Package com.openinventor.meshvizxlm.extractors.streamline

Class MiStreamlineExtractIjk

java.lang.Object

com.openinventor.meshvizxlm.extractors.streamline.MiStreamlineExtractIjk

All Implemented Interfaces:

MiBaseExtractor, MiExtractorIjk, MiStreamlineExtractBase

Direct Known Subclasses:

MiStreamlineExtractHexahedronIjk

public abstract class MiStreamlineExtractIjk
extends Object
implements MiStreamlineExtractBase, MiExtractorIjk

Streamline extractor for structured volume meshes.

Builds a list of MiLineMeshCurvilinear interfaces containing streamlines starting from a list of source points and probes the input mesh to compute the values at the streamline nodes (See MiPointProbeUnstructured for settings).
A streamline is a line that is everywhere tangent to a vector field. Streamlines are meaningless for unsteady flow, because time is not taken into account during the computation of the line. Streamlines are integrated from a given set of vectors using a Runge/Kutta method of order 2.

Method Summary

Modifier and Type	Method	Description
abstract List<MeXScalardSetI>	extractScalarSet(MiScalardSetIjk inputSet)	Extracts from the mesh a list of scalar sets. The scalars are mapped onto the current extracted streamlines.
abstract List<MeXLineMeshCurvilinear<MeXTopologyI,MeXGeometryI>>	extractStreamlines(MiVec3dSetIjk inputDataSet, MiCellFilterIjk cellFilter, double[]... startPoints)	Builds the topology and geometry of the streamlines starting at the given points in the given dataset.
abstract List<MeXVec3dSetI>	extractVec3Set(MiVec3dSetIjk inputSet)	Extracts from the mesh a list of vector sets. The vectors are mapped onto the current extracted streamlines.
abstract List<MeXLineMeshCurvilinear<MeXTopologyI,MeXGeometryI>>	getExtract()	Returns the result of the extraction as a mesh.
static <T extends MiTopologyIjk, G extends MiGeometryHexahedronIjk> MiStreamlineExtractIjk	getNewInstance(MiVolumeMeshVertexHexahedronIjk<T,G> mesh)	Create an instance of a streamlines extractor for a non indexed hexahedron volume mesh IJK.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface com.openinventor.meshvizxlm.extractors.MiBaseExtractor

setExtractorCallback

Methods inherited from interface com.openinventor.meshvizxlm.extractors.MiExtractorIjk

addCellRange, clearCellRanges

Methods inherited from interface com.openinventor.meshvizxlm.extractors.streamline.MiStreamlineExtractBase

setIntegrationDirection, setIntegrationMaxStepNumber, setIntegrationStepLengthFactor, setMaxLength, setMaxLifeTime, setMinSpeed

Method Details

getNewInstance

public static <T extends MiTopologyIjk,
G extends MiGeometryHexahedronIjk>
MiStreamlineExtractIjk getNewInstance(MiVolumeMeshVertexHexahedronIjk<T,G> mesh)

Create an instance of a streamlines extractor for a non indexed hexahedron volume mesh IJK.

Parameters:

mesh - the input mesh

Returns:

a streamlines extractor for a non indexed hexahedron volume mesh IJK

extractStreamlines

public abstract List<MeXLineMeshCurvilinear<MeXTopologyI,MeXGeometryI>> extractStreamlines(MiVec3dSetIjk inputDataSet,
 MiCellFilterIjk cellFilter,
 double[]... startPoints)

Builds the topology and geometry of the streamlines starting at the given points in the given dataset. The resulting streamlines can be retrieved by calling getExtract().

Parameters:

inputDataSet - defines the vector field for the streamlines integration

cellFilter - the cell filter

startPoints - defines the list of start points {x,y,z} for the streamlines integration

Returns:

the extracted streamlines as curvilinear line meshes

extractScalarSet

public abstract List<MeXScalardSetI> extractScalarSet(MiScalardSetIjk inputSet)

Extracts from the mesh a list of scalar sets.
The scalars are mapped onto the current extracted streamlines.

Note : The argument i,j,k of the method MiScalardSetIjk.get(int, int, int) refers to the cell (i,j,k). Thus the binding of the input set must be PER_CELL. An UnsupportedOperationException is thrown otherwise.

Parameters:

inputSet - the input scalar set defined on the original volume mesh

Returns:

the output scalar sets defined on the resulting edge meshes

extractVec3Set

public abstract List<MeXVec3dSetI> extractVec3Set(MiVec3dSetIjk inputSet)

Extracts from the mesh a list of vector sets.
The vectors are mapped onto the current extracted streamlines.

Note : The argument i,j,k of the method MiVec3dSetIjk.get(int, int, int) refers to the cell (i,j,k). Thus the binding of the input set must be PER_CELL. An UnsupportedOperationException is thrown otherwise.

Parameters:

inputSet - the input vector set defined on the original volume mesh

Returns:

the output vector sets defined on the resulting edge meshes

getExtract

public abstract List<MeXLineMeshCurvilinear<MeXTopologyI,MeXGeometryI>> getExtract()

Returns the result of the extraction as a mesh.

Returns:

result of the extraction as a mesh