[Paraview] Trouble making stream traces

[Berk Geveci]

John,

This sounds like a bug in VTK. I will investigate it in the future. By
the way, VTK does have a 9-node quad. It is called
VTK_BIQUADRATIC_QUAD and it's type id is 28. See attached document. I
don't exactly know when these cells made their way into VTK but I know
they are in ParaView 3.

-berk


On 5/30/07, John Fettig <jfettig at sandia.gov> wrote:
> Berk,
>
> I have verified that my connectivity is correct.  I have attached a much
> smaller file, only 15 nodes and 4 elements.  Still has problem doing
> streamtraces.  Guess I'm gonna go back to 4xlinear quads.  Would be nice
> if there was a 9-noded quad...
>
> John
>
>
> On Wed, 2007-05-30 at 10:44 -0400, Berk Geveci wrote:
> > Hi John,
> >
> > After you verify that the connectivity is correct, please let me know
> > if the problem persists. The quadratic cell classes are still young
> > and may have issues.
> >
> > -berk
> >
> >
> > On 5/30/07, John Fettig <jfettig at sandia.gov> wrote:
> > > Dan,
> > >
> > > Thanks for putting me on the right track.  I am outputting quadratic
> > > triangles from the code, but my code actually has quadratic
> > > quadrilaterals (the vtk format doesn't have a 9-noded quad), so I'm sure
> > > I've made some mistake in that connectivity code.  I didn't have this
> > > problem when I output 4 linear quads.
> > >
> > > John
> > >
> > > On Tue, 2007-05-29 at 19:54 -0500, Dan Goldstein wrote:
> > > > Hi John,
> > > >    I too have found the stream traces filter hard. While I have not
> > > > figured it all out it seems most of the troubles I have had were
> > > > related
> > > > to bad cell connectivity in the data set. I took your data and made a
> > > > little picture with stream traces(See attachment). To get it to work
> > > > I
> > > > had to first run through the "tetrahedralize" filter. I believe that
> > > > doing this fixes the internal cell connectivities. I am sure someone
> > > > from KiteWare can give a real answer to what it is really doing. I
> > > > hope
> > > > this helps:
> > > >
> > >
> > >
> > > _______________________________________________
> > > ParaView mailing list
> > > ParaView at paraview.org
> > > http://www.paraview.org/mailman/listinfo/paraview
> > >
> >
> >
>
>


-- 
 Berk Geveci
 Kitware Inc.
 28 Corporate Drive
 Clifton Park, NY, 12065
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