mfem::ND_DofTransformation Class Reference

#include <doftrans.hpp>

Inheritance diagram for mfem::ND_DofTransformation:

Collaboration diagram for mfem::ND_DofTransformation:

Static Public Member Functions
static const DenseMatrix &	GetFaceTransform (int ori)
static const DenseMatrix &	GetFaceInverseTransform (int ori)

Protected Member Functions
	ND_DofTransformation (int size, int order)
Protected Member Functions inherited from mfem::DofTransformation
	DofTransformation (int size)

Protected Attributes
int	order
int	nedofs
int	nfdofs
Protected Attributes inherited from mfem::DofTransformation
int	size_
Array< int >	Fo

Static Protected Attributes
static const double	T_data [24]
static const double	TInv_data [24]
static const DenseTensor	T
static const DenseTensor	TInv

Additional Inherited Members
Public Member Functions inherited from mfem::DofTransformation
int	Size () const
int	Height () const
int	NumRows () const
int	Width () const
int	NumCols () const
void	SetFaceOrientations (const Array< int > &face_orientation)
	Configure the transformation using face orientations for the current element. More...
const Array< int > &	GetFaceOrientations () const
virtual void	TransformPrimal (double *v) const =0
virtual void	TransformPrimal (Vector &v) const
virtual void	TransformPrimalCols (DenseMatrix &V) const
	Transform groups of DoFs stored as dense matrices. More...
virtual void	InvTransformPrimal (double *v) const =0
virtual void	InvTransformPrimal (Vector &v) const
virtual void	TransformDual (double *v) const =0
virtual void	TransformDual (Vector &v) const
virtual void	InvTransformDual (double *v) const =0
virtual void	InvTransformDual (Vector &v) const
virtual void	TransformDual (DenseMatrix &V) const
virtual void	TransformDualRows (DenseMatrix &V) const
	Transform groups of dual DoFs stored as dense matrices. More...
virtual void	TransformDualCols (DenseMatrix &V) const
virtual	~DofTransformation ()

Detailed Description

Abstract base class for high-order Nedelec spaces on elements with triangular faces.

The Nedelec DoFs on the interior of triangular faces come in pairs which share an interpolation point but have different vector directions. These directions depend on the orientation of the face and can therefore differ in neighboring elements. The mapping required to transform these DoFs can be implemented as series of 2x2 linear transformations. The raw data for these linear transformations is stored in the T_data and TInv_data arrays and can be accessed as DenseMatrices using the GetFaceTransform() and GetFaceInverseTransform() methods.

Definition at line 210 of file doftrans.hpp.

Constructor & Destructor Documentation

ND_DofTransformation()

mfem::ND_DofTransformation::ND_DofTransformation ( int  size, int  order  )

protected

Definition at line 258 of file doftrans.cpp.

Member Function Documentation

GetFaceInverseTransform()

static const DenseMatrix& mfem::ND_DofTransformation::GetFaceInverseTransform ( int  ori )

inlinestatic

Definition at line 227 of file doftrans.hpp.

GetFaceTransform()

static const DenseMatrix& mfem::ND_DofTransformation::GetFaceTransform ( int  ori )

inlinestatic

Definition at line 224 of file doftrans.hpp.

Member Data Documentation

nedofs

int mfem::ND_DofTransformation::nedofs

protected

Definition at line 217 of file doftrans.hpp.

nfdofs

int mfem::ND_DofTransformation::nfdofs

protected

Definition at line 218 of file doftrans.hpp.

order

int mfem::ND_DofTransformation::order

protected

Definition at line 216 of file doftrans.hpp.

T

const DenseTensor mfem::ND_DofTransformation::T

staticprotected

Definition at line 215 of file doftrans.hpp.

T_data

const double mfem::ND_DofTransformation::T_data

staticprotected

Initial value:

=
{
   1.0,  0.0,  0.0,  1.0,
   -1.0, -1.0,  0.0,  1.0,
   0.0,  1.0, -1.0, -1.0,
   1.0,  0.0, -1.0, -1.0,
   -1.0, -1.0,  1.0,  0.0,
   0.0,  1.0,  1.0,  0.0
}

Definition at line 213 of file doftrans.hpp.

TInv

const DenseTensor mfem::ND_DofTransformation::TInv

staticprotected

Definition at line 215 of file doftrans.hpp.

TInv_data

const double mfem::ND_DofTransformation::TInv_data

staticprotected

Initial value:

=
{
   1.0,  0.0,  0.0,  1.0,
   -1.0, -1.0,  0.0,  1.0,
   -1.0, -1.0,  1.0,  0.0,
   1.0,  0.0, -1.0, -1.0,
   0.0,  1.0, -1.0, -1.0,
   0.0,  1.0,  1.0,  0.0
}

Definition at line 214 of file doftrans.hpp.

---

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

• fem/doftrans.hpp
• fem/doftrans.cpp