Geant4 Cross Reference

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Geant4/geometry/navigation/src/G4MultiNavigator.cc

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Diff markup

Differences between /geometry/navigation/src/G4MultiNavigator.cc (Version 11.3.0) and /geometry/navigation/src/G4MultiNavigator.cc (Version 9.5)


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                                                   >>  25 //
                                                   >>  26 //
                                                   >>  27 // $Id: G4MultiNavigator.cc,v 1.11 2010-09-06 09:49:15 gcosmo Exp $
                                                   >>  28 // GEANT4 tag $ Name:  $
 25 //                                                 29 // 
 26 // class G4MultiNavigator Implementation       <<  30 // class G4PathFinder Implementation
 27 //                                                 31 //
 28 // Author:  John Apostolakis, November 2006        32 // Author:  John Apostolakis, November 2006
 29 // -------------------------------------------     33 // --------------------------------------------------------------------
 30                                                    34 
 31 #include <iomanip>                             << 
 32                                                << 
 33 #include "G4MultiNavigator.hh"                     35 #include "G4MultiNavigator.hh"
 34                                                    36 
 35 class G4FieldManager;                              37 class G4FieldManager;
 36                                                    38 
 37 #include "G4SystemOfUnits.hh"                  << 
 38 #include "G4Navigator.hh"                          39 #include "G4Navigator.hh"
 39 #include "G4PropagatorInField.hh"                  40 #include "G4PropagatorInField.hh"
 40 #include "G4TransportationManager.hh"              41 #include "G4TransportationManager.hh"
 41                                                    42 
 42 // ------------------------------------------- <<  43 #include <iomanip>
 43                                                    44 
 44 G4MultiNavigator::G4MultiNavigator()           <<  45 // ********************************************************************
                                                   >>  46 // Constructor
                                                   >>  47 // ********************************************************************
                                                   >>  48 //
                                                   >>  49 G4MultiNavigator::G4MultiNavigator() 
                                                   >>  50   : G4Navigator(), fLastMassWorld(0)
 45 {                                                  51 {
                                                   >>  52   fNoActiveNavigators= 0; 
 46   G4ThreeVector Big3Vector( kInfinity, kInfini     53   G4ThreeVector Big3Vector( kInfinity, kInfinity, kInfinity ); 
 47   fLastLocatedPosition = Big3Vector;               54   fLastLocatedPosition = Big3Vector;
 48   fSafetyLocation  = Big3Vector;                   55   fSafetyLocation  = Big3Vector;
 49   fPreStepLocation = Big3Vector;                   56   fPreStepLocation = Big3Vector;
 50                                                    57 
 51   for(auto num=0; num< fMaxNav; ++num )        <<  58   fMinSafety_PreStepPt=  -1.0; 
                                                   >>  59   fMinSafety_atSafLocation= -1.0; 
                                                   >>  60   fMinSafety= -kInfinity;  
                                                   >>  61   fTrueMinStep= fMinStep= -kInfinity;  
                                                   >>  62 
                                                   >>  63   for(register int num=0; num< fMaxNav; ++num )
 52   {                                                64   {
 53     fpNavigator[num] = nullptr;                <<  65     fpNavigator[num] =  0;   
 54     fLimitTruth[num] = false;                      66     fLimitTruth[num] = false;
 55     fLimitedStep[num] = kUndefLimited;             67     fLimitedStep[num] = kUndefLimited;
 56     fCurrentStepSize[num] = fNewSafety[num] =      68     fCurrentStepSize[num] = fNewSafety[num] = -1.0; 
 57     fLocatedVolume[num] = nullptr;             <<  69     fLocatedVolume[num] = 0; 
 58   }                                                70   }
 59                                                    71 
 60   pTransportManager= G4TransportationManager::     72   pTransportManager= G4TransportationManager::GetTransportationManager();
 61                                                    73 
 62   G4Navigator* massNav= pTransportManager->Get     74   G4Navigator* massNav= pTransportManager->GetNavigatorForTracking();
 63   if( massNav != nullptr )                     <<  75   if( massNav )
 64   {                                                76   { 
 65     G4VPhysicalVolume* pWorld= massNav->GetWor     77     G4VPhysicalVolume* pWorld= massNav->GetWorldVolume(); 
 66     if( pWorld != nullptr )                    <<  78     if( pWorld )
 67     {                                              79     { 
 68       SetWorldVolume( pWorld );                    80       SetWorldVolume( pWorld ); 
 69       fLastMassWorld = pWorld;                     81       fLastMassWorld = pWorld; 
 70     }                                              82     }
 71   }                                                83   }
 72 }                                              << 
 73                                                << 
 74 // ------------------------------------------- << 
 75                                                    84 
 76 G4MultiNavigator::~G4MultiNavigator() = defaul <<  85   fNoLimitingStep= -1; 
                                                   >>  86   fIdNavLimiting= -1; 
                                                   >>  87 }
 77                                                    88 
 78 // ------------------------------------------- <<  89 G4MultiNavigator::~G4MultiNavigator() 
                                                   >>  90 {
                                                   >>  91 }
 79                                                    92 
 80 G4double G4MultiNavigator::ComputeStep(const G <<  93 G4double G4MultiNavigator::ComputeStep(const G4ThreeVector &pGlobalPoint,
 81                                        const G <<  94                                        const G4ThreeVector &pDirection,
 82                                        const G     95                                        const G4double       proposedStepLength,
 83                                              G <<  96                                              G4double      &pNewSafety)
 84 {                                                  97 {
 85   G4double safety= 0.0, step=0.0;                  98   G4double safety= 0.0, step=0.0;
 86   G4double minSafety= kInfinity, minStep= kInf     99   G4double minSafety= kInfinity, minStep= kInfinity;
 87                                                   100 
 88   fNoLimitingStep= -1;                            101   fNoLimitingStep= -1; 
 89   fIdNavLimiting= -1;     // Reset for new ste    102   fIdNavLimiting= -1;     // Reset for new step
 90                                                   103 
 91 #ifdef G4DEBUG_NAVIGATION                         104 #ifdef G4DEBUG_NAVIGATION
 92   if( fVerbose > 2 )                              105   if( fVerbose > 2 )
 93   {                                               106   {
 94     G4cout << " G4MultiNavigator::ComputeStep     107     G4cout << " G4MultiNavigator::ComputeStep : entered " << G4endl;
 95     G4cout << "   Input position= " << pGlobal    108     G4cout << "   Input position= " << pGlobalPoint
 96            << "   direction= "      << pDirect    109            << "   direction= "      << pDirection         << G4endl;
 97     G4cout << "   Requested step= " << propose    110     G4cout << "   Requested step= " << proposedStepLength << G4endl;
 98   }                                               111   }
 99 #endif                                            112 #endif
100                                                   113 
101   std::vector<G4Navigator*>::iterator pNavigat    114   std::vector<G4Navigator*>::iterator pNavigatorIter;
102                                                   115 
103   pNavigatorIter= pTransportManager-> GetActiv    116   pNavigatorIter= pTransportManager-> GetActiveNavigatorsIterator();
104                                                   117 
105   G4ThreeVector initialPosition = pGlobalPoint    118   G4ThreeVector initialPosition = pGlobalPoint;
106   G4ThreeVector initialDirection= pDirection;     119   G4ThreeVector initialDirection= pDirection;
