#include <G4Polyhedra.hh>

Inheritance diagram for G4Polyhedra:

Classes
struct	surface_element

Public Member Functions
	G4Polyhedra (const G4String &name, G4double phiStart, G4double phiTotal, G4int numSide, G4int numZPlanes, const G4double zPlane[], const G4double rInner[], const G4double rOuter[])

	G4Polyhedra (const G4String &name, G4double phiStart, G4double phiTotal, G4int numSide, G4int numRZ, const G4double r[], const G4double z[])

virtual	~G4Polyhedra ()

EInside	Inside (const G4ThreeVector &p) const

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

G4double	DistanceToIn (const G4ThreeVector &p) const

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

G4bool	CalculateExtent (const EAxis pAxis, const G4VoxelLimits &pVoxelLimit, const G4AffineTransform &pTransform, G4double &pmin, G4double &pmax) const

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

G4GeometryType	GetEntityType () const

G4VSolid *	Clone () const

G4double	GetCubicVolume ()

G4double	GetSurfaceArea ()

G4ThreeVector	GetPointOnSurface () const

std::ostream &	StreamInfo (std::ostream &os) const

G4Polyhedron *	CreatePolyhedron () const

G4bool	Reset ()

G4int	GetNumSide () const

G4double	GetStartPhi () const

G4double	GetEndPhi () const

G4double	GetSinStartPhi () const

G4double	GetCosStartPhi () const

G4double	GetSinEndPhi () const

G4double	GetCosEndPhi () const

G4bool	IsOpen () const

G4bool	IsGeneric () const

G4int	GetNumRZCorner () const

G4PolyhedraSideRZ	GetCorner (const G4int index) const

G4PolyhedraHistorical *	GetOriginalParameters () const

void	SetOriginalParameters (G4PolyhedraHistorical *pars)

	G4Polyhedra (__void__ &)

	G4Polyhedra (const G4Polyhedra &source)

G4Polyhedra &	operator= (const G4Polyhedra &source)

Public Member Functions inherited from G4VCSGfaceted
	G4VCSGfaceted (const G4String &name)

virtual	~G4VCSGfaceted ()

	G4VCSGfaceted (const G4VCSGfaceted &source)

G4VCSGfaceted &	operator= (const G4VCSGfaceted &source)

virtual G4bool	CalculateExtent (const EAxis pAxis, const G4VoxelLimits &pVoxelLimit, const G4AffineTransform &pTransform, G4double &pmin, G4double &pmax) const

virtual EInside	Inside (const G4ThreeVector &p) const

virtual G4ThreeVector	SurfaceNormal (const G4ThreeVector &p) const

virtual G4double	DistanceToIn (const G4ThreeVector &p, const G4ThreeVector &v) const

virtual G4double	DistanceToIn (const G4ThreeVector &p) const

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

virtual G4double	DistanceToOut (const G4ThreeVector &p) const

virtual G4GeometryType	GetEntityType () const

virtual std::ostream &	StreamInfo (std::ostream &os) const

virtual G4Polyhedron *	CreatePolyhedron () const =0

virtual void	DescribeYourselfTo (G4VGraphicsScene &scene) const

virtual G4VisExtent	GetExtent () const

virtual G4Polyhedron *	GetPolyhedron () 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)

virtual G4double	GetCubicVolume ()

virtual G4double	GetSurfaceArea ()

	G4VCSGfaceted (__void__ &)

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

Protected Member Functions
void	SetOriginalParameters (G4ReduciblePolygon *rz)

void	Create (G4double phiStart, G4double phiTotal, G4int numSide, G4ReduciblePolygon *rz)

void	CopyStuff (const G4Polyhedra &source)

void	DeleteStuff ()

void	SetSurfaceElements () const

Protected Member Functions inherited from G4VCSGfaceted
virtual G4double	DistanceTo (const G4ThreeVector &p, const G4bool outgoing) const

G4ThreeVector	GetPointOnSurfaceGeneric () const

void	CopyStuff (const G4VCSGfaceted &source)

void	DeleteStuff ()

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
G4int	numSide = 0

G4double	startPhi

G4double	endPhi

G4bool	phiIsOpen = false

G4bool	genericPgon = false

G4int	numCorner = 0

G4PolyhedraSideRZ *	corners = nullptr

G4PolyhedraHistorical *	original_parameters = nullptr

G4EnclosingCylinder *	enclosingCylinder = nullptr

std::vector< surface_element > *	fElements = nullptr

Protected Attributes inherited from G4VCSGfaceted
G4int	numFace = 0

G4VCSGface **	faces = nullptr

G4double	fCubicVolume = 0.0

G4double	fSurfaceArea = 0.0

G4bool	fRebuildPolyhedron = false

G4Polyhedron *	fpPolyhedron = nullptr

Protected Attributes inherited from G4VSolid
G4double	kCarTolerance

Detailed Description

Definition at line 74 of file G4Polyhedra.hh.

Constructor & Destructor Documentation

◆ G4Polyhedra() [1/4]

G4Polyhedra::G4Polyhedra	(	const G4String &	name,
		G4double	phiStart,
		G4double	phiTotal,
		G4int	numSide,
		G4int	numZPlanes,
		const G4double	zPlane[],
		const G4double	rInner[],
		const G4double	rOuter[]
	)

Definition at line 71 of file G4Polyhedra.cc.

  : G4VCSGfaceted( name )
{
  if (theNumSide <= 0)
  {
    std::ostringstream message;
    message << "Solid must have at least one side - " << GetName() << G4endl
            << "        No sides specified !";
    G4Exception("G4Polyhedra::G4Polyhedra()", "GeomSolids0002",
                FatalErrorInArgument, message);
  }
 
  //
  // Calculate conversion factor from G3 radius to G4 radius
  //
  G4double phiTotal = thePhiTotal;
  if ( (phiTotal <=0) || (phiTotal >= twopi*(1-DBL_EPSILON)) )
    { phiTotal = twopi; }
  G4double convertRad = std::cos(0.5*phiTotal/theNumSide);
 
  //
  // Some historical stuff
  //
  original_parameters = new G4PolyhedraHistorical;
 
  original_parameters->numSide = theNumSide;
  original_parameters->Start_angle = phiStart;
  original_parameters->Opening_angle = phiTotal;
  original_parameters->Num_z_planes = numZPlanes;
  original_parameters->Z_values = new G4double[numZPlanes];
  original_parameters->Rmin = new G4double[numZPlanes];
  original_parameters->Rmax = new G4double[numZPlanes];
 
  for (G4int i=0; i<numZPlanes; ++i)
  {
    if (( i < numZPlanes-1) && ( zPlane[i] == zPlane[i+1] ))
    {
      if( (rInner[i]   > rOuter[i+1])
        ||(rInner[i+1] > rOuter[i])   )
      {
        DumpInfo();
        std::ostringstream message;
        message << "Cannot create a Polyhedra with no contiguous segments."
                << G4endl
                << "        Segments are not contiguous !" << G4endl
                << "        rMin[" << i << "] = " << rInner[i]
                << " -- rMax[" << i+1 << "] = " << rOuter[i+1] << G4endl
                << "        rMin[" << i+1 << "] = " << rInner[i+1]
                << " -- rMax[" << i << "] = " << rOuter[i];
        G4Exception("G4Polyhedra::G4Polyhedra()", "GeomSolids0002",
                    FatalErrorInArgument, message);
      }
    }
    original_parameters->Z_values[i] = zPlane[i];
    original_parameters->Rmin[i] = rInner[i]/convertRad;
    original_parameters->Rmax[i] = rOuter[i]/convertRad;
  }
 
 
  //
  // Build RZ polygon using special PCON/PGON GEANT3 constructor
  //
  G4ReduciblePolygon* rz =
    new G4ReduciblePolygon( rInner, rOuter, zPlane, numZPlanes );
  rz->ScaleA( 1/convertRad );
 
  //
  // Do the real work
  //
  Create( phiStart, phiTotal, theNumSide, rz );
 
  delete rz;
}

◆ G4Polyhedra() [2/4]

G4Polyhedra::G4Polyhedra	(	const G4String &	name,
		G4double	phiStart,
		G4double	phiTotal,
		G4int	numSide,
		G4int	numRZ,
		const G4double	r[],
		const G4double	z[]
	)

Definition at line 154 of file G4Polyhedra.cc.

