On 9 April 2017 at 15:41, <[email protected]> wrote:

> I am a novice with .H5 files, but I have pulled out a few files from my
> system at work and am trying to view them. First I tried in ArcGIS since
> the format is now supported, but I received a very vague error that the
> raster was invalid. Now I downloaded HDFView and I am getting this error:
>
>
>
> I've attached one of the files I am trying to view/open so someone with
> more experience can take a look and hopefully enlighten me with what is
> wrong.
>


I see the same error (macOS El Capitan,  HDFview 2.13) when I click on a
Data object.  Panoply gives "There was an error preparing the data: Unknown
filter type=32000".
See: https://support.hdfgroup.org/services/filters.html, where you will see:



 
-----------------------------------------------------------------------------------------------------------------------------------------------------
LZF Filter

*Filter ID:* 32000

*Filter Description:*

The LZF filter is an alternative DEFLATE-style compressor for HDF5
datasets, using the free LZF library by Marc Alexander Lehmann. Its main
benefit over the built-in HDF5 DEFLATE filter is speed; in memory-to-memory
operation as part of the filter pipeline, it typically compresses 3x-5x
faster than DEFLATE, and decompresses 2x faster, while maintaining 50% to
90% of the DEFLATE compression ratio.

LZF can be used to compress any data type, and requires no compile-time or
run-time configuration. HDF5 versions 1.6.5 through 1.8.3 are supported.
The filter is written in C and can be included directly in C or C++
applications; it has no external dependencies. The license is 3-clause BSD
(virtually unrestricted, including commercial applications).

More information, downloads, and benchmarks, are available at the
http://h5py.org/lzf/.

*Additional Information:*

The LZF filter was developed as part of the h5py project, which implements
a general-purpose interface to HDF5 from Python.

*Links:*

The h5py homepage: http://h5py.org
The LZF library homepage: http://home.schmorp.de/marc/liblzf.html

*Contact Information:*

Andrew Collette
Web: http://h5py.org

 
------------------------------------------------------------------------------------------------------------------------------------------------------


Since ArcGIS uses python, you might be able to install the lzf filter where
ArcGIS can use it.

You may want to read
https://support.hdfgroup.org/HDF5/doc/TechNotes/TechNote-HDF5-CompressionTroubleshooting.pdf



>
> Thanks in advance!
>
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>



-- 
George N. White III <[email protected]>
Head of St. Margarets Bay, Nova Scotia
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