#include <G4GenericPolycone.hh>

Inheritance diagram for G4GenericPolycone:

Classes
struct	surface_element

Public Member Functions
	G4GenericPolycone (const G4String &name, G4double phiStart, G4double phiTotal, G4int numRZ, const G4double r[], const G4double z[])

	~G4GenericPolycone () override

EInside	Inside (const G4ThreeVector &p) const override

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

G4double	DistanceToIn (const G4ThreeVector &p) const override

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

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

G4double	GetCubicVolume () override

G4double	GetSurfaceArea () override

G4ThreeVector	GetPointOnSurface () const override

G4GeometryType	GetEntityType () const override

G4VSolid *	Clone () const override

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

G4Polyhedron *	CreatePolyhedron () const override

G4bool	Reset ()

G4double	GetStartPhi () const

G4double	GetEndPhi () const

G4double	GetSinStartPhi () const

G4double	GetCosStartPhi () const

G4double	GetSinEndPhi () const

G4double	GetCosEndPhi () const

G4bool	IsOpen () const

G4int	GetNumRZCorner () const

G4PolyconeSideRZ	GetCorner (G4int index) const

	G4GenericPolycone (__void__ &)

	G4GenericPolycone (const G4GenericPolycone &source)

G4GenericPolycone &	operator= (const G4GenericPolycone &source)

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

virtual	~G4VCSGfaceted ()

	G4VCSGfaceted (const G4VCSGfaceted &source)

G4VCSGfaceted &	operator= (const G4VCSGfaceted &source)

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

EInside	Inside (const G4ThreeVector &p) const override

G4ThreeVector	SurfaceNormal (const G4ThreeVector &p) const override

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

G4double	DistanceToIn (const G4ThreeVector &p) const override

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

G4double	DistanceToOut (const G4ThreeVector &p) const override

G4GeometryType	GetEntityType () const override

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

void	DescribeYourselfTo (G4VGraphicsScene &scene) const override

G4VisExtent	GetExtent () const override

G4Polyhedron *	GetPolyhedron () const override

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)

G4double	GetCubicVolume () override

G4double	GetSurfaceArea () override

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

void	DumpInfo () 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	Create (G4double phiStart, G4double phiTotal, G4ReduciblePolygon *rz)

void	CopyStuff (const G4GenericPolycone &source)

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
G4double	startPhi

G4double	endPhi

G4bool	phiIsOpen = false

G4int	numCorner

G4PolyconeSideRZ *	corners = 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 65 of file G4GenericPolycone.hh.

Constructor & Destructor Documentation

◆ G4GenericPolycone() [1/3]

G4GenericPolycone::G4GenericPolycone	(	const G4String &	name,
		G4double	phiStart,
		G4double	phiTotal,
		G4int	numRZ,
		const G4double	r[],
		const G4double	z[] )

Definition at line 59 of file G4GenericPolycone.cc.

  : G4VCSGfaceted( name )
{
 
  auto rz = new G4ReduciblePolygon( r, z, numRZ );
 
  Create( phiStart, phiTotal, rz );
 
  // Set original_parameters struct for consistency
  //
  //SetOriginalParameters(rz);
 
  delete rz;
}

Referenced by Clone().

◆ ~G4GenericPolycone()

G4GenericPolycone::~G4GenericPolycone ( )

override

Definition at line 259 of file G4GenericPolycone.cc.

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

◆ G4GenericPolycone() [2/3]

G4GenericPolycone::G4GenericPolycone ( __void__ & a )

Definition at line 252 of file G4GenericPolycone.cc.

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

◆ G4GenericPolycone() [3/3]

G4GenericPolycone::G4GenericPolycone ( const G4GenericPolycone & source )

Definition at line 273 of file G4GenericPolycone.cc.

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

Member Function Documentation

◆ BoundingLimits()

void G4GenericPolycone::BoundingLimits	(	G4ThreeVector &	pMin,
		G4ThreeVector &	pMax ) const

overridevirtual

Reimplemented from G4VSolid.

Definition at line 402 of file G4GenericPolycone.cc.

