#include <G4ITNavigator1.hh>

Collaboration diagram for G4ITNavigator1:

Public Member Functions
	G4ITNavigator1 ()

virtual	~G4ITNavigator1 ()

G4ITNavigatorState_Lock1 *	GetNavigatorState ()

void	SetNavigatorState (G4ITNavigatorState_Lock1 *)

void	NewNavigatorState ()

virtual G4double	ComputeStep (const G4ThreeVector &pGlobalPoint, const G4ThreeVector &pDirection, const G4double pCurrentProposedStepLength, G4double &pNewSafety)

G4double	CheckNextStep (const G4ThreeVector &pGlobalPoint, const G4ThreeVector &pDirection, const G4double pCurrentProposedStepLength, G4double &pNewSafety)

virtual G4VPhysicalVolume *	ResetHierarchyAndLocate (const G4ThreeVector &point, const G4ThreeVector &direction, const G4TouchableHistory &h)

virtual G4VPhysicalVolume *	LocateGlobalPointAndSetup (const G4ThreeVector &point, const G4ThreeVector *direction=0, const G4bool pRelativeSearch=true, const G4bool ignoreDirection=true)

virtual void	LocateGlobalPointWithinVolume (const G4ThreeVector &position)

void	LocateGlobalPointAndUpdateTouchableHandle (const G4ThreeVector &position, const G4ThreeVector &direction, G4TouchableHandle &oldTouchableToUpdate, const G4bool RelativeSearch=true)

void	LocateGlobalPointAndUpdateTouchable (const G4ThreeVector &position, const G4ThreeVector &direction, G4VTouchable *touchableToUpdate, const G4bool RelativeSearch=true)

void	LocateGlobalPointAndUpdateTouchable (const G4ThreeVector &position, G4VTouchable *touchableToUpdate, const G4bool RelativeSearch=true)

void	SetGeometricallyLimitedStep ()

virtual G4double	ComputeSafety (const G4ThreeVector &globalpoint, const G4double pProposedMaxLength=DBL_MAX, const G4bool keepState=true)

G4VPhysicalVolume *	GetWorldVolume () const

void	SetWorldVolume (G4VPhysicalVolume *pWorld)

G4GRSVolume *	CreateGRSVolume () const

G4GRSSolid *	CreateGRSSolid () const

G4TouchableHistory *	CreateTouchableHistory () const

G4TouchableHistory *	CreateTouchableHistory (const G4NavigationHistory *) const

virtual G4TouchableHistoryHandle	CreateTouchableHistoryHandle () const

virtual G4ThreeVector	GetLocalExitNormal (G4bool *valid)

virtual G4ThreeVector	GetLocalExitNormalAndCheck (const G4ThreeVector &point, G4bool *valid)

virtual G4ThreeVector	GetGlobalExitNormal (const G4ThreeVector &point, G4bool *valid)

G4int	GetVerboseLevel () const

void	SetVerboseLevel (G4int level)

G4bool	IsActive () const

void	Activate (G4bool flag)

G4bool	EnteredDaughterVolume () const

G4bool	ExitedMotherVolume () const

void	CheckMode (G4bool mode)

G4bool	IsCheckModeActive () const

void	SetPushVerbosity (G4bool mode)

void	PrintState () const

const G4AffineTransform &	GetGlobalToLocalTransform () const

const G4AffineTransform	GetLocalToGlobalTransform () const

G4AffineTransform	GetMotherToDaughterTransform (G4VPhysicalVolume *dVolume, G4int dReplicaNo, EVolume dVolumeType)

void	ResetStackAndState ()

G4int	SeverityOfZeroStepping (G4int *noZeroSteps) const

void	SetSavedState ()

void	RestoreSavedState ()

G4ThreeVector	GetCurrentLocalCoordinate () const

G4ThreeVector	NetTranslation () const

G4RotationMatrix	NetRotation () const

void	EnableBestSafety (G4bool value=false)

virtual void	ResetState ()

Static Public Attributes
static const G4int	fMaxNav = 8

Protected Member Functions
G4ThreeVector	ComputeLocalPoint (const G4ThreeVector &rGlobPoint) const

G4ThreeVector	ComputeLocalAxis (const G4ThreeVector &pVec) const

EVolume	VolumeType (const G4VPhysicalVolume *pVol) const

EVolume	CharacteriseDaughters (const G4LogicalVolume *pLog) const

G4int	GetDaughtersRegularStructureId (const G4LogicalVolume *pLog) const

virtual void	SetupHierarchy ()

Protected Attributes
G4double	kCarTolerance

G4NavigationHistory	fHistory

G4bool	fEnteredDaughter

G4bool	fExitedMother

G4bool	fWasLimitedByGeometry

G4ThreeVector	fStepEndPoint

G4ThreeVector	fLastStepEndPointLocal

G4int	fVerbose

Friends
std::ostream &	operator<< (std::ostream &os, const G4ITNavigator1 &n)

Detailed Description

Definition at line 91 of file G4ITNavigator1.hh.

Constructor & Destructor Documentation

G4ITNavigator1::G4ITNavigator1 ( )

Definition at line 60 of file G4ITNavigator1.cc.

   : fWasLimitedByGeometry(false), fVerbose(0),
     fTopPhysical(0), fCheck(false), fPushed(false), fWarnPush(true)
 {
   fActive= false; 
   fLastTriedStepComputation= false;
 
   ResetStackAndState();
     // Initialises also all 
     // - exit / entry flags
     // - flags & variables for exit normals
     // - zero step counters
     // - blocked volume 
 
   fActionThreshold_NoZeroSteps  = 10; 
   fAbandonThreshold_NoZeroSteps = 25; 
 
   kCarTolerance = G4GeometryTolerance::GetInstance()->GetSurfaceTolerance();
   fregularNav.SetNormalNavigation( &fnormalNav );
 
   fStepEndPoint = G4ThreeVector( kInfinity, kInfinity, kInfinity ); 
   fLastStepEndPointLocal = G4ThreeVector( kInfinity, kInfinity, kInfinity ); 
 
   fpVoxelSafety= new G4VoxelSafety();
   fpSaveState = 0;
 
   // this->SetVerboseLevel(3);
   // this->CheckMode(true);
 }

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G4ITNavigator1::~G4ITNavigator1 ( )

virtual

Definition at line 124 of file G4ITNavigator1.cc.

125 { delete fpVoxelSafety; }

Member Function Documentation

void G4ITNavigator1::Activate ( G4bool flag )

inline

EVolume G4ITNavigator1::CharacteriseDaughters ( const G4LogicalVolume * pLog ) const

inlineprotected

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void G4ITNavigator1::CheckMode ( G4bool mode )

inline

G4double G4ITNavigator1::CheckNextStep	(	const G4ThreeVector &	pGlobalPoint,
		const G4ThreeVector &	pDirection,
		const G4double	pCurrentProposedStepLength,
		G4double &	pNewSafety
	)

Definition at line 1230 of file G4ITNavigator1.cc.

 {
   G4double step;
 
   // Save the state, for this parasitic call
   //
   SetSavedState();
 
   step = ComputeStep ( pGlobalpoint, 
                        pDirection,
                        pCurrentProposedStepLength, 
                        pNewSafety ); 
 
   // If a parasitic call, then attempt to restore the key parts of the state
   //
   RestoreSavedState(); 
 
   return step; 
 }

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G4ThreeVector G4ITNavigator1::ComputeLocalAxis ( const G4ThreeVector & pVec ) const

inlineprotected

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G4ThreeVector G4ITNavigator1::ComputeLocalPoint ( const G4ThreeVector & rGlobPoint ) const

inlineprotected

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G4double G4ITNavigator1::ComputeSafety	(	const G4ThreeVector &	globalpoint,
		const G4double	pProposedMaxLength = `DBL_MAX`,
		const G4bool	keepState = `true`
	)

virtual

Definition at line 1692 of file G4ITNavigator1.cc.

 {
   G4double newSafety = 0.0;
 
 #ifdef G4DEBUG_NAVIGATION
   G4int oldcoutPrec = G4cout.precision(8);
   if( fVerbose > 0 )
   {
     G4cout << "*** G4ITNavigator1::ComputeSafety: ***" << G4endl
            << "    Called at point: " << pGlobalpoint << G4endl;
 
     G4VPhysicalVolume  *motherPhysical = fHistory.GetTopVolume();
     G4cout << "    Volume = " << motherPhysical->GetName() 
            << " - Maximum length = " << pMaxLength << G4endl; 
     if( fVerbose >= 4 )
     {
        G4cout << "    ----- Upon entering Compute Safety:" << G4endl;
        PrintState();
     }
   }
 #endif
 
   if (keepState)  { SetSavedState(); }
 
   G4double distEndpointSq = (pGlobalpoint-fStepEndPoint).mag2(); 
   G4bool   stayedOnEndpoint  = distEndpointSq < kCarTolerance*kCarTolerance; 
   G4bool   endpointOnSurface = fEnteredDaughter || fExitedMother;
 
   if( !(endpointOnSurface && stayedOnEndpoint) )
   {
     // Pseudo-relocate to this point (updates voxel information only)
     //
     LocateGlobalPointWithinVolume( pGlobalpoint ); 
       // --->> DANGER: Side effects on sub-navigator voxel information <<---
       //       Could be replaced again by 'granular' calls to sub-navigator
       //       locates (similar side-effects, but faster.  
       //       Solutions:
       //        1) Re-locate (to where?)
       //        2) Insure that the methods using (G4ComputeStep?)
       //           does a relocation (if information is disturbed only ?)
 
