streamTubeStats - Stream tube statistics

Given a set of streamlines that represents the bounds of triangular-wedge shaped volumes, gather statistics of the volumes. Output the results as a triangulated surface MEF file, where for each triangle, the values at all three nodes are equal and represent the quanity computed for the entire wedge volume. Thus, the MEF format is overloaded here so that each node is multiply-defined, based on the number of triangles is it part of. The resulting MEF file will also contain the area of the triangle from the original tesselation that created the seed points for the streamline, with the intention that the results here can be used to construct statistics weighted by this area. Typically, this processing is used to gather statistics associated with a isosurface (such as one that represents a flame).

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