kMaxOmega/kDimensionOmega*180/kPi-realomega)<<" ThetaError="<<fabs(maxi*90/kDimensionTheta-realtheta)<<endl<<endl; | |
c1076715 | 682 | |
9c77ea58 | 683 | //fprintf(results,"Center Coordinates, cx=%6.2f cy=%6.2f, Real Omega=%6.2f, Detected Omega=%6.2f, Omega Error=%6.2f Theta Error=%6.2f\n",cx,cy,realomega,maxk*kMaxOmega/kDimensionOmega*180/kPi,fabs(maxk*kMaxOmega/kDimensionOmega*180/kPi-realomega),fabs(maxi*90/kDimensionTheta-realtheta)); |
c1076715 | 684 | |
685 | /*for(j=0;j<np;j++) | |
3a3df9e3 | 686 | pointpp(maxj*90/kDimensionTheta,maxi*90/kDimensionPhi,maxk*kMaxOmega/kDimensionOmega*180/kPi,cx,cy);//Generates a point on the elipse*/ |
c1076715 | 687 | |
688 | ||
689 | //Start filling rec. hits | |
690 | ||
ac6e04fc | 691 | rechit[0] = FinalTheta; |
9c77ea58 | 692 | rechit[1] = FinalPhi - 90*kPi/180; |
ac6e04fc | 693 | rechit[2] = FinalOmega; |
c1076715 | 694 | rechit[3] = cx; |
695 | rechit[4] = cy; | |
ac6e04fc | 696 | |
697 | //CreatePoints(FinalTheta, 270*kPi/180 + FinalPhi, FinalOmega, kHeight); | |
698 | ||
9c77ea58 | 699 | printf ("track %d, theta %f, phi %f, omega %f\n\n\n",track,rechit[0],rechit[1]*180/kPi,rechit[2]); |
c1076715 | 700 | |
701 | // fill rechits | |
9c77ea58 | 702 | pRICH->AddRecHit3D(nch-1,rechit,originalOmega, originalTheta, originalPhi); |
ac6e04fc | 703 | //printf("rechit %f %f %f %f %f\n",rechit[0],rechit[1],rechit[2],rechit[3],rechit[4]); |
ceccff49 | 704 | //printf("Chamber:%d",nch); |
9c77ea58 | 705 | } |
706 | ||
707 | else //if no cerenkovs | |
708 | ||
709 | { | |
710 | ||
711 | rechit[0] = 0; | |
712 | rechit[1] = 0; | |
713 | rechit[2] = 0; | |
714 | rechit[3] = 0; | |
715 | rechit[4] = 0; | |
716 | ||
717 | } | |
718 | ||
719 | } | |
720 | ||
721 | if(type==1) //reco from clusters | |
722 | { | |
723 | pRICH->ResetRawClusters(); | |
724 | //Int_t nent=(Int_t)gAlice->TreeR()->GetEntries(); | |
725 | //gAlice->TreeR()->GetEvent(track); | |
726 | //printf("Going to branch %d\n",track); | |
727 | //gAlice->GetEvent(nev); | |
728 | } | |
729 | ||
730 | ||
731 | //printf("\n\n\n\n"); | |
732 | gAlice->TreeR()->Fill(); | |
c1076715 | 733 | TClonesArray *fRec; |
237c933d | 734 | for (i=0;i<kNCH;i++) { |
4a5c8776 | 735 | fRec=pRICH->RecHitsAddress3D(i); |
c1076715 | 736 | int ndig=fRec->GetEntriesFast(); |
ac6e04fc | 737 | printf ("Chamber %d, rings %d\n",i+1,ndig); |
c1076715 | 738 | } |
4a5c8776 | 739 | pRICH->ResetRecHits3D(); |
ac6e04fc | 740 | |
741 | free_i3tensor(point,0,kDimensionTheta,0,kDimensionPhi,0,kDimensionOmega); | |
742 | free_i3tensor(point1,0,kDimensionTheta,0,kDimensionPhi,0,kDimensionOmega); | |
c1076715 | 743 | } |
744 | ||
ac6e04fc | 745 | |
746 | ||
