G4GenericPolycone.hh

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// G4GenericPolycone
//
// Class description:
//
//   Class implementing a GenericPolycone constructed by points with
//          (r,z)coordinates, allows Z 'go back'
//
//
//   G4GenericPolycone( const G4String& name,
//               G4double phiStart,   // initial phi starting angle
//               G4double phiTotal,   // total phi angle
//               G4int    numRZ,      // number corners in r,z space
//               const G4double r[],  // r coordinate of these corners
//               const G4double z[])  // z coordinate of these corners
//
 
// Authors: T.Nikitina, G.Cosmo - CERN
// --------------------------------------------------------------------
#ifndef G4GENERICPOLYCONE_HH
#define G4GENERICPOLYCONE_HH
 
#include "G4GeomTypes.hh"
 
#if defined(G4GEOM_USE_USOLIDS)
#define G4GEOM_USE_UGENERICPOLYCONE 1
#endif
 
#if defined(G4GEOM_USE_UGENERICPOLYCONE)
  #define G4UGenericPolycone G4GenericPolycone
  #include "G4UGenericPolycone.hh"
#else
 
#include "G4VCSGfaceted.hh"
#include "G4PolyconeSide.hh"
 
class G4EnclosingCylinder;
class G4ReduciblePolygon;
class G4VCSGface;
 
class G4GenericPolycone : public G4VCSGfaceted
{
 
 public:  // with description
 
  G4GenericPolycone( const G4String& name,
                    G4double phiStart,    // initial phi starting angle
                    G4double phiTotal,    // total phi angle
                    G4int    numRZ,       // number corners in r,z space
                    const G4double r[],         // r coordinate of these corners
                    const G4double z[]       ); // z coordinate of these corners
 
  virtual ~G4GenericPolycone();
 
  // Methods for solid
 
  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;
 
  G4double GetCubicVolume();
  G4double GetSurfaceArea();
 
  G4ThreeVector GetPointOnSurface() const;
 
  G4GeometryType GetEntityType() const;
 
  G4VSolid* Clone() const;
 
  std::ostream& StreamInfo(std::ostream& os) const;
 
  G4Polyhedron* CreatePolyhedron() const;
 
  G4bool Reset();
 
  // Accessors
 
  inline G4double GetStartPhi()    const;
  inline G4double GetEndPhi()      const;
  inline G4double GetSinStartPhi() const;
  inline G4double GetCosStartPhi() const;
  inline G4double GetSinEndPhi()   const;
  inline G4double GetCosEndPhi()   const;
  inline G4bool IsOpen()           const;
  inline G4int  GetNumRZCorner()   const;
  inline G4PolyconeSideRZ GetCorner(G4int index) const;
 
 public:  // without description
 
  G4GenericPolycone(__void__&);
    // Fake default constructor for usage restricted to direct object
    // persistency for clients requiring preallocation of memory for
    // persistifiable objects.
 
  G4GenericPolycone( const G4GenericPolycone& source );
  G4GenericPolycone& operator=( const G4GenericPolycone& source );
    // Copy constructor and assignment operator.
 
 protected:  // without description
 
  // Generic initializer, called by all constructors
 
  void Create( G4double phiStart,        // initial phi starting angle
               G4double phiTotal,        // total phi angle
               G4ReduciblePolygon* rz ); // r/z coordinate of these corners
 
  void CopyStuff( const G4GenericPolycone& source );
 
  // Methods for random point generation
 
  void SetSurfaceElements() const;
 
 protected:  // without description
 
  // Here are our parameters
 
  G4double startPhi;            // Starting phi value (0 < phiStart < 2pi)
  G4double endPhi;              // end phi value (0 < endPhi-phiStart < 2pi)
  G4bool   phiIsOpen = false;   // true if there is a phi segment
  G4int    numCorner;           // number RZ points
  G4PolyconeSideRZ* corners = nullptr;  // corner r,z points
 
  G4EnclosingCylinder* enclosingCylinder = nullptr; // Our quick test
 
  struct surface_element { G4double area = 0.; G4int i0 = 0, i1 = 0, i2 = 0; };
  mutable std::vector<surface_element>* fElements = nullptr;
};
 
#include "G4GenericPolycone.icc"
 
#endif
 
#endif