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237c933d | 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 | $Log$ | |
4f17f810 | 18 | Revision 1.1 2000/06/12 15:21:57 jbarbosa |
19 | Cleaned up version. | |
20 | ||
237c933d | 21 | */ |
22 | ||
23 | #include "AliRICHEllipse.h" | |
24 | #include "AliRICH.h" | |
25 | #include "AliRun.h" | |
4f17f810 | 26 | #include "AliRICHPatRec.h" |
237c933d | 27 | |
28 | #include <TRandom.h> | |
29 | ||
30 | ClassImp(AliRICHEllipse) | |
31 | ||
32 | //________________________________________________________________________________ | |
33 | AliRICHEllipse::AliRICHEllipse() | |
34 | { | |
35 | ||
36 | // Default Constructor for a RICH ellipse | |
37 | ||
38 | fCx = 0; | |
39 | fCy = 0; | |
40 | fOmega = 0; | |
41 | fTheta = 0; | |
42 | fPhi = 0; | |
43 | fh= 0; | |
44 | } | |
45 | ||
46 | //________________________________________________________________________________ | |
47 | AliRICHEllipse::~AliRICHEllipse() | |
48 | { | |
49 | ||
50 | // Destructor | |
51 | ||
52 | fCx = 0; | |
53 | fCy = 0; | |
54 | fOmega = 0; | |
55 | fTheta = 0; | |
56 | fPhi = 0; | |
57 | fh= 0; | |
58 | } | |
59 | ||
60 | ||
61 | //________________________________________________________________________________ | |
4f17f810 | 62 | AliRICHEllipse::AliRICHEllipse(Float_t cx, Float_t cy, Float_t omega, Float_t theta, Float_t phi, Float_t emiss) |
237c933d | 63 | { |
64 | ||
65 | // Constructor for a RICH ellipse | |
66 | ||
67 | fCx = cx; | |
68 | fCy = cy; | |
69 | fOmega = omega; | |
70 | fTheta = theta; | |
71 | fPhi = phi; | |
4f17f810 | 72 | fEmissPoint = emiss; |
237c933d | 73 | fh=11.25; |
74 | } | |
75 | ||
76 | //________________________________________________________________________________ | |
4f17f810 | 77 | /*void AliRICHEllipse::CreatePoints(Int_t chamber) |
237c933d | 78 | { |
79 | ||
80 | // Create points along the ellipse equation | |
81 | ||
82 | Int_t s1,s2; | |
83 | Float_t fiducial=fh*TMath::Tan(fOmega+fTheta), l=fh/TMath::Cos(fTheta), xtrial, y=0, c0, c1, c2; | |
84 | //TRandom *random=new TRandom(); | |
85 | ||
86 | AliRICH *pRICH = (AliRICH*)gAlice->GetModule("RICH"); | |
87 | AliRICHChamber* iChamber; | |
88 | ||
89 | iChamber = &(pRICH->Chamber(chamber)); | |
90 | //cout<<"fiducial="<<fiducial<<endl; | |
91 | ||
92 | for(Float_t i=0;i<1000;i++) | |
93 | { | |
94 | ||
95 | Float_t counter=0; | |
96 | ||
97 | c0=0;c1=0;c2=0; | |
98 | while((c1*c1-4*c2*c0)<=0 && counter<1000) | |
99 | { | |
100 | //Choose which side to go... | |
101 | if(i>250 && i<750) s1=1; | |
102 | //if (gRandom->Rndm(1)>.5) s1=1; | |
103 | else s1=-1; | |
104 | //printf("s1:%d\n",s1); | |
105 | //Trial a y | |
106 | y=s1*i*gRandom->Rndm(Int_t(fiducial/50)); | |
107 | //printf("Fiducial %f for omega:%f theta:%f phi:%f\n",fiducial,fOmega,fTheta,fPhi); | |
108 | Float_t alfa1=fTheta; | |
109 | Float_t theta1=fPhi; | |
110 | Float_t omega1=fOmega; | |
111 | ||
112 | //Solve the eq for a trial x | |
113 | 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); | |
114 | 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); | |
115 | 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); | |
116 | //cout<<"Trial: y="<<y<<"c0="<<c0<<" c1="<<c1<<" c2="<<c2<<endl; | |
117 | //printf("Result:%f\n\n",c1*c1-4*c2*c0); | |
118 | //i+=.01; | |
119 | counter +=1; | |
120 | } | |
121 | ||
122 | if (counter>=1000) | |
123 | y=0; | |
124 | ||
125 | //Choose which side to go... | |
126 | //if(gRandom->Rndm(1)>.5) s=1; | |
127 | //else s=-1; | |
128 | if(i>500) s2=1; | |
129 | //if (gRandom->Rndm(1)>.5) s2=1; | |
