| [807] | 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 | // GEANT 4 example main
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| 28 | // ------------------------------------------------------------
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| 29 | //
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| 30 | // History:
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| 31 | // - Created: P. Arce May 2007
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| 32 | //
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| 33 |
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| 34 | #include "ExErrorDetectorConstruction.hh"
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| 35 | #include "G4SteppingVerbose.hh"
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| 36 |
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| 37 | #include "G4ErrorPropagator.hh"
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| 38 | #include "G4ErrorPropagatorData.hh"
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| 39 | #include "G4ErrorPropagatorManager.hh"
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| 40 | #include "G4ErrorPlaneSurfaceTarget.hh"
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| 41 | #include "G4ErrorCylSurfaceTarget.hh"
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| 42 | #include "G4ErrorGeomVolumeTarget.hh"
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| 43 | #include "G4ErrorTrackLengthTarget.hh"
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| 44 | #include "G4ErrorFreeTrajState.hh"
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| 45 |
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| 46 | #include "G4UImanager.hh"
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| 47 |
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| 48 | void Initialize();
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| 49 | G4ErrorTarget* BuildTarget( G4int iTarget );
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| 50 | void ProcessEvent( G4int iProp, uint nEv );
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| 51 | void Finalize();
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| 52 |
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| 53 | G4ErrorTarget* theTarget;
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| 54 | G4ErrorMode theG4ErrorMode;
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| 55 |
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| 56 | //-------------------------------------------------------------
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| 57 | int main()
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| 58 | {
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| 59 |
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| 60 | Initialize();
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| 61 |
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| 62 | //----- Choose propagation mode
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| 63 | // 0: propagate until target, all steps in one go
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| 64 | // 1: propagate until target, returning control to the user at each step
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| 65 | G4int iProp = 0;
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| 66 | char* prop = getenv("G4ERROR_PROP");
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| 67 | if( prop ) {
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| 68 | if( G4String(prop) == G4String("UNTIL_TARGET") ){
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| 69 | iProp = 0;
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| 70 | } else if ( G4String(prop) == G4String("STEP_BY_STEP") ) {
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| 71 | iProp = 1;
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| 72 | } else {
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| 73 | G4Exception("exG4eReco","Fatal error in Argument",FatalErrorInArgument,G4String("Variable G4ERROR_PROP = " + G4String(prop) + " It must be: UNTIL_TARGET or STEP_BY_STEP").c_str());
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| 74 | }
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| 75 | } else {
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| 76 | G4Exception("exG4eReco","Fatal error in Argument",JustWarning,"Variable G4ERROR_PROP not defined, taking it = UNTIL_TARGET");
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| 77 | }
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| 78 |
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| 79 | uint nEvents = 3;
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| 80 | for( uint ii = 0; ii < nEvents; ii++ ){
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| 81 | ProcessEvent( iProp, ii );
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| 82 | }
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| 83 |
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| 84 | Finalize();
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| 85 |
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| 86 | }
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| 87 |
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| 88 |
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| 89 | //-------------------------------------------------------------
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| 90 | void Initialize()
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| 91 | {
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| 92 | G4VSteppingVerbose::SetInstance(new G4SteppingVerbose);
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| 93 |
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| 94 | // Initialize the GEANT4e manager
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| 95 | G4ErrorPropagatorManager* g4emgr = G4ErrorPropagatorManager::GetErrorPropagatorManager();
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| 96 | G4ErrorPropagatorData* g4edata = G4ErrorPropagatorData::GetErrorPropagatorData();
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| 97 |
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| 98 | g4emgr->SetUserInitialization(new ExErrorDetectorConstruction);
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| 99 |
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| 100 | G4UImanager::GetUIpointer()->ApplyCommand("/exerror/setField -10. kilogauss");
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| 101 |
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| 102 | g4emgr->InitGeant4e();
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| 103 |
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| 104 | G4UImanager::GetUIpointer()->ApplyCommand("/control/verbose 1");
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| 105 | G4UImanager::GetUIpointer()->ApplyCommand("/tracking/verbose 1");
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| 106 | G4UImanager::GetUIpointer()->ApplyCommand("/geant4e/limits/stepLength 100 mm");
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| 107 |
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| 108 | //----- Choose target type:
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| 109 | // 1: PlaneSurfaceTarget
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| 110 | // 2: CylSurfaceTarget
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| 111 | // 3: GeomVolumeTarget
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| 112 | // 4: TrackLengthTarget
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| 113 | G4int iTarget = 1;
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| 114 | char* target = getenv("G4ERROR_TARGET");
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| 115 | if( target ) {
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| 116 | if( G4String(target) == G4String("PLANE_SURFACE") ) {
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| 117 | iTarget = 1;
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| 118 | }else if( G4String(target) == G4String("CYL_SURFACE") ) {
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| 119 | iTarget = 2;
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| 120 | }else if( G4String(target) == G4String("VOLUME") ) {
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| 121 | iTarget = 3;
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| 122 | }else if( G4String(target) == G4String("TRKLEN") ) {
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| 123 | iTarget = 4;
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| 124 | }else {
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| 125 | G4Exception("exG4eReco","Fatal error in Argument",FatalErrorInArgument,G4String("Variable G4ERROR_TARGET = " + G4String(target) + " It must be: PLANE_SURFACE, CYL_SURFACE, VOLUME, TRKLEN").c_str());
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| 126 | }
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| 127 | } else {
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| 128 | G4Exception("exG4eReco","Fatal error in Argument",JustWarning,"Variable G4ERROR_TARGET not defined, taking it = PLANE_SURFACE");
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| 129 | }
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| 130 |
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| 131 | theTarget = BuildTarget( iTarget );
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| 132 | g4edata->SetTarget( theTarget );
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| 133 |
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| 134 | theG4ErrorMode = G4ErrorMode_PropBackwards;
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| 135 | char* mode = getenv("G4ERROR_MODE");
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| 136 | if( mode ) {
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| 137 | if( G4String(mode) == G4String("FORWARDS") ) {
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| 138 | theG4ErrorMode = G4ErrorMode_PropForwards;
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| 139 | } else if( G4String(mode) == G4String("BACKWARDS") ) {
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| 140 | theG4ErrorMode = G4ErrorMode_PropBackwards;
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| 141 | } else {
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| 142 | G4Exception("exG4eReco","Fatal error in Argument",FatalErrorInArgument,G4String("Variable G4ERROR_MODE = " + G4String(mode) + " It must be: FORWARDS or BACKWARDS").c_str());
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| 143 | }
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| 144 | } else {
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| 145 | G4Exception("exG4eReco","Fatal error in Argument",JustWarning,"Variable G4ERROR_MODE not defined, taking it = BACKWARDS");
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| 146 | }
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| 147 |
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| 148 | }
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| 149 |
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| 150 |
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| 151 | void ProcessEvent( G4int iProp, uint )
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| 152 | {
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| 153 |
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| 154 | // Set the starting trajectory.
