Class MiStreamlineExtractUnstructured

  • All Implemented Interfaces:
    MiBaseExtractor, MiStreamlineExtractBase

    public abstract class MiStreamlineExtractUnstructured
    extends java.lang.Object
    implements MiStreamlineExtractBase
    Streamline extractor for unstructured 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 Detail

      • extractStreamlines

        public abstract java.util.List<MeXLineMeshCurvilinear<MeXTopologyI,​MeXGeometryI>> extractStreamlines​(MiVec3dSetI inputDataSet,
                                                                                                                   MiCellFilterI 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 java.util.List<MeXScalardSetI> extractScalarSet​(MiScalardSetI inputSet)
        Extracts from the mesh a list of scalar sets.
        The scalars are mapped onto the current extracted streamlines. If the dataset is binded PER_NODE the scalars are interpolated and one scalar is binded per node of the extracted streamlines. Otherwise one scalar is binded per edge of the extracted streamlines.
        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 java.util.List<MeXVec3dSetI> extractVec3Set​(MiVec3dSetI inputSet)
        Extracts from the mesh a list of vector sets.
        The vectors are mapped onto the current extracted streamlines. If the dataset is binded PER_NODE the vectors are interpolated and one vector is binded per node of the extracted streamlines. Otherwise one vector is binded per edge of the extracted streamlines.
        Parameters:
        inputSet - the input vector set defined on the original volume mesh
        Returns:
        the output vector sets defined on the resulting edge meshes