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geant4/source/persistency/geometry/solids/CSG/src/G4PTubs.cc
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2016-06-08 15:34:16 +02:00

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// This code implementation is the intellectual property of
// the GEANT4 collaboration.
//
// By copying, distributing or modifying the Program (or any work
// based on the Program) you indicate your acceptance of this statement,
// and all its terms.
//
// $Id: G4PTubs.cc,v 1.2 1999/11/17 10:49:03 morita Exp $
// GEANT4 tag $Name: geant4-01-01 $
//
//
// class G4PTubs
//
// History:
// 19.06.98 A.Kimura Converted G4Tubs.cc
#include "G4VSolid.hh"
#include "G4PTubs.hh"
#include "G4Tubs.hh"
// Constructor - check parameters, convert angles so 0<sphi+dpshi<=2_PI
// - note if pdphi>2PI then reset to 2PI
G4PTubs::G4PTubs(const G4Tubs* theTubs)
: G4PCSGSolid(theTubs->GetName())
{
G4double pRMin = theTubs->GetInnerRadius();
G4double pRMax = theTubs->GetOuterRadius();
G4double pDz = theTubs->GetZHalfLength();
G4double pSPhi = theTubs->GetStartPhiAngle();
G4double pDPhi = theTubs->GetDeltaPhiAngle();
// Check z-len
if (pDz>0)
{
fDz=pDz;
}
else
{
G4Exception("Error in G4PTubs::G4PTubs - invalid z half-length");
}
// Check radii
if (pRMin<pRMax&&pRMin>=0)
{
fRMin=pRMin; fRMax=pRMax;
}
else
{
G4Exception("Error in G4PTubs::G4PTubs - invalid radii");
}
// Check angles
if (pDPhi>=2.0*M_PI)
{
fDPhi=2*M_PI;
}
else
{
if (pDPhi>0)
{
fDPhi = pDPhi;
}
else
{
G4Exception("Error in G4PTubs::G4PTubs - invalid dphi");
}
}
// Ensure psphi in 0-2PI or -2PI-0 range if shape crosses 0
fSPhi = pSPhi;
if (fSPhi<0)
{
fSPhi=2.0*M_PI-fmod(fabs(fSPhi),2.0*M_PI);
}
else
{
fSPhi=fmod(fSPhi,2.0*M_PI);
}
if (fSPhi+fDPhi>2.0*M_PI)
{
fSPhi-=2.0*M_PI;
}
}
// Destructor
G4PTubs::~G4PTubs()
{;}
// make a transient object
G4VSolid* G4PTubs::MakeTransientObject() const
{
G4VSolid* transientObject = new G4Tubs(GetName(),
fRMin, fRMax,
fDz,
fSPhi, fDPhi);
return transientObject;
}