 #ifdef G4DEBUG_NAVIGATION
     if( fVerbose >= 2 )
     {
       G4cout << "  G4ITNavigator1::ComputeSafety() relocates-in-volume to point: "
              << pGlobalpoint << G4endl;
     }
 #endif 
     G4VPhysicalVolume *motherPhysical = fHistory.GetTopVolume();
     G4LogicalVolume *motherLogical = motherPhysical->GetLogicalVolume();
     G4SmartVoxelHeader* pVoxelHeader = motherLogical->GetVoxelHeader();
     G4ThreeVector localPoint = ComputeLocalPoint(pGlobalpoint);
 
     if ( fHistory.GetTopVolumeType()!=kReplica )
     {
       switch(CharacteriseDaughters(motherLogical))
       {
         case kNormal:
           if ( pVoxelHeader )
           {
 #ifdef G4NEW_SAFETY
             G4double safetyTwo = fpVoxelSafety->ComputeSafety(localPoint,
                                            *motherPhysical, pMaxLength);
             newSafety= safetyTwo;   // Faster and best available
 #else
             G4double safetyOldVoxel;
             safetyOldVoxel =
               fvoxelNav.ComputeSafety(localPoint,fHistory,pMaxLength);
             newSafety= safetyOldVoxel;
 #endif
           }
           else
           {
             newSafety=fnormalNav.ComputeSafety(localPoint,fHistory,pMaxLength);
           }
           break;
         case kParameterised:
           if( GetDaughtersRegularStructureId(motherLogical) != 1 )
           {
             newSafety=fparamNav.ComputeSafety(localPoint,fHistory,pMaxLength);
           }
           else  // Regular structure
           {
             newSafety=fregularNav.ComputeSafety(localPoint,fHistory,pMaxLength);
           }
           break;
         case kReplica:
           G4Exception("G4ITNavigator1::ComputeSafety()", "GeomNav0001",
                       FatalException, "Not applicable for replicated volumes.");
           break;
       }
     }
     else
     {
       newSafety = freplicaNav.ComputeSafety(pGlobalpoint, localPoint,
                                             fHistory, pMaxLength);
     }
   }
   else // if( endpointOnSurface && stayedOnEndpoint )
   {
 #ifdef G4DEBUG_NAVIGATION
     if( fVerbose >= 2 )
     {
       G4cout << "    G4ITNavigator1::ComputeSafety() finds that point - "
              << pGlobalpoint << " - is on surface " << G4endl; 
       if( fEnteredDaughter ) { G4cout << "   entered new daughter volume"; }
       if( fExitedMother )    { G4cout << "   and exited previous volume."; }
       G4cout << G4endl;
       G4cout << " EndPoint was = " << fStepEndPoint << G4endl;
     } 
 #endif
     newSafety = 0.0; 
   }
 
   // Remember last safety origin & value
   //
   fPreviousSftOrigin = pGlobalpoint;
   fPreviousSafety = newSafety; 
 
   if (keepState)  { RestoreSavedState(); }
 
 #ifdef G4DEBUG_NAVIGATION
   if( fVerbose > 1 )
   {
     G4cout << "   ---- Exiting ComputeSafety  " << G4endl;
     if( fVerbose > 2 )  { PrintState(); }
     G4cout << "    Returned value of Safety = " << newSafety << G4endl;
   }
   G4cout.precision(oldcoutPrec);
 #endif
 
   return newSafety;
 }

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G4double G4ITNavigator1::ComputeStep	(	const G4ThreeVector &	pGlobalPoint,
		const G4ThreeVector &	pDirection,
		const G4double	pCurrentProposedStepLength,
		G4double &	pNewSafety
	)

virtual

Definition at line 787 of file G4ITNavigator1.cc.

 {
   G4ThreeVector localDirection = ComputeLocalAxis(pDirection);
   G4double Step = kInfinity;
   G4VPhysicalVolume  *motherPhysical = fHistory.GetTopVolume();
   G4LogicalVolume *motherLogical = motherPhysical->GetLogicalVolume();
 
   // All state relating to exiting normals must be reset
   //
   fExitNormalGlobalFrame= G4ThreeVector( 0., 0., 0.);
     // Reset value - to erase its memory
   fChangedGrandMotherRefFrame= false;
     // Reset - used for local exit normal
   fGrandMotherExitNormal= G4ThreeVector( 0., 0., 0.); 
   fCalculatedExitNormal  = false;
     // Reset for new step
 
   static G4ThreadLocal G4int sNavCScalls=0;
   sNavCScalls++;
 
   fLastTriedStepComputation= true; 
 
 #ifdef G4VERBOSE
   if( fVerbose > 0 )
   {
     G4cout << "*** G4ITNavigator1::ComputeStep: ***" << G4endl;
     G4cout << "    Volume = " << motherPhysical->GetName() 
            << " - Proposed step length = " << pCurrentProposedStepLength
            << G4endl; 
 #ifdef G4DEBUG_NAVIGATION
     if( fVerbose >= 2 )
     {
       G4cout << "  Called with the arguments: " << G4endl
              << "  Globalpoint = " << std::setw(25) << pGlobalpoint << G4endl
              << "  Direction   = " << std::setw(25) << pDirection << G4endl;
       if( fVerbose >= 4 )
       {
         G4cout << "  ---- Upon entering : State" << G4endl;
         PrintState();
       }
     }
 #endif
   }
 #endif
 
   G4ThreeVector newLocalPoint = ComputeLocalPoint(pGlobalpoint);
   if( newLocalPoint != fLastLocatedPointLocal )
   {
     // Check whether the relocation is within safety
     //
     G4ThreeVector oldLocalPoint = fLastLocatedPointLocal;
     G4double moveLenSq = (newLocalPoint-oldLocalPoint).mag2();
 
     if ( moveLenSq >= kCarTolerance*kCarTolerance )
     {
 #ifdef G4VERBOSE
       ComputeStepLog(pGlobalpoint, moveLenSq);
 #endif
       // Relocate the point within the same volume
       //
       LocateGlobalPointWithinVolume( pGlobalpoint );
       fLastTriedStepComputation= true;     // Ensure that this is set again !!
     }
   }
   if ( fHistory.GetTopVolumeType()!=kReplica )
   {
     switch( CharacteriseDaughters(motherLogical) )
     {
       case kNormal:
         if ( motherLogical->GetVoxelHeader() )
         {
           Step = fvoxelNav.ComputeStep(fLastLocatedPointLocal,
                                        localDirection,
                                        pCurrentProposedStepLength,
                                        pNewSafety,
                                        fHistory,
                                        fValidExitNormal,
                                        fExitNormal,
                                        fExiting,
                                        fEntering,
                                        &fBlockedPhysicalVolume,
                                        fBlockedReplicaNo);
       
         }
         else
         {
           if( motherPhysical->GetRegularStructureId() == 0 )
           {
             Step = fnormalNav.ComputeStep(fLastLocatedPointLocal,
                                           localDirection,
                                           pCurrentProposedStepLength,
                                           pNewSafety,
                                           fHistory,
                                           fValidExitNormal,
                                           fExitNormal,
                                           fExiting,
                                           fEntering,
                                           &fBlockedPhysicalVolume,
                                           fBlockedReplicaNo);
           }
           else  // Regular (non-voxelised) structure
           {
             LocateGlobalPointAndSetup( pGlobalpoint, &pDirection, true, true );
             fLastTriedStepComputation= true; // Ensure that this is set again !!
             //
             // if physical process limits the step, the voxel will not be the
             // one given by ComputeStepSkippingEqualMaterials() and the local
             // point will be wrongly calculated.
 
             // There is a problem: when msc limits the step and the point is
             // assigned wrongly to phantom in previous step (while it is out
             // of the container volume). Then LocateGlobalPointAndSetup() has
             // reset the history topvolume to world.
             //
             if(fHistory.GetTopVolume()->GetRegularStructureId() == 0 )
             { 
               G4Exception("G4ITNavigator1::ComputeStep()",
                           "GeomNav1001", JustWarning,
                 "Point is relocated in voxels, while it should be outside!");
               Step = fnormalNav.ComputeStep(fLastLocatedPointLocal,
                                             localDirection,
                                             pCurrentProposedStepLength,
                                             pNewSafety,
                                             fHistory,
                                             fValidExitNormal,
                                             fExitNormal,
                                             fExiting,
                                             fEntering,
                                             &fBlockedPhysicalVolume,
                                             fBlockedReplicaNo);
             }
             else
             {
               Step = fregularNav.
                    ComputeStepSkippingEqualMaterials(fLastLocatedPointLocal,
                                                      localDirection,
                                                      pCurrentProposedStepLength,
                                                      pNewSafety,
                                                      fHistory,
                                                      fValidExitNormal,
                                                      fExitNormal,
                                                      fExiting,
                                                      fEntering,
                                                      &fBlockedPhysicalVolume,
                                                      fBlockedReplicaNo,
                                                      motherPhysical);
             }
           }
         }
         break;
       case kParameterised:
         if( GetDaughtersRegularStructureId(motherLogical) != 1 )
         {
           Step = fparamNav.ComputeStep(fLastLocatedPointLocal,
                                        localDirection,
                                        pCurrentProposedStepLength,
                                        pNewSafety,
                                        fHistory,
                                        fValidExitNormal,
                                        fExitNormal,
                                        fExiting,
                                        fEntering,
                                        &fBlockedPhysicalVolume,
                                        fBlockedReplicaNo);
         }
         else  // Regular structure
         {
           Step = fregularNav.ComputeStep(fLastLocatedPointLocal,
                                          localDirection,
                                          pCurrentProposedStepLength,
                                          pNewSafety,
                                          fHistory,
                                          fValidExitNormal,
                                          fExitNormal,
                                          fExiting,
                                          fEntering,
                                          &fBlockedPhysicalVolume,
                                          fBlockedReplicaNo);
         }
         break;
       case kReplica:
         G4Exception("G4ITNavigator1::ComputeStep()", "GeomNav0001",
                     FatalException, "Not applicable for replicated volumes.");
         break;
     }
   }
   else
   {
     // In the case of a replica, it must handle the exiting
     // edge/corner problem by itself
     //
     G4bool exitingReplica = fExitedMother;
     G4bool calculatedExitNormal= false;
     
