G4SubtractionSolid Class Reference

#include <G4SubtractionSolid.hh>

Inheritance diagram for G4SubtractionSolid:

Public Member Functions
	G4SubtractionSolid (const G4String &pName, G4VSolid *pSolidA, G4VSolid *pSolidB)
	G4SubtractionSolid (const G4String &pName, G4VSolid *pSolidA, G4VSolid *pSolidB, G4RotationMatrix *rotMatrix, const G4ThreeVector &transVector)
	G4SubtractionSolid (const G4String &pName, G4VSolid *pSolidA, G4VSolid *pSolidB, const G4Transform3D &transform)
virtual	~G4SubtractionSolid ()
G4GeometryType	GetEntityType () const
G4VSolid *	Clone () const
	G4SubtractionSolid (__void__ &)
	G4SubtractionSolid (const G4SubtractionSolid &rhs)
G4SubtractionSolid &	operator= (const G4SubtractionSolid &rhs)
void	BoundingLimits (G4ThreeVector &pMin, G4ThreeVector &pMax) const
G4bool	CalculateExtent (const EAxis pAxis, const G4VoxelLimits &pVoxelLimit, const G4AffineTransform &pTransform, G4double &pMin, G4double &pMax) const
EInside	Inside (const G4ThreeVector &p) const
G4ThreeVector	SurfaceNormal (const G4ThreeVector &p) const
G4double	DistanceToIn (const G4ThreeVector &p, const G4ThreeVector &v) const
G4double	DistanceToIn (const G4ThreeVector &p) const
G4double	DistanceToOut (const G4ThreeVector &p, const G4ThreeVector &v, const G4bool calcNorm=false, G4bool *validNorm=nullptr, G4ThreeVector *n=nullptr) const
G4double	DistanceToOut (const G4ThreeVector &p) const
void	ComputeDimensions (G4VPVParameterisation *p, const G4int n, const G4VPhysicalVolume *pRep)
void	DescribeYourselfTo (G4VGraphicsScene &scene) const
G4Polyhedron *	CreatePolyhedron () const
virtual G4double	GetCubicVolume () final
Public Member Functions inherited from G4BooleanSolid
	G4BooleanSolid (const G4String &pName, G4VSolid *pSolidA, G4VSolid *pSolidB)
	G4BooleanSolid (const G4String &pName, G4VSolid *pSolidA, G4VSolid *pSolidB, G4RotationMatrix *rotMatrix, const G4ThreeVector &transVector)
	G4BooleanSolid (const G4String &pName, G4VSolid *pSolidA, G4VSolid *pSolidB, const G4Transform3D &transform)
virtual	~G4BooleanSolid ()
virtual const G4VSolid *	GetConstituentSolid (G4int no) const
virtual G4VSolid *	GetConstituentSolid (G4int no)
virtual G4double	GetCubicVolume ()
G4double	GetSurfaceArea ()
virtual G4GeometryType	GetEntityType () const
virtual G4Polyhedron *	GetPolyhedron () const
std::ostream &	StreamInfo (std::ostream &os) const
G4int	GetCubVolStatistics () const
G4double	GetCubVolEpsilon () const
void	SetCubVolStatistics (G4int st)
void	SetCubVolEpsilon (G4double ep)
G4int	GetAreaStatistics () const
G4double	GetAreaAccuracy () const
void	SetAreaStatistics (G4int st)
void	SetAreaAccuracy (G4double ep)
G4ThreeVector	GetPointOnSurface () const
	G4BooleanSolid (__void__ &)
	G4BooleanSolid (const G4BooleanSolid &rhs)
G4BooleanSolid &	operator= (const G4BooleanSolid &rhs)
Public Member Functions inherited from G4VSolid
	G4VSolid (const G4String &name)
virtual	~G4VSolid ()
G4bool	operator== (const G4VSolid &s) const
G4String	GetName () const
void	SetName (const G4String &name)
G4double	GetTolerance () const
virtual void	BoundingLimits (G4ThreeVector &pMin, G4ThreeVector &pMax) const
virtual G4bool	CalculateExtent (const EAxis pAxis, const G4VoxelLimits &pVoxelLimit, const G4AffineTransform &pTransform, G4double &pMin, G4double &pMax) const =0
virtual EInside	Inside (const G4ThreeVector &p) const =0
virtual G4ThreeVector	SurfaceNormal (const G4ThreeVector &p) const =0
virtual G4double	DistanceToIn (const G4ThreeVector &p, const G4ThreeVector &v) const =0
virtual G4double	DistanceToIn (const G4ThreeVector &p) const =0
virtual G4double	DistanceToOut (const G4ThreeVector &p, const G4ThreeVector &v, const G4bool calcNorm=false, G4bool *validNorm=nullptr, G4ThreeVector *n=nullptr) const =0
virtual G4double	DistanceToOut (const G4ThreeVector &p) const =0
virtual void	ComputeDimensions (G4VPVParameterisation *p, const G4int n, const G4VPhysicalVolume *pRep)
virtual G4double	GetCubicVolume ()
virtual G4double	GetSurfaceArea ()
virtual G4GeometryType	GetEntityType () const =0
virtual G4ThreeVector	GetPointOnSurface () const
virtual G4VSolid *	Clone () const
virtual std::ostream &	StreamInfo (std::ostream &os) const =0
void	DumpInfo () const
virtual void	DescribeYourselfTo (G4VGraphicsScene &scene) const =0
virtual G4VisExtent	GetExtent () const
virtual G4Polyhedron *	CreatePolyhedron () const
virtual G4Polyhedron *	GetPolyhedron () const
virtual const G4VSolid *	GetConstituentSolid (G4int no) const
virtual G4VSolid *	GetConstituentSolid (G4int no)
virtual const G4DisplacedSolid *	GetDisplacedSolidPtr () const
virtual G4DisplacedSolid *	GetDisplacedSolidPtr ()
	G4VSolid (__void__ &)
	G4VSolid (const G4VSolid &rhs)
G4VSolid &	operator= (const G4VSolid &rhs)
G4double	EstimateCubicVolume (G4int nStat, G4double epsilon) const
G4double	EstimateSurfaceArea (G4int nStat, G4double ell) const

