]>
Commit | Line | Data |
---|---|---|
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 | $Log$ | |
ad185d05 | 18 | Revision 1.7 2001/02/13 20:13:20 jbarbosa |
19 | Moved setting of variables to constructor. Init is now responsible for calculating padplane dimensions. | |
20 | Corrected all calculations for padplane definition. | |
21 | ||
9350cdcb | 22 | Revision 1.6 2001/01/24 21:00:29 jbarbosa |
23 | Redefinition of sectors and pad coordinates/real coordinates transformations. | |
24 | ||
e8ddcc84 | 25 | Revision 1.5 2001/01/22 21:37:39 jbarbosa |
26 | Added parametrised definiton sectors | |
27 | ||
2c871982 | 28 | Revision 1.4 2001/01/22 21:35:39 jbarbosa |
29 | Added deadzone size to data members | |
30 | ||
6d4af9e4 | 31 | Revision 1.3 2000/10/03 21:44:09 morsch |
32 | Use AliSegmentation and AliHit abstract base classes. | |
33 | ||
a2f7eaf6 | 34 | Revision 1.2 2000/10/02 15:48:55 jbarbosa |
35 | Fixed coding conventions. | |
36 | ||
72e468a5 | 37 | Revision 1.1 2000/06/12 15:34:28 jbarbosa |
38 | Cleaned up version. | |
39 | ||
237c933d | 40 | */ |
41 | ||
42 | #include "AliRICHSegmentationV1.h" | |
43 | ||
44 | ||
45 | //-------------------------------------------------------- | |
46 | ClassImp(AliRICHSegmentationV1) | |
47 | ||
48 | //________________________________________________________________________________ | |
49 | AliRICHSegmentationV1::AliRICHSegmentationV1() | |
50 | { | |
51 | ||
52 | // Default constructor for AliRICHSegmantionV1 (with dead zones) | |
53 | ||
ad185d05 | 54 | fNpx=144; // number of pads along X direction |
55 | fNpy=160; // number of pads along Y direction | |
56 | fDeadZone=3.0; // space between CsI photocathods in cm | |
57 | fDpx=0.84; // pad width in cm | |
58 | fDpy=0.80; // pad heights in cm | |
59 | fWireD=0.84/2; | |
60 | fSector=-1; | |
237c933d | 61 | } |
62 | ||
9350cdcb | 63 | void AliRICHSegmentationV1::Init(Int_t id) |
64 | { | |
237c933d | 65 | |
9350cdcb | 66 | // Initialisation of chambers |
237c933d | 67 | |
9350cdcb | 68 | //printf("* Initialising SegmentationV1 (dead zones) in chamber %d *\n",id+1); |
69 | ||
70 | // parametrised definition | |
71 | ||
72 | Float_t csi_length = fNpy*fDpy + fDeadZone; | |
73 | Float_t csi_width = fNpx*fDpx + 2*fDeadZone; | |
74 | ||
75 | fPadPlane_Width = (csi_width - 2*fDeadZone)/3; | |
76 | fPadPlane_Length = (csi_length - fDeadZone)/2; | |
77 | ||
78 | } | |
237c933d | 79 | |
80 | // calculate sector from x-y coordinates | |
81 | ||
9350cdcb | 82 | Int_t AliRICHSegmentationV1::Sector(Float_t x, Float_t y) |
237c933d | 83 | { |
84 | ||
85 | // Calculate in which sector is the hit | |
6d4af9e4 | 86 | |
237c933d | 87 | fSector=-1; |
88 | ||
6d4af9e4 | 89 | //old numerical definition |
90 | ||
91 | /*if (x<-fDeadZone/2) | |
237c933d | 92 | { |
93 | if (y>22.75) | |
