[Nexus] how to read files from Eiger?

[Herbert J. Bernstein]

Dear Eugen,

  The latest releases of the detector firmware support bitshuffle (as
bslz4) which seems likely to eventually replace most uses of lz4 without
bitshuffle, but right now there are a lot of pure lz4 images around.  The
safest and simplest thing to do is to install both the bitsuffle and lz4
filters.Then you can read any of the Eiger images from the filewriter
interface.

  Regards,
    Herbert

On Fri, Jun 24, 2016 at 4:05 AM, Eugen Wintersberger <
eugen.wintersberger at desy.de> wrote:

> Hi Pete,
>
> On which Linux systems do you want to read the files. For Ubuntu 14.04 and
> Debian 8  we have packages available.
> On 06/23/16 19:27, Pete Jemian wrote:
>
> Very helpful.  Thanks for the quick turnaround.
> Now I go off in a corner with an internet connection for quiet time ...
>
> On 6/23/2016 12:25 PM, Herbert J. Bernstein wrote:
>
> Dear Pete,
>
>   This is a solvable problem, but requires some preliminary software
> installations.  First, be sure your HDF5 kit is reasonably recent and has
> filter plugin support.  Then pickup and install both the LZ4 and BitShuffle
> filters.  Now make sure HDF5_PLUGIN_PATH is defined to point to the
> directory containing the filter libraries.  Then h5dump should be able to
> handle the Eiger files.
>
> For the current files BittShuffle is not required. Most probably required
> for latter releases of the detector?
>
> regards
>    Eugen
>
>
>   Eugen is gathering the filters on github.  I am gathering other software
> and links to test data and templates at HDRMX.medsbio.org.  There is a
> link for the hdrmx-bb list on the page.   Please post comments, questions
> and suggestions there.
>
>   Regards,
>     Herbert
>
> Sent from my iPad
>
> On Jun 23, 2016, at 12:48, Pete Jemian <prjemian at gmail.com>
> <prjemian at gmail.com> wrote:
>
>
> We have received a linked fileset from an Eiger 1M Anderson  want to read
> it.
> Cannot seem to progress past knowing that there is data.
> Here is an excerpt from h5dump (version 1.8.16):
>
>        DATASET "data" {
>           DATATYPE  H5T_STD_U32LE
>           DATASPACE  SIMPLE { ( 1, 1065, 1030 ) / ( H5S_UNLIMITED, 1065,
> 1030 ) }
>           DATA {h5dump error: unable to print data
>
>           }
>           ATTRIBUTE "image_nr_high" {
>              DATATYPE  H5T_STD_I32LE
>              DATASPACE  SCALAR
>              DATA {
>              (0): 1
>              }
>           }
>           ATTRIBUTE "image_nr_low" {
>              DATATYPE  H5T_STD_I32LE
>              DATASPACE  SCALAR
>              DATA {
>              (0): 1
>              }
>           }
>        }
>
> It's the error: "h5dump error: unable to print data"
>
> Is this the case where we have the wrong version of the HDF5 libraries?
> Is there a tool to render such files compatible with the 1.8 libraries?
> If so, where is that tool?
>
> Pete
>
> _______________________________________________
> NeXus mailing list
> NeXus at nexusformat.org
> http://lists.nexusformat.org/mailman/listinfo/nexus
>
>
>
> --
> Dr. Eugen Wintersberger
>
> FS-EC
> DESY
> Notkestr. 85
> D-22607 Hamburg
> Germany
>
> E-Mail: eugen.wintersberger at desy.de
> Telefon: +49-40-8998-1917
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.nexusformat.org/pipermail/nexus/attachments/20160624/98a464b7/attachment.html>