G4UTrap.cc

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//
//
// $Id:$
//
// 
// Implementation for G4UTrap wrapper class
// --------------------------------------------------------------------

#include "G4Trap.hh"
#include "G4UTrap.hh"

#if defined(G4GEOM_USE_USOLIDS)

#include "G4VPVParameterisation.hh"
#include "G4Polyhedron.hh"

//
// Constructors
//
G4UTrap::G4UTrap( const G4String& pName,
                        G4double pdz,
                        G4double pTheta, G4double pPhi,
                        G4double pdy1, G4double pdx1, G4double pdx2,
                        G4double pAlp1,
                        G4double pdy2, G4double pdx3, G4double pdx4,
                        G4double pAlp2 )
  : G4USolid(pName, new UTrap(pName, pdz, pTheta, pPhi,
                              pdy1, pdx1, pdx2, pAlp1, pdy2, pdx3, pdx4, pAlp2))
{
}

G4UTrap::G4UTrap( const G4String& pName,
                  const G4ThreeVector pt[8] )
  : G4USolid(pName, new UTrap(pName))
{
  SetPlanes(pt);
}

G4UTrap::G4UTrap( const G4String& pName,
                        G4double pZ,
                        G4double pY,
                        G4double pX, G4double pLTX )
  : G4USolid(pName, new UTrap(pName, pZ, pY, pX, pLTX))
{
}

G4UTrap::G4UTrap( const G4String& pName,
                        G4double pdx1,  G4double pdx2,
                        G4double pdy1,  G4double pdy2,
                        G4double pdz )
  : G4USolid(pName, new UTrap(pName, pdx1, pdx2, pdy1, pdy2, pdz))
{
}

G4UTrap::G4UTrap(const G4String& pName,
                       G4double pdx, G4double pdy, G4double pdz,
                       G4double pAlpha, G4double pTheta, G4double pPhi )
  : G4USolid(pName, new UTrap(pName, pdx, pdy, pdz, pAlpha, pTheta, pPhi))
{
}

G4UTrap::G4UTrap( const G4String& pName )
  : G4USolid(pName, new UTrap(pName))
{
}

//
// Fake default constructor - sets only member data and allocates memory
//                            for usage restricted to object persistency.
//
G4UTrap::G4UTrap( __void__& a )
  : G4USolid(a)
{
}

//
// Destructor
//
G4UTrap::~G4UTrap()
{
}

//
// Copy constructor
//
G4UTrap::G4UTrap(const G4UTrap& rhs)
  : G4USolid(rhs)
{
}

//
// Assignment operator
//
G4UTrap& G4UTrap::operator = (const G4UTrap& rhs) 
{
   // Check assignment to self
   //
   if (this == &rhs)  { return *this; }

   // Copy base class data
   //
   G4USolid::operator=(rhs);

   return *this;
}

//
// Dispatch to parameterisation for replication mechanism dimension
// computation & modification.
//
void G4UTrap::ComputeDimensions(      G4VPVParameterisation* p,
                                const G4int n,
                                const G4VPhysicalVolume* pRep)
{
  p->ComputeDimensions(*(G4Trap*)this,n,pRep);
}

//
// Make a clone of the object
//
G4VSolid* G4UTrap::Clone() const
{
  return new G4UTrap(*this);
}

//
// CreatePolyhedron()
//
G4Polyhedron* G4UTrap::CreatePolyhedron() const
{
  G4double fTthetaSphi = GetShape()->GetThetaSphi();
  G4double fTthetaCphi = GetShape()->GetThetaCphi();
  G4double phi = std::atan2(fTthetaSphi, fTthetaCphi);
  G4double alpha1 = std::atan(GetTanAlpha1());
  G4double alpha2 = std::atan(GetTanAlpha2());
  G4double theta = std::atan(std::sqrt(fTthetaCphi*fTthetaCphi+fTthetaSphi*fTthetaSphi));

  return new G4PolyhedronTrap(GetZHalfLength(), theta, phi,
                              GetYHalfLength1(),
                              GetXHalfLength1(), GetXHalfLength2(), alpha1,
                              GetYHalfLength2(),
                              GetXHalfLength3(), GetXHalfLength4(), alpha2);
}

#endif  // G4GEOM_USE_USOLIDS