[ANAG] [anag-cvs] [chombousers] Re: [Paraview] CHOMBO file converter for PARAVIEW

[Berk Geveci]

My work is similar to John's work but is now built into VTK proper. It
is relatively recent, a little over 1 year old. It supports
rectilinear AMR grids natively and does not convert them to
unstructured grids. Support for curvilinear grids is not hard to add.
If you have a current ParaView (as of 2.4, I belive), you can see it
in action by creating a Hierarchical Fractal from the Source menu.

Also, CTH is structured and supports AMR:
(http://www.cs.sandia.gov/web9232/cth/).

-Berk

On 4/24/06, Brian Van Straalen <bvs at hpcrdm.lbl.gov> wrote:
>
> Well, that would be of interest to us.  I was not aware that VTK had any
> native AMR data structures.
> Is this a fairly recent development ?  I thought CTH was an unstructured
> finite element code.
>
> are are we still discussing turning the structured-adaptive data into a
> fully unstructured grid for
> visualization ?
>
> Is this the converter that John Shalf originally put together, or
> have their been multiple independent efforts to create HDF5toVTK
> data converters ?
>
> Berk Geveci wrote:
>
> >Have you considered writing a native AMR reader for Chombo?
> >VTK/ParaView support AMR datasets now. I had a simple Chombo reader
> >working at one point but it is not production quality. The only AMR
> >reader in VTK is for CTH right now.  I would be happy to help.
> >
> >-Berk
> >
> >On 4/24/06, Burlen <burlen at apollo.sr.unh.edu> wrote:
> >
> >>Currently there are a number of options for visualizing CHOMBO data including
> >>CHOMBOVIS, and VISIT. I'd like to contribute yet another option, a file
> >>converter that allows the data to be used with PARAVIEW or any other
> >>application that can read VTK's file format. The converter's primary use is
> >>to construct a dataset spanning the entire problem domain using the highest
> >>resolution data available for a given spatial location, while avoiding
> >>visualization issues associated with multi resolution data. Also the
> >>converter can extract boxes from a specific level, allowing one to visualize
> >>CHOMBO's box layout, level by level. One nice feature of the converter is
> >>that it has a command line interface and can batch process CHOMBO's plot
> >>files, resulting in a numbered sequence of VTK files which PARAVIEW can
> >>animate easily. Currently the converter only handles 2 & 3D cell centered
> >>data, and only reads the HDF5 file format used by CHOMBOVIS. It has gone
> >>through a number of revisions, and may be usefull to those who prefer
> >>PARAVIEW for visualization. Development and preliminary testing have been
> >>done using Fedora 2 linux (single proc), HDF5 1.6.3, and VTK 4.4.2 I hope to
> >>make improvements in the future, and test the converter on more platforms.
> >>More information and tarballs can be found at
> >>http://quaoar.sr.unh.edu/chhdf52FlatVtk
> >>
> >>--
> >>
> >>Burlen Loring
> >>Space Science Center
> >>Institute for the Study of Earth, Oceans, and Space
> >>University of New Hampshire
> >>39 College Road, Durham, NH 03824
> >>Phone: 603-862-1140
> >>_______________________________________________
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> >>ParaView at paraview.org
> >>http://www.paraview.org/mailman/listinfo/paraview
> >>
> >>
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