     Step = freplicaNav.ComputeStep(pGlobalpoint,
                                    pDirection,
                                    fLastLocatedPointLocal,
                                    localDirection,
                                    pCurrentProposedStepLength,
                                    pNewSafety,
                                    fHistory,
                                    fValidExitNormal,
                                    calculatedExitNormal,
                                    fExitNormal,
                                    exitingReplica,
                                    fEntering,
                                    &fBlockedPhysicalVolume,
                                    fBlockedReplicaNo);
     fExiting= exitingReplica;                          
     fCalculatedExitNormal= calculatedExitNormal;
   }
 
   // Remember last safety origin & value.
   //
   fPreviousSftOrigin = pGlobalpoint;
   fPreviousSafety = pNewSafety; 
 
   // Count zero steps - one can occur due to changing momentum at a boundary
   //                  - one, two (or a few) can occur at common edges between
   //                    volumes
   //                  - more than two is likely a problem in the geometry
   //                    description or the Navigation 
 
   // Rule of thumb: likely at an Edge if two consecutive steps are zero,
   //                because at least two candidate volumes must have been
   //                checked
   //
   fLocatedOnEdge   = fLastStepWasZero && (Step==0.0);
   fLastStepWasZero = (Step==0.0);
   if (fPushed)  { fPushed = fLastStepWasZero; }
 
   // Handle large number of consecutive zero steps
   //
   if ( fLastStepWasZero )
   {
     fNumberZeroSteps++;
 #ifdef G4DEBUG_NAVIGATION
     if( fNumberZeroSteps > 1 )
     {
        G4cout << "G4ITNavigator1::ComputeStep(): another zero step, # "
               << fNumberZeroSteps
               << " at " << pGlobalpoint
               << " in volume " << motherPhysical->GetName()
               << " nav-comp-step calls # " << sNavCScalls
               << G4endl;
     }
 #endif
     if( fNumberZeroSteps > fActionThreshold_NoZeroSteps-1 )
     {
        // Act to recover this stuck track. Pushing it along direction
        //
        Step += 100*kCarTolerance;
 #ifdef G4VERBOSE
        if ((!fPushed) && (fWarnPush))
        {
          std::ostringstream message;
          message << "Track stuck or not moving." << G4endl
                  << "          Track stuck, not moving for " 
                  << fNumberZeroSteps << " steps" << G4endl
                  << "          in volume -" << motherPhysical->GetName()
                  << "- at point " << pGlobalpoint << G4endl
                  << "          direction: " << pDirection << "." << G4endl
                  << "          Potential geometry or navigation problem !"
                  << G4endl
                  << "          Trying pushing it of " << Step << " mm ...";
          G4Exception("G4ITNavigator1::ComputeStep()", "GeomNav1002",
                      JustWarning, message, "Potential overlap in geometry!");
        }
 #endif
        fPushed = true;
     }
     if( fNumberZeroSteps > fAbandonThreshold_NoZeroSteps-1 )
     {
       // Must kill this stuck track
       //
       std::ostringstream message;
       message << "Stuck Track: potential geometry or navigation problem."
               << G4endl
               << "        Track stuck, not moving for " 
               << fNumberZeroSteps << " steps" << G4endl
               << "        in volume -" << motherPhysical->GetName()
               << "- at point " << pGlobalpoint << G4endl
               << "        direction: " << pDirection << ".";
       motherPhysical->CheckOverlaps(5000, false);
       G4Exception("G4ITNavigator1::ComputeStep()", "GeomNav0003",
                   EventMustBeAborted, message);
     }
   }
   else
   {
     if (!fPushed)  fNumberZeroSteps = 0;
   }
 
   fEnteredDaughter = fEntering;   // I expect to enter a volume in this Step
   fExitedMother = fExiting;
 
   fStepEndPoint = pGlobalpoint + Step * pDirection; 
   fLastStepEndPointLocal = fLastLocatedPointLocal + Step * localDirection; 
 
   if( fExiting )
   {
 #ifdef G4DEBUG_NAVIGATION
     if( fVerbose > 2 )
     { 
       G4cout << " At G4Nav CompStep End - if(exiting) - fExiting= " << fExiting 
              << " fValidExitNormal = " << fValidExitNormal  << G4endl;
       G4cout << " fExitNormal= " << fExitNormal << G4endl;
     }
 #endif
 
     if(fValidExitNormal || fCalculatedExitNormal)
     {
       if (  fHistory.GetTopVolumeType()!=kReplica )
       {
         // Convention: fExitNormal is in the 'grand-mother' coordinate system
         //
         fGrandMotherExitNormal= fExitNormal;
         fCalculatedExitNormal= true;
       }
       else
       {
         fGrandMotherExitNormal = fExitNormal;
       }
     }
     else
     {  
       // We must calculate the normal anyway (in order to have it if requested)
       //
       G4ThreeVector finalLocalPoint =
             fLastLocatedPointLocal + localDirection*Step;
 
       if (  fHistory.GetTopVolumeType()!=kReplica )
       {
         // Find normal in the 'mother' coordinate system
         //
         G4ThreeVector exitNormalMotherFrame=
            motherLogical->GetSolid()->SurfaceNormal(finalLocalPoint);
         
         // Transform it to the 'grand-mother' coordinate system
         //
         const G4RotationMatrix* mRot = motherPhysical->GetRotation();
         if( mRot )
         {
           fChangedGrandMotherRefFrame= true;           
           fGrandMotherExitNormal = (*mRot).inverse() * exitNormalMotherFrame;
         }
         else
         {
           fGrandMotherExitNormal = exitNormalMotherFrame;
         }
 
         // Do not set fValidExitNormal -- this signifies
         // that the solid is convex!
         //
         fCalculatedExitNormal= true;
       }
       else
       {
         fCalculatedExitNormal = false;
         //
         // Nothing can be done at this stage currently - to solve this
         // Replica Navigation must have calculated the normal for this case
         // already.
         // Cases: mother is not convex, and exit is at previous replica level
 
 #ifdef G4DEBUG_NAVIGATION
         G4ExceptionDescription desc;
 
         desc << "Problem in ComputeStep:  Replica Navigation did not provide"
              << " valid exit Normal. " << G4endl;
         desc << " Do not know how calculate it in this case." << G4endl;
         desc << "  Location    = " << finalLocalPoint << G4endl;
         desc << "  Volume name = " << motherPhysical->GetName()
              << "  copy/replica No = " << motherPhysical->GetCopyNo() << G4endl;
         G4Exception("G4ITNavigator1::ComputeStep()", "GeomNav0003",
                     JustWarning, desc, "Normal not available for exiting.");
 #endif
       }
     }
 
     // Now transform it to the global reference frame !!
     //
     if( fValidExitNormal || fCalculatedExitNormal )
     {
       G4int depth= fHistory.GetDepth();
       if( depth > 0 )
       {
         G4AffineTransform GrandMotherToGlobalTransf =
           fHistory.GetTransform(depth-1).Inverse();
         fExitNormalGlobalFrame =
           GrandMotherToGlobalTransf.TransformAxis( fGrandMotherExitNormal );
       }
       else
       {
         fExitNormalGlobalFrame= fGrandMotherExitNormal;
       }
     }
     else
     {
       fExitNormalGlobalFrame= G4ThreeVector( 0., 0., 0.);
     }
   }
   fStepEndPoint= pGlobalpoint+Step*pDirection; 
 
   if( (Step == pCurrentProposedStepLength) && (!fExiting) && (!fEntering) )
   {
     // This if Step is not really limited by the geometry.
     // The Navigator is obliged to return "infinity"
     //
     Step = kInfinity;
   }
 
 #ifdef G4VERBOSE
   if( fVerbose > 1 )
   {
     if( fVerbose >= 4 )
     {
       G4cout << "    ----- Upon exiting :" << G4endl;
       PrintState();
     }
     G4cout << "  Returned step= " << Step;
     if( fVerbose > 5 )   G4cout << G4endl;
     if( Step == kInfinity )
     {
        G4cout << " Requested step= " << pCurrentProposedStepLength ;
        if( fVerbose > 5) G4cout << G4endl;
     }
     G4cout << "  Safety = " << pNewSafety << G4endl;
   }
 #endif
 
   return Step;
 }

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G4GRSSolid* G4ITNavigator1::CreateGRSSolid ( ) const

inline

G4GRSVolume* G4ITNavigator1::CreateGRSVolume ( ) const

inline

G4TouchableHistory* G4ITNavigator1::CreateTouchableHistory ( ) const

inline

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G4TouchableHistory* G4ITNavigator1::CreateTouchableHistory ( const G4NavigationHistory * ) const

inline

G4TouchableHistoryHandle G4ITNavigator1::CreateTouchableHistoryHandle ( ) const

virtual

Definition at line 1832 of file G4ITNavigator1.cc.

