MoFEM::OpMassImpl< 1, FIELD_DIM, GAUSS, OpBase > Struct Template Reference

#include <src/finite_elements/BiLinearFormsIntegrators.hpp>

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

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

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	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)
virtual size_t	getNbOfBaseFunctions (EntitiesFieldData::EntData &data)
	Get number of base functions. More...

Additional Inherited Members
Public Types inherited from MoFEM::OpBaseImpl< A, EleOp >
using	OpType = typename EleOp::OpType
using	EntData = EntitiesFieldData::EntData
using	MatSetValuesHook = boost::function< MoFEMErrorCode(ForcesAndSourcesCore::UserDataOperator *op_ptr, const EntitiesFieldData::EntData &row_data, const EntitiesFieldData::EntData &col_data, MatrixDouble &m)>
Public Member Functions inherited from MoFEM::OpMassImpl< 1, 1, GAUSS, OpBase >
	OpMassImpl (const std::string row_field_name, const std::string col_field_name, ScalarFun beta=[](double, double, double) constexpr { return 1;}, 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 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...
Static Public Attributes inherited from MoFEM::OpBaseImpl< A, EleOp >
static MatSetValuesHook	matSetValuesHook
Protected Attributes inherited from MoFEM::OpMassImpl< 1, 1, GAUSS, OpBase >
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...

Detailed Description

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

Definition at line 83 of file BiLinearFormsIntegrators.hpp.

Member Function Documentation

iNtegrate()

template<int FIELD_DIM, typename OpBase >

MoFEMErrorCode MoFEM::OpMassImpl< 1, FIELD_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::OpMassImpl< 1, 1, GAUSS, OpBase >.

Definition at line 689 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_base = row_data.getFTensor0N();
  // get coordinate at integration points
  auto t_coords = OpBase::getFTensor1CoordsAtGaussPts();
 
  FTensor::Index<'i', FIELD_DIM> i;
  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 rows base functions
    int rr = 0;
    for (; rr != OpBase::nbRows / FIELD_DIM; rr++) {
      // get column base functions gradient at gauss point gg
      auto t_col_base = col_data.getFTensor0N(gg, 0);
      // get mat vec
      auto t_vec = get_t_vec(FIELD_DIM * rr);
      // loop over columns
      for (int cc = 0; cc != OpBase::nbCols / FIELD_DIM; cc++) {
        // calculate element of local matrix
        t_vec(i) += alpha * (t_row_base * t_col_base);
        ++t_col_base;
        ++t_vec;
      }
      ++t_row_base;
    }
    for (; rr < OpBase::nbRowBaseFunctions; ++rr)
      ++t_row_base;
    ++t_coords;
    ++t_w; // move to another integration weight
  }
  MoFEMFunctionReturn(0);
};

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The documentation for this struct was generated from the following file:

• src/finite_elements/BiLinearFormsIntegrators.hpp