dune-grid 2.9.0
Classes | Public Types | Public Member Functions | Protected Types | Static Protected Attributes | List of all members
Dune::GridFactoryInterface< GridType > Class Template Referenceabstract

Provide a generic factory class for unstructured grids. More...

#include <dune/grid/common/gridfactory.hh>

Inheritance diagram for Dune::GridFactoryInterface< GridType >:
Inheritance graph

Classes

struct  Codim
 

Public Types

using Communication = Dune::Communication< typename MPIHelper::MPICommunicator >
 

Public Member Functions

 GridFactoryInterface ()
 Default constructor. More...
 
virtual ~GridFactoryInterface ()
 virtual destructor More...
 
virtual void insertVertex (const FieldVector< ctype, dimworld > &pos)=0
 Insert a vertex into the coarse grid. More...
 
virtual void insertElement (const GeometryType &type, const std::vector< unsigned int > &vertices)=0
 Insert an element into the coarse grid. More...
 
virtual DUNE_NO_DEPRECATED_BEGIN void insertElement (const GeometryType &type, const std::vector< unsigned int > &vertices, const std::shared_ptr< VirtualFunction< FieldVector< ctype, dimension >, FieldVector< ctype, dimworld > > > &elementParametrization)
 Insert a parametrized element into the coarse grid. More...
 
virtual DUNE_NO_DEPRECATED_END void insertElement (const GeometryType &type, const std::vector< unsigned int > &vertices, std::function< FieldVector< ctype, dimworld >(FieldVector< ctype, dimension >)> elementParametrization)
 Insert a parametrized element into the coarse grid. More...
 
virtual void insertBoundarySegment (const std::vector< unsigned int > &vertices)=0
 insert a boundary segment More...
 
virtual void insertBoundarySegment (const std::vector< unsigned int > &vertices, const std::shared_ptr< BoundarySegment< dimension, dimworld > > &boundarySegment)
 insert an arbitrarily shaped boundary segment More...
 
virtual std::unique_ptr< GridType > createGrid ()=0
 Finalize grid creation and hand over the grid. More...
 
virtual unsigned int insertionIndex (const typename Codim< 0 >::Entity &entity) const
 obtain an element's insertion index More...
 
virtual unsigned int insertionIndex (const typename Codim< dimension >::Entity &entity) const
 obtain a vertex' insertion index More...
 
virtual unsigned int insertionIndex (const typename GridType::LeafIntersection &intersection) const
 obtain a boundary's insertion index More...
 
virtual bool wasInserted (const typename GridType::LeafIntersection &intersection) const
 determine whether an intersection was inserted More...
 
Communication comm () const
 Return the Communication used by the grid factory. More...
 

Protected Types

typedef GridType::ctype ctype
 Type used by the grid for coordinates. More...
 

Static Protected Attributes

static const int dimension = GridType::dimension
 dimension of the grid More...
 
static constexpr int dimworld = GridType::dimensionworld
 The grid world dimension. More...
 

Detailed Description

template<class GridType>
class Dune::GridFactoryInterface< GridType >

Provide a generic factory class for unstructured grids.

This base class declares the interface.

Example use: create a grid consisting of a cube triangulated into 6 tetrahedra:

Left: cube with vertex numbers. Middle: cube triangulated into six tetrahedra. Right: exploded version of the middle figure, with number for the tetrahedra.
factory.insertVertex({0, 0, 0});
factory.insertVertex({1, 0, 0});
factory.insertVertex({0, 1, 0});
factory.insertVertex({1, 1, 0});
factory.insertVertex({0, 0, 1});
factory.insertVertex({1, 0, 1});
factory.insertVertex({0, 1, 1});
factory.insertVertex({1, 1, 1});
std::shared_ptr<Grid> gridp(factory.createGrid());
@ tetrahedron
Definition: common.hh:138
virtual void insertElement(const GeometryType &type, const std::vector< unsigned int > &vertices)
Insert an element into the coarse grid.
Definition: common/gridfactory.hh:346
virtual void insertVertex(const FieldVector< ctype, dimworld > &pos)
Insert a vertex into the coarse grid.
Definition: common/gridfactory.hh:335
virtual std::unique_ptr< GridType > createGrid()
Finalize grid creation and hand over the grid.
Definition: common/gridfactory.hh:372

Make sure that the inserted elements are not inverted, since not all grids support that. For instance, in the following code snippet the elements 1, 3 and 5 are inverted while elements 0, 2 and 4 are not.