Additional Inherited Members
Protected Member Functions inherited from G4BooleanSolid
void	GetListOfPrimitives (std::vector< std::pair< G4VSolid *, G4Transform3D > > &, const G4Transform3D &) const
G4Polyhedron *	StackPolyhedron (HepPolyhedronProcessor &, const G4VSolid *) const
Protected Member Functions inherited from G4VSolid
void	CalculateClippedPolygonExtent (G4ThreeVectorList &pPolygon, const G4VoxelLimits &pVoxelLimit, const EAxis pAxis, G4double &pMin, G4double &pMax) const
void	ClipCrossSection (G4ThreeVectorList *pVertices, const G4int pSectionIndex, const G4VoxelLimits &pVoxelLimit, const EAxis pAxis, G4double &pMin, G4double &pMax) const
void	ClipBetweenSections (G4ThreeVectorList *pVertices, const G4int pSectionIndex, const G4VoxelLimits &pVoxelLimit, const EAxis pAxis, G4double &pMin, G4double &pMax) const
void	ClipPolygon (G4ThreeVectorList &pPolygon, const G4VoxelLimits &pVoxelLimit, const EAxis pAxis) const
Protected Attributes inherited from G4BooleanSolid
G4VSolid *	fPtrSolidA = nullptr
G4VSolid *	fPtrSolidB = nullptr
G4double	fCubicVolume = -1.0
Protected Attributes inherited from G4VSolid
G4double	kCarTolerance

Detailed Description

Definition at line 46 of file G4SubtractionSolid.hh.

