G4ITNavigator Class Reference

#include <G4ITNavigator.hh>

Public Member Functions
	G4ITNavigator ()
virtual	~G4ITNavigator ()
G4ITNavigatorState_Lock *	GetNavigatorState ()
void	SetNavigatorState (G4ITNavigatorState_Lock *)
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=false)
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)

Protected Member Functions
G4ThreeVector	ComputeLocalPoint (const G4ThreeVector &rGlobPoint) const
G4ThreeVector	ComputeLocalAxis (const G4ThreeVector &pVec) const
virtual void	ResetState ()
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 G4ITNavigator &n)

Detailed Description

Definition at line 90 of file G4ITNavigator.hh.

Constructor & Destructor Documentation

G4ITNavigator()

G4ITNavigator::G4ITNavigator

(

)

Definition at line 58 of file G4ITNavigator.cc.

  : fWasLimitedByGeometry(false), fVerbose(0),
    fTopPhysical(0), fCheck(false), fPushed(false), fWarnPush(true)
{
  fActive= false; 
  fLastTriedStepComputation= false;
  ResetStackAndState();
 
  fActionThreshold_NoZeroSteps  = 10; 
  fAbandonThreshold_NoZeroSteps = 25; 
 
  kCarTolerance = G4GeometryTolerance::GetInstance()->GetSurfaceTolerance();
  fregularNav.SetNormalNavigation( &fnormalNav );
 
  fStepEndPoint = G4ThreeVector( kInfinity, kInfinity, kInfinity ); 
  fLastStepEndPointLocal = G4ThreeVector( kInfinity, kInfinity, kInfinity ); 
 
  fpSaveState = 0;
 
  // this->SetVerboseLevel(3);
  // this->CheckMode(true);
}

~G4ITNavigator()

G4ITNavigator::~G4ITNavigator ( )

virtual

Definition at line 115 of file G4ITNavigator.cc.

{;}

Member Function Documentation

Activate()

void G4ITNavigator::Activate ( G4bool  flag )

inline

CharacteriseDaughters()

EVolume G4ITNavigator::CharacteriseDaughters ( const G4LogicalVolume *  pLog ) const

inlineprotected

Referenced by ComputeSafety(), ComputeStep(), GetLocalExitNormal(), LocateGlobalPointAndSetup(), and LocateGlobalPointWithinVolume().

CheckMode()

void G4ITNavigator::CheckMode ( G4bool  mode )

inline

CheckNextStep()

G4double G4ITNavigator::CheckNextStep	(	const G4ThreeVector &	pGlobalPoint,
		const G4ThreeVector &	pDirection,
		const G4double	pCurrentProposedStepLength,
		G4double &	pNewSafety
	)

Definition at line 1087 of file G4ITNavigator.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; 
}

ComputeLocalAxis()

G4ThreeVector G4ITNavigator::ComputeLocalAxis ( const G4ThreeVector &  pVec ) const

inlineprotected

Referenced by ComputeStep().

ComputeLocalPoint()

G4ThreeVector G4ITNavigator::ComputeLocalPoint ( const G4ThreeVector &  rGlobPoint ) const

inlineprotected

Referenced by ComputeSafety(), ComputeStep(), and LocateGlobalPointWithinVolume().

ComputeSafety()

G4double G4ITNavigator::ComputeSafety ( const G4ThreeVector &  globalpoint, const G4double  pProposedMaxLength = DBL_MAX, const G4bool  keepState = false  )

virtual

Definition at line 1441 of file G4ITNavigator.cc.

{
  G4double newSafety = 0.0;
 
#ifdef G4DEBUG_NAVIGATION
  G4int oldcoutPrec = G4cout.precision(8);
  if( fVerbose > 0 )
  {
    G4cout << "*** G4ITNavigator::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(); }
  //  fLastTriedStepComputation= true;   -- this method is NOT computing the Step size
 
  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 << "  G4ITNavigator::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 )
          {
            newSafety=fvoxelNav.ComputeSafety(localPoint,fHistory,pMaxLength);
          }
          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("G4ITNavigator::ComputeSafety()", "NotApplicable",
                      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 << "    G4ITNavigator::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;
}

Referenced by G4ITTransportation::AlongStepGetPhysicalInteractionLength().

