Grid factory. More...

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

Static Public Member Functions
static shared_ptr< Grid >	createStructuredGrid (const GridParameters &params, const arma::Col< double > &lowerLeft, const arma::Col< double > &upperRight, const arma::Col< unsigned int > &nElements)
	Construct a regular structured grid. More...

static shared_ptr< Grid >	importGmshGrid (const GridParameters &params, const std::string &fileName, bool verbose=false, bool insertBoundarySegments=false)
	Import grid from a file in Gmsh format. More...

static shared_ptr< Grid >	importGmshGrid (const GridParameters &params, const std::string &fileName, std::vector< int > &boundaryId2PhysicalEntity, std::vector< int > &elementIndex2PhysicalEntity, bool verbose=true, bool insertBoundarySegments=false)
	Import grid from a file in Gmsh format. More...

static shared_ptr< Grid >	createGridFromConnectivityArrays (const GridParameters &params, const arma::Mat< double > &vertices, const arma::Mat< int > &elementCorners, const std::vector< int > &domainIndices=std::vector< int >())
	Create a grid from connectivity arrays. More...

Detailed Description

Grid factory.

This class provides static member functions to construct grids on the fly and to import grids from existing files.

Member Function Documentation

shared_ptr< Grid > Bempp::GridFactory::createGridFromConnectivityArrays	(	const GridParameters &	params,
		const arma::Mat< double > &	vertices,
		const arma::Mat< int > &	elementCorners,
		const std::vector< int > &	domainIndices = `std::vector<int>()`
	)

static

Create a grid from connectivity arrays.

Parameters

[in]	params	Parameters of the grid to be constructed.
[in]	vertices	2D array whose (i, j)th element contains the ith component of the jth vertex.
[in]	elementCorners	2D array whose (i, j)th element contains the index of the ith vertex of the jth element.
[in]	domainIndices	(Optional) Vector whose ith element contains the domain index of the ith element. By default, this argument is set to an empty vector, in which case all elements are taken to belong to domain 0.

Note: Currently only grids with triangular topology are supported.

References Bempp::toString(), and Bempp::GridParameters::TRIANGULAR.

shared_ptr< Grid > Bempp::GridFactory::createStructuredGrid	(	const GridParameters &	params,
		const arma::Col< double > &	lowerLeft,
		const arma::Col< double > &	upperRight,
		const arma::Col< unsigned int > &	nElements
	)

static

Construct a regular structured grid.

Parameters

[in]	params	Parameters of the grid to be constructed.
[in]	lowerLeft	Coordinates of the lower left corner of the grid.
[in]	upperRight	Coordinates of the upper right corner of the grid.
[in]	nElements	Number of grid subdivisions in each direction.

This function constructs a regular structured grid. Its dimension, dimGrid, and the dimension of the surrounding space, dimWorld, are determined from the parameter params. The constructed grid covers the dimGrid-dimensional cube

[lowerLeft(0) upperRight(0)] x [lowerLeft(1) upperRight(1)] x ... x [lowerLeft(dimGrid-1), upperRight(dimGrid-1)].

The last dimWorld - dimGrid dimensions of all grid points are set to zero.

Each side of the cube parallel to the nth coordinate axis is subdivided into nElements(n) segments.

Note: Currently only grids with triangular topology are supported.

References Dune::BemppStructuredGridFactory< GridType >::createSimplexGrid(), and Bempp::GridParameters::TRIANGULAR.

shared_ptr< Grid > Bempp::GridFactory::importGmshGrid	(	const GridParameters &	params,
		const std::string &	fileName,
		bool	verbose = `false`,
		bool	insertBoundarySegments = `false`
	)

static

Import grid from a file in Gmsh format.

Parameters

[in]	params	Parameters of the grid to be constructed.
[in]	fileName	Name of the Gmsh file.
[in]	verbose	Output diagnostic information.
[in]	insertBoundarySegments

Bug:: Ask Dune developers about the significance of insertBoundarySegments.

See Also: http://geuz.org/gmsh/ for information about the Gmsh file format.; Dune::GmshReader documentation for information about the supported Gmsh features.

References Bempp::GridParameters::TETRAHEDRAL, and Bempp::GridParameters::TRIANGULAR.

shared_ptr< Grid > Bempp::GridFactory::importGmshGrid	(	const GridParameters &	params,
		const std::string &	fileName,
		std::vector< int > &	boundaryId2PhysicalEntity,
		std::vector< int > &	elementIndex2PhysicalEntity,
		bool	verbose = `true`,
		bool	insertBoundarySegments = `false`
	)

static

Import grid from a file in Gmsh format.

Parameters

[in]	params	Parameters of the grid to be constructed.
[in]	fileName	Name of the Gmsh file.
[in]	boundaryId2PhysicalEntity
[in]	elementIndex2PhysicalEntity
[in]	verbose	Output diagnostic information.
[in]	insertBoundarySegments

Bug:: Ask Dune developers about the significance of the undocumented parameters.

See Also: http://geuz.org/gmsh/ for information about the Gmsh file format.; Dune::GmshReader documentation for information about the supported Gmsh features.

References Bempp::GridParameters::TETRAHEDRAL, and Bempp::GridParameters::TRIANGULAR.

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

/home/wojtek/Projects/BEM/bempp-sven/bempp/lib/grid/grid_factory.hpp
/home/wojtek/Projects/BEM/bempp-sven/bempp/lib/grid/grid_factory.cpp

Static Public Member Functions

Detailed Description

Member Function Documentation