 {
   return G4TouchableHistoryHandle( CreateTouchableHistory() );
 }

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void G4ITNavigator1::EnableBestSafety ( G4bool value = false )

inline

G4bool G4ITNavigator1::EnteredDaughterVolume ( ) const

inline

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G4bool G4ITNavigator1::ExitedMotherVolume ( ) const

inline

G4ThreeVector G4ITNavigator1::GetCurrentLocalCoordinate ( ) const

inline

G4int G4ITNavigator1::GetDaughtersRegularStructureId ( const G4LogicalVolume * pLog ) const

inlineprotected

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G4ThreeVector G4ITNavigator1::GetGlobalExitNormal	(	const G4ThreeVector &	point,
		G4bool *	valid
	)

virtual

Definition at line 1590 of file G4ITNavigator1.cc.

 {
   G4bool         validNormal;
   G4ThreeVector  localNormal, globalNormal;
 
   if( fLastTriedStepComputation && fExiting )  
   {
     // This was computed in ComputeStep -- and only on arrival at boundary
     //
     globalNormal = fExitNormalGlobalFrame; 
     *pNormalCalculated = true; // ComputeStep always computes it if Exiting
                                // (fExiting==true)
   }
   else
   {
     localNormal = GetLocalExitNormalAndCheck(IntersectPointGlobal,&validNormal);
     *pNormalCalculated = fCalculatedExitNormal;
 
 #ifdef G4DEBUG_NAVIGATION
     if( (!validNormal) && !fCalculatedExitNormal)
     {
       G4ExceptionDescription edN;
       edN << "  Calculated = " << fCalculatedExitNormal << G4endl;
       edN << "   Entering= "  << fEntering << G4endl;
       G4int oldVerbose= this->GetVerboseLevel();
       this->SetVerboseLevel(4);
       edN << "   State of Navigator: " << G4endl;
       edN << *this << G4endl;
       this->SetVerboseLevel( oldVerbose );
        
       G4Exception("G4ITNavigator1::GetGlobalExitNormal()",
                   "GeomNav0003", JustWarning, edN,
                   "LocalExitNormalAndCheck() did not calculate Normal.");
      }
 #endif
      
      G4double localMag2= localNormal.mag2();
      if( validNormal && (std::fabs(localMag2-1.0)) > CLHEP::perMillion )
      {
        G4ExceptionDescription edN;
 
        edN << "G4ITNavigator1::GetGlobalExitNormal: "
            << "  Using Local Normal - from call to GetLocalExitNormalAndCheck. "
            << G4endl
            << "  Local  Exit Normal = " << localNormal  << " || = "
            << std::sqrt(localMag2) << G4endl
            << "  Global Exit Normal = " << globalNormal << " || = "
            << globalNormal.mag() << G4endl;
        edN << "  Calculated It      = " << fCalculatedExitNormal << G4endl;
 
        G4Exception("G4ITNavigator1::GetGlobalExitNormal()",
                    "GeomNav0003",JustWarning, edN,
                    "Value obtained from new local *solid* is incorrect.");
        localNormal = localNormal.unit(); // Should we correct it ??
      }
      G4AffineTransform localToGlobal = GetLocalToGlobalTransform();
      globalNormal = localToGlobal.TransformAxis( localNormal );
   }
 
 #ifdef G4DEBUG_NAVIGATION
   // Temporary extra checks
   if( fLastTriedStepComputation && fExiting)
   {
     localNormal = GetLocalExitNormalAndCheck( IntersectPointGlobal, &validNormal);
     *pNormalCalculated = fCalculatedExitNormal;
 
     G4AffineTransform localToGlobal = GetLocalToGlobalTransform();
     globalNormal = localToGlobal.TransformAxis( localNormal );
     
     // Check the value computed against fExitNormalGlobalFrame
     G4ThreeVector diffNorm = globalNormal - fExitNormalGlobalFrame;
     if( diffNorm.mag2() > perMillion*CLHEP::perMillion)
     {
       G4ExceptionDescription edDfn;
       edDfn << "Found difference in normals in case of exiting mother "
             << "- when Get is called after ComputingStep " << G4endl;
       edDfn << "  Magnitude of diff =      " << diffNorm.mag() << G4endl;
       edDfn << "  Normal stored (Global)     = " << fExitNormalGlobalFrame
             << G4endl;
       edDfn << "  Global Computed from Local = " << globalNormal << G4endl;
       G4Exception("G4ITNavigator1::GetGlobalExitNormal()", "GeomNav0003",
                   JustWarning, edDfn);
     }
   }
 #endif
    
   return globalNormal;
 }

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const G4AffineTransform& G4ITNavigator1::GetGlobalToLocalTransform ( ) const

inline

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G4ThreeVector G4ITNavigator1::GetLocalExitNormal ( G4bool * valid )

virtual

Definition at line 1348 of file G4ITNavigator1.cc.

 {
   G4ThreeVector    ExitNormal(0.,0.,0.);
   G4VSolid        *currentSolid=0;
   G4LogicalVolume *candidateLogical;
   if ( fLastTriedStepComputation ) 
   {
     // use fLastLocatedPointLocal and next candidate volume
     //
     G4ThreeVector nextSolidExitNormal(0.,0.,0.);
 
     if( fEntering && (fBlockedPhysicalVolume!=0) ) 
     { 
       candidateLogical= fBlockedPhysicalVolume->GetLogicalVolume();
       if( candidateLogical ) 
       {
         // fLastStepEndPointLocal is in the coordinates of the mother
         // we need it in the daughter's coordinate system.
 
         // The following code should also work in case of Replica
         {
           // First transform fLastLocatedPointLocal to the new daughter
           // coordinates
           //
           G4AffineTransform MotherToDaughterTransform=
             GetMotherToDaughterTransform( fBlockedPhysicalVolume, 
                                           fBlockedReplicaNo,
                                           VolumeType(fBlockedPhysicalVolume) ); 
           G4ThreeVector daughterPointOwnLocal= 
             MotherToDaughterTransform.TransformPoint( fLastStepEndPointLocal ); 
 
           // OK if it is a parameterised volume
           //
           EInside  inSideIt; 
           G4bool   onSurface;
           G4double safety= -1.0; 
           currentSolid= candidateLogical->GetSolid(); 
           inSideIt  =  currentSolid->Inside(daughterPointOwnLocal); 
           onSurface =  (inSideIt == kSurface); 
           if( ! onSurface ) 
           {
             if( inSideIt == kOutside )
             {
               safety = (currentSolid->DistanceToIn(daughterPointOwnLocal)); 
               onSurface = safety < 100.0 * kCarTolerance; 
             }
             else if (inSideIt == kInside )
             {
               safety = (currentSolid->DistanceToOut(daughterPointOwnLocal)); 
               onSurface = safety < 100.0 * kCarTolerance; 
             }
           }
 
           if( onSurface ) 
           {
             nextSolidExitNormal =
               currentSolid->SurfaceNormal(daughterPointOwnLocal); 
  
             // Entering the solid ==> opposite
             //
             ExitNormal = -nextSolidExitNormal;
             fCalculatedExitNormal= true;
           }
           else
           {
 #ifdef G4VERBOSE
             if(( fVerbose == 1 ) && ( fCheck ))
             {
               std::ostringstream message;
               message << "Point not on surface ! " << G4endl
                       << "  Point           = "
                       << daughterPointOwnLocal << G4endl 
                       << "  Physical volume = "
                       << fBlockedPhysicalVolume->GetName() << G4endl
                       << "  Logical volume  = "
                       << candidateLogical->GetName() << G4endl
                       << "  Solid           = " << currentSolid->GetName() 
                       << "  Type            = "
                       << currentSolid->GetEntityType() << G4endl
                       << *currentSolid << G4endl;
               if( inSideIt == kOutside )
               { 
                 message << "Point is Outside. " << G4endl
                         << "  Safety (from outside) = " << safety << G4endl;
               }
               else // if( inSideIt == kInside ) 
               {
                 message << "Point is Inside. " << G4endl
                         << "  Safety (from inside) = " << safety << G4endl;              
               }
               G4Exception("G4ITNavigator1::GetLocalExitNormal()", "GeomNav1001",
                           JustWarning, message);
             }
 #endif
           }
           *valid = onSurface;   //   was =true;
         }
       }
     }
     else if ( fExiting ) 
     {
       ExitNormal = fGrandMotherExitNormal;
       *valid = true;
       fCalculatedExitNormal= true;  // Should be true already
     }
     else  // i.e.  ( fBlockedPhysicalVolume == 0 )
     {
       *valid = false;
       G4Exception("G4ITNavigator1::GetLocalExitNormal()",
                   "GeomNav0003", JustWarning, 
                   "Incorrect call to GetLocalSurfaceNormal." );
     }
   }
   else //  ( ! fLastTriedStepComputation ) ie. last call was to Locate
   {
     if ( EnteredDaughterVolume() )
     {
       G4VSolid* daughterSolid =fHistory.GetTopVolume()->GetLogicalVolume()
                                                       ->GetSolid();
       ExitNormal= -(daughterSolid->SurfaceNormal(fLastLocatedPointLocal));
       if( std::fabs(ExitNormal.mag2()-1.0 ) > CLHEP::perMillion )
       {
         G4ExceptionDescription desc;
         desc << " Parameters of solid: " << *daughterSolid
              << " Point for surface = " << fLastLocatedPointLocal << std::endl;
         G4Exception("G4ITNavigator1::GetLocalExitNormal()",
                     "GeomNav0003", FatalException, desc,
                     "Surface Normal returned by Solid is not a Unit Vector." );
       }
       fCalculatedExitNormal= true;
       *valid = true;
     }
     else
     {
       if( fExitedMother )
       {
         ExitNormal = fGrandMotherExitNormal;
         *valid = true;
         fCalculatedExitNormal= true;
       }
       else  // We are not at a boundary. ExitNormal remains (0,0,0)
       { 
         *valid = false;
         fCalculatedExitNormal= false; 
         G4ExceptionDescription message; 
         message << "Function called when *NOT* at a Boundary." << G4endl;
         G4Exception("G4ITNavigator1::GetLocalExitNormal()",
                     "GeomNav0003", JustWarning, message); 
       }
     }
   }
   return ExitNormal;
 }

