[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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[1347] | 27 | // $Id: G4NormalNavigation.cc,v 1.11 2010/11/04 08:57:56 gcosmo Exp $ |
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| 28 | // GEANT4 tag $Name: geant4-09-04-ref-00 $ |
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[831] | 29 | // |
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| 30 | // |
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| 31 | // class G4NormalNavigation Implementation |
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| 32 | // |
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| 33 | // Author: P.Kent, 1996 |
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| 34 | // |
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| 35 | // -------------------------------------------------------------------- |
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| 36 | |
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| 37 | #include "G4NormalNavigation.hh" |
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| 38 | #include "G4AffineTransform.hh" |
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| 39 | |
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| 40 | // ******************************************************************** |
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| 41 | // Constructor |
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| 42 | // ******************************************************************** |
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| 43 | // |
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| 44 | G4NormalNavigation::G4NormalNavigation() |
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[1347] | 45 | : fCheck(false) |
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[831] | 46 | { |
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[1347] | 47 | fLogger = new G4NavigationLogger("G4NormalNavigation"); |
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[831] | 48 | } |
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| 49 | |
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| 50 | // ******************************************************************** |
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| 51 | // Destructor |
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| 52 | // ******************************************************************** |
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| 53 | // |
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| 54 | G4NormalNavigation::~G4NormalNavigation() |
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[1347] | 55 | { |
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| 56 | delete fLogger; |
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| 57 | } |
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[831] | 58 | |
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| 59 | // ******************************************************************** |
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| 60 | // ComputeStep |
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| 61 | // ******************************************************************** |
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| 62 | // |
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| 63 | G4double |
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| 64 | G4NormalNavigation::ComputeStep(const G4ThreeVector &localPoint, |
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| 65 | const G4ThreeVector &localDirection, |
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| 66 | const G4double currentProposedStepLength, |
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| 67 | G4double &newSafety, |
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| 68 | G4NavigationHistory &history, |
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| 69 | G4bool &validExitNormal, |
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| 70 | G4ThreeVector &exitNormal, |
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| 71 | G4bool &exiting, |
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| 72 | G4bool &entering, |
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| 73 | G4VPhysicalVolume *(*pBlockedPhysical), |
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| 74 | G4int &blockedReplicaNo) |
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| 75 | { |
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| 76 | G4VPhysicalVolume *motherPhysical, *samplePhysical, *blockedExitedVol=0; |
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| 77 | G4LogicalVolume *motherLogical; |
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| 78 | G4VSolid *motherSolid; |
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| 79 | G4ThreeVector sampleDirection; |
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| 80 | G4double ourStep=currentProposedStepLength, motherSafety, ourSafety; |
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| 81 | G4int localNoDaughters, sampleNo; |
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| 82 | |
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| 83 | motherPhysical = history.GetTopVolume(); |
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| 84 | motherLogical = motherPhysical->GetLogicalVolume(); |
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| 85 | motherSolid = motherLogical->GetSolid(); |
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| 86 | |
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| 87 | // Compute mother safety |
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| 88 | // |
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| 89 | motherSafety = motherSolid->DistanceToOut(localPoint); |
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| 90 | ourSafety = motherSafety; // Working isotropic safety |
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| 91 | |
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| 92 | #ifdef G4VERBOSE |
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| 93 | if ( fCheck ) |
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| 94 | { |
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[1347] | 95 | fLogger->PreComputeStepLog(motherPhysical, motherSafety, localPoint); |
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[831] | 96 | } |
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| 97 | #endif |
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| 98 | |
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| 99 | // |
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| 100 | // Compute daughter safeties & intersections |
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| 101 | // |
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| 102 | |
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| 103 | // Exiting normal optimisation |
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| 104 | // |
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| 105 | if ( exiting&&validExitNormal ) |
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| 106 | { |
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| 107 | if ( localDirection.dot(exitNormal)>=kMinExitingNormalCosine ) |
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| 108 | { |
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| 109 | // Block exited daughter volume |