  : G4VCSGfaceted( name ), genericPgon(true)
{
  if (theNumSide <= 0)
  {
    std::ostringstream message;
    message << "Solid must have at least one side - " << GetName() << G4endl
            << "        No sides specified !";
    G4Exception("G4Polyhedra::G4Polyhedra()", "GeomSolids0002",
                FatalErrorInArgument, message);
  }
 
  G4ReduciblePolygon* rz = new G4ReduciblePolygon( r, z, numRZ );
 
  Create( phiStart, phiTotal, theNumSide, rz );
 
  // Set original_parameters struct for consistency
  //
  SetOriginalParameters(rz);
 
  delete rz;
}

◆ ~G4Polyhedra()

G4Polyhedra::~G4Polyhedra ( )

virtual

Definition at line 371 of file G4Polyhedra.cc.

{
  delete [] corners;
  delete original_parameters;
  delete enclosingCylinder;
  delete fElements;
  delete fpPolyhedron;
  corners = nullptr;
  original_parameters = nullptr;
  enclosingCylinder = nullptr;
  fElements = nullptr;
  fpPolyhedron = nullptr;
}

◆ G4Polyhedra() [3/4]

G4Polyhedra::G4Polyhedra ( __void__ & a )

Definition at line 364 of file G4Polyhedra.cc.

  : G4VCSGfaceted(a), startPhi(0.), endPhi(0.)
{
}

◆ G4Polyhedra() [4/4]

G4Polyhedra::G4Polyhedra ( const G4Polyhedra & source )

Definition at line 387 of file G4Polyhedra.cc.

  : G4VCSGfaceted( source )
{
  CopyStuff( source );
}

Member Function Documentation

◆ BoundingLimits()

void G4Polyhedra::BoundingLimits	(	G4ThreeVector &	pMin,
		G4ThreeVector &	pMax
	)		const

virtual

Reimplemented from G4VSolid.

Definition at line 555 of file G4Polyhedra.cc.

{
  G4double rmin = kInfinity, rmax = -kInfinity;
  G4double zmin = kInfinity, zmax = -kInfinity;
  for (G4int i=0; i<GetNumRZCorner(); ++i)
  {
    G4PolyhedraSideRZ corner = GetCorner(i);
    if (corner.r < rmin) rmin = corner.r;
    if (corner.r > rmax) rmax = corner.r;
    if (corner.z < zmin) zmin = corner.z;
    if (corner.z > zmax) zmax = corner.z;
  }
 
  G4double sphi    = GetStartPhi();
  G4double ephi    = GetEndPhi();
  G4double dphi    = IsOpen() ? ephi-sphi : twopi;
  G4int    ksteps  = GetNumSide();
  G4double astep   = dphi/ksteps;
  G4double sinStep = std::sin(astep);
  G4double cosStep = std::cos(astep);
 
  G4double sinCur = GetSinStartPhi();
  G4double cosCur = GetCosStartPhi();
  if (!IsOpen()) rmin = 0.;
  G4double xmin = rmin*cosCur, xmax = xmin;
  G4double ymin = rmin*sinCur, ymax = ymin;
  for (G4int k=0; k<ksteps+1; ++k)
  {
    G4double x = rmax*cosCur;
    if (x < xmin) xmin = x;
    if (x > xmax) xmax = x;
    G4double y = rmax*sinCur;
    if (y < ymin) ymin = y;
    if (y > ymax) ymax = y;
    if (rmin > 0)
    {
      G4double xx = rmin*cosCur;
      if (xx < xmin) xmin = xx;
      if (xx > xmax) xmax = xx;
      G4double yy = rmin*sinCur;
      if (yy < ymin) ymin = yy;
      if (yy > ymax) ymax = yy;
    }
    G4double sinTmp = sinCur;
    sinCur = sinCur*cosStep + cosCur*sinStep;
    cosCur = cosCur*cosStep - sinTmp*sinStep;
  }
  pMin.set(xmin,ymin,zmin);
  pMax.set(xmax,ymax,zmax);
 
  // 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("G4Polyhedra::BoundingLimits()", "GeomMgt0001",
                JustWarning, message);
    DumpInfo();
  }
}

Referenced by CalculateExtent().

◆ CalculateExtent()

G4bool G4Polyhedra::CalculateExtent	(	const EAxis	pAxis,
		const G4VoxelLimits &	pVoxelLimit,
		const G4AffineTransform &	pTransform,
		G4double &	pmin,
		G4double &	pmax
	)		const

virtual

Reimplemented from G4VCSGfaceted.

Definition at line 623 of file G4Polyhedra.cc.

{
  G4ThreeVector bmin, bmax;
  G4bool exist;
 
  // Check bounding box (bbox)
  //
  BoundingLimits(bmin,bmax);
  G4BoundingEnvelope bbox(bmin,bmax);
#ifdef G4BBOX_EXTENT
  return bbox.CalculateExtent(pAxis,pVoxelLimit,pTransform,pMin,pMax);
#endif
  if (bbox.BoundingBoxVsVoxelLimits(pAxis,pVoxelLimit,pTransform,pMin,pMax))
  {
    return exist = (pMin < pMax) ? true : false;
  }
 
  // To find the extent, RZ contour of the polycone is subdivided
  // in triangles. The extent is calculated as cumulative extent of
  // all sub-polycones formed by rotation of triangles around Z
  //
  G4TwoVectorList contourRZ;
  G4TwoVectorList triangles;
  std::vector<G4int> iout;
  G4double eminlim = pVoxelLimit.GetMinExtent(pAxis);
  G4double emaxlim = pVoxelLimit.GetMaxExtent(pAxis);
 
  // get RZ contour, ensure anticlockwise order of corners
  for (G4int i=0; i<GetNumRZCorner(); ++i)
  {
    G4PolyhedraSideRZ corner = GetCorner(i);
    contourRZ.push_back(G4TwoVector(corner.r,corner.z));
  }
  G4GeomTools::RemoveRedundantVertices(contourRZ,iout,2*kCarTolerance);
  G4double area = G4GeomTools::PolygonArea(contourRZ);
  if (area < 0.) std::reverse(contourRZ.begin(),contourRZ.end());
 
  // triangulate RZ countour
  if (!G4GeomTools::TriangulatePolygon(contourRZ,triangles))
  {
    std::ostringstream message;
    message << "Triangulation of RZ contour has failed for solid: "
            << GetName() << " !"
            << "\nExtent has been calculated using boundary box";
    G4Exception("G4Polyhedra::CalculateExtent()",
                "GeomMgt1002",JustWarning,message);
    return bbox.CalculateExtent(pAxis,pVoxelLimit,pTransform,pMin,pMax);
  }
 
  // set trigonometric values
  G4double sphi     = GetStartPhi();
  G4double ephi     = GetEndPhi();
  G4double dphi     = IsOpen() ? ephi-sphi : twopi;
  G4int    ksteps   = GetNumSide();
  G4double astep    = dphi/ksteps;
  G4double sinStep  = std::sin(astep);
  G4double cosStep  = std::cos(astep);
  G4double sinStart = GetSinStartPhi();
  G4double cosStart = GetCosStartPhi();
 
  // allocate vector lists
  std::vector<const G4ThreeVectorList *> polygons;
  polygons.resize(ksteps+1);
  for (G4int k=0; k<ksteps+1; ++k)
  {
    polygons[k] = new G4ThreeVectorList(3);
  }
 
