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// $Id: G4AssemblyTriplet.hh,v 1.6 2003/11/02 14:01:21 gcosmo Exp $
// GEANT4 tag $Name: geant4-06-00 $
//
// 
// Class G4AssemblyTriplet
//
// Class description:
//
// A class to help place logical volumes inside a generic containers (like
// STL vector ) together with information about its rotation and placement.
// How to interpret the rotation and translation depends on the class which
// uses a container of these triplets. The first class using G4AssemblyTriplet
// is G4AssemblyVolume class.
// The pointer to the logical volume is copied so this class does not take
// its ownership and does not delete the object behind.

// Author:      Radovan Chytracek
// Version:     1.0
// Date:        November 2000
// ----------------------------------------------------------------------
#ifndef G4_ASSEMBLYTRIPLET_H
#define G4_ASSEMBLYTRIPLET_H 

#include "G4ThreeVector.hh"
#include "G4RotationMatrix.hh"

class G4LogicalVolume;

class G4AssemblyTriplet
{
 public:  // with description

    G4AssemblyTriplet();
      // Default constructor

    G4AssemblyTriplet( G4LogicalVolume* pVolume,
                       G4ThreeVector& translation,
                       G4RotationMatrix* pRotation);
      // An explicit constructor
    
    G4AssemblyTriplet( const G4AssemblyTriplet& second );
      // Copy constructor

    ~G4AssemblyTriplet();    
      // Destructor

    G4AssemblyTriplet& operator=( const G4AssemblyTriplet& second );
      // Assignment operator

    G4LogicalVolume* GetVolume() const;
      // Retrieve the logical volume reference

    void SetVolume( G4LogicalVolume* pVolume );
      // Update the logical volume reference

    G4ThreeVector GetTranslation() const;
      // Retrieve the logical volume translation

    void SetTranslation( G4ThreeVector& pVolume );
      // Update the logical volume translation

    G4RotationMatrix* GetRotation() const;
      // Retrieve the logical volume rotation

    void SetRotation( G4RotationMatrix* pVolume );
      // Update the logical volume rotation
   

 private:

    G4LogicalVolume*  fVolume;
      // A logical volume

    G4ThreeVector     fTranslation;
      // A logical volume translation

    G4RotationMatrix* fRotation;
      // A logical volume rotation
};

#include "G4AssemblyTriplet.icc"

#endif // G4_ASSEMBLYTRIPLET_H