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a9e2aefa | 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 | $Log$ | |
03f221a7 | 18 | Revision 1.7 2000/10/03 21:48:07 morsch |
19 | Adopt to const declaration of some of the methods in AliSegmentation. | |
20 | ||
c3eff6ad | 21 | Revision 1.6 2000/10/02 16:58:29 egangler |
22 | Cleaning of the code : | |
23 | -> coding conventions | |
24 | -> void Streamers | |
25 | -> some useless includes removed or replaced by "class" statement | |
26 | ||
ecfa008b | 27 | Revision 1.5 2000/07/03 11:54:57 morsch |
28 | AliMUONSegmentation and AliMUONHitMap have been replaced by AliSegmentation and AliHitMap in STEER | |
29 | The methods GetPadIxy and GetPadXxy of AliMUONSegmentation have changed name to GetPadI and GetPadC. | |
30 | ||
a30a000f | 31 | Revision 1.4 2000/06/29 12:34:09 morsch |
32 | AliMUONSegmentation class has been made independent of AliMUONChamber. This makes | |
33 | it usable with any other geometry class. The link to the object to which it belongs is | |
34 | established via an index. This assumes that there exists a global geometry manager | |
35 | from which the pointer to the parent object can be obtained (in our case gAlice). | |
36 | ||
d81db581 | 37 | Revision 1.3 2000/06/26 10:01:26 pcrochet |
38 | global variables removed | |
39 | ||
3f2cdba8 | 40 | Revision 1.2 2000/06/15 07:58:48 morsch |
41 | Code from MUON-dev joined | |
42 | ||
a9e2aefa | 43 | Revision 1.1.2.1 2000/06/09 21:51:58 morsch |
44 | Code from AliMUONSegResTriggerY.cxx | |
45 | ||
46 | */ | |
47 | ||
3f2cdba8 | 48 | |
a9e2aefa | 49 | /* |
50 | Old Log: | |
51 | Revision 1.1.2.4 2000/05/05 10:17:04 morsch | |
52 | Y strip numerotation changed (CP) | |
53 | ||
54 | Revision 1.1.2.3 2000/04/26 12:33:40 morsch | |
55 | Minor changes in some methods (CP) | |
56 | ||
57 | Revision 1.1.2.2 2000/02/20 07:49:50 morsch | |
58 | Bugs in Dpx, Dpy and ISector methods corrected (P.C.) | |
59 | ||
60 | Revision 1.1.2.1 2000/02/17 14:34:57 morsch | |
61 | Draft version from P. Crochet | |
62 | ||
63 | */ | |
64 | ||
65 | #include "AliMUONSegmentationTriggerY.h" | |
3f2cdba8 | 66 | #include "AliMUONTriggerConstants.h" |
a9e2aefa | 67 | #include "TMath.h" |
68 | #include "TRandom.h" | |
69 | #include "TArc.h" | |
70 | #include "AliMUONChamber.h" | |
71 | #include <iostream.h> | |
72 | ClassImp(AliMUONSegmentationTriggerY) | |
73 | ||
3f2cdba8 | 74 | //------------------------------------------------------------------ |
d81db581 | 75 | void AliMUONSegmentationTriggerY::Init(Int_t chamber) |
a9e2aefa | 76 | { |
3f2cdba8 | 77 | // intialize Y segmentation |
a9e2aefa | 78 | cout << "Initialize Trigger Chamber Geometry Y " << "\n"; |
d81db581 | 79 | AliMUONSegmentationTrigger::Init(chamber); |
a9e2aefa | 80 | |
81 | // calculate x & y position of Y strips | |
3f2cdba8 | 82 | Int_t nModule=AliMUONTriggerConstants::Nmodule(); |
83 | for (Int_t imodule=0; imodule<nModule; imodule++) { | |
84 | Float_t width=StripSizeY(AliMUONTriggerConstants::ModuleId(imodule)); | |
85 | Int_t nStrip=AliMUONTriggerConstants::NstripY(imodule); | |
