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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 | $Log$ | |
6e585aa2 | 18 | Revision 1.15 2001/10/21 18:31:23 hristov |
19 | Several pointers were set to zero in the default constructors to avoid memory management problems | |
20 | ||
2685bf00 | 21 | Revision 1.14 2001/05/14 13:25:54 hristov |
22 | stdlib.h included (for Alpha) | |
23 | ||
29803c51 | 24 | Revision 1.13 2001/05/10 12:26:31 jbarbosa |
25 | Totally reworked version of reconstruction algorithm. | |
26 | ||
ac6e04fc | 27 | Revision 1.12 2001/02/27 22:15:03 jbarbosa |
28 | Removed compiler warning. | |
29 | ||
2966f600 | 30 | Revision 1.11 2001/02/27 15:21:46 jbarbosa |
31 | Transition to SDigits. | |
32 | ||
b251a2b5 | 33 | Revision 1.10 2001/02/13 20:39:06 jbarbosa |
34 | Changes to make it work with new IO. | |
35 | ||
a5886574 | 36 | Revision 1.9 2001/01/22 21:39:11 jbarbosa |
37 | Several tune-ups | |
38 | ||
eb1ee126 | 39 | Revision 1.8 2000/11/15 15:52:53 jbarbosa |
40 | Turned on spot algorithm. | |
41 | ||
ceccff49 | 42 | Revision 1.7 2000/11/01 15:37:05 jbarbosa |
43 | Updated to use its own rec. point object. | |
44 | ||
4a5c8776 | 45 | Revision 1.6 2000/10/02 21:28:12 fca |
46 | Removal of useless dependecies via forward declarations | |
47 | ||
94de3818 | 48 | Revision 1.5 2000/06/30 16:30:28 dibari |
49 | Disabled writing to rechits. | |
50 | ||
a366fdbe | 51 | Revision 1.4 2000/06/15 15:46:59 jbarbosa |
52 | Corrected compilation errors on HP-UX (replaced pow with TMath::Power) | |
53 | ||
00df6e79 | 54 | Revision 1.3 2000/06/13 13:15:41 jbarbosa |
55 | Still some code cleanup done (variable names) | |
56 | ||
3a3df9e3 | 57 | Revision 1.2 2000/06/12 15:19:30 jbarbosa |
58 | Cleaned up version. | |
59 | ||
237c933d | 60 | Revision 1.1 2000/04/19 13:05:14 morsch |
61 | J. Barbosa's spot reconstruction algorithm. | |
62 | ||
c1076715 | 63 | */ |
64 | ||
29803c51 | 65 | #include <stdlib.h> |
66 | ||
c1076715 | 67 | |
68 | #include "AliRICH.h" | |
69 | #include "AliRICHPoints.h" | |
70 | #include "AliRICHDetect.h" | |
237c933d | 71 | #include "AliRICHHit.h" |
72 | #include "AliRICHDigit.h" | |
ac6e04fc | 73 | #include "AliRICHSegmentationV0.h" |
c1076715 | 74 | #include "AliRun.h" |
75 | #include "TParticle.h" | |
94de3818 | 76 | #include "TTree.h" |
c1076715 | 77 | #include "TMath.h" |
78 | #include "TRandom.h" | |
ac6e04fc | 79 | #include "TH3.h" |
80 | #include "TH2.h" | |
81 | #include "TCanvas.h" | |
c1076715 | 82 | |
ac6e04fc | 83 | #include "malloc.h" |
c1076715 | 84 | |
85 | ||
86 | ClassImp(AliRICHDetect) | |
87 | //___________________________________________ | |
88 | AliRICHDetect::AliRICHDetect() : TObject() | |
89 | { | |
237c933d | 90 | |
91 | // Default constructor | |
92 | ||
2685bf00 | 93 | fc1 = 0; |
94 | fc2 = 0; | |
95 | fc3 = 0; | |
96 | ||
c1076715 | 97 | } |
98 | ||
99 | //___________________________________________ | |
100 | AliRICHDetect::AliRICHDetect(const char *name, const char *title) | |
101 | : TObject() | |
102 | { | |
237c933d | 103 | |
ac6e04fc | 104 | |
105 | fc1= new TCanvas("c1","Reconstructed points",50,50,300,350); | |
106 | fc1->Divide(2,2); | |
107 | fc2= new TCanvas("c2","Reconstructed points after SPOT",50,50,300,350); | |
108 | fc2->Divide(2,2); | |
109 | fc3= new TCanvas("c3","Used Digits",50,50,300,350); | |
110 | //fc3->Divide(2,1); | |
111 | ||
112 | } | |
113 | ||
114 | //___________________________________________ | |
115 | AliRICHDetect::~AliRICHDetect() | |
116 | { | |
c1076715 | 117 | |
ac6e04fc | 118 | // Destructor |
119 | ||
c1076715 | 120 | } |
121 | ||
122 | ||
ac6e04fc | 123 | void AliRICHDetect::Detect(Int_t nev) |
c1076715 | 124 | { |
125 | ||
237c933d | 126 | // |
127 | // Detection algorithm | |
128 | ||
129 | ||
c1076715 | 130 | //printf("Detection started!\n"); |
