[Paraview] Re: Stream tracing

[Berk Geveci]

This grid looks awfully like AMR. Can you give us more information
about its structure? Do you have multiple blocks, each of different
resolution or just one unstructured grid? Also, you may want to take a
look this page: http://quaoar.sr.unh.edu/chhdf52FlatVtk/ You may not
be able to use the code as it is but it will give you an idea on
tetrahedralizing this mesh.

-bebrk

On 2/17/08, Stefan Murphy <stefan.murphy at dal.ca> wrote:
> I had a previous post looking for help with a stream tracing problem.
>  I sent some data to Berk and he said that my problem lies with my
>  grid. He said: "I am seeing problems with the way you wrote this mesh.
>
> It looks like you are creating duplicate points or something like
>  that. The mesh is not "water-tight". When you load it in paraview,
>  change the representation to wireframe. This is supposed to show only
>  the external surfaces as wireframe. Instead, it shows a lot of
>  internal boundaries."
>
>
> I ditched my VTK output routine and adopted some functions that have
>  been successfully used to create OpenDX files. With this routine I
>  shouldn't have any issues with duplicate points, etc. With the new
>  routine I am having the same problem with my mesh. I am wondering if
>
> my problem could have anything to do with the following:
>
>
> My grid is cartesian and unstructured (vtk cell type 11). There are 6
>  sides per cell, but it is possible to have more than 6 neighbouring
>  cells. I attached a picture to show what I mean. I would think this is
>  a common thing with unstructured cartesian grids, but I am starting to
>  scrape the bottom of the barrel here and I am wondering if anyone
>  thinks this could be a problem.
>
>  Has anyone been successful in implementing my type of grid in ParaView before?
>
>
>
>  Stefan
>
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