3a3df9e3 | 747 | Float_t AliRICHDetect:: Area(Float_t theta,Float_t omega) |
c1076715 | 748 | { |
237c933d | 749 | |
750 | // | |
751 | // Calculates area of an ellipse for given incidence angles | |
752 | ||
753 | ||
c1076715 | 754 | Float_t area; |
3a3df9e3 | 755 | const Float_t kHeight=9.25; //Distance from Radiator to Pads in pads |
c1076715 | 756 | |
00df6e79 | 757 | area=TMath::Pi()*TMath::Power(kHeight*tan(omega),2)/TMath::Power(TMath::Power(cos(theta),2)-TMath::Power(tan(omega)*sin(theta),2),3/2); |
c1076715 | 758 | |
759 | return (area); | |
760 | } | |
761 | ||
c1076715 | 762 | |
ac6e04fc | 763 | Int_t ***AliRICHDetect::i3tensor(long nrl, long nrh, long ncl, long nch, long ndl, long ndh) |
764 | // allocate a Int_t 3tensor with range t[nrl..nrh][ncl..nch][ndl..ndh] | |
765 | { | |
766 | long i,j,nrow=nrh-nrl+1,ncol=nch-ncl+1,ndep=ndh-ndl+1; | |
767 | Int_t ***t; | |
768 | ||
769 | int NR_END=1; | |
c1076715 | 770 | |
ac6e04fc | 771 | // allocate pointers to pointers to rows |
772 | t=(Int_t ***) malloc((size_t)((nrow+NR_END)*sizeof(Int_t**))); | |
773 | if (!t) printf("allocation failure 1 in f3tensor()"); | |
774 | t += NR_END; | |
775 | t -= nrl; | |
776 | ||
777 | // allocate pointers to rows and set pointers to them | |
778 | t[nrl]=(Int_t **) malloc((size_t)((nrow*ncol+NR_END)*sizeof(Int_t*))); | |
779 | if (!t[nrl]) printf("allocation failure 2 in f3tensor()"); | |
780 | t[nrl] += NR_END; | |
781 | t[nrl] -= ncl; | |
c1076715 | 782 | |
ac6e04fc | 783 | // allocate rows and set pointers to them |
784 | t[nrl][ncl]=(Int_t *) malloc((size_t)((nrow*ncol*ndep+NR_END)*sizeof(Int_t))); | |
785 | if (!t[nrl][ncl]) printf("allocation failure 3 in f3tensor()"); | |
786 | t[nrl][ncl] += NR_END; | |
787 | t[nrl][ncl] -= ndl; | |
c1076715 | 788 | |
ac6e04fc | 789 | for(j=ncl+1;j<=nch;j++) t[nrl][j]=t[nrl][j-1]+ndep; |
790 | for(i=nrl+1;i<=nrh;i++) { | |
791 | t[i]=t[i-1]+ncol; | |
792 | t[i][ncl]=t[i-1][ncl]+ncol*ndep; | |
793 | for(j=ncl+1;j<=nch;j++) t[i][j]=t[i][j-1]+ndep; | |
c1076715 | 794 | } |
ac6e04fc | 795 | |
796 | // return pointer to array of pointers to rows | |
797 | return t; | |
798 | } | |
799 | ||
800 | void AliRICHDetect::free_i3tensor(int ***t, long nrl, long nrh, long ncl, long nch,long ndl, long ndh) | |
801 | // free a Int_t f3tensor allocated by i3tensor() | |
802 | { | |
803 | int NR_END=1; | |
804 | ||
805 | free((char*) (t[nrl][ncl]+ndl-NR_END)); | |
806 | free((char*) (t[nrl]+ncl-NR_END)); | |
807 | free((char*) (t+nrl-NR_END)); | |
808 | } | |
809 | ||
810 | ||
811 | Float_t AliRICHDetect:: SnellAngle(Float_t iangle) | |
812 | { | |
813 | ||
814 | // Compute the Snell angle | |
815 | ||
816 | Float_t nfreon = 1.295; | |