107                                                   120 
108   for( auto num=0; num< fNoActiveNavigators; + << 121   for( register int num=0; num< fNoActiveNavigators; ++pNavigatorIter,++num )
109   {                                               122   {
110      safety= kInfinity;                           123      safety= kInfinity;
111                                                   124 
112      step= (*pNavigatorIter)->ComputeStep( ini    125      step= (*pNavigatorIter)->ComputeStep( initialPosition, 
113                                            ini    126                                            initialDirection,
114                                            pro    127                                            proposedStepLength,
115                                            saf    128                                            safety ); 
116      if( safety < minSafety ){ minSafety = saf    129      if( safety < minSafety ){ minSafety = safety; } 
117      if( step < minStep )    { minStep= step;     130      if( step < minStep )    { minStep= step; } 
118                                                   131 
119      fCurrentStepSize[num] = step;                132      fCurrentStepSize[num] = step; 
120      fNewSafety[num]= safety;                     133      fNewSafety[num]= safety; 
121       // This is currently the safety from the    134       // This is currently the safety from the last sub-step
122                                                   135 
123 #ifdef G4DEBUG_NAVIGATION                         136 #ifdef G4DEBUG_NAVIGATION
124      if( fVerbose > 2 )                           137      if( fVerbose > 2 )
125      {                                            138      {
126        G4cout << "G4MultiNavigator::ComputeSte    139        G4cout << "G4MultiNavigator::ComputeStep : Navigator ["
127               << num << "] -- step size " << s    140               << num << "] -- step size " << step
128               << " safety= " << safety << G4en    141               << " safety= " << safety << G4endl;
129      }                                            142      }
130 #endif                                            143 #endif
131   }                                               144   } 
132                                                   145 
133   // Save safety value, related position          146   // Save safety value, related position
134   //                                              147   //
135   fPreStepLocation     = initialPosition;         148   fPreStepLocation     = initialPosition; 
136   fMinSafety_PreStepPt = minSafety;               149   fMinSafety_PreStepPt = minSafety;
137   fMinStep = minStep;                             150   fMinStep = minStep; 
138                                                   151 
139   if( fMinStep == kInfinity )                     152   if( fMinStep == kInfinity )
140   {                                               153   {
141      fTrueMinStep = proposedStepLength;   //      154      fTrueMinStep = proposedStepLength;   //  Use this below for endpoint !!
142   }                                               155   }
143   else                                            156   else
144   {                                               157   {
145      fTrueMinStep = minStep;                      158      fTrueMinStep = minStep;
146   }                                               159   }
147                                                   160 
148 #ifdef G4DEBUG_NAVIGATION                         161 #ifdef G4DEBUG_NAVIGATION
149   if( fVerbose > 1 )                              162   if( fVerbose > 1 )
150   {                                               163   {
151     G4ThreeVector endPosition = initialPositio    164     G4ThreeVector endPosition = initialPosition+fTrueMinStep*initialDirection;
152                                                   165 
153     G4int oldPrec = G4cout.precision(8);          166     G4int oldPrec = G4cout.precision(8); 
154     G4cout << "G4MultiNavigator::ComputeStep :    167     G4cout << "G4MultiNavigator::ComputeStep : "
155            << " initialPosition = " << initial    168            << " initialPosition = " << initialPosition 
156            << " and endPosition = " << endPosi    169            << " and endPosition = " << endPosition << G4endl;
157     G4cout.precision( oldPrec );                  170     G4cout.precision( oldPrec );
158   }                                               171   }
159 #endif                                            172 #endif
160                                                   173 
161   pNewSafety = minSafety;                         174   pNewSafety = minSafety; 
162                                                   175 
163   this->WhichLimited();                           176   this->WhichLimited(); 
164                                                   177 
165 #ifdef G4DEBUG_NAVIGATION                         178 #ifdef G4DEBUG_NAVIGATION
166   if( fVerbose > 2 )                              179   if( fVerbose > 2 )
167   {                                               180   {
168     G4cout << " G4MultiNavigator::ComputeStep     181     G4cout << " G4MultiNavigator::ComputeStep : exits returning "
169            << minStep << G4endl;                  182            << minStep << G4endl;
170   }                                               183   }
171 #endif                                            184 #endif
172                                                   185 
173   return minStep;  // must return kInfinity if    186   return minStep;  // must return kInfinity if do not limit step
174 }                                                 187 }
175                                                   188 
176 // -------------------------------------------    189 // ----------------------------------------------------------------------
177                                                   190 
178 G4double                                          191 G4double 
179 G4MultiNavigator::ObtainFinalStep( G4int     n    192 G4MultiNavigator::ObtainFinalStep( G4int     navigatorId, 
180                                    G4double& p << 193                                    G4double &pNewSafety,  // for this geometry
181                                    G4double& m << 194                                    G4double &minStep,
182                                    ELimited& l << 195                                    ELimited &limitedStep) 
183 {                                                 196 {
184   if( navigatorId > fNoActiveNavigators )         197   if( navigatorId > fNoActiveNavigators )
185   {                                               198   { 
186      std::ostringstream message;                  199      std::ostringstream message;
187      message << "Bad Navigator Id!" << G4endl     200      message << "Bad Navigator Id!" << G4endl
188              << "        Navigator Id = " << n    201              << "        Navigator Id = " << navigatorId 
189              << "        No Active = " << fNoA    202              << "        No Active = " << fNoActiveNavigators << ".";
190      G4Exception("G4MultiNavigator::ObtainFina    203      G4Exception("G4MultiNavigator::ObtainFinalStep()", "GeomNav0002",
191                  FatalException, message);        204                  FatalException, message); 
192   }                                               205   }
193                                                   206 
194   // Prepare the information to return            207   // Prepare the information to return
195   //                                              208   //
196   pNewSafety  = fNewSafety[ navigatorId ];        209   pNewSafety  = fNewSafety[ navigatorId ]; 
197   limitedStep = fLimitedStep[ navigatorId ];      210   limitedStep = fLimitedStep[ navigatorId ];
198   minStep= fMinStep;                              211   minStep= fMinStep; 
199                                                   212 
200 #ifdef G4DEBUG_NAVIGATION                         213 #ifdef G4DEBUG_NAVIGATION
201   if( fVerbose > 1 )                              214   if( fVerbose > 1 )
202   {                                               215   { 
203      G4cout << " G4MultiNavigator::ComputeStep    216      G4cout << " G4MultiNavigator::ComputeStep returns "
204             << fCurrentStepSize[ navigatorId ]    217             << fCurrentStepSize[ navigatorId ]
205             << " for Navigator " << navigatorI    218             << " for Navigator " << navigatorId
206             << " Limited step = " << limitedSt    219             << " Limited step = " << limitedStep 
207             << " Safety(mm) = " << pNewSafety     220             << " Safety(mm) = " << pNewSafety / mm << G4endl; 
208   }                                               221   }