ComputeStep()

G4double G4ITNavigator::ComputeStep ( const G4ThreeVector &  pGlobalPoint, const G4ThreeVector &  pDirection, const G4double  pCurrentProposedStepLength, G4double &  pNewSafety  )

virtual

Definition at line 725 of file G4ITNavigator.cc.

{
  G4ThreeVector localDirection = ComputeLocalAxis(pDirection);
  G4double Step = kInfinity;
  G4VPhysicalVolume  *motherPhysical = fHistory.GetTopVolume();
  G4LogicalVolume *motherLogical = motherPhysical->GetLogicalVolume();
 
  static G4int sNavCScalls=0;
  sNavCScalls++;
 
  fLastTriedStepComputation= true; 
 
#ifdef G4VERBOSE
  if( fVerbose > 0 )
  {
    G4cout << "*** G4ITNavigator::ComputeStep: ***" << G4endl;
    G4cout << "    Volume = " << motherPhysical->GetName() 
           << " - Proposed step length = " << pCurrentProposedStepLength
           << G4endl; 
#ifdef G4DEBUG_NAVIGATION
    if( fVerbose >= 4 ) 
    {
      G4cout << "  Called with the arguments: " << G4endl
             << "  Globalpoint = " << std::setw(25) << pGlobalpoint << G4endl
             << "  Direction   = " << std::setw(25) << pDirection << G4endl;
      G4cout << "  ---- Upon entering :" << 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("G4ITNavigator::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("G4ITNavigator::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;                          // still ok to set it ??
  }
 
  // 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 << "G4ITNavigator::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("G4ITNavigator::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("G4ITNavigator::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)
    {
      // Convention: fExitNormal is in the 'grand-mother' coordinate system
      //
      fGrandMotherExitNormal= fExitNormal;
    }
    else
    {  
      // We must calculate the normal anyway (in order to have it if requested)
      //
      G4ThreeVector finalLocalPoint =
        fLastLocatedPointLocal + localDirection*Step;
 
      // Now fGrandMotherExitNormal is in the 'grand-mother' coordinate system
      //
      fGrandMotherExitNormal =
        motherLogical->GetSolid()->SurfaceNormal(finalLocalPoint);
 
      const G4RotationMatrix* mRot = motherPhysical->GetRotation();
      if( mRot )
      { 
        fGrandMotherExitNormal *= (*mRot).inverse();
      }
      //  Do not set fValidExitNormal -- this signifies that the solid is convex!
    }
  }
  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 << G4endl;
    if( Step == kInfinity )
    {
      G4cout << "    Original proposed step = "
             << pCurrentProposedStepLength << G4endl;
    }
    G4cout << "    Safety = " << pNewSafety << G4endl;
  }
#endif
 
  return Step;
}

Referenced by G4ITTransportation::AlongStepGetPhysicalInteractionLength(), and CheckNextStep().

CreateGRSSolid()

G4GRSSolid * G4ITNavigator::CreateGRSSolid ( ) const

inline

CreateGRSVolume()

G4GRSVolume * G4ITNavigator::CreateGRSVolume ( ) const

inline

CreateTouchableHistory() [1/2]

G4TouchableHistory * G4ITNavigator::CreateTouchableHistory ( ) const

inline

Referenced by CreateTouchableHistoryHandle(), G4ITStepProcessor::InitDefineStep(), and G4ITStepProcessor::SetInitialStep().

CreateTouchableHistory() [2/2]

G4TouchableHistory * G4ITNavigator::CreateTouchableHistory ( const G4NavigationHistory *  ) const

inline

CreateTouchableHistoryHandle()

G4TouchableHistoryHandle G4ITNavigator::CreateTouchableHistoryHandle ( ) const

virtual

Definition at line 1573 of file G4ITNavigator.cc.

{
  return G4TouchableHistoryHandle( CreateTouchableHistory() );
}

EnableBestSafety()

void G4ITNavigator::EnableBestSafety ( G4bool  value = false )

inline

EnteredDaughterVolume()

G4bool G4ITNavigator::EnteredDaughterVolume ( ) const

inline

Referenced by GetLocalExitNormal(), and G4ITTransportation::PostStepDoIt().

