G4UnionSolid.hh

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//
// $Id$
//
//
// class G4UnionSolid
//
// Class description:
//
// Class for description of union of two CSG solids.

// History: 
//
// 12.09.98 V.Grichine: created
//
// --------------------------------------------------------------------
#ifndef G4UNIONSOLID_HH
#define G4UNIONSOLID_HH

#include "G4BooleanSolid.hh"
#include "G4VSolid.hh"

#include "G4RotationMatrix.hh"
#include "G4ThreeVector.hh"
#include "G4Transform3D.hh"
#include "G4AffineTransform.hh"

class G4UnionSolid : public G4BooleanSolid
{
  public:  // with description

    G4UnionSolid( const G4String& pName,
                        G4VSolid* pSolidA ,
                        G4VSolid* pSolidB   ) ;

    G4UnionSolid( const G4String& pName,
                        G4VSolid* pSolidA ,
                        G4VSolid* pSolidB ,
                        G4RotationMatrix* rotMatrix,
                  const G4ThreeVector& transVector    ) ;

    G4UnionSolid( const G4String& pName,
                        G4VSolid* pSolidA ,
                        G4VSolid* pSolidB ,
                  const G4Transform3D& transform   ) ;

    virtual ~G4UnionSolid() ;

    G4GeometryType  GetEntityType() const ;

    G4VSolid* Clone() const;

  public:  // without description

    G4UnionSolid(__void__&);
      // Fake default constructor for usage restricted to direct object
      // persistency for clients requiring preallocation of memory for
      // persistifiable objects.

    G4UnionSolid(const G4UnionSolid& rhs);
    G4UnionSolid& operator=(const G4UnionSolid& rhs);
      // Copy constructor and assignment operator.

    G4bool CalculateExtent( const EAxis pAxis,
                            const G4VoxelLimits& pVoxelLimit,
                            const G4AffineTransform& pTransform,
                                  G4double& pMin, G4double& pMax ) const ;
       
    EInside Inside( const G4ThreeVector& p ) const ;

    G4ThreeVector SurfaceNormal( const G4ThreeVector& p ) const ;

    G4double DistanceToIn( const G4ThreeVector& p,
                           const G4ThreeVector& v  ) const ;

    G4double DistanceToIn( const G4ThreeVector& p ) const ;

    G4double DistanceToOut( const G4ThreeVector& p,
                            const G4ThreeVector& v,
                            const G4bool calcNorm=false,
                                  G4bool *validNorm=0,
                                  G4ThreeVector *n=0 ) const ;

    G4double DistanceToOut( const G4ThreeVector& p ) const ;


    void ComputeDimensions(       G4VPVParameterisation* p,
                            const G4int n,
                            const G4VPhysicalVolume* pRep ) ;
                                   
    void DescribeYourselfTo ( G4VGraphicsScene& scene ) const ;
    G4Polyhedron* CreatePolyhedron () const ;
    G4NURBS*      CreateNURBS      () const ;

};

#endif

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