G4VoxelNavigation Class Reference

#include <G4VoxelNavigation.hh>

Inheritance diagram for G4VoxelNavigation:

Public Member Functions
	G4VoxelNavigation ()
virtual	~G4VoxelNavigation ()
G4SmartVoxelNode *	VoxelLocate (G4SmartVoxelHeader *pHead, const G4ThreeVector &localPoint)
virtual G4bool	LevelLocate (G4NavigationHistory &history, const G4VPhysicalVolume *blockedVol, const G4int blockedNum, const G4ThreeVector &globalPoint, const G4ThreeVector *globalDirection, const G4bool pLocatedOnEdge, G4ThreeVector &localPoint)
virtual G4double	ComputeStep (const G4ThreeVector &globalPoint, const G4ThreeVector &globalDirection, const G4double currentProposedStepLength, G4double &newSafety, G4NavigationHistory &history, G4bool &validExitNormal, G4ThreeVector &exitNormal, G4bool &exiting, G4bool &entering, G4VPhysicalVolume *(*pBlockedPhysical), G4int &blockedReplicaNo)
virtual G4double	ComputeSafety (const G4ThreeVector &globalpoint, const G4NavigationHistory &history, const G4double pMaxLength=DBL_MAX)
G4int	GetVerboseLevel () const
void	SetVerboseLevel (G4int level)
void	CheckMode (G4bool mode)
void	EnableBestSafety (G4bool flag=false)

Protected Member Functions
G4double	ComputeVoxelSafety (const G4ThreeVector &localPoint) const
G4bool	LocateNextVoxel (const G4ThreeVector &localPoint, const G4ThreeVector &localDirection, const G4double currentStep)
G4SmartVoxelNode *	VoxelLocateLight (G4SmartVoxelHeader *pHead, const G4ThreeVector &localPoint) const

Protected Attributes
G4BlockingList	fBList
G4int	fVoxelDepth
std::vector< EAxis >	fVoxelAxisStack
std::vector< G4int >	fVoxelNoSlicesStack
std::vector< G4double >	fVoxelSliceWidthStack
std::vector< G4int >	fVoxelNodeNoStack
std::vector< G4SmartVoxelHeader * >	fVoxelHeaderStack
G4SmartVoxelNode *	fVoxelNode
G4VoxelSafety *	fpVoxelSafety
G4bool	fCheck
G4bool	fBestSafety
G4NavigationLogger *	fLogger

Detailed Description

Definition at line 67 of file G4VoxelNavigation.hh.

Constructor & Destructor Documentation

G4VoxelNavigation::G4VoxelNavigation

(

)

Definition at line 44 of file G4VoxelNavigation.cc.

References fLogger, and fpVoxelSafety.

  : fBList(), fVoxelDepth(-1),
    fVoxelAxisStack(kNavigatorVoxelStackMax,kXAxis),
    fVoxelNoSlicesStack(kNavigatorVoxelStackMax,0),
    fVoxelSliceWidthStack(kNavigatorVoxelStackMax,0.),
    fVoxelNodeNoStack(kNavigatorVoxelStackMax,0),
    fVoxelHeaderStack(kNavigatorVoxelStackMax,(G4SmartVoxelHeader*)0),
    fVoxelNode(0), fpVoxelSafety(0), fCheck(false), fBestSafety(false)
{
  fLogger = new G4NavigationLogger("G4VoxelNavigation");
  fpVoxelSafety = new G4VoxelSafety (); 
}

G4VoxelNavigation::~G4VoxelNavigation ( )

virtual

Definition at line 61 of file G4VoxelNavigation.cc.

References fLogger, and fpVoxelSafety.

{
  delete fpVoxelSafety;
  delete fLogger;
}

Member Function Documentation

void G4VoxelNavigation::CheckMode ( G4bool  mode )

inline

G4double G4VoxelNavigation::ComputeSafety ( const G4ThreeVector &  globalpoint, const G4NavigationHistory &  history, const G4double  pMaxLength = DBL_MAX  )

virtual

Reimplemented in G4ParameterisedNavigation.