ac6e04fc | 131 | Float_t omega,omega1,theta1,steptheta,stepphi,x,y,z,cx,cy,l,aux1,aux2,aux3,max,radius=0,meanradius=0; |
132 | Int_t maxi,maxj,maxk; | |
c1076715 | 133 | //Float_t theta,phi,realomega,realtheta; |
ac6e04fc | 134 | Float_t binomega, bintheta, binphi; |
135 | Int_t intomega, inttheta, intphi; | |
c1076715 | 136 | Int_t i,j,k; |
ac6e04fc | 137 | |
138 | AliRICH *pRICH = (AliRICH*)gAlice->GetDetector("RICH"); | |
139 | AliRICHSegmentationV0* segmentation; | |
140 | AliRICHChamber* iChamber; | |
141 | AliRICHGeometry* geometry; | |
142 | ||
143 | iChamber = &(pRICH->Chamber(0)); | |
144 | segmentation=(AliRICHSegmentationV0*) iChamber->GetSegmentationModel(0); | |
145 | geometry=iChamber->GetGeometryModel(); | |
ceccff49 | 146 | |
c1076715 | 147 | |
ac6e04fc | 148 | //const Float_t Noise_Level=0; //Noise Level in percentage of mesh points |
149 | //const Float_t t=0.6; //Softening of Noise Correction (factor) | |
c1076715 | 150 | |
ac6e04fc | 151 | const Float_t kPi=TMath::Pi(); |
c1076715 | 152 | |
ac6e04fc | 153 | const Float_t kHeight=geometry->GetRadiatorToPads(); //Distance from Radiator to Pads in centimeters |
154 | //printf("Distance to Pads:%f\n",kHeight); | |
ceccff49 | 155 | |
ac6e04fc | 156 | const Int_t kSpot=0; //number of passes with spot algorithm |
c1076715 | 157 | |
ac6e04fc | 158 | const Int_t kDimensionTheta=30; //Matrix dimension for angle Detection |
159 | const Int_t kDimensionPhi=45; | |
160 | const Int_t kDimensionOmega=100; | |
c1076715 | 161 | |
ac6e04fc | 162 | const Float_t SPOTp=1; //Percentage of spot action |
163 | const Float_t kMinOmega=20*kPi/180; | |
164 | const Float_t kMaxOmega=70*kPi/180; //Maximum Cherenkov angle to identify | |
165 | const Float_t kMinTheta=0; | |
166 | const Float_t kMaxTheta=15*kPi/180; | |
167 | //const Float_t kMaxTheta=0.1; | |
168 | const Float_t kMinPhi=0; | |
169 | const Float_t kMaxPhi=360*kPi/180; | |
170 | ||
eb1ee126 | 171 | |
ac6e04fc | 172 | Float_t kCorr=0.61; //Correction factor, accounting for aberration, refractive index, etc. |
173 | //const Float_t kCorr=.9369; //from 0 incidence | |
174 | //const Float_t kCorr=1; | |
175 | ||
176 | //TRandom* random=0; | |
177 | ||
178 | Float_t rechit[6]; //Reconstructed point data | |
179 | ||
c1076715 | 180 | |
c1076715 | 181 | |
ac6e04fc | 182 | //printf("Creating matrices\n"); |
183 | //Float_t point[kDimensionTheta][kDimensionPhi][kDimensionOmega]; | |
184 | //Float_t point1[kDimensionTheta][kDimensionPhi][kDimensionOmega]; | |
185 | //printf("Created matrices\n"); | |
186 | ||
187 | Int_t ***point = i3tensor(0,kDimensionTheta,0,kDimensionPhi,0,kDimensionOmega); | |
188 | Int_t ***point1 = i3tensor(0,kDimensionTheta,0,kDimensionPhi,0,kDimensionOmega); | |
c1076715 | 189 | |
ac6e04fc | 190 | //Int_t **point = new Int_t[kDimensionTheta][kDimensionPhi][kDimensionOmega]; |
191 | //Int_t **point1 = new Int_t[kDimensionTheta][kDimensionPhi][kDimensionOmega]; | |
192 | ||
193 | steptheta=(kMaxTheta-kMinTheta)/kDimensionTheta; | |
194 | stepphi=(kMaxPhi-kMinPhi)/kDimensionPhi; | |
195 | ||
196 | static TH3F *Points = new TH3F("Points","Reconstructed points 3D",kDimensionTheta,0,kDimensionTheta,kDimensionPhi,0,kDimensionPhi,kDimensionOmega,0,kDimensionOmega); | |
197 | static TH2F *ThetaPhi = new TH2F("ThetaPhi","Theta-Phi projection",kDimensionTheta,0,kDimensionTheta,kDimensionPhi,0,kDimensionPhi); | |
198 | static TH2F *OmegaTheta = new TH2F("OmegaTheta","Omega-Theta projection",kDimensionTheta,0,kDimensionTheta,kDimensionOmega,0,kDimensionOmega); | |
199 | static TH2F *OmegaPhi = new TH2F("OmegaPhi","Omega-Phi projection",kDimensionPhi,0,kDimensionPhi,kDimensionOmega,0,kDimensionOmega); | |
200 | static TH3F *SpotPoints = new TH3F("Points","Reconstructed points 3D, spot",kDimensionTheta,0,kDimensionTheta,kDimensionPhi,0,kDimensionPhi,kDimensionOmega,0,kDimensionOmega); | |
