walberla::field::FieldPointer< Field_T, FieldMember, Value_T > Class Template Reference

Detailed Description

template<typename Field_T, typename FieldMember, typename Value_T>
class walberla::field::FieldPointer< Field_T, FieldMember, Value_T >

Class representing on Field coordinate.

What is this class good for?

Suppose there is a PDF field, and a function that calculates the density of a cell

void calcDensity( const GhostLayerField<real_t,19>::base_iterator & it ) {
   // calculates density using it.neighbor() or it.getF()
}

This function cannot be called when only a x,y,z coordinate is available. A FieldPointer is a class that behaves like a FieldIterator but can be constructed from x,y,z,f coordinates. So the code can be rewritten as:

template< typename Iter>
void calcDensity( const Iter & it );
 
// and calculate the density of cell 3,2,4 using a FieldPointer
calcDensity( GhostLayerField<real_t,19>::Ptr( 3,2,4) );

Do not use this directly use the typedef Field::Ptr

#include <FieldPointer.h>

Public Types
using	value_type = Value_T

Public Member Functions
	FieldPointer (FieldMember &field, cell_idx_t _x, cell_idx_t _y, cell_idx_t _z, cell_idx_t _f=0)
void	set (cell_idx_t _x, cell_idx_t _y, cell_idx_t _z)
value_type &	operator* () const
value_type &	operator-> () const
value_type &	getF (cell_idx_t cf) const
value_type &	getF (uint_t cf) const
value_type &	operator[] (cell_idx_t cf) const
value_type &	operator[] (uint_t cf) const
value_type &	neighbor (stencil::Direction d, cell_idx_t cf=0) const
value_type &	neighbor (stencil::Direction d, uint_t cf) const
value_type &	neighbor (cell_idx_t cx, cell_idx_t cy, cell_idx_t cz, cell_idx_t cf=0) const
value_type &	neighbor (cell_idx_t cx, cell_idx_t cy, cell_idx_t cz, uint_t cf) const
cell_idx_t &	x ()
cell_idx_t	x () const
cell_idx_t &	y ()
cell_idx_t	y () const
cell_idx_t &	z ()
cell_idx_t	z () const
cell_idx_t &	f ()
cell_idx_t	f () const
Cell	cell () const
const FieldMember *	getField () const

Static Public Attributes
static const uint_t	F_SIZE = Field_T::F_SIZE

Protected Attributes
cell_idx_t	x_
cell_idx_t	y_
cell_idx_t	z_
cell_idx_t	f_
FieldMember &	field_

Member Typedef Documentation

value_type

template<typename Field_T , typename FieldMember , typename Value_T >

using walberla::field::FieldPointer< Field_T, FieldMember, Value_T >::value_type = Value_T

Constructor & Destructor Documentation

FieldPointer()

template<typename Field_T , typename FieldMember , typename Value_T >

walberla::field::FieldPointer< Field_T, FieldMember, Value_T >::FieldPointer ( FieldMember &  field, cell_idx_t  _x, cell_idx_t  _y, cell_idx_t  _z, cell_idx_t  _f = 0  )

inline

Member Function Documentation

cell()

template<typename Field_T , typename FieldMember , typename Value_T >

Cell walberla::field::FieldPointer< Field_T, FieldMember, Value_T >::cell ( ) const

inline

f() [1/2]

template<typename Field_T , typename FieldMember , typename Value_T >

cell_idx_t& walberla::field::FieldPointer< Field_T, FieldMember, Value_T >::f ( )

inline

f() [2/2]

template<typename Field_T , typename FieldMember , typename Value_T >

cell_idx_t walberla::field::FieldPointer< Field_T, FieldMember, Value_T >::f ( ) const

inline

getF() [1/2]

template<typename Field_T , typename FieldMember , typename Value_T >

value_type& walberla::field::FieldPointer< Field_T, FieldMember, Value_T >::getF ( cell_idx_t  cf ) const

inline

getF() [2/2]

template<typename Field_T , typename FieldMember , typename Value_T >

value_type& walberla::field::FieldPointer< Field_T, FieldMember, Value_T >::getF ( uint_t  cf ) const

inline

getField()

template<typename Field_T , typename FieldMember , typename Value_T >

const FieldMember* walberla::field::FieldPointer< Field_T, FieldMember, Value_T >::getField ( ) const

inline

neighbor() [1/4]

template<typename Field_T , typename FieldMember , typename Value_T >

value_type& walberla::field::FieldPointer< Field_T, FieldMember, Value_T >::neighbor ( cell_idx_t  cx, cell_idx_t  cy, cell_idx_t  cz, cell_idx_t  cf = 0  ) const

