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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 | $Log$ | |
ef495f13 | 17 | Revision 1.5 2000/07/03 11:54:57 morsch |
18 | AliMUONSegmentation and AliMUONHitMap have been replaced by AliSegmentation and AliHitMap in STEER | |
19 | The methods GetPadIxy and GetPadXxy of AliMUONSegmentation have changed name to GetPadI and GetPadC. | |
20 | ||
a30a000f | 21 | Revision 1.4 2000/06/29 12:34:09 morsch |
22 | AliMUONSegmentation class has been made independent of AliMUONChamber. This makes | |
23 | it usable with any other geometry class. The link to the object to which it belongs is | |
24 | established via an index. This assumes that there exists a global geometry manager | |
25 | from which the pointer to the parent object can be obtained (in our case gAlice). | |
26 | ||
d81db581 | 27 | Revision 1.3 2000/06/28 15:16:35 morsch |
28 | (1) Client code adapted to new method signatures in AliMUONSegmentation (see comments there) | |
29 | to allow development of slat-muon chamber simulation and reconstruction code in the MUON | |
30 | framework. The changes should have no side effects (mostly dummy arguments). | |
31 | (2) Hit disintegration uses 3-dim hit coordinates to allow simulation | |
32 | of chambers with overlapping modules (MakePadHits, Disintegration). | |
33 | ||
802a864d | 34 | Revision 1.2 2000/06/15 07:58:48 morsch |
35 | Code from MUON-dev joined | |
36 | ||
a9e2aefa | 37 | Revision 1.1.2.5 2000/06/09 21:27:01 morsch |
38 | Most coding rule violations corrected. | |
39 | ||
40 | Revision 1.1.2.4 2000/05/05 11:34:12 morsch | |
41 | Log inside comments. | |
42 | ||
43 | Revision 1.1.2.3 2000/05/05 10:09:52 morsch | |
44 | Log messages included | |
45 | */ | |
46 | ||
47 | #include "AliMUONChamber.h" | |
a9e2aefa | 48 | |
49 | #include "TMath.h" | |
50 | ClassImp(AliMUONChamber) | |
51 | ||
d81db581 | 52 | AliMUONChamber::AliMUONChamber() |
53 | { | |
54 | // Default constructor | |
55 | fSegmentation = new TObjArray(2); | |
56 | (*fSegmentation)[0] = 0; | |
57 | (*fSegmentation)[1] = 0; | |
58 | fResponse=0; | |
59 | fnsec=1; | |
60 | fReconstruction=0; | |
61 | fId=0; | |
62 | } | |
63 | ||
64 | AliMUONChamber::AliMUONChamber(Int_t id) | |
a9e2aefa | 65 | { |
d81db581 | 66 | // Construtor with chamber id |
a9e2aefa | 67 | fSegmentation = new TObjArray(2); |
68 | (*fSegmentation)[0] = 0; | |
69 | (*fSegmentation)[1] = 0; | |
70 | fResponse=0; | |
71 | fnsec=1; | |
72 | fReconstruction=0; | |
d81db581 | 73 | fId=id; |
a9e2aefa | 74 | } |
75 | ||
76 | AliMUONChamber::~AliMUONChamber() | |
77 | { | |
d81db581 | 78 | // Destructor |
a9e2aefa | 79 | if (fSegmentation) delete fSegmentation; |
80 | } | |
81 | ||
82 | AliMUONChamber::AliMUONChamber(const AliMUONChamber& rChamber) | |
83 | { | |
84 | // Dummy copy constructor | |
85 | ; | |
86 | } | |
87 | ||
88 | ||
89 | void AliMUONChamber::Init() | |
90 | { | |
91 | // Initalisation .. | |
92 | // | |
93 | // ... for chamber segmentation | |
94 | if ((*fSegmentation)[0]) | |
a30a000f | 95 | ((AliSegmentation *) (*fSegmentation)[0])->Init(fId); |
a9e2aefa | 96 | |
97 | if (fnsec==2) { | |
98 | if ((*fSegmentation)[1]) | |
a30a000f | 99 | ((AliSegmentation *) (*fSegmentation)[1])->Init(fId); |
a9e2aefa | 100 | } |
101 | } | |
102 | ||
103 | Int_t AliMUONChamber::SigGenCond(Float_t x, Float_t y, Float_t z) | |
