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4c503756 | 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 | $Log$ | |
9e1a0ddb | 18 | Revision 1.9 2001/01/26 21:25:48 morsch |
19 | Empty default constructors and. | |
20 | ||
e9e4cdf2 | 21 | Revision 1.8 2001/01/17 20:53:40 hristov |
22 | Destructors corrected to avoid memory leaks | |
23 | ||
c2c0190f | 24 | Revision 1.7 2000/12/21 22:12:41 morsch |
25 | Clean-up of coding rule violations, | |
26 | ||
de05461e | 27 | Revision 1.6 2000/11/06 09:20:43 morsch |
28 | AliMUON delegates part of BuildGeometry() to AliMUONSegmentation using the | |
29 | Draw() method. This avoids code and parameter replication. | |
30 | ||
aaf4addd | 31 | Revision 1.5 2000/10/26 19:32:04 morsch |
32 | Problem with iteration over y-pads for 2nd cathode corrected. | |
33 | ||
d4ee3c3e | 34 | Revision 1.4 2000/10/25 19:56:55 morsch |
35 | Handle correctly slats with less than 3 segmentation zones. | |
36 | ||
f30dea32 | 37 | Revision 1.3 2000/10/22 16:56:32 morsch |
38 | - Store chamber number as slat id. | |
39 | ||
de2f6d11 | 40 | Revision 1.2 2000/10/18 11:42:06 morsch |
41 | - AliMUONRawCluster contains z-position. | |
42 | - Some clean-up of useless print statements during initialisations. | |
43 | ||
3e1872ed | 44 | Revision 1.1 2000/10/06 08:59:03 morsch |
45 | Segmentation classes for bending and non bending plane slat modules (A. de Falco, A. Morsch) | |
46 | ||
4c503756 | 47 | */ |
48 | ||
49 | ///////////////////////////////////////////////////// | |
50 | // Segmentation classes for slat modules // | |
51 | // to be used with AluMUONSegmentationSlat // | |
52 | ///////////////////////////////////////////////////// | |
53 | ||
54 | ||
55 | #include "AliMUONSegmentationSlatModule.h" | |
aaf4addd | 56 | #include "AliRun.h" |
57 | #include "AliMUON.h" | |
4c503756 | 58 | #include <TMath.h> |
59 | #include <iostream.h> | |
60 | ||
61 | #include "AliMUONSegmentationV01.h" | |
62 | ||
63 | //___________________________________________ | |
64 | ClassImp(AliMUONSegmentationSlatModule) | |
65 | ||
66 | AliMUONSegmentationSlatModule::AliMUONSegmentationSlatModule() | |
67 | { | |
68 | // Default constructor | |
e9e4cdf2 | 69 | } |
70 | ||
71 | AliMUONSegmentationSlatModule::AliMUONSegmentationSlatModule(Int_t nsec) | |
72 | { | |
73 | // Non default constructor | |
74 | fNsec = nsec; | |
4c503756 | 75 | fNDiv = new TArrayI(fNsec); |
76 | fDpxD = new TArrayF(fNsec); | |
77 | (*fNDiv)[0]=(*fNDiv)[1]=(*fNDiv)[2]=(*fNDiv)[3]=0; | |
78 | (*fDpxD)[0]=(*fDpxD)[1]=(*fDpxD)[2]=(*fDpxD)[3]=0; | |
e9e4cdf2 | 79 | } |
80 | ||
81 | AliMUONSegmentationSlatModule::~AliMUONSegmentationSlatModule() | |
82 | { | |
83 | // Destructor | |
84 | if (fNDiv) delete fNDiv; | |
85 | if (fDpxD) delete fDpxD; | |
4c503756 | 86 | } |
87 | ||
88 | void AliMUONSegmentationSlatModule::SetPcbBoards(Int_t n[4]) | |
89 | { | |
90 | // | |
91 | // Set Pcb Board segmentation zones | |
92 | for (Int_t i=0; i<4; i++) fPcbBoards[i]=n[i]; | |
93 | } | |
94 | ||
95 | ||
96 | void AliMUONSegmentationSlatModule::SetPadDivision(Int_t ndiv[4]) | |
97 | { | |
98 | // | |
99 | // Defines the pad size perp. to the anode wire (y) for different sectors. | |
