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25 // 25 //
26 // 26 //
27 /// \file errProp/errProp.cc 27 /// \file errProp/errProp.cc
28 /// \brief Main program of the errorpropagatio 28 /// \brief Main program of the errorpropagation example
29 // 29 //
30 // ------------------------------------------- 30 // ------------------------------------------------------------
31 // GEANT 4 example main 31 // GEANT 4 example main
32 // ------------------------------------------- 32 // ------------------------------------------------------------
33 // 33 //
34 // History: 34 // History:
35 // - Created: P. Arce May 2007 35 // - Created: P. Arce May 2007
36 // 36 //
37 37
38 #include "ExErrorDetectorConstruction.hh" 38 #include "ExErrorDetectorConstruction.hh"
>> 39 #include "G4SteppingVerbose.hh"
39 40
40 #include "G4ErrorCylSurfaceTarget.hh" <<
41 #include "G4ErrorFreeTrajState.hh" <<
42 #include "G4ErrorGeomVolumeTarget.hh" <<
43 #include "G4ErrorPlaneSurfaceTarget.hh" <<
44 #include "G4ErrorPropagator.hh" 41 #include "G4ErrorPropagator.hh"
45 #include "G4ErrorPropagatorData.hh" 42 #include "G4ErrorPropagatorData.hh"
46 #include "G4ErrorPropagatorManager.hh" 43 #include "G4ErrorPropagatorManager.hh"
>> 44 #include "G4ErrorPlaneSurfaceTarget.hh"
>> 45 #include "G4ErrorCylSurfaceTarget.hh"
>> 46 #include "G4ErrorGeomVolumeTarget.hh"
47 #include "G4ErrorTrackLengthTarget.hh" 47 #include "G4ErrorTrackLengthTarget.hh"
48 #include "G4SteppingVerbose.hh" << 48 #include "G4ErrorFreeTrajState.hh"
49 #include "G4SystemOfUnits.hh" << 49
50 #include "G4UImanager.hh" 50 #include "G4UImanager.hh"
>> 51 #include "G4SystemOfUnits.hh"
51 52
52 void Initialize(); 53 void Initialize();
53 G4ErrorTarget* BuildTarget(G4int iTarget); << 54 G4ErrorTarget* BuildTarget( G4int iTarget );
54 void ProcessEvent(G4int iProp, size_t nEv); << 55 void ProcessEvent( G4int iProp, size_t nEv );
55 void Finalize(); 56 void Finalize();
56 57
57 G4ErrorTarget* theTarget; 58 G4ErrorTarget* theTarget;
58 G4ErrorMode theG4ErrorMode; 59 G4ErrorMode theG4ErrorMode;
59 60
60 //-------------------------------------------- 61 //-------------------------------------------------------------
61 int main() << 62 int main()
62 { 63 {
>> 64
63 Initialize(); 65 Initialize();
64 66
65 //----- Choose propagation mode 67 //----- Choose propagation mode
66 // 0: propagate until target, all steps in o 68 // 0: propagate until target, all steps in one go
67 // 1: propagate until target, returning cont 69 // 1: propagate until target, returning control to the user at each step
68 G4int iProp = 0; 70 G4int iProp = 0;
69 char* prop = std::getenv("G4ERROR_PROP"); 71 char* prop = std::getenv("G4ERROR_PROP");
70 if (prop) { << 72 if( prop ) {
71 if (G4String(prop) == G4String("UNTIL_TARG << 73 if( G4String(prop) == G4String("UNTIL_TARGET") ){
72 iProp = 0; 74 iProp = 0;
73 } << 75 } else if ( G4String(prop) == G4String("STEP_BY_STEP") ) {
74 else if (G4String(prop) == G4String("STEP_ <<
75 iProp = 1; 76 iProp = 1;
76 } << 77 } else {
77 else { << 78 G4Exception("exG4eReco","Fatal error in Argument",
78 G4Exception("exG4eReco", "Fatal error in << 79 FatalErrorInArgument,
79 G4String("Variable G4ERROR_P << 80 G4String("Variable G4ERROR_PROP = " + G4String(prop) +
80 + " It must be: U << 81 " It must be: UNTIL_TARGET or STEP_BY_STEP").c_str());
81 .c_str()); << 82 }
82 } << 83 } else {
83 } << 84 G4Exception("exG4eReco","Fatal error in Argument",