ExitedMotherVolume()

G4bool G4ITNavigator::ExitedMotherVolume ( ) const

inline

Referenced by G4ITTransportation::PostStepDoIt().

GetCurrentLocalCoordinate()

G4ThreeVector G4ITNavigator::GetCurrentLocalCoordinate ( ) const

inline

GetDaughtersRegularStructureId()

G4int G4ITNavigator::GetDaughtersRegularStructureId ( const G4LogicalVolume *  pLog ) const

inlineprotected

Referenced by ComputeSafety(), ComputeStep(), LocateGlobalPointAndSetup(), and LocateGlobalPointWithinVolume().

GetGlobalExitNormal()

G4ThreeVector G4ITNavigator::GetGlobalExitNormal ( const G4ThreeVector &  point, G4bool *  valid  )

virtual

Definition at line 1418 of file G4ITNavigator.cc.

{
  G4bool         validNormal;
  G4ThreeVector  localNormal, globalNormal;
 
  localNormal = GetLocalExitNormalAndCheck( IntersectPointGlobal, &validNormal);
  *pValidNormal = validNormal; 
  G4AffineTransform localToGlobal = GetLocalToGlobalTransform(); 
  globalNormal = localToGlobal.TransformAxis( localNormal );
  
  return globalNormal;
}

GetGlobalToLocalTransform()

const G4AffineTransform & G4ITNavigator::GetGlobalToLocalTransform ( ) const

inline

Referenced by GetLocalExitNormalAndCheck().

GetLocalExitNormal()

G4ThreeVector G4ITNavigator::GetLocalExitNormal ( G4bool *  valid )

virtual

Definition at line 1200 of file G4ITNavigator.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.
 
        if( CharacteriseDaughters(candidateLogical) != kReplica )
        {
          // 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;
          }
          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("G4ITNavigator::GetLocalExitNormal()", "GeomNav1001",
                          JustWarning, message);
            }
#endif
          }
          *valid = onSurface;   //   was =true;
        }
        else
        {
          *valid = false;  // TODO: Need Separate code for replica!!!!
#ifdef G4DEBUG_NAVIGATION
          G4Exception("G4ITNavigator::GetLocalExitNormal()", "GeomNav0001",
                      FatalException, 
                      "Local normal not (yet) available for replica volumes.");
#endif 
        }
      }
    }
    else if ( fExiting ) 
    {
        ExitNormal = fGrandMotherExitNormal;
        *valid = true;
    }
    else  // ie  ( fBlockedPhysicalVolume == 0 )
    {
      *valid = false;
    }
  }
  else 
  {
    if ( EnteredDaughterVolume() )
    {
      ExitNormal= -(fHistory.GetTopVolume()->GetLogicalVolume()->
                    GetSolid()->SurfaceNormal(fLastLocatedPointLocal));
      *valid = true;
    }
    else
    {
      if( fExitedMother )
      {
        ExitNormal = fGrandMotherExitNormal;
        *valid = true;
      }
      else  // We are not at a boundary. ExitNormal remains (0,0,0)
      {
        *valid = false;
      }
    }
  }
  return ExitNormal;
}

Referenced by GetLocalExitNormalAndCheck().

GetLocalExitNormalAndCheck()

G4ThreeVector G4ITNavigator::GetLocalExitNormalAndCheck ( const G4ThreeVector &  point, G4bool *  valid  )

virtual

Definition at line 1392 of file G4ITNavigator.cc.

{
  G4ThreeVector ExpectedBoundaryPointLocal;
 
  // Check Current point against expected 'local' value
  //
  if ( fLastTriedStepComputation ) 
  {
     const G4AffineTransform& GlobalToLocal= GetGlobalToLocalTransform(); 
     ExpectedBoundaryPointLocal =
       GlobalToLocal.TransformPoint( ExpectedBoundaryPointGlobal ); 
  }
 
  return GetLocalExitNormal( pValid); 
}

Referenced by GetGlobalExitNormal().

GetLocalToGlobalTransform()

const G4AffineTransform G4ITNavigator::GetLocalToGlobalTransform ( ) const

inline

Referenced by GetGlobalExitNormal().

