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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 | ||
acd84897 | 16 | /* $Id$ */ |
4c039060 | 17 | |
5d8718b8 | 18 | //---------------------------------------------------------------------- |
116cbefd | 19 | // Basic magnetic field class |
5d8718b8 | 20 | // Used in all the detectors, and also in the traking classes |
21 | // Author: | |
22 | //---------------------------------------------------------------------- | |
fe4da5cc | 23 | |
594d8990 | 24 | #include "AliLog.h" |
fe4da5cc | 25 | #include "AliMagF.h" |
972ca52f | 26 | |
fe4da5cc | 27 | ClassImp(AliMagF) |
28 | ||
e2afb3b6 | 29 | //_______________________________________________________________________ |
30 | AliMagF::AliMagF(): | |
31 | fMap(0), | |
32 | fType(0), | |
33 | fInteg(0), | |
604e0531 | 34 | fPrecInteg(1), |
e2afb3b6 | 35 | fFactor(0), |
972ca52f | 36 | fMax(0), |
37 | fReadField(1) | |
e2afb3b6 | 38 | { |
39 | // | |
40 | // Default constructor | |
41 | // | |
42 | } | |
43 | ||
44 | //_______________________________________________________________________ | |
d0f1ee3b | 45 | AliMagF::AliMagF(const char *name, const char *title, Int_t integ, |
46 | Float_t factor, Float_t fmax): | |
e2afb3b6 | 47 | TNamed(name,title), |
48 | fMap(0), | |
49 | fType(0), | |
50 | fInteg(0), | |
604e0531 | 51 | fPrecInteg(1), |
e2afb3b6 | 52 | fFactor(factor), |
972ca52f | 53 | fMax(fmax), |
54 | fReadField(1) | |
fe4da5cc | 55 | { |
aee8290b | 56 | // |
57 | // Standard constructor | |
58 | // | |
d8408e76 | 59 | if(integ<0 || integ > 2) { |
594d8990 | 60 | AliWarning(Form( |
61 | "Invalid magnetic field flag: %5d; Helix tracking chosen instead" | |
62 | ,integ)); | |
e2afb3b6 | 63 | fInteg = 2; |
d8408e76 | 64 | } else { |
e2afb3b6 | 65 | fInteg = integ; |
d8408e76 | 66 | } |
eed8a1a2 | 67 | |
68 | if (fInteg == 0) fPrecInteg = 0; | |
69 | ||
d8408e76 | 70 | fType = kUndef; |
9e1a0ddb | 71 | // |
fe4da5cc | 72 | } |
73 | ||
eeda4611 | 74 | //_______________________________________________________________________ |
75 | AliMagF::AliMagF(const AliMagF &src): | |
76 | TNamed(src), | |
77 | fMap(src.fMap), | |
78 | fType(src.fType), | |
79 | fInteg(src.fInteg), | |
80 | fPrecInteg(src.fPrecInteg), | |
81 | fFactor(src.fFactor), | |
82 | fMax(src.fMax), | |
83 | fReadField(src.fReadField) | |
84 | { | |
85 | // Copy constructor | |
86 | } | |
87 | ||
e2afb3b6 | 88 | //_______________________________________________________________________ |
6f3038e9 | 89 | void AliMagF::Field(Float_t*, Float_t *b) const |
fe4da5cc | 90 | { |
aee8290b | 91 | // |
92 | // Method to return the field in one point -- dummy in this case | |
93 | // | |
594d8990 | 94 | AliWarning("Undefined MagF Field called, returning 0"); |
fe4da5cc | 95 | b[0]=b[1]=b[2]=0; |
96 | } | |
eeda4611 | 97 | |
98 | //_______________________________________________________________________ | |
99 | void AliMagF::GetTPCInt(Float_t *, Float_t *b) const | |
100 | { | |
101 | // | |
102 | // Obtain the integral of the field components in the TPC from given point | |
103 | // to the closest cathod plane | |
104 | // | |
105 | AliWarning("Undefined MagF TPCIntegral called, returning 0"); | |
106 | b[0]=b[1]=b[2]=0; | |
107 | } | |
108 | ||
109 | //_______________________________________________________________________ | |
110 | void AliMagF::GetTPCIntCyl(Float_t *, Float_t *b) const | |
111 | { | |
112 | // | |
113 | // Obtain the integral of the field components in the TPC from given point | |
114 | // to the closest cathod plane | |
115 | // | |
116 | AliWarning("Undefined MagF TPCIntegral called, returning 0"); | |
117 | b[0]=b[1]=b[2]=0; | |
118 | } | |
119 | ||
120 | //_______________________________________________________________________ | |
121 | AliMagF& AliMagF::operator=(const AliMagF& rhs) | |
122 | { | |
123 | // Asignment operator | |
124 | fMap = rhs.fMap; | |
125 | fType = rhs.fType; | |
126 | fInteg = rhs.fInteg; | |
127 | fPrecInteg = rhs.fPrecInteg; | |
128 | fFactor = rhs.fFactor; | |
129 | fMax = rhs.fMax; | |
130 | fReadField = rhs.fReadField; | |
131 | return *this; | |
132 | } | |
eed8a1a2 | 133 | |
134 | void AliMagF::SetPrecInteg(Int_t integ) | |
135 | { | |
136 | if (fInteg > 0) { | |
137 | fPrecInteg = integ; | |
138 | } | |
139 | else if (integ != 0) | |
140 | { | |
141 | AliWarning("Precision integration flag set to 0 \n"); | |
142 | fPrecInteg = 0; | |
143 | } | |
144 | } |