Definition at line 547 of file G4VoxelNavigation.cc.

References G4VoxelSafety::ComputeSafety(), G4NavigationLogger::ComputeSafetyLog(), ComputeVoxelSafety(), G4VSolid::DistanceToIn(), G4VSolid::DistanceToOut(), fBestSafety, fCheck, fLogger, fpVoxelSafety, fVoxelNode, G4endl, G4Exception(), G4VPhysicalVolume::GetCopyNo(), G4LogicalVolume::GetDaughter(), G4VSolid::GetEntityType(), G4VPhysicalVolume::GetLogicalVolume(), G4VSolid::GetName(), G4VPhysicalVolume::GetName(), G4SmartVoxelNode::GetNoContained(), G4VPhysicalVolume::GetRotation(), G4LogicalVolume::GetSolid(), G4NavigationHistory::GetTopVolume(), G4VPhysicalVolume::GetTranslation(), G4SmartVoxelNode::GetVolume(), G4VSolid::Inside(), G4AffineTransform::Invert(), JustWarning, kInside, and kOutside.

Referenced by G4Navigator::ComputeSafety(), and G4ITNavigator::ComputeSafety().

{
  G4VPhysicalVolume *motherPhysical, *samplePhysical;
  G4LogicalVolume *motherLogical;
  G4VSolid *motherSolid;
  G4double motherSafety, ourSafety;
  G4int sampleNo;
  G4SmartVoxelNode *curVoxelNode;
  G4int curNoVolumes, contentNo;
  G4double voxelSafety;

  motherPhysical = history.GetTopVolume();
  motherLogical = motherPhysical->GetLogicalVolume();
  motherSolid = motherLogical->GetSolid();

  if( fBestSafety )
  { 
    return fpVoxelSafety->ComputeSafety( localPoint,*motherPhysical,maxLength );
  }

  //
  // Compute mother safety
  //

  motherSafety = motherSolid->DistanceToOut(localPoint);
  ourSafety = motherSafety;                 // Working isotropic safety

  if( motherSafety == 0.0 )
  {
#ifdef G4DEBUG_NAVIGATION
    // Check that point is inside mother volume
    EInside  insideMother= motherSolid->Inside(localPoint);

    if( insideMother == kOutside )
    {
      G4ExceptionDescription message;
      message << "Safety method called for location outside current Volume." << G4endl
         << "Location for safety is Outside this volume. " << G4endl
         << "The approximate distance to the solid "
         << "(safety from outside) is: "
         << motherSolid->DistanceToIn( localPoint ) << G4endl;
      message << "  Problem occurred with physical volume: "
         << " Name: " << motherPhysical->GetName()
         << " Copy No: " << motherPhysical->GetCopyNo() << G4endl
         << "    Local Point = " << localPoint << G4endl;
      message << "  Description of solid: " << G4endl
            << *motherSolid << G4endl;
      G4Exception("G4VoxelNavigation::ComputeSafety()", "GeomNav0003",
                  JustWarning,  // FatalException,
                  message);
    }

    // Following check is NOT for an issue - it is only for information
    //  It is allowed that a solid gives approximate safety - even zero.
    //
    if( insideMother == kInside ) // && fVerbose )
    {
      G4ExceptionDescription messageIn;
      
      messageIn << " Point is Inside, but safety is Zero ."  << G4endl;
      messageIn << " Inexact safety for volume " << motherPhysical->GetName() << G4endl
             << "  Solid: Name= " << motherSolid->GetName()
             << "   Type= " << motherSolid->GetEntityType() << G4endl;
      messageIn << "  Local point= " << localPoint << G4endl;
      messageIn << "  Solid parameters: " << G4endl << *motherSolid << G4endl;
      G4Exception("G4VoxelNavigation::ComputeSafety()", "GeomNav0003",
                  JustWarning, messageIn);
    }
#endif
    // if( insideMother != kInside )
    return 0.0;
  }
   