Constructor & Destructor Documentation

G4SubtractionSolid() [1/5]

G4SubtractionSolid::G4SubtractionSolid	(	const G4String &	pName,
		G4VSolid *	pSolidA,
		G4VSolid *	pSolidB
	)

Definition at line 53 of file G4SubtractionSolid.cc.

  : G4BooleanSolid(pName,pSolidA,pSolidB)
{
}

G4SubtractionSolid() [2/5]

G4SubtractionSolid::G4SubtractionSolid	(	const G4String &	pName,
		G4VSolid *	pSolidA,
		G4VSolid *	pSolidB,
		G4RotationMatrix *	rotMatrix,
		const G4ThreeVector &	transVector
	)

Definition at line 64 of file G4SubtractionSolid.cc.

  : G4BooleanSolid(pName,pSolidA,pSolidB,rotMatrix,transVector)
{
} 

G4SubtractionSolid() [3/5]

G4SubtractionSolid::G4SubtractionSolid	(	const G4String &	pName,
		G4VSolid *	pSolidA,
		G4VSolid *	pSolidB,
		const G4Transform3D &	transform
	)

Definition at line 77 of file G4SubtractionSolid.cc.

  : G4BooleanSolid(pName,pSolidA,pSolidB,transform)
{
}

~G4SubtractionSolid()

G4SubtractionSolid::~G4SubtractionSolid ( )

virtual

Definition at line 99 of file G4SubtractionSolid.cc.

{
}

G4SubtractionSolid() [4/5]

G4SubtractionSolid::G4SubtractionSolid

(

__void__ &

a

)

Definition at line 90 of file G4SubtractionSolid.cc.

  : G4BooleanSolid(a)
{
}

G4SubtractionSolid() [5/5]

G4SubtractionSolid::G4SubtractionSolid

(

const G4SubtractionSolid &

rhs

)

Definition at line 107 of file G4SubtractionSolid.cc.

  : G4BooleanSolid (rhs)
{
}

Member Function Documentation

BoundingLimits()

void G4SubtractionSolid::BoundingLimits ( G4ThreeVector &  pMin, G4ThreeVector &  pMax  ) const

virtual

Reimplemented from G4VSolid.

Definition at line 135 of file G4SubtractionSolid.cc.

{
  // Since it is unclear how the shape of the first solid will be changed
  // after subtraction, just return its original bounding box.
  //
  fPtrSolidA->BoundingLimits(pMin,pMax);
 
  // Check correctness of the bounding box
  //
  if (pMin.x() >= pMax.x() || pMin.y() >= pMax.y() || pMin.z() >= pMax.z())
  {
    std::ostringstream message;
    message << "Bad bounding box (min >= max) for solid: "
            << GetName() << " !"
            << "\npMin = " << pMin
            << "\npMax = " << pMax;
    G4Exception("G4SubtractionSolid::BoundingLimits()", "GeomMgt0001",
                JustWarning, message);
    DumpInfo();
  }
}

CalculateExtent()

G4bool G4SubtractionSolid::CalculateExtent ( const EAxis  pAxis, const G4VoxelLimits &  pVoxelLimit, const G4AffineTransform &  pTransform, G4double &  pMin, G4double &  pMax  ) const

virtual

Implements G4VSolid.

Definition at line 163 of file G4SubtractionSolid.cc.

{
  // Since we cannot be sure how much the second solid subtracts 
  // from the first, we must use the first solid's extent!
 
  return fPtrSolidA->CalculateExtent( pAxis, pVoxelLimit, 
                                      pTransform, pMin, pMax );
}

Clone()

G4VSolid * G4SubtractionSolid::Clone ( ) const

virtual

Reimplemented from G4VSolid.

Definition at line 535 of file G4SubtractionSolid.cc.

{
  return new G4SubtractionSolid(*this);
}

ComputeDimensions()

void G4SubtractionSolid::ComputeDimensions ( G4VPVParameterisation *  p, const G4int  n, const G4VPhysicalVolume *  pRep  )

virtual

Reimplemented from G4VSolid.