817 | Float_t nquartz = 1.585; | |
818 | Float_t ngas = 1; | |
819 | ||
820 | Float_t sinrangle; | |
821 | Float_t rangle; | |
822 | Float_t a1, a2; | |
823 | ||
824 | a1=nfreon/nquartz; | |
825 | a2=nquartz/ngas; | |
826 | ||
827 | sinrangle = a1*a2*sin(iangle); | |
828 | ||
829 | if(sinrangle>1.) { | |
830 | rangle = 999.; | |
831 | return rangle; | |
832 | } | |
833 | ||
834 | rangle = asin(sinrangle); | |
835 | return rangle; | |
836 | } | |
837 | ||
838 | Float_t AliRICHDetect:: InvSnellAngle(Float_t rangle) | |
839 | { | |
840 | ||
841 | // Compute the inverse Snell angle | |
c1076715 | 842 | |
ac6e04fc | 843 | Float_t nfreon = 1.295; |
844 | Float_t nquartz = 1.585; | |
845 | Float_t ngas = 1; | |
c1076715 | 846 | |
ac6e04fc | 847 | Float_t siniangle; |
848 | Float_t iangle; | |
849 | Float_t a1,a2; | |
c1076715 | 850 | |
ac6e04fc | 851 | a1=nfreon/nquartz; |
852 | a2=nquartz/ngas; | |
c1076715 | 853 | |
ac6e04fc | 854 | siniangle = sin(rangle)/(a1*a2); |
855 | iangle = asin(siniangle); | |
856 | ||
857 | if(siniangle>1.) { | |
858 | iangle = 999.; | |
859 | return iangle; | |
860 | } | |
861 | ||
862 | iangle = asin(siniangle); | |
863 | return iangle; | |
864 | } | |
c1076715 | 865 | |
866 | ||
ac6e04fc | 867 | |
868 | //________________________________________________________________________________ | |
869 | void AliRICHDetect::CreatePoints(Float_t theta, Float_t phi, Float_t omega, Float_t h) | |
870 | { | |
871 | ||
872 | // Create points along the ellipse equation | |
873 | ||
874 | Int_t s1,s2; | |
875 | Float_t fiducial=h*TMath::Tan(omega+theta), l=h/TMath::Cos(theta), xtrial, y=0, c0, c1, c2; | |
876 | //TRandom *random=new TRandom(); | |
877 | ||
878 | static TH2F *REllipse = new TH2F("REllipse","Reconstructed ellipses",150,-25,25,150,-25,25); | |
879 | ||
880 | for(Float_t i=0;i<1000;i++) | |
881 | { | |
882 | ||
883 | Float_t counter=0; | |
884 | ||
885 | c0=0;c1=0;c2=0; | |
886 | while((c1*c1-4*c2*c0)<=0 && counter<1000) | |
887 | { | |
888 | //Choose which side to go... | |
889 | if(i>250 && i<750) s1=1; | |
890 | //if (gRandom->Rndm(1)>.5) s1=1; | |
891 | else s1=-1; | |
892 | //printf("s1:%d\n",s1); | |
893 | //Trial a y | |
894 | y=s1*i*gRandom->Rndm(Int_t(fiducial/50)); | |
895 | //printf("Fiducial %f for omega:%f theta:%f phi:%f\n",fiducial,omega,theta,fphi); | |
896 | Float_t alfa1=theta; | |
897 | Float_t theta1=phi; | |
898 | Float_t omega1=omega; | |
899 | ||
900 | //Solve the eq for a trial x | |
901 | c0=-TMath::Power(y*TMath::Cos(alfa1)*TMath::Cos(theta1),2)-TMath::Power(y*TMath::Sin(alfa1),2)+TMath::Power(l*TMath::Tan(omega1),2)+2*l*y*TMath::Cos(alfa1)*TMath::Sin(theta1)*TMath::Power(TMath::Tan(omega1),2)+TMath::Power(y*TMath::Cos(alfa1)*TMath::Sin(theta1)*TMath::Tan(omega1),2); | |
