Intrepid2_CubatureTensor.hpp

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#ifndef __INTREPID2_CUBATURE_TENSOR_HPP__
#define __INTREPID2_CUBATURE_TENSOR_HPP__
 
#include "Intrepid2_ConfigDefs.hpp"
#include "Intrepid2_Cubature.hpp"
#include "Intrepid2_CubatureDirect.hpp"
 
namespace Intrepid2 {
 
  template<typename ExecSpaceType = void,
           typename pointValueType = double,
           typename weightValueType = double>
  class CubatureTensor
    : public Cubature<ExecSpaceType,pointValueType,weightValueType> {
  private:
 
    ordinal_type numCubatures_;
 
    CubatureDirect<ExecSpaceType,pointValueType,weightValueType> cubatures_[Parameters::MaxDimension];
 
    ordinal_type dimension_;
 
  public:
 
    template<typename cubPointValueType,  class ...cubPointProperties,
             typename cubWeightValueType, class ...cubWeightProperties>
    void
    getCubatureImpl( Kokkos::DynRankView<cubPointValueType, cubPointProperties...>  cubPoints,
                     Kokkos::DynRankView<cubWeightValueType,cubWeightProperties...> cubWeights ) const;
 
    typedef typename Cubature<ExecSpaceType,pointValueType,weightValueType>::pointViewType  pointViewType;
    typedef typename Cubature<ExecSpaceType,pointValueType,weightValueType>::weightViewType weightViewType;
 
    using Cubature<ExecSpaceType,pointValueType,weightValueType>::getCubature;
 
    virtual
    void
    getCubature( pointViewType  cubPoints,
                 weightViewType cubWeights ) const {
      getCubatureImpl( cubPoints,
                       cubWeights );
    }
 
    virtual
    ordinal_type
    getNumPoints() const {
      ordinal_type numCubPoints = 1;
      for (ordinal_type i=0;i<numCubatures_;++i)
        numCubPoints *= cubatures_[i].getNumPoints();
      return numCubPoints;
    }
 
    virtual
    ordinal_type
    getDimension() const {
      return dimension_;
    }
 
    virtual
    const char*
    getName() const {
      return "CubatureTensor";
    }
 
    virtual
    ordinal_type 
    getAccuracy() const {
      ordinal_type r_val = 0;
      for (ordinal_type i=0;i<numCubatures_;++i)
        r_val = Util<ordinal_type>::max(r_val, cubatures_[i].getAccuracy());
      return r_val;
    }
 
    ordinal_type getNumCubatures() const {
      return numCubatures_;
    }
 
    void getAccuracy( ordinal_type *accuracy ) const {
      for (ordinal_type i=0;i<numCubatures_;++i)
        accuracy[i] = cubatures_[i].getAccuracy();
    }
 
    CubatureTensor() 
      : numCubatures_(0),
        dimension_(0) {}
 
    CubatureTensor(const CubatureTensor &b)
      : numCubatures_(b.numCubatures_),
        dimension_(b.dimension_) {
      for (ordinal_type i=0;i<numCubatures_;++i) 
        cubatures_[i] = b.cubatures_[i];
    }
 
    template<typename CubatureType0,
             typename CubatureType1>
    CubatureTensor( const CubatureType0 cubature0,
                    const CubatureType1 cubature1 )
      : numCubatures_(2),
        dimension_(cubature0.getDimension()+cubature1.getDimension()) {
      cubatures_[0] = cubature0;
      cubatures_[1] = cubature1;
    }
 
    template<typename CubatureType0,
             typename CubatureType1,
             typename CubatureType2>
    CubatureTensor( const CubatureType0 cubature0,
                    const CubatureType1 cubature1,
                    const CubatureType2 cubature2 ) 
      : numCubatures_(3),
        dimension_(cubature0.getDimension()+cubature1.getDimension()+cubature2.getDimension()) {
      cubatures_[0] = cubature0;
      cubatures_[1] = cubature1;
      cubatures_[2] = cubature2;
    }
 
  };
 
 
} // end namespace Intrepid2
 
 
// include templated definitions
#include <Intrepid2_CubatureTensorDef.hpp>
 
#endif