AW: [Paraview] [vtm] file formats

[Sören Freudiger]

Hi Berk

That was the format I already have tested, but run into problems with
uninitialized areas. Because of that I have to write each block into an
separate "image". But this end in a huge number of files. Is there some kind
of "multi image" format for string a set of data inside a file without
defining any cells and points?

And I have still some problems with understanding the terms of the vtrm
file:

    <RefinementRatio level="0" refinement="2"/>
    <RefinementRatio level="1" refinement="3"/>
    <DataSet group="0" dataset="0" amr_box="0 7 0 7 0 7"
file="chombo3d_0.vti"/>
    <DataSet group="1" dataset="0" amr_box="0 15 0 15 0 15"
file="chombo3d_1.vti"/>

What effects do I have if I increase "refinement"?
--> does that mean that my indices of the amr_box of the level have to be
increased to?

And means amr_box="0 15 0 15 0 15" amr_box="minx maxX minY maxY minZ maxZ"?

SirAnn


-----Ursprüngliche Nachricht-----
Von: Berk Geveci [mailto:berk.geveci at kitware.com] 
Gesendet: Donnerstag, 7. Juni 2007 18:01
An: Sören Freudiger
Cc: paraview at paraview.org
Betreff: Re: [Paraview] [vtm] file formats

Hi Soren,

If you checkout VTKData from CVS, there is an example file there. It
is VTKData/Data/chombo3d/chombo3d.vtm. Let me know if have any
questions about the format once you look at the example. You will have
to provide dummy values for cells that are overlapped by higher
levels. I would recommend using values from higher levels if possible.
There are tools in paraview that let you explore a certain level. In
this case, it would be useful to have valid values even on cells that
are covered by higher order ones. Other than that, if you follow the
example of  chombo3d.vtm, paraview will automatically detect overlaps
and hide the cells that have higher level versions. In order for this
to work properly, you have to make sure that you specify amr_box for
each block properly.

-berk


On 6/7/07, Sören Freudiger <muffmolch at gmx.de> wrote:
> I cannot find any explizit information about the metafile file format of
the
> vtm files.
> Can anybody help me out?
> Expecially for the hieracrchicalboxset format (AMR Block...).
>
> We need to write a multiblock file with different refinement levels. Each
> block has an uniform matrix dataset (equal resolution inside each block).
> The image data format seems to fit quite well, but makes problems if not
> every node of the "whole extend" gets values. Even if these areas are
> overlapped by finer blocks.
>
> Thanks for any help or examples.
>
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-- 
 Berk Geveci
 Kitware Inc.
 28 Corporate Drive
 Clifton Park, NY, 12065