{
  G4double rmin = kInfinity, rmax = -kInfinity;
  G4double zmin = kInfinity, zmax = -kInfinity;
 
  for (G4int i=0; i<GetNumRZCorner(); ++i)
  {
    G4PolyconeSideRZ 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;
  }
 
  if (IsOpen())
  {
    G4TwoVector vmin,vmax;
    G4GeomTools::DiskExtent(rmin,rmax,
                            GetSinStartPhi(),GetCosStartPhi(),
                            GetSinEndPhi(),GetCosEndPhi(),
                            vmin,vmax);
    pMin.set(vmin.x(),vmin.y(),zmin);
    pMax.set(vmax.x(),vmax.y(),zmax);
  }
  else
  {
    pMin.set(-rmax,-rmax, zmin);
    pMax.set( rmax, rmax, 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("GenericG4Polycone::BoundingLimits()", "GeomMgt0001",
                JustWarning, message);
    DumpInfo();
  }
}

Referenced by CalculateExtent().

◆ CalculateExtent()

G4bool G4GenericPolycone::CalculateExtent	(	const EAxis	pAxis,
		const G4VoxelLimits &	pVoxelLimit,
		const G4AffineTransform &	pTransform,
		G4double &	pmin,
		G4double &	pmax ) const

overridevirtual

Implements G4VSolid.

Definition at line 453 of file G4GenericPolycone.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;
  }
 
  // 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;
  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)
  {
    G4PolyconeSideRZ corner = GetCorner(i);
    contourRZ.emplace_back(corner.r,corner.z);
  }
  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("G4GenericPolycone::CalculateExtent()",
                "GeomMgt1002", JustWarning, message);
    return bbox.CalculateExtent(pAxis,pVoxelLimit,pTransform,pMin,pMax);
  }
 
  // set trigonometric values
  const G4int NSTEPS = 24;            // number of steps for whole circle
  G4double astep  = twopi/NSTEPS;     // max angle for one step
 
  G4double sphi   = GetStartPhi();
  G4double ephi   = GetEndPhi();
  G4double dphi   = IsOpen() ? ephi-sphi : twopi;
  G4int    ksteps = (dphi <= astep) ? 1 : (G4int)((dphi-deg)/astep) + 1;
  G4double ang    = dphi/ksteps;
 
  G4double sinHalf = std::sin(0.5*ang);
  G4double cosHalf = std::cos(0.5*ang);
  G4double sinStep = 2.*sinHalf*cosHalf;
  G4double cosStep = 1. - 2.*sinHalf*sinHalf;
 
  G4double sinStart = GetSinStartPhi();
  G4double cosStart = GetCosStartPhi();
  G4double sinEnd   = GetSinEndPhi();
  G4double cosEnd   = GetCosEndPhi();
 
  // define vectors and arrays
  std::vector<const G4ThreeVectorList *> polygons;
  polygons.resize(ksteps+2);
  G4ThreeVectorList pols[NSTEPS+2];
  for (G4int k=0; k<ksteps+2; ++k) pols[k].resize(6);
  for (G4int k=0; k<ksteps+2; ++k) polygons[k] = &pols[k];
  G4double r0[6],z0[6]; // contour with original edges of triangle
  G4double r1[6];       // shifted radii of external edges of triangle
 
  // main loop along triangles
  pMin = kInfinity;
  pMax =-kInfinity;
  G4int ntria = (G4int)triangles.size()/3;
  for (G4int i=0; i<ntria; ++i)
  {
    G4int i3 = i*3;
    for (G4int k=0; k<3; ++k)
    {
      G4int e0 = i3+k, e1 = (k<2) ? e0+1 : i3;
      G4int k2 = k*2;
      // set contour with original edges of triangle
      r0[k2+0] = triangles[e0].x(); z0[k2+0] = triangles[e0].y();
      r0[k2+1] = triangles[e1].x(); z0[k2+1] = triangles[e1].y();
      // set shifted radii
      r1[k2+0] = r0[k2+0];
      r1[k2+1] = r0[k2+1];
      if (z0[k2+1] - z0[k2+0] <= 0) continue;
      r1[k2+0] /= cosHalf;
      r1[k2+1] /= cosHalf;
    }
 