209 #endif                                            222 #endif
210                                                   223 
211   return fCurrentStepSize[ navigatorId ];         224   return fCurrentStepSize[ navigatorId ];
212 }                                                 225 }
213                                                   226 
214 // -------------------------------------------    227 // ----------------------------------------------------------------------
215                                                   228 
216 void G4MultiNavigator::PrepareNewTrack( const  << 229 void G4MultiNavigator::PrepareNewTrack( const G4ThreeVector position, 
217                                         const     230                                         const G4ThreeVector direction )
218 {                                                 231 {
219 #ifdef G4DEBUG_NAVIGATION                         232 #ifdef G4DEBUG_NAVIGATION
220   if( fVerbose > 1 )                              233   if( fVerbose > 1 )
221   {                                               234   {
222     G4cout << " Entered G4MultiNavigator::Prep    235     G4cout << " Entered G4MultiNavigator::PrepareNewTrack() " << G4endl;
223   }                                               236   }
224 #endif                                            237 #endif
225                                                   238 
226   G4MultiNavigator::PrepareNavigators();          239   G4MultiNavigator::PrepareNavigators(); 
227                                                   240 
228   LocateGlobalPointAndSetup( position, &direct    241   LocateGlobalPointAndSetup( position, &direction, false, false );   
229   //                                              242   //
230   // The first location for each Navigator mus    243   // The first location for each Navigator must be non-relative
231   // or else call ResetStackAndState() for eac    244   // or else call ResetStackAndState() for each Navigator
232   // Use direction to get correct side of boun    245   // Use direction to get correct side of boundary (ignore dir= false)
233 }                                                 246 }
234                                                   247 
235 // -------------------------------------------    248 // ----------------------------------------------------------------------
236                                                   249 
237 void G4MultiNavigator::PrepareNavigators()        250 void G4MultiNavigator::PrepareNavigators()
238 {                                                 251 {
239   // Key purposes:                                252   // Key purposes:
240   //   - Check and cache set of active navigat    253   //   - Check and cache set of active navigators
241   //   - Reset state for new track                254   //   - Reset state for new track
242                                                   255 
243 #ifdef G4DEBUG_NAVIGATION                         256 #ifdef G4DEBUG_NAVIGATION
244   if( fVerbose > 1 )                              257   if( fVerbose > 1 )
245   {                                               258   {
246     G4cout << " Entered G4MultiNavigator::Prep    259     G4cout << " Entered G4MultiNavigator::PrepareNavigators() " << G4endl;
247   }                                               260   }
248 #endif                                            261 #endif
249                                                   262 
250   // Message the transportation-manager to fin    263   // Message the transportation-manager to find active navigators
251                                                   264 
252   std::vector<G4Navigator*>::const_iterator pN << 265   std::vector<G4Navigator*>::iterator pNavigatorIter; 
253   fNoActiveNavigators = (G4int)pTransportManag << 266   fNoActiveNavigators=  pTransportManager-> GetNoActiveNavigators();
254                                                   267 
255   if( fNoActiveNavigators > fMaxNav )             268   if( fNoActiveNavigators > fMaxNav )
256   {                                               269   {
257     std::ostringstream message;                   270     std::ostringstream message;
258     message << "Too many active Navigators / w    271     message << "Too many active Navigators / worlds !" << G4endl
259             << "        Active Navigators (wor    272             << "        Active Navigators (worlds): "
260             << fNoActiveNavigators << G4endl      273             << fNoActiveNavigators << G4endl
261             << "        which is more than the    274             << "        which is more than the number allowed: "
262             << fMaxNav << " !";                   275             << fMaxNav << " !";
263     G4Exception("G4MultiNavigator::PrepareNavi    276     G4Exception("G4MultiNavigator::PrepareNavigators()", "GeomNav0002",  
264                 FatalException, message);         277                 FatalException, message); 
265   }                                               278   }
266                                                   279 
267   pNavigatorIter= pTransportManager->GetActive << 280   pNavigatorIter= pTransportManager-> GetActiveNavigatorsIterator();
268   for( auto num=0; num< fNoActiveNavigators; + << 281   for( register int num=0; num< fNoActiveNavigators; ++pNavigatorIter,++num )
269   {                                               282   {
270      fpNavigator[num] = *pNavigatorIter;       << 283      fpNavigator[num] =  *pNavigatorIter;   
271      fLimitTruth[num] = false;                    284      fLimitTruth[num] = false;
272      fLimitedStep[num] = kDoNot;                  285      fLimitedStep[num] = kDoNot;
273      fCurrentStepSize[num] = 0.0;                 286      fCurrentStepSize[num] = 0.0; 
274      fLocatedVolume[num] = nullptr;            << 287      fLocatedVolume[num] = 0; 
275   }                                               288   }
276   fWasLimitedByGeometry = false;                  289   fWasLimitedByGeometry = false; 
277                                                   290 
278   // Check the world volume of the mass naviga    291   // Check the world volume of the mass navigator
279   // in case a call to SetWorldVolume() change    292   // in case a call to SetWorldVolume() changed it
280                                                   293 
281   G4VPhysicalVolume* massWorld = GetWorldVolum    294   G4VPhysicalVolume* massWorld = GetWorldVolume();
282                                                   295 
283   if( (massWorld != fLastMassWorld) && (massWo << 296   if( (massWorld != fLastMassWorld) && (massWorld!=0) )
284   {                                               297   { 
285      // Pass along change to Mass Navigator       298      // Pass along change to Mass Navigator
286      fpNavigator[0] -> SetWorldVolume( massWor    299      fpNavigator[0] -> SetWorldVolume( massWorld );
287                                                   300 
288 #ifdef G4DEBUG_NAVIGATION                         301 #ifdef G4DEBUG_NAVIGATION
289      if( fVerbose > 0 )                           302      if( fVerbose > 0 )
290      {                                            303      { 
291        G4cout << " G4MultiNavigator::PrepareNa    304        G4cout << " G4MultiNavigator::PrepareNavigators() changed world volume " 
292               << " for mass geometry to " << m    305               << " for mass geometry to " << massWorld->GetName() << G4endl; 
293      }                                            306      }
294 #endif                                            307 #endif
295                                                   308 
296      fLastMassWorld = massWorld;                  309      fLastMassWorld = massWorld;
297   }                                               310   }
298 }                                                 311 }
299                                                   312 
300 // -------------------------------------------    313 // ----------------------------------------------------------------------
301                                                   314 
302 G4VPhysicalVolume*                                315 G4VPhysicalVolume* 
303 G4MultiNavigator::LocateGlobalPointAndSetup(co    316 G4MultiNavigator::LocateGlobalPointAndSetup(const G4ThreeVector& position,
304                                             co    317                                             const G4ThreeVector* pDirection,
305                                             co    318                                             const G4bool pRelativeSearch,
306                                             co    319                                             const G4bool ignoreDirection )
307 {                                                 320 {
