[Paraview] Smooth seams in SILO files

[David Ortley]

Utkarsh:

Thanks.  That did the trick.  I had to add a 'Threshold' filter in the mix
to remove the ghost cells, which were confusing the 'Merge Blocks' filter.

I've actually been staring at those boundary lines for over a year and a
half and I've very glad to finally have them gone

Again, thank you very much.

-David Ortley

On Wed, Feb 25, 2015 at 7:26 AM, Utkarsh Ayachit <
utkarsh.ayachit at kitware.com> wrote:

> Try applying "Merge Blocks" and before applying the
> CellDatatoPointData. ParaView indeed treats each block separately.
> When you do "Merge Blocks", it will merge all the blocks into a single
> unstructured grid. This will make it possible to get a more reliable
> CellDataToPointData conversion across the block seams and hence avoid
> the seams on contouring.
>
> Utkarsh
>
> On Tue, Feb 24, 2015 at 6:13 PM, David Ortley <djortley at gmail.com> wrote:
> > Hello all,
> >
> > We have a CFD code that generates silo files using the silo library.  For
> > each dump in the simulation, there are multiple files per dump (one file
> per
> > processor) and a single master file.
> >
> > When we use Visit to visualize a contour, the contours look good.  When
> > using Paraview (any version), there exist obvious seams at the file
> > boundaries.  To visualize in Paraview, we use the 'CellDatatoPointData'
> > filter followed by the 'Contour' filter.
> >
> > I'm currently trying to track down if either Visit is magically healing
> over
> > a bug in our implementation, or if the problem lies with Paraview
> > somehow...or with how I'm trying to generate the contour (via the
> > 'CellDatatoPointData' filter.)
> >
> >
> > It almost looks like Paraview is treating the edge of each file as if it
> > were an open boundary regardless of whether it is buttressed up against
> > another file.
> >
> > Thanks for any help in this.
> >
> > -David Ortley
> >
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