[831] | 1 | // |
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| 2 | // ******************************************************************** |
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| 3 | // * License and Disclaimer * |
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| 4 | // * * |
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| 5 | // * The Geant4 software is copyright of the Copyright Holders of * |
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| 6 | // * the Geant4 Collaboration. It is provided under the terms and * |
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| 7 | // * conditions of the Geant4 Software License, included in the file * |
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| 8 | // * LICENSE and available at http://cern.ch/geant4/license . These * |
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| 9 | // * include a list of copyright holders. * |
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| 10 | // * * |
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| 11 | // * Neither the authors of this software system, nor their employing * |
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| 12 | // * institutes,nor the agencies providing financial support for this * |
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| 13 | // * work make any representation or warranty, express or implied, * |
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| 14 | // * regarding this software system or assume any liability for its * |
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| 15 | // * use. Please see the license in the file LICENSE and URL above * |
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| 16 | // * for the full disclaimer and the limitation of liability. * |
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| 17 | // * * |
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| 18 | // * This code implementation is the result of the scientific and * |
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| 19 | // * technical work of the GEANT4 collaboration. * |
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| 20 | // * By using, copying, modifying or distributing the software (or * |
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| 21 | // * any work based on the software) you agree to acknowledge its * |
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| 22 | // * use in resulting scientific publications, and indicate your * |
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| 23 | // * acceptance of all terms of the Geant4 Software license. * |
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| 24 | // ******************************************************************** |
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| 25 | // |
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| 26 | // |
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[921] | 27 | // $Id: G4ErrorPropagationNavigator.cc,v 1.2 2008/10/24 14:00:03 gcosmo Exp $ |
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| 28 | // GEANT4 tag $Name: geant4-09-02-cand-01 $ |
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[831] | 29 | // |
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| 30 | // |
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| 31 | // -------------------------------------------------------------------- |
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| 32 | // GEANT 4 class implementation file |
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| 33 | // -------------------------------------------------------------------- |
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| 34 | |
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| 35 | #include "G4ErrorPropagationNavigator.hh" |
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| 36 | |
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| 37 | #include "globals.hh" |
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| 38 | #include "G4ThreeVector.hh" |
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| 39 | #include "G4ErrorPropagatorData.hh" |
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| 40 | #include "G4ErrorSurfaceTarget.hh" |
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| 41 | |
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| 42 | //------------------------------------------------------------------- |
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| 43 | |
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| 44 | G4ErrorPropagationNavigator::G4ErrorPropagationNavigator() |
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| 45 | : G4Navigator() |
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| 46 | { |
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| 47 | } |
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| 48 | |
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| 49 | //------------------------------------------------------------------- |
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| 50 | |
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| 51 | G4ErrorPropagationNavigator::~G4ErrorPropagationNavigator() |
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| 52 | { |
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| 53 | } |
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| 54 | |
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| 55 | //------------------------------------------------------------------- |
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| 56 | |
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| 57 | G4double G4ErrorPropagationNavigator:: |
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| 58 | ComputeStep ( const G4ThreeVector &pGlobalPoint, |
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| 59 | const G4ThreeVector &pDirection, |
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| 60 | const G4double pCurrentProposedStepLength, |
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| 61 | G4double &pNewSafety ) |
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| 62 | { |
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| 63 | G4double Step = G4Navigator::ComputeStep(pGlobalPoint, pDirection, |
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| 64 | pCurrentProposedStepLength, |
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| 65 | pNewSafety); |
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| 66 | |
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| 67 | G4ErrorPropagatorData * g4edata |
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| 68 | = G4ErrorPropagatorData::GetErrorPropagatorData(); |
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| 69 | |
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| 70 | if (g4edata !=0) |
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| 71 | { |
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| 72 | const G4ErrorTarget* target = g4edata->GetTarget(); |
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| 73 | if( target != 0 ) |
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| 74 | { |
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| 75 | G4double StepPlane(target->GetDistanceFromPoint(pGlobalPoint,pDirection)); |
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| 76 | |
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| 77 | if( StepPlane < 0. ) // Negative means target is crossed, will not be found |
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| 78 | { |
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| 79 | StepPlane = DBL_MAX; |
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| 80 | } |
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| 81 | #ifdef G4VERBOSE |
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| 82 | if( G4ErrorPropagatorData::verbose() >= 4 ) |
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| 83 | { |
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| 84 | G4cout << "G4ErrorPropagationNavigator::ComputeStep()" << G4endl |
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| 85 | << " Target step: " << StepPlane |
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| 86 | << ", Transportation step: " << Step << G4endl; |
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| 87 | target->Dump( "G4ErrorPropagationNavigator::ComputeStep Target " ); |
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| 88 | } |
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| 89 | #endif |
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| 90 | |
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| 91 | if(StepPlane<Step) |
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| 92 | { |
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| 93 | #ifdef G4VERBOSE |
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| 94 | if( G4ErrorPropagatorData::verbose() >= 2 ) |
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| 95 | { |
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| 96 | G4cout << "G4ErrorPropagationNavigator::ComputeStep()" << G4endl |
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| 97 | << " TargetCloserThanBoundary: " << StepPlane << " < " |
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| 98 | << Step << G4endl; |
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| 99 | } |
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| 100 | #endif |
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| 101 | Step = StepPlane; |
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| 102 | g4edata->SetState(G4ErrorState_TargetCloserThanBoundary); |
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| 103 | } |
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| 104 | else |
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| 105 | { |
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| 106 | g4edata->SetState(G4ErrorState_Propagating); |
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| 107 | } |
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| 108 | } |
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| 109 | } |
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| 110 | pNewSafety = ComputeSafety(pGlobalPoint, pCurrentProposedStepLength); |
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| 111 | |
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| 112 | #ifdef G4VERBOSE |
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| 113 | if( G4ErrorPropagatorData::verbose() >= 3 ) |
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| 114 | { |
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| 115 | G4cout << "G4ErrorPropagationNavigator::ComputeStep()" << G4endl |
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| 116 | << " Step: " << Step << ", ComputeSafety: " << pNewSafety |
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| 117 | << G4endl; |
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| 118 | } |
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| 119 | #endif |
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| 120 | |
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| 121 | return Step; |
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| 122 | } |
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| 123 | |
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| 124 | //------------------------------------------------------------------- |
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| 125 | |
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| 126 | G4double G4ErrorPropagationNavigator:: |
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| 127 | ComputeSafety( const G4ThreeVector &pGlobalpoint, |
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[921] | 128 | const G4double pMaxLength, |
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| 129 | const G4bool keepState ) |
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[831] | 130 | { |
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[921] | 131 | G4double newSafety = G4Navigator::ComputeSafety(pGlobalpoint, |
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| 132 | pMaxLength, keepState); |
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[831] | 133 | |
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| 134 | G4ErrorPropagatorData *g4edata |
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| 135 | = G4ErrorPropagatorData::GetErrorPropagatorData(); |
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| 136 | |
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| 137 | if (g4edata !=0) |
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| 138 | { |
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| 139 | const G4ErrorTarget* target = g4edata->GetTarget(); |
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| 140 | if( target != 0 ) |
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| 141 | { |
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| 142 | G4double distance = target->GetDistanceFromPoint(pGlobalpoint); |
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| 143 | |
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| 144 | if(distance<newSafety) |
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| 145 | { |
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| 146 | newSafety = distance; |
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| 147 | } |
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| 148 | } |
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| 149 | } |
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| 150 | return newSafety; |
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| 151 | } |
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