308   // Locate the point in each geometry            321   // Locate the point in each geometry
309                                                   322 
310   G4ThreeVector direction(0.0, 0.0, 0.0);         323   G4ThreeVector direction(0.0, 0.0, 0.0);
311   G4bool relative = pRelativeSearch;              324   G4bool relative = pRelativeSearch; 
312   auto pNavIter = pTransportManager->GetActive << 325   std::vector<G4Navigator*>::iterator pNavIter
                                                   >> 326     = pTransportManager->GetActiveNavigatorsIterator(); 
313                                                   327 
314   if( pDirection != nullptr ) { direction = *p << 328   if( pDirection ) { direction = *pDirection; }
315                                                   329 
316 #ifdef G4DEBUG_NAVIGATION                         330 #ifdef G4DEBUG_NAVIGATION
317   if( fVerbose > 2 )                              331   if( fVerbose > 2 )
318   {                                               332   {
319     G4cout << " Entered G4MultiNavigator::Loca    333     G4cout << " Entered G4MultiNavigator::LocateGlobalPointAndSetup() "
320            << G4endl;                             334            << G4endl;
321     G4cout << "   Locating at position: " << p    335     G4cout << "   Locating at position: " << position
322            << ", with direction: " << directio    336            << ", with direction: " << direction << G4endl
323            << "   Relative: " << relative         337            << "   Relative: " << relative 
324            << ", ignore direction: " << ignore    338            << ", ignore direction: " << ignoreDirection << G4endl;
325     G4cout << "   Number of active navigators:    339     G4cout << "   Number of active navigators: " << fNoActiveNavigators
326            << G4endl;                             340            << G4endl;
327   }                                               341   }
328 #endif                                            342 #endif
329                                                   343 
330   for ( auto num=0; num< fNoActiveNavigators ; << 344   for ( register int num=0; num< fNoActiveNavigators ; ++pNavIter,++num )
331   {                                               345   {
332      if( fWasLimitedByGeometry && fLimitTruth[    346      if( fWasLimitedByGeometry && fLimitTruth[num] )
333      {                                            347      { 
334         (*pNavIter)->SetGeometricallyLimitedSt    348         (*pNavIter)->SetGeometricallyLimitedStep(); 
335      }                                            349      }
336                                                   350 
337      G4VPhysicalVolume *pLocated                  351      G4VPhysicalVolume *pLocated
338        = (*pNavIter)->LocateGlobalPointAndSetu    352        = (*pNavIter)->LocateGlobalPointAndSetup( position, &direction,
339                                                   353                                                  relative, ignoreDirection );   
340      // Set the state related to the location     354      // Set the state related to the location
341      //                                           355      //
342      fLocatedVolume[num] = pLocated;              356      fLocatedVolume[num] = pLocated; 
343                                                   357 
344      // Clear state related to the step           358      // Clear state related to the step
345      //                                           359      //
346      fLimitedStep[num]   = kDoNot;                360      fLimitedStep[num]   = kDoNot; 
347      fCurrentStepSize[num] = 0.0;                 361      fCurrentStepSize[num] = 0.0;      
348      fLimitTruth[ num ] = false;   // Always c    362      fLimitTruth[ num ] = false;   // Always clear on locating (see Navigator)
349                                                   363     
350 #ifdef G4DEBUG_NAVIGATION                         364 #ifdef G4DEBUG_NAVIGATION
351      if( fVerbose > 2 )                           365      if( fVerbose > 2 )
352      {                                            366      {
353        G4cout << " Located in world: " << num     367        G4cout << " Located in world: " << num << ", at: " << position << G4endl
354               << " Used geomLimStp: " << fLimi    368               << " Used geomLimStp: " << fLimitTruth[num]
355               << ", found in volume: " << pLoc    369               << ", found in volume: " << pLocated << G4endl; 
356        G4cout << " Name = '" ;                    370        G4cout << " Name = '" ;       
357        if( pLocated )                             371        if( pLocated )
358        {                                          372        { 
359          G4cout << pLocated->GetName() << "'";    373          G4cout << pLocated->GetName() << "'"; 
360          G4cout << " - CopyNo= " << pLocated->    374          G4cout << " - CopyNo= " << pLocated->GetCopyNo(); 
361        }                                          375        }
362        else                                       376        else
363        {                                          377        { 
364          G4cout <<  "Null'   Id: Not-Set ";       378          G4cout <<  "Null'   Id: Not-Set "; 
365        }                                          379        }
366        G4cout << G4endl;                          380        G4cout << G4endl; 
367      }                                            381      }
368 #endif                                            382 #endif
369   }                                               383   }
370                                                   384 
371   fWasLimitedByGeometry = false;   // Clear on    385   fWasLimitedByGeometry = false;   // Clear on locating
372   G4VPhysicalVolume* volMassLocated = fLocated << 386   G4VPhysicalVolume* volMassLocated= fLocatedVolume[0]; 
373                                                   387 
374   return volMassLocated;                          388   return volMassLocated;
375 }                                                 389 }
376                                                   390 
377 // -------------------------------------------    391 // ----------------------------------------------------------------------
378                                                   392 
379 void                                              393 void
380 G4MultiNavigator::LocateGlobalPointWithinVolum    394 G4MultiNavigator::LocateGlobalPointWithinVolume(const G4ThreeVector& position)
381 {                                                 395 {
382   // Relocate the point in each geometry          396   // Relocate the point in each geometry
383                                                   397 
384   auto pNavIter = pTransportManager->GetActive << 398   std::vector<G4Navigator*>::iterator pNavIter
                                                   >> 399     = pTransportManager->GetActiveNavigatorsIterator(); 
385                                                   400 
386 #ifdef G4DEBUG_NAVIGATION                         401 #ifdef G4DEBUG_NAVIGATION
387   if( fVerbose > 2 )                              402   if( fVerbose > 2 )
388   {                                               403   {
389     G4cout << " Entered G4MultiNavigator::ReLo    404     G4cout << " Entered G4MultiNavigator::ReLocate() " << G4endl
390            << "  Re-locating at position: " <<    405            << "  Re-locating at position: " << position  << G4endl; 
391   }                                               406   }
392 #endif                                            407 #endif
393                                                   408 
394   for ( auto num=0; num< fNoActiveNavigators ; << 409   for ( register int num=0; num< fNoActiveNavigators ; ++pNavIter,++num )
395   {                                               410   {
396      //  ... none limited the step                411      //  ... none limited the step
397                                                   412 
398      (*pNavIter)->LocateGlobalPointWithinVolum    413      (*pNavIter)->LocateGlobalPointWithinVolume( position ); 
399                                                   414 
400      // Clear state related to the step           415      // Clear state related to the step
401      //                                           416      //
402      fLimitedStep[num]     = kDoNot;              417      fLimitedStep[num]     = kDoNot; 
403      fCurrentStepSize[num] = 0.0;                 418      fCurrentStepSize[num] = 0.0;      
404                                                   419 
405      fLimitTruth[ num ] = false;   // Always c    420      fLimitTruth[ num ] = false;   // Always clear on locating (see Navigator)
406   }                                               421   }
