Dune::TensorGridFactory< Grid > Class Template Reference

A factory class for conveniently creating tensorproduct grids. More...

#include <dune/grid/utility/tensorgridfactory.hh>

Public Member Functions
std::vector< ctype > &	operator[] (std::size_t d)
	allow to manually tune the factory by overloading operator[] to export the coordinate vectors in the coordinate directories.
const std::vector< ctype > &	operator[] (std::size_t d) const
	allow to manually tune the factory by overloading operator[] to export the coordinate vectors in the coordinate directories.
void	setStart (int d, ctype value)
	set a starting value in a given direction d More...
void	fillIntervals (int d, int n, ctype h)
	pushs n intervals of length h in direction d More...
void	fillRange (int d, int n, ctype end)
	fills the range to end with n intervals in direction d More...
void	fillUntil (int d, ctype h, ctype end)
	adds intervals in direction d until a given coordinate is reached More...
void	geometricFillIntervals (int d, int n, ctype ratio, ctype h0=static_cast< ctype >(0))
	adds n intervals in direction d with a given length ratio and a given starting interval length. More...
void	geometricFillUntil (int d, ctype ratio, ctype end, ctype h0=static_cast< ctype >(0))
	adds intervals in direction d according with a given length ratio until a given coordinate is reached More...
void	geometricFillRange (int d, int n, ctype end, ctype h=static_cast< ctype >(0), bool first=true)
	fills a coordinate range in direction d with n intervals according to a geometric series More...
void	print ()
	print the coordinate information given to the factory so far

Detailed Description

template<typename Grid>
class Dune::TensorGridFactory< Grid >

A factory class for conveniently creating tensorproduct grids.

Template Parameters

Grid	the grid type

Member Function Documentation

fillIntervals()

template<typename Grid >

void Dune::TensorGridFactory< Grid >::fillIntervals ( int  d, int  n, ctype  h  )

inline

pushs n intervals of length h in direction d

Parameters

d	the coordinate direction
n	the number of intervals to add
h	the interval length

Given a vector with last element $x_0$, this will add elements $x_1,\dots ,x_n$ such that $x_i=x_0+i*h$.

References Dune::back(), and Dune::push_back().

fillRange()

template<typename Grid >

void Dune::TensorGridFactory< Grid >::fillRange ( int  d, int  n, ctype  end  )

inline

fills the range to end with n intervals in direction d

Parameters

d	the coordinate direction
n	the number of intervals to add
end	the coordinate on the upper border of the range

Given a vector with last element $x_0$, this will add elements $x_1,\dots ,x_n$ such that $x_i=x_0+i*\frac{end-x_0}{n}$.

References Dune::back(), and Dune::push_back().

fillUntil()

template<typename Grid >

void Dune::TensorGridFactory< Grid >::fillUntil ( int  d, ctype  h, ctype  end  )

inline

adds intervals in direction d until a given coordinate is reached

Parameters

d	the coordinate direction
h	the interval length
end	the coordinate on the upper border of the range

Given a vector with last element $x_0$, this will add elements $x_1,\dots ,x_n$ such that $x_n < end < x_n + h$ and $x_{i+1}-x_i = h$.

References Dune::back().

geometricFillIntervals()

template<typename Grid >

void Dune::TensorGridFactory< Grid >::geometricFillIntervals ( int  d, int  n, ctype  ratio, ctype  h0 = static_cast<ctype> (0)  )

inline

adds n intervals in direction d with a given length ratio and a given starting interval length.

Parameters

d	the coordinate direction
n	the number of intervals to add
ratio	the ratio of $h_{i+1}$ to $h_i$
h0	the starting interval length (optional)

Given a vector with last element $x_0$, this will add elements $x_1,\dots ,x_n$ such that $h_{i+1}=qh_i$ for a given ratio $q$ and interval length $h_i=x_{i+1}-x_i$. The first interval length can either be explicitly given or be deduced by multiplying the ratio with the last interval length in the container.

References Dune::back().

geometricFillRange()

template<typename Grid >

void Dune::TensorGridFactory< Grid >::geometricFillRange ( int  d, int  n, ctype  end, ctype  h = static_cast<ctype> (0), bool  first = true  )

inline

fills a coordinate range in direction d with n intervals according to a geometric series

Parameters

d	the coordinate direction
n	the number of intervals to add
end	the coordinate of the upper border of the range
h	the interval length to start or end with (see below) (optional)
first	true if the given h is to be the first interval, false if last one

Given a vector with last element $x_0$, this will add elements $x_1,\dots ,x_n$ such that the ratio $h_{i+1} / h_i$ is fixed throughout the range and $x_n=end$, while $h_i=x_{i+1}-x_i$ is the interval length. The first interval length can either be explicitly given or be deduced by taking the last interval length in the container. By setting the optional parameter first to false, the given h can instead be used as last interval length in the range.

References Dune::back().

geometricFillUntil()

template<typename Grid >

void Dune::TensorGridFactory< Grid >::geometricFillUntil ( int  d, ctype  ratio, ctype  end, ctype  h0 = static_cast<ctype> (0)  )

inline

adds intervals in direction d according with a given length ratio until a given coordinate is reached

Parameters

d	the coordinate direction
ratio	the ratio of $h_{i+1}$ to $h_i$
end	the coordinate on the right border of the range
h0	the starting interval length (optional)

Given a vector with last element $x_0$, this will add elements $x_1,\dots ,x_n$ such that - with $h_i=x_{i+1}-x_i$ - $h_{i+1}=qh_i$ for a given ratio $q$ and that $x_n < end < x_n + h$. The first interval length can either be explicitly given or be deduced by multiplying the ratio with the last interval length in the container.

References Dune::back().

setStart()

template<typename Grid >

void Dune::TensorGridFactory< Grid >::setStart ( int  d, ctype  value  )

inline

set a starting value in a given direction d

Parameters

d	the coordinate direction
value	the value to set

This resizes the coordinate vector for the given direction to 1. Not using this function will result in 0.0 to be used as a lower bound of the coordinate range.

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

• dune/grid/utility/tensorgridfactory.hh