201 | static TH2F *SpotThetaPhi = new TH2F("ThetaPhi","Theta-Phi projection, spot",kDimensionTheta,0,kDimensionTheta,kDimensionPhi,0,kDimensionPhi); | |
202 | static TH2F *SpotOmegaTheta = new TH2F("OmegaTheta","Omega-Theta projection, spot",kDimensionTheta,0,kDimensionTheta,kDimensionOmega,0,kDimensionOmega); | |
203 | static TH2F *SpotOmegaPhi = new TH2F("OmegaPhi","Omega-Phi projection, spot",kDimensionPhi,0,kDimensionPhi,kDimensionOmega,0,kDimensionOmega); | |
204 | static TH2F *DigitsXY = new TH2F("DigitsXY","Pads used for reconstruction",150,-25,25,150,-25,25); | |
205 | Points->SetXTitle("theta"); | |
206 | Points->SetYTitle("phi"); | |
207 | Points->SetZTitle("omega"); | |
208 | ThetaPhi->SetXTitle("theta"); | |
209 | ThetaPhi->SetYTitle("phi"); | |
210 | OmegaTheta->SetXTitle("theta"); | |
211 | OmegaTheta->SetYTitle("omega"); | |
212 | OmegaPhi->SetXTitle("phi"); | |
213 | OmegaPhi->SetYTitle("omega"); | |
214 | SpotPoints->SetXTitle("theta"); | |
215 | SpotPoints->SetYTitle("phi"); | |
216 | SpotPoints->SetZTitle("omega"); | |
217 | SpotThetaPhi->SetXTitle("theta"); | |
218 | SpotThetaPhi->SetYTitle("phi"); | |
219 | SpotOmegaTheta->SetXTitle("theta"); | |
220 | SpotOmegaTheta->SetYTitle("omega"); | |
221 | SpotOmegaPhi->SetXTitle("phi"); | |
222 | SpotOmegaPhi->SetYTitle("omega"); | |
223 | ||
c1076715 | 224 | Int_t ntracks = (Int_t)gAlice->TreeH()->GetEntries(); |
225 | //Int_t ntrks = gAlice->GetNtrack(); | |
226 | ||
227 | Float_t trackglob[3]; | |
228 | Float_t trackloc[3]; | |
229 | ||
c1076715 | 230 | //printf("Area de uma elipse com teta 0 e Omega 45:%f",Area(0,45)); |
231 | ||
4a5c8776 | 232 | Int_t track; |
c1076715 | 233 | |
4a5c8776 | 234 | for (track=0; track<ntracks;track++) { |
c1076715 | 235 | gAlice->ResetHits(); |
236 | gAlice->TreeH()->GetEvent(track); | |
3a3df9e3 | 237 | TClonesArray *pHits = pRICH->Hits(); |
238 | if (pHits == 0) return; | |
239 | Int_t nhits = pHits->GetEntriesFast(); | |
c1076715 | 240 | if (nhits == 0) continue; |
2966f600 | 241 | //Int_t nent=(Int_t)gAlice->TreeD()->GetEntries(); |
ac6e04fc | 242 | gAlice->TreeD()->GetEvent(0); |
c1076715 | 243 | AliRICHHit *mHit = 0; |
244 | AliRICHDigit *points = 0; | |
245 | //Int_t npoints=0; | |
246 | ||
ac6e04fc | 247 | Int_t counter=0, counter1=0; |
c1076715 | 248 | //Initialization |
3a3df9e3 | 249 | for(i=0;i<kDimensionTheta;i++) |
c1076715 | 250 | { |
3a3df9e3 | 251 | for(j=0;j<kDimensionPhi;j++) |
c1076715 | 252 | { |
3a3df9e3 | 253 | for(k=0;k<kDimensionOmega;k++) |
c1076715 | 254 | { |
255 | counter++; | |
3a3df9e3 | 256 | point[i][j][k]=0; |
257 | //printf("Dimensions theta:%d, phi:%d, omega:%d",kDimensionTheta,kDimensionPhi,kDimensionOmega); | |
c1076715 | 258 | //printf("Resetting %d %d %d, time %d\n",i,j,k,counter); |
3a3df9e3 | 259 | //-Noise_Level*(Area(i*kPi/(18*dimension),k*kMaxOmega/dimension)-Area((i-1)*kPi/(18*dimension),(k-1)*kMaxOmega/dimension)); |
260 | //printf("n-%f",-Noise_Level*(Area(i*kPi/(18*dimension),k*kMaxOmega/dimension)-Area((i-1)*kPi/(18*dimension),(k-1)*kMaxOmega/dimension))); | |
c1076715 | 261 | } |
262 | } | |
263 | } | |
3a3df9e3 | 264 | mHit = (AliRICHHit*) pHits->UncheckedAt(0); |
c1076715 | 265 | //printf("Aqui vou eu\n"); |
6e585aa2 | 266 | Int_t nch = mHit->Chamber(); |
c1076715 | 267 | //printf("Aqui fui eu\n"); |
94de3818 | 268 | trackglob[0] = mHit->X(); |
269 | trackglob[1] = mHit->Y(); | |
270 | trackglob[2] = mHit->Z(); | |
c1076715 | 271 | |
ac6e04fc | 272 | printf("Chamber processed:%d\n",nch); |
ceccff49 | 273 | |
ac6e04fc | 274 | printf("Reconstructing particle at (global coordinates): %3.1f %3.1f %3.1f,\n",trackglob[0],trackglob[1],trackglob[2]); |
c1076715 | 275 | |
3a3df9e3 | 276 | iChamber = &(pRICH->Chamber(nch-1)); |
c1076715 | 277 | |
278 | //printf("Nch:%d\n",nch); | |
279 | ||
280 | iChamber->GlobaltoLocal(trackglob,trackloc); | |
281 | ||
ac6e04fc | 282 | printf("Reconstructing particle at (local coordinates) : %3.1f %3.1f %3.1f\n",trackloc[0],trackloc[1],trackloc[2]); |