  // main loop along triangles
  pMin =  kInfinity;
  pMax = -kInfinity;
  G4int ntria = triangles.size()/3;
  for (G4int i=0; i<ntria; ++i)
  {
    G4double sinCur = sinStart;
    G4double cosCur = cosStart;
    G4int i3 = i*3;
    for (G4int k=0; k<ksteps+1; ++k) // rotate triangle
    {
      G4ThreeVectorList* ptr = const_cast<G4ThreeVectorList*>(polygons[k]);
      G4ThreeVectorList::iterator iter = ptr->begin();
      iter->set(triangles[i3+0].x()*cosCur,
                triangles[i3+0].x()*sinCur,
                triangles[i3+0].y());
      iter++;
      iter->set(triangles[i3+1].x()*cosCur,
                triangles[i3+1].x()*sinCur,
                triangles[i3+1].y());
      iter++;
      iter->set(triangles[i3+2].x()*cosCur,
                triangles[i3+2].x()*sinCur,
                triangles[i3+2].y());
 
      G4double sinTmp = sinCur;
      sinCur = sinCur*cosStep + cosCur*sinStep;
      cosCur = cosCur*cosStep - sinTmp*sinStep;
    }
 
    // set sub-envelope and adjust extent
    G4double emin,emax;
    G4BoundingEnvelope benv(polygons);
    if (!benv.CalculateExtent(pAxis,pVoxelLimit,pTransform,emin,emax)) continue;
    if (emin < pMin) pMin = emin;
    if (emax > pMax) pMax = emax;
    if (eminlim > pMin && emaxlim < pMax) break; // max possible extent
  }
  // free memory
  for (G4int k=0; k<ksteps+1; ++k) { delete polygons[k]; polygons[k]=0;}
  return (pMin < pMax);
}

◆ Clone()

G4VSolid * G4Polyhedra::Clone ( ) const

virtual

Reimplemented from G4VSolid.

Definition at line 755 of file G4Polyhedra.cc.

{
  return new G4Polyhedra(*this);
}

◆ ComputeDimensions()

void G4Polyhedra::ComputeDimensions	(	G4VPVParameterisation *	p,
		const G4int	n,
		const G4VPhysicalVolume *	pRep
	)

virtual

Reimplemented from G4VSolid.

Definition at line 739 of file G4Polyhedra.cc.

{
  p->ComputeDimensions(*this,n,pRep);
}

◆ CopyStuff()

void G4Polyhedra::CopyStuff ( const G4Polyhedra & source )

protected

Definition at line 412 of file G4Polyhedra.cc.

{
  //
  // Simple stuff
  //
  numSide    = source.numSide;
  startPhi   = source.startPhi;
  endPhi     = source.endPhi;
  phiIsOpen  = source.phiIsOpen;
  numCorner  = source.numCorner;
  genericPgon= source.genericPgon;
 
  //
  // The corner array
  //
  corners = new G4PolyhedraSideRZ[numCorner];
 
  G4PolyhedraSideRZ* corn = corners,
                   * sourceCorn = source.corners;
  do    // Loop checking, 13.08.2015, G.Cosmo
  {
    *corn = *sourceCorn;
  } while( ++sourceCorn, ++corn < corners+numCorner );
 
  //
  // Original parameters
  //
  if (source.original_parameters)
  {
    original_parameters =
      new G4PolyhedraHistorical( *source.original_parameters );
  }
 
  //
  // Enclosing cylinder
  //
  enclosingCylinder = new G4EnclosingCylinder( *source.enclosingCylinder );
 
  //
  // Surface elements
  //
  delete fElements;
  fElements = nullptr;
 
  //
  // Polyhedron
  //
  fRebuildPolyhedron = false;
  delete fpPolyhedron;
  fpPolyhedron = nullptr;
}

Referenced by G4Polyhedra(), and operator=().

◆ Create()

void G4Polyhedra::Create	(	G4double	phiStart,
		G4double	phiTotal,
		G4int	numSide,
		G4ReduciblePolygon *	rz
	)

protected

Definition at line 188 of file G4Polyhedra.cc.

{
  //
  // Perform checks of rz values
  //
  if (rz->Amin() < 0.0)
  {
    std::ostringstream message;
    message << "Illegal input parameters - " << GetName() << G4endl
            << "        All R values must be >= 0 !";
    G4Exception("G4Polyhedra::Create()", "GeomSolids0002",
                FatalErrorInArgument, message);
  }
 
  G4double rzArea = rz->Area();
  if (rzArea < -kCarTolerance)
  {
    rz->ReverseOrder();
  }
  else if (rzArea < kCarTolerance)
  {
    std::ostringstream message;
    message << "Illegal input parameters - " << GetName() << G4endl
            << "        R/Z cross section is zero or near zero: " << rzArea;
    G4Exception("G4Polyhedra::Create()", "GeomSolids0002",
                FatalErrorInArgument, message);
  }
 
  if ( (!rz->RemoveDuplicateVertices( kCarTolerance ))
    || (!rz->RemoveRedundantVertices( kCarTolerance )) )
  {
    std::ostringstream message;
    message << "Illegal input parameters - " << GetName() << G4endl
            << "        Too few unique R/Z values !";
    G4Exception("G4Polyhedra::Create()", "GeomSolids0002",
                FatalErrorInArgument, message);
  }
 
  if (rz->CrossesItself( 1/kInfinity ))
  {
    std::ostringstream message;
    message << "Illegal input parameters - " << GetName() << G4endl
            << "        R/Z segments cross !";
    G4Exception("G4Polyhedra::Create()", "GeomSolids0002",
                FatalErrorInArgument, message);
  }
 
  numCorner = rz->NumVertices();
 
 
  startPhi = phiStart;
  while( startPhi < 0 )    // Loop checking, 13.08.2015, G.Cosmo
    startPhi += twopi;
  //
  // Phi opening? Account for some possible roundoff, and interpret
  // nonsense value as representing no phi opening
  //
  if ( (phiTotal <= 0) || (phiTotal > twopi*(1-DBL_EPSILON)) )
  {
    phiIsOpen = false;
    endPhi = phiStart+twopi;
  }
  else
  {
    phiIsOpen = true;
 
    //
    // Convert phi into our convention
    //
    endPhi = phiStart+phiTotal;
    while( endPhi < startPhi )    // Loop checking, 13.08.2015, G.Cosmo
      endPhi += twopi;
  }
 
  //
  // Save number sides
  //
  numSide = theNumSide;
 
  //
  // Allocate corner array.
  //
  corners = new G4PolyhedraSideRZ[numCorner];
 
  //
  // Copy corners
  //
  G4ReduciblePolygonIterator iterRZ(rz);
 
  G4PolyhedraSideRZ *next = corners;
  iterRZ.Begin();
  do    // Loop checking, 13.08.2015, G.Cosmo
  {
    next->r = iterRZ.GetA();
    next->z = iterRZ.GetB();
  } while( ++next, iterRZ.Next() );
 
  //
  // Allocate face pointer array
  //
  numFace = phiIsOpen ? numCorner+2 : numCorner;
  faces = new G4VCSGface*[numFace];
 
  //
  // Construct side faces
  //
  // To do so properly, we need to keep track of four successive RZ
  // corners.
  //
  // But! Don't construct a face if both points are at zero radius!
  //
  G4PolyhedraSideRZ* corner = corners,
                   * prev = corners + numCorner-1,
                   * nextNext;
  G4VCSGface** face = faces;
  do    // Loop checking, 13.08.2015, G.Cosmo
  {
    next = corner+1;
    if (next >= corners+numCorner) next = corners;
    nextNext = next+1;
    if (nextNext >= corners+numCorner) nextNext = corners;
 
    if (corner->r < 1/kInfinity && next->r < 1/kInfinity) continue;
/*
    // We must decide here if we can dare declare one of our faces
    // as having a "valid" normal (i.e. allBehind = true). This
    // is never possible if the face faces "inward" in r *unless*
    // we have only one side
    //
    G4bool allBehind;
    if ((corner->z > next->z) && (numSide > 1))
    {
      allBehind = false;
    }
    else
    {
      //
      // Otherwise, it is only true if the line passing
      // through the two points of the segment do not
      // split the r/z cross section
      //
      allBehind = !rz->BisectedBy( corner->r, corner->z,
                                   next->r, next->z, kCarTolerance );
    }
*/
    *face++ = new G4PolyhedraSide( prev, corner, next, nextNext,
                 numSide, startPhi, endPhi-startPhi, phiIsOpen );
  } while( prev=corner, corner=next, corner > corners );
 
  if (phiIsOpen)
  {
    //
    // Construct phi open edges
    //
    *face++ = new G4PolyPhiFace( rz, startPhi, phiTotal/numSide, endPhi );
    *face++ = new G4PolyPhiFace( rz, endPhi,   phiTotal/numSide, startPhi );
  }
 
  //
  // We might have dropped a face or two: recalculate numFace
  //
  numFace = face-faces;
 
  //
  // Make enclosingCylinder
  //
  enclosingCylinder =
    new G4EnclosingCylinder( rz, phiIsOpen, phiStart, phiTotal );
}

Referenced by G4Polyhedra(), and Reset().