Definition at line 545 of file G4SubtractionSolid.cc.

{
}

CreatePolyhedron()

G4Polyhedron * G4SubtractionSolid::CreatePolyhedron ( ) const

virtual

Reimplemented from G4VSolid.

Definition at line 566 of file G4SubtractionSolid.cc.

{
  HepPolyhedronProcessor processor;
  // Stack components and components of components recursively
  // See G4BooleanSolid::StackPolyhedron
  G4Polyhedron* top = StackPolyhedron(processor, this);
  G4Polyhedron* result = new G4Polyhedron(*top);
  if (processor.execute(*result)) { return result; }
  else { return nullptr; }
}

DescribeYourselfTo()

void G4SubtractionSolid::DescribeYourselfTo ( G4VGraphicsScene &  scene ) const

virtual

Implements G4VSolid.

Definition at line 556 of file G4SubtractionSolid.cc.

{
  scene.AddSolid (*this);
}

DistanceToIn() [1/2]

G4double G4SubtractionSolid::DistanceToIn ( const G4ThreeVector &  p ) const

virtual

Implements G4VSolid.

Definition at line 407 of file G4SubtractionSolid.cc.

{
  G4double dist = 0.0;
 
#ifdef G4BOOLDEBUG
  if( Inside(p) == kInside )
  {
    G4cout << "WARNING - Invalid call in "
           << "G4SubtractionSolid::DistanceToIn(p)" << G4endl
           << "  Point p is inside !" << G4endl;
    G4cout << "          p = " << p << G4endl;
    G4cerr << "WARNING - Invalid call in "
           << "G4SubtractionSolid::DistanceToIn(p)" << G4endl
           << "  Point p is inside !" << G4endl;
    G4cerr << "          p = " << p << G4endl;
  }
#endif
 
  if( ( fPtrSolidA->Inside(p) != kOutside) &&   // case 1
      ( fPtrSolidB->Inside(p) != kOutside)    )
  {
    dist = fPtrSolidB->DistanceToOut(p);
  }
  else
  {
    dist = fPtrSolidA->DistanceToIn(p); 
  }
  
  return dist; 
}

DistanceToIn() [2/2]

G4double G4SubtractionSolid::DistanceToIn ( const G4ThreeVector &  p, const G4ThreeVector &  v  ) const

virtual

Implements G4VSolid.

Definition at line 267 of file G4SubtractionSolid.cc.

{
  G4double dist = 0.0, dist2 = 0.0, disTmp = 0.0;
    
#ifdef G4BOOLDEBUG
  if( Inside(p) == kInside )
  {
    G4cout << "WARNING - Invalid call in "
           << "G4SubtractionSolid::DistanceToIn(p,v)" << G4endl
           << "  Point p is inside !" << G4endl;
    G4cout << "          p = " << p << G4endl;
    G4cout << "          v = " << v << G4endl;
    G4cerr << "WARNING - Invalid call in "
           << "G4SubtractionSolid::DistanceToIn(p,v)" << G4endl
           << "  Point p is inside !" << G4endl;
    G4cerr << "          p = " << p << G4endl;
    G4cerr << "          v = " << v << G4endl;
  }
#endif
 
    // if( // ( fPtrSolidA->Inside(p) != kOutside) &&  // case1:p in both A&B 
    if ( fPtrSolidB->Inside(p) != kOutside )   // start: out of B
    {
      dist = fPtrSolidB->DistanceToOut(p,v) ; // ,calcNorm,validNorm,n) ;
      
      if( fPtrSolidA->Inside(p+dist*v) != kInside )
      {
        G4int count1=0;
        do   // Loop checking, 13.08.2015, G.Cosmo
        {
          disTmp = fPtrSolidA->DistanceToIn(p+dist*v,v) ;
 
          if(disTmp == kInfinity)
          {  
            return kInfinity ;
          }
          dist += disTmp ;
 
