Intrepid2_DerivedBasis_HGRAD_HEX.hpp

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// @HEADER
// *****************************************************************************
//                           Intrepid2 Package
//
// Copyright 2007 NTESS and the Intrepid2 contributors.
// SPDX-License-Identifier: BSD-3-Clause
// *****************************************************************************
// @HEADER

#ifndef Intrepid2_DerivedBasis_HGRAD_HEX_h
#define Intrepid2_DerivedBasis_HGRAD_HEX_h

#include "Intrepid2_TensorBasis.hpp"

#include "Intrepid2_DerivedBasis_HGRAD_QUAD.hpp"

namespace Intrepid2
{
  // TODO: make this a subclass of TensorBasis3 instead, following what we've done for H(curl) and H(div)
  template<class HGRAD_LINE>
  class Basis_Derived_HGRAD_HEX
  : public Basis_TensorBasis<typename HGRAD_LINE::BasisBase>
  {
  public:
    using ExecutionSpace  = typename HGRAD_LINE::ExecutionSpace;
    using OutputValueType = typename HGRAD_LINE::OutputValueType;
    using PointValueType  = typename HGRAD_LINE::PointValueType;
    
    using OutputViewType = typename HGRAD_LINE::OutputViewType;
    using PointViewType  = typename HGRAD_LINE::PointViewType ;
    using ScalarViewType = typename HGRAD_LINE::ScalarViewType;
    
    using LineBasis = HGRAD_LINE;
    using QuadBasis = Intrepid2::Basis_Derived_HGRAD_QUAD<HGRAD_LINE>;
    using BasisBase = typename HGRAD_LINE::BasisBase;
    using TensorBasis = Basis_TensorBasis<BasisBase>;

    std::string name_;
    ordinal_type order_x_;
    ordinal_type order_y_;
    ordinal_type order_z_;
    EPointType pointType_;

    Basis_Derived_HGRAD_HEX(int polyOrder_x, int polyOrder_y, int polyOrder_z, const EPointType pointType=POINTTYPE_DEFAULT)
    :
    TensorBasis(Teuchos::rcp( new QuadBasis(polyOrder_x,polyOrder_y, pointType)),
                Teuchos::rcp( new LineBasis(polyOrder_z, pointType)))
    {
      this->functionSpace_ = FUNCTION_SPACE_HGRAD;

      std::ostringstream basisName;
      basisName << "HGRAD_HEX (" << this->TensorBasis::getName() << ")";
      name_ = basisName.str();

      order_x_ = polyOrder_x;
      order_y_ = polyOrder_y;
      order_z_ = polyOrder_z;
      pointType_ = pointType;
      
      this->setShardsTopologyAndTags();
    }

    
    Basis_Derived_HGRAD_HEX(int polyOrder, const EPointType pointType=POINTTYPE_DEFAULT) :
      Basis_Derived_HGRAD_HEX(polyOrder, polyOrder, polyOrder, pointType) {}


    virtual bool requireOrientation() const override {
      return (this->getDofCount(1,0) > 1); //if it has more than 1 DOF per edge, then it needs orientations
    }

    using BasisBase::getValues;

    virtual
    const char*
    getName() const override {
      return name_.c_str();
    }

    Teuchos::RCP<BasisBase>
      getSubCellRefBasis(const ordinal_type subCellDim, const ordinal_type subCellOrd) const override{
      if(subCellDim == 1) {
        switch(subCellOrd) {
        case 0:
        case 2:
        case 4:
        case 6:
          return Teuchos::rcp( new LineBasis(order_x_, pointType_) );
        case 1:
        case 3:
        case 5:
        case 7:
          return Teuchos::rcp( new LineBasis(order_y_, pointType_) );
        case 8:
        case 9:
        case 10:
        case 11:
          return Teuchos::rcp( new LineBasis(order_z_, pointType_) );
        }
      } else if(subCellDim == 2) {
        switch(subCellOrd) {
        case 0:
          return Teuchos::rcp( new QuadBasis(order_x_, order_z_, pointType_) );
        case 1:
          return Teuchos::rcp( new QuadBasis(order_y_,order_z_, pointType_) );
        case 2:
          return Teuchos::rcp( new QuadBasis(order_x_, order_z_, pointType_) );
        case 3:
          return Teuchos::rcp( new QuadBasis(order_z_, order_y_, pointType_) );
        case 4:
          return Teuchos::rcp( new QuadBasis(order_y_, order_x_, pointType_) );
        case 5:
          return Teuchos::rcp( new QuadBasis(order_x_, order_y_, pointType_) );
        }
      }

      INTREPID2_TEST_FOR_EXCEPTION(true,std::invalid_argument,"Input parameters out of bounds");
    }
    
    virtual HostBasisPtr<OutputValueType, PointValueType>
    getHostBasis() const override {
      using HostBasis  = Basis_Derived_HGRAD_HEX<typename HGRAD_LINE::HostBasis>;
      
      auto hostBasis = Teuchos::rcp(new HostBasis(order_x_, order_y_, order_z_, pointType_));
      
      return hostBasis;
    }
  };
} // end namespace Intrepid2

#endif /* Intrepid2_DerivedBasis_HGRAD_HEX_h */