100 | // Pad sizes are defined as integral fractions ndiv of a basis pad size | |
101 | // fDpx | |
102 | // | |
103 | for (Int_t i=0; i<4; i++) { | |
104 | (*fNDiv)[i]=ndiv[i]; | |
105 | } | |
106 | ndiv[0]=ndiv[1]; | |
107 | } | |
108 | ||
109 | Float_t AliMUONSegmentationSlatModule::Dpx(Int_t isec) const | |
110 | { | |
111 | // Return x-strip width | |
112 | return (*fDpxD)[isec]; | |
113 | } | |
114 | ||
115 | ||
116 | Float_t AliMUONSegmentationSlatModule::Dpy(Int_t isec) const | |
117 | { | |
118 | // Return y-strip width | |
119 | ||
120 | return fDpy; | |
121 | } | |
122 | ||
123 | ||
124 | void AliMUONSegmentationSlatModule:: | |
125 | GetPadI(Float_t x, Float_t y, Int_t &ix, Int_t &iy) | |
126 | { | |
127 | // Returns pad coordinates (ix,iy) for given real coordinates (x,y) | |
128 | // | |
129 | iy = Int_t(y/fDpy)+1; | |
130 | if (iy > fNpy) iy= fNpy; | |
131 | // | |
132 | // Find sector isec | |
133 | ||
134 | Int_t isec=-1; | |
135 | for (Int_t i=fNsec-1; i > 0; i--) { | |
136 | if (x >= fCx[i-1]) { | |
137 | isec=i; | |
f30dea32 | 138 | if (fCx[isec] == fCx[isec-1] && isec > 1) isec--; |
4c503756 | 139 | break; |
140 | } | |
141 | } | |
142 | ||
143 | if (isec>0) { | |
144 | ix= Int_t((x-fCx[isec-1])/(*fDpxD)[isec]) | |
145 | +fNpxS[isec-1]+1; | |
146 | } else if (isec == 0) { | |
147 | ix= Int_t(x/(*fDpxD)[isec])+1; | |
148 | } else { | |
149 | ix=0; | |
150 | iy=0; | |
151 | } | |
152 | } | |
153 | ||
154 | void AliMUONSegmentationSlatModule:: | |
155 | GetPadC(Int_t ix, Int_t iy, Float_t &x, Float_t &y) | |
156 | { | |
157 | // Returns real coordinates (x,y) for given pad coordinates (ix,iy) | |
158 | // | |
159 | y = Float_t(iy*fDpy)-fDpy/2.; | |
160 | // | |
161 | // Find sector isec | |
162 | Int_t isec=AliMUONSegmentationSlatModule::Sector(ix,iy); | |
de2f6d11 | 163 | if (isec == -1) printf("\n PadC %d %d %d %d \n ", isec, fId, ix, iy); |
4c503756 | 164 | // |
165 | if (isec>0) { | |
166 | x = fCx[isec-1]+(ix-fNpxS[isec-1])*(*fDpxD)[isec]; | |
167 | x = x-(*fDpxD)[isec]/2; | |
168 | } else { | |
169 | x=y=0; | |
170 | } | |
171 | } | |
172 | ||
173 | void AliMUONSegmentationSlatModule:: | |
174 | SetPad(Int_t ix, Int_t iy) | |
175 | { | |
176 | // | |
177 | // Sets virtual pad coordinates, needed for evaluating pad response | |
178 | // outside the tracking program | |
179 | GetPadC(ix,iy,fX,fY); | |
180 | fSector=Sector(ix,iy); | |
181 | } | |
182 | ||
183 | void AliMUONSegmentationSlatModule:: | |
184 | SetHit(Float_t x, Float_t y) | |
185 | { | |
de05461e | 186 | // Set current hit |
187 | // | |
4c503756 | 188 | fXhit = x; |
189 | fYhit = y; | |
190 | ||
191 | if (x < 0) fXhit = 0; | |
192 | if (y < 0) fYhit = 0; | |
193 | ||
194 | if (x >= fCx[fNsec-1]) fXhit = fCx[fNsec-1]; | |
195 | if (y >= fDyPCB) fYhit = fDyPCB; | |
196 | ||
197 | ||
198 | } | |
199 | ||
200 | ||
201 | void AliMUONSegmentationSlatModule:: | |
202 | FirstPad(Float_t xhit, Float_t yhit, Float_t dx, Float_t dy) | |
203 | { | |
204 | // Initialises iteration over pads for charge distribution algorithm | |
205 | // | |
206 | // | |
207 | // Find the wire position (center of charge distribution) | |
208 | Float_t x0a=GetAnod(xhit); | |
209 | fXhit=x0a; | |
210 | fYhit=yhit; | |
211 | // | |