          if( Inside(p+dist*v) == kOutside )
          {
            disTmp = fPtrSolidB->DistanceToOut(p+dist*v,v) ;
            dist2 = dist+disTmp;
            if (dist == dist2)  { return dist; }   // no progress
            dist = dist2 ;
            ++count1;
            if( count1 > 1000 )  // Infinite loop detected
            {
              G4String nameB = fPtrSolidB->GetName();
              if(fPtrSolidB->GetEntityType()=="G4DisplacedSolid")
              {
                nameB = (dynamic_cast<G4DisplacedSolid*>(fPtrSolidB))
                        ->GetConstituentMovedSolid()->GetName();
              }
              std::ostringstream message;
              message << "Illegal condition caused by solids: "
                      << fPtrSolidA->GetName() << " and " << nameB << G4endl;
              message.precision(16);
              message << "Looping detected in point " << p+dist*v
                      << ", from original point " << p
                      << " and direction " << v << G4endl
                      << "Computed candidate distance: " << dist << "*mm. ";
              message.precision(6);
              DumpInfo();
              G4Exception("G4SubtractionSolid::DistanceToIn(p,v)",
                          "GeomSolids1001", JustWarning, message,
                          "Returning candidate distance.");
              return dist;
            }
          }    
        }
        while( Inside(p+dist*v) == kOutside ) ;
      }
    }
    else // p outside A, start in A
    {
      dist = fPtrSolidA->DistanceToIn(p,v) ;
 
      if( dist == kInfinity ) // past A, hence past A\B
      {
        return kInfinity ;
      }
      else
      {
        G4int count2=0;
        while( Inside(p+dist*v) == kOutside )  // pushing loop
        {
          disTmp = fPtrSolidB->DistanceToOut(p+dist*v,v) ;
          dist += disTmp ;
 
          if( Inside(p+dist*v) == kOutside )
          { 
            disTmp = fPtrSolidA->DistanceToIn(p+dist*v,v) ;
 
            if(disTmp == kInfinity) // past A, hence past A\B
            {  
              return kInfinity ;
            }                 
            dist2 = dist+disTmp;
            if (dist == dist2)  { return dist; }   // no progress
            dist = dist2 ;
            ++count2;
            if( count2 > 1000 )  // Infinite loop detected
            {
              G4String nameB = fPtrSolidB->GetName();
              if(fPtrSolidB->GetEntityType()=="G4DisplacedSolid")
              {
                nameB = (dynamic_cast<G4DisplacedSolid*>(fPtrSolidB))
                        ->GetConstituentMovedSolid()->GetName();
              }
              std::ostringstream message;
              message << "Illegal condition caused by solids: "
                      << fPtrSolidA->GetName() << " and " << nameB << G4endl;
              message.precision(16);
              message << "Looping detected in point " << p+dist*v
                      << ", from original point " << p
                      << " and direction " << v << G4endl
                      << "Computed candidate distance: " << dist << "*mm. ";
              message.precision(6);
              DumpInfo();
              G4Exception("G4SubtractionSolid::DistanceToIn(p,v)",
                          "GeomSolids1001", JustWarning, message,
                          "Returning candidate distance.");
              return dist;
            }
          }
        }    // Loop checking, 13.08.2015, G.Cosmo
      }
    }
  
  return dist ;
}

DistanceToOut() [1/2]

G4double G4SubtractionSolid::DistanceToOut ( const G4ThreeVector &  p ) const

virtual

Implements G4VSolid.

Definition at line 497 of file G4SubtractionSolid.cc.