c1076715 | 283 | |
284 | ||
285 | iChamber->LocaltoGlobal(trackloc,trackglob); | |
286 | ||
3a3df9e3 | 287 | //printf("Transformation 2: %3.1f %3.1f %3.1f\n",trackglob[0],trackglob[1],trackglob[2]); |
c1076715 | 288 | |
ac6e04fc | 289 | cx=trackloc[0]; |
290 | cy=trackloc[2]; | |
c1076715 | 291 | |
292 | ||
3a3df9e3 | 293 | TClonesArray *pDigits = pRICH->DigitsAddress(nch-1); |
294 | Int_t ndigits = pDigits->GetEntriesFast(); | |
c1076715 | 295 | |
296 | //printf("Got %d digits\n",ndigits); | |
297 | ||
ac6e04fc | 298 | counter=0; |
299 | printf("Starting calculations\n"); | |
300 | for(Float_t theta=0;theta<kMaxTheta;theta+=steptheta) | |
301 | { | |
302 | //printf("."); | |
303 | for(Float_t phi=0;phi<=kMaxPhi;phi+=stepphi) | |
304 | { | |
305 | //printf("Phi:%3.1f\n", phi*180/kPi); | |
306 | counter1=0; | |
c1076715 | 307 | for (Int_t dig=0;dig<ndigits;dig++) |
308 | { | |
3a3df9e3 | 309 | points=(AliRICHDigit*) pDigits->UncheckedAt(dig); |
6e585aa2 | 310 | segmentation->GetPadC(points->PadX(), points->PadY(),x, y, z); |
ac6e04fc | 311 | x=x-cx; |
312 | y=y-cy; | |
313 | radius=TMath::Sqrt(TMath::Power(x,2)+TMath::Power(y,2)); | |
314 | ||
315 | if(radius>4) | |
c1076715 | 316 | { |
ac6e04fc | 317 | //if(theta==0 && phi==0) |
318 | //{ | |
319 | //printf("Radius: %f, Max Radius: %f\n",radius,kCorr*kHeight*tan(theta+kMaxOmega)*3/4); | |
320 | meanradius+=radius; | |
321 | counter++; | |
322 | //} | |
c1076715 | 323 | |
ac6e04fc | 324 | if (radius<2*kHeight*tan(theta+kMaxOmega)*3/4) |
eb1ee126 | 325 | { |
ac6e04fc | 326 | |
327 | if(phi==0) | |
328 | { | |
329 | //printf("Radius: %f, Max Radius: %f\n",radius,2*kHeight*tan(theta+kMaxOmega)*3/4); | |
330 | //printf("Loaded digit %d with coordinates x:%f, y%f\n",dig,x,y); | |
331 | //printf("Using digit %d, for theta %f\n",dig,theta); | |
332 | } | |
333 | ||
334 | counter1++; | |
335 | ||
336 | l=kHeight/cos(theta); | |
337 | ||
338 | //x=x*kCorr; | |
339 | //y=y*kCorr; | |
340 | /*if(SnellAngle(theta+omega)<999) | |
341 | { | |
342 | //printf("(Angle)/(Snell angle):%f\n",(theta+omega)/SnellAngle(theta+omega)); | |
343 | x=x*(theta+omega)/SnellAngle(theta+omega); | |
344 | y=y*(theta+omega)/SnellAngle(theta+omega); | |
345 | } | |
346 | else | |
347 | { | |
348 | x=0; | |
349 | y=0; | |
350 | }*/ | |
351 | ||
352 | //main calculation | |
353 | ||
354 | DigitsXY->Fill(x,y,(float) 1); | |
355 | ||
356 | theta1=SnellAngle(theta)*1.5; | |
357 | ||
358 | aux1=-y*sin(phi)+x*cos(phi); | |
359 | aux2=y*cos(phi)+x*sin(phi); | |
360 | aux3=( TMath::Power(aux1,2)+TMath::Power(cos(theta1)*aux2 ,2))/TMath::Power(sin(theta1)*aux2+l,2); | |
361 | omega=atan(sqrt(aux3)); | |
362 | ||
363 | //omega is distorted, theta1 is distorted | |
364 | ||
365 | if(InvSnellAngle(theta+omega)<999) | |
366 | { | |
367 | omega1=InvSnellAngle(omega+theta1) - theta; | |
368 | //theta1=InvSnellAngle(omega+theta) - omega1; | |
369 | //omega1=kCorr*omega; | |
370 | ||
371 | kCorr=InvSnellAngle(omega+theta)/(omega+theta); | |
372 | theta1=kCorr*theta/1.4; | |
373 | //if(phi==0) | |
374 | //printf("Omega:%f Theta:%f Omega1:%f Theta1:%f ISA(o+t):%f ISA(t):%f\n",omega*180/kPi,theta*180/kPi,omega1*180/kPi,theta1*180/kPi,InvSnellAngle(omega+theta)*180/kPi,InvSnellAngle(theta)*180/kPi); | |
375 | } | |
376 | else | |
377 | { | |
378 | omega1=0; | |
379 | theta1=0; | |
380 | } | |
381 | ||
382 | //printf("Omega:%f\n",omega); | |
383 | ||
384 | ||
385 | //if(SnellAngle(theta+omega)<999) | |
386 | //printf("(Angle)/(Snell angle):%f\n",(theta+omega)/SnellAngle(theta+omega)); | |
387 | if(theta==0 && phi==0) | |
388 | { | |
389 | //printf("Omega: %f Corrected Omega: %f\n",omega, omega/kCorr); | |
390 | //omega=omega/kCorr; | |
391 | } | |
392 | ||
393 | //cout<<"\ni="<<i<<" theta="<<Int_t(2*theta*dimension/kPi)<<" phi="<<Int_t(2*phi*dimension/kPi)<<" omega="<<Int_t(2*omega*dimension/kPi)<<endl<<endl; | |