◆ CreatePolyhedron()

G4Polyhedron * G4Polyhedra::CreatePolyhedron ( ) const

virtual

Creates user defined polyhedron. This function allows to the user to define arbitrary polyhedron. The faces of the polyhedron should be either triangles or planar quadrilateral. Nodes of a face are defined by indexes pointing to the elements in the xyz array. Numeration of the elements in the array starts from 1 (like in fortran). The indexes can be positive or negative. Negative sign means that the corresponding edge is invisible. The normal of the face should be directed to exterior of the polyhedron.

Parameters

Nnodes	number of nodes
Nfaces	number of faces
xyz	nodes
faces_vec	faces (quadrilaterals or triangles)

Returns: status of the operation - is non-zero in case of problem

Implements G4VCSGfaceted.

Definition at line 1037 of file G4Polyhedra.cc.

{
  if (!genericPgon)
  {
    return new G4PolyhedronPgon( original_parameters->Start_angle,
                                 original_parameters->Opening_angle,
                                 original_parameters->numSide,
                                 original_parameters->Num_z_planes,
                                 original_parameters->Z_values,
                                 original_parameters->Rmin,
                                 original_parameters->Rmax);
  }
  else
  {
    // The following code prepares for:
    // HepPolyhedron::createPolyhedron(int Nnodes, int Nfaces,
    //                                 const double xyz[][3],
    //                                 const int faces_vec[][4])
    // Here is an extract from the header file HepPolyhedron.h:
    /**
     * Creates user defined polyhedron.
     * This function allows to the user to define arbitrary polyhedron.
     * The faces of the polyhedron should be either triangles or planar
     * quadrilateral. Nodes of a face are defined by indexes pointing to
     * the elements in the xyz array. Numeration of the elements in the
     * array starts from 1 (like in fortran). The indexes can be positive
     * or negative. Negative sign means that the corresponding edge is
     * invisible. The normal of the face should be directed to exterior
     * of the polyhedron.
     *
     * @param  Nnodes number of nodes
     * @param  Nfaces number of faces
     * @param  xyz    nodes
     * @param  faces_vec  faces (quadrilaterals or triangles)
     * @return status of the operation - is non-zero in case of problem
     */
    G4int nNodes;
    G4int nFaces;
    typedef G4double double3[3];
    double3* xyz;
    typedef G4int int4[4];
    int4* faces_vec;
    if (phiIsOpen)
    {
      // Triangulate open ends.  Simple ear-chopping algorithm...
      // I'm not sure how robust this algorithm is (J.Allison).
      //
      std::vector<G4bool> chopped(numCorner, false);
      std::vector<G4int*> triQuads;
      G4int remaining = numCorner;
      G4int iStarter = 0;
      while (remaining >= 3)    // Loop checking, 13.08.2015, G.Cosmo
      {
        // Find unchopped corners...
        //
        G4int A = -1, B = -1, C = -1;
        G4int iStepper = iStarter;
        do    // Loop checking, 13.08.2015, G.Cosmo
        {
          if (A < 0)      { A = iStepper; }
          else if (B < 0) { B = iStepper; }
          else if (C < 0) { C = iStepper; }
          do    // Loop checking, 13.08.2015, G.Cosmo
          {
            if (++iStepper >= numCorner) iStepper = 0;
          }
          while (chopped[iStepper]);
        }
        while (C < 0 && iStepper != iStarter);
 
        // Check triangle at B is pointing outward (an "ear").
        // Sign of z cross product determines...
 
        G4double BAr = corners[A].r - corners[B].r;
        G4double BAz = corners[A].z - corners[B].z;
        G4double BCr = corners[C].r - corners[B].r;
        G4double BCz = corners[C].z - corners[B].z;
        if (BAr * BCz - BAz * BCr < kCarTolerance)
        {
          G4int* tq = new G4int[3];
          tq[0] = A + 1;
          tq[1] = B + 1;
          tq[2] = C + 1;
          triQuads.push_back(tq);
          chopped[B] = true;
          --remaining;
        }
        else
        {
          do    // Loop checking, 13.08.2015, G.Cosmo
          {
            if (++iStarter >= numCorner) { iStarter = 0; }
          }
          while (chopped[iStarter]);
        }
      }
 
      // Transfer to faces...
 
      nNodes = (numSide + 1) * numCorner;
      nFaces = numSide * numCorner + 2 * triQuads.size();
      faces_vec = new int4[nFaces];
      G4int iface = 0;
      G4int addition = numCorner * numSide;
      G4int d = numCorner - 1;
      for (G4int iEnd = 0; iEnd < 2; ++iEnd)
      {
        for (size_t i = 0; i < triQuads.size(); ++i)
        {
          // Negative for soft/auxiliary/normally invisible edges...
          //
          G4int a, b, c;
          if (iEnd == 0)
          {
            a = triQuads[i][0];
            b = triQuads[i][1];
            c = triQuads[i][2];
          }
          else
          {
            a = triQuads[i][0] + addition;
            b = triQuads[i][2] + addition;
            c = triQuads[i][1] + addition;
          }
          G4int ab = std::abs(b - a);
          G4int bc = std::abs(c - b);
          G4int ca = std::abs(a - c);
          faces_vec[iface][0] = (ab == 1 || ab == d)? a: -a;
          faces_vec[iface][1] = (bc == 1 || bc == d)? b: -b;
          faces_vec[iface][2] = (ca == 1 || ca == d)? c: -c;
          faces_vec[iface][3] = 0;
          ++iface;
        }
      }
 
      // Continue with sides...
 
      xyz = new double3[nNodes];
      const G4double dPhi = (endPhi - startPhi) / numSide;
      G4double phi = startPhi;
      G4int ixyz = 0;
      for (G4int iSide = 0; iSide < numSide; ++iSide)
      {
        for (G4int iCorner = 0; iCorner < numCorner; ++iCorner)
        {
          xyz[ixyz][0] = corners[iCorner].r * std::cos(phi);
          xyz[ixyz][1] = corners[iCorner].r * std::sin(phi);
          xyz[ixyz][2] = corners[iCorner].z;
          if (iCorner < numCorner - 1)
          {
            faces_vec[iface][0] = ixyz + 1;
            faces_vec[iface][1] = ixyz + numCorner + 1;
            faces_vec[iface][2] = ixyz + numCorner + 2;
            faces_vec[iface][3] = ixyz + 2;
          }
          else
          {
            faces_vec[iface][0] = ixyz + 1;
            faces_vec[iface][1] = ixyz + numCorner + 1;
            faces_vec[iface][2] = ixyz + 2;
            faces_vec[iface][3] = ixyz - numCorner + 2;
          }
          ++iface;
          ++ixyz;
        }
        phi += dPhi;
      }
 
      // Last corners...
 
