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25 // 25 //
26 /// \file field/BlineTracer/src/G4BlineEquatio <<
27 /// \brief Implementation of the G4BlineEquati <<
28 // <<
29 // <<
30 // 26 //
>> 27 // $Id: G4BlineEquation.cc,v 1.2 2006/06/29 17:15:07 gunter Exp $
>> 28 // GEANT4 tag $Name: geant4-09-01-patch-02 $
31 // 29 //
>> 30 //
32 // ------------------------------------------- 31 // --------------------------------------------------------------------
33 // 32 //
34 // G4BlineEquation implementation 33 // G4BlineEquation implementation
35 // 34 //
36 // ------------------------------------------- 35 // --------------------------------------------------------------------
37 // Author: Laurent Desorgher (desorgher@phim.u 36 // Author: Laurent Desorgher (desorgher@phim.unibe.ch)
38 // Created - 2003-10-06 37 // Created - 2003-10-06
39 // ------------------------------------------- 38 // --------------------------------------------------------------------
40 39
41 #include "G4BlineEquation.hh" 40 #include "G4BlineEquation.hh"
42 41
43 //....oooOO0OOooo........oooOO0OOooo........oo << 42 ///////////////////////////////////////////////////////////////////////////
>> 43
>> 44 G4BlineEquation::G4BlineEquation( G4MagneticField* MagField )
>> 45 : G4Mag_EqRhs( MagField )
>> 46 {
>> 47 backward_direction=false;
>> 48 direction=1.;
>> 49 }
>> 50
>> 51 ///////////////////////////////////////////////////////////////////////////
44 52
45 G4BlineEquation::G4BlineEquation(G4MagneticFie << 53 G4BlineEquation::~G4BlineEquation()
>> 54 {
>> 55 }
46 56
47 //....oooOO0OOooo........oooOO0OOooo........oo << 57 /////////////////////////////////////////////////////////////////////////////
48 58
49 void G4BlineEquation::EvaluateRhsGivenB(const << 59 void G4BlineEquation::EvaluateRhsGivenB( const G4double y[],
50 G4doub << 60 const G4double B[3],
>> 61 G4double dydx[] ) const
51 { 62 {
52 G4double Bmag = fDirection * std::sqrt(B[0] << 63 G4double Bmag = direction*std::sqrt(B[0]*B[0] + B[1]*B[1] + B[2]*B[2]);
53 dydx[0] = B[0] / Bmag; << 64 dydx[0] = B[0]/Bmag;
54 dydx[1] = B[1] / Bmag; << 65 dydx[1] = B[1]/Bmag;
55 dydx[2] = B[2] / Bmag; << 66 dydx[2] = B[2]/Bmag;
56 << 67
57 dydx[3] = 0. * y[0]; // y[0] is used to rem << 68 dydx[3]=0. * y[0]; //y[0] is used to remove warning
58 dydx[4] = 0.; << 69 dydx[4]=0.;
59 dydx[5] = 0.; << 70 dydx[5]=0.;
60 } 71 }
61 72
62 //....oooOO0OOooo........oooOO0OOooo........oo << 73 //////////////////////////////////////////////////////////////////////
63 74
64 void G4BlineEquation::SetBackwardDirectionOfIn 75 void G4BlineEquation::SetBackwardDirectionOfIntegration(G4bool abool)
65 { 76 {
66 fBackward_direction = abool; << 77 backward_direction=abool;
67 fDirection = 1.; << 78 direction=1.;
68 if (fBackward_direction) fDirection = -1.; << 79 if (backward_direction) direction= -1.;
69 } 80 }
70 81