394 | //{Int_t lixo;cin>>lixo;} | |
395 | if(omega1<kMaxOmega && omega1>kMinOmega) | |
396 | { | |
397 | //printf("Omega found:%f\n",omega); | |
398 | omega1=omega1-kMinOmega; | |
399 | ||
400 | //printf("Omega: %f Theta: %3.1f Phi:%3.1f\n",omega, theta*180/kPi, phi*180/kPi); | |
401 | ||
402 | bintheta=theta1*kDimensionTheta/kMaxTheta; | |
403 | binphi=phi*kDimensionPhi/kMaxPhi; | |
404 | binomega=omega1*kDimensionOmega/(kMaxOmega-kMinOmega); | |
405 | ||
406 | if(Int_t(bintheta+0.5)==Int_t(bintheta)) | |
407 | inttheta=Int_t(bintheta); | |
408 | else | |
409 | inttheta=Int_t(bintheta+0.5); | |
410 | ||
411 | if(Int_t(binomega+0.5)==Int_t(binomega)) | |
412 | intomega=Int_t(binomega); | |
413 | else | |
414 | intomega=Int_t(binomega+0.5); | |
415 | ||
416 | if(Int_t(binphi+0.5)==Int_t(binphi)) | |
417 | intphi=Int_t(binphi); | |
418 | else | |
419 | intphi=Int_t(binphi+0.5); | |
420 | ||
421 | //printf("Point added at %d %d %d\n",inttheta,intphi,intomega); | |
422 | point[inttheta][intphi][intomega]+=1; | |
423 | //printf("Omega stored:%d\n",intomega); | |
424 | Points->Fill(inttheta,intphi,intomega,(float) 1); | |
425 | ThetaPhi->Fill(inttheta,intphi,(float) 1); | |
426 | OmegaTheta->Fill(inttheta,intomega,(float) 1); | |
427 | OmegaPhi->Fill(intphi,intomega,(float) 1); | |
428 | //printf("Filling at %d %d %d\n",Int_t(theta*kDimensionTheta/kMaxTheta),Int_t(phi*kDimensionPhi/kMaxPhi),Int_t(omega*kDimensionOmega/kMaxOmega)); | |
429 | } | |
430 | //if(omega<kMaxOmega)point[Int_t(theta)][Int_t(phi)][Int_t(omega)]+=1; | |
eb1ee126 | 431 | } |
c1076715 | 432 | } |
ac6e04fc | 433 | } |
c1076715 | 434 | } |
ac6e04fc | 435 | //printf("Used %d digits for theta %3.1f\n",counter1, theta*180/kPi); |
436 | } | |
437 | ||
438 | meanradius=meanradius/counter; | |
439 | printf("Mean radius:%f, counter:%d\n",meanradius,counter); | |
440 | rechit[5]=meanradius; | |
441 | printf("Used %d digits\n",counter1); | |
442 | //printf("\n"); | |
443 | ||
444 | if(nev<20) | |
445 | { | |
446 | if(nev==0) | |
447 | { | |
448 | fc1->cd(1); | |
449 | Points->Draw(); | |
450 | fc1->cd(2); | |
451 | ThetaPhi->Draw(); | |
452 | fc1->cd(3); | |
453 | OmegaTheta->Draw(); | |
454 | fc1->cd(4); | |
455 | OmegaPhi->Draw(); | |
456 | fc3->cd(); | |
457 | DigitsXY->Draw(); | |
458 | } | |
459 | else | |
460 | { | |
461 | //fc1->cd(1); | |
462 | //Points->Draw("same"); | |
463 | //fc1->cd(2); | |
464 | //ThetaPhi->Draw("same"); | |
465 | //fc1->cd(3); | |
466 | //OmegaTheta->Draw("same"); | |
467 | //fc1->cd(4); | |
468 | //OmegaPhi->Draw("same"); | |
469 | } | |
470 | } | |
471 | ||
c1076715 | 472 | |
c1076715 | 473 | //SPOT execute twice |
ceccff49 | 474 | for(Int_t s=0;s<kSpot;s++) |
c1076715 | 475 | { |
ceccff49 | 476 | printf(" Applying Spot algorithm, pass %d\n", s); |
477 | ||
c1076715 | 478 | //buffer copy |
3a3df9e3 | 479 | for(i=0;i<=kDimensionTheta;i++) |
ceccff49 | 480 | { |
481 | for(j=0;j<=kDimensionPhi;j++) | |
482 | { | |
483 | for(k=0;k<=kDimensionOmega;k++) | |
484 | { | |
485 | point1[i][j][k]=point[i][j][k]; | |
486 | } | |
487 | } | |
488 | } | |
489 | ||
c1076715 | 490 | //SPOT algorithm |
ac6e04fc | 491 | for(i=1;i<kDimensionTheta-1;i++) |
ceccff49 | 492 | { |
ac6e04fc | 493 | for(j=1;j<kDimensionPhi-1;j++) |
c1076715 | 494 | { |
ac6e04fc | 495 | for(k=1;k<kDimensionOmega-1;k++) |
c1076715 | 496 | { |
ceccff49 | 497 | if((point[i][k][j]>point[i-1][k][j])&&(point[i][k][j]>point[i+1][k][j])&& |
498 | (point[i][k][j]>point[i][k-1][j])&&(point[i][k][j]>point[i][k+1][j])&& | |
499 | (point[i][k][j]>point[i][k][j-1])&&(point[i][k][j]>point[i][k][j+1])) | |
500 | { | |
501 | //cout<<"SPOT"<<endl; | |
502 | //Execute SPOT on point | |
503 | 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])); | |
504 | point1[i-1][k][j]=Int_t(SPOTp*point[i-1][k][j]); | |
