#include <msh_gmshreader.h>

Collaboration diagram for GmshMeshReader:

Public Types
typedef std::map< std::string, std::vector< GMSH_DataHeader > >	HeaderTable

Public Member Functions
	TYPEDEF_ERR_INFO (EI_FieldName, std::string)

	TYPEDEF_ERR_INFO (EI_GMSHFile, std::string)

	TYPEDEF_ERR_INFO (EI_Time, double)

	DECLARE_INPUT_EXCEPTION (ExcFieldNameNotFound,<< "No data for field: "<< EI_FieldName::qval<< " and time: "<< EI_Time::val<< " in the input file: "<< EI_GMSHFile::qval)

	GmshMeshReader (const FilePath &file_name)

	GmshMeshReader (std::istream &in)

	~GmshMeshReader ()

void	read_mesh (Mesh mesh, const RegionDB::MapElementIDToRegionID el_to_reg_map=NULL)

template<typename T >
ElementDataCache< T >::ComponentDataPtr	get_element_data (GMSH_DataHeader &search_header, std::vector< int > const &el_ids, unsigned int component_idx)

template<typename T >
ElementDataCache< T >::ComponentDataPtr	get_element_data (GMSH_DataHeader &search_header, std::vector< int > const &el_ids, unsigned int component_idx)

Private Member Functions
void	read_physical_names (Tokenizer &in, Mesh *mesh)

void	read_nodes (Tokenizer &in, Mesh *)

void	read_elements (Tokenizer &in, Mesh , const RegionDB::MapElementIDToRegionID el_to_reg_map=NULL)

void	read_data_header (Tokenizer &tok, GMSH_DataHeader &head)

void	make_header_table ()

GMSH_DataHeader &	find_header (double time, std::string field_name)

Private Attributes
Tokenizer	tok_
	Tokenizer used for reading ASCII GMSH file format. More...

HeaderTable	header_table_
	Table with data of ElementData headers. More...

ElementDataCacheBase *	current_cache_
	Cache with last read element data. More...

Detailed Description

Definition at line 91 of file msh_gmshreader.h.

Member Typedef Documentation

typedef std::map< std::string, std::vector<GMSH_DataHeader> > GmshMeshReader::HeaderTable

Map of ElementData sections in GMSH file.

For each field_name contains vector of GMSH_DataHeader. Headers are sorted by time in ascending order.

Definition at line 107 of file msh_gmshreader.h.

Constructor & Destructor Documentation

GmshMeshReader::GmshMeshReader ( const FilePath & file_name )

Construct the GMSH format reader from given filename. This opens the file for reading.

Definition at line 51 of file msh_gmshreader.cc.

GmshMeshReader::GmshMeshReader ( std::istream & in )

Construct the GMSH format reader from given input stream. The input stream should be correctly opened. To get correct information about line numbers there should be no previous reading from the stream.

Definition at line 61 of file msh_gmshreader.cc.

GmshMeshReader::~GmshMeshReader ( )

Destructor close the file if opened.

Definition at line 71 of file msh_gmshreader.cc.

Member Function Documentation

GmshMeshReader::DECLARE_INPUT_EXCEPTION	(	ExcFieldNameNotFound	,
		<< "No data for field: "<< EI_FieldName::qval<< " and time: "<< EI_Time::val<< " in the input file: "<< EI_GMSHFile::qval
	)

GMSH_DataHeader & GmshMeshReader::find_header	(	double	time,
		std::string	field_name
	)

private

Finds GMSH data header for ElementData given by time and field_name and return it as the first parameter.

Definition at line 430 of file msh_gmshreader.cc.