    // rotate countour, set sequence of 6-sided polygons
    G4double sinCur = sinStart*cosHalf + cosStart*sinHalf;
    G4double cosCur = cosStart*cosHalf - sinStart*sinHalf;
    for (G4int j=0; j<6; ++j)
    {
      pols[0][j].set(r0[j]*cosStart,r0[j]*sinStart,z0[j]);
    }
    for (G4int k=1; k<ksteps+1; ++k)
    {
      for (G4int j=0; j<6; ++j)
      {
        pols[k][j].set(r1[j]*cosCur,r1[j]*sinCur,z0[j]);
      }
      G4double sinTmp = sinCur;
      sinCur = sinCur*cosStep + cosCur*sinStep;
      cosCur = cosCur*cosStep - sinTmp*sinStep;
    }
    for (G4int j=0; j<6; ++j)
    {
      pols[ksteps+1][j].set(r0[j]*cosEnd,r0[j]*sinEnd,z0[j]);
    }
 
    // 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) return true; // max possible extent
  }
  return (pMin < pMax);
}

◆ Clone()

G4VSolid * G4GenericPolycone::Clone ( ) const

overridevirtual

Reimplemented from G4VSolid.

Definition at line 598 of file G4GenericPolycone.cc.

{
  return new G4GenericPolycone(*this);
}

◆ CopyStuff()

void G4GenericPolycone::CopyStuff ( const G4GenericPolycone & source )

protected

Definition at line 300 of file G4GenericPolycone.cc.

{
  //
  // Simple stuff
  //
  startPhi  = source.startPhi;
  endPhi    = source.endPhi;
  phiIsOpen = source.phiIsOpen;
  numCorner = source.numCorner;
 
  //
  // The corner array
  //
  corners = new G4PolyconeSideRZ[numCorner];
 
  G4PolyconeSideRZ  *corn = corners,
        *sourceCorn = source.corners;
  do    // Loop checking, 13.08.2015, G.Cosmo
  {
    *corn = *sourceCorn;
  } while( ++sourceCorn, ++corn < corners+numCorner );
 
  //
  // Enclosing cylinder
  //
  enclosingCylinder = new G4EnclosingCylinder( *source.enclosingCylinder );
 
  //
  // Surface elements
  //
  delete fElements;
  fElements = nullptr;
 
  // Polyhedron
  //
  fRebuildPolyhedron = false;
  delete fpPolyhedron;
  fpPolyhedron = nullptr;
}

Referenced by G4GenericPolycone(), and operator=().

◆ Create()

void G4GenericPolycone::Create	(	G4double	phiStart,
		G4double	phiTotal,
		G4ReduciblePolygon *	rz )

protected

Definition at line 84 of file G4GenericPolycone.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("G4GenericPolycone::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("G4GenericPolycone::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("G4GenericPolycone::Create()", "GeomSolids0002",
                FatalErrorInArgument, message);
  }
 
  if (rz->CrossesItself(1/kInfinity))
  {
    std::ostringstream message;
    message << "Illegal input parameters - " << GetName() << G4endl
            << "        R/Z segments cross !";
    G4Exception("G4GenericPolycone::Create()", "GeomSolids0002",
                FatalErrorInArgument, message);
  }
 
  numCorner = rz->NumVertices();
 
  //
  // Phi opening? Account for some possible roundoff, and interpret
  // nonsense value as representing no phi opening
  //
  if (phiTotal <= 0 || phiTotal > twopi-1E-10)
  {
    phiIsOpen = false;
    startPhi = 0;
    endPhi = twopi;
  }
  else
  {
    phiIsOpen = true;
 
    //
    // Convert phi into our convention
    //
    startPhi = phiStart;
    while( startPhi < 0 )    // Loop checking, 13.08.2015, G.Cosmo
      startPhi += twopi;
 
    endPhi = phiStart+phiTotal;
    while( endPhi < startPhi )    // Loop checking, 13.08.2015, G.Cosmo
      endPhi += twopi;
  }
 