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| 110 | // |
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| 111 | blockedExitedVol =* pBlockedPhysical; |
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| 112 | ourSafety = 0; |
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| 113 | } |
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| 114 | } |
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| 115 | exiting = false; |
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| 116 | entering = false; |
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| 117 | |
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| 118 | localNoDaughters = motherLogical->GetNoDaughters(); |
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| 119 | for ( sampleNo=localNoDaughters-1; sampleNo>=0; sampleNo--) |
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| 120 | { |
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| 121 | samplePhysical = motherLogical->GetDaughter(sampleNo); |
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| 122 | if ( samplePhysical!=blockedExitedVol ) |
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| 123 | { |
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| 124 | G4AffineTransform sampleTf(samplePhysical->GetRotation(), |
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| 125 | samplePhysical->GetTranslation()); |
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| 126 | sampleTf.Invert(); |
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| 127 | const G4ThreeVector samplePoint = |
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| 128 | sampleTf.TransformPoint(localPoint); |
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| 129 | const G4VSolid *sampleSolid = |
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| 130 | samplePhysical->GetLogicalVolume()->GetSolid(); |
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| 131 | const G4double sampleSafety = |
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| 132 | sampleSolid->DistanceToIn(samplePoint); |
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[1347] | 133 | #ifdef G4VERBOSE |
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| 134 | if( fCheck ) |
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| 135 | { |
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| 136 | fLogger->PrintDaughterLog(sampleSolid, samplePoint, sampleSafety, 0); |
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| 137 | } |
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| 138 | #endif |
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[831] | 139 | if ( sampleSafety<ourSafety ) |
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| 140 | { |
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| 141 | ourSafety=sampleSafety; |
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| 142 | } |
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| 143 | if ( sampleSafety<=ourStep ) |
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| 144 | { |
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| 145 | sampleDirection = sampleTf.TransformAxis(localDirection); |
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| 146 | const G4double sampleStep = |
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| 147 | sampleSolid->DistanceToIn(samplePoint,sampleDirection); |
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[1347] | 148 | |
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[831] | 149 | #ifdef G4VERBOSE |
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[1347] | 150 | if( fCheck ) |
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[831] | 151 | { |
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[1347] | 152 | fLogger->PrintDaughterLog(sampleSolid, samplePoint, |
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| 153 | sampleSafety, sampleStep); |
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[831] | 154 | } |
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| 155 | #endif |
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| 156 | if ( sampleStep<=ourStep ) |
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| 157 | { |
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| 158 | ourStep = sampleStep; |
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| 159 | entering = true; |
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| 160 | exiting = false; |
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| 161 | *pBlockedPhysical = samplePhysical; |
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| 162 | blockedReplicaNo = -1; |
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| 163 | #ifdef G4VERBOSE |
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[1347] | 164 | if( fCheck ) |
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[831] | 165 | { |
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[1347] | 166 | fLogger->AlongComputeStepLog(sampleSolid, samplePoint, |
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| 167 | sampleDirection, localDirection, sampleSafety, sampleStep); |
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[831] | 168 | } |
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| 169 | #endif |
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| 170 | } |
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| 171 | } |
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| 172 | } |
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| 173 | } |
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| 174 | if ( currentProposedStepLength<ourSafety ) |
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| 175 | { |
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| 176 | // Guaranteed physics limited |
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| 177 | // |
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| 178 | entering = false; |
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| 179 | exiting = false; |
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| 180 | *pBlockedPhysical = 0; |
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| 181 | ourStep = kInfinity; |
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| 182 | } |
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| 183 | else |
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| 184 | { |
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| 185 | // Compute mother intersection if required |
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| 186 | // |
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| 187 | if ( motherSafety<=ourStep ) |
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| 188 | { |
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| 189 | G4double motherStep = motherSolid->DistanceToOut(localPoint, |
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| 190 | localDirection, |
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| 191 | true, |
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| 192 | &validExitNormal, |
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| 193 | &exitNormal); |
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| 194 | #ifdef G4VERBOSE |
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| 195 | if ( fCheck ) |
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| 196 | { |
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[1347] | 197 | fLogger->PostComputeStepLog(motherSolid, localPoint, localDirection, |