GetMotherToDaughterTransform()

G4AffineTransform G4ITNavigator::GetMotherToDaughterTransform	(	G4VPhysicalVolume *	dVolume,
		G4int	dReplicaNo,
		EVolume	dVolumeType
	)

Definition at line 1347 of file G4ITNavigator.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("G4ITNavigator::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(); 
}

Referenced by GetLocalExitNormal().

GetNavigatorState()

G4ITNavigatorState_Lock * G4ITNavigator::GetNavigatorState

(

)

Definition at line 594 of file G4ITNavigator.cc.

{
    SetSavedState();
    return fpSaveState;
}

Referenced by G4ITStepProcessor::DoDefinePhysicalStepLength(), and G4ITStepProcessor::DoStepping().

GetVerboseLevel()

G4int G4ITNavigator::GetVerboseLevel ( ) const

inline

GetWorldVolume()

G4VPhysicalVolume * G4ITNavigator::GetWorldVolume ( ) const

inline

IsActive()

G4bool G4ITNavigator::IsActive ( ) const

inline

IsCheckModeActive()

G4bool G4ITNavigator::IsCheckModeActive ( ) const

inline

LocateGlobalPointAndSetup()

G4VPhysicalVolume * G4ITNavigator::LocateGlobalPointAndSetup ( const G4ThreeVector &  point, const G4ThreeVector *  direction = 0, const G4bool  pRelativeSearch = true, const G4bool  ignoreDirection = true  )

virtual

Definition at line 151 of file G4ITNavigator.cc.

{
  G4bool notKnownContained=true, noResult;
  G4VPhysicalVolume *targetPhysical;
  G4LogicalVolume *targetLogical;
  G4VSolid *targetSolid=0;
  G4ThreeVector localPoint, globalDirection;
  EInside insideCode;
  
  G4bool considerDirection = (!ignoreDirection) || fLocatedOnEdge;
  fLastTriedStepComputation= false;   
 
  if( considerDirection && pGlobalDirection != 0 )
  {
    globalDirection=*pGlobalDirection;
  }
 
#ifdef G4VERBOSE
  if( fVerbose > 2 )
  {
    G4int oldcoutPrec = G4cout.precision(8);
    G4cout << "*** G4ITNavigator::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
  //
  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 << "*** G4ITNavigator::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 )
    {
      if ( fHistory.GetDepth() )
      {
        fBlockedPhysicalVolume = fHistory.GetTopVolume();
        fBlockedReplicaNo = fHistory.GetTopReplicaNo();
        fHistory.BackLevel();
        fExiting = false;
      }
      else
      {
        fLastLocatedPointLocal = localPoint;
        fLocatedOutsideWorld = true;
        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);
          if ( fHistory.GetTopVolumeType()!=kReplica )
          {
            G4ThreeVector normal = targetSolid->SurfaceNormal(localPoint);
            directionExiting = normal.dot(localDirection) > 0.0;
            isExiting = isExiting || directionExiting;
          }
        }
        if( isExiting )
        {
          if ( fHistory.GetDepth() )
          {
            fBlockedPhysicalVolume = fHistory.GetTopVolume();
            fBlockedReplicaNo = fHistory.GetTopReplicaNo();
            fHistory.BackLevel();
            //
            // Still on surface but exited volume not necessarily convex
            //
            fValidExitNormal = false;
          } 
          else
          {
            fLastLocatedPointLocal = localPoint;
            fLocatedOutsideWorld = true;
            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;
#ifdef G4DEBUG_NAVIGATION
      if( fVerbose > 2 )
      { 
         G4VPhysicalVolume* enteredPhysical = fHistory.GetTopVolume();
         G4cout << "*** G4ITNavigator::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();
#ifdef G4DEBUG_NAVIGATION
    G4cout << "Upon exiting LocateGlobalPointAndSetup():" << G4endl;
    G4cout << "    History = " << G4endl << fHistory << G4endl << G4endl;
#endif
    G4cout.precision(oldcoutPrec);
  }
#endif
 
  fLocatedOutsideWorld= false;
 
  return targetPhysical;
}

Referenced by ComputeStep(), ResetHierarchyAndLocate(), and G4ITStepProcessor::SetInitialStep().