  //
  // Allocate corner array.
  //
  corners = new G4PolyconeSideRZ[numCorner];
 
  //
  // Copy corners
  //
  G4ReduciblePolygonIterator iterRZ(rz);
 
  G4PolyconeSideRZ* 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 conical faces
  //
  // But! Don't construct a face if both points are at zero radius!
  //
  G4PolyconeSideRZ *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.
    //
    G4bool allBehind;
    if (corner->z > next->z)
    {
      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 G4PolyconeSide( prev, corner, next, nextNext,
                startPhi, endPhi-startPhi, phiIsOpen, allBehind );
  } while( prev=corner, corner=next, corner > corners );
 
  if (phiIsOpen)
  {
    //
    // Construct phi open edges
    //
    *face++ = new G4PolyPhiFace( rz, startPhi, 0, endPhi  );
    *face++ = new G4PolyPhiFace( rz, endPhi,   0, startPhi );
  }
 
  //
  // We might have dropped a face or two: recalculate numFace
  //
  numFace = (G4int)(face-faces);
 
  //
  // Make enclosingCylinder
  //
  enclosingCylinder =
    new G4EnclosingCylinder( rz, phiIsOpen, phiStart, phiTotal );
}

Referenced by G4GenericPolycone().

◆ CreatePolyhedron()

G4Polyhedron * G4GenericPolycone::CreatePolyhedron ( ) const

overridevirtual

Implements G4VCSGfaceted.

Definition at line 825 of file G4GenericPolycone.cc.

{
  std::vector<G4TwoVector> rz(numCorner);
  for (G4int i = 0; i < numCorner; ++i)
    rz[i].set(corners[i].r, corners[i].z);
  return new G4PolyhedronPcon(startPhi, endPhi - startPhi, rz);
}

◆ DistanceToIn() [1/2]

G4double G4GenericPolycone::DistanceToIn ( const G4ThreeVector & p ) const

overridevirtual

Implements G4VSolid.

Definition at line 392 of file G4GenericPolycone.cc.

{
  return G4VCSGfaceted::DistanceToIn(p);
}

◆ DistanceToIn() [2/2]

G4double G4GenericPolycone::DistanceToIn	(	const G4ThreeVector &	p,
		const G4ThreeVector &	v ) const

overridevirtual

Implements G4VSolid.

Definition at line 375 of file G4GenericPolycone.cc.

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

◆ GetCorner()

G4PolyconeSideRZ G4GenericPolycone::GetCorner ( G4int index ) const

inline

Referenced by BoundingLimits(), G4tgbVolume::BuildSolidForDivision(), CalculateExtent(), G4GDMLWriteSolids::GenericPolyconeWrite(), GetCubicVolume(), GetPointOnSurface(), G4tgbGeometryDumper::GetSolidParams(), GetSurfaceArea(), and SetSurfaceElements().

◆ GetCosEndPhi()

G4double G4GenericPolycone::GetCosEndPhi ( ) const

inline

Referenced by BoundingLimits(), and CalculateExtent().

◆ GetCosStartPhi()

G4double G4GenericPolycone::GetCosStartPhi ( ) const

inline

Referenced by BoundingLimits(), and CalculateExtent().

◆ GetCubicVolume()

G4double G4GenericPolycone::GetCubicVolume ( )

overridevirtual

Reimplemented from G4VSolid.

Definition at line 636 of file G4GenericPolycone.cc.

{
  if (fCubicVolume == 0.)
  {
    G4double total = 0.;
    G4int nrz = GetNumRZCorner();
    G4PolyconeSideRZ a = GetCorner(nrz - 1);
    for (G4int i=0; i<nrz; ++i)
    {
      G4PolyconeSideRZ 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)*(GetEndPhi() - GetStartPhi())/6.;
  }
  return fCubicVolume;
}

◆ GetEndPhi()

G4double G4GenericPolycone::GetEndPhi ( ) const

inline

Referenced by G4tgbVolume::BuildSolidForDivision(), CalculateExtent(), G4GDMLWriteSolids::GenericPolyconeWrite(), GetCubicVolume(), GetPointOnSurface(), G4tgbGeometryDumper::GetSolidParams(), GetSurfaceArea(), and SetSurfaceElements().

