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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 | $Log$ | |
18 | Revision 1.7 2000/12/21 22:12:41 morsch | |
19 | Clean-up of coding rule violations, | |
20 | ||
21 | Revision 1.6 2000/10/18 11:42:06 morsch | |
22 | - AliMUONRawCluster contains z-position. | |
23 | - Some clean-up of useless print statements during initialisations. | |
24 | ||
25 | Revision 1.5 2000/10/04 18:50:05 morsch | |
26 | In Init(): (*fDpxD)[fNsec-1]=fDpx; | |
27 | ||
28 | Revision 1.4 2000/10/03 21:48:07 morsch | |
29 | Adopt to const declaration of some of the methods in AliSegmentation. | |
30 | ||
31 | Revision 1.3 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 | ||
37 | Revision 1.2 2000/06/15 07:58:48 morsch | |
38 | Code from MUON-dev joined | |
39 | ||
40 | Revision 1.1.2.1 2000/06/09 21:38:15 morsch | |
41 | AliMUONSegmentationV04 code from AliMUONSegResV04.cxx | |
42 | ||
43 | */ | |
44 | ||
45 | ///////////////////////////////////////////////////// | |
46 | // Segmentation and Response classes version 04 // | |
47 | ///////////////////////////////////////////////////// | |
48 | ||
49 | ||
50 | #include "AliMUONSegmentationV04.h" | |
51 | #include "AliMUONChamber.h" | |
52 | #include "AliMUON.h" | |
53 | #include "AliRun.h" | |
54 | ||
55 | #include <TMath.h> | |
56 | ||
57 | //___________________________________________ | |
58 | ClassImp(AliMUONSegmentationV04) | |
59 | ||
60 | ||
61 | void AliMUONSegmentationV04::Init(Int_t chamber) | |
62 | { | |
63 | ||
64 | // | |
65 | // Fill the arrays fCx (x-contour) and fNpxS (ix-contour) for each sector | |
66 | // These arrays help in converting from real to pad co-ordinates and | |
67 | // vice versa | |
68 | // | |
69 | // Segmentation is defined by rectangular modules approximating | |
70 | // concentric circles as shown below | |
71 | // | |
72 | // PCB module size in cm | |
73 | //printf("\n Initialise Segmentation V04 \n"); | |
74 | ||
75 | const Float_t kDxPCB=40, kDyPCB=40; | |
76 | // PCB distribution (7 rows with 1+3 segmentation regions) | |
77 | const Int_t kpcb[7][4] = {{1, 2, 2, 2}, | |
78 | {0, 3, 2, 2}, | |
79 | {0, 2, 2, 2}, | |
80 | {0, 0, 3, 3}, | |
81 | {0, 0, 2, 3}, | |
82 | {0, 0, 0, 4}, | |
83 | {0, 0, 0, 3}}; | |
84 | ||
85 | ||
86 | // | |
87 | // 3 3 3 | 3 3 3 | |
88 | // 3 3 3 3 | 3 3 3 3 | |
89 | // 3 3 3 2 2 | 2 2 3 3 3 | |
90 | // 3 3 3 2 2 2 | 2 2 2 3 3 3 | |
91 | // 3 3 2 2 1 1 | 1 1 2 2 3 3 | |
92 | // 3 3 2 2 1 1 1 | 1 1 1 2 2 3 3 | |
93 | // 3 3 2 2 1 1 0 | 0 1 1 2 2 3 3 | |
94 | // ------------------------------ | |
95 | // 3 3 2 2 1 1 0 | 0 1 1 2 2 3 3 | |
96 | // 3 3 2 2 1 1 1 | 1 1 1 2 2 3 3 | |
97 | // 3 3 2 2 1 1 | 1 1 2 2 3 3 | |
98 | // 3 3 3 2 2 2 | 2 2 2 3 3 3 | |
99 | // 3 3 3 2 2 | 2 2 3 3 3 | |
100 | // 3 3 3 3 | 3 3 3 3 | |
101 | // 3 3 3 | 3 3 3 | |
102 | // | |
103 | // number of pad rows per PCB | |
104 | // | |
105 | Int_t nPyPCB=Int_t(kDyPCB/fDpy); | |
106 | // | |
107 | // maximum number of pad rows | |
108 | fNpy=7*nPyPCB; | |
109 | // | |
110 | // Calculate padsize along x | |
111 | (*fDpxD)[fNsec-1]=fDpx; | |
112 | if (fNsec > 1) { | |
113 | for (Int_t i=fNsec-2; i>=0; i--){ | |
114 | (*fDpxD)[i]=(*fDpxD)[fNsec-1]/(*fNDiv)[i]; | |
115 | } | |
116 | } | |
117 | // | |
118 | // fill the arrays defining the pad segmentation boundaries | |
119 | // | |
120 | // loop over pcb module rows | |
121 | Int_t iy=0; | |
122 | for (Int_t irow=0; irow<7; irow++) { | |
123 | // | |
124 | // loop over pads along the anode wires | |
125 | for (Int_t i=0; i<=nPyPCB; i++) { | |
126 | // iy counts the padrow | |
127 | iy++; | |
128 | // Loop over sectors (isec=0 is the dead space surounding the beam pipe) | |
129 | for (Int_t isec=0; isec<4; isec++) { | |
130 | if (isec==0) { | |
131 | fNpxS[0][iy]=kpcb[irow][0]*Int_t(kDxPCB/(*fDpxD)[0]); | |
132 | fCx[0][iy]=kpcb[irow][0]*kDxPCB; | |
133 | } else { | |
134 | fNpxS[isec][iy]=fNpxS[isec-1][iy] | |
135 | +kpcb[irow][isec]*Int_t(kDxPCB/(*fDpxD)[isec]); | |
136 | ||
137 | fCx[isec][iy]=fCx[isec-1][iy] | |
138 | +kpcb[irow][isec]*kDxPCB; | |
139 | } | |
140 | } // sectors | |
141 | } // pad raws in module | |
142 | } // PCB rows | |
143 | ||
144 | AliMUON *pMUON = (AliMUON *) gAlice->GetModule("MUON"); | |
145 | fChamber=&(pMUON->Chamber(chamber)); | |
146 | fZ = fChamber->Z(); | |
147 | } | |
148 | ||
149 | void AliMUONSegmentationV04::GiveTestPoints(Int_t &n, Float_t *x, Float_t *y) const | |
150 | { | |
151 | // Returns test point on the pad plane. | |
152 | // Used during determination of the segmoid correction of the COG-method | |
153 | n=3; | |
154 | x[0]=(fCx[1][1]+fCx[0][1])/2/TMath::Sqrt(2.); | |
155 | y[0]=x[0]; | |
156 | x[1]=(fCx[2][1]+fCx[1][1])/2/TMath::Sqrt(2.); | |
157 | y[1]=x[1]; | |
158 | x[2]=(fCx[3][1]+fCx[2][1])/2/TMath::Sqrt(2.); | |
159 | y[2]=x[2]; | |
160 | } | |
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