LocateGlobalPointAndUpdateTouchable() [1/2]

void G4ITNavigator::LocateGlobalPointAndUpdateTouchable ( const G4ThreeVector &  position, const G4ThreeVector &  direction, G4VTouchable *  touchableToUpdate, const G4bool  RelativeSearch = true  )

inline

LocateGlobalPointAndUpdateTouchable() [2/2]

void G4ITNavigator::LocateGlobalPointAndUpdateTouchable ( const G4ThreeVector &  position, G4VTouchable *  touchableToUpdate, const G4bool  RelativeSearch = true  )

inline

LocateGlobalPointAndUpdateTouchableHandle()

void G4ITNavigator::LocateGlobalPointAndUpdateTouchableHandle ( const G4ThreeVector &  position, const G4ThreeVector &  direction, G4TouchableHandle &  oldTouchableToUpdate, const G4bool  RelativeSearch = true  )

inline

LocateGlobalPointWithinVolume()

void G4ITNavigator::LocateGlobalPointWithinVolume ( const G4ThreeVector &  position )

virtual

Definition at line 531 of file G4ITNavigator.cc.

{  
   fLastLocatedPointLocal = ComputeLocalPoint(pGlobalpoint);
   fLastTriedStepComputation= false;
 
#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("G4ITNavigator::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
}

Referenced by ComputeSafety(), ComputeStep(), and G4ITTransportation::PostStepDoIt().

NetRotation()

G4RotationMatrix G4ITNavigator::NetRotation ( ) const

inline

NetTranslation()

G4ThreeVector G4ITNavigator::NetTranslation ( ) const

inline

NewNavigatorState()

void G4ITNavigator::NewNavigatorState

(

)

Definition at line 606 of file G4ITNavigator.cc.

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

Referenced by G4ITStepProcessor::InitDefineStep().

PrintState()

void G4ITNavigator::PrintState

(

)

const

Definition at line 1582 of file G4ITNavigator.cc.

{
  G4int oldcoutPrec = G4cout.precision(4);
  if( fVerbose == 4 )
  {
    G4cout << "The current state of G4ITNavigator 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 << 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);
}

Referenced by ComputeSafety(), ComputeStep(), and LocateGlobalPointAndSetup().

ResetHierarchyAndLocate()

G4VPhysicalVolume * G4ITNavigator::ResetHierarchyAndLocate ( const G4ThreeVector &  point, const G4ThreeVector &  direction, const G4TouchableHistory &  h  )

virtual

Definition at line 123 of file G4ITNavigator.cc.

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

Referenced by G4ITStepProcessor::DoStepping(), G4ITStepProcessor::InitDefineStep(), and G4ITStepProcessor::SetInitialStep().

ResetStackAndState()

void G4ITNavigator::ResetStackAndState ( )

inline

Referenced by G4ITNavigator(), and LocateGlobalPointAndSetup().

ResetState()

void G4ITNavigator::ResetState ( )

protectedvirtual

Definition at line 1116 of file G4ITNavigator.cc.

{
  fWasLimitedByGeometry  = false;
  fEntering              = false;
  fExiting               = false;
  fLocatedOnEdge         = false;
  fLastStepWasZero       = false;
  fEnteredDaughter       = false;
  fExitedMother          = false;
  fPushed                = false;
 
  fValidExitNormal       = false;
  fExitNormal            = 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;
}

Referenced by NewNavigatorState(), and ResetHierarchyAndLocate().

RestoreSavedState()

void G4ITNavigator::RestoreSavedState

(

)

Definition at line 665 of file G4ITNavigator.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;
  // <!
}

Referenced by CheckNextStep(), ComputeSafety(), and SetNavigatorState().

SetGeometricallyLimitedStep()

void G4ITNavigator::SetGeometricallyLimitedStep ( )

inline

Referenced by G4ITTransportation::PostStepDoIt().

SetNavigatorState()

void G4ITNavigator::SetNavigatorState

(

G4ITNavigatorState_Lock *

navState

)

Definition at line 600 of file G4ITNavigator.cc.

