]>
Commit | Line | Data |
---|---|---|
4c039060 | 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 | $Log$ | |
c3eff6ad | 18 | Revision 1.3 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 1.2 2000/06/15 07:58:48 morsch |
25 | Code from MUON-dev joined | |
26 | ||
a9e2aefa | 27 | Revision 1.1.2.1 2000/06/09 21:38:46 morsch |
28 | AliMUONSegmentationV05 code from AliMUONSegResV05.cxx | |
29 | ||
4c039060 | 30 | */ |
31 | ||
a897a37a | 32 | ///////////////////////////////////////////////////// |
a9e2aefa | 33 | // Segmentation and Response classes version 05 // |
a897a37a | 34 | ///////////////////////////////////////////////////// |
35 | ||
a897a37a | 36 | |
a9e2aefa | 37 | #include "AliMUONSegmentationV05.h" |
38 | #include <TMath.h> | |
a897a37a | 39 | //___________________________________________ |
a9e2aefa | 40 | ClassImp(AliMUONSegmentationV05) |
a897a37a | 41 | |
42 | ||
d81db581 | 43 | void AliMUONSegmentationV05::Init(Int_t chamber) |
a897a37a | 44 | { |
a9e2aefa | 45 | printf("\n Initialise segmentation v05 \n"); |
a897a37a | 46 | // |
47 | // Fill the arrays fCx (x-contour) and fNpxS (ix-contour) for each sector | |
48 | // These arrays help in converting from real to pad co-ordinates and | |
49 | // vice versa | |
50 | // | |
a9e2aefa | 51 | // Segmentation is defined by rectangular modules approximating |
52 | // concentric circles as shown below | |
a897a37a | 53 | // |
54 | // PCB module size in cm | |
a9e2aefa | 55 | const Float_t kDxPCB=40, kDyPCB=40; |
a897a37a | 56 | // PCB distribution (7 rows with 1+3 segmentation regions) |
57 | const Int_t kpcb[7][4] = {{1, 2, 2, 2}, | |
58 | {0, 3, 2, 2}, | |
59 | {0, 2, 2, 2}, | |
60 | {0, 0, 3, 3}, | |
61 | {0, 0, 2, 3}, | |
62 | {0, 0, 0, 4}, | |
63 | {0, 0, 0, 3}}; | |
64 | ||
65 | ||
66 | // | |
67 | // 3 3 3 | 3 3 3 | |
68 | // 3 3 3 3 | 3 3 3 3 | |
69 | // 3 3 3 2 2 | 2 2 3 3 3 | |
70 | // 3 3 3 2 2 2 | 2 2 2 3 3 3 | |
71 | // 3 3 2 2 1 1 | 1 1 2 2 3 3 | |
72 | // 3 3 2 2 1 1 1 | 1 1 1 2 2 3 3 | |
73 | // 3 3 2 2 1 1 0 | 0 1 1 2 2 3 3 | |
74 | // ------------------------------ | |
75 | // 3 3 2 2 1 1 0 | 0 1 1 2 2 3 3 | |
76 | // 3 3 2 2 1 1 1 | 1 1 1 2 2 3 3 | |
77 | // 3 3 2 2 1 1 | 1 1 2 2 3 3 | |
78 | // 3 3 3 2 2 2 | 2 2 2 3 3 3 | |
79 | // 3 3 3 2 2 | 2 2 3 3 3 | |
80 | // 3 3 3 3 | 3 3 3 3 | |
81 | // 3 3 3 | 3 3 3 | |
82 | // | |
83 | // number of pad rows per PCB | |
84 | // | |
a9e2aefa | 85 | Int_t nPyPCB=Int_t(kDyPCB/fDpy); |
a897a37a | 86 | // |
87 | // maximum number of pad rows | |
a9e2aefa | 88 | fNpy=7*nPyPCB; |
a897a37a | 89 | // |
90 | // Calculate padsize along x | |
c3eff6ad | 91 | (*fDpxD)[fNsec-1]=fDpx; |
a897a37a | 92 | if (fNsec > 1) { |
93 | for (Int_t i=fNsec-2; i>=0; i--){ | |
c3eff6ad | 94 | (*fDpxD)[i]=(*fDpxD)[fNsec-1]/(*fNDiv)[i]; |
95 | printf("\n test ---dx %d %f \n",i,(*fDpxD)[i]); | |
a897a37a | 96 | } |
97 | } | |
98 | // | |
99 | // fill the arrays defining the pad segmentation boundaries | |
100 | // | |
101 | // loop over pcb module rows | |
102 | Int_t iy=0; | |
103 | for (Int_t irow=0; irow<7; irow++) { | |
104 | // | |
105 | // loop over pads along the anode wires | |
a9e2aefa | 106 | for (Int_t i=0; i<=nPyPCB; i++) { |
a897a37a | 107 | // iy counts the padrow |
108 | iy++; | |
109 | // Loop over sectors (isec=0 is the dead space surounding the beam pipe) | |
110 | for (Int_t isec=0; isec<4; isec++) { | |
111 | if (isec==0) { | |
c3eff6ad | 112 | fNpxS[0][iy]=kpcb[irow][0]*Int_t(kDxPCB/(*fDpxD)[0]); |
a9e2aefa | 113 | fCx[0][iy]=kpcb[irow][0]*kDxPCB; |
a897a37a | 114 | } else { |
115 | fNpxS[isec][iy]=fNpxS[isec-1][iy] | |
c3eff6ad | 116 | +kpcb[irow][isec]*Int_t(kDxPCB/(*fDpxD)[isec]); |
a897a37a | 117 | |
118 | fCx[isec][iy]=fCx[isec-1][iy] | |
a9e2aefa | 119 | +kpcb[irow][isec]*kDxPCB; |
a897a37a | 120 | } |
121 | } // sectors | |
122 | } // pad raws in module | |
123 | } // PCB rows | |
124 | /* | |
125 | for (Int_t iy=1; iy< fNpy; iy++) { | |
126 | printf("\nBoundary %d %f %d %f %d %f %d %f", | |
127 | fNpxS[0][iy], fCx[0][iy], | |
128 | fNpxS[1][iy], fCx[1][iy], | |
129 | fNpxS[2][iy], fCx[2][iy], | |
130 | fNpxS[3][iy], fCx[3][iy]); | |
131 | ||
132 | } | |
133 | */ | |
134 | } | |
135 | ||
c3eff6ad | 136 | void AliMUONSegmentationV05::GiveTestPoints(Int_t &n, Float_t *x, Float_t *y) const |
a897a37a | 137 | { |
a9e2aefa | 138 | // Returns test point on the pad plane. |
139 | // Used during determination of the segmoid correction of the COG-method | |
a897a37a | 140 | n=1; |
141 | x[0]=(fCx[1][1]+fCx[0][1])/2/TMath::Sqrt(2.); | |
142 | y[0]=x[0]; | |
a897a37a | 143 | } |
144 | ||
145 | ||
146 | ||
147 | ||
148 | ||
149 | ||
150 | ||
151 | ||
152 | ||
153 | ||
154 | ||
155 | ||
156 | ||
157 | ||
158 | ||
159 | ||
160 |