virtual_fem implementation as a vector of generic functions. More...

#include <getfem_fem.h>

Public Member Functions
const std::vector< FUNC > &	base () const
	Gives the array of basic functions (components).

void	base_value (const base_node &x, base_tensor &t) const
	Evaluates at point x, all base functions and returns the result in t(nb_base,target_dim)

void	grad_base_value (const base_node &x, base_tensor &t) const
	Evaluates at point x, the gradient of all base functions w.r.t. More...

void	hess_base_value (const base_node &x, base_tensor &t) const
	Evaluates at point x, the hessian of all base functions w.r.t. More...

Public Member Functions inherited from getfem::virtual_fem
virtual size_type	nb_dof (size_type) const
	Number of degrees of freedom. More...

virtual size_type	nb_base (size_type cv) const
	Number of basis functions.

size_type	nb_base_components (size_type cv) const
	Number of components (nb_dof() * dimension of the target space).

const std::vector< pdof_description > &	dof_types () const
	Get the array of pointer on dof description.

dim_type	dim () const
	dimension of the reference element.

dim_type	target_dim () const
	dimension of the target space.

vec_type	vectorial_type () const
	Type of vectorial element.

virtual bgeot::pconvex_ref	ref_convex (size_type) const
	Return the convex of the reference element.

bgeot::pconvex_structure	basic_structure (size_type cv) const
	Gives the convex of the reference element.

virtual const bgeot::convex< base_node > &	node_convex (size_type) const
	Gives the convex representing the nodes on the reference element.

bgeot::pconvex_structure	structure (size_type cv) const
	Gives the convex structure of the reference element nodes.

const base_node &	node_of_dof (size_type cv, size_type i) const
	Gives the node corresponding to the dof i. More...

bool	is_lagrange () const
	true if the base functions are such that $\varphi_i(\textrm{node\_of\_dof(j)}) = \delta_{ij}$

bool	is_polynomial () const
	true if the base functions are polynomials

template<typename CVEC , typename VVEC >
void	interpolation (const fem_interpolation_context &c, const CVEC &coeff, VVEC &val, dim_type Qdim) const
	Interpolate at an arbitrary point x given on the reference element. More...

template<typename MAT >
void	interpolation (const fem_interpolation_context &c, MAT &M, dim_type Qdim) const
	Build the interpolation matrix for the interpolation at a fixed point x, given on the reference element. More...

template<typename CVEC , typename VMAT >
void	interpolation_grad (const fem_interpolation_context &c, const CVEC &coeff, VMAT &val, dim_type Qdim=1) const
	Interpolation of the gradient. More...

template<typename CVEC , typename VMAT >
void	interpolation_hess (const fem_interpolation_context &c, const CVEC &coeff, VMAT &val, dim_type Qdim) const
	Interpolation of the hessian. More...

template<typename CVEC >
void	interpolation_diverg (const fem_interpolation_context &c, const CVEC &coeff, typename gmm::linalg_traits< CVEC >::value_type &val) const
	Interpolation of the divergence. More...

virtual void	real_base_value (const fem_interpolation_context &c, base_tensor &t, bool withM=true) const
	Give the value of all components of the base functions at the current point of the fem_interpolation_context. More...

virtual void	real_grad_base_value (const fem_interpolation_context &c, base_tensor &t, bool withM=true) const
	Give the gradient of all components of the base functions at the current point of the fem_interpolation_context. More...

virtual void	real_hess_base_value (const fem_interpolation_context &c, base_tensor &t, bool withM=true) const
	Give the hessian of all components of the base functions at the current point of the fem_interpolation_context. More...

void	add_node (const pdof_description &d, const base_node &pt, const dal::bit_vector &faces)
	internal function adding a node to an element for the creation of a finite element method. More...

Detailed Description

template<class FUNC>
class getfem::fem< FUNC >

virtual_fem implementation as a vector of generic functions.

The class FUNC should provide "derivative" and "eval" member functions (this is the case for bgeot::polynomial<T>).

Definition at line 505 of file getfem_fem.h.

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

src/getfem/getfem_fem.h

Public Member Functions

Detailed Description

template<class FUNC> class getfem::fem< FUNC >

template<class FUNC>
class getfem::fem< FUNC >