407   fWasLimitedByGeometry = false;   // Clear on    422   fWasLimitedByGeometry = false;   // Clear on locating
408   fLastLocatedPosition  = position;               423   fLastLocatedPosition  = position; 
409 }                                                 424 }
410                                                   425 
411 // -------------------------------------------    426 // ----------------------------------------------------------------------
412                                                   427 
413 G4double G4MultiNavigator::ComputeSafety( cons    428 G4double G4MultiNavigator::ComputeSafety( const G4ThreeVector& position,
414                                           cons    429                                           const G4double       maxDistance,
415                                           cons    430                                           const G4bool         state)
416 {                                                 431 {
417     // Recompute safety for the relevant point    432     // Recompute safety for the relevant point
418                                                   433 
419     G4double minSafety = kInfinity, safety = k    434     G4double minSafety = kInfinity, safety = kInfinity;
420                                                   435   
421     std::vector<G4Navigator*>::iterator pNavig    436     std::vector<G4Navigator*>::iterator pNavigatorIter;
422     pNavigatorIter= pTransportManager-> GetAct    437     pNavigatorIter= pTransportManager-> GetActiveNavigatorsIterator();
423                                                   438 
424     for( auto num=0; num< fNoActiveNavigators; << 439     for( register int num=0; num< fNoActiveNavigators; ++pNavigatorIter,++num )
425     {                                             440     {
426        safety = (*pNavigatorIter)->ComputeSafe    441        safety = (*pNavigatorIter)->ComputeSafety( position, maxDistance, state);
427        if( safety < minSafety ) { minSafety =     442        if( safety < minSafety ) { minSafety = safety; } 
428     }                                             443     } 
429                                                   444 
430     fSafetyLocation = position;                   445     fSafetyLocation = position;
431     fMinSafety_atSafLocation = minSafety;         446     fMinSafety_atSafLocation = minSafety;
432                                                   447 
433 #ifdef G4DEBUG_NAVIGATION                         448 #ifdef G4DEBUG_NAVIGATION
434     if( fVerbose > 1 )                            449     if( fVerbose > 1 )
435     {                                             450     { 
436       G4cout << " G4MultiNavigator::ComputeSaf    451       G4cout << " G4MultiNavigator::ComputeSafety - returns: " 
437              << minSafety << ", at location: "    452              << minSafety << ", at location: " << position << G4endl;
438     }                                             453     }
439 #endif                                            454 #endif
440     return minSafety;                             455     return minSafety; 
441 }                                                 456 }
442                                                   457 
443 // -------------------------------------------    458 // -----------------------------------------------------------------------
444                                                   459 
445 G4TouchableHandle G4MultiNavigator::CreateTouc << 460 G4TouchableHistoryHandle 
                                                   >> 461 G4MultiNavigator::CreateTouchableHistoryHandle() const
446 {                                                 462 {
447   G4Exception( "G4MultiNavigator::CreateToucha    463   G4Exception( "G4MultiNavigator::CreateTouchableHistoryHandle()", 
448                "GeomNav0001", FatalException,     464                "GeomNav0001", FatalException,  
449                "Getting a touchable from G4Mul    465                "Getting a touchable from G4MultiNavigator is not defined."); 
450                                                   466 
451   G4TouchableHistory* touchHist;                  467   G4TouchableHistory* touchHist;
452   touchHist= fpNavigator[0] -> CreateTouchable    468   touchHist= fpNavigator[0] -> CreateTouchableHistory(); 
453                                                   469 
454   G4VPhysicalVolume* locatedVolume= fLocatedVo    470   G4VPhysicalVolume* locatedVolume= fLocatedVolume[0]; 
455   if( locatedVolume == nullptr )               << 471   if( locatedVolume == 0 )
456   {                                               472   {
457     // Workaround to ensure that the touchable    473     // Workaround to ensure that the touchable is fixed !! // TODO: fix
458     //                                            474     //
459     touchHist->UpdateYourself( locatedVolume,     475     touchHist->UpdateYourself( locatedVolume, touchHist->GetHistory() );
460   }                                               476   }
461                                                   477     
462   return {touchHist};                          << 478   return G4TouchableHistoryHandle(touchHist); 
463 }                                                 479 }
464                                                   480 
465 // -------------------------------------------    481 // -----------------------------------------------------------------------
466                                                   482 
467 void G4MultiNavigator::WhichLimited()             483 void G4MultiNavigator::WhichLimited()
468 {                                                 484 {
469   // Flag which processes limited the step        485   // Flag which processes limited the step
470                                                   486 
471   G4int last=-1;                                  487   G4int last=-1; 
472   const G4int IdTransport= 0;  // Id of Mass N    488   const G4int IdTransport= 0;  // Id of Mass Navigator !!
473   G4int noLimited=0;                              489   G4int noLimited=0; 
474   ELimited shared= kSharedOther;                  490   ELimited shared= kSharedOther; 
475                                                   491 
476 #ifdef G4DEBUG_NAVIGATION                         492 #ifdef G4DEBUG_NAVIGATION
477   if( fVerbose > 2 )                              493   if( fVerbose > 2 )
478   {                                               494   {
479     G4cout << " Entered G4MultiNavigator::Whic    495     G4cout << " Entered G4MultiNavigator::WhichLimited() " << G4endl;
480   }                                               496   }
481 #endif                                            497 #endif
482                                                   498 
483   // Assume that [IdTransport] is Mass / Trans    499   // Assume that [IdTransport] is Mass / Transport
484   //                                              500   // 
485   G4bool transportLimited = (fCurrentStepSize[    501   G4bool transportLimited = (fCurrentStepSize[IdTransport] == fMinStep)
486                          && ( fMinStep!= kInfi    502                          && ( fMinStep!= kInfinity); 
487   if( transportLimited )                          503   if( transportLimited )
488   {                                               504   { 
489      shared = kSharedTransport;                << 505      shared= kSharedTransport;
490   }                                               506   }
491                                                   507 
492   for ( auto num = 0; num < fNoActiveNavigator << 508   for ( register int num= 0; num < fNoActiveNavigators; num++ )
493   {                                               509   { 
494     G4bool limitedStep;                           510     G4bool limitedStep;
495                                                   511 
496     G4double step = fCurrentStepSize[num];     << 512     G4double step= fCurrentStepSize[num]; 
497                                                   513 
498     limitedStep = ( step == fMinStep ) && ( st    514     limitedStep = ( step == fMinStep ) && ( step != kInfinity); 
499                                                   515    
500     fLimitTruth[ num ] = limitedStep;             516     fLimitTruth[ num ] = limitedStep; 
501     if( limitedStep )                             517     if( limitedStep )
502     {                                             518     {
503       ++noLimited;                             << 519       noLimited++;  
504       fLimitedStep[num] = shared;                 520       fLimitedStep[num] = shared;
505       last= num;                                  521       last= num; 
506     }                                             522     }
507     else                                          523     else
508     {                                             524     {