104 | { | |
105 | // Ask segmentation if signal should be generated | |
106 | if (fnsec==1) { | |
a30a000f | 107 | return ((AliSegmentation*) (*fSegmentation)[0]) |
a9e2aefa | 108 | ->SigGenCond(x, y, z) ; |
109 | } else { | |
a30a000f | 110 | return (((AliSegmentation*) (*fSegmentation)[0]) |
a9e2aefa | 111 | ->SigGenCond(x, y, z)) || |
a30a000f | 112 | (((AliSegmentation*) (*fSegmentation)[1]) |
a9e2aefa | 113 | ->SigGenCond(x, y, z)) ; |
114 | } | |
115 | } | |
116 | ||
117 | ||
118 | void AliMUONChamber::SigGenInit(Float_t x, Float_t y, Float_t z) | |
119 | { | |
120 | // | |
121 | // Initialisation of segmentation for hit | |
122 | // | |
123 | if (fnsec==1) { | |
a30a000f | 124 | ((AliSegmentation*) (*fSegmentation)[0])->SigGenInit(x, y, z) ; |
a9e2aefa | 125 | } else { |
a30a000f | 126 | ((AliSegmentation*) (*fSegmentation)[0])->SigGenInit(x, y, z) ; |
127 | ((AliSegmentation*) (*fSegmentation)[1])->SigGenInit(x, y, z) ; | |
a9e2aefa | 128 | } |
129 | } | |
130 | ||
131 | void AliMUONChamber::DisIntegration(Float_t eloss, Float_t tof, | |
802a864d | 132 | Float_t xhit, Float_t yhit, Float_t zhit, |
a9e2aefa | 133 | Int_t& nnew,Float_t newclust[6][500]) |
134 | { | |
135 | // | |
136 | // Generates pad hits (simulated cluster) | |
137 | // using the segmentation and the response model | |
138 | Float_t dx, dy; | |
139 | // | |
140 | // Width of the integration area | |
141 | // | |
142 | dx=fResponse->SigmaIntegration()*fResponse->ChargeSpreadX(); | |
143 | dy=fResponse->SigmaIntegration()*fResponse->ChargeSpreadY(); | |
144 | // | |
145 | // Get pulse height from energy loss | |
146 | Float_t qtot = fResponse->IntPH(eloss); | |
147 | // | |
148 | // Loop Over Pads | |
149 | ||
150 | Float_t qcheck=0, qp; | |
151 | nnew=0; | |
ef495f13 | 152 | |
a9e2aefa | 153 | for (Int_t i=1; i<=fnsec; i++) { |
154 | qcheck=0; | |
a30a000f | 155 | AliSegmentation * segmentation= |
156 | (AliSegmentation *) (*fSegmentation)[i-1]; | |
802a864d | 157 | for (segmentation->FirstPad(xhit, yhit, zhit, dx, dy); |
a9e2aefa | 158 | segmentation->MorePads(); |
159 | segmentation->NextPad()) | |
160 | { | |
161 | qp=fResponse->IntXY(segmentation); | |
162 | qp=TMath::Abs(qp); | |
a9e2aefa | 163 | // |
164 | // | |
165 | if (qp > 1.e-4) { | |
ef495f13 | 166 | qcheck+=qp*qtot; |
a9e2aefa | 167 | // |
168 | // --- store signal information | |
169 | newclust[0][nnew]=qtot; // total charge | |
170 | newclust[1][nnew]=segmentation->Ix(); // ix-position of pad | |
171 | newclust[2][nnew]=segmentation->Iy(); // iy-position of pad | |
172 | newclust[3][nnew]=qp * qtot; // charge on pad | |
173 | newclust[4][nnew]=segmentation->ISector(); // sector id | |
174 | newclust[5][nnew]=(Float_t) i; // counter | |
175 | nnew++; | |
ef495f13 | 176 | // if (i==2) printf("\n i, nnew, q %d %d %f", i, nnew, qp*qtot); |
177 | ||
a9e2aefa | 178 | } |
179 | } // Pad loop | |
ef495f13 | 180 | |
a9e2aefa | 181 | } // Cathode plane loop |
182 | } | |
183 | ||
184 | ||
185 | ||
186 | void AliMUONChamber::InitGeo(Float_t zpos) | |
187 | { | |
188 | // sensitive gas gap | |
189 | fdGas= 0.5; | |
190 | // 3% radiation length of aluminum (X0=8.9 cm) | |
191 | fdAlu= 3.0/100*8.9; | |
192 | } | |
193 | ||
194 | ||
195 | AliMUONChamber & AliMUONChamber::operator =(const AliMUONChamber& rhs) | |
196 | { | |
197 | // Dummy assignment operator | |
198 | return *this; | |
199 | } |