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template<typename T >

ElementDataCache<T>::ComponentDataPtr GmshMeshReader::get_element_data	(	GMSH_DataHeader &	search_header,
		std::vector< int > const &	el_ids,
		unsigned int	component_idx
	)

Reads ElementData sections of opened GMSH file. The file is serached for the \$ElementData section with header that match the given search_header (same field_name, time of the next section is the first greater then that given in the search_header). If such section has not been yet read, we read the data section into raw buffer data. The map id_to_idx is used to convert IDs that marks individual input rows/entities into indexes to the raw buffer. The buffer must have size at least search_header.n_components * search_header.n_entities. Indexes in the map must be smaller then search_header.n_entities. If the data buffer is updated we set search_header.actual to true.

Possible optimizations: If the map ID lookup seem slow, we may assume that IDs are in increasing order, use simple array of IDs instead of map and just check that they comes in in correct order.

template<typename T >

ElementDataCache<T>::ComponentDataPtr GmshMeshReader::get_element_data	(	GMSH_DataHeader &	search_header,
		std::vector< int > const &	el_ids,
		unsigned int	component_idx
	)

Definition at line 306 of file msh_gmshreader.cc.

void GmshMeshReader::make_header_table ( )

private

Reads table of ElementData headers from the tokenizer file.

Definition at line 402 of file msh_gmshreader.cc.

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void GmshMeshReader::read_data_header	(	Tokenizer &	tok,
		GMSH_DataHeader &	head
	)

private

Reads the header from the tokenizer tok and return it as the second parameter.

Definition at line 249 of file msh_gmshreader.cc.

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void GmshMeshReader::read_elements	(	Tokenizer &	in,
		Mesh *	mesh,
		const RegionDB::MapElementIDToRegionID *	el_to_reg_map = `NULL`
	)

private

Method for reading of elements. Optional map el_to_reg_map can be used to override region of some elements provided by GMSH file. Input of the mesh allows changing regions within the input CON file.

Definition at line 119 of file msh_gmshreader.cc.

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void GmshMeshReader::read_mesh	(	Mesh *	mesh,
		const RegionDB::MapElementIDToRegionID *	el_to_reg_map = `NULL`
	)

Reads mesh from the GMSH file. Optional map el_to_reg_map can be used to override region of some elements provided by GMSH file. Input of the mesh allows changing regions within the input CON file.

Definition at line 76 of file msh_gmshreader.cc.

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void GmshMeshReader::read_nodes	(	Tokenizer &	in,
		Mesh *	mesh
	)

private

private method for reading of nodes

Definition at line 87 of file msh_gmshreader.cc.

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void GmshMeshReader::read_physical_names	(	Tokenizer &	in,
		Mesh *	mesh
	)

private

Read section '$PhysicalNames' of the GMSH file and save the physical sections as regions in the RegionDB.

Region Labels starting with '!' are treated as boundary regions. Elements of these regions are used just to assign regions to the boundary and are not used in actual FEM computations.

Definition at line 220 of file msh_gmshreader.cc.

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GmshMeshReader::TYPEDEF_ERR_INFO	(	EI_FieldName	,
		std::string
	)

GmshMeshReader::TYPEDEF_ERR_INFO	(	EI_GMSHFile	,
		std::string
	)

GmshMeshReader::TYPEDEF_ERR_INFO	(	EI_Time	,
		double
	)

Member Data Documentation

ElementDataCacheBase* GmshMeshReader::current_cache_

private

Cache with last read element data.

Definition at line 189 of file msh_gmshreader.h.

HeaderTable GmshMeshReader::header_table_

private

Table with data of ElementData headers.

Definition at line 187 of file msh_gmshreader.h.

Tokenizer GmshMeshReader::tok_

private

Tokenizer used for reading ASCII GMSH file format.

Definition at line 185 of file msh_gmshreader.h.

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

/home/cygwin64/F123-windows-release/flow123d/src/mesh/msh_gmshreader.h
/home/cygwin64/F123-windows-release/flow123d/src/mesh/msh_gmshreader.cc

Public Types

Public Member Functions

Private Member Functions

Private Attributes

Detailed Description

Member Typedef Documentation

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation