Bempp::P1VectorVTKFunction< GV, V > Class Template Reference

Take a vector and interpret it as point data for the VTKWriter. More...

#include </home/wojtek/Projects/BEM/bempp-sven/bempp/lib/grid/p1_vector_vtk_function.hpp>

Inheritance diagram for Bempp::P1VectorVTKFunction< GV, V >:

Public Types
typedef Base::Entity	Entity
typedef Base::ctype	ctype

Public Member Functions
virtual int	ncomps () const
	return number of components
virtual double	evaluate (int comp, const Entity &e, const Dune::FieldVector< ctype, dim > &xi) const
	evaluate
virtual std::string	name () const
	get name
	P1VectorVTKFunction (const GV &gv, const V &v_, const std::string &s_, int ncomps=1)
	Construct from a vector and a name. More...

Private Types
typedef Dune::VTKFunction< GV >	Base
	Base class.
typedef Dune::MultipleCodimMultipleGeomTypeMapper < GV, Dune::MCMGVertexLayout >	Mapper
	Mapper for vertices.

Private Attributes
const V &	v
	store a reference to the vector
std::string	s
	name of this function
int	ncomps_
	number of components of the field stored in the vector
Mapper	mapper
	mapper used to map elements to indices

Detailed Description

template<typename GV, typename V>
class Bempp::P1VectorVTKFunction< GV, V >

Take a vector and interpret it as point data for the VTKWriter.

This class turns a generic vector containing point data into a VTKFunction. The vector must allow read access to the data via operator[]() and store the data in the order given by MultipleCodimMultipleGeomTypeMapper with a layout class that allows only vertices. Also, it must support the method size().

As opposed to a Dune::P1VTKFunction, this class represents all components of a vector field at once.

Note

While this function may be evaluated anywhere on a given grid element, it does not interpolate between the corners of the element – instead, it returns the value at the nearest corner (as determined in local coordinates).

Template Parameters

GV	Type of GridView the vector applies to.
V	Type of vector.

Constructor & Destructor Documentation

template<typename GV , typename V >

Bempp::P1VectorVTKFunction< GV, V >::P1VectorVTKFunction ( const GV &  gv, const V &  v_, const std::string &  s_, int  ncomps = 1  )

inline

Construct from a vector and a name.

Parameters

gv	GridView to operate on (used to instantiate a MultipleCodimMultipleGeomTypeMapper, otherwise no reference or copy is stored). Note that this must be the GridView the vector applies to as well as the GridView later used by the VTKWriter – i.e. we do not implicitly restrict or prolongate the data.
v_	Reference to the vector holding the data. The reference is stored internally and must be valid for as long as this functions evaluate method is used.
s_	Name of this function in the VTK file.
ncomps	Number of components of the field represented by the vector.

References Bempp::P1VectorVTKFunction< GV, V >::mapper, Bempp::P1VectorVTKFunction< GV, V >::ncomps_, and Bempp::P1VectorVTKFunction< GV, V >::v.

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

• /home/wojtek/Projects/BEM/bempp-sven/bempp/lib/grid/p1_vector_vtk_function.hpp