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Please see the license in the file LICENSE and URL above * 16 // * for the full disclaimer and the limitatio 16 // * for the full disclaimer and the limitation of liability. * 17 // * 17 // * * 18 // * This code implementation is the result 18 // * This code implementation is the result of the scientific and * 19 // * technical work of the GEANT4 collaboratio 19 // * technical work of the GEANT4 collaboration. * 20 // * By using, copying, modifying or distri 20 // * By using, copying, modifying or distributing the software (or * 21 // * any work based on the software) you ag 21 // * any work based on the software) you agree to acknowledge its * 22 // * use in resulting scientific publicati 22 // * use in resulting scientific publications, and indicate your * 23 // * acceptance of all terms of the Geant4 Sof 23 // * acceptance of all terms of the Geant4 Software license. * 24 // ******************************************* 24 // ******************************************************************** 25 // 25 // 26 // G4CachedMagneticField implementation << 27 // 26 // 28 // Author: J.Apostolakis, 20 July 2009. << 27 // $Id: G4CachedMagneticField.cc 96751 2016-05-04 09:39:38Z gcosmo $ >> 28 // 29 // ------------------------------------------- 29 // -------------------------------------------------------------------- 30 30 31 #include "G4CachedMagneticField.hh" 31 #include "G4CachedMagneticField.hh" 32 32 33 G4CachedMagneticField::G4CachedMagneticField(G << 33 G4CachedMagneticField::G4CachedMagneticField(G4MagneticField *pMagField, 34 G << 34 G4double distance) 35 : fpMagneticField(pMagField), fDistanceConst << 35 : G4MagneticField(), 36 fLastLocation(DBL_MAX,DBL_MAX,DBL_MAX), fL << 36 fLastLocation(DBL_MAX,DBL_MAX,DBL_MAX), >> 37 fLastValue(DBL_MAX,DBL_MAX,DBL_MAX), >> 38 fCountCalls(0), fCountEvaluations(0) 37 { 39 { 38 ClearCounts(); << 40 fpMagneticField= pMagField; >> 41 fDistanceConst= distance; >> 42 >> 43 // G4cout << " Cached-B-Field constructor> Distance = " << distance << G4endl; >> 44 this->ClearCounts(); 39 } 45 } 40 46 41 G4Field* G4CachedMagneticField::Clone() const 47 G4Field* G4CachedMagneticField::Clone() const 42 { 48 { 43 // Cannot use copy constructor: need to clon << 49 // Cannot use copy constructor: I need to clone the associated magnetic field 44 << 50 G4MagneticField* aF = static_cast<G4MagneticField*>(fpMagneticField->Clone()); 45 auto aF = static_cast<G4MagneticField*>(fpM << 51 G4CachedMagneticField* cloned = new G4CachedMagneticField(aF, fDistanceConst); 46 auto cloned = new G4CachedMagneticField(aF, << 47 52 48 cloned->fLastLocation = fLastLocation; 53 cloned->fLastLocation = fLastLocation; 49 cloned->fLastValue = fLastValue; 54 cloned->fLastValue = fLastValue; 50 return cloned; 55 return cloned; 51 } 56 } 52 57 53 G4CachedMagneticField::~G4CachedMagneticField( << 58 G4CachedMagneticField::~G4CachedMagneticField() >> 59 { >> 60 } 54 61 55 void 62 void 56 G4CachedMagneticField::ReportStatistics() 63 G4CachedMagneticField::ReportStatistics() 57 { 64 { 58 G4cout << " Cached field: " << G4endl 65 G4cout << " Cached field: " << G4endl 59 << " Number of calls: " << f << 66 << " Number of calls: " << fCountCalls << G4endl 60 << " Number of evaluations : " << f << 67 << " Number of evaluations : " << fCountEvaluations << G4endl; 61 } 68 } 62 69 63 G4CachedMagneticField:: << 70 G4CachedMagneticField::G4CachedMagneticField(const G4CachedMagneticField &rightCMF) 64 G4CachedMagneticField(const G4CachedMagneticFi << 65 : G4MagneticField(rightCMF) 71 : G4MagneticField(rightCMF) 66 { 72 { 67 fpMagneticField= rightCMF.fpMagneticField; 73 fpMagneticField= rightCMF.fpMagneticField; // NOTE: sharing pointer here! 68 fDistanceConst = rightCMF.fDistanceConst; 74 fDistanceConst = rightCMF.fDistanceConst; 69 fLastLocation = rightCMF.fLastLocation; 75 fLastLocation = rightCMF.fLastLocation; 70 fLastValue = rightCMF.fLastValue; 76 fLastValue = rightCMF.fLastValue; 71 ClearCounts(); << 77 this->ClearCounts(); 72 } 78 } 73 79 74 G4CachedMagneticField& << 80 G4CachedMagneticField& G4CachedMagneticField::operator = (const G4CachedMagneticField &p) 75 G4CachedMagneticField::operator = (const G4Cac << 76 { 81 { 77 if (&p == this) { return *this; } << 82 if (&p == this) return *this; 78 G4MagneticField::operator=(p); 83 G4MagneticField::operator=(p); 79 fpMagneticField= p.fpMagneticField; // NOTE 84 fpMagneticField= p.fpMagneticField; // NOTE: sharing pointer here! 80 fDistanceConst = p.fDistanceConst; 85 fDistanceConst = p.fDistanceConst; 81 fLastLocation = p.fLastLocation; 86 fLastLocation = p.fLastLocation; 82 fLastValue = p.fLastValue; 87 fLastValue = p.fLastValue; 83 ClearCounts(); << 88 this->ClearCounts(); 84 return *this; 89 return *this; 85 } 90 } 86 91 87 void 92 void 88 G4CachedMagneticField::GetFieldValue( const G4 93 G4CachedMagneticField::GetFieldValue( const G4double Point[4], 89 G4 << 94 G4double *Bfield ) const 90 { 95 { 91 G4ThreeVector newLocation( Point[0], Point[1 96 G4ThreeVector newLocation( Point[0], Point[1], Point[2] ); 92 97 >> 98 // G4cout << "Cache-B-field called at " << newLocation << G4endl; >> 99 93 G4double distSq= (newLocation-fLastLoca 100 G4double distSq= (newLocation-fLastLocation).mag2(); 94 ++fCountCalls; << 101 fCountCalls++; 95 if( distSq < fDistanceConst*fDistanceConst ) << 102 if( distSq < fDistanceConst*fDistanceConst ) { 96 { << 97 Bfield[0] = fLastValue.x(); 103 Bfield[0] = fLastValue.x(); 98 Bfield[1] = fLastValue.y(); 104 Bfield[1] = fLastValue.y(); 99 Bfield[2] = fLastValue.z(); 105 Bfield[2] = fLastValue.z(); 100 } << 106 }else{ 101 else << 107 // G4CachedMagneticField* thisNonC= const_cast<G4CachedMagneticField*>(this); 102 { << 103 fpMagneticField->GetFieldValue( Point, Bf 108 fpMagneticField->GetFieldValue( Point, Bfield ); 104 ++fCountEvaluations; << 109 // G4cout << " Evaluating. " << G4endl; 105 fLastLocation = G4ThreeVector( Point[0], << 110 fCountEvaluations++; 106 fLastValue = G4ThreeVector( Bfield[0], << 111 // thisNonC-> >> 112 fLastLocation= G4ThreeVector( Point[0], Point[1], Point[2] ); >> 113 // thisNonC-> >> 114 fLastValue= G4ThreeVector( Bfield[0], Bfield[1], Bfield[2] ); 107 } 115 } 108 } 116 } 109 117