      for (G4int iCorner = 0; iCorner < numCorner; ++iCorner)
      {
        xyz[ixyz][0] = corners[iCorner].r * std::cos(phi);
        xyz[ixyz][1] = corners[iCorner].r * std::sin(phi);
        xyz[ixyz][2] = corners[iCorner].z;
        ++ixyz;
      }
    }
    else  // !phiIsOpen - i.e., a complete 360 degrees.
    {
      nNodes = numSide * numCorner;
      nFaces = numSide * numCorner;;
      xyz = new double3[nNodes];
      faces_vec = new int4[nFaces];
      // const G4double dPhi = (endPhi - startPhi) / numSide;
      const G4double dPhi = twopi / numSide;
      // !phiIsOpen endPhi-startPhi = 360 degrees.
      G4double phi = startPhi;
      G4int ixyz = 0, iface = 0;
      for (G4int iSide = 0; iSide < numSide; ++iSide)
      {
        for (G4int iCorner = 0; iCorner < numCorner; ++iCorner)
        {
          xyz[ixyz][0] = corners[iCorner].r * std::cos(phi);
          xyz[ixyz][1] = corners[iCorner].r * std::sin(phi);
          xyz[ixyz][2] = corners[iCorner].z;
          if (iSide < numSide - 1)
          {
            if (iCorner < numCorner - 1)
            {
              faces_vec[iface][0] = ixyz + 1;
              faces_vec[iface][1] = ixyz + numCorner + 1;
              faces_vec[iface][2] = ixyz + numCorner + 2;
              faces_vec[iface][3] = ixyz + 2;
            }
            else
            {
              faces_vec[iface][0] = ixyz + 1;
              faces_vec[iface][1] = ixyz + numCorner + 1;
              faces_vec[iface][2] = ixyz + 2;
              faces_vec[iface][3] = ixyz - numCorner + 2;
            }
          }
          else   // Last side joins ends...
          {
            if (iCorner < numCorner - 1)
            {
              faces_vec[iface][0] = ixyz + 1;
              faces_vec[iface][1] = ixyz + numCorner - nFaces + 1;
              faces_vec[iface][2] = ixyz + numCorner - nFaces + 2;
              faces_vec[iface][3] = ixyz + 2;
            }
            else
            {
              faces_vec[iface][0] = ixyz + 1;
              faces_vec[iface][1] = ixyz - nFaces + numCorner + 1;
              faces_vec[iface][2] = ixyz - nFaces + 2;
              faces_vec[iface][3] = ixyz - numCorner + 2;
            }
          }
          ++ixyz;
          ++iface;
        }
        phi += dPhi;
      }
    }
    G4Polyhedron* polyhedron = new G4Polyhedron;
    G4int problem = polyhedron->createPolyhedron(nNodes,nFaces,xyz,faces_vec);
    delete [] faces_vec;
    delete [] xyz;
    if (problem)
    {
      std::ostringstream message;
      message << "Problem creating G4Polyhedron for: " << GetName();
      G4Exception("G4Polyhedra::CreatePolyhedron()", "GeomSolids1002",
                  JustWarning, message);
      delete polyhedron;
      return nullptr;
    }
    else
    {
      return polyhedron;
    }
  }
}

◆ DeleteStuff()

void G4Polyhedra::DeleteStuff ( )

protected

◆ DistanceToIn() [1/2]

G4double G4Polyhedra::DistanceToIn ( const G4ThreeVector & p ) const

virtual

Reimplemented from G4VCSGfaceted.

Definition at line 548 of file G4Polyhedra.cc.

{
  return G4VCSGfaceted::DistanceToIn(p);
}

◆ DistanceToIn() [2/2]

G4double G4Polyhedra::DistanceToIn	(	const G4ThreeVector &	p,
		const G4ThreeVector &	v
	)		const

virtual

Reimplemented from G4VCSGfaceted.

Definition at line 531 of file G4Polyhedra.cc.

{
  //
  // Quick test
  //
  if (enclosingCylinder->ShouldMiss(p,v))
    return kInfinity;
 
  //
  // Long answer
  //
  return G4VCSGfaceted::DistanceToIn( p, v );
}

◆ GetCorner()

G4PolyhedraSideRZ G4Polyhedra::GetCorner ( const G4int index ) const

inline

Referenced by BoundingLimits(), CalculateExtent(), GetCubicVolume(), GetPointOnSurface(), G4tgbGeometryDumper::GetSolidParams(), GetSurfaceArea(), G4GDMLWriteSolids::PolyhedraWrite(), and SetSurfaceElements().

◆ GetCosEndPhi()

G4double G4Polyhedra::GetCosEndPhi ( ) const

inline

◆ GetCosStartPhi()

G4double G4Polyhedra::GetCosStartPhi ( ) const

inline

Referenced by BoundingLimits(), and CalculateExtent().

◆ GetCubicVolume()

G4double G4Polyhedra::GetCubicVolume ( )

virtual

Reimplemented from G4VCSGfaceted.

Definition at line 814 of file G4Polyhedra.cc.

{
  if (fCubicVolume == 0.)
  {
    G4double total = 0.;
    G4int nrz = GetNumRZCorner();
    G4PolyhedraSideRZ a = GetCorner(nrz - 1);
    for (G4int i=0; i<nrz; ++i)
    {
      G4PolyhedraSideRZ b = GetCorner(i);
      total += (b.r*b.r + b.r*a.r + a.r*a.r)*(b.z - a.z);
      a = b;
    }
    fCubicVolume = std::abs(total)*
      std::sin((GetEndPhi() - GetStartPhi())/GetNumSide())*GetNumSide()/6.;
  }
  return fCubicVolume;
}

◆ GetEndPhi()

G4double G4Polyhedra::GetEndPhi ( ) const

inline

Referenced by BoundingLimits(), G4tgbVolume::BuildSolidForDivision(), CalculateExtent(), G4ParameterisationPolyhedraPhi::G4ParameterisationPolyhedraPhi(), G4VParameterisationPolyhedra::G4VParameterisationPolyhedra(), GetCubicVolume(), G4ParameterisationPolyhedraPhi::GetMaxParameter(), GetPointOnSurface(), GetSurfaceArea(), and SetSurfaceElements().

◆ GetEntityType()

G4GeometryType G4Polyhedra::GetEntityType ( ) const

virtual

Reimplemented from G4VCSGfaceted.

Definition at line 748 of file G4Polyhedra.cc.

{
  return G4String("G4Polyhedra");
}

◆ GetNumRZCorner()

G4int G4Polyhedra::GetNumRZCorner ( ) const

inline

Referenced by BoundingLimits(), CalculateExtent(), GetCubicVolume(), GetPointOnSurface(), G4tgbGeometryDumper::GetSolidParams(), GetSurfaceArea(), G4GDMLWriteSolids::PolyhedraWrite(), and SetSurfaceElements().

◆ GetNumSide()

G4int G4Polyhedra::GetNumSide ( ) const

inline

Referenced by BoundingLimits(), G4tgbVolume::BuildSolidForDivision(), CalculateExtent(), G4ParameterisationPolyhedraPhi::G4ParameterisationPolyhedraPhi(), GetCubicVolume(), GetPointOnSurface(), G4tgbGeometryDumper::GetSolidParams(), GetSurfaceArea(), and SetSurfaceElements().

◆ GetOriginalParameters()

G4PolyhedraHistorical * G4Polyhedra::GetOriginalParameters ( ) const

inline

◆ GetPointOnSurface()

G4ThreeVector G4Polyhedra::GetPointOnSurface ( ) const

virtual

Reimplemented from G4VSolid.

Definition at line 956 of file G4Polyhedra.cc.

