[Paraview] Combining pieces into one dataset?

[Biddiscombe, John A.]

Thomas,

Unfortunately, it sounds like what you have got is two datasets separated by a one cell wide gap. Unless you find a way to tell ParaView that there are cells that exist in the gap, then it can't guess. Even if you "append grids", you'll end up with all the cells correct except for the gap region (unless I misunderstood your problem and you actually have grids that touch correctly in which case append grids should work).
The usual way is to provide some ghost cells at the boundary of (one or) both sub-grids - a layer one cell thick that produces the overlap. Whatever is producing the data ought to "know" what cells to add, otherwise your simulation would also have a gap - can you add it to your exported data?

JB


> -----Original Message-----
> From: paraview-bounces at paraview.org [mailto:paraview-bounces at paraview.org]
> On Behalf Of Thomas Ruedas
> Sent: 26 February 2010 05:29
> To: paraview at paraview.org
> Subject: [Paraview] Combining pieces into one dataset?
> 
> Hi,
> I am new to Paraview and try to put it to use for visualizing a certain
> kind of dataset that consists of two Pieces. The data are given in a
> .vtu file on the two identical subgrids of a so-called Yin-Yang grid
> with minimum overlap, which combine to form a spherical shell;
> essentially, the combined grid looks like a tennisball or baseball.
> My problem is that the individual Pieces are shown nicely, and the whole
> dataset also looks correct, but at the boundary between the two Pieces,
> there is a gap, because Paraview doesn't interpolate between them. Is
> there a possibility in Paraview to combine the Pieces into one, so that
> the boundary disappears and everything looks smooth? I had tried to do
> that with Group Datasets, but that doesn't have any visible effect.
> I am using Paraview 3.6.2 under Mac OS X Leopard.
> Thomas
> --
> -----------------------------------
> Thomas Ruedas
> Department of Terrestrial Magnetism
> Carnegie Institution of Washington
> http://www.dtm.ciw.edu/users/ruedas/
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