/afs/cern.ch/work/a/aaltunda/public/www/CMSSW_6_2_7/src/DetectorDescription/Core/interface/DDMaterial.h

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#ifndef DDMaterial_h
#define DDMaterial_h

#include <iostream>
#include <vector>
#include <utility>
#include "DetectorDescription/Core/interface/DDName.h"
#include "DetectorDescription/Core/interface/DDBase.h"

namespace DDI { class Material; }


class DDMaterial : public DDBase<DDName,DDI::Material*>
{
  friend std::ostream & operator<<(std::ostream &, const DDMaterial &);
  
public:
  typedef std::vector<std::pair<DDMaterial,double> > FractionV;
  
  DDMaterial();
  
  DDMaterial(const DDName & name);

  DDMaterial(const DDName & name, double z, double a, double d);
  
  DDMaterial(const DDName & name, double density);
  
  int noOfConstituents() const;
  
  FractionV::value_type constituent(int i) const; 
  
  int addMaterial(const DDMaterial & m, double fm); 
  
  double a() const; 
  
  double z() const; 
  
  double density() const;
};

std::ostream & operator<<(std::ostream &, const DDMaterial &);

#endif