{
  // Set surface elements
  if (!fElements)
  {
    G4AutoLock l(&surface_elementsMutex);
    SetSurfaceElements();
    l.unlock();
  }
 
  // Select surface element
  G4Polyhedra::surface_element selem;
  selem = fElements->back();
  G4double select = selem.area*G4QuickRand();
  auto it = std::lower_bound(fElements->begin(), fElements->end(), select,
                             [](const G4Polyhedra::surface_element& x, G4double val)
                             -> G4bool { return x.area < val; });
 
  // Generate random point
  G4double x = 0, y = 0, z = 0;
  G4double u = G4QuickRand();
  G4double v = G4QuickRand();
  if (u + v > 1.) { u = 1. - u; v = 1. - v; }
  G4int i0 = (*it).i0;
  G4int i1 = (*it).i1;
  G4int i2 = (*it).i2;
  if (i2 < 0) // lateral surface
  {
    // sample point
    G4int nside = GetNumSide();
    G4double dphi = (GetEndPhi() - GetStartPhi())/nside;
    G4double cosa = std::cos(dphi);
    G4double sina = std::sin(dphi);
    G4PolyhedraSideRZ a = GetCorner(i0);
    G4PolyhedraSideRZ b = GetCorner(i1);
    G4ThreeVector p0(a.r, 0, a.z);
    G4ThreeVector p1(b.r, 0, b.z);
    G4ThreeVector p2(b.r*cosa, b.r*sina, b.z);
    if (i2 == -1) p1.set(a.r*cosa, a.r*sina, a.z);
    p0 += (p1 - p0)*u + (p2 - p0)*v;
    // find selected side and rotate point
    G4double scurr = (*it).area;
    G4double sprev = (it == fElements->begin()) ? 0. : (*(--it)).area;
    G4int iside = nside*(select - sprev)/(scurr - sprev);
    if (iside == 0 && GetStartPhi() == 0.)
    {
      x = p0.x();
      y = p0.y();
      z = p0.z();
    }
    else
    {
      if (iside == nside) --iside; // iside must be less then nside
      G4double phi = iside*dphi + GetStartPhi();
      G4double cosphi = std::cos(phi);
      G4double sinphi = std::sin(phi);
      x = p0.x()*cosphi - p0.y()*sinphi;
      y = p0.x()*sinphi + p0.y()*cosphi;
      z = p0.z();
    }
  }
  else // phi cut
  {
    G4int nrz = GetNumRZCorner();
    G4double phi = (i0 < nrz) ? GetStartPhi() : GetEndPhi();
    if (i0 >= nrz) { i0 -= nrz; }
    G4PolyhedraSideRZ p0 = GetCorner(i0);
    G4PolyhedraSideRZ p1 = GetCorner(i1);
    G4PolyhedraSideRZ p2 = GetCorner(i2);
    G4double r = (p1.r - p0.r)*u + (p2.r - p0.r)*v + p0.r;
    x = r*std::cos(phi);
    y = r*std::sin(phi);
    z = (p1.z - p0.z)*u + (p2.z - p0.z)*v + p0.z;
  }
  return G4ThreeVector(x, y, z);
}

◆ GetSinEndPhi()

G4double G4Polyhedra::GetSinEndPhi ( ) const

inline

◆ GetSinStartPhi()

G4double G4Polyhedra::GetSinStartPhi ( ) const

inline

Referenced by BoundingLimits(), and CalculateExtent().

◆ GetStartPhi()

G4double G4Polyhedra::GetStartPhi ( ) const

inline

Referenced by BoundingLimits(), G4tgbVolume::BuildSolidForDivision(), CalculateExtent(), G4ParameterisationPolyhedraPhi::G4ParameterisationPolyhedraPhi(), G4VParameterisationPolyhedra::G4VParameterisationPolyhedra(), GetCubicVolume(), G4ParameterisationPolyhedraPhi::GetMaxParameter(), GetPointOnSurface(), G4tgbGeometryDumper::GetSolidParams(), GetSurfaceArea(), and SetSurfaceElements().

◆ GetSurfaceArea()

G4double G4Polyhedra::GetSurfaceArea ( )

virtual

Reimplemented from G4VCSGfaceted.

Definition at line 837 of file G4Polyhedra.cc.

{
  if (fSurfaceArea == 0.)
  {
    G4double total = 0.;
    G4int nrz = GetNumRZCorner();
    if (IsOpen())
    {
      G4PolyhedraSideRZ a = GetCorner(nrz - 1);
      for (G4int i=0; i<nrz; ++i)
      {
        G4PolyhedraSideRZ b = GetCorner(i);
        total += a.r*b.z - a.z*b.r;
        a = b;
      }
      total = std::abs(total);
    }
    G4double alp = (GetEndPhi() - GetStartPhi())/GetNumSide();
    G4double cosa = std::cos(alp);
    G4double sina = std::sin(alp);
    G4PolyhedraSideRZ a = GetCorner(nrz - 1);
    for (G4int i=0; i<nrz; ++i)
    {
      G4PolyhedraSideRZ b = GetCorner(i);
      G4ThreeVector p1(a.r, 0, a.z);
      G4ThreeVector p2(a.r*cosa, a.r*sina, a.z);
      G4ThreeVector p3(b.r*cosa, b.r*sina, b.z);
      G4ThreeVector p4(b.r, 0, b.z);
      total += GetNumSide()*(G4GeomTools::QuadAreaNormal(p1, p2, p3, p4)).mag();
      a = b;
    }
    fSurfaceArea = total;
  }
  return fSurfaceArea;
}

◆ Inside()

EInside G4Polyhedra::Inside ( const G4ThreeVector & p ) const

virtual

Reimplemented from G4VCSGfaceted.

Definition at line 513 of file G4Polyhedra.cc.

{
  //
  // Quick test
  //
  if (enclosingCylinder->MustBeOutside(p)) return kOutside;
 
  //
  // Long answer
  //
  return G4VCSGfaceted::Inside(p);
}

◆ IsGeneric()

G4bool G4Polyhedra::IsGeneric ( ) const

inline

Referenced by G4VParameterisationPolyhedra::G4VParameterisationPolyhedra(), and G4GDMLWriteSolids::PolyhedraWrite().

◆ IsOpen()

G4bool G4Polyhedra::IsOpen ( ) const

inline

Referenced by BoundingLimits(), CalculateExtent(), GetSurfaceArea(), and SetSurfaceElements().

◆ operator=()

G4Polyhedra & G4Polyhedra::operator= ( const G4Polyhedra & source )

Definition at line 395 of file G4Polyhedra.cc.

{
  if (this == &source) return *this;
 
  G4VCSGfaceted::operator=( source );
 
  delete [] corners;
  delete original_parameters;
  delete enclosingCylinder;
 
  CopyStuff( source );
 
  return *this;
}

◆ Reset()

G4bool G4Polyhedra::Reset ( )

Definition at line 469 of file G4Polyhedra.cc.

{
  if (genericPgon)
  {
    std::ostringstream message;
    message << "Solid " << GetName() << " built using generic construct."
            << G4endl << "Not applicable to the generic construct !";
    G4Exception("G4Polyhedra::Reset()", "GeomSolids1001",
                JustWarning, message, "Parameters NOT resetted.");
    return true;
  }
 
  //
  // Clear old setup
  //
  G4VCSGfaceted::DeleteStuff();
  delete [] corners;
  delete enclosingCylinder;
  delete fElements;
  corners = nullptr;
  fElements = nullptr;
  enclosingCylinder = nullptr;
 
  //
  // Rebuild polyhedra
  //
  G4ReduciblePolygon* rz =
    new G4ReduciblePolygon( original_parameters->Rmin,
                            original_parameters->Rmax,
                            original_parameters->Z_values,
                            original_parameters->Num_z_planes );
  Create( original_parameters->Start_angle,
          original_parameters->Opening_angle,
          original_parameters->numSide, rz );
  delete rz;
 
  return false;
}

Referenced by G4ParameterisationPolyhedraRho::ComputeDimensions(), G4ParameterisationPolyhedraPhi::ComputeDimensions(), and G4ParameterisationPolyhedraZ::ComputeDimensions().

◆ SetOriginalParameters() [1/2]

void G4Polyhedra::SetOriginalParameters ( G4PolyhedraHistorical * pars )

inline

Referenced by G4ParameterisationPolyhedraRho::ComputeDimensions(), G4ParameterisationPolyhedraPhi::ComputeDimensions(), G4ParameterisationPolyhedraZ::ComputeDimensions(), and G4Polyhedra().

◆ SetOriginalParameters() [2/2]

void G4Polyhedra::SetOriginalParameters ( G4ReduciblePolygon * rz )

protected

Definition at line 1295 of file G4Polyhedra.cc.