94 | { | |
95 | if (y<63.1) | |
96 | fSector=0; | |
97 | } | |
98 | if (y<20.15) | |
99 | { | |
100 | if (y>(-20.15)) | |
101 | fSector=2; | |
102 | } | |
103 | if (y<(-22.75)) | |
104 | { | |
105 | if (y>(-63.1)) | |
106 | fSector=4; | |
107 | } | |
108 | } | |
6d4af9e4 | 109 | else if (x>fDeadZone/2) |
237c933d | 110 | { |
111 | if (y>22.75) | |
112 | { | |
113 | if (y<63.1) | |
114 | fSector=1; | |
115 | } | |
116 | if (y<20.15) | |
117 | { | |
118 | if (y>(-20.15)) | |
119 | fSector=3; | |
120 | } | |
121 | if (y<(-22.75)) | |
122 | { | |
123 | if (y>(-63.1)) | |
124 | fSector=5; | |
125 | } | |
6d4af9e4 | 126 | }*/ |
127 | ||
9350cdcb | 128 | //Parametrized definition |
6d4af9e4 | 129 | |
9350cdcb | 130 | if (y<-fDeadZone/2) |
6d4af9e4 | 131 | { |
9350cdcb | 132 | if (x> fPadPlane_Width/2 +fDeadZone) |
6d4af9e4 | 133 | { |
9350cdcb | 134 | if ( x<fPadPlane_Width/2 +fDeadZone + fPadPlane_Width) |
6d4af9e4 | 135 | fSector=0; |
136 | } | |
9350cdcb | 137 | if (x< fPadPlane_Width/2) |
6d4af9e4 | 138 | { |
9350cdcb | 139 | if (x> -( fPadPlane_Width/2)) |
6d4af9e4 | 140 | fSector=2; |
141 | } | |
9350cdcb | 142 | if (x< -( fPadPlane_Width/2 +fDeadZone)) |
6d4af9e4 | 143 | { |
9350cdcb | 144 | if (x> -( fPadPlane_Width/2 +fDeadZone + fPadPlane_Width)) |
6d4af9e4 | 145 | fSector=4; |
146 | } | |
147 | } | |
9350cdcb | 148 | else if (y>fDeadZone/2) |
6d4af9e4 | 149 | { |
9350cdcb | 150 | if (x> fPadPlane_Width/2 +fDeadZone) |
6d4af9e4 | 151 | { |
9350cdcb | 152 | if (x< fPadPlane_Width/2 +fDeadZone + fPadPlane_Width) |
153 | fSector=1; | |
6d4af9e4 | 154 | } |
9350cdcb | 155 | if (x< fPadPlane_Width/2) |
6d4af9e4 | 156 | { |
9350cdcb | 157 | if (x> -( fPadPlane_Width/2)) |
158 | fSector=3; | |
6d4af9e4 | 159 | } |
9350cdcb | 160 | if (x< -( fPadPlane_Width/2 +fDeadZone)) |
6d4af9e4 | 161 | { |
9350cdcb | 162 | if (x> -( fPadPlane_Width/2 +fDeadZone + fPadPlane_Width)) |
163 | fSector=5; | |
6d4af9e4 | 164 | } |
237c933d | 165 | } |
9350cdcb | 166 | |
237c933d | 167 | |
168 | //if (fSector==2) | |
169 | //printf("x:%f, y:%f, sector:%d\n",x,y,fSector); | |
170 | ||
171 | return fSector; | |
172 | } | |
173 | ||
174 | ||
a2f7eaf6 | 175 | void AliRICHSegmentationV1::GetPadI(Float_t x, Float_t y, Int_t &ix, Int_t &iy) |
237c933d | 176 | { |
177 | // returns pad coordinates (ix,iy) for given real coordinates (x,y) | |
178 | // | |
179 | // Please check origin of pad numbering !!! | |
180 | ||
181 | Int_t sector=Sector(x,y); | |
182 | ||
183 | //printf("Sector: %d\n",sector); | |
184 | ||
237c933d | 185 | if (sector==0) |
186 | { | |
187 | //ix = (x>0)? Int_t(x/fDpx)+1 : Int_t(x/fDpx); | |
188 | //iy = (y>0)? Int_t(y/fDpy)+1 : Int_t(y/fDpy); | |
9350cdcb | 189 | ix = Int_t ((x-fDeadZone)/fDpx); |
190 | iy = Int_t ((y+fDeadZone/2)/fDpy)-1; | |
237c933d | 191 | } |
