MiIsosurfExtractUnstructured Class Reference
[Isosurface]

Isosurface extractor for unstructured meshes More...

#include <MeshVizXLM/extractors/MiIsosurfExtractUnstructured.h>

Inheritance diagram for MiIsosurfExtractUnstructured:

List of all members.

Public Member Functions
virtual	~MiIsosurfExtractUnstructured ()
virtual const MeXSurfaceMeshUnstructured &	extractIsovalue (double isovalue, const MiScalardSetI &dataSet, const MiCellFilterI *cellFilter=NULL)=0
virtual const MeXLineMeshUnstructured &	extractLineIsovalue (double isovalue, const MiScalardSetI &dataSet, const MiCellFilterI *cellFilter=NULL)=0
virtual const MeXScalardSetI &	extractScalarSet (const MiScalardSetI &inputSet)=0
virtual const MeXVec3dSetI &	extractVec3Set (const MiVec3dSetI &inputSet)=0
virtual const MeXSurfaceMeshUnstructured &	getExtract () const =0
virtual const MeXLineMeshUnstructured &	getLineExtract () const =0
Static Public Member Functions
static MiIsosurfExtractUnstructured *	getNewInstance (const MiVolumeMeshUnstructured &mesh, bool parallel=true, MiTessellator *tessellator=NULL)

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Detailed Description

Isosurface extractor for unstructured meshes

Builds the isosurface of the given isovalue in the given dataset.

When MiVolumeCell::getIsosurfTopology() cannot be defined in polyhedral cells, an MiTessellator::getNewTessellatorPolyhedron() is required as an argument of getNewInstance() to produce a volume mesh made up of cells compatible with the marching cube algorithm.

Note:

Only instances from MiTessellator::getNewTessellatorPolyhedron() are supported, any other types derived from MiTessellator will be ignored.

See related examples:

Bench_Isosurf, Bench_MultipleExtractors

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Constructor & Destructor Documentation

virtual MiIsosurfExtractUnstructured::~MiIsosurfExtractUnstructured

(

)

[inline, virtual]

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Member Function Documentation

virtual const MeXSurfaceMeshUnstructured& MiIsosurfExtractUnstructured::extractIsovalue	(	double	isovalue,
		const MiScalardSetI &	dataSet,
		const MiCellFilterI *	cellFilter = NULL
	)			[pure virtual]

Builds the isosurface of the given isovalue in the given dataset as a surface mesh.

Note:

In the case of a dataset bound PER_CELL, it will be converted into a new internal dataset bound PER_NODE and cached in the extractor.

Parameters:

	isovalue	Value for which an isosurface must be computed
	dataSet	The input data set used to compute the isovalue from. When extracting from a MiVolumeMeshVertexHexahedronIjk, this dataset must be bound PER_CELL, otherwise the extraction will thow a std::exception.
	cellFilter	The cell filter

Returns:

The extracted isosurface

virtual const MeXLineMeshUnstructured& MiIsosurfExtractUnstructured::extractLineIsovalue	(	double	isovalue,
		const MiScalardSetI &	dataSet,
		const MiCellFilterI *	cellFilter = NULL
	)			[pure virtual]

Builds the isosurface of the given isovalue in the given dataset and as a line mesh representing the edges of each cell.

Note:

In the case of a dataset bound PER_CELL, it will be converted into a new internal dataset bound PER_NODE and cached in the extractor.

Parameters:

	isovalue	Value for which an isosurface must be computed
	dataSet	The input data set used to compute the isovalue from
	cellFilter	The cell filter

Returns:

The extracted isosurface as line mesh

virtual const MeXScalardSetI& MiIsosurfExtractUnstructured::extractScalarSet

(

const MiScalardSetI &

inputSet

)

[pure virtual]

Extracts a scalar set from the volume mesh.

The scalars are mapped onto the current extracted isosurface refering to either the line mesh or the surface mesh depending on whether extractIsovalue() or extractLineIsovalue() was last called.

Parameters:

inputSet

the input scalar set defined on the volume mesh

Returns:

the output scalar set defined on the latest extracted mesh

virtual const MeXVec3dSetI& MiIsosurfExtractUnstructured::extractVec3Set

(

const MiVec3dSetI &

inputSet

)

[pure virtual]

Extracts a vector set from the volume mesh.

The vectors are mapped onto the current extracted isosurface refering to either the line mesh or the surface mesh depending on whether extractIsovalue() or extractLineIsovalue() was last called.

Parameters:

inputSet

the input vector set defined on the volume mesh

Returns:

the output vector set defined on the latest extracted mesh

virtual const MeXSurfaceMeshUnstructured& MiIsosurfExtractUnstructured::getExtract

(

)

const [pure virtual]

Returns the result of the extraction as a mesh.

virtual const MeXLineMeshUnstructured& MiIsosurfExtractUnstructured::getLineExtract

(

)

const [pure virtual]

Returns the result of the extraction as a line mesh.

static MiIsosurfExtractUnstructured* MiIsosurfExtractUnstructured::getNewInstance	(	const MiVolumeMeshUnstructured &	mesh,
		bool	parallel = true,
		MiTessellator *	tessellator = NULL
	)			[static]

Factory method returning a new instance of a class implementing this interface.

Parameters:

	mesh	The input mesh
	parallel	When true, tries to create an extract module using a parallel algorithm to speed up the extraction.
	tessellator	The tessellator object used for tessellating non linear cells (quadratic,...).

Note:

Only some of the extraction algorithms have a parallel implementation.

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

• MeshVizXLM/extractors/MiIsosurfExtractUnstructured.h