505 | point1[i+1][k][j]=Int_t(SPOTp*point[i+1][k][j]); | |
506 | point1[i][k-1][j]=Int_t(SPOTp*point[i][k-1][j]); | |
507 | point1[i][k+1][j]=Int_t(SPOTp*point[i][k+1][j]); | |
508 | point1[i][k][j-1]=Int_t(SPOTp*point[i][k][j-1]); | |
509 | point1[i][k][j+1]=Int_t(SPOTp*point[i][k][j+1]); | |
510 | } | |
c1076715 | 511 | } |
512 | } | |
ceccff49 | 513 | } |
514 | ||
c1076715 | 515 | //copy from buffer copy |
ac6e04fc | 516 | counter1=0; |
3a3df9e3 | 517 | for(i=1;i<kDimensionTheta;i++) |
ceccff49 | 518 | { |
519 | for(j=1;j<kDimensionPhi;j++) | |
520 | { | |
521 | for(k=1;k<kDimensionOmega;k++) | |
522 | { | |
523 | point[i][j][k]=point1[i][j][k]; | |
ac6e04fc | 524 | if(nev<20) |
525 | { | |
526 | if(s==kSpot-1) | |
527 | { | |
528 | if(point1[i][j][k] != 0) | |
529 | { | |
530 | SpotPoints->Fill(i,j,k,(float) point1[i][j][k]); | |
531 | //printf("Random number %f\n",random->Rndm(2)); | |
532 | //if(random->Rndm() < .2) | |
533 | //{ | |
534 | SpotThetaPhi->Fill(i,j,(float) point1[i][j][k]); | |
535 | SpotOmegaTheta->Fill(i,k,(float) point1[i][j][k]); | |
536 | SpotOmegaPhi->Fill(j,k,(float) point1[i][j][k]); | |
537 | counter1++; | |
538 | //} | |
539 | //printf("Filling at %d %d %d value %f\n",i,j,k,(float) point1[i][j][k]); | |
540 | } | |
541 | } | |
542 | } | |
ceccff49 | 543 | //if(point1[i][j][k] != 0) |
544 | //printf("Last transfer point: %d, point1, %d\n",point[i][j][k],point1[i][j][k]); | |
545 | } | |
546 | } | |
547 | } | |
548 | } | |
c1076715 | 549 | |
ac6e04fc | 550 | //printf("Filled %d cells\n",counter1); |
551 | ||
552 | if(nev<20) | |
553 | { | |
554 | if(nev==0) | |
555 | { | |
556 | fc2->cd(1); | |
557 | SpotPoints->Draw(); | |
558 | fc2->cd(2); | |
559 | SpotThetaPhi->Draw(); | |
560 | fc2->cd(3); | |
561 | SpotOmegaTheta->Draw(); | |
562 | fc2->cd(4); | |
563 | SpotOmegaPhi->Draw(); | |
564 | } | |
565 | else | |
566 | { | |
567 | //fc2->cd(1); | |
568 | //SpotPoints->Draw("same"); | |
569 | //fc2->cd(2); | |
570 | //SpotThetaPhi->Draw("same"); | |
571 | //fc2->cd(3); | |
572 | //SpotOmegaTheta->Draw("same"); | |
573 | //fc2->cd(4); | |
574 | //SpotOmegaPhi->Draw("same"); | |
575 | } | |
576 | } | |
577 | ||
c1076715 | 578 | |
579 | //Identification is equivalent to maximum determination | |
580 | max=0;maxi=0;maxj=0;maxk=0; | |
581 | ||
ceccff49 | 582 | printf(" Proceeding to identification"); |
c1076715 | 583 | |
ac6e04fc | 584 | for(i=0;i<kDimensionTheta;i++) |
585 | for(j=0;j<kDimensionPhi;j++) | |
586 | for(k=0;k<kDimensionOmega;k++) | |
ceccff49 | 587 | if(point[i][j][k]>max) |
588 | { | |
589 | //cout<<"maxi="<<i*90/dimension<<" maxj="<<j*90/dimension<<" maxk="<<k*kMaxOmega/dimension*180/kPi<<" max="<<max<<endl; | |
590 | maxi=i;maxj=j;maxk=k; | |
591 | max=point[i][j][k]; | |
592 | printf("."); | |
ac6e04fc | 593 | //printf("Max Omega %d, Max Theta %d, Max Phi %d (%d counts)\n",maxk,maxi,maxj,max); |
ceccff49 | 594 | } |
595 | printf("\n"); | |
c1076715 | 596 | |
ac6e04fc | 597 | Float_t FinalOmega = maxk*(kMaxOmega-kMinOmega)/kDimensionOmega; |
598 | Float_t FinalTheta = maxi*kMaxTheta/kDimensionTheta; | |
599 | Float_t FinalPhi = maxj*kMaxPhi/kDimensionPhi; | |
eb1ee126 | 600 | |
ac6e04fc | 601 | FinalOmega += kMinOmega; |
eb1ee126 | 602 | |
3a3df9e3 | 603 | //printf("Detected angle for height %3.1f and for center %3.1f %3.1f:%f\n",h,cx,cy,maxk*kPi/(kDimensionTheta*4)); |
ac6e04fc | 604 | printf(" Indentified angles: cerenkov - %f, theta - %3.1f, phi - %3.1f (%f activation)\n", FinalOmega, FinalTheta*180/kPi, FinalPhi*180/kPi, max); |
3a3df9e3 | 605 | //printf("Detected angle for height %3.1f and for center %3.1f %3.1f:%f\n",kHeight,cx,cy,maxk); |
c1076715 | 606 | |
c1076715 | 607 | //fscanf(omegas,"%f",&realomega); |
608 | //fscanf(thetas,"%f",&realtheta); | |
609 | //printf("Real Omega: %f",realomega); | |
3a3df9e3 | 610 | //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 | 611 | |
