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#ifndef INTREPID_CUBATURE_TENSORSORTED_HPP
#define INTREPID_CUBATURE_TENSORSORTED_HPP

#include "Intrepid_CubatureLineSorted.hpp"

namespace Intrepid {

/* =========================================================================
                       Structure Definition - quadRule
   ========================================================================= */ 
//struct quadInfo { 
  /*
    The quadRule structure contains information about a multidimensional 
    tensor product quadrature rule.  
  */
  //  int dim;          // Number of Spatial Dimensions
  //  int maxlevel;     // Maximum Order of 1D rules
  //  int * rule;       // 1D rules defined in each dimension
  //  int * growth;     // 1D growth rules defined in each dimension
  //  int * np;         // Number of parameters for each 1D rule
  //  double * param;   // Parameters for each 1D rule
  //};

template<class Scalar, class ArrayPoint = FieldContainer<Scalar>, class ArrayWeight = ArrayPoint>
class CubatureTensorSorted : public Intrepid::Cubature<Scalar,ArrayPoint,ArrayWeight> {

private:  
  typename std::map<std::vector<Scalar>,int> points_; // keys = nodes, values = location of weights
  
  std::vector<Scalar> weights_;

  int numPoints_;
  
  std::vector<int> degree_;

  int dimension_;
  
public:

  ~CubatureTensorSorted() {}

  //  CubatureTensorSorted() {}

  CubatureTensorSorted(int numPoints = 0, int dimension = 1);

  CubatureTensorSorted(CubatureLineSorted<Scalar> & cubLine);
 
  CubatureTensorSorted(int dimension, std::vector<int> numPoints1D, std::vector<EIntrepidBurkardt> rule1D, bool isNormalized);

  CubatureTensorSorted(int dimension, std::vector<int> numPoints1D, std::vector<EIntrepidBurkardt> rule1D, std::vector<EIntrepidGrowth> growth1D, bool isNormalized);

  CubatureTensorSorted(int dimension, int maxNumPoints, std::vector<EIntrepidBurkardt> rule1D, std::vector<EIntrepidGrowth> growth1D, bool isNormalized);

  // Access Operator            
  void getCubature(ArrayPoint  & cubPoints,
                   ArrayWeight & cubWeights) const;

  int getNumPoints() const;

  void getAccuracy(std::vector<int> & accuracy) const;

  int getDimension() const;

  typename std::map<std::vector<Scalar>,int>::iterator begin();

  typename std::map<std::vector<Scalar>,int>::iterator end();

  void insert(typename std::map<std::vector<Scalar>,int>::iterator it,        
              std::vector<Scalar> point, Scalar weight);

  std::vector<Scalar> getNode(typename std::map<std::vector<Scalar>,int>::iterator it);

  Scalar getWeight(int node);

  Scalar getWeight(std::vector<Scalar> point);

  void update(Scalar alpha2, CubatureTensorSorted<Scalar> & cubRule2, Scalar alpha1); 

  void normalize();

};

template<class Scalar>
CubatureTensorSorted<Scalar> kron_prod(CubatureTensorSorted<Scalar> & rule1,
                                       CubatureLineSorted<Scalar>   & rule2 );

} // Intrepid Namespace


// include templated definitions
#include <Intrepid_CubatureTensorSortedDef.hpp>

#endif