Hi Dan!

I’m familiar with the HDF5 library and documentation, but thanks anyway for the 
link.

I don’t see how I can have ParaView read and understand HDF5 files. That is, 
there are several readers (e.g. H5Nimrod) that use HDF5 as the underlying 
format, but I don’t see how to get paraview to understand which arrays are 
coordinates (nodes?), which are results, etc. for my application.

Perhaps I should stress again that I have limited experience with ParaView, and 
since the supported file formats and possibilities seem endless, I have trouble 
getting an overview of sensible choices.

My preference for hdf5 is partly due to other software in my organization 
supporting this format, and my own familiarity with it.

Paul

> On 7. jun. 2015, at 04.07, Dan Lipsa <dan.li...@kitware.com> wrote:
> 
> Hi Paul,
> Indeed #2 makes sense, especially if you want to change the in-house format. 
> To write the file (from the simulation) it seems to me you should checkout
> 
> https://www.hdfgroup.org/HDF5/doc/fortran/index.html
> 
> I don't see why ParaView would be used in that process. Am I missing 
> something? 
> Dan
> 
> 
> 
> On Sat, Jun 6, 2015 at 8:04 AM Paul Anton Letnes <p...@letnes.com> wrote:
> Hi, fellow paraviewers!
> 
> I’ve spent some time playing with tutorials and user manuals, and so far I’m 
> impressed with what paraview can do.
> 
> I am working on a specialized structural engineering program that, mainly, 
> performs simulations of pipes with circular cross sections. Each pipe is 
> split into nodes and 1D elements, and results are reported at points (or, 
> less commonly, elements) along the pipe.
> 
> Some results are reported once per cross section; e.g, the tension in the 
> pipe has a single value for the entire cross section. Other results, e.g. 
> plastic strain, is reported for a number of points along the circumference of 
> the pipe (say, 5-50 points), for each of the cross sections. The results can 
> be either “snapshots” or time series.
> 
> After what I’ve seen from the paraview documentation, possible approaches 
> include:
> 1. Create a paraview plugin to read our current in-house file format.
> 2. Directly write output files in an already supported format.
> 3. Write pvpython scripts that perform the conversion on the fly.
> 
> Approach 1 is probably a lot of work and the file format is not of interest 
> to anyone else (optimally, I’d like to replace it), so this seems less 
> attractive. Approach 3 is probably less user-friendly for our users.
> 
> The second approach seems sensible, but the paraview documentation does not 
> give many examples of how to do this. Optimally, I’d like to write a 
> hdf5-based format (xdmf? netcdf? raw hdf5?) directly from Fortran, but I 
> haven’t found documentation on how to do this. Using hdf5 seems attractive as 
> it’s so widely supported by e.g. matlab, python, and other postprocessing 
> tools used in the industry. Getting a single results database would simplify 
> a lot of workflows!
> 
> What would you guys do?
> 
> Cheers
> Paul
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