G4VCSGfaceted.hh

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// G4VCSGfaceted
//
// Class description:
//
//   Virtual class defining CSG-like type shape that is built entirely
//   of G4CSGface faces.
 
// Author: David C. Williams ([email protected])
// --------------------------------------------------------------------
#ifndef G4VCSGFACETED_HH
#define G4VCSGFACETED_HH
 
#include "G4VSolid.hh"
 
class G4VCSGface;
class G4VisExtent;
 
class G4VCSGfaceted : public G4VSolid 
{
  public:
 
    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;
 
    G4Polyhedron* CreatePolyhedron() const override = 0;
 
    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;
      // Returns an estimation of the geometrical cubic volume of the
      // solid. Caches the computed value once computed the first time.
    G4double GetSurfaceArea() override;
      // Returns an estimation of the geometrical surface area of the
      // solid. Caches the computed value once computed the first time.
 
    G4VCSGfaceted(__void__&);
      // Fake default constructor for usage restricted to direct object
      // persistency for clients requiring preallocation of memory for
      // persistifiable objects.
 
  protected:
 
    G4int numFace = 0;
    G4VCSGface **faces = nullptr;
    G4double fCubicVolume = 0.0;
    G4double fSurfaceArea = 0.0;
    mutable G4bool fRebuildPolyhedron = false;
    mutable G4Polyhedron* fpPolyhedron = nullptr;
 
    virtual G4double DistanceTo( const G4ThreeVector& p,
                                 const G4bool outgoing ) const;
 
    G4ThreeVector GetPointOnSurfaceGeneric()const;
      // Returns a random point located on the surface of the solid 
      // in case of generic Polycone or generic Polyhedra.
 
    void CopyStuff( const G4VCSGfaceted& source );
    void DeleteStuff();
 
  private:
 
    G4int    fStatistics;
    G4double fCubVolEpsilon;
    G4double fAreaAccuracy;
      // Statistics, error accuracy for volume estimation.
};
 
#endif