MiIsosurfExtractIjk Class Reference

Isosurface extractor for structured volume meshes More...

#include <MeshVizXLM/extractors/MiIsosurfExtractIjk.h>

Inheritance diagram for MiIsosurfExtractIjk:

Public Member Functions
virtual	~MiIsosurfExtractIjk ()
virtual const MeXSurfaceMeshUnstructured &	extractIsovalue (double isovalue, const MiScalardSetIjk &dataSet, const MiCellFilterIjk *cellFilter=NULL)=0
	Builds the isosurface of the given isovalue in the given dataset as a surface mesh.
virtual const MeXScalardSetI &	extractScalarSet (const MiScalardSetIjk &inputSet)=0
	Computes a scalar set on the extracted isosurface.
virtual const MeXVec3dSetI &	extractVec3Set (const MiVec3dSetIjk &inputSet)=0
	Computes a vector set on the extracted isosurface.
virtual const MeXSurfaceMeshUnstructured &	getExtract () const =0
	Returns the result of the extraction as a mesh.
Public Member Functions inherited from MiBaseExtractor
virtual	~MiBaseExtractor ()
virtual void	setExtractorCallback (MiExtractorCallback *extractorCallback)=0
	Set the user defined extractor callback which will be called before each extraction, during each extraction and after each extraction.
virtual SoDEPRECATED void	setExtractorCallback (MiExtractorCallback &extractorCallback)

Static Public Member Functions
static MiIsosurfExtractIjk *	getNewInstance (const MiVolumeMeshRegular &mesh, bool parallel=true, MiTessellator *tessellator=NULL)
	Factory method returning a new instance of a class implementing this interface.
static MiIsosurfExtractIjk *	getNewInstance (const MiVolumeMeshCurvilinear &mesh, bool parallel=true, MiTessellator *tessellator=NULL)
static MiIsosurfExtractIjk *	getNewInstance (const MiVolumeMeshRectilinear &mesh, bool parallel=true, MiTessellator *tessellator=NULL)
static MiIsosurfExtractIjk *	getNewInstance (const MiVolumeMeshVertexHexahedronIjk &mesh, bool parallel=true, MiTessellator *tessellator=NULL)

Detailed Description

Isosurface extractor for structured volume meshes

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

Definition at line 46 of file MiIsosurfExtractIjk.h.

Constructor & Destructor Documentation

~MiIsosurfExtractIjk()

virtual MiIsosurfExtractIjk::~MiIsosurfExtractIjk ( )

inlinevirtual

Definition at line 49 of file MiIsosurfExtractIjk.h.

Member Function Documentation

extractIsovalue()

virtual const MeXSurfaceMeshUnstructured & MiIsosurfExtractIjk::extractIsovalue ( double  isovalue, const MiScalardSetIjk &  dataSet, const MiCellFilterIjk *  cellFilter = NULL  )

pure virtual

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

Note

Memory requirement: The extractIsovalue method allocates a block of memory. The size (in bytes) is the number of cells in the mesh. For a large mesh this is a significant amount of memory. For example, a mesh 2000 x 2000 x 2000 requires 8 giga-bytes of memory to extract an isosurface. Applications should use try/catch blocks to handle the case where this memory allocation fails. Also note that this memory is retained until the extractor is destroyed.

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

Implemented in MiIsosurfExtractHexahedronIjk.

extractScalarSet()

virtual const MeXScalardSetI & MiIsosurfExtractIjk::extractScalarSet ( const MiScalardSetIjk &  inputSet )

pure virtual

Computes a scalar set on the extracted isosurface.

Parameters

inputSet

the input scalar set defined on the volume mesh When extracting from a MiVolumeMeshVertexHexahedronIjk, this dataset must be bound PER_CELL, otherwise the extraction will thow a std::exception.

Returns

the output scalar set defined on the resulting isosurface mesh

Implemented in MiIsosurfExtractHexahedronIjk.

extractVec3Set()

virtual const MeXVec3dSetI & MiIsosurfExtractIjk::extractVec3Set ( const MiVec3dSetIjk &  inputSet )

pure virtual

Computes a vector set on the extracted isosurface.

Parameters

inputSet

the input vec3 set defined on the volume mesh When extracting from a MiVolumeMeshVertexHexahedronIjk, this dataset must be bound PER_CELL, otherwise the extraction will thow a std::exception.

Returns

the output scalar set defined on the resulting isosurface mesh

Implemented in MiIsosurfExtractHexahedronIjk.

getExtract()

virtual const MeXSurfaceMeshUnstructured & MiIsosurfExtractIjk::getExtract ( ) const

pure virtual

Returns the result of the extraction as a mesh.

getNewInstance() [1/4]

static MiIsosurfExtractIjk * MiIsosurfExtractIjk::getNewInstance ( const MiVolumeMeshCurvilinear &  mesh, bool  parallel = true, MiTessellator *  tessellator = NULL  )

static

getNewInstance() [2/4]

static MiIsosurfExtractIjk * MiIsosurfExtractIjk::getNewInstance ( const MiVolumeMeshRectilinear &  mesh, bool  parallel = true, MiTessellator *  tessellator = NULL  )

static

getNewInstance() [3/4]

static MiIsosurfExtractIjk * MiIsosurfExtractIjk::getNewInstance ( const MiVolumeMeshRegular &  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.

getNewInstance() [4/4]

static MiIsosurfExtractIjk * MiIsosurfExtractIjk::getNewInstance ( const MiVolumeMeshVertexHexahedronIjk &  mesh, bool  parallel = true, MiTessellator *  tessellator = NULL  )

static

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

• MeshVizXLM/extractors/MiIsosurfExtractIjk.h