1 /**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
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 **************************************************************************/
18 //----------------------------------------------------------------------
19 // Basic magnetic field class
20 // Used in all the detectors, and also in the traking classes
22 //----------------------------------------------------------------------
29 //_______________________________________________________________________
40 // Default constructor
44 //_______________________________________________________________________
45 AliMagF::AliMagF(const char *name, const char *title, Int_t integ,
46 Float_t factor, Float_t fmax):
57 // Standard constructor
59 if(integ<0 || integ > 2) {
61 "Invalid magnetic field flag: %5d; Helix tracking chosen instead"
68 if (fInteg == 0) fPrecInteg = 0;
74 //_______________________________________________________________________
75 AliMagF::AliMagF(const AliMagF &src):
80 fPrecInteg(src.fPrecInteg),
83 fReadField(src.fReadField)
88 //_______________________________________________________________________
89 void AliMagF::Field(const float*, float *b) const
92 // Method to return the field in one point -- dummy in this case
94 AliWarning("Undefined MagF Field called, returning 0");
98 //_______________________________________________________________________
99 void AliMagF::Field(const double*, double *b) const
102 // Method to return the field in one point -- dummy in this case
104 AliWarning("Undefined MagF Field called, returning 0");
108 //_______________________________________________________________________
109 void AliMagF::GetTPCInt(Float_t *, Float_t *b) const
112 // Obtain the integral of the field components in the TPC from given point
113 // to the closest cathod plane
115 AliWarning("Undefined MagF TPCIntegral called, returning 0");
119 //_______________________________________________________________________
120 void AliMagF::GetTPCIntCyl(Float_t *, Float_t *b) const
123 // Obtain the integral of the field components in the TPC from given point
124 // to the closest cathod plane
126 AliWarning("Undefined MagF TPCIntegral called, returning 0");
130 //_______________________________________________________________________
131 AliMagF& AliMagF::operator=(const AliMagF& rhs)
133 // Asignment operator
137 fPrecInteg = rhs.fPrecInteg;
138 fFactor = rhs.fFactor;
140 fReadField = rhs.fReadField;
144 void AliMagF::SetPrecInteg(Int_t integ)
151 AliWarning("Precision integration flag set to 0 \n");