86 | for (Int_t istrip=0; istrip<nStrip; istrip++){ | |
a9e2aefa | 87 | if (imodule<63) { |
3f2cdba8 | 88 | fXofysmin[imodule][istrip]= |
89 | (AliMUONTriggerConstants::XcMin(imodule)+width*(istrip))*fZscale; | |
90 | fXofysmax[imodule][istrip]= | |
91 | (AliMUONTriggerConstants::XcMin(imodule)+width*(istrip+1))*fZscale; | |
a9e2aefa | 92 | } else { |
93 | fXofysmin[imodule][istrip]=-1.*fXofysmax[imodule-63][istrip]; | |
94 | fXofysmax[imodule][istrip]=-1.*fXofysmin[imodule-63][istrip]; | |
95 | } | |
3f2cdba8 | 96 | fYofysmin[imodule][istrip] = fYcmin[imodule]*fZscale; |
97 | fYofysmax[imodule][istrip] = fYcmax[imodule]*fZscale; | |
a9e2aefa | 98 | } |
99 | } | |
100 | ||
101 | } | |
102 | ||
103 | //------------------------------------------------------------------ | |
c3eff6ad | 104 | void AliMUONSegmentationTriggerY::GetPadI(Float_t x,Float_t y,Int_t &ix,Int_t &iy) |
105 | { | |
a9e2aefa | 106 | // Returns pad coordinates (ix,iy) for given real coordinates (x,y) |
107 | // x,y = real coordinates; ix = module number , iy = strip number | |
108 | ||
109 | ix = 0; | |
110 | iy = 0; | |
3f2cdba8 | 111 | Int_t nModule=AliMUONTriggerConstants::Nmodule(); |
112 | for (Int_t imodule=0; imodule<nModule; imodule++) { | |
113 | Int_t nStrip=AliMUONTriggerConstants::NstripY(imodule); | |
114 | for (Int_t istrip=0; istrip<nStrip; istrip++){ | |
a9e2aefa | 115 | if (x>fXofysmin[imodule][istrip]&&x<fXofysmax[imodule][istrip]&& |
116 | y>fYofysmin[imodule][istrip]&&y<fYofysmax[imodule][istrip]){ | |
3f2cdba8 | 117 | ix = AliMUONTriggerConstants::ModuleId(imodule); |
a9e2aefa | 118 | iy = istrip; |
119 | } | |
120 | } | |
121 | } | |
122 | } | |
123 | ||
124 | //------------------------------------------------------------------ | |
c3eff6ad | 125 | void AliMUONSegmentationTriggerY::GetPadC(Int_t ix, Int_t iy, Float_t &x, Float_t &y) |
126 | { | |
a9e2aefa | 127 | // Returns real coordinates (x,y) for given pad coordinates (ix,iy) |
128 | // ix = module number , iy = strip number; x,y = center of strip | |
129 | x = 0.; | |
130 | y = 0.; | |
3f2cdba8 | 131 | Int_t nModule=AliMUONTriggerConstants::Nmodule(); |
132 | for (Int_t imodule=0; imodule<nModule; imodule++) { | |
133 | if (AliMUONTriggerConstants::ModuleId(imodule)==ix){ | |
a9e2aefa | 134 | x=fXofysmin[imodule][iy]+(fXofysmax[imodule][iy]-fXofysmin[imodule][iy])/2.; |
135 | y=fYofysmin[imodule][iy]+(fYofysmax[imodule][iy]-fYofysmin[imodule][iy])/2.; | |
136 | } | |
137 | } | |
138 | } | |
139 | ||
140 | //------------------------------------------------------------------ | |
141 | void AliMUONSegmentationTriggerY::SetPadSize(Float_t p1, Float_t p2) | |
142 | { | |
143 | // Sets the padsize | |
144 | // | |
145 | fDpx=p1; | |
146 | fDpy=p2; | |
147 | } | |
148 | ||
149 | //------------------------------------------------------------------ | |
150 | void AliMUONSegmentationTriggerY:: | |
03f221a7 | 151 | Neighbours(Int_t iX, Int_t iY, Int_t* Nlist, Int_t Xlist[10], Int_t Ylist[10]){ |
152 | // Returns list of 10 next neighbours for given Y strip (ix, iy) | |
153 | // neighbour number 9 8 7 6 5 (Y strip (ix, iy)) 0 1 2 3 4 in the list | |
154 | // \_______/ \_______/ | |
