mfem::FaceQuadratureInterpolator Class Reference

A class that performs interpolation from a face E-vector to quadrature point values and/or derivatives (Q-vectors) on the faces. More...

#include <quadinterpolator_face.hpp>

Collaboration diagram for mfem::FaceQuadratureInterpolator:

Public Types
enum	FaceEvalFlags { VALUES = 1 << 0, DERIVATIVES = 1 << 1, DETERMINANTS = 1 << 2, NORMALS = 1 << 3 }

Public Member Functions
	FaceQuadratureInterpolator (const FiniteElementSpace &fes, const IntegrationRule &ir, FaceType type)
void	DisableTensorProducts (bool disable=true) const
	Disable the use of tensor product evaluations, for tensor-product elements, e.g. quads and hexes. More...
void	Mult (const Vector &e_vec, unsigned eval_flags, Vector &q_val, Vector &q_der, Vector &q_det, Vector &q_nor) const
	Interpolate the E-vector e_vec to quadrature points. More...

Static Public Member Functions
template<const int T_VDIM = 0, const int T_ND = 0, const int T_NQ = 0>
static void	Eval2D (const int NF, const int vdim, const DofToQuad &maps, const Array< bool > &signs, const Vector &e_vec, Vector &q_val, Vector &q_der, Vector &q_det, Vector &q_nor, const int eval_flags)
	Template compute kernel for 2D. More...
template<const int T_VDIM = 0, const int T_ND = 0, const int T_NQ = 0>
static void	Eval3D (const int NF, const int vdim, const DofToQuad &maps, const Array< bool > &signs, const Vector &e_vec, Vector &q_val, Vector &q_der, Vector &q_det, Vector &q_nor, const int eval_flags)
	Template compute kernel for 3D. More...

Protected Attributes
const FiniteElementSpace *	fespace
	Not owned. More...
const IntegrationRule *	IntRule
	Not owned. More...
bool	use_tensor_products

Static Protected Attributes
static const int	MAX_NQ1D = 10
static const int	MAX_ND1D = 10
static const int	MAX_VDIM1D = 1
static const int	MAX_NQ2D = 100
static const int	MAX_ND2D = 100
static const int	MAX_VDIM2D = 2
static const int	MAX_NQ3D = 1000
static const int	MAX_ND3D = 1000
static const int	MAX_VDIM3D = 3

Friends
class	FiniteElementSpace

Detailed Description

A class that performs interpolation from a face E-vector to quadrature point values and/or derivatives (Q-vectors) on the faces.

A face E-vector represents the face-wise discontinuous version of the trace FE space and can be obtained, for example, from a GridFunction using the Operator returned by FiniteElementSpace::GetFaceRestriction().

Definition at line 25 of file quadinterpolator_face.hpp.

Member Enumeration Documentation

enum mfem::FaceQuadratureInterpolator::FaceEvalFlags

Enumerator
VALUES	Evaluate the values at quadrature points.
DERIVATIVES	Evaluate the derivatives at quadrature points.
DETERMINANTS	Assuming the derivative at quadrature points form a matrix, this flag can be used to compute and store their determinants. This flag can only be used in Mult().
NORMALS

Definition at line 52 of file quadinterpolator_face.hpp.

Constructor & Destructor Documentation

mfem::FaceQuadratureInterpolator::FaceQuadratureInterpolator	(	const FiniteElementSpace &	fes,
		const IntegrationRule &	ir,
		FaceType	type
	)

Definition at line 64 of file quadinterpolator_face.cpp.

Member Function Documentation

void mfem::FaceQuadratureInterpolator::DisableTensorProducts ( bool  disable = true ) const

inline

Disable the use of tensor product evaluations, for tensor-product elements, e.g. quads and hexes.

Currently, tensor product evaluations are not implemented and this method has no effect.

