[vtkusers] Strange VTK Behavior...

[Andrea Gavana]

Hello John,

    thank you for your answer. Well, I don't think I have coincident cells,
and at the moment I have taken the screenshots I didn't have any filter. I
had just an unstructured grid with a property selected. BTW, I noticed that
the effect disappears *only* when I rotate the grid in such a way that its
upper surface is perpendicular to my eyes' view (parallel to the screen... I
don't know how to explain it better...). But obviously I can not leave it
always in that position...

Thank you for your suggestions.

Andrea.


On 4/3/06, John Platt <jcplatt at dsl.pipex.com> wrote:
>
>  Hi Andrea,
>
>
>
> Do you have any coincident cells with different scalars (some filters will
> merge points when they are very close).
>
>
>
> John.
>
>
>
> -----Original Message-----
> *From:* vtkusers-bounces+jcplatt=dsl.pipex.com at vtk.org [mailto:
> vtkusers-bounces+jcplatt=dsl.pipex.com at vtk.org] *On Behalf Of *Andrea
> Gavana
> *Sent:* 03 April 2006 15:06
> *To:* vtkusers at public.kitware.com
> *Subject:* [vtkusers] Strange VTK Behavior...
>
>
>
> Hello NG,
>
>
>
>     thanks to Amy, John, Goodwin and Prabhu I solved the problem of
> vtkThreshold (I think :-) ). Now everything seems OK, except one small
> thing. I have a vtkUnstructuredGrid in which I have some scalars. Now,
> irrespective of which scalar I am visualizing, I get strange visualization
> effects when I rotate/zoom the vtkUnstructuredGrid. For example and for
> comparison, please see the 2 pictures here:
>
>
>
> http://xoomer.virgilio.it/infinity77/AlmostOK.JPG
>
>
>
> http://xoomer.virgilio.it/infinity77/SomethingWrong.JPG
>
>
>
>
>
> They are showing exactly the same grid with the same scalars, but in the
> second one there are strokes of green that should not be there...
>
> Does anyone know what I am doing wrong? May it be a light problem?
>
>
>
> Thank you very much for your help and suggestions.
>
>
>
> Andrea.
>
> --
> "Imagination Is The Only Weapon In The War Against Reality."
>
> http://xoomer.virgilio.it/infinity77/
>
>



--
"Imagination Is The Only Weapon In The War Against Reality."

http://xoomer.virgilio.it/infinity77/
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