130 | else s2=-1; | |
131 | xtrial=fCx+(-c1+s2*TMath::Sqrt(c1*c1-4*c2*c0))/(2*c2); | |
132 | //cout<<"x="<<xtrial<<" y="<<cy+y<<endl; | |
133 | //printf("Coordinates: %f %f\n",xtrial,fCy+y); | |
134 | ||
135 | Float_t vectorLoc[3]={xtrial,6.276,(fCy+y)}; | |
136 | Float_t vectorGlob[3]; | |
137 | iChamber->LocaltoGlobal(vectorLoc,vectorGlob); | |
138 | SetPoint(i,vectorGlob[0],vectorGlob[1],vectorGlob[2]); | |
139 | //printf("Coordinates: %f %f %f\n",vectorGlob[0],vectorGlob[1],vectorGlob[2]); | |
140 | } | |
4f17f810 | 141 | }*/ |
142 | ||
143 | ||
144 | void AliRICHEllipse::CerenkovRingDrawing(Int_t chamber,Int_t track) | |
145 | { | |
146 | ||
147 | //to draw Cherenkov ring by known Cherenkov angle | |
148 | ||
149 | Int_t nmaxdegrees; | |
150 | Int_t Nphpad; | |
151 | Float_t phpad; | |
152 | Float_t nfreonave, nquartzave; | |
153 | Float_t aveEnerg; | |
154 | Float_t energy[2]; | |
155 | Float_t e1, e2, f1, f2; | |
156 | Float_t pointsOnCathode[3]; | |
157 | ||
158 | printf("Drawing ring in chamber:%d\n",chamber); | |
159 | ||
160 | ||
161 | AliRICH *pRICH = (AliRICH*)gAlice->GetModule("RICH"); | |
162 | AliRICHChamber* iChamber; | |
163 | ||
164 | iChamber = &(pRICH->Chamber(chamber)); | |
165 | ||
166 | AliRICHPatRec *PatRec = new AliRICHPatRec; | |
167 | PatRec->TrackParam(track,chamber); | |
168 | ||
169 | printf("Just created PateRec\n"); | |
170 | ||
171 | //parameters to calculate freon window refractive index vs. energy | |
172 | ||
173 | Float_t a = 1.177; | |
174 | Float_t b = 0.0172; | |
175 | ||
176 | //parameters to calculate quartz window refractive index vs. energy | |
177 | /* | |
178 | Energ[0] = 5.6; | |
179 | Energ[1] = 7.7; | |
180 | */ | |
181 | energy[0] = 5.0; | |
182 | energy[1] = 8.0; | |
183 | e1 = 10.666; | |
184 | e2 = 18.125; | |
185 | f1 = 46.411; | |
186 | f2 = 228.71; | |
187 | ||
237c933d | 188 | |
4f17f810 | 189 | /*Float_t nquartz = 1.585; |
190 | Float_t ngas = 1.; | |
191 | Float_t nfreon = 1.295; | |
192 | Float_t value; | |
193 | */ | |
237c933d | 194 | |
195 | ||
196 | ||
4f17f810 | 197 | nmaxdegrees = 360; |
198 | ||
199 | for (Nphpad=0; Nphpad<nmaxdegrees;Nphpad++) { | |
200 | ||
201 | phpad = (360./(Float_t)nmaxdegrees)*(Float_t)Nphpad; | |
202 | ||
203 | aveEnerg = (energy[0]+energy[1])/2.; | |
204 | //aveEnerg = 6.5; | |
205 | ||
206 | ||
207 | nfreonave = a+b*aveEnerg; | |
208 | nquartzave = sqrt(1+(f1/(TMath::Power(e1,2)-TMath::Power(aveEnerg,2)))+ | |
209 | (f2/(TMath::Power(e2,2)-TMath::Power(aveEnerg,2)))); | |
210 | ||
211 | //nfreonave = 1.295; | |
212 | //nquartzave = 1.585; | |
213 | ||
214 | printf("Calling DistancefromMip %f %f \n",fEmissPoint,fOmega); | |
215 | ||
216 | //Float_t dummy = | |
217 | PatRec->DistanceFromMip(nfreonave, nquartzave,fEmissPoint,fOmega, phpad, pointsOnCathode); | |
218 | ||
219 | //Float_t points[3]; | |
220 | ||
221 | //points = pointsOnCathode; | |
222 | ||
223 | ||
224 | //printf(" values %f %f %f\n",points[0],points[1],points[2]); | |
225 | ||
226 | Float_t vectorLoc[3]={pointsOnCathode[0],pointsOnCathode[2],pointsOnCathode[1]}; | |
227 | Float_t vectorGlob[3]; | |
228 | iChamber->LocaltoGlobal(vectorLoc,vectorGlob); | |
229 | SetPoint(Nphpad,vectorGlob[0],vectorGlob[1],vectorGlob[2]); | |
230 | //fCoordEllipse[0][Nphpad] = pointsOnCathode[0]; | |
231 | //fCoordEllipse[1][Nphpad] = pointsOnCathode[1]; | |
232 | ||
233 | printf(" values %f %f \n",pointsOnCathode[0],pointsOnCathode[1]); | |
234 | ||
235 | } | |
236 | ||
237 | } | |
238 | ||
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