84 else { << 85 JustWarning,
85 G4Exception("exG4eReco", "Fatal error in A << 86 "Variable G4ERROR_PROP not defined, taking it = UNTIL_TARGET");
86 "Variable G4ERROR_PROP not def << 87 }
87 } <<
88 88
89 size_t nEvents = 3; 89 size_t nEvents = 3;
90 for (size_t ii = 0; ii < nEvents; ii++) { << 90 for( size_t ii = 0; ii < nEvents; ii++ ){
91 ProcessEvent(iProp, ii); << 91 ProcessEvent( iProp, ii );
92 } 92 }
93 93
94 Finalize(); 94 Finalize();
>> 95
95 } 96 }
96 97
>> 98
97 //-------------------------------------------- 99 //-------------------------------------------------------------
98 void Initialize() << 100 void Initialize()
99 { 101 {
100 G4VSteppingVerbose::SetInstance(new G4Steppi 102 G4VSteppingVerbose::SetInstance(new G4SteppingVerbose);
101 103
102 // Initialize the GEANT4e manager << 104 // Initialize the GEANT4e manager
103 G4ErrorPropagatorManager* g4emgr = G4ErrorPr << 105 G4ErrorPropagatorManager* g4emgr
104 G4ErrorPropagatorData* g4edata = G4ErrorProp << 106 = G4ErrorPropagatorManager::GetErrorPropagatorManager();
>> 107 G4ErrorPropagatorData* g4edata
>> 108 = G4ErrorPropagatorData::GetErrorPropagatorData();
105 109
106 g4emgr->SetUserInitialization(new ExErrorDet << 110 g4emgr->SetUserInitialization(new ExErrorDetectorConstruction);
107 111
108 G4UImanager::GetUIpointer()->ApplyCommand("/ 112 G4UImanager::GetUIpointer()->ApplyCommand("/exerror/setField -10. kilogauss");
109 113
110 g4emgr->InitGeant4e(); 114 g4emgr->InitGeant4e();
111 115
112 G4UImanager::GetUIpointer()->ApplyCommand("/ 116 G4UImanager::GetUIpointer()->ApplyCommand("/control/verbose 1");
113 G4UImanager::GetUIpointer()->ApplyCommand("/ 117 G4UImanager::GetUIpointer()->ApplyCommand("/tracking/verbose 1");
114 G4UImanager::GetUIpointer()->ApplyCommand("/ 118 G4UImanager::GetUIpointer()->ApplyCommand("/geant4e/limits/stepLength 100 mm");
115 119
116 //----- Choose target type: 120 //----- Choose target type:
117 // 1: PlaneSurfaceTarget 121 // 1: PlaneSurfaceTarget
118 // 2: CylSurfaceTarget 122 // 2: CylSurfaceTarget
119 // 3: GeomVolumeTarget 123 // 3: GeomVolumeTarget
120 // 4: TrackLengthTarget 124 // 4: TrackLengthTarget
121 G4int iTarget = 1; 125 G4int iTarget = 1;
122 char* target = std::getenv("G4ERROR_TARGET") 126 char* target = std::getenv("G4ERROR_TARGET");
123 if (target) { << 127 if( target ) {
124 if (G4String(target) == G4String("PLANE_SU << 128 if( G4String(target) == G4String("PLANE_SURFACE") ) {
125 iTarget = 1; 129 iTarget = 1;
126 } << 130 }else if( G4String(target) == G4String("CYL_SURFACE") ) {
127 else if (G4String(target) == G4String("CYL <<
128 iTarget = 2; 131 iTarget = 2;
129 } << 132 }else if( G4String(target) == G4String("VOLUME") ) {
130 else if (G4String(target) == G4String("VOL <<
131 iTarget = 3; 133 iTarget = 3;
132 } << 134 }else if( G4String(target) == G4String("TRKLEN") ) {
133 else if (G4String(target) == G4String("TRK <<
134 iTarget = 4; 135 iTarget = 4;
135 } << 136 }else {
136 else { << 137 G4Exception("exG4eReco","Fatal error in Argument",
137 G4Exception("exG4eReco", "Fatal error in << 138 FatalErrorInArgument,
138 G4String("Variable G4ERROR_T << 139 G4String("Variable G4ERROR_TARGET = " + G4String(target) +
139 + " It must be: << 140 " It must be: PLANE_SURFACE, CYL_SURFACE, VOLUME, TRKLEN").c_str());
140 .c_str()); << 141 }
141 } << 142 } else {
142 } << 143 G4Exception("exG4eReco","Fatal error in Argument",
143 else { << 144 JustWarning,"Variable G4ERROR_TARGET not defined, taking it = PLANE_SURFACE");