192 | if (sector==1) | |
193 | { | |
9350cdcb | 194 | ix = Int_t ((x-fDeadZone)/fDpx); |
195 | iy = Int_t ((y-fDeadZone/2)/fDpy); | |
237c933d | 196 | } |
197 | if (sector==2) | |
198 | { | |
9350cdcb | 199 | ix = (x>=0)? ix = Int_t (x/fDpx) : ix = Int_t (x/fDpx)-1; |
200 | iy = Int_t ((y+fDeadZone/2)/fDpy)-1; | |
237c933d | 201 | } |
202 | if (sector==3) | |
203 | { | |
9350cdcb | 204 | ix = (x>=0)? ix = Int_t (x/fDpx) : ix = Int_t (x/fDpx)-1; |
205 | iy = Int_t ((y-fDeadZone/2)/fDpy); | |
237c933d | 206 | } |
207 | if (sector==4) | |
208 | { | |
9350cdcb | 209 | ix = Int_t ((x+fDeadZone)/fDpx)-1; |
210 | iy = Int_t ((y+fDeadZone/2)/fDpy)-1; | |
237c933d | 211 | } |
212 | if (sector==5) | |
213 | { | |
9350cdcb | 214 | ix = Int_t ((x+fDeadZone)/fDpx)-1; |
215 | iy = Int_t ((y-fDeadZone/2)/fDpy); | |
237c933d | 216 | } |
9350cdcb | 217 | |
237c933d | 218 | |
219 | //ix = Int_t (x/fDpx); | |
220 | //iy = Int_t (y/fDpy); | |
221 | ||
222 | //ix = (x>0)? Int_t(x/fDpx)+1 : Int_t(x/fDpx); | |
223 | //iy = (y>0)? Int_t(y/fDpy)+1 : Int_t(y/fDpy); | |
224 | ||
225 | if (sector==-1) | |
226 | { | |
72e468a5 | 227 | ix = fIxmax; |
228 | iy = fIymax; | |
237c933d | 229 | } |
230 | ||
231 | if (iy > fNpy) iy= fNpy; | |
232 | if (iy < -fNpy) iy=-fNpy; | |
233 | if (ix > fNpx) ix= fNpx; | |
234 | if (ix < -fNpx) ix=-fNpx; | |
235 | } | |
236 | ||
237 | void AliRICHSegmentationV1:: | |
a2f7eaf6 | 238 | GetPadC(Int_t ix, Int_t iy, Float_t &x, Float_t &y) |
237c933d | 239 | { |
240 | // returns real coordinates (x,y) for given pad coordinates (ix,iy) | |
241 | // | |
242 | ||
243 | //Int_t sector=Sector(ix*.8,iy*.84); | |
244 | ||
245 | Int_t sector=-1; | |
246 | ||
6d4af9e4 | 247 | // old numerical definition |
248 | ||
249 | /*if (ix<=0) | |
237c933d | 250 | { |
251 | if (iy<=72) | |
252 | { | |
253 | if (iy>24) | |
254 | sector=0; | |
255 | } | |
256 | if (iy<=24) | |
257 | { | |
258 | if (iy>-24) | |
259 | sector=2; | |
260 | } | |
261 | if (iy<=-24) | |
262 | { | |
263 | if (iy>-72) | |
264 | sector=4; | |
265 | } | |
266 | } | |
267 | if (ix>0) | |
268 | { | |
269 | if (iy<=72) | |
270 | { | |
271 | if (iy>24) | |
272 | sector=1; | |
273 | } | |
274 | if (iy<=24) | |
275 | { | |
276 | if (iy>-24) | |
277 | sector=3; | |
278 | } | |
279 | if (iy<=-24) | |
280 | { | |
281 | if (iy>-72) | |
282 | sector=5; | |
283 | } | |
6d4af9e4 | 284 | }*/ |
285 | ||
286 | // parametrised definition | |
287 | ||
9350cdcb | 288 | Float_t padplane_width = fNpx/3; |
6d4af9e4 | 289 | |
9350cdcb | 290 | if (iy<0) |
6d4af9e4 | 291 | { |
9350cdcb | 292 | if (ix < fNpx/2) |
6d4af9e4 | 293 | { |
9350cdcb | 294 | if (ix >= padplane_width/2) |
6d4af9e4 | 295 | sector=0; |
296 | } | |
9350cdcb | 297 | if (ix< padplane_width/2) |
6d4af9e4 | 298 | { |
9350cdcb | 299 | if (ix >= -(padplane_width/2)) |