inline

neighbor() [2/4]

template<typename Field_T , typename FieldMember , typename Value_T >

value_type& walberla::field::FieldPointer< Field_T, FieldMember, Value_T >::neighbor ( cell_idx_t  cx, cell_idx_t  cy, cell_idx_t  cz, uint_t  cf  ) const

inline

neighbor() [3/4]

template<typename Field_T , typename FieldMember , typename Value_T >

value_type& walberla::field::FieldPointer< Field_T, FieldMember, Value_T >::neighbor ( stencil::Direction  d, cell_idx_t  cf = 0  ) const

inline

neighbor() [4/4]

template<typename Field_T , typename FieldMember , typename Value_T >

value_type& walberla::field::FieldPointer< Field_T, FieldMember, Value_T >::neighbor ( stencil::Direction  d, uint_t  cf  ) const

inline

operator*()

template<typename Field_T , typename FieldMember , typename Value_T >

value_type& walberla::field::FieldPointer< Field_T, FieldMember, Value_T >::operator* ( ) const

inline

operator->()

template<typename Field_T , typename FieldMember , typename Value_T >

value_type& walberla::field::FieldPointer< Field_T, FieldMember, Value_T >::operator-> ( ) const

inline

operator[]() [1/2]

template<typename Field_T , typename FieldMember , typename Value_T >

value_type& walberla::field::FieldPointer< Field_T, FieldMember, Value_T >::operator[] ( cell_idx_t  cf ) const

inline

operator[]() [2/2]

template<typename Field_T , typename FieldMember , typename Value_T >

value_type& walberla::field::FieldPointer< Field_T, FieldMember, Value_T >::operator[] ( uint_t  cf ) const

inline

set()

template<typename Field_T , typename FieldMember , typename Value_T >

void walberla::field::FieldPointer< Field_T, FieldMember, Value_T >::set ( cell_idx_t  _x, cell_idx_t  _y, cell_idx_t  _z  )

inline

x() [1/2]

template<typename Field_T , typename FieldMember , typename Value_T >

cell_idx_t& walberla::field::FieldPointer< Field_T, FieldMember, Value_T >::x ( )

inline

x() [2/2]

template<typename Field_T , typename FieldMember , typename Value_T >

cell_idx_t walberla::field::FieldPointer< Field_T, FieldMember, Value_T >::x ( ) const

inline

y() [1/2]

template<typename Field_T , typename FieldMember , typename Value_T >

cell_idx_t& walberla::field::FieldPointer< Field_T, FieldMember, Value_T >::y ( )

inline

y() [2/2]

template<typename Field_T , typename FieldMember , typename Value_T >

cell_idx_t walberla::field::FieldPointer< Field_T, FieldMember, Value_T >::y ( ) const

inline

z() [1/2]

template<typename Field_T , typename FieldMember , typename Value_T >

cell_idx_t& walberla::field::FieldPointer< Field_T, FieldMember, Value_T >::z ( )

inline

z() [2/2]

template<typename Field_T , typename FieldMember , typename Value_T >

cell_idx_t walberla::field::FieldPointer< Field_T, FieldMember, Value_T >::z ( ) const

inline

Member Data Documentation

f_

template<typename Field_T , typename FieldMember , typename Value_T >

cell_idx_t walberla::field::FieldPointer< Field_T, FieldMember, Value_T >::f_

protected

F_SIZE

template<typename Field_T , typename FieldMember , typename Value_T >

const uint_t walberla::field::FieldPointer< Field_T, FieldMember, Value_T >::F_SIZE = Field_T::F_SIZE

static

field_

template<typename Field_T , typename FieldMember , typename Value_T >

FieldMember& walberla::field::FieldPointer< Field_T, FieldMember, Value_T >::field_

protected

x_

template<typename Field_T , typename FieldMember , typename Value_T >

cell_idx_t walberla::field::FieldPointer< Field_T, FieldMember, Value_T >::x_

protected

y_

template<typename Field_T , typename FieldMember , typename Value_T >

cell_idx_t walberla::field::FieldPointer< Field_T, FieldMember, Value_T >::y_

protected

z_

template<typename Field_T , typename FieldMember , typename Value_T >

cell_idx_t walberla::field::FieldPointer< Field_T, FieldMember, Value_T >::z_

protected

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

• /builds/administration/walberla-website/walberla/src/field/iterators/FieldPointer.h