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| 198 | motherStep, motherSafety); |
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[831] | 199 | } |
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| 200 | #endif |
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| 201 | |
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| 202 | if ( motherStep<=ourStep ) |
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| 203 | { |
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| 204 | ourStep = motherStep; |
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| 205 | exiting = true; |
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| 206 | entering = false; |
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| 207 | if ( validExitNormal ) |
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| 208 | { |
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| 209 | const G4RotationMatrix *rot = motherPhysical->GetRotation(); |
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| 210 | if (rot) |
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| 211 | { |
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| 212 | exitNormal *= rot->inverse(); |
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| 213 | } |
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| 214 | } |
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| 215 | } |
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| 216 | else |
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| 217 | { |
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| 218 | validExitNormal = false; |
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| 219 | } |
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| 220 | } |
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| 221 | } |
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| 222 | newSafety = ourSafety; |
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| 223 | return ourStep; |
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| 224 | } |
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| 225 | |
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| 226 | // ******************************************************************** |
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| 227 | // ComputeSafety |
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| 228 | // ******************************************************************** |
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| 229 | // |
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| 230 | G4double G4NormalNavigation::ComputeSafety(const G4ThreeVector &localPoint, |
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| 231 | const G4NavigationHistory &history, |
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| 232 | const G4double) |
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| 233 | { |
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| 234 | G4VPhysicalVolume *motherPhysical, *samplePhysical; |
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| 235 | G4LogicalVolume *motherLogical; |
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| 236 | G4VSolid *motherSolid; |
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| 237 | G4double motherSafety, ourSafety; |
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| 238 | G4int localNoDaughters, sampleNo; |
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| 239 | |
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| 240 | motherPhysical = history.GetTopVolume(); |
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| 241 | motherLogical = motherPhysical->GetLogicalVolume(); |
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| 242 | motherSolid = motherLogical->GetSolid(); |
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| 243 | |
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| 244 | // Compute mother safety |
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| 245 | // |
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| 246 | motherSafety = motherSolid->DistanceToOut(localPoint); |
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| 247 | ourSafety = motherSafety; // Working isotropic safety |
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| 248 | |
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| 249 | #ifdef G4VERBOSE |
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[1347] | 250 | if( fCheck ) |
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[831] | 251 | { |
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[1347] | 252 | fLogger->ComputeSafetyLog(motherSolid, localPoint, motherSafety, true); |
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[831] | 253 | } |
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| 254 | #endif |
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| 255 | |
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| 256 | // Compute daughter safeties |
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| 257 | // |
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| 258 | localNoDaughters = motherLogical->GetNoDaughters(); |
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| 259 | for ( sampleNo=localNoDaughters-1; sampleNo>=0; sampleNo-- ) |
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| 260 | { |
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| 261 | samplePhysical = motherLogical->GetDaughter(sampleNo); |
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| 262 | G4AffineTransform sampleTf(samplePhysical->GetRotation(), |
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| 263 | samplePhysical->GetTranslation()); |
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| 264 | sampleTf.Invert(); |
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| 265 | const G4ThreeVector samplePoint = |
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| 266 | sampleTf.TransformPoint(localPoint); |
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| 267 | const G4VSolid *sampleSolid = |
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| 268 | samplePhysical->GetLogicalVolume()->GetSolid(); |
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| 269 | const G4double sampleSafety = |
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| 270 | sampleSolid->DistanceToIn(samplePoint); |
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| 271 | if ( sampleSafety<ourSafety ) |
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| 272 | { |
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| 273 | ourSafety = sampleSafety; |
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| 274 | } |
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| 275 | #ifdef G4VERBOSE |
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[1347] | 276 | if(fCheck) |
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[831] | 277 | { |
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[1347] | 278 | fLogger->ComputeSafetyLog(sampleSolid, samplePoint, sampleSafety, false); |
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[831] | 279 | } |
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| 280 | #endif |
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| 281 | } |
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| 282 | return ourSafety; |
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| 283 | } |
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