// $Id$
//
// Class AliMUONGeometryConstituent
// --------------------------------
// Helper class for definititon of an assembly of volumes.
//
// Author: Ivana Hrivnacova, IPN Orsay

#ifndef ALI_MUON_GEOMETRY_CONSTITUENT_H
#define ALI_MUON_GEOMETRY_CONSTITUENT_H

#include <TNamed.h>

class TGeoTranslation;
class TGeoRotation;
class TGeoCombiTrans;
class TObjArray;

class AliMUONGeometryConstituent : public TNamed
{
  public:
    AliMUONGeometryConstituent(const TString& name, Int_t copyNo, 
                         Int_t npar, Double_t* param); 
    AliMUONGeometryConstituent(const TString& name, Int_t copyNo, 
                         const TGeoTranslation& translation,
			 Int_t npar, Double_t* param); 
    AliMUONGeometryConstituent(const TString& name, Int_t copyNo, 
                         const TGeoTranslation& translation, 
	  	         const TGeoRotation& rotation,
			 Int_t npar, Double_t* param);
    AliMUONGeometryConstituent();
    AliMUONGeometryConstituent(const AliMUONGeometryConstituent& rhs);
    virtual ~AliMUONGeometryConstituent();

    // operators  
    AliMUONGeometryConstituent& operator = (const AliMUONGeometryConstituent& rhs);
  
    // get methods
    Int_t                  GetCopyNo() const;  
    Int_t                  GetNpar() const;
    Double_t*              GetParam() const;
    const TGeoCombiTrans*  GetTransformation() const;

  private:
    Int_t            fCopyNo;        // copy number
    Int_t            fNpar;          // number of shape parameters
    Double_t*        fParam;         //[fNpar] shape parameters
    TGeoCombiTrans*  fTransformation;// the constituent transformation wrt to the
                                     // envelope
 
  ClassDef(AliMUONGeometryConstituent,1) // MUON chamber geometry base class
};

// inline functions

inline Int_t AliMUONGeometryConstituent::GetCopyNo() const
{ return fCopyNo; }  

inline Int_t AliMUONGeometryConstituent::GetNpar() const
{ return fNpar; }

inline Double_t* AliMUONGeometryConstituent::GetParam() const
{ return fParam; }

inline const TGeoCombiTrans* AliMUONGeometryConstituent::GetTransformation() const 
{ return fTransformation; }

#endif //ALI_MUON_GEOMETRY_CONSTITUENT_H