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