155 | // left right | |
156 | // Note : should not be used to return a list of neighbours larger than 16 ! | |
157 | ||
158 | Int_t absiX = TMath::Abs(iX); | |
159 | Int_t numModule = ModuleNumber(absiX); // module number Id. | |
160 | Int_t nStrip = AliMUONTriggerConstants::NstripY(numModule); //numb of strips | |
161 | Int_t iCandidateLeft, iCandidateRight; | |
162 | Int_t iNewCandidateRight=0; | |
163 | Int_t iNewCandidateLeft=0; | |
164 | // first strip number on the right of the left module | |
165 | if ( (absiX-(Int_t(absiX/10))*10)!=1 && absiX!=52 ) | |
166 | iNewCandidateLeft = | |
167 | AliMUONTriggerConstants::NstripY(ModuleNumber(absiX-1))-1; | |
168 | Int_t j; | |
a9e2aefa | 169 | |
03f221a7 | 170 | *Nlist = 10; |
171 | for (Int_t i=0; i<10; i++) Xlist[i]=Ylist[i]=0; | |
172 | ||
173 | if (iY < nStrip) { | |
174 | ||
175 | for (Int_t i=0; i<5; i++) { | |
176 | j = i + 5; | |
177 | iCandidateRight = iY + (i + 1); | |
178 | iCandidateLeft = iY - (i + 1); | |
179 | if (iCandidateRight < nStrip) { // strip in same module | |
180 | Xlist[i] = absiX; | |
181 | Ylist[i] = iCandidateRight; | |
182 | } else if ((absiX+1)%10!=8) { // need to scan the module on the right | |
183 | Xlist[i] = absiX+1; | |
184 | Ylist[i] = iNewCandidateRight; | |
185 | iNewCandidateRight++; | |
186 | } | |
187 | ||
188 | if (iCandidateLeft >=0 ) { // strip in same module | |
189 | Xlist[j] = absiX; | |
190 | Ylist[j] = iCandidateLeft; | |
191 | } else if ( iNewCandidateLeft !=0) { | |
192 | Xlist[j] = absiX-1; | |
193 | Ylist[j] = iNewCandidateLeft; | |
194 | iNewCandidateLeft--; | |
195 | } | |
a9e2aefa | 196 | } |
197 | ||
198 | if (iX<0) { // left side of chamber | |
03f221a7 | 199 | for (Int_t i=0; i<10; i++) { |
200 | if (Xlist[i]!=0) Xlist[i]=-Xlist[i]; | |
201 | } | |
a9e2aefa | 202 | } |
03f221a7 | 203 | |
204 | } // iY < nStrip | |
a9e2aefa | 205 | } |
206 | ||
207 | //------------------------------------------------------------------ | |
208 | void AliMUONSegmentationTriggerY::SetPad(Int_t ix, Int_t iy) | |
209 | { | |
210 | // Sets virtual pad coordinates, needed for evaluating pad response | |
211 | // outside the tracking program | |
ecfa008b | 212 | GetPadC(ix,iy,fX,fY); |
213 | GetPadI(fX,fY,fIx,fIy); | |
a9e2aefa | 214 | fSector=Sector(ix,iy); |
215 | } | |
216 | ||
217 | //------------------------------------------------------------------ | |
c3eff6ad | 218 | Int_t AliMUONSegmentationTriggerY::ISector() |
a9e2aefa | 219 | { return fSector;} |
220 | ||
221 | //------------------------------------------------------------------ | |
c3eff6ad | 222 | |
a9e2aefa | 223 | Int_t AliMUONSegmentationTriggerY::Ix() |
ecfa008b | 224 | { return fIx;} |
a9e2aefa | 225 | |
226 | //------------------------------------------------------------------ | |
c3eff6ad | 227 | |
a9e2aefa | 228 | Int_t AliMUONSegmentationTriggerY::Iy() |
ecfa008b | 229 | { return fIy;} |
a9e2aefa | 230 | |
231 | //------------------------------------------------------------------ | |
c3eff6ad | 232 | Float_t AliMUONSegmentationTriggerY::Dpx(Int_t isec) const |
3f2cdba8 | 233 | { |