#ifdef G4VERBOSE
  if( fCheck )
  {
    fLogger->ComputeSafetyLog (motherSolid, localPoint, motherSafety, true);
  }
#endif
  //
  // Compute daughter safeties
  //
  // Look only inside the current Voxel only (in the first version).
  //
  curVoxelNode = fVoxelNode;
  curNoVolumes = curVoxelNode->GetNoContained();

  for ( contentNo=curNoVolumes-1; contentNo>=0; contentNo-- )
  {
    sampleNo = curVoxelNode->GetVolume(contentNo);
    samplePhysical = motherLogical->GetDaughter(sampleNo);

    G4AffineTransform sampleTf(samplePhysical->GetRotation(),
                               samplePhysical->GetTranslation());
    sampleTf.Invert();
    const G4ThreeVector samplePoint =
                          sampleTf.TransformPoint(localPoint);
    const G4VSolid *sampleSolid     =
                          samplePhysical->GetLogicalVolume()->GetSolid();
    G4double sampleSafety = sampleSolid->DistanceToIn(samplePoint);
    if ( sampleSafety<ourSafety )
    {
      ourSafety = sampleSafety;
    }
#ifdef G4VERBOSE
    if( fCheck )
    {
      fLogger->ComputeSafetyLog (sampleSolid,samplePoint,sampleSafety,false);
    }
#endif
  }
  voxelSafety = ComputeVoxelSafety(localPoint);
  if ( voxelSafety<ourSafety )
  {
    ourSafety = voxelSafety;
  }
  return ourSafety;
}

G4double G4VoxelNavigation::ComputeStep ( const G4ThreeVector &  globalPoint, const G4ThreeVector &  globalDirection, const G4double  currentProposedStepLength, G4double &  newSafety, G4NavigationHistory &  history, G4bool &  validExitNormal, G4ThreeVector &  exitNormal, G4bool &  exiting, G4bool &  entering, G4VPhysicalVolume **  pBlockedPhysical, G4int &  blockedReplicaNo  )

virtual

Reimplemented in G4ParameterisedNavigation.

Definition at line 72 of file G4VoxelNavigation.cc.

References G4NavigationLogger::AlongComputeStepLog(), G4BlockingList::BlockVolume(), ComputeVoxelSafety(), G4VSolid::DistanceToIn(), G4VSolid::DistanceToOut(), CLHEP::Hep3Vector::dot(), G4BlockingList::Enlarge(), fBList, fCheck, fLogger, fVoxelNode, G4LogicalVolume::GetDaughter(), G4VPhysicalVolume::GetLogicalVolume(), G4SmartVoxelNode::GetNoContained(), G4LogicalVolume::GetNoDaughters(), G4VPhysicalVolume::GetRotation(), G4LogicalVolume::GetSolid(), G4NavigationHistory::GetTopVolume(), G4VPhysicalVolume::GetTranslation(), G4SmartVoxelNode::GetVolume(), CLHEP::HepRotation::inverse(), G4AffineTransform::Invert(), G4BlockingList::IsBlocked(), LocateNextVoxel(), G4NavigationLogger::PostComputeStepLog(), G4NavigationLogger::PreComputeStepLog(), G4NavigationLogger::PrintDaughterLog(), and G4BlockingList::Reset().

Referenced by G4Navigator::ComputeStep(), and G4ITNavigator::ComputeStep().

{
  G4VPhysicalVolume *motherPhysical, *samplePhysical, *blockedExitedVol=0;
  G4LogicalVolume *motherLogical;
  G4VSolid *motherSolid;
  G4ThreeVector sampleDirection;
  G4double ourStep=currentProposedStepLength, motherSafety, ourSafety;
  G4int localNoDaughters, sampleNo;

  G4bool initialNode, noStep;
  G4SmartVoxelNode *curVoxelNode;
  G4int curNoVolumes, contentNo;
  G4double voxelSafety;

  motherPhysical = history.GetTopVolume();
  motherLogical = motherPhysical->GetLogicalVolume();
  motherSolid = motherLogical->GetSolid();

  //
  // Compute mother safety
  //

  motherSafety = motherSolid->DistanceToOut(localPoint);
  ourSafety = motherSafety;                 // Working isotropic safety
  
