Dune::P1VTKFunction< GV, V > Class Template Reference

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

#include <dune/grid/io/file/vtk/function.hh>

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
	P1VTKFunction (const GV &gv, const V &v_, const std::string &s_, int ncomps=1, int mycomp=0)
	construct from a vector and a name More...
virtual	~P1VTKFunction ()
	destructor

Detailed Description

template<typename GV, typename V>
class Dune::P1VTKFunction< 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().

While the number of components of the function is always 1, the vector may represent a field with multiple components of which one may be selected.

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

P1VTKFunction()

template<typename GV , typename V >

Dune::P1VTKFunction< GV, V >::P1VTKFunction ( const GV &  gv, const V &  v_, const std::string &  s_, int  ncomps = 1, int  mycomp = 0  )

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.
mycomp	Number of the field component this function is responsible for.

References DUNE_THROW, and Dune::MultipleCodimMultipleGeomTypeMapper< GV, Layout >::size().

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

• dune/grid/io/file/vtk/function.hh