◆ GetEntityType()

G4GeometryType G4GenericPolycone::GetEntityType ( ) const

overridevirtual

Implements G4VSolid.

Definition at line 589 of file G4GenericPolycone.cc.

{
  return {"G4GenericPolycone"};
}

◆ GetNumRZCorner()

G4int G4GenericPolycone::GetNumRZCorner ( ) const

inline

Referenced by BoundingLimits(), G4tgbVolume::BuildSolidForDivision(), CalculateExtent(), G4GDMLWriteSolids::GenericPolyconeWrite(), GetCubicVolume(), GetPointOnSurface(), G4tgbGeometryDumper::GetSolidParams(), GetSurfaceArea(), and SetSurfaceElements().

◆ GetPointOnSurface()

G4ThreeVector G4GenericPolycone::GetPointOnSurface ( ) const

overridevirtual

Reimplemented from G4VSolid.

Definition at line 760 of file G4GenericPolycone.cc.

{
  // Set surface elements
  if (fElements == nullptr)
  {
    G4AutoLock l(&surface_elementsMutex);
    SetSurfaceElements();
    l.unlock();
  }
 
  // Select surface element
  G4GenericPolycone::surface_element selem;
  selem = fElements->back();
  G4double select = selem.area*G4QuickRand();
  auto it = std::lower_bound(fElements->begin(), fElements->end(), select,
                             [](const G4GenericPolycone::surface_element& x, G4double val)
                             -> G4bool { return x.area < val; });
 
  // Generate random point
  G4double r = 0, z = 0, phi = 0;
  G4double u = G4QuickRand();
  G4double v = G4QuickRand();
  G4int i0 = (*it).i0;
  G4int i1 = (*it).i1;
  G4int i2 = (*it).i2;
  if (i2 < 0) // lateral surface
  {
    G4PolyconeSideRZ p0 = GetCorner(i0);
    G4PolyconeSideRZ p1 = GetCorner(i1);
    if (p1.r < p0.r)
    {
      p0 = GetCorner(i1);
      p1 = GetCorner(i0);
    }
    if (p1.r - p0.r < kCarTolerance) // cylindrical surface
    {
      r = (p1.r - p0.r)*u + p0.r;
      z = (p1.z - p0.z)*u + p0.z;
    }
    else // conical surface
    {
      r = std::sqrt(p1.r*p1.r*u + p0.r*p0.r*(1. - u));
      z = p0.z + (p1.z - p0.z)*(r - p0.r)/(p1.r - p0.r);
    }
    phi = (GetEndPhi() - GetStartPhi())*v + GetStartPhi();
  }
  else // phi cut
  {
    G4int nrz = GetNumRZCorner();
    phi = (i0 < nrz) ? GetStartPhi() : GetEndPhi();
    if (i0 >= nrz) { i0 -= nrz; }
    G4PolyconeSideRZ p0 = GetCorner(i0);
    G4PolyconeSideRZ p1 = GetCorner(i1);
    G4PolyconeSideRZ p2 = GetCorner(i2);
    if (u + v > 1.) { u = 1. - u; v = 1. - v; }
    r = (p1.r - p0.r)*u +  (p2.r - p0.r)*v + p0.r;
    z = (p1.z - p0.z)*u +  (p2.z - p0.z)*v + p0.z;
  }
  return {r*std::cos(phi), r*std::sin(phi), z};
}

◆ GetSinEndPhi()

G4double G4GenericPolycone::GetSinEndPhi ( ) const

inline

Referenced by BoundingLimits(), and CalculateExtent().

◆ GetSinStartPhi()

G4double G4GenericPolycone::GetSinStartPhi ( ) const

inline

Referenced by BoundingLimits(), and CalculateExtent().

◆ GetStartPhi()

G4double G4GenericPolycone::GetStartPhi ( ) const

inline

Referenced by G4tgbVolume::BuildSolidForDivision(), CalculateExtent(), G4GDMLWriteSolids::GenericPolyconeWrite(), GetCubicVolume(), GetPointOnSurface(), G4tgbGeometryDumper::GetSolidParams(), GetSurfaceArea(), and SetSurfaceElements().