6d4af9e4 | 300 | sector=2; |
301 | } | |
9350cdcb | 302 | if (ix >= -(fNpx/2)) |
6d4af9e4 | 303 | { |
9350cdcb | 304 | if (ix < -(padplane_width/2)) |
6d4af9e4 | 305 | sector=4; |
306 | } | |
307 | } | |
9350cdcb | 308 | if (iy>=0) |
6d4af9e4 | 309 | { |
9350cdcb | 310 | if (ix < fNpx/2) |
6d4af9e4 | 311 | { |
9350cdcb | 312 | if (ix >= padplane_width/2) |
313 | sector=1; | |
6d4af9e4 | 314 | } |
9350cdcb | 315 | if (ix< padplane_width/2) |
6d4af9e4 | 316 | { |
9350cdcb | 317 | if (ix >= -(padplane_width/2)) |
318 | sector=3; | |
6d4af9e4 | 319 | } |
9350cdcb | 320 | if (ix >= -(fNpx/2)) |
6d4af9e4 | 321 | { |
9350cdcb | 322 | if (ix < -(padplane_width/2)) |
323 | sector=5; | |
6d4af9e4 | 324 | } |
325 | } | |
237c933d | 326 | |
327 | if (sector==0) | |
328 | { | |
329 | //x = (ix>0) ? Float_t(ix*fDpx)-fDpx/2. : Float_t(ix*fDpx)-fDpx/2.; | |
330 | //y = (iy>0) ? Float_t(iy*fDpy)-fDpy/2. : Float_t(iy*fDpy)-fDpy/2.; | |
9350cdcb | 331 | x = Float_t(ix)*fDpx+fDpx/2+fDeadZone; |
332 | y = Float_t(iy)*fDpy+fDpy/2-fDeadZone/2; | |
237c933d | 333 | } |
334 | if (sector==1) | |
335 | { | |
9350cdcb | 336 | x = Float_t(ix)*fDpx+fDpx/2+fDeadZone; |
337 | y = Float_t(iy)*fDpy+fDpy/2+fDeadZone/2; | |
237c933d | 338 | } |
339 | if (sector==2) | |
340 | { | |
9350cdcb | 341 | x = (ix>=0) ? x = Float_t(ix)*fDpx+fDpx/2 : x = Float_t(ix)*fDpx+fDpx/2; |
342 | y = Float_t(iy)*fDpy+fDpy/2-fDeadZone/2; | |
237c933d | 343 | } |
344 | if (sector==3) | |
345 | { | |
9350cdcb | 346 | x = (ix>=0) ? x = Float_t(ix)*fDpx+fDpx/2 : x = Float_t(ix)*fDpx+fDpx/2; |
347 | y = Float_t(iy)*fDpy+fDpy/2+fDeadZone/2; | |
237c933d | 348 | } |
349 | if (sector==4) | |
350 | { | |
9350cdcb | 351 | x = Float_t(ix)*fDpx+fDpx/2-fDeadZone; |
352 | y = Float_t(iy)*fDpy+fDpy/2-fDeadZone/2; | |
237c933d | 353 | } |
354 | if (sector==5) | |
355 | { | |
9350cdcb | 356 | x = Float_t(ix)*fDpx+fDpx/2-fDeadZone; |
357 | y = Float_t(iy)*fDpy+fDpy/2+fDeadZone/2; | |
237c933d | 358 | } |
9350cdcb | 359 | |
237c933d | 360 | |
361 | //if (sector==2) | |
362 | //printf("fSector:%d x:%f y:%f\n",fSector,x,y); | |
363 | ||
364 | } | |
365 | ||
366 | void AliRICHSegmentationV1:: | |
367 | IntegrationLimits(Float_t& x1,Float_t& x2,Float_t& y1, Float_t& y2) | |
368 | { | |
369 | ||
370 | // Calculates integration limits | |
371 | ||
372 | /* | |
72e468a5 | 373 | x1=fXt-fX-fDpx/2.; |
237c933d | 374 | x2=x1+fDpx; |
72e468a5 | 375 | y1=fYt-fY-fDpy/2.; |
237c933d | 376 | y2=y1+fDpy; |
377 | */ | |
72e468a5 | 378 | //Int_t sector=Sector(fX,fY); |
237c933d | 379 | |
380 | //printf("Sector:%d\n",sector); | |
381 | ||
72e468a5 | 382 | x1=fXhit-fX-fDpx/2.; |
237c933d | 383 | x2=x1+fDpx; |
72e468a5 | 384 | y1=fYhit-fY-fDpy/2.; |
237c933d | 385 | y2=y1+fDpy; |
386 | } | |
a2f7eaf6 | 387 | |
388 | ||
389 | ||
390 | ||
391 | ||
392 |