#include <mesh_extras.hpp>

Inheritance diagram for mfem::common::AffineTransformation:

Collaboration diagram for mfem::common::AffineTransformation:

Public Member Functions
	AffineTransformation (int dim_, const DenseMatrix &A_, const Vector &b_)

void	Eval (Vector &V, ElementTransformation &T, const IntegrationPoint &ip) override
	Evaluate the vector coefficient in the element described by T at the point ip, storing the result in V.

virtual void	Eval (DenseMatrix &M, ElementTransformation &T, const IntegrationRule &ir)
	Evaluate the vector coefficient in the element described by T at all points of ir, storing the result in M.

Public Member Functions inherited from mfem::VectorCoefficient
	VectorCoefficient (int vd)
	Initialize the VectorCoefficient with vector dimension vd.

virtual void	SetTime (real_t t)
	Set the time for time dependent coefficients.

real_t	GetTime ()
	Get the time for time dependent coefficients.

int	GetVDim ()
	Returns dimension of the vector.

virtual void	Project (QuadratureFunction &qf)
	Fill the QuadratureFunction qf by evaluating the coefficient at the quadrature points.

virtual	~VectorCoefficient ()

Additional Inherited Members
Protected Attributes inherited from mfem::VectorCoefficient
int	vdim

real_t	time

Detailed Description

Transform a mesh according to an arbitrary affine transformation y = A x + b Where A is a spaceDim x spaceDim matrix and b is a vector of size spaceDim. If A is of size zero the transformation will be y = b. If b is of size zero the transformation will be y = A x.

Note that no error checking related to the determinant of A is performed. If A has a non-positive determinant it is likely to produce an invalid transformed mesh.

Definition at line 49 of file mesh_extras.hpp.

Constructor & Destructor Documentation

◆ AffineTransformation()

mfem::common::AffineTransformation::AffineTransformation	(	int	dim_,
		const DenseMatrix &	A_,
		const Vector &	b_ )

inline

Definition at line 57 of file mesh_extras.hpp.

Member Function Documentation

◆ Eval() [1/2]

void mfem::VectorCoefficient::Eval	(	DenseMatrix &	M,
		ElementTransformation &	T,
		const IntegrationRule &	ir )

virtual

Evaluate the vector coefficient in the element described by T at all points of ir, storing the result in M.

The dimensions of M are GetVDim() by ir.GetNPoints() and they must be set by the implementation of this method.

The general implementation provided by the base class (using the Eval method for one IntegrationPoint at a time) can be overloaded for more efficient implementation.

Note: The IntegrationPoint associated with T is not used, and this method will generally modify this IntegrationPoint associated with T.

Reimplemented from mfem::VectorCoefficient.

Definition at line 613 of file coefficient.cpp.

◆ Eval() [2/2]

void mfem::common::AffineTransformation::Eval	(	Vector &	V,
		ElementTransformation &	T,
		const IntegrationPoint &	ip )

overridevirtual

Evaluate the vector coefficient in the element described by T at the point ip, storing the result in V.

Note: When this method is called, the caller must make sure that the IntegrationPoint associated with T is the same as ip. This can be achieved by calling T.SetIntPoint(&ip).

Implements mfem::VectorCoefficient.

Definition at line 256 of file mesh_extras.cpp.

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

miniapps/common/mesh_extras.hpp
miniapps/common/mesh_extras.cpp