Datasets with datatype float16 cannot be displayed in HDFView

[nikolasborrel]

When writing datasets with datatype float16, HDFView 3.3.0 returns the error "data value is null."

Is there a solution for this?

[nikolasborrel]

I'm using HDFView on MacOS, in case.

[byrnHDF]

There should be a way to display a custom float datatype, we will need a testfile at the least. A "C" generate file program would be helpful.
Does h5dump display this correctly?

[sanssecours]

I think I have the same problem. As fars as I can tell the datatype does not matter. I uploaded an example file: 1695739243.hdf5.zip

Here is a screenshot of the data set acceleration of the example file in HDFView 3.2.0:

The same data in HDFView 3.3.1:

Does h5dump display this correctly?

Yep. The command:

h5dump -d acceleration measurement/1695739243.hdf5 | head -n 50

prints the following output on my machine:

HDF5 "measurement/1695739243.hdf5" {
DATASET "acceleration" {
   DATATYPE  H5T_COMPOUND {
      H5T_STD_U8LE "counter";
      H5T_STD_U64LE "timestamp";
      H5T_IEEE_F32LE "x";
   }
   DATASPACE  SIMPLE { ( 14736 ) / ( H5S_UNLIMITED ) }
   DATA {
   (0): {
         1,
         0,
         -0.587472
      },
   (1): {
         1,
         0,
         -0.563058
      },
   (2): {
         1,
         0,
         -0.572213
      },
   (3): {
         2,
         179,
         -0.529488
      },
   (4): {
         2,
         179,
         -0.560006
      },
   (5): {
         2,
         179,
         -0.596628
      },
   (6): {
         3,
         364,
         -0.541695
      },
   (7): {
         3,
         364,
         -0.53254
      },
   (8): {

[byrnHDF]

A simple compound should display! I will double-check but I don't see a reason right now. I will try that file, too. Are these problems on a mac only?

[byrnHDF]

I think this must be a mac specific issue. linux is fine.

[byrnHDF]

I would like to request more info on system, os version in particular.

[sanssecours]

I would like to request more info on system, os version in particular.

I use macOS, just like the original author of the issue.

I think this must be a mac specific issue. linux is fine.

That might be correct.

[byrnHDF]

Do you have a version number for the MacOS?

[sanssecours]

Do you have a version number for the MacOS?

macOS 13.6 (22G120)

[byrnHDF]

Thanks

[byrnHDF]

I also found that file failed on windows. Then I noticed that the dataset is compressed! And trying a non-compressed file of compounds works.
tcompound_complex2.zip

[byrnHDF]

AHHHH! The first build of 3.3.1on Sep 5 used incomplete HDF5 binaries (without compression). We released new 1.14.2 binaries and rebuilt HDFView on Sep 22. Please redownload the newer HDFView.

[sanssecours]

Looks like both the “Installer” and the “Application Image” for macOS from the offical download page are still outdated. Both versions show *ERROR* fields instead of the stored data. As far as I can tell from the modification/creation dates, the “Installer“ application was built on the 23th of August while the “Application Image” app was built a day later (24th of August).

For anyone else searching for the updated and working binaries, they are available here.

[byrnHDF]

Looks like we dropped the ball on updating the download site. The files should be there tomorrow (should happen soon)

[theGidy]

Please update your download links for windows on https://www.hdfgroup.org/downloads/hdfview/ as well, i had to use this link https://support.hdfgroup.org/ftp/HDF5/releases/HDF-JAVA/hdfview-3.3.1/bin/ to recive the new correct version.

[byrnHDF]

Releases from now on are available from github