Abstract base class for QuadratureSpace and FaceQuadratureSpace. More...

#include <qspace.hpp>

Inheritance diagram for mfem::QuadratureSpaceBase:

Collaboration diagram for mfem::QuadratureSpaceBase:

Public Member Functions
int	GetSize () const
	Return the total number of quadrature points. More...

int	GetOrder () const
	Return the order of the quadrature rule(s) used by all elements. More...

int	GetNE () const
	Return the number of entities. More...

Mesh *	GetMesh () const
	Returns the mesh. More...

virtual ElementTransformation *	GetTransformation (int idx)=0
	Get the (element or face) transformation of entity idx. More...

virtual Geometry::Type	GetGeometry (int idx) const =0
	Return the geometry type of entity (element or face) idx. More...

const IntegrationRule &	GetIntRule (int idx) const
	Return the IntegrationRule associated with entity idx. More...

virtual int	GetPermutedIndex (int idx, int iq) const =0
	Returns the permuted index of the iq quadrature point in entity idx. More...

virtual int	GetEntityIndex (const ElementTransformation &T) const =0
	Returns the index in the quadrature space of the entity associated with the transformation T. More...

virtual void	Save (std::ostream &out) const =0
	Write the QuadratureSpace to the stream out. More...

virtual	~QuadratureSpaceBase ()

Protected Member Functions
	QuadratureSpaceBase (Mesh &mesh_, int order_=0)
	Protected constructor. Used by derived classes. More...

	QuadratureSpaceBase (Mesh &mesh_, Geometry::Type geom, const IntegrationRule &ir)
	Protected constructor. Used by derived classes. More...

void	ConstructIntRules (int dim)
	Fill the int_rule array for each geometry type using order. More...

Protected Attributes
Mesh &	mesh
	The underlying mesh. More...

int	order
	The order of integration rule. More...

int	size
	Total number of quadrature points. More...

Array< int >	offsets
	Entity quadrature point offset array, of size num_entities + 1. More...

const IntegrationRule *	int_rule [Geometry::NumGeom]
	The quadrature rules used for each geometry type. More...

Friends
class	QuadratureFunction

Detailed Description

Abstract base class for QuadratureSpace and FaceQuadratureSpace.

This class represents the storage layout for QuadratureFunctions, that may be defined either on mesh elements or mesh faces.

Definition at line 25 of file qspace.hpp.

Constructor & Destructor Documentation

◆ QuadratureSpaceBase() [1/2]

mfem::QuadratureSpaceBase::QuadratureSpaceBase	(	Mesh &	mesh_,
		int	order_ = `0`
	)

inlineprotected

Protected constructor. Used by derived classes.

Definition at line 43 of file qspace.hpp.

◆ QuadratureSpaceBase() [2/2]

mfem::QuadratureSpaceBase::QuadratureSpaceBase	(	Mesh &	mesh_,
		Geometry::Type	geom,
		const IntegrationRule &	ir
	)

protected

Protected constructor. Used by derived classes.

Definition at line 17 of file qspace.cpp.

◆ ~QuadratureSpaceBase()

virtual mfem::QuadratureSpaceBase::~QuadratureSpaceBase ( )

inlinevirtual

Definition at line 96 of file qspace.hpp.

Member Function Documentation

◆ ConstructIntRules()

void mfem::QuadratureSpaceBase::ConstructIntRules ( int dim )

protected

Fill the int_rule array for each geometry type using order.

Definition at line 28 of file qspace.cpp.

◆ GetEntityIndex()

virtual int mfem::QuadratureSpaceBase::GetEntityIndex ( const ElementTransformation & T ) const

pure virtual

Returns the index in the quadrature space of the entity associated with the transformation T.

For a QuadratureSpace defined on elements, this just returns the element index. For FaceQuadratureSpace, the returned index depends on the chosen FaceType.

Implemented in mfem::FaceQuadratureSpace, and mfem::QuadratureSpace.

◆ GetGeometry()

virtual Geometry::Type mfem::QuadratureSpaceBase::GetGeometry ( int idx ) const

pure virtual

Return the geometry type of entity (element or face) idx.