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G4ThreeVector G4ITNavigator1::GetLocalExitNormalAndCheck	(	const G4ThreeVector &	point,
		G4bool *	valid
	)

virtual

Definition at line 1555 of file G4ITNavigator1.cc.

 {
 #ifdef G4DEBUG_NAVIGATION
   // Check Current point against expected 'local' value
   //
   if ( fLastTriedStepComputation ) 
   {
     G4ThreeVector ExpectedBoundaryPointLocal;
 
     const G4AffineTransform& GlobalToLocal= GetGlobalToLocalTransform(); 
     ExpectedBoundaryPointLocal =
       GlobalToLocal.TransformPoint( ExpectedBoundaryPointGlobal ); 
 
     // Add here:  Comparison against expected position,
     //            i.e. the endpoint of ComputeStep
   }
 #endif
   
   return GetLocalExitNormal( pValid); 
 }

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const G4AffineTransform G4ITNavigator1::GetLocalToGlobalTransform ( ) const

inline

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G4AffineTransform G4ITNavigator1::GetMotherToDaughterTransform	(	G4VPhysicalVolume *	dVolume,
		G4int	dReplicaNo,
		EVolume	dVolumeType
	)

Definition at line 1509 of file G4ITNavigator1.cc.

 {
   switch (enteringVolumeType)
   {
     case kNormal:  // Nothing is needed to prepare the transformation
       break;       // It is stored already in the physical volume (placement)
     case kReplica: // Sets the transform in the Replica - tbc
       G4Exception("G4ITNavigator1::GetMotherToDaughterTransform()",
                   "GeomNav0001", FatalException,
                   "Method NOT Implemented yet for replica volumes.");
       break;
     case kParameterised:
       if( pEnteringPhysVol->GetRegularStructureId() == 0 )
       {
         G4VPVParameterisation *pParam =
           pEnteringPhysVol->GetParameterisation();
         G4VSolid* pSolid =
           pParam->ComputeSolid(enteringReplicaNo, pEnteringPhysVol);
         pSolid->ComputeDimensions(pParam, enteringReplicaNo, pEnteringPhysVol);
 
         // Sets the transform in the Parameterisation
         //
         pParam->ComputeTransformation(enteringReplicaNo, pEnteringPhysVol);
 
         // Set the correct solid and material in Logical Volume
         //
         G4LogicalVolume* pLogical = pEnteringPhysVol->GetLogicalVolume();
         pLogical->SetSolid( pSolid );
       }
       break;
   }
   return G4AffineTransform(pEnteringPhysVol->GetRotation(), 
                            pEnteringPhysVol->GetTranslation()).Invert(); 
 }

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G4ITNavigatorState_Lock1 * G4ITNavigator1::GetNavigatorState ( )

Definition at line 656 of file G4ITNavigator1.cc.

 {
     SetSavedState();
     return fpSaveState;
 }

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G4int G4ITNavigator1::GetVerboseLevel ( ) const

inline

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G4VPhysicalVolume* G4ITNavigator1::GetWorldVolume ( ) const

inline

G4bool G4ITNavigator1::IsActive ( ) const

inline

G4bool G4ITNavigator1::IsCheckModeActive ( ) const

inline

G4VPhysicalVolume * G4ITNavigator1::LocateGlobalPointAndSetup	(	const G4ThreeVector &	point,
		const G4ThreeVector *	direction = `0`,
		const G4bool	pRelativeSearch = `true`,
		const G4bool	ignoreDirection = `true`
	)

virtual

Definition at line 160 of file G4ITNavigator1.cc.

 {
   G4bool notKnownContained=true, noResult;
   G4VPhysicalVolume *targetPhysical;
   G4LogicalVolume *targetLogical;
   G4VSolid *targetSolid=0;
   G4ThreeVector localPoint, globalDirection;
   EInside insideCode;
   
   G4bool considerDirection = (!ignoreDirection) || fLocatedOnEdge;
 
   fLastTriedStepComputation=   false;   
   fChangedGrandMotherRefFrame= false;  // For local exit normal
    
   if( considerDirection && pGlobalDirection != 0 )
   {
     globalDirection=*pGlobalDirection;
   }
 
 
 #ifdef G4VERBOSE
   if( fVerbose > 2 )
   {
     G4int oldcoutPrec = G4cout.precision(8);
     G4cout << "*** G4ITNavigator1::LocateGlobalPointAndSetup: ***" << G4endl;
     G4cout << "    Called with arguments: " << G4endl
            << "    Globalpoint = " << globalPoint << G4endl
            << "    RelativeSearch = " << relativeSearch  << G4endl;
     if( fVerbose == 4 )
     {
       G4cout << "    ----- Upon entering:" << G4endl;
       PrintState();
     }
     G4cout.precision(oldcoutPrec);
   }
 #endif
 
   if ( !relativeSearch )
   {
     ResetStackAndState();
   }
   else
   {
     if ( fWasLimitedByGeometry )
     {
       fWasLimitedByGeometry = false;
       fEnteredDaughter = fEntering;   // Remember
       fExitedMother = fExiting;       // Remember
       if ( fExiting )
       {
         if ( fHistory.GetDepth() )
         {
           fBlockedPhysicalVolume = fHistory.GetTopVolume();
           fBlockedReplicaNo = fHistory.GetTopReplicaNo();
           fHistory.BackLevel();
         }
         else
         {
           fLastLocatedPointLocal = localPoint;
           fLocatedOutsideWorld = true;
           return 0;           // Have exited world volume
         }
         // A fix for the case where a volume is "entered" at an edge
         // and a coincident surface exists outside it.
         //  - This stops it from exiting further volumes and cycling
         //  - However ReplicaNavigator treats this case itself
         //
         if ( fLocatedOnEdge && (VolumeType(fBlockedPhysicalVolume)!=kReplica ))
         { 
           fExiting= false;
         }
       }
       else
         if ( fEntering )
         {
           switch (VolumeType(fBlockedPhysicalVolume))
           {
             case kNormal:
               fHistory.NewLevel(fBlockedPhysicalVolume, kNormal,
                                 fBlockedPhysicalVolume->GetCopyNo());
               break;
             case kReplica:
               freplicaNav.ComputeTransformation(fBlockedReplicaNo,
                                                 fBlockedPhysicalVolume);
               fHistory.NewLevel(fBlockedPhysicalVolume, kReplica,
                                 fBlockedReplicaNo);
               fBlockedPhysicalVolume->SetCopyNo(fBlockedReplicaNo);
               break;
             case kParameterised:
               if( fBlockedPhysicalVolume->GetRegularStructureId() == 0 )
               {
                 G4VSolid *pSolid;
                 G4VPVParameterisation *pParam;
                 G4TouchableHistory parentTouchable( fHistory );
                 pParam = fBlockedPhysicalVolume->GetParameterisation();
                 pSolid = pParam->ComputeSolid(fBlockedReplicaNo,
                                               fBlockedPhysicalVolume);
                 pSolid->ComputeDimensions(pParam, fBlockedReplicaNo,
                                           fBlockedPhysicalVolume);
                 pParam->ComputeTransformation(fBlockedReplicaNo,
                                               fBlockedPhysicalVolume);
                 fHistory.NewLevel(fBlockedPhysicalVolume, kParameterised,
                                   fBlockedReplicaNo);
                 fBlockedPhysicalVolume->SetCopyNo(fBlockedReplicaNo);
                 //
                 // Set the correct solid and material in Logical Volume
                 //
                 G4LogicalVolume *pLogical;
                 pLogical = fBlockedPhysicalVolume->GetLogicalVolume();
                 pLogical->SetSolid( pSolid );
                 pLogical->UpdateMaterial(pParam ->
                   ComputeMaterial(fBlockedReplicaNo,
                                   fBlockedPhysicalVolume, 
                                   &parentTouchable));
               }
               break;
           }
           fEntering = false;
           fBlockedPhysicalVolume = 0;
           localPoint = fHistory.GetTopTransform().TransformPoint(globalPoint);
           notKnownContained = false;
         }
     }
     else
     {
       fBlockedPhysicalVolume = 0;
       fEntering = false;
       fEnteredDaughter = false;  // Full Step was not taken, did not enter
       fExiting = false;
       fExitedMother = false;     // Full Step was not taken, did not exit
     }
   }
   //
   // Search from top of history up through geometry until
   // containing volume found:
   // If on 
   // o OUTSIDE - Back up level, not/no longer exiting volumes
   // o SURFACE and EXITING - Back up level, setting new blocking no.s
   // else
   // o containing volume found
   //
   G4int noLevelsExited=0 ;
 