902 | c1=2*y*TMath::Cos(alfa1)*TMath::Sin(alfa1)-2*y*TMath::Cos(alfa1)*TMath::Power(TMath::Cos(theta1),2)*TMath::Sin(alfa1)+2*l*TMath::Sin(alfa1)*TMath::Sin(theta1)*TMath::Power(TMath::Tan(omega1),2)+2*y*TMath::Cos(alfa1)*TMath::Sin(alfa1)*TMath::Power(TMath::Sin(theta1),2)*TMath::Power(TMath::Tan(omega1),2); | |
903 | c2=-TMath::Power(TMath::Cos(alfa1),2)-TMath::Power(TMath::Cos(theta1)*TMath::Sin(alfa1),2)+TMath::Power(TMath::Sin(alfa1)*TMath::Sin(theta1)*TMath::Tan(omega1),2); | |
904 | //cout<<"Trial: y="<<y<<"c0="<<c0<<" c1="<<c1<<" c2="<<c2<<endl; | |
905 | //printf("Result:%f\n\n",c1*c1-4*c2*c0); | |
906 | //i+=.01; | |
907 | counter +=1; | |
908 | } | |
909 | ||
910 | if (counter>=1000) | |
911 | y=0; | |
912 | ||
913 | //Choose which side to go... | |
914 | //if(gRandom->Rndm(1)>.5) s=1; | |
915 | //else s=-1; | |
916 | if(i>500) s2=1; | |
917 | //if (gRandom->Rndm(1)>.5) s2=1; | |
918 | else s2=-1; | |
919 | xtrial=(-c1+s2*TMath::Sqrt(c1*c1-4*c2*c0))/(2*c2); | |
920 | //cout<<"x="<<xtrial<<" y="<<cy+y<<endl; | |
921 | //printf("Coordinates: %f %f\n",xtrial,fCy+y); | |
922 | ||
923 | REllipse->Fill(xtrial,y); | |
924 | ||
925 | //printf("Coordinates: %f %f %f\n",vectorGlob[0],vectorGlob[1],vectorGlob[2]); | |
926 | } | |
927 | ||
928 | fc3->cd(2); | |
929 | REllipse->Draw(); | |
930 | } | |
9c77ea58 | 931 | |
932 | Int_t AliRICHDetect::Fiducial(Float_t rotx, Float_t roty, Float_t theta, Float_t phi, Float_t height, Float_t maxOmega, Float_t minOmega) | |
933 | { | |
934 | ||
935 | Float_t x,y,y1,h,omega1,omega2; | |
936 | ||
937 | Float_t a,b, offset; | |
938 | Float_t a1,b1, offset1; | |
939 | ||
940 | h = height; | |
941 | ||
942 | //refraction calculation | |
943 | ||
944 | theta = SnellAngle(theta); | |
945 | phi = phi - TMath::Pi(); | |
946 | omega1 = SnellAngle(maxOmega); | |
947 | omega2 = SnellAngle(minOmega); | |
948 | ||
949 | //maximum zone | |
950 | a = h*(tan(omega1+theta)+tan(omega1-theta))/2; | |
951 | b = h*tan(omega1); | |
952 | ||
953 | offset = h*(tan(omega1+theta)-tan(omega1-theta))/2; | |
954 | ||
955 | ||
956 | //minimum zone | |
957 | a1 = h*(tan(omega2+theta)+tan(omega2-theta))/2; | |
958 | b1 = h*tan(omega2); | |
959 | ||
960 | offset1 = h*(tan(omega2+theta)-tan(omega2-theta))/2; | |
961 | ||
962 | ||
963 | //rotation to phi=0 | |
964 | x = rotx*cos(phi)+roty*sin(phi); | |
965 | y = -rotx*sin(phi)+roty*cos(phi) - offset; | |
966 | y1 = -rotx*sin(phi)+roty*cos(phi) - offset1; | |
967 | ||
968 | ||
969 | if(x*x/a+y*y/b<1 && x*x/a1+y1*y1/b1>1) | |
970 | return 1; | |
971 | else | |
972 | return 0; | |
973 | ||
974 | } |