509       fLimitedStep[num] = kDoNot;                 525       fLimitedStep[num] = kDoNot;
510     }                                             526     }
511   }                                               527   }
512   if( (last > -1) && (noLimited == 1 ) )          528   if( (last > -1) && (noLimited == 1 ) )
513   {                                               529   {
514     fLimitedStep[ last ] = kUnique;            << 530     fLimitedStep[ last ] = kUnique; 
515     fIdNavLimiting = last;                     << 
516   }                                               531   }
517                                                   532 
518   fNoLimitingStep = noLimited;                 << 533   fNoLimitingStep= noLimited;  
519                                                   534 
520   return;                                         535   return;
521 }                                                 536 }
522                                                   537 
523 // -------------------------------------------    538 // -----------------------------------------------------------------------
524                                                   539 
525 void                                              540 void
526 G4MultiNavigator::PrintLimited()                  541 G4MultiNavigator::PrintLimited()
527 {                                                 542 {
528   // Report results -- for checking               543   // Report results -- for checking   
529                                                   544 
530   static const G4String StrDoNot("DoNot"), Str << 545   static G4String StrDoNot("DoNot"), StrUnique("Unique"),
531                   StrUndefined("Undefined"),      546                   StrUndefined("Undefined"),
532                   StrSharedTransport("SharedTr    547                   StrSharedTransport("SharedTransport"),
533                   StrSharedOther("SharedOther"    548                   StrSharedOther("SharedOther");
534   G4cout << "### G4MultiNavigator::PrintLimite    549   G4cout << "### G4MultiNavigator::PrintLimited() reports: " << G4endl;
535   G4cout << "    Minimum step (true): " << fTr    550   G4cout << "    Minimum step (true): " << fTrueMinStep 
536          << ", reported min: " << fMinStep <<     551          << ", reported min: " << fMinStep << G4endl; 
537                                                   552 
538 #ifdef G4DEBUG_NAVIGATION                         553 #ifdef G4DEBUG_NAVIGATION
539   if(fVerbose>=2)                                 554   if(fVerbose>=2)
540   {                                               555   {
541     G4cout << std::setw(5) << " NavId"  << " "    556     G4cout << std::setw(5) << " NavId"  << " "
542            << std::setw(12) << " step-size " <    557            << std::setw(12) << " step-size " << " "
543            << std::setw(12) << " raw-size "  <    558            << std::setw(12) << " raw-size "  << " "
544            << std::setw(12) << " pre-safety "     559            << std::setw(12) << " pre-safety " << " " 
545            << std::setw(15) << " Limited / fla    560            << std::setw(15) << " Limited / flag"  << " "
546            << std::setw(15) << "  World "  <<     561            << std::setw(15) << "  World "  << " "
547            << G4endl;                             562            << G4endl;  
548   }                                               563   }
549 #endif                                            564 #endif
550                                                   565 
551   for ( auto num = 0; num < fNoActiveNavigator << 566   for ( register int num= 0; num < fNoActiveNavigators; num++ )
552   {                                               567   { 
553     G4double rawStep = fCurrentStepSize[num];     568     G4double rawStep = fCurrentStepSize[num]; 
554     G4double stepLen = fCurrentStepSize[num];     569     G4double stepLen = fCurrentStepSize[num]; 
555     if( stepLen > fTrueMinStep )                  570     if( stepLen > fTrueMinStep )
556     {                                             571     { 
557       stepLen = fTrueMinStep;     // did not l    572       stepLen = fTrueMinStep;     // did not limit (went as far as asked)
558     }                                             573     }
559     G4long oldPrec = G4cout.precision(9);      << 574     G4int oldPrec= G4cout.precision(9); 
560                                                   575 
561     G4cout << std::setw(5) << num  << " "         576     G4cout << std::setw(5) << num  << " "
562            << std::setw(12) << stepLen << " "     577            << std::setw(12) << stepLen << " "
563            << std::setw(12) << rawStep << " "     578            << std::setw(12) << rawStep << " "
564            << std::setw(12) << fNewSafety[num]    579            << std::setw(12) << fNewSafety[num] << " "
565            << std::setw(5) << (fLimitTruth[num    580            << std::setw(5) << (fLimitTruth[num] ? "YES" : " NO") << " ";
566     G4String limitedStr;                          581     G4String limitedStr;
567     switch ( fLimitedStep[num] )                  582     switch ( fLimitedStep[num] )
568     {                                             583     {
569       case kDoNot          : limitedStr = StrD << 584       case kDoNot          : limitedStr= StrDoNot; break;
570       case kUnique         : limitedStr = StrU    585       case kUnique         : limitedStr = StrUnique; break; 
571       case kSharedTransport: limitedStr = StrS << 586       case kSharedTransport: limitedStr= StrSharedTransport; break; 
572       case kSharedOther    : limitedStr = StrS    587       case kSharedOther    : limitedStr = StrSharedOther; break;
573       default              : limitedStr = StrU    588       default              : limitedStr = StrUndefined; break;
574     }                                             589     }
575     G4cout << " " << std::setw(15) << limitedS    590     G4cout << " " << std::setw(15) << limitedStr << " ";  
576     G4cout.precision(oldPrec);                    591     G4cout.precision(oldPrec); 
577                                                   592 
578     G4Navigator *pNav = fpNavigator[ num ];    << 593     G4Navigator *pNav= fpNavigator[ num ]; 
579     G4String  WorldName( "Not-Set" );             594     G4String  WorldName( "Not-Set" ); 
580     if (pNav != nullptr)                       << 595     if (pNav)
581     {                                             596     {
582        G4VPhysicalVolume *pWorld = pNav->GetWo << 597        G4VPhysicalVolume *pWorld= pNav->GetWorldVolume(); 
583        if( pWorld != nullptr )                 << 598        if( pWorld )
584        {                                          599        {
585            WorldName = pWorld->GetName();         600            WorldName = pWorld->GetName(); 
586        }                                          601        }
587     }                                             602     }
588     G4cout << " " << WorldName ;                  603     G4cout << " " << WorldName ; 
589     G4cout << G4endl;                             604     G4cout << G4endl;
590   }                                               605   }
591 }                                                 606 }
592                                                   607  
593                                                   608 
594 // -------------------------------------------    609 // -----------------------------------------------------------------------
595                                                   610 
596 void G4MultiNavigator::ResetState()               611 void G4MultiNavigator::ResetState()
597 {                                                 612 {
598    fWasLimitedByGeometry = false;              << 613    fWasLimitedByGeometry= false; 
599                                                   614 
600    G4Exception("G4MultiNavigator::ResetState()    615    G4Exception("G4MultiNavigator::ResetState()", "GeomNav0001",  
601                FatalException,                    616                FatalException,  
602                "Cannot reset state for navigat    617                "Cannot reset state for navigators of G4MultiNavigator.");
603 /*                                             << 618    
604    std::vector<G4Navigator*>::iterator pNaviga    619    std::vector<G4Navigator*>::iterator pNavigatorIter;
605    pNavigatorIter = pTransportManager->GetActi << 620    pNavigatorIter= pTransportManager-> GetActiveNavigatorsIterator();
606    for( auto num = 0; num< fNoActiveNavigators << 621    for( register int num=0; num< fNoActiveNavigators; ++pNavigatorIter,++num )
607    {                                              622    {
608        //  (*pNavigatorIter)->ResetState();  /    623        //  (*pNavigatorIter)->ResetState();  // KEEP THIS comment !!!