#ifdef G4VERBOSE
  if ( fCheck )
  {
    fLogger->PreComputeStepLog (motherPhysical, motherSafety, localPoint);
  }
#endif

  //
  // Compute daughter safeties & intersections
  //

  // Exiting normal optimisation
  //
  if ( exiting && validExitNormal )
  {
    if ( localDirection.dot(exitNormal)>=kMinExitingNormalCosine )
    {
      // Block exited daughter volume
      //
      blockedExitedVol = *pBlockedPhysical;
      ourSafety = 0;
    }
  }
  exiting = false;
  entering = false;

  localNoDaughters = motherLogical->GetNoDaughters();

  fBList.Enlarge(localNoDaughters);
  fBList.Reset();

  initialNode = true;
  noStep = true;

  while (noStep)
  {
    curVoxelNode = fVoxelNode;
    curNoVolumes = curVoxelNode->GetNoContained();
    for (contentNo=curNoVolumes-1; contentNo>=0; contentNo--)
    {
      sampleNo = curVoxelNode->GetVolume(contentNo);
      if ( !fBList.IsBlocked(sampleNo) )
      {
        fBList.BlockVolume(sampleNo);
        samplePhysical = motherLogical->GetDaughter(sampleNo);
        if ( samplePhysical!=blockedExitedVol )
        {
          G4AffineTransform sampleTf(samplePhysical->GetRotation(),
                                     samplePhysical->GetTranslation());
          sampleTf.Invert();
          const G4ThreeVector samplePoint =
                     sampleTf.TransformPoint(localPoint);
          const G4VSolid *sampleSolid     =
                     samplePhysical->GetLogicalVolume()->GetSolid();
          const G4double sampleSafety     =
                     sampleSolid->DistanceToIn(samplePoint);
#ifdef G4VERBOSE
          if( fCheck )
          {
            fLogger->PrintDaughterLog(sampleSolid,samplePoint,sampleSafety,0);
          }
#endif
          if ( sampleSafety<ourSafety )
          {
            ourSafety = sampleSafety;
          }
          if ( sampleSafety<=ourStep )
          {
            sampleDirection = sampleTf.TransformAxis(localDirection);
            G4double sampleStep =
                     sampleSolid->DistanceToIn(samplePoint, sampleDirection);
#ifdef G4VERBOSE
            if( fCheck )
            {
              fLogger->PrintDaughterLog(sampleSolid, samplePoint,
                                        sampleSafety, sampleStep);
            }
#endif
            if ( sampleStep<=ourStep )
            {
              ourStep = sampleStep;
              entering = true;
              exiting = false;
              *pBlockedPhysical = samplePhysical;
              blockedReplicaNo = -1;
#ifdef G4VERBOSE
              // Check to see that the resulting point is indeed in/on volume.
              // This check could eventually be made only for successful
              // candidate.

              if ( fCheck )
              {
                fLogger->AlongComputeStepLog (sampleSolid, samplePoint,
                  sampleDirection, localDirection, sampleSafety, sampleStep);
              }
#endif
            }
          }
        }
      }
    }
    if (initialNode)
    {
      initialNode = false;
      voxelSafety = ComputeVoxelSafety(localPoint);
      if ( voxelSafety<ourSafety )
      {
        ourSafety = voxelSafety;
      }
      if ( currentProposedStepLength<ourSafety )
      {
        // Guaranteed physics limited
        //      
        noStep = false;
        entering = false;
        exiting = false;
        *pBlockedPhysical = 0;
        ourStep = kInfinity;
      }
      else
      {
        //
        // Compute mother intersection if required
        //
        if ( motherSafety<=ourStep )
        {
          G4double motherStep =
              motherSolid->DistanceToOut(localPoint,
                                         localDirection,
                                         true, &validExitNormal, &exitNormal);
#ifdef G4VERBOSE
          if ( fCheck )
          {
            fLogger->PostComputeStepLog(motherSolid, localPoint, localDirection,
                                        motherStep, motherSafety);
          }
#endif
          if ( motherStep<=ourStep )
          {
            ourStep = motherStep;
            exiting = true;
            entering = false;
            if ( validExitNormal )
            {
              const G4RotationMatrix *rot = motherPhysical->GetRotation();
              if (rot)
              {
                exitNormal *= rot->inverse();
              }
            }  
          }
          else
          {
            validExitNormal = false;
          }
        }
      }
      newSafety = ourSafety;
    }
    if (noStep)
    {
      noStep = LocateNextVoxel(localPoint, localDirection, ourStep);
    }
  }  // end -while (noStep)- loop