234 | // returns x size of y strips for sector isec | |
a9e2aefa | 235 | if (isec==1) { |
236 | return 2.125*fZscale; | |
237 | } else if (isec==2) { | |
238 | return 2.125*fZscale; | |
239 | } else if (isec==3) { | |
240 | return 2.125*fZscale; | |
241 | } else if (isec==4) { | |
242 | return 4.25*fZscale; | |
243 | } else { | |
244 | return 0.; | |
245 | } | |
246 | } | |
247 | ||
248 | //------------------------------------------------------------------ | |
c3eff6ad | 249 | Float_t AliMUONSegmentationTriggerY::Dpy(Int_t isec) const |
3f2cdba8 | 250 | { |
251 | // returns y size of y strips for sector isec | |
a9e2aefa | 252 | if (isec==1) { |
253 | return 68.0*fZscale; | |
254 | } else if (isec==2) { | |
255 | return 51.0*fZscale; | |
256 | } else if (isec==3) { | |
257 | return 68.0*fZscale; | |
258 | } else if (isec==4) { | |
259 | return 68.0*fZscale; | |
260 | } else if (isec==5) { | |
261 | return 68.0*fZscale; | |
262 | } else { | |
263 | return 0.; | |
264 | } | |
265 | ||
266 | } | |
267 | ||
268 | //------------------------------------------------------------------ | |
269 | void AliMUONSegmentationTriggerY::SetHit(Float_t xhit, Float_t yhit) | |
3f2cdba8 | 270 | { |
271 | // set hits during diintegration | |
03f221a7 | 272 | AliMUONSegmentationTrigger::SetHit(xhit,yhit); |
3f2cdba8 | 273 | } |
a9e2aefa | 274 | |
275 | //------------------------------------------------------------------ | |
276 | Int_t AliMUONSegmentationTriggerY::Sector(Int_t ix, Int_t iy) | |
277 | { | |
278 | // Returns sector number for given module | |
279 | // | |
280 | Int_t absix=TMath::Abs(ix); | |
281 | Int_t iwidth=Int_t(StripSizeY(absix)); | |
3f2cdba8 | 282 | |
a9e2aefa | 283 | if (absix==52) { |
284 | return 1; | |
285 | } else if (absix==41||absix==61) { | |
286 | return 2; | |
287 | } else if (iwidth==2) { | |
288 | return 3; | |
289 | } else if (iwidth==4) { | |
290 | return 4; | |
291 | } else { | |
292 | return 0; | |
293 | } | |
294 | } | |
295 | ||
296 | //------------------------------------------------------------------ | |
297 | void AliMUONSegmentationTriggerY:: | |
03f221a7 | 298 | IntegrationLimits(Float_t& x1, Float_t& x2, Float_t& x3, Float_t& x4) |
a9e2aefa | 299 | { |
300 | // returns quantities needed to evaluate neighbour strip response | |
301 | Int_t ix,iy; | |
302 | Float_t xstrip,ystrip; | |
ecfa008b | 303 | GetPadI(fXhit,fYhit,ix,iy); |
a30a000f | 304 | GetPadC(ix,iy,xstrip,ystrip); |
ecfa008b | 305 | x1=fXhit; // hit x position |
a9e2aefa | 306 | x2=xstrip; // x coordinate of the main strip |
ecfa008b | 307 | x3=fX; // current strip real x coordinate |
03f221a7 | 308 | // width=StripSizeY(ix); // width of the main strip |
309 | ||
310 | // find the position of the 2 borders of the current strip | |
311 | Float_t xmin = fXofysmin[ModuleNumber(fIx)][fIy]; | |
312 | Float_t xmax = fXofysmax[ModuleNumber(fIx)][fIy]; | |
313 | ||
314 | // dist. between the hit and the closest border of the current strip | |
315 | x4 = (TMath::Abs(xmax-x1) > TMath::Abs(xmin-x1)) ? | |
316 | TMath::Abs(xmin-x1):TMath::Abs(xmax-x1); | |
317 | ||
a9e2aefa | 318 | } |
319 | ||
320 | ||
321 | ||
322 |