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9825400f | 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 | ||
88cb7938 | 16 | /* $Id$ */ |
d4fa40b7 | 17 | |
4dd5a4bf | 18 | // ---------------------------- |
19 | // Class AliMUONClusterInput | |
20 | // ---------------------------- | |
21 | // Global data service for hit reconstruction | |
22 | // Author: to be added | |
23 | ||
63ed9c6b | 24 | #include "AliMUONClusterInput.h" |
30178c30 | 25 | |
4dd5a4bf | 26 | #include "AliMUONGeometryTransformer.h" |
27 | #include "AliMUONGeometrySegmentation.h" | |
28 | #include "AliMUONSegFactory.h" | |
b7ef3c96 | 29 | #include "AliMUONSegmentation.h" |
7e4a628d | 30 | #include "AliMUONConstants.h" |
7e4a628d | 31 | #include "AliMUONMathieson.h" |
9825400f | 32 | #include "AliMUONRawCluster.h" |
33 | #include "AliMUONDigit.h" | |
63ed9c6b | 34 | |
8c343c7c | 35 | #include "AliLog.h" |
9825400f | 36 | |
63ed9c6b | 37 | #include <TClonesArray.h> |
38 | #include <TMinuit.h> | |
4dd5a4bf | 39 | #include <TGeoManager.h> |
9825400f | 40 | |
36dc66ec | 41 | /// \cond CLASSIMP |
42 | ClassImp(AliMUONClusterInput) | |
43 | /// \endcond | |
44 | ||
4dd5a4bf | 45 | AliMUONClusterInput* AliMUONClusterInput::fgClusterInput = 0; |
46 | TMinuit* AliMUONClusterInput::fgMinuit = 0; | |
47 | AliMUONMathieson* AliMUONClusterInput::fgMathieson = 0; | |
48 | AliMUONGeometryTransformer* AliMUONClusterInput::fgTransformer = 0; | |
49 | AliMUONSegmentation* AliMUONClusterInput::fgSegmentation = 0; | |
9825400f | 50 | |
36dc66ec | 51 | //______________________________________________________________________________ |
30178c30 | 52 | AliMUONClusterInput::AliMUONClusterInput() |
7e4a628d | 53 | : TObject(), |
54d7ba50 | 54 | fNseg(0), |
55 | fChamber(0), | |
7e4a628d | 56 | fCluster(0), |
54d7ba50 | 57 | fZ(0.), |
fed772f3 | 58 | fChargeCorrel(1.), |
fed772f3 | 59 | fDetElemId(0) |
b137f8b9 | 60 | |
30178c30 | 61 | { |
36dc66ec | 62 | /// Default constructor |
4dd5a4bf | 63 | |
3f5cf0b3 | 64 | fDigits[0]=0; |
65 | fDigits[1]=0; | |
fed772f3 | 66 | fSegmentation2[0]=0; |
67 | fSegmentation2[1]=0; | |
3f5cf0b3 | 68 | } |
69 | ||
36dc66ec | 70 | //______________________________________________________________________________ |
9825400f | 71 | AliMUONClusterInput* AliMUONClusterInput::Instance() |
72 | { | |
36dc66ec | 73 | /// return pointer to the singleton instance |
9825400f | 74 | if (fgClusterInput == 0) { |
75 | fgClusterInput = new AliMUONClusterInput(); | |
e357fc46 | 76 | fgMinuit = new TMinuit(8); |
4dd5a4bf | 77 | |
78 | // Create segmentation with activated Root geometry | |
79 | if ( ! gGeoManager ) { | |
80 | AliFatalClass("Geometry not loaded."); | |
81 | return fgClusterInput; | |
82 | } | |
83 | fgTransformer = new AliMUONGeometryTransformer(true); | |
84 | fgTransformer->ReadGeometryData("volpath.dat", gGeoManager); | |
85 | AliMUONSegFactory factory(fgTransformer); | |
86 | fgSegmentation = factory.CreateSegmentation(); | |
9825400f | 87 | } |
88 | ||
89 | return fgClusterInput; | |
90 | } | |
91 | ||
36dc66ec | 92 | //______________________________________________________________________________ |
d4fa40b7 | 93 | AliMUONClusterInput::~AliMUONClusterInput() |
94 | { | |
36dc66ec | 95 | /// Destructor |
d4fa40b7 | 96 | delete fgMinuit; |
7e4a628d | 97 | delete fgMathieson; |
4dd5a4bf | 98 | delete fgTransformer; |
99 | delete fgSegmentation; | |
8fee0ce8 | 100 | fgMinuit = 0; |
101 | fgMathieson = 0; | |
d4fa40b7 | 102 | } |
30178c30 | 103 | |
36dc66ec | 104 | //______________________________________________________________________________ |
a713db22 | 105 | void AliMUONClusterInput::SetDigits(Int_t chamber, Int_t idDE, TClonesArray* dig1, TClonesArray* dig2) |