  return ourStep;
}

G4double G4VoxelNavigation::ComputeVoxelSafety ( const G4ThreeVector &  localPoint ) const

protected

Definition at line 285 of file G4VoxelNavigation.cc.

References fVoxelAxisStack, fVoxelDepth, fVoxelHeaderStack, fVoxelNode, fVoxelNodeNoStack, fVoxelSliceWidthStack, G4SmartVoxelNode::GetMaxEquivalentSliceNo(), G4SmartVoxelNode::GetMinEquivalentSliceNo(), G4SmartVoxelHeader::GetMinExtent(), and G4INCL::Math::min().

Referenced by ComputeSafety(), and ComputeStep().

{
  G4SmartVoxelHeader *curHeader;
  G4double voxelSafety, curNodeWidth;
  G4double curNodeOffset, minCurCommonDelta, maxCurCommonDelta;
  G4int minCurNodeNoDelta, maxCurNodeNoDelta;
  G4int localVoxelDepth, curNodeNo;
  EAxis curHeaderAxis;

  localVoxelDepth = fVoxelDepth;

  curHeader = fVoxelHeaderStack[localVoxelDepth];
  curHeaderAxis = fVoxelAxisStack[localVoxelDepth];
  curNodeNo = fVoxelNodeNoStack[localVoxelDepth];
  curNodeWidth = fVoxelSliceWidthStack[localVoxelDepth];
  
  // Compute linear intersection distance to boundaries of max/min
  // to collected nodes at current level
  //
  curNodeOffset = curNodeNo*curNodeWidth;
  maxCurNodeNoDelta = fVoxelNode->GetMaxEquivalentSliceNo()-curNodeNo;
  minCurNodeNoDelta = curNodeNo-fVoxelNode->GetMinEquivalentSliceNo();
  minCurCommonDelta = localPoint(curHeaderAxis)
                      - curHeader->GetMinExtent() - curNodeOffset;
  maxCurCommonDelta = curNodeWidth-minCurCommonDelta;

  if ( minCurNodeNoDelta<maxCurNodeNoDelta )
  {
    voxelSafety = minCurNodeNoDelta*curNodeWidth;
    voxelSafety += minCurCommonDelta;
  }
  else if (maxCurNodeNoDelta < minCurNodeNoDelta)
  {
    voxelSafety = maxCurNodeNoDelta*curNodeWidth;
    voxelSafety += maxCurCommonDelta;
  }
  else    // (maxCurNodeNoDelta == minCurNodeNoDelta)
  {
    voxelSafety = minCurNodeNoDelta*curNodeWidth;
    voxelSafety += std::min(minCurCommonDelta,maxCurCommonDelta);
  }

  // Compute isotropic safety to boundaries of previous levels
  // [NOT to collected boundaries]
  //
  while ( (localVoxelDepth>0) && (voxelSafety>0) )
  {
    localVoxelDepth--;
    curHeader = fVoxelHeaderStack[localVoxelDepth];
    curHeaderAxis = fVoxelAxisStack[localVoxelDepth];
    curNodeNo = fVoxelNodeNoStack[localVoxelDepth];
    curNodeWidth = fVoxelSliceWidthStack[localVoxelDepth];
    curNodeOffset = curNodeNo*curNodeWidth;
    minCurCommonDelta = localPoint(curHeaderAxis)
                        - curHeader->GetMinExtent() - curNodeOffset;
    maxCurCommonDelta = curNodeWidth-minCurCommonDelta;
    