   while (notKnownContained)
   {
     if ( fHistory.GetTopVolumeType()!=kReplica )
     {
       targetSolid = fHistory.GetTopVolume()->GetLogicalVolume()->GetSolid();
       localPoint = fHistory.GetTopTransform().TransformPoint(globalPoint);
       insideCode = targetSolid->Inside(localPoint);
 #ifdef G4VERBOSE
       if(( fVerbose == 1 ) && ( fCheck ))
       {
          G4String solidResponse = "-kInside-";
          if (insideCode == kOutside)
            solidResponse = "-kOutside-";
          else if (insideCode == kSurface)
            solidResponse = "-kSurface-";
          G4cout << "*** G4ITNavigator1::LocateGlobalPointAndSetup(): ***" << G4endl
                 << "    Invoked Inside() for solid: " << targetSolid->GetName()
                 << ". Solid replied: " << solidResponse << G4endl
                 << "    For local point p: " << localPoint << G4endl;
       }
 #endif
     }
     else
     {
       insideCode = freplicaNav.BackLocate(fHistory, globalPoint, localPoint,
                                           fExiting, notKnownContained);
       // !CARE! if notKnownContained returns false then the point is within
       // the containing placement volume of the replica(s). If insidecode
       // will result in the history being backed up one level, then the
       // local point returned is the point in the system of this new level
     }
 
 
     if ( insideCode==kOutside )
     {
       noLevelsExited++; 
       if ( fHistory.GetDepth() )
       {
         fBlockedPhysicalVolume = fHistory.GetTopVolume();
         fBlockedReplicaNo = fHistory.GetTopReplicaNo();
         fHistory.BackLevel();
         fExiting = false;
 
         if( noLevelsExited > 1 )
         {
           // The first transformation was done by the sub-navigator
           //
           const G4RotationMatrix* mRot = fBlockedPhysicalVolume->GetRotation();
           if( mRot )
           { 
             fGrandMotherExitNormal *= (*mRot).inverse();
             fChangedGrandMotherRefFrame= true;
           }
         }
       }
       else
       {
         fLastLocatedPointLocal = localPoint;
         fLocatedOutsideWorld = true;
           // No extra transformation for ExitNormal - is in frame of Top Volume
         return 0;         // Have exited world volume
       }
     }
     else
       if ( insideCode==kSurface )
       {
         G4bool isExiting = fExiting;
         if( (!fExiting)&&considerDirection )
         {
           // Figure out whether we are exiting this level's volume
           // by using the direction
           //
           G4bool directionExiting = false;
           G4ThreeVector localDirection =
               fHistory.GetTopTransform().TransformAxis(globalDirection);
 
           // Make sure localPoint in correct reference frame
           //     ( Was it already correct ? How ? )
           //
           localPoint= fHistory.GetTopTransform().TransformPoint(globalPoint);
           if ( fHistory.GetTopVolumeType()!=kReplica )
           {
             G4ThreeVector normal = targetSolid->SurfaceNormal(localPoint);
             directionExiting = normal.dot(localDirection) > 0.0;
             isExiting = isExiting || directionExiting;
           }
         }
         if( isExiting )
         {
           noLevelsExited++; 
           if ( fHistory.GetDepth() )
           {
             fBlockedPhysicalVolume = fHistory.GetTopVolume();
             fBlockedReplicaNo = fHistory.GetTopReplicaNo();
             fHistory.BackLevel();
             //
             // Still on surface but exited volume not necessarily convex
             //
             fValidExitNormal = false;
 
             if( noLevelsExited > 1 )
             {
               // The first transformation was done by the sub-navigator
               //
               const G4RotationMatrix* mRot=fBlockedPhysicalVolume->GetRotation();
               if( mRot )
               { 
                 fGrandMotherExitNormal *= (*mRot).inverse();
                 fChangedGrandMotherRefFrame= true;
               }
             }
           } 
           else
           {
             fLastLocatedPointLocal = localPoint;
             fLocatedOutsideWorld = true;
               // No extra transformation for ExitNormal, is in frame of Top Vol
             return 0;          // Have exited world volume
           }
         }
         else
         {
           notKnownContained=false;
         }
       }
       else
       {
         notKnownContained=false;
       }
   }  // END while (notKnownContained)
   //
   // Search downwards until deepest containing volume found,
   // blocking fBlockedPhysicalVolume/BlockedReplicaNum
   //
   // 3 Cases:
   //
   // o Parameterised daughters
   //   =>Must be one G4PVParameterised daughter & voxels
   // o Positioned daughters & voxels
   // o Positioned daughters & no voxels
 
   noResult = true;  // noResult should be renamed to 
                     // something like enteredLevel, as that is its meaning.
   do
   {
     // Determine `type' of current mother volume
     //
     targetPhysical = fHistory.GetTopVolume();
     if (!targetPhysical) { break; }
     targetLogical = targetPhysical->GetLogicalVolume();
     switch( CharacteriseDaughters(targetLogical) )
     {
       case kNormal:
         if ( targetLogical->GetVoxelHeader() )  // use optimised navigation
         {
           noResult = fvoxelNav.LevelLocate(fHistory,
                                            fBlockedPhysicalVolume,
                                            fBlockedReplicaNo,
                                            globalPoint,
                                            pGlobalDirection,
                                            considerDirection,
                                            localPoint);
         }
         else                       // do not use optimised navigation
         {
           noResult = fnormalNav.LevelLocate(fHistory,
                                             fBlockedPhysicalVolume,
                                             fBlockedReplicaNo,
                                             globalPoint,
                                             pGlobalDirection,
                                             considerDirection,
                                             localPoint);
         }
         break;
       case kReplica:
         noResult = freplicaNav.LevelLocate(fHistory,
                                            fBlockedPhysicalVolume,
                                            fBlockedReplicaNo,
                                            globalPoint,
                                            pGlobalDirection,
                                            considerDirection,
                                            localPoint);
         break;
       case kParameterised:
         if( GetDaughtersRegularStructureId(targetLogical) != 1 )
         {
           noResult = fparamNav.LevelLocate(fHistory,
                                            fBlockedPhysicalVolume,
                                            fBlockedReplicaNo,
                                            globalPoint,
                                            pGlobalDirection,
                                            considerDirection,
                                            localPoint);
         }
         else  // Regular structure
         {
           noResult = fregularNav.LevelLocate(fHistory,
                                              fBlockedPhysicalVolume,
                                              fBlockedReplicaNo,
                                              globalPoint,
                                              pGlobalDirection,
                                              considerDirection,
                                              localPoint);
         }
         break;
     }
 
     // LevelLocate returns true if it finds a daughter volume 
     // in which globalPoint is inside (or on the surface).
 
     if ( noResult )
     {
       // Entering a daughter after ascending
       //
       // The blocked volume is no longer valid - it was for another level
       //
       fBlockedPhysicalVolume = 0;
       fBlockedReplicaNo = -1;
 
       // fEntering should be false -- else blockedVolume is assumed good.
       // fEnteredDaughter is used for ExitNormal
       //
       fEntering = false;
       fEnteredDaughter = true;
 
       if( fExitedMother )
       {
         G4VPhysicalVolume* enteredPhysical = fHistory.GetTopVolume();
         const G4RotationMatrix* mRot = enteredPhysical->GetRotation();
         if( mRot )
         { 
           fGrandMotherExitNormal *= (*mRot).inverse();
         }
       }
 
 #ifdef G4DEBUG_NAVIGATION
       if( fVerbose > 2 )
       { 
          G4VPhysicalVolume* enteredPhysical = fHistory.GetTopVolume();
          G4cout << "*** G4ITNavigator1::LocateGlobalPointAndSetup() ***" << G4endl;
          G4cout << "    Entering volume: " << enteredPhysical->GetName()
                 << G4endl;
       }
 #endif
     }
   } while (noResult);
 
   fLastLocatedPointLocal = localPoint;
 
 #ifdef G4VERBOSE
   if( fVerbose >= 4 )
   {
     G4int oldcoutPrec = G4cout.precision(8);
     G4String curPhysVol_Name("None");
     if (targetPhysical)  { curPhysVol_Name = targetPhysical->GetName(); }
     G4cout << "    Return value = new volume = " << curPhysVol_Name << G4endl;
     G4cout << "    ----- Upon exiting:" << G4endl;
     PrintState();
     if( fVerbose == 5 )
     {
       G4cout << "Upon exiting LocateGlobalPointAndSetup():" << G4endl;
       G4cout << "    History = " << G4endl << fHistory << G4endl << G4endl;
     }
     G4cout.precision(oldcoutPrec);
   }
 #endif
 
   fLocatedOutsideWorld= false;
 
   return targetPhysical;
 }

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void G4ITNavigator1::LocateGlobalPointAndUpdateTouchable	(	const G4ThreeVector &	position,
		const G4ThreeVector &	direction,
		G4VTouchable *	touchableToUpdate,
		const G4bool	RelativeSearch = `true`
	)

inline

void G4ITNavigator1::LocateGlobalPointAndUpdateTouchable	(	const G4ThreeVector &	position,
		G4VTouchable *	touchableToUpdate,
		const G4bool	RelativeSearch = `true`
	)

inline

void G4ITNavigator1::LocateGlobalPointAndUpdateTouchableHandle	(	const G4ThreeVector &	position,
		const G4ThreeVector &	direction,
		G4TouchableHandle &	oldTouchableToUpdate,
		const G4bool	RelativeSearch = `true`
	)

inline

void G4ITNavigator1::LocateGlobalPointWithinVolume ( const G4ThreeVector & position )

virtual

Definition at line 592 of file G4ITNavigator1.cc.