3a3df9e3 | 612 | //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 | 613 | |
614 | /*for(j=0;j<np;j++) | |
3a3df9e3 | 615 | pointpp(maxj*90/kDimensionTheta,maxi*90/kDimensionPhi,maxk*kMaxOmega/kDimensionOmega*180/kPi,cx,cy);//Generates a point on the elipse*/ |
c1076715 | 616 | |
617 | ||
618 | //Start filling rec. hits | |
619 | ||
ac6e04fc | 620 | rechit[0] = FinalTheta; |
621 | rechit[1] = 90*kPi/180 + FinalPhi; | |
622 | rechit[2] = FinalOmega; | |
c1076715 | 623 | rechit[3] = cx; |
624 | rechit[4] = cy; | |
ac6e04fc | 625 | |
626 | //CreatePoints(FinalTheta, 270*kPi/180 + FinalPhi, FinalOmega, kHeight); | |
627 | ||
c1076715 | 628 | //printf ("track %d, theta %f, phi %f, omega %f\n\n\n",track,rechit[0],rechit[1],rechit[2]); |
629 | ||
630 | // fill rechits | |
4a5c8776 | 631 | pRICH->AddRecHit3D(nch-1,rechit); |
ac6e04fc | 632 | //printf("rechit %f %f %f %f %f\n",rechit[0],rechit[1],rechit[2],rechit[3],rechit[4]); |
ceccff49 | 633 | //printf("Chamber:%d",nch); |
c1076715 | 634 | } |
635 | //printf("\n\n\n\n"); | |
636 | gAlice->TreeR()->Fill(); | |
c1076715 | 637 | TClonesArray *fRec; |
237c933d | 638 | for (i=0;i<kNCH;i++) { |
4a5c8776 | 639 | fRec=pRICH->RecHitsAddress3D(i); |
c1076715 | 640 | int ndig=fRec->GetEntriesFast(); |
ac6e04fc | 641 | printf ("Chamber %d, rings %d\n",i+1,ndig); |
c1076715 | 642 | } |
4a5c8776 | 643 | pRICH->ResetRecHits3D(); |
ac6e04fc | 644 | |
645 | free_i3tensor(point,0,kDimensionTheta,0,kDimensionPhi,0,kDimensionOmega); | |
646 | free_i3tensor(point1,0,kDimensionTheta,0,kDimensionPhi,0,kDimensionOmega); | |
c1076715 | 647 | } |
648 | ||
ac6e04fc | 649 | |
650 | ||
3a3df9e3 | 651 | Float_t AliRICHDetect:: Area(Float_t theta,Float_t omega) |
c1076715 | 652 | { |
237c933d | 653 | |
654 | // | |
655 | // Calculates area of an ellipse for given incidence angles | |
656 | ||
657 | ||
c1076715 | 658 | Float_t area; |
3a3df9e3 | 659 | const Float_t kHeight=9.25; //Distance from Radiator to Pads in pads |
c1076715 | 660 | |
00df6e79 | 661 | 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 | 662 | |
663 | return (area); | |
664 | } | |
665 | ||
c1076715 | 666 | |
ac6e04fc | 667 | Int_t ***AliRICHDetect::i3tensor(long nrl, long nrh, long ncl, long nch, long ndl, long ndh) |
668 | // allocate a Int_t 3tensor with range t[nrl..nrh][ncl..nch][ndl..ndh] | |
669 | { | |
670 | long i,j,nrow=nrh-nrl+1,ncol=nch-ncl+1,ndep=ndh-ndl+1; | |
671 | Int_t ***t; | |
672 | ||
673 | int NR_END=1; | |
c1076715 | 674 | |
ac6e04fc | 675 | // allocate pointers to pointers to rows |
676 | t=(Int_t ***) malloc((size_t)((nrow+NR_END)*sizeof(Int_t**))); | |
677 | if (!t) printf("allocation failure 1 in f3tensor()"); | |
678 | t += NR_END; | |
679 | t -= nrl; | |
680 | ||
681 | // allocate pointers to rows and set pointers to them | |
682 | t[nrl]=(Int_t **) malloc((size_t)((nrow*ncol+NR_END)*sizeof(Int_t*))); | |
683 | if (!t[nrl]) printf("allocation failure 2 in f3tensor()"); | |
684 | t[nrl] += NR_END; | |
685 | t[nrl] -= ncl; | |
c1076715 | 686 | |
ac6e04fc | 687 | // allocate rows and set pointers to them |
688 | t[nrl][ncl]=(Int_t *) malloc((size_t)((nrow*ncol*ndep+NR_END)*sizeof(Int_t))); | |
689 | if (!t[nrl][ncl]) printf("allocation failure 3 in f3tensor()"); | |
690 | t[nrl][ncl] += NR_END; | |
691 | t[nrl][ncl] -= ndl; | |
c1076715 | 692 | |
ac6e04fc | 693 | for(j=ncl+1;j<=nch;j++) t[nrl][j]=t[nrl][j-1]+ndep; |
694 | for(i=nrl+1;i<=nrh;i++) { | |
695 | t[i]=t[i-1]+ncol; | |
696 | t[i][ncl]=t[i-1][ncl]+ncol*ndep; | |
697 | for(j=ncl+1;j<=nch;j++) t[i][j]=t[i][j-1]+ndep; | |
c1076715 | 698 | } |
ac6e04fc | 699 | |
700 | // return pointer to array of pointers to rows | |
701 | return t; | |
702 | } | |
703 | ||
704 | void AliRICHDetect::free_i3tensor(int ***t, long nrl, long nrh, long ncl, long nch,long ndl, long ndh) | |
705 | // free a Int_t f3tensor allocated by i3tensor() | |