    if ( minCurCommonDelta<voxelSafety )
    {
      voxelSafety = minCurCommonDelta;
    }
    if ( maxCurCommonDelta<voxelSafety )
    {
      voxelSafety = maxCurCommonDelta;
    }
  }
  if ( voxelSafety<0 )
  {
    voxelSafety = 0;
  }

  return voxelSafety;
}

void G4VoxelNavigation::EnableBestSafety ( G4bool  flag = false )

inline

G4int G4VoxelNavigation::GetVerboseLevel ( ) const

inline

virtual G4bool G4VoxelNavigation::LevelLocate ( G4NavigationHistory &  history, const G4VPhysicalVolume *  blockedVol, const G4int  blockedNum, const G4ThreeVector &  globalPoint, const G4ThreeVector *  globalDirection, const G4bool  pLocatedOnEdge, G4ThreeVector &  localPoint  )

virtual

Reimplemented in G4ParameterisedNavigation.

Referenced by G4Navigator::LocateGlobalPointAndSetup(), and G4ITNavigator::LocateGlobalPointAndSetup().

G4bool G4VoxelNavigation::LocateNextVoxel ( const G4ThreeVector &  localPoint, const G4ThreeVector &  localDirection, const G4double  currentStep  )

protected

Definition at line 373 of file G4VoxelNavigation.cc.

References fVoxelAxisStack, fVoxelDepth, fVoxelHeaderStack, fVoxelNode, fVoxelNodeNoStack, fVoxelNoSlicesStack, fVoxelSliceWidthStack, G4SmartVoxelHeader::GetAxis(), G4SmartVoxelProxy::GetHeader(), G4GeometryTolerance::GetInstance(), G4SmartVoxelNode::GetMaxEquivalentSliceNo(), G4SmartVoxelNode::GetMinEquivalentSliceNo(), G4SmartVoxelHeader::GetMinExtent(), G4SmartVoxelProxy::GetNode(), G4GeometryTolerance::GetSurfaceTolerance(), and G4SmartVoxelProxy::IsNode().

Referenced by ComputeStep().

{
  G4SmartVoxelHeader *workHeader=0, *newHeader=0;
  G4SmartVoxelProxy *newProxy=0;
  G4SmartVoxelNode *newVoxelNode=0;
  G4ThreeVector targetPoint, voxelPoint;
  G4double workNodeWidth, workMinExtent, workCoord;
  G4double minVal, maxVal, newDistance=0.;
  G4double newHeaderMin, newHeaderNodeWidth;
  G4int depth=0, newDepth=0, workNodeNo=0, newNodeNo=0, newHeaderNoSlices=0;
  EAxis workHeaderAxis, newHeaderAxis;
  G4bool isNewVoxel=false;
  
  G4double currentDistance = currentStep;
  static const G4double sigma = 0.5*G4GeometryTolerance::GetInstance()
                                    ->GetSurfaceTolerance();

  // Determine if end of Step within current voxel
  //
  for (depth=0; depth<fVoxelDepth; depth++)
  {
    targetPoint = localPoint+localDirection*currentDistance;
    newDistance = currentDistance;
    workHeader = fVoxelHeaderStack[depth];
    workHeaderAxis = fVoxelAxisStack[depth];
    workNodeNo = fVoxelNodeNoStack[depth];
    workNodeWidth = fVoxelSliceWidthStack[depth];
    workMinExtent = workHeader->GetMinExtent();
    workCoord = targetPoint(workHeaderAxis);
    minVal = workMinExtent+workNodeNo*workNodeWidth;

    if ( minVal<=workCoord+sigma )
    {
      maxVal = minVal+workNodeWidth;
      if ( maxVal<=workCoord-sigma )
      {
        // Must consider next voxel
        //
        newNodeNo = workNodeNo+1;
        newHeader = workHeader;
        newDistance = (maxVal-localPoint(workHeaderAxis))
                    / localDirection(workHeaderAxis);
        isNewVoxel = true;
        newDepth = depth;
      }
    }
    else
    {
      newNodeNo = workNodeNo-1;
      newHeader = workHeader;
      newDistance = (minVal-localPoint(workHeaderAxis))
                  / localDirection(workHeaderAxis);
      isNewVoxel = true;
      newDepth = depth;
    }
    currentDistance = newDistance;
  }
  targetPoint = localPoint+localDirection*currentDistance;

