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2012850d | 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 | /* $Id$*/ | |
17 | ||
18 | //_________________________________________________________________________ | |
19 | // Geometry class for EMCAL : singleton | |
20 | // EMCAL consists of a shell of Pb | |
21 | // | |
22 | //*-- Author: Yves Schutz (SUBATECH) | |
23 | ||
24 | // --- ROOT system --- | |
25 | ||
26 | // --- Standard library --- | |
27 | ||
28 | #include <iostream.h> | |
29 | ||
30 | // --- AliRoot header files --- | |
31 | ||
32 | #include "AliEMCALGeometry.h" | |
33 | #include "AliConst.h" | |
34 | ||
35 | ClassImp(AliEMCALGeometry) ; | |
36 | ||
37 | AliEMCALGeometry * AliEMCALGeometry::fgGeom = 0 ; | |
38 | Bool_t AliEMCALGeometry::fgInit = kFALSE ; | |
39 | ||
40 | //____________________________________________________________________________ | |
41 | AliEMCALGeometry::~AliEMCALGeometry(void) | |
42 | { | |
43 | // dtor | |
44 | ||
45 | } | |
46 | ||
47 | //____________________________________________________________________________ | |
48 | ||
49 | void AliEMCALGeometry::Init(void) | |
50 | { | |
51 | // Initializes the EMCAL parameters | |
52 | ||
53 | fgInit = kTRUE ; | |
54 | ||
55 | // geometry | |
56 | fAirGap = 5.0 ; | |
57 | fArm1PhiMin = 130.0 ; | |
58 | fArm1PhiMax = 210.0 ; | |
59 | fArm2PhiMin = 330.0 ; | |
60 | fArm2PhiMax = 410.0 ; | |
61 | fIPDistance = 423.0 ; | |
62 | fShellThickness = 50.0 ; | |
63 | fZLength = 817.0 ; | |
64 | fEnvelop[0] = fIPDistance ; | |
65 | fEnvelop[1] = fIPDistance + fShellThickness ; | |
66 | fEnvelop[2] = fZLength ; | |
67 | ||
68 | // material | |
69 | fAmat = 207.2; | |
70 | fZmat = 82.; | |
71 | fDmat = 5.798167 ; | |
72 | fRmat = 1.261061; | |
73 | fEmat = 23 ; | |
74 | ||
75 | } | |
76 | ||
77 | //____________________________________________________________________________ | |
78 | AliEMCALGeometry * AliEMCALGeometry::GetInstance() | |
79 | { | |
80 | // Returns the pointer of the unique instance | |
81 | return (AliEMCALGeometry *) fgGeom ; | |
82 | } | |
83 | ||
84 | //____________________________________________________________________________ | |
85 | AliEMCALGeometry * AliEMCALGeometry::GetInstance(const Text_t* name, const Text_t* title) | |
86 | { | |
87 | // Returns the pointer of the unique instance | |
88 | AliEMCALGeometry * rv = 0 ; | |
89 | if ( fgGeom == 0 ) { | |
90 | if ( strcmp(name,"") == 0 ) | |
91 | rv = 0 ; | |
92 | else { | |
93 | fgGeom = new AliEMCALGeometry(name, title) ; | |
94 | if ( fgInit ) | |
95 | rv = (AliEMCALGeometry * ) fgGeom ; | |
96 | else { | |
97 | rv = 0 ; | |
98 | delete fgGeom ; | |
99 | fgGeom = 0 ; | |
100 | } | |
101 | } | |
102 | } | |
103 | else { | |
104 | if ( strcmp(fgGeom->GetName(), name) != 0 ) { | |
105 | cout << "AliEMCALGeometry <E> : current geometry is " << fgGeom->GetName() << endl | |
106 | << " you cannot call " << name << endl ; | |
107 | } | |
108 | else | |
109 | rv = (AliEMCALGeometry *) fgGeom ; | |
110 | } | |
111 | return rv ; | |
112 | } | |
113 |