144 G4Exception("exG4eReco", "Fatal error in A << 145 }
145 "Variable G4ERROR_TARGET not d <<
146 } <<
147 146
148 theTarget = BuildTarget(iTarget); << 147 theTarget = BuildTarget( iTarget );
149 g4edata->SetTarget(theTarget); << 148 g4edata->SetTarget( theTarget );
150 149
151 theG4ErrorMode = G4ErrorMode_PropBackwards; 150 theG4ErrorMode = G4ErrorMode_PropBackwards;
152 char* mode = std::getenv("G4ERROR_MODE"); 151 char* mode = std::getenv("G4ERROR_MODE");
153 if (mode) { << 152 if( mode ) {
154 if (G4String(mode) == G4String("FORWARDS") << 153 if( G4String(mode) == G4String("FORWARDS") ) {
155 theG4ErrorMode = G4ErrorMode_PropForward 154 theG4ErrorMode = G4ErrorMode_PropForwards;
156 } << 155 } else if( G4String(mode) == G4String("BACKWARDS") ) {
157 else if (G4String(mode) == G4String("BACKW <<
158 theG4ErrorMode = G4ErrorMode_PropBackwar 156 theG4ErrorMode = G4ErrorMode_PropBackwards;
159 } << 157 } else {
160 else { << 158 G4Exception("exG4eReco","Fatal error in Argument",
161 G4Exception("exG4eReco", "Fatal error in << 159 FatalErrorInArgument,
162 G4String("Variable G4ERROR_M << 160 G4String("Variable G4ERROR_MODE = " + G4String(mode) +
163 + " It must be: << 161 " It must be: FORWARDS or BACKWARDS").c_str());
164 .c_str()); << 162 }
165 } << 163 } else {
166 } << 164 G4Exception("exG4eReco","Fatal error in Argument",
167 else { << 165 JustWarning,"Variable G4ERROR_MODE not defined, taking it = BACKWARDS");
168 G4Exception("exG4eReco", "Fatal error in A << 166 }
169 "Variable G4ERROR_MODE not def << 167
170 } <<
171 } 168 }
172 169
173 void ProcessEvent(G4int iProp, size_t) << 170
>> 171 void ProcessEvent( G4int iProp, size_t )
174 { 172 {
175 // Set the starting trajectory. << 173
176 G4ThreeVector xv3(0, 0, 0); << 174 // Set the starting trajectory.
177 G4ThreeVector pv3(20.0 * GeV, 0.0, 0.0); << 175 G4ThreeVector xv3( 0, 0, 0 );
178 G4ErrorTrajErr error(5, 0); << 176 G4ThreeVector pv3( 20.0*GeV, 0.0, 0.0 );
179 G4ErrorFreeTrajState* g4ErrorTrajState = new << 177 G4ErrorTrajErr error( 5, 0 );
180 << 178 G4ErrorFreeTrajState* g4ErrorTrajState
181 G4ErrorPropagatorManager* g4emgr = G4ErrorPr << 179 = new G4ErrorFreeTrajState( "mu-", xv3, pv3, error );
182 << 180
183 // int ierr = 0; << 181 G4ErrorPropagatorManager* g4emgr
184 << 182 = G4ErrorPropagatorManager::GetErrorPropagatorManager();
185 G4Point3D surfPos(224. * cm, 0., 0.); << 183
186 G4Normal3D surfNorm(1., 0., 0.); << 184 //int ierr = 0;
187 //- G4ErrorTarget* theG4ErrorTarget << 185
>> 186 G4Point3D surfPos(224.*cm,0.,0.);
>> 187 G4Normal3D surfNorm(1.,0.,0.);
>> 188 //- G4ErrorTarget* theG4ErrorTarget
188 // = new G4ErrorPlaneSurfaceTarget(surfN 189 // = new G4ErrorPlaneSurfaceTarget(surfNorm, surfPos );
189 190
190 if (iProp == 0) { << 191 if( iProp == 0){
191 // Propagate until G4ErrorTarget is found 192 // Propagate until G4ErrorTarget is found all in one go
192 // ierr = << 193 //ierr =
193 g4emgr->Propagate(g4ErrorTrajState, theTar << 194 g4emgr->Propagate( g4ErrorTrajState, theTarget, theG4ErrorMode );
194 } << 195 } else if( iProp == 1){
195 else if (iProp == 1) { <<
196 // Propagate until G4ErrorTarget is reache <<
197 196
>> 197 // Propagate until G4ErrorTarget is reached step by step
>> 198
198 g4emgr->InitTrackPropagation(); 199 g4emgr->InitTrackPropagation();
199 200
200 // G4Track* aTrack << 201 // G4Track* aTrack
201 // = G4EventManager::GetEventManager( 202 // = G4EventManager::GetEventManager()->GetTrackingManager()->GetTrack();