  // Check if end of Step within collected boundaries of current voxel
  //
  depth = fVoxelDepth;
  {
    workHeader = fVoxelHeaderStack[depth];
    workHeaderAxis = fVoxelAxisStack[depth];
    workNodeNo = fVoxelNodeNoStack[depth];
    workNodeWidth = fVoxelSliceWidthStack[depth];
    workMinExtent = workHeader->GetMinExtent();
    workCoord = targetPoint(workHeaderAxis);
    minVal = workMinExtent+fVoxelNode->GetMinEquivalentSliceNo()*workNodeWidth;

    if ( minVal<=workCoord+sigma )
    {
      maxVal = workMinExtent+(fVoxelNode->GetMaxEquivalentSliceNo()+1)
                            *workNodeWidth;
      if ( maxVal<=workCoord-sigma )
      {
        newNodeNo = fVoxelNode->GetMaxEquivalentSliceNo()+1;
        newHeader = workHeader;
        newDistance = (maxVal-localPoint(workHeaderAxis))
                    / localDirection(workHeaderAxis);
        isNewVoxel = true;
        newDepth = depth;
      }
    }
    else
    {
      newNodeNo = fVoxelNode->GetMinEquivalentSliceNo()-1;
      newHeader = workHeader;
      newDistance = (minVal-localPoint(workHeaderAxis))
                  / localDirection(workHeaderAxis);
      isNewVoxel = true;
      newDepth = depth;
    }
    currentDistance = newDistance;
  }
  if (isNewVoxel)
  {
    // Compute new voxel & adjust voxel stack
    //
    // newNodeNo=Candidate node no at 
    // newDepth =refinement depth of crossed voxel boundary
    // newHeader=Header for crossed voxel
    // newDistance=distance to crossed voxel boundary (along the track)
    //
    if ( (newNodeNo<0) || (newNodeNo>=newHeader->GetNoSlices()))
    {
      // Leaving mother volume
      //
      isNewVoxel = false;
    }
    else
    {
      // Compute intersection point on the least refined
      // voxel boundary that is hit
      //
      voxelPoint = localPoint+localDirection*newDistance;
      fVoxelNodeNoStack[newDepth] = newNodeNo;
      fVoxelDepth = newDepth;
      newVoxelNode = 0;
      while ( !newVoxelNode )
      {
        newProxy = newHeader->GetSlice(newNodeNo);
        if (newProxy->IsNode())
        {
          newVoxelNode = newProxy->GetNode();
        }
        else
        {
          fVoxelDepth++;
          newHeader = newProxy->GetHeader();
          newHeaderAxis = newHeader->GetAxis();
          newHeaderNoSlices = newHeader->GetNoSlices();
          newHeaderMin = newHeader->GetMinExtent();
          newHeaderNodeWidth = (newHeader->GetMaxExtent()-newHeaderMin)
                             / newHeaderNoSlices;
          newNodeNo = G4int( (voxelPoint(newHeaderAxis)-newHeaderMin)
                             / newHeaderNodeWidth );
          // Rounding protection
          //
          if ( newNodeNo<0 )
          {
            newNodeNo=0;
          }
          else if ( newNodeNo>=newHeaderNoSlices )
               {
                 newNodeNo = newHeaderNoSlices-1;
               }
          // Stack info for stepping
          //
          fVoxelAxisStack[fVoxelDepth] = newHeaderAxis;
          fVoxelNoSlicesStack[fVoxelDepth] = newHeaderNoSlices;
          fVoxelSliceWidthStack[fVoxelDepth] = newHeaderNodeWidth;
          fVoxelNodeNoStack[fVoxelDepth] = newNodeNo;
          fVoxelHeaderStack[fVoxelDepth] = newHeader;
        }
      }
      fVoxelNode = newVoxelNode;
    }
  }
  return isNewVoxel;        
}

void G4VoxelNavigation::SetVerboseLevel

(

G4int

level

)

Definition at line 672 of file G4VoxelNavigation.cc.