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| 155 | G4ThreeVector xv3( 0, 0, 0 );
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| 156 | G4ThreeVector pv3( 20.0*GeV, 0.0, 0.0 );
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| 157 | G4ErrorTrajErr error( 5, 0 );
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| 158 | G4ErrorFreeTrajState* theG4ErrorTrajState = new G4ErrorFreeTrajState( "mu-", xv3, pv3, error );
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| 159 |
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| 160 | G4ErrorPropagatorManager* g4emgr = G4ErrorPropagatorManager::GetErrorPropagatorManager();
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| 161 |
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| 162 | int ierr = 0;
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| 163 |
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| 164 | G4Point3D surfPos(224.*cm,0.,0.);
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| 165 | G4Normal3D surfNorm(1.,0.,0.);
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| 166 | //- G4ErrorTarget* theG4ErrorTarget = new G4ErrorPlaneSurfaceTarget(surfNorm, surfPos );
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| 167 |
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| 168 | if( iProp == 0){
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| 169 | // Propagate until G4ErrorTarget is found all in one go
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| 170 | ierr = g4emgr->Propagate( theG4ErrorTrajState, theTarget, theG4ErrorMode );
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| 171 | } else if( iProp == 1){
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| 172 |
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| 173 | // Propagate until G4ErrorTarget is reached step by step
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| 174 |
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| 175 | g4emgr->InitTrackPropagation();
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| 176 |
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| 177 | // G4Track* aTrack = G4EventManager::GetEventManager()->GetTrackingManager()->GetTrack();
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| 178 | bool moreEvt = TRUE;
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| 179 | while( moreEvt ){
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| 180 |
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| 181 | ierr = g4emgr->PropagateOneStep( theG4ErrorTrajState, theG4ErrorMode );
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| 182 |
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| 183 | //---- Check if target is reached
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| 184 | if( g4emgr->GetPropagator()->CheckIfLastStep( theG4ErrorTrajState->GetG4Track() )) {
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| 185 | g4emgr->GetPropagator()->InvokePostUserTrackingAction( theG4ErrorTrajState->GetG4Track() );
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| 186 | moreEvt = 0;
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| 187 | G4cout << "STEP_BY_STEP propagation: Last Step " << G4endl;
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| 188 | }
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| 189 | }
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| 190 | }
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| 191 |
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| 192 | G4cout << " $$$ PROPAGATION ENDED " << G4endl;
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| 193 | // extract current state info
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| 194 | G4Point3D posEnd = theG4ErrorTrajState->GetPosition();
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| 195 | G4Normal3D momEnd = theG4ErrorTrajState->GetMomentum();
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| 196 | G4ErrorTrajErr errorEnd = theG4ErrorTrajState->GetError();
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| 197 |
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| 198 | G4cout << " Position: " << posEnd << G4endl
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| 199 | << " Momentum: " << momEnd << G4endl
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| 200 | << " Error: " << errorEnd << G4endl;
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| 201 | }
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| 202 |
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| 203 |
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| 204 | //-------------------------------------------------------------
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| 205 | G4ErrorTarget* BuildTarget( G4int iTarget )
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| 206 | {
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| 207 |
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| 208 | G4ErrorTarget* target = 0;
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| 209 | if( iTarget == 1 ) {
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| 210 | G4Point3D surfPos(221.*cm,0.,0.);
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| 211 | G4Normal3D surfNorm(1.,0.,0.);
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| 212 | target = new G4ErrorPlaneSurfaceTarget(surfNorm, surfPos );
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| 213 | }else if( iTarget == 2 ) {
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| 214 | G4double radius = 222*cm;
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| 215 | target = new G4ErrorCylSurfaceTarget(radius);
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| 216 | }else if( iTarget == 3 ) {
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| 217 | target = new G4ErrorGeomVolumeTarget("MUON");
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| 218 | }else if( iTarget == 4 ) {
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| 219 | target = new G4ErrorTrackLengthTarget(223.*cm);
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| 220 | }else {
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| 221 | G4Exception("exG4eReco::BuildTarget. Target type has to be between 1 and 4");
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| 222 | }
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| 223 | return target;
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| 224 | }
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| 225 |
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| 226 |
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| 227 | //-------------------------------------------------------------
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| 228 | void Finalize()
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| 229 | {
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| 230 | G4ErrorPropagatorManager::GetErrorPropagatorManager()->CloseGeometry();
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| 231 |
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| 232 | }
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