{
  G4double dist=0.0;
 
  if( Inside(p) == kOutside )
  { 
#ifdef G4BOOLDEBUG
    G4cout << "WARNING - Invalid call in "
           << "G4SubtractionSolid::DistanceToOut(p)" << G4endl
           << "  Point p is outside" << G4endl;
    G4cout << "          p = " << p << G4endl;
    G4cerr << "WARNING - Invalid call in "
           << "G4SubtractionSolid::DistanceToOut(p)" << G4endl
           << "  Point p is outside" << G4endl;
    G4cerr << "          p = " << p << G4endl;
#endif
  }
  else
  {
     dist= std::min(fPtrSolidA->DistanceToOut(p),
                      fPtrSolidB->DistanceToIn(p) ) ; 
  }
  return dist; 
}

DistanceToOut() [2/2]

G4double G4SubtractionSolid::DistanceToOut ( const G4ThreeVector &  p, const G4ThreeVector &  v, const G4bool  calcNorm = false, G4bool *  validNorm = nullptr, G4ThreeVector *  n = nullptr  ) const

virtual

Implements G4VSolid.

Definition at line 443 of file G4SubtractionSolid.cc.

{
#ifdef G4BOOLDEBUG
    if( Inside(p) == kOutside )
    {
      G4cout << "Position:"  << G4endl << G4endl;
      G4cout << "p.x() = "   << p.x()/mm << " mm" << G4endl;
      G4cout << "p.y() = "   << p.y()/mm << " mm" << G4endl;
      G4cout << "p.z() = "   << p.z()/mm << " mm" << G4endl << G4endl;
      G4cout << "Direction:" << G4endl << G4endl;
      G4cout << "v.x() = "   << v.x() << G4endl;
      G4cout << "v.y() = "   << v.y() << G4endl;
      G4cout << "v.z() = "   << v.z() << G4endl << G4endl;
      G4cout << "WARNING - Invalid call in "
             << "G4SubtractionSolid::DistanceToOut(p,v)" << G4endl
             << "  Point p is outside !" << G4endl;
      G4cout << "          p = " << p << G4endl;
      G4cout << "          v = " << v << G4endl;
      G4cerr << "WARNING - Invalid call in "
             << "G4SubtractionSolid::DistanceToOut(p,v)" << G4endl
             << "  Point p is outside !" << G4endl;
      G4cerr << "          p = " << p << G4endl;
      G4cerr << "          v = " << v << G4endl;
    }
#endif
 
    G4double distout;
    G4double distA = fPtrSolidA->DistanceToOut(p,v,calcNorm,validNorm,n) ;
    G4double distB = fPtrSolidB->DistanceToIn(p,v) ;
    if(distB < distA)
    {
      if(calcNorm)
      {
        *n = -(fPtrSolidB->SurfaceNormal(p+distB*v)) ;
        *validNorm = false ;
      }
      distout= distB ;
    }
    else
    {
      distout= distA ; 
    } 
    return distout;
}

GetCubicVolume()

G4double G4SubtractionSolid::GetCubicVolume ( )

finalvirtual

Reimplemented from G4BooleanSolid.

Definition at line 582 of file G4SubtractionSolid.cc.

{
   if( fCubicVolume != -1.0 ) {
      return fCubicVolume;
   }
 
   G4double cubVolumeA = fPtrSolidA->GetCubicVolume();
 
   G4ThreeVector bminA, bmaxA, bminB, bmaxB;
   fPtrSolidA->BoundingLimits(bminA, bmaxA);
   fPtrSolidB->BoundingLimits(bminB, bmaxB);
   G4double intersection = 0.;
   G4bool   canIntersect =
        bminA.x() < bmaxB.x() && bminA.y() < bmaxB.y() && bminA.z() < bmaxB.z() &&
        bminB.x() < bmaxA.x() && bminB.y() < bmaxA.y() && bminB.z() < bmaxA.z();
   if ( canIntersect )
   {
      G4IntersectionSolid intersectVol( "Temporary-Intersection-for-Union",
                                        fPtrSolidA, fPtrSolidB );
      intersection = intersectVol.GetCubicVolume();
   }
 
   fCubicVolume = cubVolumeA - intersection;
   if (fCubicVolume < 0.01*cubVolumeA) fCubicVolume = G4VSolid::GetCubicVolume();
 
   return fCubicVolume;
}

GetEntityType()

G4GeometryType G4SubtractionSolid::GetEntityType ( ) const

virtual

Reimplemented from G4BooleanSolid.