◆ GetSurfaceArea()

G4double G4GenericPolycone::GetSurfaceArea ( )

overridevirtual

Reimplemented from G4VSolid.

Definition at line 658 of file G4GenericPolycone.cc.

{
  if (fSurfaceArea == 0.)
  {
    // phi cut area
    G4int nrz = GetNumRZCorner();
    G4double scut = 0.;
    if (IsOpen())
    {
      G4PolyconeSideRZ a = GetCorner(nrz - 1);
      for (G4int i=0; i<nrz; ++i)
      {
        G4PolyconeSideRZ b = GetCorner(i);
        scut += a.r*b.z - a.z*b.r;
        a = b;
      }
      scut = std::abs(scut);
    }
    // lateral surface area
    G4double slat = 0;
    G4PolyconeSideRZ a = GetCorner(nrz - 1);
    for (G4int i=0; i<nrz; ++i)
    {
      G4PolyconeSideRZ b = GetCorner(i);
      G4double h = std::sqrt((b.r - a.r)*(b.r - a.r) + (b.z - a.z)*(b.z - a.z));
      slat += (b.r + a.r)*h;
      a = b;
    }
    slat *= (GetEndPhi() - GetStartPhi())/2.;
    fSurfaceArea = scut + slat;
  }
  return fSurfaceArea;
}

◆ Inside()

EInside G4GenericPolycone::Inside ( const G4ThreeVector & p ) const

overridevirtual

Implements G4VSolid.

Definition at line 357 of file G4GenericPolycone.cc.

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

◆ IsOpen()

G4bool G4GenericPolycone::IsOpen ( ) const

inline

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

◆ operator=()

G4GenericPolycone & G4GenericPolycone::operator= ( const G4GenericPolycone & source )

Definition at line 282 of file G4GenericPolycone.cc.

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

◆ Reset()

G4bool G4GenericPolycone::Reset ( )

Definition at line 342 of file G4GenericPolycone.cc.

{
  std::ostringstream message;
  message << "Solid " << GetName() << " built using generic construct."
          << G4endl << "Not applicable to the generic construct !";
  G4Exception("G4GenericPolycone::Reset()", "GeomSolids1001",
              JustWarning, message, "Parameters NOT resetted.");
  return true;
}

◆ SetSurfaceElements()

void G4GenericPolycone::SetSurfaceElements ( ) const

protected

Definition at line 697 of file G4GenericPolycone.cc.

{
  fElements = new std::vector<G4GenericPolycone::surface_element>;
  G4double sarea = 0.;
  G4int nrz = GetNumRZCorner();
 
  // set lateral surface elements
  G4double dphi = GetEndPhi() - GetStartPhi();
  G4int ia = nrz - 1;
  for (G4int ib=0; ib<nrz; ++ib)
  {
    G4PolyconeSideRZ a = GetCorner(ia);
    G4PolyconeSideRZ b = GetCorner(ib);
    G4GenericPolycone::surface_element selem;
    selem.i0 = ia;
    selem.i1 = ib;
    selem.i2 = -1;
    ia = ib;
    if (a.r == 0. && b.r == 0.) continue;
    G4double h = std::sqrt((b.r - a.r)*(b.r - a.r) + (b.z - a.z)*(b.z - a.z));
    sarea += 0.5*dphi*(b.r + a.r)*h;
    selem.area = sarea;
    fElements->push_back(selem);
  }
 
