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