#include <src/finite_elements/BiLinearFormsIntegrators.hpp>

Inheritance diagram for MoFEM::OpGradGradImpl< 1, FIELD_DIM, SPACE_DIM, GAUSS, OpBase >:

Collaboration diagram for MoFEM::OpGradGradImpl< 1, FIELD_DIM, SPACE_DIM, GAUSS, OpBase >:

Public Member Functions
	OpGradGradImpl (const std::string row_field_name, const std::string col_field_name, ScalarFun beta=scalar_fun_one, boost::shared_ptr< Range > ents_ptr=nullptr)

Public Member Functions inherited from MoFEM::OpBaseImpl< A, EleOp >
	OpBaseImpl (const std::string row_field_name, const std::string col_field_name, const OpType type, boost::shared_ptr< Range > ents_ptr=nullptr)

MoFEMErrorCode	doWork (int row_side, int col_side, EntityType row_type, EntityType col_type, EntData &row_data, EntData &col_data)
	Do calculations for the left hand side. More...

MoFEMErrorCode	doWork (int row_side, EntityType row_type, EntData &row_data)
	Do calculations for the right hand side. More...

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

Public Attributes inherited from MoFEM::OpBaseImpl< A, EleOp >
TimeFun	timeScalingFun
	assumes that time variable is set More...

FEFun	feScalingFun
	assumes that time variable is set More...

boost::shared_ptr< Range >	entsPtr
	Entities on which element is run. More...

Protected Member Functions
MoFEMErrorCode	iNtegrate (EntitiesFieldData::EntData &row_data, EntitiesFieldData::EntData &col_data)
	Integrate grad-grad operator. More...

Protected Member Functions inherited from MoFEM::OpBaseImpl< A, EleOp >
template<int DIM>
FTensor::Tensor1< FTensor::PackPtr< double *, DIM >, DIM >	getNf ()

template<int DIM>
FTensor::Tensor2< FTensor::PackPtr< double *, DIM >, DIM, DIM >	getLocMat (const int rr)

virtual MoFEMErrorCode	iNtegrate (EntData &row_data, EntData &col_data)
	Integrate grad-grad operator. More...

virtual MoFEMErrorCode	aSsemble (EntData &row_data, EntData &col_data, const bool trans)

virtual MoFEMErrorCode	iNtegrate (EntData &data)
	Class dedicated to integrate operator. More...

virtual MoFEMErrorCode	aSsemble (EntData &data)

Protected Attributes
ScalarFun	betaCoeff

Protected Attributes inherited from MoFEM::OpBaseImpl< A, EleOp >
int	nbRows
	number of dofs on rows More...

int	nbCols
	number if dof on column More...

int	nbIntegrationPts
	number of integration points More...

int	nbRowBaseFunctions
	number or row base functions More...

int	rowSide
	row side number More...

int	colSide
	column side number More...

EntityType	rowType
	row type More...

EntityType	colType
	column type More...

bool	assembleTranspose

bool	onlyTranspose

MatrixDouble	locMat
	local entity block matrix More...

MatrixDouble	locMatTranspose
	local entity block matrix More...

VectorDouble	locF
	local entity vector More...

Additional Inherited Members
Public Types inherited from MoFEM::OpBaseImpl< A, EleOp >
using	OpType = typename EleOp::OpType

using	EntData = EntitiesFieldData::EntData

Detailed Description

template<int FIELD_DIM, int SPACE_DIM, typename OpBase>
struct MoFEM::OpGradGradImpl< 1, FIELD_DIM, SPACE_DIM, GAUSS, OpBase >

Definition at line 42 of file BiLinearFormsIntegrators.hpp.

Constructor & Destructor Documentation

◆ OpGradGradImpl()

template<int FIELD_DIM, int SPACE_DIM, typename OpBase >

MoFEM::OpGradGradImpl< 1, FIELD_DIM, SPACE_DIM, GAUSS, OpBase >::OpGradGradImpl	(	const std::string	row_field_name,
		const std::string	col_field_name,
		ScalarFun	beta = `scalar_fun_one`,
		boost::shared_ptr< Range >	ents_ptr = `nullptr`
	)

inline

Definition at line 44 of file BiLinearFormsIntegrators.hpp.

      : OpBase(row_field_name, col_field_name, OpBase::OPROWCOL, ents_ptr),
        betaCoeff(beta) {
    if (row_field_name == col_field_name)
      this->sYmm = true;
  }

Member Function Documentation

◆ iNtegrate()

template<int FIELD_DIM, int SPACE_DIM, typename OpBase >

MoFEMErrorCode MoFEM::OpGradGradImpl< 1, FIELD_DIM, SPACE_DIM, GAUSS, OpBase >::iNtegrate	(	EntitiesFieldData::EntData &	row_data,
		EntitiesFieldData::EntData &	col_data
	)

protectedvirtual

Integrate grad-grad operator.

Parameters

row_data	row data (consist base functions on row entity)
col_data	column data (consist base functions on column entity)

Returns: error code

Reimplemented from MoFEM::OpBaseImpl< A, EleOp >.

Definition at line 607 of file BiLinearFormsIntegrators.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 coordinate at integration points
  auto t_coords = OpBase::getFTensor1CoordsAtGaussPts();
 
  FTensor::Index<'i', SPACE_DIM> i;
  FTensor::Index<'j', FIELD_DIM> j;
 
  auto get_t_vec = [&](const int rr) {
    std::array<double *, FIELD_DIM> ptrs;
    for (auto i = 0; i != FIELD_DIM; ++i)
      ptrs[i] = &OpBase::locMat(rr + i, i);
    return FTensor::Tensor1<FTensor::PackPtr<double *, FIELD_DIM>, FIELD_DIM>(
        ptrs);
  };
 
  // loop over integration points
  for (int gg = 0; gg != OpBase::nbIntegrationPts; gg++) {
    const double beta = vol * betaCoeff(t_coords(0), t_coords(1), t_coords(2));
    // take into account Jacobian
    const double alpha = t_w * beta;
    // loop over ros base functions
    int rr = 0;
    for (; rr != OpBase::nbRows / FIELD_DIM; rr++) {
      // get diag vec
      auto t_vec = get_t_vec(rr * FIELD_DIM);
      // get column base functions gradient at gauss point gg
      auto t_col_grad = col_data.getFTensor1DiffN<SPACE_DIM>(gg, 0);
      // loop over columns
      for (int cc = 0; cc != OpBase::nbCols / FIELD_DIM; cc++) {
        // calculate element of local matrix
        t_vec(j) += alpha * (t_row_grad(i) * t_col_grad(i));
        ++t_col_grad; // move to another gradient of base function
                      // on column
        ++t_vec;
      }
      ++t_row_grad; // move to another element of gradient of base
                    // function on row
    }
    for (; rr < OpBase::nbRowBaseFunctions; ++rr)
      ++t_row_grad;
 
    ++t_coords;
    ++t_w; // move to another integration weight
  }
  MoFEMFunctionReturn(0);
}