Definition at line 526 of file G4SubtractionSolid.cc.

{
  return G4String("G4SubtractionSolid");
}

Inside()

EInside G4SubtractionSolid::Inside ( const G4ThreeVector &  p ) const

virtual

Implements G4VSolid.

Definition at line 180 of file G4SubtractionSolid.cc.

{
  EInside positionA = fPtrSolidA->Inside(p);
  if (positionA == kOutside) return positionA; // outside A
 
  EInside positionB = fPtrSolidB->Inside(p);
  if (positionB == kOutside) return positionA;
 
  if (positionB == kInside) return kOutside;
  if (positionA == kInside) return kSurface; // surface B
 
  // Point is on both surfaces
  //
  static const G4double rtol = 1000*kCarTolerance;
 
  return ((fPtrSolidA->SurfaceNormal(p) -
           fPtrSolidB->SurfaceNormal(p)).mag2() > rtol) ? kSurface : kOutside;
}

Referenced by DistanceToIn(), DistanceToOut(), and SurfaceNormal().

operator=()

G4SubtractionSolid & G4SubtractionSolid::operator=

(

const G4SubtractionSolid &

rhs

)

Definition at line 117 of file G4SubtractionSolid.cc.

{
  // Check assignment to self
  //
  if (this == &rhs)  { return *this; }
 
  // Copy base class data
  //
  G4BooleanSolid::operator=(rhs);
 
  return *this;
}  

SurfaceNormal()

G4ThreeVector G4SubtractionSolid::SurfaceNormal ( const G4ThreeVector &  p ) const

virtual

Implements G4VSolid.

Definition at line 204 of file G4SubtractionSolid.cc.

{
  G4ThreeVector normal;
 
  EInside InsideA = fPtrSolidA->Inside(p);
  EInside InsideB = fPtrSolidB->Inside(p); 
 
  if( InsideA == kOutside )
  {
#ifdef G4BOOLDEBUG
    G4cout << "WARNING - Invalid call [1] in "
           << "G4SubtractionSolid::SurfaceNormal(p)" << G4endl
           << "  Point p is outside !" << G4endl;
    G4cout << "          p = " << p << G4endl;
    G4cerr << "WARNING - Invalid call [1] in "
           << "G4SubtractionSolid::SurfaceNormal(p)" << G4endl
           << "  Point p is outside !" << G4endl;
    G4cerr << "          p = " << p << G4endl;
#endif
    normal = fPtrSolidA->SurfaceNormal(p) ;
  }
  else if( InsideA == kSurface && 
           InsideB != kInside      ) 
  {
    normal = fPtrSolidA->SurfaceNormal(p) ;
  }
  else if( InsideA == kInside && 
           InsideB != kOutside    )
  {
    normal = -fPtrSolidB->SurfaceNormal(p) ;
  }
  else 
  {
    if ( fPtrSolidA->DistanceToOut(p) <= fPtrSolidB->DistanceToIn(p) )
    {
      normal = fPtrSolidA->SurfaceNormal(p) ;
    }
    else
    {
      normal = -fPtrSolidB->SurfaceNormal(p) ;
    }
#ifdef G4BOOLDEBUG
    if(Inside(p) == kInside)
    {
      G4cout << "WARNING - Invalid call [2] in "
             << "G4SubtractionSolid::SurfaceNormal(p)" << G4endl
             << "  Point p is inside !" << G4endl;
      G4cout << "          p = " << p << G4endl;
      G4cerr << "WARNING - Invalid call [2] in "
             << "G4SubtractionSolid::SurfaceNormal(p)" << G4endl
             << "  Point p is inside !" << G4endl;
      G4cerr << "          p = " << p << G4endl;
    }
#endif
  }
  return normal;
}

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

• G4SubtractionSolid.hh
• G4SubtractionSolid.cc