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

Referenced by G4ITStepProcessor::DoDefinePhysicalStepLength(), G4ITStepProcessor::DoStepping(), and G4ITStepProcessor::InitDefineStep().

SetPushVerbosity()

void G4ITNavigator::SetPushVerbosity ( G4bool  mode )

inline

SetSavedState()

void G4ITNavigator::SetSavedState

(

)

Definition at line 621 of file G4ITNavigator.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;
  // <!
}

Referenced by CheckNextStep(), ComputeSafety(), and GetNavigatorState().

SetupHierarchy()

void G4ITNavigator::SetupHierarchy ( )

protectedvirtual

Definition at line 1150 of file G4ITNavigator.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;
    }
  }
}

Referenced by ResetHierarchyAndLocate().

SetVerboseLevel()

void G4ITNavigator::SetVerboseLevel ( G4int  level )

inline

SetWorldVolume()

void G4ITNavigator::SetWorldVolume ( G4VPhysicalVolume *  pWorld )

inline

SeverityOfZeroStepping()

G4int G4ITNavigator::SeverityOfZeroStepping ( G4int *  noZeroSteps ) const

inline

VolumeType()

EVolume G4ITNavigator::VolumeType ( const G4VPhysicalVolume *  pVol ) const

inlineprotected

Referenced by GetLocalExitNormal(), and LocateGlobalPointAndSetup().

Friends And Related Function Documentation

operator<<

std::ostream & operator<< ( std::ostream &  os, const G4ITNavigator &  n  )

friend

Definition at line 1743 of file G4ITNavigator.cc.

{
  os << "Current History: " << G4endl << n.fHistory;
  return os;
}

Member Data Documentation

fEnteredDaughter

G4bool G4ITNavigator::fEnteredDaughter

protected

Definition at line 369 of file G4ITNavigator.hh.

Referenced by ComputeSafety(), ComputeStep(), LocateGlobalPointAndSetup(), LocateGlobalPointWithinVolume(), ResetState(), RestoreSavedState(), and SetSavedState().

fExitedMother

G4bool G4ITNavigator::fExitedMother

protected

Definition at line 375 of file G4ITNavigator.hh.

Referenced by ComputeSafety(), ComputeStep(), GetLocalExitNormal(), LocateGlobalPointAndSetup(), LocateGlobalPointWithinVolume(), ResetState(), RestoreSavedState(), and SetSavedState().

fHistory

G4NavigationHistory G4ITNavigator::fHistory

protected

Definition at line 365 of file G4ITNavigator.hh.

Referenced by ComputeSafety(), ComputeStep(), GetLocalExitNormal(), LocateGlobalPointAndSetup(), LocateGlobalPointWithinVolume(), ResetHierarchyAndLocate(), and SetupHierarchy().

fLastStepEndPointLocal

G4ThreeVector G4ITNavigator::fLastStepEndPointLocal

protected

Definition at line 385 of file G4ITNavigator.hh.

Referenced by ComputeStep(), G4ITNavigator(), and GetLocalExitNormal().

fStepEndPoint

G4ThreeVector G4ITNavigator::fStepEndPoint

protected

Definition at line 382 of file G4ITNavigator.hh.

Referenced by ComputeSafety(), ComputeStep(), and G4ITNavigator().

fVerbose

G4int G4ITNavigator::fVerbose

protected

Definition at line 389 of file G4ITNavigator.hh.

Referenced by ComputeSafety(), ComputeStep(), GetLocalExitNormal(), LocateGlobalPointAndSetup(), LocateGlobalPointWithinVolume(), and PrintState().

fWasLimitedByGeometry

G4bool G4ITNavigator::fWasLimitedByGeometry

protected

Definition at line 379 of file G4ITNavigator.hh.

Referenced by LocateGlobalPointAndSetup(), ResetState(), RestoreSavedState(), and SetSavedState().

kCarTolerance

G4double G4ITNavigator::kCarTolerance

protected

Definition at line 358 of file G4ITNavigator.hh.

Referenced by ComputeSafety(), ComputeStep(), G4ITNavigator(), and GetLocalExitNormal().

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

• G4ITNavigator.hh
• G4ITNavigator.cc