 {  
    fLastLocatedPointLocal = ComputeLocalPoint(pGlobalpoint);
    fLastTriedStepComputation= false;
    fChangedGrandMotherRefFrame= false;  //  Frame for Exit Normal
 
 #ifdef G4DEBUG_NAVIGATION
    if( fVerbose > 2 )
    { 
      G4cout << "Entering LocateGlobalWithinVolume(): History = " << G4endl;
      G4cout << fHistory << G4endl;
    }
 #endif
 
    // For the case of Voxel (or Parameterised) volume the respective 
    // Navigator must be messaged to update its voxel information etc
 
    // Update the state of the Sub Navigators 
    // - in particular any voxel information they store/cache
    //
    G4VPhysicalVolume*  motherPhysical = fHistory.GetTopVolume();
    G4LogicalVolume*    motherLogical  = motherPhysical->GetLogicalVolume();
    G4SmartVoxelHeader* pVoxelHeader   = motherLogical->GetVoxelHeader();
 
    if ( fHistory.GetTopVolumeType()!=kReplica )
    {
      switch( CharacteriseDaughters(motherLogical) )
      {
        case kNormal:
          if ( pVoxelHeader )
          {
            fvoxelNav.VoxelLocate( pVoxelHeader, fLastLocatedPointLocal );
          }
          break;
        case kParameterised:
          if( GetDaughtersRegularStructureId(motherLogical) != 1 )
          {
            // Resets state & returns voxel node
            //
            fparamNav.ParamVoxelLocate( pVoxelHeader, fLastLocatedPointLocal );
          }
          break;
        case kReplica:
          G4Exception("G4ITNavigator1::LocateGlobalPointWithinVolume()",
                      "GeomNav0001", FatalException,
                      "Not applicable for replicated volumes.");
          break;
      }
    }
 
    // Reset the state variables 
    //   - which would have been affected
    //     by the 'equivalent' call to LocateGlobalPointAndSetup
    //   - who's values have been invalidated by the 'move'.
    //
    fBlockedPhysicalVolume = 0; 
    fBlockedReplicaNo = -1;
    fEntering = false;
    fEnteredDaughter = false;  // Boundary not encountered, did not enter
    fExiting = false;
    fExitedMother = false;     // Boundary not encountered, did not exit
 }

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G4RotationMatrix G4ITNavigator1::NetRotation ( ) const

inline

G4ThreeVector G4ITNavigator1::NetTranslation ( ) const

inline

void G4ITNavigator1::NewNavigatorState ( )

Definition at line 668 of file G4ITNavigator1.cc.

 {
     fpSaveState = new G4SaveNavigatorState();
     ResetState();
 }

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void G4ITNavigator1::PrintState ( ) const

Definition at line 1841 of file G4ITNavigator1.cc.

 {
   G4int oldcoutPrec = G4cout.precision(4);
   if( fVerbose == 4 )
   {
     G4cout << "The current state of G4ITNavigator1 is: " << G4endl;
     G4cout << "  ValidExitNormal= " << fValidExitNormal << G4endl
            << "  ExitNormal     = " << fExitNormal      << G4endl
            << "  Exiting        = " << fExiting         << G4endl
            << "  Entering       = " << fEntering        << G4endl
            << "  BlockedPhysicalVolume= " ;
     if (fBlockedPhysicalVolume==0)
       G4cout << "None";
     else
       G4cout << fBlockedPhysicalVolume->GetName();
     G4cout << G4endl
            << "  BlockedReplicaNo     = " <<  fBlockedReplicaNo       << G4endl
            << "  LastStepWasZero      = " <<   fLastStepWasZero       << G4endl
            << G4endl;   
   }
   if( ( 1 < fVerbose) && (fVerbose < 4) )
   {
     G4cout << G4endl; // Make sure to line up
     G4cout << std::setw(30) << " ExitNormal "  << " "
            << std::setw( 5) << " Valid "       << " "     
            << std::setw( 9) << " Exiting "     << " "      
            << std::setw( 9) << " Entering"     << " " 
            << std::setw(15) << " Blocked:Volume "  << " "   
            << std::setw( 9) << " ReplicaNo"        << " "  
            << std::setw( 8) << " LastStepZero  "   << " "   
            << G4endl;   
     G4cout << "( " << std::setw(7) << fExitNormal.x() 
            << ", " << std::setw(7) << fExitNormal.y()
            << ", " << std::setw(7) << fExitNormal.z() << " ) "
            << std::setw( 5)  << fValidExitNormal  << " "   
            << std::setw( 9)  << fExiting          << " "
            << std::setw( 9)  << fEntering         << " ";
     if ( fBlockedPhysicalVolume==0 )
     {
       G4cout << std::setw(15) << "None";
     }
     else
     {
       G4cout << std::setw(15)<< fBlockedPhysicalVolume->GetName();
     }
     G4cout << std::setw( 9)  << fBlockedReplicaNo  << " "
            << std::setw( 8)  << fLastStepWasZero   << " "
            << G4endl;   
   }
   if( fVerbose > 2 ) 
   {
     G4cout.precision(8);
     G4cout << " Current Localpoint = " << fLastLocatedPointLocal << G4endl;
     G4cout << " PreviousSftOrigin  = " << fPreviousSftOrigin << G4endl;
     G4cout << " PreviousSafety     = " << fPreviousSafety << G4endl; 
   }
   G4cout.precision(oldcoutPrec);
 }

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G4VPhysicalVolume * G4ITNavigator1::ResetHierarchyAndLocate	(	const G4ThreeVector &	point,
		const G4ThreeVector &	direction,
		const G4TouchableHistory &	h
	)

virtual

Definition at line 132 of file G4ITNavigator1.cc.

 {
   ResetState();
   fHistory = *h.GetHistory();
   SetupHierarchy();
   fLastTriedStepComputation= false;  // Redundant, but best
   return LocateGlobalPointAndSetup(p, &direction, true, false);
 }

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void G4ITNavigator1::ResetStackAndState ( )

inline

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void G4ITNavigator1::ResetState ( )

virtual

Definition at line 1259 of file G4ITNavigator1.cc.

 {
   fWasLimitedByGeometry  = false;
   fEntering              = false;
   fExiting               = false;
   fLocatedOnEdge         = false;
   fLastStepWasZero       = false;
   fEnteredDaughter       = false;
   fExitedMother          = false;
   fPushed                = false;
 
   fValidExitNormal       = false;
   fChangedGrandMotherRefFrame= false;
   fCalculatedExitNormal  = false;
 
   fExitNormal            = G4ThreeVector(0,0,0);
   fGrandMotherExitNormal = G4ThreeVector(0,0,0);
   fExitNormalGlobalFrame = G4ThreeVector(0,0,0);
 
   fPreviousSftOrigin     = G4ThreeVector(0,0,0);
   fPreviousSafety        = 0.0; 
 
   fNumberZeroSteps       = 0;
     
   fBlockedPhysicalVolume = 0;
   fBlockedReplicaNo      = -1;
 
   fLastLocatedPointLocal = G4ThreeVector( kInfinity, -kInfinity, 0.0 ); 
   fLocatedOutsideWorld   = false;
 }

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void G4ITNavigator1::RestoreSavedState ( )

Definition at line 727 of file G4ITNavigator1.cc.

 {
   fExitNormal = fpSaveState->sExitNormal;
   fValidExitNormal = fpSaveState->sValidExitNormal;
   fExiting = fpSaveState->sExiting;
   fEntering = fpSaveState->sEntering;
 
   fBlockedPhysicalVolume = fpSaveState->spBlockedPhysicalVolume;
   fBlockedReplicaNo = fpSaveState->sBlockedReplicaNo,
 
   fLastStepWasZero = fpSaveState->sLastStepWasZero;
 
   // !>
   fPreviousSftOrigin = fpSaveState->sPreviousSftOrigin ;
   fPreviousSafety = fpSaveState->sPreviousSafety ;
   fNumberZeroSteps = fpSaveState->sNumberZeroSteps ;
   fLocatedOnEdge = fpSaveState->sLocatedOnEdge ;
   fWasLimitedByGeometry = fpSaveState->sWasLimitedByGeometry;
   fPushed = fpSaveState->sPushed;
   fNumberZeroSteps = fpSaveState->sNumberZeroSteps;
   fEnteredDaughter= fpSaveState->sEnteredDaughter ;
   fExitedMother = fpSaveState->sExitedMother ;
 
   fLastLocatedPointLocal = fpSaveState->sLastLocatedPointLocal ;
   fLocatedOutsideWorld = fpSaveState->sLocatedOutsideWorld;
   // <!
 }

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void G4ITNavigator1::SetGeometricallyLimitedStep ( )

inline

void G4ITNavigator1::SetNavigatorState ( G4ITNavigatorState_Lock1 * navState )

Definition at line 662 of file G4ITNavigator1.cc.