References fLogger, fpVoxelSafety, G4VoxelSafety::SetVerboseLevel(), and G4NavigationLogger::SetVerboseLevel().

{
  if( fLogger )       fLogger->SetVerboseLevel(level);
  if( fpVoxelSafety)  fpVoxelSafety->SetVerboseLevel( level ); 
}

G4SmartVoxelNode* G4VoxelNavigation::VoxelLocate	(	G4SmartVoxelHeader *	pHead,
		const G4ThreeVector &	localPoint
	)

Referenced by G4Navigator::LocateGlobalPointWithinVolume(), and G4ITNavigator::LocateGlobalPointWithinVolume().

G4SmartVoxelNode* G4VoxelNavigation::VoxelLocateLight ( G4SmartVoxelHeader *  pHead, const G4ThreeVector &  localPoint  ) const

protected

Field Documentation

G4bool G4VoxelNavigation::fBestSafety

protected

Definition at line 187 of file G4VoxelNavigation.hh.

Referenced by ComputeSafety().

G4BlockingList G4VoxelNavigation::fBList

protected

Definition at line 150 of file G4VoxelNavigation.hh.

Referenced by G4ParameterisedNavigation::ComputeStep(), and ComputeStep().

G4bool G4VoxelNavigation::fCheck

protected

Definition at line 186 of file G4VoxelNavigation.hh.

Referenced by ComputeSafety(), G4ParameterisedNavigation::ComputeStep(), and ComputeStep().

G4NavigationLogger* G4VoxelNavigation::fLogger

protected

Definition at line 189 of file G4VoxelNavigation.hh.

Referenced by ComputeSafety(), ComputeStep(), G4VoxelNavigation(), SetVerboseLevel(), and ~G4VoxelNavigation().

G4VoxelSafety* G4VoxelNavigation::fpVoxelSafety

protected

Definition at line 183 of file G4VoxelNavigation.hh.

Referenced by ComputeSafety(), G4VoxelNavigation(), SetVerboseLevel(), and ~G4VoxelNavigation().

std::vector<EAxis> G4VoxelNavigation::fVoxelAxisStack

protected

Definition at line 161 of file G4VoxelNavigation.hh.

Referenced by ComputeVoxelSafety(), and LocateNextVoxel().

G4int G4VoxelNavigation::fVoxelDepth

protected

Definition at line 157 of file G4VoxelNavigation.hh.

Referenced by ComputeVoxelSafety(), and LocateNextVoxel().

std::vector<G4SmartVoxelHeader*> G4VoxelNavigation::fVoxelHeaderStack

protected

Definition at line 173 of file G4VoxelNavigation.hh.

Referenced by ComputeVoxelSafety(), and LocateNextVoxel().

G4SmartVoxelNode* G4VoxelNavigation::fVoxelNode

protected

Definition at line 176 of file G4VoxelNavigation.hh.

Referenced by G4ParameterisedNavigation::ComputeSafety(), ComputeSafety(), G4ParameterisedNavigation::ComputeStep(), ComputeStep(), ComputeVoxelSafety(), and LocateNextVoxel().

std::vector<G4int> G4VoxelNavigation::fVoxelNodeNoStack

protected

Definition at line 170 of file G4VoxelNavigation.hh.

Referenced by ComputeVoxelSafety(), and LocateNextVoxel().

std::vector<G4int> G4VoxelNavigation::fVoxelNoSlicesStack

protected

Definition at line 164 of file G4VoxelNavigation.hh.

Referenced by LocateNextVoxel().

std::vector<G4double> G4VoxelNavigation::fVoxelSliceWidthStack

protected

Definition at line 167 of file G4VoxelNavigation.hh.

Referenced by ComputeVoxelSafety(), and LocateNextVoxel().

---

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

• G4VoxelNavigation.hh
• G4VoxelNavigation.cc