[Paraview] Visualization of principle stresses

[David E DeMarle]

Since your data consists of locally 2D elements (triangles, not gets)
you might have better luck with both LIC and streamlines if you first
apply the "Surface Vectors" filter. This constrains the vector
data such that it is always tangential to the local surface.

Also, another option for vector visualization you might try is the
Warp be Vector filter, which bends the geometry according to the local
vector field.

David E DeMarle
Kitware, Inc.
R&D Engineer
21 Corporate Drive
Clifton Park, NY 12065-8662
Phone: 518-881-4909



On Fri, Mar 9, 2012 at 7:40 AM, gebbi86 <gebbi86 at googlemail.com> wrote:
> Dear all,
>
> i want to visualize the directions of principle stresses computed by a
> finite element solver in paraview. I got the directions of these stresses as
> vectors. I used the legacy vtk file format. I choosed the unstructured grid
> dataset with triangle elements for the grid(as they are in the FE solver).
> For the vectors i choosed CELL_DATA and every cell got an vector. I used the
> glyph filter to visualize these vectors ( CELL CENTERS-> GLYPH), but is
> there an other possibility to do that? Not as arrows or so, but to get a
> result like streamtracers? Interpolated lines? Streamtracers doesnt work
> here, because i think they have a direction and the principle stresses have
> no direction. I tried the Surface LIC representation, but i got no other
> result as with the surface representation.
> To cut a long story short: I have vectors as CELL_DATA and a unstructured
> grid and i want to visualize them as closed lines over the grid. And not
> with the glyph filter, that works but I would prefer this other
> representation.
> I'm new in paraview so i hope you can help me with this topic and I'm
> looking forward for your answers.
>
> Greetings,
> Eric
>
>
>
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