{
  G4int numPlanes = numCorner;
  G4bool isConvertible = true;
  G4double Zmax=rz->Bmax();
  rz->StartWithZMin();
 
  // Prepare vectors for storage
  //
  std::vector<G4double> Z;
  std::vector<G4double> Rmin;
  std::vector<G4double> Rmax;
 
  G4int countPlanes=1;
  G4int icurr=0;
  G4int icurl=0;
 
  // first plane Z=Z[0]
  //
  Z.push_back(corners[0].z);
  G4double Zprev=Z[0];
  if (Zprev == corners[1].z)
  {
    Rmin.push_back(corners[0].r);
    Rmax.push_back (corners[1].r);icurr=1;
  }
  else if (Zprev == corners[numPlanes-1].z)
  {
    Rmin.push_back(corners[numPlanes-1].r);
    Rmax.push_back (corners[0].r);
    icurl=numPlanes-1;
  }
  else
  {
    Rmin.push_back(corners[0].r);
    Rmax.push_back (corners[0].r);
  }
 
  // next planes until last
  //
  G4int inextr=0, inextl=0;
  for (G4int i=0; i < numPlanes-2; ++i)
  {
    inextr=1+icurr;
    inextl=(icurl <= 0)? numPlanes-1 : icurl-1;
 
    if((corners[inextr].z >= Zmax) & (corners[inextl].z >= Zmax))  { break; }
 
    G4double Zleft = corners[inextl].z;
    G4double Zright = corners[inextr].z;
    if(Zright>Zleft)
    {
      Z.push_back(Zleft);
      countPlanes++;
      G4double difZr=corners[inextr].z - corners[icurr].z;
      G4double difZl=corners[inextl].z - corners[icurl].z;
 
      if(std::fabs(difZl) < kCarTolerance)
      {
        if(std::fabs(difZr) < kCarTolerance)
        {
          Rmin.push_back(corners[inextl].r);
          Rmax.push_back(corners[icurr].r);
        }
        else
        {
          Rmin.push_back(corners[inextl].r);
          Rmax.push_back(corners[icurr].r + (Zleft-corners[icurr].z)/difZr
                                *(corners[inextr].r - corners[icurr].r));
        }
      }
      else if (difZl >= kCarTolerance)
      {
        if(std::fabs(difZr) < kCarTolerance)
        {
          Rmin.push_back(corners[icurl].r);
          Rmax.push_back(corners[icurr].r);
        }
        else
        {
          Rmin.push_back(corners[icurl].r);
          Rmax.push_back(corners[icurr].r + (Zleft-corners[icurr].z)/difZr
                                *(corners[inextr].r - corners[icurr].r));
        }
      }
      else
      {
        isConvertible=false; break;
      }
      icurl=(icurl == 0)? numPlanes-1 : icurl-1;
    }
    else if(std::fabs(Zright-Zleft)<kCarTolerance)  // Zright=Zleft
    {
      Z.push_back(Zleft);
      ++countPlanes;
      ++icurr;
 
      icurl=(icurl == 0)? numPlanes-1 : icurl-1;
 
      Rmin.push_back(corners[inextl].r);
      Rmax.push_back (corners[inextr].r);
    }
    else  // Zright<Zleft
    {
      Z.push_back(Zright);
      ++countPlanes;
 
      G4double difZr=corners[inextr].z - corners[icurr].z;
      G4double difZl=corners[inextl].z - corners[icurl].z;
      if(std::fabs(difZr) < kCarTolerance)
      {
        if(std::fabs(difZl) < kCarTolerance)
        {
          Rmax.push_back(corners[inextr].r);
          Rmin.push_back(corners[icurr].r);
        }
        else
        {
          Rmin.push_back(corners[icurl].r + (Zright-corners[icurl].z)/difZl
                                * (corners[inextl].r - corners[icurl].r));
          Rmax.push_back(corners[inextr].r);
        }
        ++icurr;
      }           // plate
      else if (difZr >= kCarTolerance)
      {
        if(std::fabs(difZl) < kCarTolerance)
        {
          Rmax.push_back(corners[inextr].r);
          Rmin.push_back (corners[icurr].r);
        }
        else
        {
          Rmax.push_back(corners[inextr].r);
          Rmin.push_back (corners[icurl].r+(Zright-corners[icurl].z)/difZl
                                  * (corners[inextl].r - corners[icurl].r));
        }
        ++icurr;
      }
      else
      {
        isConvertible=false; break;
      }
    }
  }   // end for loop
 
  // last plane Z=Zmax
  //
  Z.push_back(Zmax);
  ++countPlanes;
  inextr=1+icurr;
  inextl=(icurl <= 0)? numPlanes-1 : icurl-1;
 
  Rmax.push_back(corners[inextr].r);
  Rmin.push_back(corners[inextl].r);
 
  // Set original parameters Rmin,Rmax,Z
  //
  if(isConvertible)
  {
   original_parameters = new G4PolyhedraHistorical;
   original_parameters->numSide = numSide;
   original_parameters->Z_values = new G4double[countPlanes];
   original_parameters->Rmin = new G4double[countPlanes];
   original_parameters->Rmax = new G4double[countPlanes];
 
   for(G4int j=0; j < countPlanes; ++j)
   {
     original_parameters->Z_values[j] = Z[j];
     original_parameters->Rmax[j] = Rmax[j];
     original_parameters->Rmin[j] = Rmin[j];
   }
   original_parameters->Start_angle = startPhi;
   original_parameters->Opening_angle = endPhi-startPhi;
   original_parameters->Num_z_planes = countPlanes;
 
  }
  else  // Set parameters(r,z) with Rmin==0 as convention
  {
#ifdef G4SPECSDEBUG
    std::ostringstream message;
    message << "Polyhedra " << GetName() << G4endl
      << "cannot be converted to Polyhedra with (Rmin,Rmaz,Z) parameters!";
    G4Exception("G4Polyhedra::SetOriginalParameters()",
                "GeomSolids0002", JustWarning, message);
#endif
    original_parameters = new G4PolyhedraHistorical;
    original_parameters->numSide = numSide;
    original_parameters->Z_values = new G4double[numPlanes];
    original_parameters->Rmin = new G4double[numPlanes];
    original_parameters->Rmax = new G4double[numPlanes];
 
    for(G4int j=0; j < numPlanes; ++j)
    {
      original_parameters->Z_values[j] = corners[j].z;
      original_parameters->Rmax[j] = corners[j].r;
      original_parameters->Rmin[j] = 0.0;
    }
    original_parameters->Start_angle = startPhi;
    original_parameters->Opening_angle = endPhi-startPhi;
    original_parameters->Num_z_planes = numPlanes;
  }
}

◆ SetSurfaceElements()

void G4Polyhedra::SetSurfaceElements ( ) const

protected

Definition at line 878 of file G4Polyhedra.cc.

