[819] | 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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| 27 | // $Id: G4FastTrack.cc,v 1.10 2006/06/29 21:09:34 gunter Exp $ |
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| 28 | // GEANT4 tag $Name: $ |
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| 29 | // |
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| 30 | //--------------------------------------------------------------- |
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| 31 | // |
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| 32 | // G4FastTrack.cc |
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| 33 | // |
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| 34 | // Description: |
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| 35 | // Keeps the current track information and special features |
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| 36 | // for Parameterised Simulation Models. |
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| 37 | // |
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| 38 | // History: |
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| 39 | // Oct 97: Verderi && MoraDeFreitas - First Implementation. |
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| 40 | // |
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| 41 | //--------------------------------------------------------------- |
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| 42 | |
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| 43 | #include "G4ios.hh" |
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| 44 | #include "G4FastTrack.hh" |
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| 45 | #include "G4TransportationManager.hh" |
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| 46 | #include "G4TouchableHistoryHandle.hh" |
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| 47 | |
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| 48 | // ----------- |
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| 49 | // Constructor |
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| 50 | // ----------- |
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| 51 | // |
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| 52 | G4FastTrack::G4FastTrack(G4Envelope *anEnvelope, |
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| 53 | G4bool IsUnique) : |
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| 54 | fAffineTransformationDefined(false), fEnvelope(anEnvelope), |
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| 55 | fIsUnique(IsUnique), fEnvelopeLogicalVolume(0), fEnvelopePhysicalVolume(0), |
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| 56 | fEnvelopeSolid(0) |
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| 57 | {} |
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| 58 | |
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| 59 | // ----------- |
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| 60 | // Destructor: |
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| 61 | // ----------- |
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| 62 | G4FastTrack::~G4FastTrack() |
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| 63 | {} |
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| 64 | |
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| 65 | //------------------------------------------------------------ |
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| 66 | // The parameterised simulation manager uses the SetCurrentTrack |
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| 67 | // method to setup the current G4FastTrack object |
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| 68 | //------------------------------------------------------------ |
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| 69 | void G4FastTrack::SetCurrentTrack(const G4Track& track, |
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| 70 | const G4Navigator* theNavigator) |
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| 71 | { |
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| 72 | |
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| 73 | // -- Register track pointer (used everywhere): |
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| 74 | fTrack = &track; |
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| 75 | |
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| 76 | //----------------------------------------------------- |
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| 77 | // First time the track enters the volume or if the |
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| 78 | // Logical Volume was placed n-Times in the geometry : |
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| 79 | // |
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| 80 | // Records the Rotation+Translation for the Envelope ! |
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| 81 | // When the particle is inside or on the boundary, the |
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| 82 | // NavigationHistory IS UP TO DATE. |
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| 83 | //------------------------------------------------------ |
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| 84 | if (!fAffineTransformationDefined || !fIsUnique) |
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| 85 | FRecordsAffineTransformation(theNavigator); |
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| 86 | |
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| 87 | //------------------------------------------- |
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| 88 | // Records local position/momentum/direction |
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| 89 | // of the Track. |
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| 90 | // They are accessible to the user through a |
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| 91 | // set of Get functions and should be useful |
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| 92 | // to decide to trigger or not. |
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| 93 | //------------------------------------------- |
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| 94 | // -- local position: |
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| 95 | fLocalTrackPosition = fAffineTransformation. |
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| 96 | TransformPoint(fTrack->GetPosition()); |
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| 97 | // -- local momentum: |
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| 98 | fLocalTrackMomentum = fAffineTransformation. |
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| 99 | TransformAxis(fTrack->GetMomentum()); |
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| 100 | // -- local direction: |
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| 101 | fLocalTrackDirection = fLocalTrackMomentum.unit(); |
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| 102 | // -- local polarization: |
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| 103 | fLocalTrackPolarization = fAffineTransformation. |
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| 104 | TransformAxis(fTrack->GetPolarization()); |
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| 105 | } |
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| 106 | |
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| 107 | //------------------------------------ |
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| 108 | // |
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| 109 | // 3D transformation of the envelope |
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| 110 | // This is Done only one time. |
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| 111 | // |
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| 112 | //------------------------------------ |
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| 113 | void |
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| 114 | G4FastTrack::FRecordsAffineTransformation(const G4Navigator* theNavigator) |
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| 115 | { |
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| 116 | |
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| 117 | //-------------------------------------------------------- |
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| 118 | // Get the touchable history which represents the current |
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| 119 | // volume hierachy the particle is in. |
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| 120 | // Note that TouchableHistory allocated by the Navigator |
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| 121 | // must be deleted by G4FastTrack. |
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| 122 | //-------------------------------------------------------- |
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| 123 | const G4Navigator* NavigatorToUse; |
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| 124 | if(theNavigator != 0 ) NavigatorToUse=theNavigator; |
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| 125 | else |
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| 126 | NavigatorToUse= |
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| 127 | G4TransportationManager::GetTransportationManager()-> |
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| 128 | GetNavigatorForTracking(); |
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| 129 | |
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| 130 | G4TouchableHistoryHandle history = |
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| 131 | NavigatorToUse->CreateTouchableHistoryHandle(); |
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| 132 | |
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| 133 | //----------------------------------------------------- |
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| 134 | // Run accross the hierarchy to find the physical volume |
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| 135 | // associated with the envelope |
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| 136 | //----------------------------------------------------- |
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| 137 | G4int depth = history->GetHistory()->GetDepth(); |
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| 138 | G4int idepth, Done = 0; |
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| 139 | for (idepth = 0; idepth <= depth; idepth++) |
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| 140 | { |
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| 141 | G4VPhysicalVolume* currPV = history->GetHistory()->GetVolume(idepth); |
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| 142 | G4LogicalVolume* currLV = currPV->GetLogicalVolume(); |
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| 143 | if ( (currLV->GetRegion() == fEnvelope) && (currLV->IsRootRegion()) ) |
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| 144 | { |
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| 145 | fEnvelopePhysicalVolume = currPV; |
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| 146 | fEnvelopeLogicalVolume = currLV; |
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| 147 | fEnvelopeSolid = currLV->GetSolid(); |
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| 148 | Done = 1; |
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| 149 | break; |
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| 150 | } |
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| 151 | } |
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| 152 | //--------------------------------------------- |
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| 153 | //-- Verification: should be removed in future: |
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| 154 | //--------------------------------------------- |
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| 155 | if ( !Done ) |
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| 156 | { |
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| 157 | G4cout << "WARNING - G4FastTrack::FRecordsAffineTransformation()" |
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| 158 | << G4endl |
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| 159 | << " Can't find transformation for " |
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| 160 | << fEnvelopePhysicalVolume->GetName() << G4endl; |
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| 161 | G4Exception("G4FastTrack::FRecordsAffineTransformation()", |
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| 162 | "InvalidSetup", JustWarning, |
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| 163 | "Transformation for envelope volume not found!"); |
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| 164 | } |
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| 165 | else |
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| 166 | { |
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| 167 | //------------------------------------------------------- |
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| 168 | // Records the transformation and inverse transformation: |
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| 169 | //------------------------------------------------------- |
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| 170 | fAffineTransformation = history->GetHistory()->GetTransform(idepth); |
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| 171 | fInverseAffineTransformation = fAffineTransformation.Inverse(); |
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| 172 | |
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| 173 | fAffineTransformationDefined = true; |
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| 174 | } |
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| 175 | } |
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