609    }                                           << 624    } 
610 */                                             << 
611 }                                                 625 }
612                                                   626 
613 // -------------------------------------------    627 // -----------------------------------------------------------------------
614                                                   628 
615 void G4MultiNavigator::SetupHierarchy()           629 void G4MultiNavigator::SetupHierarchy()
616 {                                                 630 {
617   G4Exception( "G4MultiNavigator::SetupHierarc    631   G4Exception( "G4MultiNavigator::SetupHierarchy()", 
618                "GeomNav0001", FatalException,     632                "GeomNav0001", FatalException,  
619                "Cannot setup hierarchy for nav    633                "Cannot setup hierarchy for navigators of G4MultiNavigator."); 
620 }                                                 634 }
621                                                   635 
622 // -------------------------------------------    636 // -----------------------------------------------------------------------
623                                                   637 
624 void G4MultiNavigator::CheckMassWorld()           638 void G4MultiNavigator::CheckMassWorld()
625 {                                                 639 {
626    G4VPhysicalVolume* navTrackWorld =          << 640    G4VPhysicalVolume* navTrackWorld=
627      pTransportManager->GetNavigatorForTrackin    641      pTransportManager->GetNavigatorForTracking()->GetWorldVolume();
628                                                   642 
629    if( navTrackWorld != fLastMassWorld )          643    if( navTrackWorld != fLastMassWorld )
630    {                                              644    { 
631       G4Exception( "G4MultiNavigator::CheckMas    645       G4Exception( "G4MultiNavigator::CheckMassWorld()",
632                    "GeomNav0003", FatalExcepti    646                    "GeomNav0003", FatalException, 
633                    "Mass world pointer has bee    647                    "Mass world pointer has been changed." ); 
634    }                                              648    }
635 }                                                 649 }
636                                                   650 
637 // -------------------------------------------    651 // -----------------------------------------------------------------------
638                                                   652 
639 G4VPhysicalVolume*                                653 G4VPhysicalVolume*
640 G4MultiNavigator::ResetHierarchyAndLocate(cons << 654 G4MultiNavigator::ResetHierarchyAndLocate(const G4ThreeVector &point,
641                                           cons << 655                                           const G4ThreeVector &direction,
642                                           cons << 656                                           const G4TouchableHistory &MassHistory)
643 {                                                 657 {
644    // Reset geometry for all -- and use the to    658    // Reset geometry for all -- and use the touchable for the mass history
645                                                   659 
646    G4VPhysicalVolume* massVolume = nullptr;    << 660    G4VPhysicalVolume* massVolume=0; 
647    G4Navigator* pMassNavigator = fpNavigator[0 << 661    G4Navigator* pMassNavigator= fpNavigator[0]; 
648                                                   662 
649    if( pMassNavigator != nullptr )             << 663    if( pMassNavigator )
650    {                                              664    {
651       massVolume= pMassNavigator->ResetHierarc    665       massVolume= pMassNavigator->ResetHierarchyAndLocate( point, direction,
652                                                   666                                                            MassHistory); 
653    }                                              667    }
654    else                                           668    else
655    {                                              669    {
656       G4Exception("G4MultiNavigator::ResetHier    670       G4Exception("G4MultiNavigator::ResetHierarchyAndLocate()",
657                   "GeomNav0002", FatalExceptio    671                   "GeomNav0002", FatalException,
658                   "Cannot reset hierarchy befo    672                   "Cannot reset hierarchy before navigators are initialised.");
659    }                                              673    }
660                                                   674 
661    auto pNavIter= pTransportManager->GetActive << 675    std::vector<G4Navigator*>::iterator pNavIter= 
                                                   >> 676        pTransportManager->GetActiveNavigatorsIterator(); 
662                                                   677 
663    for ( auto num = 0; num < fNoActiveNavigato << 678    for ( register int num=0; num< fNoActiveNavigators ; ++pNavIter,++num )
664    {                                              679    {
665       G4bool relativeSearch, ignoreDirection;     680       G4bool relativeSearch, ignoreDirection; 
666                                                   681 
667       (*pNavIter)-> LocateGlobalPointAndSetup(    682       (*pNavIter)-> LocateGlobalPointAndSetup( point, 
668                                                   683                                                &direction, 
669                                                   684                                                relativeSearch=false,
670                                                   685                                                ignoreDirection=false);
671    }                                              686    }
672    return massVolume;                             687    return massVolume; 
673 }                                                 688 }
674                                                   689 
675 // ------------------------------------------- << 690 // -----------------  ooooooOOOOOOOOOOOOOOOoooooo -------------------------------------
676                                                   691 
677 G4ThreeVector                                     692 G4ThreeVector 
678 G4MultiNavigator::GetGlobalExitNormal(const G4 << 693 G4MultiNavigator::GetGlobalExitNormal(const G4ThreeVector &argPoint,
679                                       G4bool*  << 694                                                     G4bool* argpObtained) // const
680 {                                                 695 {
681   G4ThreeVector normalGlobalCrd(0.0, 0.0, 0.0)    696   G4ThreeVector normalGlobalCrd(0.0, 0.0, 0.0); 
682   G4bool isObtained = false;                   << 697   G4bool isObtained= false; 
683   // These default values will be used if fNoL    698   // These default values will be used if fNoLimitingStep== 0
684   G4int firstNavigatorId = -1;                 << 699   G4int  firstNavigatorId= -1;
685   G4bool oneObtained = false;                  << 700   G4bool        oneObtained= false;
686                                                   701     
687   if( fNoLimitingStep == 1 )                   << 702   if( fNoLimitingStep==1 )
688   {                                               703   { 
689     // Only message the Navigator which limite    704     // Only message the Navigator which limited the step!
690     normalGlobalCrd = fpNavigator[ fIdNavLimit << 705     normalGlobalCrd= fpNavigator[ fIdNavLimiting ]->GetGlobalExitNormal( argPoint, &isObtained); 
691                     ->GetGlobalExitNormal( arg << 706     *argpObtained= isObtained; 
692     *argpObtained = isObtained;                << 
693   }                                               707   }
694   else                                            708   else 
695   {                                               709   {
696     if( fNoLimitingStep > 1 )                     710     if( fNoLimitingStep > 1 )
697     {                                             711     { 
698       auto pNavIter= pTransportManager->GetAct << 712       std::vector<G4Navigator*>::iterator pNavIter= 
                                                   >> 713         pTransportManager->GetActiveNavigatorsIterator(); 
699                                                   714 
700       for ( auto num = 0; num < fNoActiveNavig << 715       for ( register int num=0; num< fNoActiveNavigators ; ++pNavIter,++num )
701       {                                           716       {
702         G4ThreeVector oneNormal;                  717         G4ThreeVector oneNormal;
703         if( fLimitTruth[ num ] )  // Did this  << 718         if( fLimitedStep[ num ] ) 
704         {                                         719         { 
705           G4ThreeVector newNormal =            << 720           G4ThreeVector newNormal= (*pNavIter)-> GetGlobalExitNormal( argPoint, &oneObtained );
706             (*pNavIter)->GetGlobalExitNormal(  << 
707           if( oneObtained )                       721           if( oneObtained )
708           {                                       722           {
709             // Keep first one - only if it is     723             // Keep first one - only if it is valid (ie not null)
710             if( !isObtained && (newNormal.mag2    724             if( !isObtained && (newNormal.mag2() != 0.0) )
711             {                                     725             {
712               normalGlobalCrd = newNormal;     << 726               normalGlobalCrd= newNormal; 
713               isObtained = oneObtained;        << 727               isObtained =     oneObtained;
714               firstNavigatorId = num;          << 728               firstNavigatorId= num; 
715             }                                  << 729             }else{
716             else                               << 
717             {                                  << 
718               // Check for clash                  730               // Check for clash