212 | // and take fNsigma*sigma around this center | |
213 | Float_t x01=x0a - dx; | |
214 | Float_t x02=x0a + dx; | |
215 | Float_t y01=yhit - dy; | |
216 | Float_t y02=yhit + dy; | |
4c503756 | 217 | if (x01 < 0) x01 = 0; |
218 | if (y01 < 0) y01 = 0; | |
f30dea32 | 219 | |
220 | if (x02 >= fCx[fNsec-1]) x02 = fCx[fNsec-1]; | |
d4ee3c3e | 221 | |
4c503756 | 222 | |
f30dea32 | 223 | |
4c503756 | 224 | Int_t isec=-1; |
225 | for (Int_t i=fNsec-1; i > 0; i--) { | |
226 | if (x02 >= fCx[i-1]) { | |
227 | isec=i; | |
f30dea32 | 228 | if (fCx[isec] == fCx[isec-1] && isec > 1) isec--; |
4c503756 | 229 | break; |
230 | } | |
231 | } | |
d4ee3c3e | 232 | y02 += Dpy(isec); |
233 | if (y02 >= fDyPCB) y02 = fDyPCB; | |
4c503756 | 234 | |
4c503756 | 235 | // |
236 | // find the pads over which the charge distributes | |
237 | GetPadI(x01,y01,fIxmin,fIymin); | |
238 | GetPadI(x02,y02,fIxmax,fIymax); | |
f30dea32 | 239 | |
4c503756 | 240 | if (fIxmax > fNpx) fIxmax=fNpx; |
241 | if (fIymax > fNpyS[isec]) fIymax = fNpyS[isec]; | |
d4ee3c3e | 242 | |
4c503756 | 243 | fXmin=x01; |
d4ee3c3e | 244 | fXmax=x02; |
4c503756 | 245 | fYmin=y01; |
d4ee3c3e | 246 | fYmax=y02; |
247 | ||
4c503756 | 248 | // |
249 | // Set current pad to lower left corner | |
250 | if (fIxmax < fIxmin) fIxmax=fIxmin; | |
251 | if (fIymax < fIymin) fIymax=fIymin; | |
252 | fIx=fIxmin; | |
253 | fIy=fIymin; | |
254 | ||
255 | GetPadC(fIx,fIy,fX,fY); | |
256 | fSector=Sector(fIx,fIy); | |
d4ee3c3e | 257 | /* |
258 | printf("\n \n First Pad: %d %d %f %f %d %d %d %f" , | |
259 | fIxmin, fIxmax, fXmin, fXmax, fNpx, fId, isec, Dpy(isec)); | |
260 | printf("\n \n First Pad: %d %d %f %f %d %d %d %f", | |
261 | fIymin, fIymax, fYmin, fYmax, fNpyS[isec], fId, isec, Dpy(isec)); | |
262 | */ | |
4c503756 | 263 | } |
264 | ||
265 | void AliMUONSegmentationSlatModule::NextPad() | |
266 | { | |
267 | // Stepper for the iteration over pads | |
268 | // | |
269 | // Step to next pad in the integration region | |
270 | // step from left to right | |
271 | if (fIx != fIxmax) { | |
272 | fIx++; | |
273 | GetPadC(fIx,fIy,fX,fY); | |
274 | fSector=Sector(fIx,fIy); | |
275 | // step up | |
276 | } else if (fIy != fIymax) { | |
277 | fIx=fIxmin; | |
278 | fIy++; | |
279 | GetPadC(fIx,fIy,fX,fY); | |
280 | fSector=Sector(fIx,fIy); | |
281 | ||
282 | } else { | |
283 | fIx=-1; | |
284 | fIy=-1; | |
285 | } | |
286 | // printf("\n Next Pad %d %d %f %f %d %d %d %d %d ", | |
287 | } | |
288 | ||
289 | ||
290 | Int_t AliMUONSegmentationSlatModule::MorePads() | |
de05461e | 291 | { |
4c503756 | 292 | // Stopping condition for the iterator over pads |
293 | // | |
294 | // Are there more pads in the integration region | |
4c503756 | 295 | |
296 | return (fIx != -1 || fIy != -1); | |
297 | } | |
298 | ||
299 | ||
300 | Int_t AliMUONSegmentationSlatModule::Sector(Int_t ix, Int_t iy) | |
301 | { | |
302 | // | |
303 | // Determine segmentation zone from pad coordinates | |
304 | // | |
305 | Int_t isec=-1; | |
306 | for (Int_t i=0; i < fNsec; i++) { | |
307 | if (ix <= fNpxS[i]) { | |
308 | isec=i; | |
309 | break; | |
310 | } | |
311 | } | |
312 | if (isec == -1) printf("\n Sector: Attention isec ! %d %d %d %d \n", | |
313 | fId, ix, iy,fNpxS[3]); | |
314 | ||