 {
     fpSaveState = (G4SaveNavigatorState*) navState;
     if(navState) RestoreSavedState();
 }

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void G4ITNavigator1::SetPushVerbosity ( G4bool mode )

inline

void G4ITNavigator1::SetSavedState ( )

Definition at line 683 of file G4ITNavigator1.cc.

 {
     // !>
     // This check can be avoid if instead, at every first step of a track,
     // the IT tracking uses NewNavigatorSate
     // The normal tracking would just call once NewNavigatorState() before tracking
 
 //    if(fpSaveState == 0)
 //        fpSaveState = new G4SaveNavigatorState;
     // <!
 
   // fSaveExitNormal = fExitNormal;
   fpSaveState->sExitNormal = fExitNormal;
   fpSaveState->sValidExitNormal = fValidExitNormal;
   fpSaveState->sExiting = fExiting;
   fpSaveState->sEntering = fEntering;
 
   fpSaveState->spBlockedPhysicalVolume = fBlockedPhysicalVolume;
   fpSaveState->sBlockedReplicaNo = fBlockedReplicaNo,
 
   fpSaveState->sLastStepWasZero = fLastStepWasZero;
 
   // !>
   fpSaveState->sPreviousSftOrigin = fPreviousSftOrigin;
   fpSaveState->sPreviousSafety = fPreviousSafety;
   fpSaveState->sNumberZeroSteps = fNumberZeroSteps;
   fpSaveState->sLocatedOnEdge = fLocatedOnEdge;
   fpSaveState->sWasLimitedByGeometry= fWasLimitedByGeometry;
   fpSaveState->sPushed=fPushed;
   fpSaveState->sNumberZeroSteps=fNumberZeroSteps;
   fpSaveState->sEnteredDaughter = fEnteredDaughter;
   fpSaveState->sExitedMother = fExitedMother;
 
   fpSaveState->sLastLocatedPointLocal = fLastLocatedPointLocal;
   fpSaveState->sLocatedOutsideWorld = fLocatedOutsideWorld;
   // <!
 }

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void G4ITNavigator1::SetupHierarchy ( )

protectedvirtual

Definition at line 1298 of file G4ITNavigator1.cc.

 {
   G4int i;
   const G4int cdepth = fHistory.GetDepth();
   G4VPhysicalVolume *current;
   G4VSolid *pSolid;
   G4VPVParameterisation *pParam;
 
   for ( i=1; i<=cdepth; i++ )
   {
     current = fHistory.GetVolume(i);
     switch ( fHistory.GetVolumeType(i) )
     {
       case kNormal:
         break;
       case kReplica:
         freplicaNav.ComputeTransformation(fHistory.GetReplicaNo(i), current);
         break;
       case kParameterised:
         G4int replicaNo;
         pParam = current->GetParameterisation();
         replicaNo = fHistory.GetReplicaNo(i);
         pSolid = pParam->ComputeSolid(replicaNo, current);
 
         // Set up dimensions & transform in solid/physical volume
         //
         pSolid->ComputeDimensions(pParam, replicaNo, current);
         pParam->ComputeTransformation(replicaNo, current);
 
         G4TouchableHistory touchable( fHistory );
         touchable.MoveUpHistory();  // move up to the parent level
       
         // Set up the correct solid and material in Logical Volume
         //
         G4LogicalVolume *pLogical = current->GetLogicalVolume();
         pLogical->SetSolid( pSolid );
         pLogical->UpdateMaterial( pParam ->
           ComputeMaterial(replicaNo, current, &touchable) );
         break;
     }
   }
 }

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void G4ITNavigator1::SetVerboseLevel ( G4int level )

inline

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void G4ITNavigator1::SetWorldVolume ( G4VPhysicalVolume * pWorld )

inline

G4int G4ITNavigator1::SeverityOfZeroStepping ( G4int * noZeroSteps ) const

inline

EVolume G4ITNavigator1::VolumeType ( const G4VPhysicalVolume * pVol ) const

inlineprotected

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Friends And Related Function Documentation

std::ostream& operator<<	(	std::ostream &	os,
		const G4ITNavigator1 &	n
	)

friend

Definition at line 2007 of file G4ITNavigator1.cc.

 {
   //  Old version did only the following:
   // os << "Current History: " << G4endl << n.fHistory;
   //  Old behaviour is recovered for fVerbose = 0
   
   // Adapted from G4ITNavigator1::PrintState() const
 
   G4int oldcoutPrec = os.precision(4);
   if( n.fVerbose >= 4 )
   {
     os << "The current state of G4ITNavigator1 is: " << G4endl;
     os << "  ValidExitNormal= " << n.fValidExitNormal << G4endl
     << "  ExitNormal     = " << n.fExitNormal      << G4endl
     << "  Exiting        = " << n.fExiting         << G4endl
     << "  Entering       = " << n.fEntering        << G4endl
     << "  BlockedPhysicalVolume= " ;
     if (n.fBlockedPhysicalVolume==0)
       os << "None";
     else
       os << n.fBlockedPhysicalVolume->GetName();
     os << G4endl
     << "  BlockedReplicaNo     = " <<  n.fBlockedReplicaNo       << G4endl
     << "  LastStepWasZero      = " <<   n.fLastStepWasZero       << G4endl
     << G4endl;
   }
   if( ( 1 < n.fVerbose) && (n.fVerbose < 4) )
   {
     os << G4endl; // Make sure to line up
     os << std::setw(30) << " ExitNormal "  << " "
     << std::setw( 5) << " Valid "       << " "
     << std::setw( 9) << " Exiting "     << " "
     << std::setw( 9) << " Entering"     << " "
     << std::setw(15) << " Blocked:Volume "  << " "
     << std::setw( 9) << " ReplicaNo"        << " "
     << std::setw( 8) << " LastStepZero  "   << " "
     << G4endl;
     os << "( " << std::setw(7) << n.fExitNormal.x()
     << ", " << std::setw(7) << n.fExitNormal.y()
     << ", " << std::setw(7) << n.fExitNormal.z() << " ) "
     << std::setw( 5)  << n.fValidExitNormal  << " "
     << std::setw( 9)  << n.fExiting          << " "
     << std::setw( 9)  << n.fEntering         << " ";
     if ( n.fBlockedPhysicalVolume==0 )
       { os << std::setw(15) << "None"; }
     else
       { os << std::setw(15)<< n.fBlockedPhysicalVolume->GetName(); }
     os << std::setw( 9)  << n.fBlockedReplicaNo  << " "
     << std::setw( 8)  << n.fLastStepWasZero   << " "
     << G4endl;
   }
   if( n.fVerbose > 2 )
   {
     os.precision(8);
     os << " Current Localpoint = " << n.fLastLocatedPointLocal << G4endl;
     os << " PreviousSftOrigin  = " << n.fPreviousSftOrigin << G4endl;
     os << " PreviousSafety     = " << n.fPreviousSafety << G4endl;
   }
   if( n.fVerbose > 3 || n.fVerbose == 0 )
   {
     os << "Current History: " << G4endl << n.fHistory;
   }
     
   os.precision(oldcoutPrec);
   return os;
 }

Member Data Documentation

G4bool G4ITNavigator1::fEnteredDaughter

protected

Definition at line 379 of file G4ITNavigator1.hh.

G4bool G4ITNavigator1::fExitedMother

protected

Definition at line 385 of file G4ITNavigator1.hh.

G4NavigationHistory G4ITNavigator1::fHistory

protected

Definition at line 375 of file G4ITNavigator1.hh.

G4ThreeVector G4ITNavigator1::fLastStepEndPointLocal

protected

Definition at line 395 of file G4ITNavigator1.hh.

const G4int G4ITNavigator1::fMaxNav = 8

static

Definition at line 94 of file G4ITNavigator1.hh.

G4ThreeVector G4ITNavigator1::fStepEndPoint

protected

Definition at line 392 of file G4ITNavigator1.hh.

G4int G4ITNavigator1::fVerbose

protected

Definition at line 399 of file G4ITNavigator1.hh.

G4bool G4ITNavigator1::fWasLimitedByGeometry

protected

Definition at line 389 of file G4ITNavigator1.hh.

G4double G4ITNavigator1::kCarTolerance

protected

Definition at line 368 of file G4ITNavigator1.hh.

The documentation for this class was generated from the following files:

geant4.10.03.p01/source/processes/electromagnetic/dna/management/include/G4ITNavigator1.hh
geant4.10.03.p01/source/processes/electromagnetic/dna/management/src/G4ITNavigator1.cc

Public Member Functions

Static Public Attributes

Protected Member Functions

Protected Attributes

Friends

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Friends And Related Function Documentation

Member Data Documentation