Member Typedef Documentation

◆ Communication

template<class GridType >
using Dune::GridFactoryInterface< GridType >::Communication = Dune::Communication<typename MPIHelper::MPICommunicator>

◆ ctype

template<class GridType >
typedef GridType::ctype Dune::GridFactoryInterface< GridType >::ctype
protected

Type used by the grid for coordinates.

Constructor & Destructor Documentation

◆ GridFactoryInterface()

template<class GridType >
Dune::GridFactoryInterface< GridType >::GridFactoryInterface ( )
inline

Default constructor.

◆ ~GridFactoryInterface()

template<class GridType >
virtual Dune::GridFactoryInterface< GridType >::~GridFactoryInterface ( )
inlinevirtual

virtual destructor

Member Function Documentation

◆ comm()

template<class GridType >
Communication Dune::GridFactoryInterface< GridType >::comm ( ) const
inline

Return the Communication used by the grid factory.

Defaults to the Communication induced by the process-local communicator.

◆ createGrid()

template<class GridType >
virtual std::unique_ptr< GridType > Dune::GridFactoryInterface< GridType >::createGrid ( )
pure virtual

Finalize grid creation and hand over the grid.

The receiver takes responsibility of the memory allocated for the grid

Implemented in Dune::GridFactory< AlbertaGrid< dim, dimworld > >, Dune::GridFactory< GridType >, Dune::GridFactory< Grid >, Dune::GridFactory< Dune::UGGrid< dim > >, and Dune::GridFactory< UGGrid< dimworld > >.

◆ insertBoundarySegment() [1/2]

template<class GridType >
virtual void Dune::GridFactoryInterface< GridType >::insertBoundarySegment ( const std::vector< unsigned int > &  vertices)
pure virtual

insert a boundary segment

This method inserts a boundary segment into the coarse grid. Using this method has two advantages over not using it:

  • The boundary segment gets an insertion index.
  • The grid factory can verify that this is actually a boundary segment
Note
You are not forced to insert all boundary segments. The grid factory will find the remaining boundary segments itself.
Parameters
[in]verticesthe indices of the vertices of the segment

Implemented in Dune::GridFactory< AlbertaGrid< dim, dimworld > >, Dune::GridFactory< GridType >, Dune::GridFactory< Grid >, Dune::GridFactory< Dune::UGGrid< dim > >, Dune::GridFactory< UGGrid< dimworld > >, Dune::GridFactory< GridType >, Dune::GridFactory< Grid >, and Dune::GridFactory< Dune::UGGrid< dim > >.

◆ insertBoundarySegment() [2/2]

template<class GridType >
virtual void Dune::GridFactoryInterface< GridType >::insertBoundarySegment ( const std::vector< unsigned int > &  vertices,
const std::shared_ptr< BoundarySegment< dimension, dimworld > > &  boundarySegment 
)
inlinevirtual

insert an arbitrarily shaped boundary segment

This method inserts a boundary segment into the coarse grid.

Parameters
[in]verticesthe indices of the vertices of the segment
[in]boundarySegmentuser defined implementation of the boundary segment's geometry

Reimplemented in Dune::GridFactory< GridType >, Dune::GridFactory< Grid >, and Dune::GridFactory< Dune::UGGrid< dim > >.

◆ insertElement() [1/3]

template<class GridType >
virtual void Dune::GridFactoryInterface< GridType >::insertElement ( const GeometryType &  type,
const std::vector< unsigned int > &  vertices 
)
pure virtual

Insert an element into the coarse grid.

Parameters
typeThe GeometryType of the new element
verticesThe vertices of the new element, using the DUNE numbering

Make sure the inserted element is not inverted (this holds even for simplices). There are grids that can't handle inverted elements.

Implemented in Dune::GridFactory< AlbertaGrid< dim, dimworld > >, Dune::GridFactory< GridType >, Dune::GridFactory< Grid >, Dune::GridFactory< Dune::UGGrid< dim > >, and Dune::GridFactory< UGGrid< dimworld > >.

◆ insertElement() [2/3]

template<class GridType >
virtual DUNE_NO_DEPRECATED_BEGIN void Dune::GridFactoryInterface< GridType >::insertElement ( const GeometryType &  type,
const std::vector< unsigned int > &  vertices,
const std::shared_ptr< VirtualFunction< FieldVector< ctype, dimension >, FieldVector< ctype, dimworld > > > &  elementParametrization 
)
inlinevirtual

Insert a parametrized element into the coarse grid.