706 | { | |
707 | int NR_END=1; | |
708 | ||
709 | free((char*) (t[nrl][ncl]+ndl-NR_END)); | |
710 | free((char*) (t[nrl]+ncl-NR_END)); | |
711 | free((char*) (t+nrl-NR_END)); | |
712 | } | |
713 | ||
714 | ||
715 | Float_t AliRICHDetect:: SnellAngle(Float_t iangle) | |
716 | { | |
717 | ||
718 | // Compute the Snell angle | |
719 | ||
720 | Float_t nfreon = 1.295; | |
721 | Float_t nquartz = 1.585; | |
722 | Float_t ngas = 1; | |
723 | ||
724 | Float_t sinrangle; | |
725 | Float_t rangle; | |
726 | Float_t a1, a2; | |
727 | ||
728 | a1=nfreon/nquartz; | |
729 | a2=nquartz/ngas; | |
730 | ||
731 | sinrangle = a1*a2*sin(iangle); | |
732 | ||
733 | if(sinrangle>1.) { | |
734 | rangle = 999.; | |
735 | return rangle; | |
736 | } | |
737 | ||
738 | rangle = asin(sinrangle); | |
739 | return rangle; | |
740 | } | |
741 | ||
742 | Float_t AliRICHDetect:: InvSnellAngle(Float_t rangle) | |
743 | { | |
744 | ||
745 | // Compute the inverse Snell angle | |
c1076715 | 746 | |
ac6e04fc | 747 | Float_t nfreon = 1.295; |
748 | Float_t nquartz = 1.585; | |
749 | Float_t ngas = 1; | |
c1076715 | 750 | |
ac6e04fc | 751 | Float_t siniangle; |
752 | Float_t iangle; | |
753 | Float_t a1,a2; | |
c1076715 | 754 | |
ac6e04fc | 755 | a1=nfreon/nquartz; |
756 | a2=nquartz/ngas; | |
c1076715 | 757 | |
ac6e04fc | 758 | siniangle = sin(rangle)/(a1*a2); |
759 | iangle = asin(siniangle); | |
760 | ||
761 | if(siniangle>1.) { | |
762 | iangle = 999.; | |
763 | return iangle; | |
764 | } | |
765 | ||
766 | iangle = asin(siniangle); | |
767 | return iangle; | |
768 | } | |
c1076715 | 769 | |
770 | ||
ac6e04fc | 771 | |
772 | //________________________________________________________________________________ | |
773 | void AliRICHDetect::CreatePoints(Float_t theta, Float_t phi, Float_t omega, Float_t h) | |
774 | { | |
775 | ||
776 | // Create points along the ellipse equation | |
777 | ||
778 | Int_t s1,s2; | |
779 | Float_t fiducial=h*TMath::Tan(omega+theta), l=h/TMath::Cos(theta), xtrial, y=0, c0, c1, c2; | |
780 | //TRandom *random=new TRandom(); | |
781 | ||
782 | static TH2F *REllipse = new TH2F("REllipse","Reconstructed ellipses",150,-25,25,150,-25,25); | |
783 | ||
784 | for(Float_t i=0;i<1000;i++) | |
785 | { | |
786 | ||
787 | Float_t counter=0; | |
788 | ||
789 | c0=0;c1=0;c2=0; | |
790 | while((c1*c1-4*c2*c0)<=0 && counter<1000) | |
791 | { | |
792 | //Choose which side to go... | |
793 | if(i>250 && i<750) s1=1; | |
794 | //if (gRandom->Rndm(1)>.5) s1=1; | |
795 | else s1=-1; | |
796 | //printf("s1:%d\n",s1); | |
797 | //Trial a y | |
798 | y=s1*i*gRandom->Rndm(Int_t(fiducial/50)); | |
799 | //printf("Fiducial %f for omega:%f theta:%f phi:%f\n",fiducial,omega,theta,fphi); | |
800 | Float_t alfa1=theta; | |
801 | Float_t theta1=phi; | |
802 | Float_t omega1=omega; | |
803 | ||
804 | //Solve the eq for a trial x | |
805 | 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); | |
806 | 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); | |
807 | 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); | |
808 | //cout<<"Trial: y="<<y<<"c0="<<c0<<" c1="<<c1<<" c2="<<c2<<endl; | |
809 | //printf("Result:%f\n\n",c1*c1-4*c2*c0); | |
810 | //i+=.01; | |
811 | counter +=1; | |
812 | } | |
813 | ||
814 | if (counter>=1000) | |
815 | y=0; | |
816 | ||
817 | //Choose which side to go... | |
818 | //if(gRandom->Rndm(1)>.5) s=1; | |
819 | //else s=-1; | |
820 | if(i>500) s2=1; | |
821 | //if (gRandom->Rndm(1)>.5) s2=1; | |
822 | else s2=-1; | |
823 | xtrial=(-c1+s2*TMath::Sqrt(c1*c1-4*c2*c0))/(2*c2); | |
824 | //cout<<"x="<<xtrial<<" y="<<cy+y<<endl; | |
825 | //printf("Coordinates: %f %f\n",xtrial,fCy+y); | |
826 | ||
827 | REllipse->Fill(xtrial,y); | |
828 | ||
829 | //printf("Coordinates: %f %f %f\n",vectorGlob[0],vectorGlob[1],vectorGlob[2]); | |
830 | } | |
831 | ||
832 | fc3->cd(2); | |
833 | REllipse->Draw(); | |
834 | } |