106 | { | |
36dc66ec | 107 | /// Set pointer to digits with corresponding segmentations and responses (two cathode planes) |
a713db22 | 108 | fChamber = chamber; |
109 | fDetElemId = idDE; | |
110 | fDigits[0] = dig1; | |
111 | fDigits[1] = dig2; | |
112 | fNDigits[0] = dig1->GetEntriesFast(); | |
113 | fNDigits[1] = dig2->GetEntriesFast(); | |
114 | ||
8fee0ce8 | 115 | delete fgMathieson; |
b7ef3c96 | 116 | fgMathieson = new AliMUONMathieson(); |
117 | ||
c2a43efa | 118 | fSegmentation2[0]= fgSegmentation->GetModuleSegmentationByDEId(fDetElemId, 0); |
119 | fSegmentation2[1]= fgSegmentation->GetModuleSegmentationByDEId(fDetElemId, 1); | |
a713db22 | 120 | |
121 | fNseg = 2; | |
122 | if (chamber < AliMUONConstants::NTrackingCh()) { | |
123 | if (chamber > 1 ) { | |
124 | fgMathieson->SetPitch(AliMUONConstants::Pitch()); | |
125 | fgMathieson->SetSqrtKx3AndDeriveKx2Kx4(AliMUONConstants::SqrtKx3()); | |
126 | fgMathieson->SetSqrtKy3AndDeriveKy2Ky4(AliMUONConstants::SqrtKy3()); | |
127 | fChargeCorrel = AliMUONConstants::ChargeCorrel(); | |
128 | } else { | |
129 | fgMathieson->SetPitch(AliMUONConstants::PitchSt1()); | |
130 | fgMathieson->SetSqrtKx3AndDeriveKx2Kx4(AliMUONConstants::SqrtKx3St1()); | |
131 | fgMathieson->SetSqrtKy3AndDeriveKy2Ky4(AliMUONConstants::SqrtKy3St1()); | |
132 | fChargeCorrel = AliMUONConstants::ChargeCorrelSt1(); | |
133 | } | |
134 | } | |
135 | } | |
136 | ||
36dc66ec | 137 | //______________________________________________________________________________ |
a713db22 | 138 | void AliMUONClusterInput::SetDigits(Int_t chamber, Int_t idDE, TClonesArray* dig) |
139 | { | |
36dc66ec | 140 | /// Set pointer to digits with corresponding segmentations and responses (one cathode plane) |
a713db22 | 141 | |
142 | fChamber = chamber; | |
143 | fDetElemId = idDE; | |
144 | fDigits[0] = dig; | |
145 | ||
c2a43efa | 146 | fSegmentation2[0]= fgSegmentation->GetModuleSegmentationByDEId(fDetElemId, 0); |
9825400f | 147 | fNseg=1; |
148 | } | |
149 | ||
36dc66ec | 150 | //______________________________________________________________________________ |
9825400f | 151 | void AliMUONClusterInput::SetCluster(AliMUONRawCluster* cluster) |
152 | { | |
36dc66ec | 153 | /// Set the current cluster |
b137f8b9 | 154 | //PH printf("\n %p \n", cluster); |
155 | fCluster=cluster; | |
156 | Float_t qtot; | |
157 | Int_t i, cath, ix, iy; | |
158 | AliMUONDigit* digit; | |
159 | fNmul[0]=cluster->GetMultiplicity(0); | |
160 | fNmul[1]=cluster->GetMultiplicity(1); | |
161 | //PH printf("\n %p %p ", fDigits[0], fDigits[1]); | |
162 | ||
163 | for (cath=0; cath<2; cath++) { | |
164 | qtot=0; | |
165 | for (i=0; i<fNmul[cath]; i++) { | |
166 | // pointer to digit | |
167 | digit =(AliMUONDigit*) | |
0164904a | 168 | (fDigits[cath]->UncheckedAt(cluster->GetIndex(i,cath))); |
9825400f | 169 | // pad coordinates |
08a636a8 | 170 | ix = digit->PadX(); |
171 | iy = digit->PadY(); | |
9825400f | 172 | // pad charge |
08a636a8 | 173 | fCharge[i][cath] = digit->Signal(); |
9825400f | 174 | // pad centre coordinates |
175 | // fSegmentation[cath]->GetPadCxy(ix, iy, x, y); | |
176 | // globals kUsed in fitting functions | |
177 | fix[i][cath]=ix; | |
178 | fiy[i][cath]=iy; | |
179 | // total charge per cluster | |
180 | qtot+=fCharge[i][cath]; | |
e357fc46 | 181 | // Current z |
182 | Float_t xc, yc; | |
002920d1 | 183 | fSegmentation2[cath]->GetPadC(fDetElemId,ix,iy,xc,yc,fZ); |
9825400f | 184 | } // loop over cluster digits |
185 | fQtot[cath]=qtot; | |
186 | fChargeTot[cath]=Int_t(qtot); | |
187 | } // loop over cathodes | |
188 | } | |
189 | ||