202 bool moreEvt = TRUE; 203 bool moreEvt = TRUE;
203 while (moreEvt) { << 204 while( moreEvt ){
204 // ierr = << 205
205 g4emgr->PropagateOneStep(g4ErrorTrajStat << 206 //ierr =
206 << 207 g4emgr->PropagateOneStep( g4ErrorTrajState, theG4ErrorMode );
>> 208
207 //---- Check if target is reached 209 //---- Check if target is reached
208 if (g4emgr->GetPropagator()->CheckIfLast << 210 if( g4emgr->GetPropagator()->CheckIfLastStep( g4ErrorTrajState->GetG4Track() )) {
209 g4emgr->GetPropagator()->InvokePostUse << 211 g4emgr->GetPropagator()
>> 212 ->InvokePostUserTrackingAction( g4ErrorTrajState->GetG4Track() );
210 moreEvt = 0; 213 moreEvt = 0;
211 G4cout << "STEP_BY_STEP propagation: L 214 G4cout << "STEP_BY_STEP propagation: Last Step " << G4endl;
212 } 215 }
213 } 216 }
214 } 217 }
215 218
216 G4cout << " $$$ PROPAGATION ENDED " << G4end 219 G4cout << " $$$ PROPAGATION ENDED " << G4endl;
217 // extract current state info 220 // extract current state info
218 G4Point3D posEnd = g4ErrorTrajState->GetPosi 221 G4Point3D posEnd = g4ErrorTrajState->GetPosition();
219 G4Normal3D momEnd = g4ErrorTrajState->GetMom 222 G4Normal3D momEnd = g4ErrorTrajState->GetMomentum();
220 G4ErrorTrajErr errorEnd = g4ErrorTrajState-> 223 G4ErrorTrajErr errorEnd = g4ErrorTrajState->GetError();
221 224
222 G4cout << " Position: " << posEnd << G4endl << 225 G4cout << " Position: " << posEnd << G4endl
223 << " Error: " << errorEnd << G4endl; << 226 << " Momentum: " << momEnd << G4endl
>> 227 << " Error: " << errorEnd << G4endl;
224 } 228 }
225 229
>> 230
226 //-------------------------------------------- 231 //-------------------------------------------------------------
227 G4ErrorTarget* BuildTarget(G4int iTarget) << 232 G4ErrorTarget* BuildTarget( G4int iTarget )
228 { 233 {
>> 234
229 G4ErrorTarget* target = 0; 235 G4ErrorTarget* target = 0;
230 if (iTarget == 1) { << 236 if( iTarget == 1 ) {
231 G4Point3D surfPos(221. * cm, 0., 0.); << 237 G4Point3D surfPos(221.*cm,0.,0.);
232 G4Normal3D surfNorm(1., 0., 0.); << 238 G4Normal3D surfNorm(1.,0.,0.);
233 target = new G4ErrorPlaneSurfaceTarget(sur << 239 target = new G4ErrorPlaneSurfaceTarget(surfNorm, surfPos );
234 } << 240 }else if( iTarget == 2 ) {
235 else if (iTarget == 2) { << 241 G4double radius = 222*cm;
236 G4double radius = 222 * cm; <<
237 target = new G4ErrorCylSurfaceTarget(radiu 242 target = new G4ErrorCylSurfaceTarget(radius);
238 } << 243 }else if( iTarget == 3 ) {
239 else if (iTarget == 3) { <<
240 target = new G4ErrorGeomVolumeTarget("MUON 244 target = new G4ErrorGeomVolumeTarget("MUON");
241 } << 245 }else if( iTarget == 4 ) {
242 else if (iTarget == 4) { << 246 target = new G4ErrorTrackLengthTarget(223.*cm);
243 target = new G4ErrorTrackLengthTarget(223. << 247 }else {
244 } << 248 G4Exception("exG4eReco","Fatal error in Argument",
245 else { << 249 FatalErrorInArgument,"Target type has to be between 1 and 4");
246 G4Exception("exG4eReco", "Fatal error in A <<
247 "Target type has to be between <<
248 } 250 }
249 return target; 251 return target;
250 } 252 }
251 253
>> 254
252 //-------------------------------------------- 255 //-------------------------------------------------------------
253 void Finalize() 256 void Finalize()
254 { 257 {
255 G4ErrorPropagatorManager::GetErrorPropagator 258 G4ErrorPropagatorManager::GetErrorPropagatorManager()->CloseGeometry();
>> 259
256 } 260 }
257 261