Inheritance diagram for Sundance::BamgMeshReader:

Public Member Functions
	BamgMeshReader (const std::string &filename, const MeshType &meshType, const bool bbAttr, int verbosity=0, const MPIComm &comm=MPIComm::world())
	BamgMeshReader (const ParameterList &params)
virtual	~BamgMeshReader ()
virtual Mesh	fillMesh () const
virtual std::string	description () const
virtual RCP< MeshSourceBase >	getRcp ()
Private Member Functions
void	readParallelInfo (Array< int > &ptGID, Array< int > &ptOwner, Array< int > &elemGID, Array< int > &elemOwner) const
Mesh	readNodes (Array< int > &ptGID, Array< int > &ptOwner) const
void	readElems (Mesh &mesh, const Array< int > &nodeGID, Array< int > &elemGID, Array< int > &elemOwner) const
Mesh	readMesh (Array< int > &ptGID, Array< int > &ptOwner) const
Private Attributes
std::string	nodeFilename_
std::string	elemFilename_
std::string	parFilename_
std::string	meshFilename_
std::string	bbFilename_
int	bbAttr_

Detailed Description

BamgMeshReader reads a mesh stored in Frederic Hecht's g format.

!!The description below is for TriangleMeshReader & needs modification!!

This format is documented at the Triangle homepage. This reader expects to find node information in .node files and element information in .ele files. The filename constructor argument is the stem of the filenames, and so that a reader constructed with filename joe will look for node and element data in joe.node and joe.ele respectively. Node and element attributes are read if present, and can be accessed with the getAttributes() method of MeshSource.

Parallel extensions

We have extended the Triangle format to deal with distributed meshes. A TriangleMeshReader is constructed with an MPIComm object, and if that communicator has more than one processor the mesh is assumed to be split into files, one for each processor. Data on mesh "joe" for the nnn-th processor will be found in the files

joe.node.nnn
joe.ele.nnn
joe.par.nnn

The .node.nnn and .ele.nnn files contain the node and element data for the part of the mesh seen by the nnn-th processor. The node and element numberings given in those two files are local indexes. The .par.nnn contains node and element ownership information for the part of the mesh seen by the nnn-th processor.

A .par file is formatted as follows:

First line: rank numProcs
Second line: numPoints
Next nPoints lines: ptLID ptGID ptOwnerRank
Next line: numElems
Next nElems lines: elemLID elemGID elemOwnerRank

Definition at line 106 of file SundanceBamgMeshReader.hpp.

Constructor & Destructor Documentation

BamgMeshReader::BamgMeshReader	(	const std::string &	filename,
		const MeshType &	meshType,
		const bool	bbAttr,
		int	verbosity = `0`,
		const MPIComm &	comm = `MPIComm::world()`
	)

Definition at line 52 of file SundanceBamgMeshReader.cpp.

References bbFilename_, elemFilename_, meshFilename_, Sundance::MeshSourceBase::myRank(), nodeFilename_, Sundance::MeshSourceBase::nProc(), parFilename_, SUNDANCE_OUT, Sundance::toString(), and Playa::ObjectWithVerbosity::verb().

BamgMeshReader::BamgMeshReader ( const ParameterList & params )

Construct from a ParameterList

Definition at line 94 of file SundanceBamgMeshReader.cpp.

References bbFilename_, elemFilename_, meshFilename_, Sundance::MeshSourceBase::myRank(), nodeFilename_, Sundance::MeshSourceBase::nProc(), parFilename_, SUNDANCE_OUT, Sundance::toString(), and Playa::ObjectWithVerbosity::verb().

virtual Sundance::BamgMeshReader::~BamgMeshReader ( ) [inline, virtual]

virtual dtor

Definition at line 118 of file SundanceBamgMeshReader.hpp.

Member Function Documentation

virtual std::string Sundance::BamgMeshReader::description ( ) const [inline, virtual]

Print a short descriptive std::string

Reimplemented from Sundance::MeshSourceBase.

Definition at line 125 of file SundanceBamgMeshReader.hpp.

References Sundance::MeshReaderBase::filename().

Mesh BamgMeshReader::fillMesh ( ) const [virtual]

Create a mesh

Implements Sundance::MeshSourceBase.

Definition at line 131 of file SundanceBamgMeshReader.cpp.

References readMesh(), and readParallelInfo().

virtual RCP<MeshSourceBase> Sundance::BamgMeshReader::getRcp ( ) [inline, virtual]

Method for reading a .bb file Return a ref count pointer to self

Implements Playa::Handleable< MeshSourceBase >.

Definition at line 133 of file SundanceBamgMeshReader.hpp.

void Sundance::BamgMeshReader::readElems	(	Mesh &	mesh,
		const Array< int > &	nodeGID,
		Array< int > &	elemGID,
		Array< int > &	elemOwner
	)		const `[private]`

Mesh BamgMeshReader::readMesh	(	Array< int > &	ptGID,
		Array< int > &	ptOwner
	)		const `[private]`

add method that reads both nodes and elements from a single file

Definition at line 282 of file SundanceBamgMeshReader.cpp.

References Sundance::Mesh::addElement(), Sundance::Mesh::addVertex(), Sundance::MeshReaderBase::atof(), Sundance::MeshReaderBase::atoi(), bbAttr_, bbFilename_, Sundance::MeshSourceBase::createMesh(), Sundance::dimension(), Sundance::MeshSourceBase::elemAttributes(), meshFilename_, Sundance::MeshSourceBase::nodeAttributes(), Sundance::MeshReaderBase::openFile(), Sundance::Mesh::spatialDim(), SUNDANCE_OUT, and Playa::ObjectWithVerbosity::verb().

Referenced by fillMesh().

Mesh Sundance::BamgMeshReader::readNodes	(	Array< int > &	ptGID,
		Array< int > &	ptOwner
	)		const `[private]`

void BamgMeshReader::readParallelInfo	(	Array< int > &	ptGID,
		Array< int > &	ptOwner,
		Array< int > &	elemGID,
		Array< int > &	elemOwner
	)		const `[private]`