36dc66ec | 190 | //______________________________________________________________________________ |
9825400f | 191 | Float_t AliMUONClusterInput::DiscrChargeS1(Int_t i,Double_t *par) |
192 | { | |
36dc66ec | 193 | /// Compute the charge on first cathod only. |
a1b02be9 | 194 | return DiscrChargeCombiS1(i,par,0); |
9825400f | 195 | } |
196 | ||
36dc66ec | 197 | //______________________________________________________________________________ |
9825400f | 198 | Float_t AliMUONClusterInput::DiscrChargeCombiS1(Int_t i,Double_t *par, Int_t cath) |
199 | { | |
36dc66ec | 200 | /// \todo add comment |
201 | /// - par[0] x-position of cluster | |
202 | /// - param par[1] y-position of cluster | |
9825400f | 203 | |
c2a43efa | 204 | Float_t q1; |
205 | fSegmentation2[cath]-> SetPad(fDetElemId, fix[i][cath], fiy[i][cath]); | |
206 | // First Cluster | |
207 | fSegmentation2[cath]-> SetHit(fDetElemId, par[0],par[1],fZ); | |
208 | q1 = fgMathieson->IntXY(fDetElemId, fSegmentation2[cath]); | |
002920d1 | 209 | |
9825400f | 210 | Float_t value = fQtot[cath]*q1; |
211 | return value; | |
212 | } | |
213 | ||
214 | ||
36dc66ec | 215 | //______________________________________________________________________________ |
9825400f | 216 | Float_t AliMUONClusterInput::DiscrChargeS2(Int_t i,Double_t *par) |
217 | { | |
36dc66ec | 218 | /// \todo add comment |
219 | /// - par[0] x-position of first cluster | |
220 | /// - par[1] y-position of first cluster | |
221 | /// - par[2] x-position of second cluster | |
222 | /// - par[3] y-position of second cluster | |
223 | /// - par[4] charge fraction of first cluster | |
224 | /// - 1-par[4] charge fraction of second cluster | |
9825400f | 225 | |
a713db22 | 226 | Float_t q1, q2; |
227 | ||
002920d1 | 228 | fSegmentation2[0]->SetPad(fDetElemId, fix[i][0], fiy[i][0]); |
229 | // First Cluster | |
230 | fSegmentation2[0]->SetHit(fDetElemId, par[0],par[1],fZ); | |
231 | q1 = fgMathieson->IntXY(fDetElemId, fSegmentation2[0]); | |
232 | ||
233 | // Second Cluster | |
234 | fSegmentation2[0]->SetHit(fDetElemId,par[2],par[3],fZ); | |
235 | q2 = fgMathieson->IntXY(fDetElemId, fSegmentation2[0]); | |
236 | ||
a713db22 | 237 | Float_t value = fQtot[0]*(par[4]*q1+(1.-par[4])*q2); |
238 | return value; | |
9825400f | 239 | } |
240 | ||
36dc66ec | 241 | //______________________________________________________________________________ |
9825400f | 242 | Float_t AliMUONClusterInput::DiscrChargeCombiS2(Int_t i,Double_t *par, Int_t cath) |
243 | { | |
36dc66ec | 244 | /// \todo add comment |
245 | /// - par[0] x-position of first cluster | |
246 | /// - par[1] y-position of first cluster | |
247 | /// - par[2] x-position of second cluster | |
248 | /// - par[3] y-position of second cluster | |
249 | /// - par[4] charge fraction of first cluster - first cathode | |
250 | /// - 1-par[4] charge fraction of second cluster | |
251 | /// - par[5] charge fraction of first cluster - second cathode | |
9825400f | 252 | |
a713db22 | 253 | Float_t q1, q2; |
254 | ||
002920d1 | 255 | fSegmentation2[cath]->SetPad(fDetElemId,fix[i][cath], fiy[i][cath]); |
256 | // First Cluster | |
257 | fSegmentation2[cath]->SetHit(fDetElemId,par[0],par[1],fZ); | |
258 | q1 = fgMathieson->IntXY(fDetElemId, fSegmentation2[cath]); | |
259 | ||
260 | // Second Cluster | |
261 | fSegmentation2[cath]->SetHit(fDetElemId,par[2],par[3],fZ); | |
262 | q2 = fgMathieson->IntXY(fDetElemId, fSegmentation2[cath]); | |
263 | ||
a713db22 | 264 | Float_t value; |
265 | if (cath==0) { | |
266 | value = fQtot[0]*(par[4]*q1+(1.-par[4])*q2); | |
267 | } else { | |
268 | value = fQtot[1]*(par[5]*q1+(1.-par[5])*q2); | |
269 | } | |
270 | return value; | |
9825400f | 271 | } |