  // set elements for phi cuts
  if (IsOpen())
  {
    G4TwoVectorList contourRZ;
    std::vector<G4int> triangles;
    for (G4int i=0; i<nrz; ++i)
    {
      G4PolyconeSideRZ corner = GetCorner(i);
      contourRZ.emplace_back(corner.r, corner.z);
    }
    G4GeomTools::TriangulatePolygon(contourRZ, triangles);
    auto  ntria = (G4int)triangles.size();
    for (G4int i=0; i<ntria; i+=3)
    {
      G4GenericPolycone::surface_element selem;
      selem.i0 = triangles[i];
      selem.i1 = triangles[i+1];
      selem.i2 = triangles[i+2];
      G4PolyconeSideRZ a = GetCorner(selem.i0);
      G4PolyconeSideRZ b = GetCorner(selem.i1);
      G4PolyconeSideRZ c = GetCorner(selem.i2);
      G4double stria =
        std::abs(G4GeomTools::TriangleArea(a.r, a.z, b.r, b.z, c.r, c.z));
      sarea += stria;
      selem.area = sarea;
      fElements->push_back(selem); // start phi
      sarea += stria;
      selem.area = sarea;
      selem.i0 += nrz;
      fElements->push_back(selem); // end phi
    }
  }
}

Referenced by GetPointOnSurface().

◆ StreamInfo()

std::ostream & G4GenericPolycone::StreamInfo ( std::ostream & os ) const

overridevirtual

Implements G4VSolid.

Definition at line 607 of file G4GenericPolycone.cc.

{
  G4long oldprc = os.precision(16);
  os << "-----------------------------------------------------------\n"
     << "    *** Dump for solid - " << GetName() << " ***\n"
     << "    ===================================================\n"
     << " Solid type: G4GenericPolycone\n"
     << " Parameters: \n"
     << "    starting phi angle : " << startPhi/degree << " degrees \n"
     << "    ending phi angle   : " << endPhi/degree << " degrees \n";
  G4int i=0;
 
  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

G4PolyconeSideRZ* G4GenericPolycone::corners = nullptr

protected

Definition at line 147 of file G4GenericPolycone.hh.

Referenced by CopyStuff(), Create(), CreatePolyhedron(), operator=(), StreamInfo(), and ~G4GenericPolycone().

◆ enclosingCylinder

G4EnclosingCylinder* G4GenericPolycone::enclosingCylinder = nullptr

protected

Definition at line 149 of file G4GenericPolycone.hh.

Referenced by CopyStuff(), Create(), DistanceToIn(), Inside(), operator=(), and ~G4GenericPolycone().

◆ endPhi

G4double G4GenericPolycone::endPhi

protected

Definition at line 144 of file G4GenericPolycone.hh.

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

◆ fElements

std::vector<surface_element>* G4GenericPolycone::fElements = nullptr

mutableprotected

Definition at line 152 of file G4GenericPolycone.hh.

Referenced by CopyStuff(), GetPointOnSurface(), SetSurfaceElements(), and ~G4GenericPolycone().

◆ numCorner

G4int G4GenericPolycone::numCorner

protected

Definition at line 146 of file G4GenericPolycone.hh.

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

◆ phiIsOpen

G4bool G4GenericPolycone::phiIsOpen = false

protected

Definition at line 145 of file G4GenericPolycone.hh.

Referenced by CopyStuff(), and Create().

◆ startPhi

G4double G4GenericPolycone::startPhi

protected

Definition at line 143 of file G4GenericPolycone.hh.

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

◆ G4GenericPolycone() [1/3]

◆ ~G4GenericPolycone()

◆ G4GenericPolycone() [2/3]

◆ G4GenericPolycone() [3/3]

Member Function Documentation

◆ BoundingLimits()

◆ CalculateExtent()

◆ Clone()

◆ CopyStuff()

◆ Create()

◆ CreatePolyhedron()

◆ DistanceToIn() [1/2]

◆ DistanceToIn() [2/2]

◆ GetCorner()

◆ GetCosEndPhi()

◆ GetCosStartPhi()

◆ GetCubicVolume()

◆ GetEndPhi()

◆ GetEntityType()

◆ GetNumRZCorner()

◆ GetPointOnSurface()

◆ GetSinEndPhi()

◆ GetSinStartPhi()

◆ GetStartPhi()

◆ GetSurfaceArea()

◆ Inside()

◆ IsOpen()

◆ operator=()

◆ Reset()

◆ SetSurfaceElements()

◆ StreamInfo()

Member Data Documentation

◆ corners

◆ enclosingCylinder

◆ endPhi

◆ fElements

◆ numCorner

◆ phiIsOpen

◆ startPhi