Definition at line 70 of file quadinterpolator_face.hpp.

template<const int T_VDIM, const int T_ND1D, const int T_NQ1D>

void mfem::FaceQuadratureInterpolator::Eval2D ( const int  NF, const int  vdim, const DofToQuad &  maps, const Array< bool > &  signs, const Vector &  e_vec, Vector &  q_val, Vector &  q_der, Vector &  q_det, Vector &  q_nor, const int  eval_flags  )

static

Template compute kernel for 2D.

Definition at line 89 of file quadinterpolator_face.cpp.

template<const int T_VDIM, const int T_ND1D, const int T_NQ1D>

void mfem::FaceQuadratureInterpolator::Eval3D ( const int  NF, const int  vdim, const DofToQuad &  maps, const Array< bool > &  signs, const Vector &  e_vec, Vector &  q_val, Vector &  q_der, Vector &  q_det, Vector &  q_nor, const int  eval_flags  )

static

Template compute kernel for 3D.

Definition at line 185 of file quadinterpolator_face.cpp.

void mfem::FaceQuadratureInterpolator::Mult	(	const Vector &	e_vec,
		unsigned	eval_flags,
		Vector &	q_val,
		Vector &	q_der,
		Vector &	q_det,
		Vector &	q_nor
	)		const

Interpolate the E-vector e_vec to quadrature points.

The eval_flags are a bitwise mask of constants from the FaceEvalFlags enumeration. When the VALUES flag is set, the values at quadrature points are computed and stored in the Vector q_val. Similarly, when the flag DERIVATIVES is set, the derivatives are computed and stored in q_der. When the DETERMINANTS flags is set, it is assumed that the derivatives form a matrix at each quadrature point (i.e. the associated FiniteElementSpace is a vector space) and their determinants are computed and stored in q_det.

Definition at line 355 of file quadinterpolator_face.cpp.

Friends And Related Function Documentation

friend class FiniteElementSpace

friend

Definition at line 32 of file quadinterpolator_face.hpp.

Member Data Documentation

const FiniteElementSpace* mfem::FaceQuadratureInterpolator::fespace

protected

Not owned.

Definition at line 34 of file quadinterpolator_face.hpp.

const IntegrationRule* mfem::FaceQuadratureInterpolator::IntRule

protected

Not owned.

Definition at line 35 of file quadinterpolator_face.hpp.

const int mfem::FaceQuadratureInterpolator::MAX_ND1D = 10

staticprotected

Definition at line 40 of file quadinterpolator_face.hpp.

const int mfem::FaceQuadratureInterpolator::MAX_ND2D = 100

staticprotected

Definition at line 44 of file quadinterpolator_face.hpp.

const int mfem::FaceQuadratureInterpolator::MAX_ND3D = 1000

staticprotected

Definition at line 48 of file quadinterpolator_face.hpp.

const int mfem::FaceQuadratureInterpolator::MAX_NQ1D = 10

staticprotected

Definition at line 39 of file quadinterpolator_face.hpp.

const int mfem::FaceQuadratureInterpolator::MAX_NQ2D = 100

staticprotected

Definition at line 43 of file quadinterpolator_face.hpp.

const int mfem::FaceQuadratureInterpolator::MAX_NQ3D = 1000

staticprotected

Definition at line 47 of file quadinterpolator_face.hpp.

const int mfem::FaceQuadratureInterpolator::MAX_VDIM1D = 1

staticprotected

Definition at line 41 of file quadinterpolator_face.hpp.

const int mfem::FaceQuadratureInterpolator::MAX_VDIM2D = 2

staticprotected

Definition at line 45 of file quadinterpolator_face.hpp.

const int mfem::FaceQuadratureInterpolator::MAX_VDIM3D = 3

staticprotected

Definition at line 49 of file quadinterpolator_face.hpp.

bool mfem::FaceQuadratureInterpolator::use_tensor_products

mutableprotected

Definition at line 37 of file quadinterpolator_face.hpp.

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

• fem/quadinterpolator_face.hpp
• fem/quadinterpolator_face.cpp