{
  fElements = new std::vector<G4Polyhedra::surface_element>;
  G4double total = 0.;
  G4int nrz = GetNumRZCorner();
 
  // set lateral surface elements
  G4double dphi = (GetEndPhi() - GetStartPhi())/GetNumSide();
  G4double cosa = std::cos(dphi);
  G4double sina = std::sin(dphi);
  G4int ia = nrz - 1;
  for (G4int ib=0; ib<nrz; ++ib)
  {
    G4PolyhedraSideRZ a = GetCorner(ia);
    G4PolyhedraSideRZ b = GetCorner(ib);
    G4Polyhedra::surface_element selem;
    selem.i0 = ia;
    selem.i1 = ib;
    ia = ib;
    if (a.r == 0. && b.r == 0.) continue;
    G4ThreeVector p1(a.r, 0, a.z);
    G4ThreeVector p2(a.r*cosa, a.r*sina, a.z);
    G4ThreeVector p3(b.r*cosa, b.r*sina, b.z);
    G4ThreeVector p4(b.r, 0, b.z);
    if (a.r > 0.)
    {
      selem.i2 = -1;
      total += GetNumSide()*(G4GeomTools::TriangleAreaNormal(p1, p2, p3)).mag();
      selem.area = total;
      fElements->push_back(selem);
    }
    if (b.r > 0.)
    {
      selem.i2 = -2;
      total += GetNumSide()*(G4GeomTools::TriangleAreaNormal(p1, p3, p4)).mag();
      selem.area = total;
      fElements->push_back(selem);
    }
  }
 
  // set elements for phi cuts
  if (IsOpen())
  {
    G4TwoVectorList contourRZ;
    std::vector<G4int> triangles;
    for (G4int i=0; i<nrz; ++i)
    {
      G4PolyhedraSideRZ corner = GetCorner(i);
      contourRZ.push_back(G4TwoVector(corner.r, corner.z));
    }
    G4GeomTools::TriangulatePolygon(contourRZ, triangles);
    G4int ntria = triangles.size();
    for (G4int i=0; i<ntria; i+=3)
    {
      G4Polyhedra::surface_element selem;
      selem.i0 = triangles[i];
      selem.i1 = triangles[i+1];
      selem.i2 = triangles[i+2];
      G4PolyhedraSideRZ a = GetCorner(selem.i0);
      G4PolyhedraSideRZ b = GetCorner(selem.i1);
      G4PolyhedraSideRZ c = GetCorner(selem.i2);
      G4double stria =
        std::abs(G4GeomTools::TriangleArea(a.r, a.z, b.r, b.z, c.r, c.z));
      total += stria;
      selem.area = total;
      fElements->push_back(selem); // start phi
      total += stria;
      selem.area = total;
      selem.i0 += nrz;
      fElements->push_back(selem); // end phi
    }
  }
}

Referenced by GetPointOnSurface().

◆ StreamInfo()

std::ostream & G4Polyhedra::StreamInfo ( std::ostream & os ) const

virtual

Reimplemented from G4VCSGfaceted.

Definition at line 762 of file G4Polyhedra.cc.

{
  G4int oldprc = os.precision(16);
  os << "-----------------------------------------------------------\n"
     << "    *** Dump for solid - " << GetName() << " ***\n"
     << "    ===================================================\n"
     << " Solid type: G4Polyhedra\n"
     << " Parameters: \n"
     << "    starting phi angle : " << startPhi/degree << " degrees \n"
     << "    ending phi angle   : " << endPhi/degree << " degrees \n"
     << "    number of sides    : " << numSide << " \n";
  G4int i=0;
  if (!genericPgon)
  {
    G4int numPlanes = original_parameters->Num_z_planes;
    os << "    number of Z planes: " << numPlanes << "\n"
       << "              Z values: \n";
    for (i=0; i<numPlanes; ++i)
    {
      os << "              Z plane " << i << ": "
         << original_parameters->Z_values[i] << "\n";
    }
    os << "              Tangent distances to inner surface (Rmin): \n";
    for (i=0; i<numPlanes; ++i)
    {
      os << "              Z plane " << i << ": "
         << original_parameters->Rmin[i] << "\n";
    }
    os << "              Tangent distances to outer surface (Rmax): \n";
    for (i=0; i<numPlanes; ++i)
    {
      os << "              Z plane " << i << ": "
         << original_parameters->Rmax[i] << "\n";
    }
  }
  os << "    number of RZ points: " << numCorner << "\n"
     << "              RZ values (corners): \n";
     for (i=0; i<numCorner; ++i)
     {
       os << "                         "
          << corners[i].r << ", " << corners[i].z << "\n";
     }
  os << "-----------------------------------------------------------\n";
  os.precision(oldprc);
 
  return os;
}

Member Data Documentation

◆ corners

G4PolyhedraSideRZ* G4Polyhedra::corners = nullptr

protected

Definition at line 188 of file G4Polyhedra.hh.

Referenced by CopyStuff(), Create(), CreatePolyhedron(), operator=(), Reset(), SetOriginalParameters(), StreamInfo(), and ~G4Polyhedra().

◆ enclosingCylinder

G4EnclosingCylinder* G4Polyhedra::enclosingCylinder = nullptr

protected

Definition at line 191 of file G4Polyhedra.hh.

Referenced by CopyStuff(), Create(), DistanceToIn(), Inside(), operator=(), Reset(), and ~G4Polyhedra().

◆ endPhi

G4double G4Polyhedra::endPhi

protected

Definition at line 184 of file G4Polyhedra.hh.

Referenced by CopyStuff(), Create(), CreatePolyhedron(), SetOriginalParameters(), and StreamInfo().

◆ fElements

std::vector<surface_element>* G4Polyhedra::fElements = nullptr

mutableprotected

Definition at line 194 of file G4Polyhedra.hh.

Referenced by CopyStuff(), GetPointOnSurface(), Reset(), SetSurfaceElements(), and ~G4Polyhedra().

◆ genericPgon

G4bool G4Polyhedra::genericPgon = false

protected

Definition at line 186 of file G4Polyhedra.hh.

Referenced by CopyStuff(), CreatePolyhedron(), Reset(), and StreamInfo().

◆ numCorner

G4int G4Polyhedra::numCorner = 0

protected

Definition at line 187 of file G4Polyhedra.hh.

Referenced by CopyStuff(), Create(), CreatePolyhedron(), SetOriginalParameters(), and StreamInfo().

◆ numSide

G4int G4Polyhedra::numSide = 0

protected

Definition at line 182 of file G4Polyhedra.hh.

Referenced by CopyStuff(), Create(), CreatePolyhedron(), SetOriginalParameters(), and StreamInfo().

◆ original_parameters

G4PolyhedraHistorical* G4Polyhedra::original_parameters = nullptr

protected

Definition at line 189 of file G4Polyhedra.hh.

Referenced by CopyStuff(), CreatePolyhedron(), G4Polyhedra(), operator=(), Reset(), SetOriginalParameters(), StreamInfo(), and ~G4Polyhedra().

◆ phiIsOpen

G4bool G4Polyhedra::phiIsOpen = false

protected

Definition at line 185 of file G4Polyhedra.hh.

Referenced by CopyStuff(), Create(), and CreatePolyhedron().

◆ startPhi

G4double G4Polyhedra::startPhi

protected

Definition at line 183 of file G4Polyhedra.hh.

Referenced by CopyStuff(), Create(), CreatePolyhedron(), SetOriginalParameters(), and StreamInfo().

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

Classes

Public Member Functions

Protected Member Functions

Protected Attributes

Detailed Description

Constructor & Destructor Documentation

◆ G4Polyhedra() [1/4]

◆ G4Polyhedra() [2/4]

◆ ~G4Polyhedra()

◆ G4Polyhedra() [3/4]

◆ G4Polyhedra() [4/4]

Member Function Documentation

◆ BoundingLimits()

◆ CalculateExtent()

◆ Clone()

◆ ComputeDimensions()

◆ CopyStuff()

◆ Create()

◆ CreatePolyhedron()

◆ DeleteStuff()

◆ DistanceToIn() [1/2]

◆ DistanceToIn() [2/2]

◆ GetCorner()

◆ GetCosEndPhi()

◆ GetCosStartPhi()

◆ GetCubicVolume()

◆ GetEndPhi()

◆ GetEntityType()

◆ GetNumRZCorner()

◆ GetNumSide()

◆ GetOriginalParameters()

◆ GetPointOnSurface()

◆ GetSinEndPhi()

◆ GetSinStartPhi()

◆ GetStartPhi()

◆ GetSurfaceArea()

◆ Inside()

◆ IsGeneric()

◆ IsOpen()

◆ operator=()

◆ Reset()

◆ SetOriginalParameters() [1/2]

◆ SetOriginalParameters() [2/2]

◆ SetSurfaceElements()

◆ StreamInfo()

Member Data Documentation

◆ corners

◆ enclosingCylinder

◆ endPhi

◆ fElements

◆ genericPgon

◆ numCorner

◆ numSide

◆ original_parameters

◆ phiIsOpen

◆ startPhi