Parameters
typeThe GeometryType of the new element
verticesThe vertices of the new element, using the DUNE numbering
elementParametrizationA function prescribing the shape of this element

Make sure the inserted element is not inverted (this holds even for simplices). There are grids that can't handle inverted elements.

Deprecated:
[After Dune 2.7] VirtualFunction is deprecated, use the overload taking a std::function instead

◆ insertElement() [3/3]

template<class GridType >
virtual DUNE_NO_DEPRECATED_END void Dune::GridFactoryInterface< GridType >::insertElement ( const GeometryType &  type,
const std::vector< unsigned int > &  vertices,
std::function< FieldVector< ctype, dimworld >(FieldVector< ctype, dimension >)>  elementParametrization 
)
inlinevirtual

Insert a parametrized element into the coarse grid.

Parameters
typeThe GeometryType of the new element
verticesThe vertices of the new element, using the DUNE numbering
elementParametrizationA function prescribing the shape of this element

Make sure the inserted element is not inverted (this holds even for simplices). There are grids that can't handle inverted elements.

◆ insertionIndex() [1/3]

template<class GridType >
virtual unsigned int Dune::GridFactoryInterface< GridType >::insertionIndex ( const typename Codim< 0 >::Entity &  entity) const
inlinevirtual

obtain an element's insertion index

Data can be associated to the created macro grid using the insertion index of each entity that has been inserted during the grid creation process.

Between grid construction (createGrid) and the first grid modification, this method allows to obtain this insertion index from the grid factory. This way, data can be stored using the index maps provided by the grid.

Parameters
[in]entityentity whose insertion index is requested
Returns
insertion index of the entity

Reimplemented in Dune::GridFactory< AlbertaGrid< dim, dimworld > >, and Dune::GridFactory< UGGrid< dimworld > >.

◆ insertionIndex() [2/3]

template<class GridType >
virtual unsigned int Dune::GridFactoryInterface< GridType >::insertionIndex ( const typename Codim< dimension >::Entity &  entity) const
inlinevirtual

obtain a vertex' insertion index

Data can be associated to the created macro grid using the insertion index of each entity that has been inserted during the grid creation process.

Between grid construction (createGrid) and the first grid modification, this method allows to obtain this insertion index from the grid factory. This way, data can be stored using the index maps provided by the grid.

Parameters
[in]entityentity whose insertion index is requested
Returns
insertion index of the entity

Reimplemented in Dune::GridFactory< AlbertaGrid< dim, dimworld > >, and Dune::GridFactory< UGGrid< dimworld > >.

◆ insertionIndex() [3/3]

template<class GridType >
virtual unsigned int Dune::GridFactoryInterface< GridType >::insertionIndex ( const typename GridType::LeafIntersection &  intersection) const
inlinevirtual

obtain a boundary's insertion index

Data can be associated to the created macro grid using the insertion index of each entity that has been inserted during the grid creation process.

Between grid construction (createGrid) and the first grid modification, this method allows to obtain this insertion index from the grid factory. This way, data can be stored using the index maps provided by the grid.

Parameters
[in]intersectionintersection whose insertion index is requested
Returns
insertion index of the intersection
Note
The insertion index can only be obtained for boundary intersections that were actually inserted (see also wasInserted).

◆ insertVertex()

template<class GridType >
virtual void Dune::GridFactoryInterface< GridType >::insertVertex ( const FieldVector< ctype, dimworld > &  pos)
pure virtual

Insert a vertex into the coarse grid.

Implemented in Dune::GridFactory< GridType >, Dune::GridFactory< Grid >, and Dune::GridFactory< Dune::UGGrid< dim > >.

◆ wasInserted()

template<class GridType >
virtual bool Dune::GridFactoryInterface< GridType >::wasInserted ( const typename GridType::LeafIntersection &  intersection) const
inlinevirtual

determine whether an intersection was inserted

This method allows checking whether an intersection was actually inserted into the grid factory.

Note
Not all boundary segments need to be inserted into the grid factory.
This method returns false for all interior intersections
Parameters
[in]intersectionintersection in question
Returns
true, if the intersection was inserted

Member Data Documentation

◆ dimension

template<class GridType >
const int Dune::GridFactoryInterface< GridType >::dimension = GridType::dimension
staticprotected

dimension of the grid

◆ dimworld

template<class GridType >
constexpr int Dune::GridFactoryInterface< GridType >::dimworld = GridType::dimensionworld
staticconstexprprotected

The grid world dimension.


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