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// $Id: G4tgbMaterialMixtureByNoAtoms.hh,v 1.4 2010/10/13 07:56:55 gcosmo Exp $
// GEANT4 tag $Name: geant4-09-04-ref-00 $
//
//
// class G4tgbMaterialMixtureByNoAtoms
//
// Class description:
//
// Class to represent a material whose components are given by number of atoms.

// History:
// - Created.                                 P.Arce, CIEMAT (November 2007)
// -------------------------------------------------------------------------

#ifndef G4tgbMaterialMixtureByNoAtoms_h
#define G4tgbMaterialMixtureByNoAtoms_h

#include "globals.hh"

#include <vector>
#include <string>

#include "G4tgbMaterialMixture.hh"

class G4tgbMaterialMixtureByNoAtoms : public G4tgbMaterialMixture
{

  public:  // with description

    G4tgbMaterialMixtureByNoAtoms( G4tgrMaterial* tgr );
    G4tgbMaterialMixtureByNoAtoms();
   ~G4tgbMaterialMixtureByNoAtoms();

    G4Material* BuildG4Material();
      // Return the associated G4Material and if does not exist build it

    void TransformToFractionsByWeight();

};

#endif