719               G4double dotNewPrevious = newNor << 731               G4double dotNewPrevious= newNormal.dot( normalGlobalCrd );
720               G4double productMagSq = normalGl << 732               G4double productMagSq= normalGlobalCrd.mag2() * newNormal.mag2(); 
721               if( productMagSq > 0.0 )            733               if( productMagSq > 0.0 ) 
722               {                                   734               {
723                 G4double productMag = std::sqr << 735                 G4double productMag= std::sqrt( productMagSq ); 
724                 dotNewPrevious /= productMag;     736                 dotNewPrevious /= productMag; // Normalise
725                 if( dotNewPrevious < (1 - perT    737                 if( dotNewPrevious < (1 - perThousand) ) 
726                 {                                 738                 {
727                   *argpObtained = false;       << 739                   if( dotNewPrevious <= 0.0 )
728                                                << 
729                   if( fVerbose > 2 )  //  dotN << 
730                   {                               740                   {
731                     std::ostringstream message    741                     std::ostringstream message;
732                     message << "Clash of Norma << 742                     message << "Clash of Normal from different Navigators!" << G4endl
733                             << G4endl          << 743                             << "        Previous Navigator Id = " << firstNavigatorId << G4endl
734                             << "        Previo << 744                             << "        Current  Navigator Id = " << num << G4endl;
735                             << firstNavigatorI << 745                     message << "  Dot product of 2 normals = " << dotNewPrevious << G4endl;
736                             << "        Curren << 746                     message << "        Normal (previous) = " << normalGlobalCrd << G4endl;
737                             << num << G4endl;  << 
738                     message << "  Dot product  << 
739                             << dotNewPrevious  << 
740                     message << "        Normal << 
741                             << normalGlobalCrd << 
742                     message << "        Normal    747                     message << "        Normal (current)  = " << newNormal       << G4endl;
743                     G4Exception("G4MultiNaviga << 748                     G4Exception("G4MultiNavigator::GetGlobalExitNormal()", "GeomNav0002",
744                                 "GeomNav0002", << 749                                 FatalException, message); 
745                   }                               750                   }
746                 }                                 751                 }
747                 else                              752                 else
748                 {                                 753                 {
749                   // Close agreement - Do not     754                   // Close agreement - Do not change 
750                 }                                 755                 }
751               }                                   756               }
752             }                                     757             }
753           }                                       758           }
754         }                                         759         }
755       } // end for over the Navigators            760       } // end for over the Navigators
756                                                   761 
757       // Report if no Normal was obtained         762       // Report if no Normal was obtained
758       if( !oneObtained )                          763       if( !oneObtained ) 
759       {                                           764       {
760         std::ostringstream message;               765         std::ostringstream message;
761         message << "No Normal obtained despite    766         message << "No Normal obtained despite having " << fNoLimitingStep
762                 << " candidate Navigators limi    767                 << " candidate Navigators limiting the step!" << G4endl;
763         G4Exception("G4MultiNavigator::GetGlob    768         G4Exception("G4MultiNavigator::GetGlobalExitNormal()", "GeomNav0002",
764                     JustWarning, message);        769                     JustWarning, message); 
765       }                                           770       }
766                                                   771 
767     } // end if ( fNoLimiting > 1 )               772     } // end if ( fNoLimiting > 1 ) 
768   } // end else                                   773   } // end else
769                                                   774 
770   *argpObtained = isObtained;                  << 775   *argpObtained= isObtained;
771   return normalGlobalCrd;                         776   return normalGlobalCrd;
772 }                                                 777 }
773                                                   778 
774 // ------------------------------------------- << 779 // -----------------  ooooooOOOOOOOOOOOOOOOoooooo -------------------------------------
775                                                   780 
776 G4ThreeVector                                     781 G4ThreeVector 
777 G4MultiNavigator::GetLocalExitNormal(G4bool* a    782 G4MultiNavigator::GetLocalExitNormal(G4bool* argpObtained)
778 {                                                 783 {
779   // If it is the mass navigator, then expect     784   // If it is the mass navigator, then expect
780   G4ThreeVector normalGlobalCrd(0.0, 0.0, 0.0)    785   G4ThreeVector normalGlobalCrd(0.0, 0.0, 0.0); 
781   G4bool isObtained = false;                   << 786   G4bool isObtained= false; 
782   // These default values will be used if fNoL    787   // These default values will be used if fNoLimitingStep== 0
783                                                   788 
784   if( fNoLimitingStep == 1 )                   << 789   if( fNoLimitingStep==1 )
785   {                                               790   { 
786     // Only message the Navigator which limite    791     // Only message the Navigator which limited the step!
787     normalGlobalCrd = fpNavigator[ fIdNavLimit << 792     normalGlobalCrd= fpNavigator[ fIdNavLimiting ]->GetLocalExitNormal( &isObtained); 
788                     ->GetLocalExitNormal( &isO << 793     *argpObtained= isObtained;
789     *argpObtained = isObtained;                << 794 
790                                                << 795     G4int static numberWarnings= 0;
791     static G4ThreadLocal G4int numberWarnings  << 796     G4int noWarningsStart= 10, noModuloWarnings=100; 
792     G4int noWarningsStart = 10, noModuloWarnin << 797     numberWarnings++; 
793     ++numberWarnings;                          << 798     if( (numberWarnings < noWarningsStart ) || (numberWarnings%noModuloWarnings==0) ) 
794     if( (numberWarnings < noWarningsStart )    << 
795      || (numberWarnings%noModuloWarnings == 0) << 
796     {                                             799     {
797       std::ostringstream message;              << 800     std::ostringstream message;
798       message << "Cannot obtain normal in loca << 801     message << "Cannot obtain normal in local coordinates of two or more coordinate systems." << G4endl;
799               << "coordinate systems." << G4en << 802     G4Exception("G4MultiNavigator::GetGlobalExitNormal()", "GeomNav0002",
800       G4Exception("G4MultiNavigator::GetGlobal << 803                 JustWarning, message);       
801                   JustWarning, message);       << 
802     }                                             804     }
803   }                                               805   }
804   else                                            806   else
805   {                                               807   {
806     if( fNoLimitingStep > 1 )                     808     if( fNoLimitingStep > 1 ) 
807     {                                             809     {
808       std::ostringstream message;              << 810         // Does not make sense - cannot obtain *local* normal in several coordinate systems
809       message << "Cannot obtain normal in loca << 811         std::ostringstream message;
810               << "coordinate systems." << G4en << 812         message << "Cannot obtain normal in local coordinates of two or more coordinate systems." << G4endl;
811       G4Exception("G4MultiNavigator::GetGlobal << 813         G4Exception("G4MultiNavigator::GetGlobalExitNormal()", "GeomNav0002",
812                   FatalException, message);    << 814                     FatalException, message);       
813     }                                             815     }
814   }                                               816   }
815                                                   817     
816   *argpObtained = isObtained;                  << 818   *argpObtained= isObtained;
817   return normalGlobalCrd;                         819   return normalGlobalCrd; 
818 }                                                 820 }
819                                                   821 
820 // ------------------------------------------- << 822 
                                                   >> 823 // -----------------  ooooooOOOOOOOOOOOOOOOoooooo -------------------------------------
821                                                   824 
822 G4ThreeVector                                     825 G4ThreeVector 
823 G4MultiNavigator::GetLocalExitNormalAndCheck(c << 826 G4MultiNavigator::GetLocalExitNormalAndCheck(const G4ThreeVector &, // point,
824                                                   827                                                    G4bool* obtained)
825 {                                                 828 {
826   return G4MultiNavigator::GetLocalExitNormal( << 829   return G4MultiNavigator::GetLocalExitNormal( obtained);
827 }                                                 830 }
828                                                   831