Implemented in mfem::FaceQuadratureSpace, and mfem::QuadratureSpace.

◆ GetIntRule()

const IntegrationRule& mfem::QuadratureSpaceBase::GetIntRule ( int idx ) const

inline

Return the IntegrationRule associated with entity idx.

Definition at line 73 of file qspace.hpp.

◆ GetMesh()

Mesh* mfem::QuadratureSpaceBase::GetMesh ( ) const

inline

Returns the mesh.

Definition at line 64 of file qspace.hpp.

◆ GetNE()

int mfem::QuadratureSpaceBase::GetNE ( ) const

inline

Return the number of entities.

Definition at line 61 of file qspace.hpp.

◆ GetOrder()

int mfem::QuadratureSpaceBase::GetOrder ( ) const

inline

Return the order of the quadrature rule(s) used by all elements.

Definition at line 58 of file qspace.hpp.

◆ GetPermutedIndex()

virtual int mfem::QuadratureSpaceBase::GetPermutedIndex	(	int	idx,
		int	iq
	)		const

pure virtual

Returns the permuted index of the iq quadrature point in entity idx.

For tensor-product faces, returns the lexicographic index of the quadrature point, oriented relative to "element 1". For QuadratureSpaces defined on elements (not faces), the permutation is trivial, and this returns iq.

Implemented in mfem::FaceQuadratureSpace, and mfem::QuadratureSpace.

◆ GetSize()

int mfem::QuadratureSpaceBase::GetSize ( ) const

inline

Return the total number of quadrature points.

Definition at line 55 of file qspace.hpp.

◆ GetTransformation()

virtual ElementTransformation* mfem::QuadratureSpaceBase::GetTransformation ( int idx )

pure virtual

Get the (element or face) transformation of entity idx.

Implemented in mfem::FaceQuadratureSpace, and mfem::QuadratureSpace.

◆ Save()

virtual void mfem::QuadratureSpaceBase::Save ( std::ostream & out ) const

pure virtual

Write the QuadratureSpace to the stream out.

Implemented in mfem::FaceQuadratureSpace, and mfem::QuadratureSpace.

Friends And Related Function Documentation

◆ QuadratureFunction

friend class QuadratureFunction

friend

Definition at line 28 of file qspace.hpp.

Member Data Documentation

◆ int_rule

const IntegrationRule* mfem::QuadratureSpaceBase::int_rule[Geometry::NumGeom]

protected

The quadrature rules used for each geometry type.

Definition at line 40 of file qspace.hpp.

◆ mesh

Mesh& mfem::QuadratureSpaceBase::mesh

protected

The underlying mesh.

Definition at line 30 of file qspace.hpp.

◆ offsets

Array<int> mfem::QuadratureSpaceBase::offsets

protected

Entity quadrature point offset array, of size num_entities + 1.

The quadrature point values for entity i are stored in the indices between offsets[i] and offsets[i+1].

Definition at line 38 of file qspace.hpp.

◆ order

int mfem::QuadratureSpaceBase::order

protected

The order of integration rule.

Definition at line 31 of file qspace.hpp.

◆ size

int mfem::QuadratureSpaceBase::size

protected

Total number of quadrature points.

Definition at line 32 of file qspace.hpp.

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

fem/qspace.hpp
fem/qspace.cpp

Public Member Functions

Protected Member Functions

Protected Attributes

Friends

Detailed Description

Constructor & Destructor Documentation

◆ QuadratureSpaceBase() [1/2]

◆ QuadratureSpaceBase() [2/2]

◆ ~QuadratureSpaceBase()

Member Function Documentation

◆ ConstructIntRules()

◆ GetEntityIndex()

◆ GetGeometry()

◆ GetIntRule()

◆ GetMesh()

◆ GetNE()

◆ GetOrder()

◆ GetPermutedIndex()

◆ GetSize()

◆ GetTransformation()

◆ Save()

Friends And Related Function Documentation

◆ QuadratureFunction

Member Data Documentation

◆ int_rule

◆ mesh

◆ offsets

◆ order

◆ size