315 | return isec; | |
316 | ||
317 | } | |
318 | ||
319 | void AliMUONSegmentationSlatModule:: | |
320 | IntegrationLimits(Float_t& x1,Float_t& x2,Float_t& y1, Float_t& y2) | |
321 | { | |
322 | // Returns integration limits for current pad | |
323 | // | |
324 | ||
325 | x1=fXhit-fX-Dpx(fSector)/2.; | |
326 | x2=x1+Dpx(fSector); | |
327 | y1=fYhit-fY-Dpy(fSector)/2.; | |
328 | y2=y1+Dpy(fSector); | |
329 | // printf("\n Integration Limits %f %f %f %f %d %f", x1, x2, y1, y2, fSector, Dpx(fSector)); | |
330 | ||
331 | } | |
332 | ||
333 | void AliMUONSegmentationSlatModule:: | |
334 | Neighbours(Int_t iX, Int_t iY, Int_t* Nlist, Int_t Xlist[10], Int_t Ylist[10]) | |
335 | { | |
336 | // Returns list of next neighbours for given Pad (iX, iY) | |
337 | // | |
338 | // | |
339 | Int_t i=0; | |
340 | // | |
341 | // step right | |
342 | if (iX+1 <= fNpx) { | |
343 | Xlist[i]=iX+1; | |
344 | Ylist[i++]=iY; | |
345 | } | |
346 | // | |
347 | // step left | |
348 | if (iX-1 > 0) { | |
349 | Xlist[i]=iX-1; | |
350 | Ylist[i++]=iY; | |
351 | } | |
352 | ||
353 | // | |
354 | // step up | |
355 | if (iY+1 <= fNpy) { | |
356 | Xlist[i]=iX; | |
357 | Ylist[i++]=iY+1; | |
358 | } | |
359 | // | |
360 | // step down | |
361 | if (iY-1 > 0) { | |
362 | Xlist[i]=iX; | |
363 | Ylist[i++]=iY-1; | |
364 | } | |
365 | ||
366 | *Nlist=i; | |
367 | } | |
368 | ||
369 | ||
370 | void AliMUONSegmentationSlatModule::Init(Int_t chamber) | |
371 | { | |
4c503756 | 372 | // |
373 | // Fill the arrays fCx (x-contour) and fNpxS (ix-contour) for each sector | |
374 | // These arrays help in converting from real to pad co-ordinates and | |
375 | // vice versa | |
376 | // | |
377 | // Segmentation is defined by rectangular modules approximating | |
378 | // concentric circles as shown below | |
379 | // | |
380 | // PCB module size in cm | |
9e1a0ddb | 381 | // printf("\n Initialise Segmentation SlatModule \n"); |
de05461e | 382 | |
4c503756 | 383 | fDxPCB=40; |
384 | fDyPCB=40; | |
385 | // | |
386 | // number of pad rows per PCB | |
387 | // | |
388 | Int_t nPyPCB=Int_t(fDyPCB/fDpy); | |
389 | // | |
390 | // maximum number of pad rows | |
391 | fNpy=nPyPCB; | |
392 | // | |
393 | // Calculate padsize along x | |
394 | (*fDpxD)[fNsec-1]=fDpx; | |
395 | if (fNsec > 1) { | |
396 | for (Int_t i=fNsec-2; i>=0; i--){ | |
397 | (*fDpxD)[i]=(*fDpxD)[fNsec-1]/(*fNDiv)[i]; | |
4c503756 | 398 | } |
399 | } | |
400 | // | |
401 | // fill the arrays defining the pad segmentation boundaries | |
402 | // | |
403 | // | |
404 | // Loop over sectors (isec=0 is the dead space surounding the beam pipe) | |
405 | for (Int_t isec=0; isec<4; isec++) { | |
406 | if (isec==0) { | |
407 | fNpxS[0] = 0; | |
408 | fNpyS[0] = 0; | |
409 | fCx[0] = 0; | |
410 | } else { | |
411 | fNpxS[isec]=fNpxS[isec-1] + fPcbBoards[isec]*Int_t(fDxPCB/(*fDpxD)[isec]); | |
412 | fNpyS[isec]=fNpy; | |
413 | fCx[isec]=fCx[isec-1] + fPcbBoards[isec]*fDxPCB; | |
414 | } | |
415 | } // sectors | |
416 | // maximum number of pad rows | |
417 | fNpy=nPyPCB; | |
418 | fNpx=fNpxS[3]; | |
de2f6d11 | 419 | // |
420 | fId = chamber; | |
4c503756 | 421 | } |
422 | ||
423 | ||
424 | ||
425 | ||
426 | ||
427 | ||
428 | ||
429 | ||
430 | ||
431 | ||
432 | ||
433 |