geant4/source/geometry/solids/CSG/include/G4Cons.icc

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//
// Implementation of inline methods of G4Cons
// --------------------------------------------------------------------

inline
G4double G4Cons::GetInnerRadiusMinusZ() const
{
  return fRmin1 ;
}

inline
G4double G4Cons::GetOuterRadiusMinusZ() const
{
  return fRmax1 ;
}

inline
G4double G4Cons::GetInnerRadiusPlusZ() const
{
  return fRmin2 ;
}

inline
G4double G4Cons::GetOuterRadiusPlusZ() const
{
  return fRmax2 ;
}

inline
G4double G4Cons::GetZHalfLength() const
{
  return fDz ;
}

inline
G4double G4Cons::GetStartPhiAngle() const
{
  return fSPhi ;
}

inline
G4double G4Cons::GetDeltaPhiAngle() const
{
  return fDPhi;
}

inline
G4double G4Cons::GetSinStartPhi() const
{
  return sinSPhi;
}

inline
G4double G4Cons::GetCosStartPhi() const
{
  return cosSPhi;
}

inline
G4double G4Cons::GetSinEndPhi() const
{
  return sinEPhi;
}

inline
G4double G4Cons::GetCosEndPhi() const
{
  return cosEPhi;
}

inline
void G4Cons::Initialize()
{
  fCubicVolume = 0.;
  fSurfaceArea = 0.;
  fRebuildPolyhedron = true;
}

inline
void G4Cons::InitializeTrigonometry()
{
  G4double hDPhi = 0.5*fDPhi;                       // half delta phi
  G4double cPhi  = fSPhi + hDPhi;
  G4double ePhi  = fSPhi + fDPhi;

  sinCPhi    = std::sin(cPhi);
  cosCPhi    = std::cos(cPhi);
  cosHDPhi   = std::cos(hDPhi);
  cosHDPhiIT = std::cos(hDPhi - 0.5*kAngTolerance); // inner/outer tol half dphi
  cosHDPhiOT = std::cos(hDPhi + 0.5*kAngTolerance);
  sinSPhi = std::sin(fSPhi);
  cosSPhi = std::cos(fSPhi);
  sinEPhi = std::sin(ePhi);
  cosEPhi = std::cos(ePhi);
}

inline void G4Cons::CheckSPhiAngle(G4double sPhi)
{
  // Ensure fSphi in 0-2PI or -2PI-0 range if shape crosses 0

  if ( sPhi < 0 )
  {
    fSPhi = CLHEP::twopi - std::fmod(std::fabs(sPhi),CLHEP::twopi);
  }
  else
  {
    fSPhi = std::fmod(sPhi,CLHEP::twopi) ;
  }
  if ( fSPhi+fDPhi > CLHEP::twopi )
  {
    fSPhi -= CLHEP::twopi ;
  }
}

inline void G4Cons::CheckDPhiAngle(G4double dPhi)
{
  fPhiFullCone = true;
  if ( dPhi >= CLHEP::twopi-kAngTolerance*0.5 )
  {
    fDPhi=CLHEP::twopi;
    fSPhi=0;
  }
  else
  {
    fPhiFullCone = false;
    if ( dPhi > 0 )
    {
      fDPhi = dPhi;
    }
    else
    {
      std::ostringstream message;
      message << "Invalid dphi." << G4endl
              << "Negative or zero delta-Phi (" << dPhi << ") in solid: "
              << GetName();
      G4Exception("G4Cons::CheckDPhiAngle()", "GeomSolids0002",
                  FatalException, message);
    }
  }
}

inline void G4Cons::CheckPhiAngles(G4double sPhi, G4double dPhi)
{
  CheckDPhiAngle(dPhi);
  if ( (fDPhi<CLHEP::twopi) && ((sPhi) != 0.0) ) { CheckSPhiAngle(sPhi); }
  InitializeTrigonometry();
}

inline
void G4Cons::SetInnerRadiusMinusZ( G4double Rmin1 )
{
  fRmin1= Rmin1 ;
  Initialize();
}

inline
void G4Cons::SetOuterRadiusMinusZ( G4double Rmax1 )
{
  fRmax1= Rmax1 ;
  Initialize();
}

inline
void G4Cons::SetInnerRadiusPlusZ ( G4double Rmin2 )
{
  fRmin2= Rmin2 ;
  Initialize();
}

inline
void G4Cons::SetOuterRadiusPlusZ ( G4double Rmax2 )
{
  fRmax2= Rmax2 ;
  Initialize();
}

inline
void G4Cons::SetZHalfLength ( G4double newDz )
{
  fDz= newDz ;
  Initialize();
}

inline
void G4Cons::SetStartPhiAngle ( G4double newSPhi, G4bool compute )
{
  // Flag 'compute' can be used to explicitely avoid recomputation of
  // trigonometry in case SetDeltaPhiAngle() is invoked afterwards

  CheckSPhiAngle(newSPhi);
  fPhiFullCone = false;
  if (compute)  { InitializeTrigonometry(); }
  Initialize();
}

void G4Cons::SetDeltaPhiAngle ( G4double newDPhi )
{
  CheckPhiAngles(fSPhi, newDPhi);
  Initialize();
}