MFEMParsedCoefficient Class Reference

Scalar coefficient that, given a set of scalar (possibly, but not necessarily, gridfunction) coefficients u, v, w, ..., and a scalar, parsed function f, returns f(u, v, w, ..., x, y, z, t) More...

#include <MFEMParsedCoefficient.h>

Inheritance diagram for MFEMParsedCoefficient:

Public Member Functions
	MFEMParsedCoefficient (const unsigned &arity, const std::vector< std::reference_wrapper< mfem::Coefficient >> &coefs, const FunctionParserUtils< false >::SymFunctionPtr &sym_function)
mfem::real_t	Eval (mfem::ElementTransformation &T, const mfem::IntegrationPoint &ip) override

Private Attributes
const std::vector< std::reference_wrapper< mfem::Coefficient > > &	_coefficients
const FunctionParserUtils< false >::SymFunctionPtr &	_sym_function
mfem::Array< mfem::real_t >	_vals
mfem::Vector	_transip

Detailed Description

Scalar coefficient that, given a set of scalar (possibly, but not necessarily, gridfunction) coefficients u, v, w, ..., and a scalar, parsed function f, returns f(u, v, w, ..., x, y, z, t)

Definition at line 20 of file MFEMParsedCoefficient.h.

Constructor & Destructor Documentation

MFEMParsedCoefficient()

MFEMParsedCoefficient::MFEMParsedCoefficient	(	const unsigned &	arity,
		const std::vector< std::reference_wrapper< mfem::Coefficient >> &	coefs,
		const FunctionParserUtils< false >::SymFunctionPtr &	sym_function
	)

Definition at line 14 of file MFEMParsedCoefficient.C.

  : _coefficients(coefficients), _sym_function(sym_function), _vals(arity), _transip(3)
{
}

Member Function Documentation

Eval()

mfem::real_t MFEMParsedCoefficient::Eval ( mfem::ElementTransformation &  T, const mfem::IntegrationPoint &  ip  )

override

Definition at line 23 of file MFEMParsedCoefficient.C.

{
  for (unsigned i = 0; i < _coefficients.size(); i++)
    _vals[i] = _coefficients[i].get().Eval(T, ip);

  T.Transform(ip, _transip);

  for (int i = 0; i < 3; i++)
    _vals[_coefficients.size() + i] = i < _transip.Size() ? _transip(i) : 0.;

  _vals[_coefficients.size() + 3] = GetTime();

  return _sym_function->Eval(_vals.GetData());
}

Member Data Documentation

_coefficients

const std::vector<std::reference_wrapper<mfem::Coefficient> >& MFEMParsedCoefficient::_coefficients

private

Definition at line 23 of file MFEMParsedCoefficient.h.

Referenced by Eval().

_sym_function

const FunctionParserUtils<false>::SymFunctionPtr& MFEMParsedCoefficient::_sym_function

private

Definition at line 24 of file MFEMParsedCoefficient.h.

Referenced by Eval().

_transip

mfem::Vector MFEMParsedCoefficient::_transip

private

Definition at line 26 of file MFEMParsedCoefficient.h.

Referenced by Eval().

_vals

mfem::Array<mfem::real_t> MFEMParsedCoefficient::_vals

private

Definition at line 25 of file MFEMParsedCoefficient.h.

Referenced by Eval().

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The documentation for this class was generated from the following files:

• include/mfem/functions/MFEMParsedCoefficient.h
• src/mfem/functions/MFEMParsedCoefficient.C