#include <src/finite_elements/LinearFormsIntegratorsImpl.hpp>

Inheritance diagram for MoFEM::OpGradTimesTensorImpl< 1, SPACE_DIM, SPACE_DIM, S, GAUSS, OpBase >:

Collaboration diagram for MoFEM::OpGradTimesTensorImpl< 1, SPACE_DIM, SPACE_DIM, S, GAUSS, OpBase >:

Public Member Functions
	OpGradTimesTensorImpl (const std::string field_name, boost::shared_ptr< MatrixDouble > mat_vals, ScalarFun beta_coeff=[](double, double, double) constexpr { return 1;}, boost::shared_ptr< Range > ents_ptr=nullptr)

Public Attributes
FTensor::Index< 'i', SPACE_DIM >	i
	summit Index More...

FTensor::Index< 'j', SPACE_DIM >	j
	summit Index More...

Protected Member Functions
MoFEMErrorCode	iNtegrate (EntitiesFieldData::EntData &data)

Protected Attributes
boost::shared_ptr< MatrixDouble >	matVals

ScalarFun	betaCoeff

Detailed Description

template<int SPACE_DIM, int S, typename OpBase>
struct MoFEM::OpGradTimesTensorImpl< 1, SPACE_DIM, SPACE_DIM, S, GAUSS, OpBase >

Definition at line 200 of file LinearFormsIntegratorsImpl.hpp.

Constructor & Destructor Documentation

◆ OpGradTimesTensorImpl()

template<int SPACE_DIM, int S, typename OpBase >

MoFEM::OpGradTimesTensorImpl< 1, SPACE_DIM, SPACE_DIM, S, GAUSS, OpBase >::OpGradTimesTensorImpl	(	const std::string	field_name,
		boost::shared_ptr< MatrixDouble >	mat_vals,
		ScalarFun	beta_coeff = `[](double, double, double) constexpr { return 1; }`,
		boost::shared_ptr< Range >	ents_ptr = `nullptr`
	)

inline

Definition at line 206 of file LinearFormsIntegratorsImpl.hpp.

                                                                   { return 1; },
       boost::shared_ptr<Range> ents_ptr = nullptr)
       : OpBase(field_name, field_name, OpBase::OPROW, ents_ptr),
         matVals(mat_vals), betaCoeff(beta_coeff) {}

Member Function Documentation

◆ iNtegrate()

template<int SPACE_DIM, int S, typename OpBase >

MoFEMErrorCode MoFEM::OpGradTimesTensorImpl< 1, SPACE_DIM, SPACE_DIM, S, GAUSS, OpBase >::iNtegrate ( EntitiesFieldData::EntData & data )

protected

Definition at line 755 of file LinearFormsIntegratorsImpl.hpp.

                                         {
   MoFEMFunctionBegin;
  
   // get element volume
   const double vol = OpBase::getMeasure();
   // get integration weights
   auto t_w = OpBase::getFTensor0IntegrationWeight();
   // get base function gradient on rows
   auto t_row_grad = row_data.getFTensor1DiffN<SPACE_DIM>();
   // get filed gradient values
   auto t_val_grad = getFTensor2FromMat<SPACE_DIM, SPACE_DIM>(*(matVals));
   // get coordinate at integration points
   auto t_coords = OpBase::getFTensor1CoordsAtGaussPts();
   // loop over integration points
   for (int gg = 0; gg != OpBase::nbIntegrationPts; gg++) {
     // take into account Jacobian
     const double alpha =
         t_w * vol * betaCoeff(t_coords(0), t_coords(1), t_coords(2));
     // get rhs vector
     auto t_nf = OpBase::template getNf<SPACE_DIM>();
     // loop over rows base functions
     int rr = 0;
     for (; rr != OpBase::nbRows / SPACE_DIM; rr++) {
       // calculate element of local matrix
       t_nf(i) += alpha * (t_row_grad(j) * t_val_grad(i, j));
       ++t_row_grad; // move to another element of gradient of base
       // function on row
       ++t_nf;
     }
     for (; rr < OpBase::nbRowBaseFunctions; ++rr)
       ++t_row_grad;
  
     ++t_coords;
     ++t_val_grad;
     ++t_w; // move to another integration weight
   }
   MoFEMFunctionReturn(0);
 }