bugGNU Octave - Bugs: bug #64191, Octave can't read compound data...


bug #64191: Octave can't read compound data type from hdf5 file using load command

Submitter:  Nicklas SB Karlsson <karlnick>
Submitted:  Sun 14 May 2023 05:35:49 PM UTC
Category:  Octave Function Severity:  3 - Normal
Priority:  5 - Normal Item Group:  Feature Request
Status:  None Assigned to:  None
Originator Name:  Nicklas SB Karlsson Open/Closed:  * Open
Release:  * 6.2.0 Operating System:  * GNU/Linux
Fixed Release:  None Planned Release:  None
* Mandatory Fields

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Mon 15 May 2023 10:49:21 AM UTC, comment #1: 

Octave currently doesn't handle hdf5 files that are not formatted according to its own binary format.

I am in the process of writing a package to handle reading and writing hdf5 files from Octave. This is clearly WIP but, e.g. compound data types are already handled.

I attached an archive of the package which you can install using

pkg install oct-hdf5.tar.gz

Then you can load compound data using the low level interface, e.g.

example_file = file_in_loadpath ("base_types_mat73.mat");
file_id = H5F.open (example_file);
dataset_id = H5D.open (file_id, "cplx_scalar_single", "H5P_DEFAULT");
data = H5D.read (dataset_id);
H5D.close (dataset_id);
H5F.close (file_id)

As in Matlab, for compound data types, data are returned as a struct with fields corresponding to type element names.

You are very welcome to provide help in the implementation of the package.

(file #54742)

Pantxo Diribarne <pantxo>
Group Member
Sun 14 May 2023 05:35:49 PM UTC, original submission:  

Have time to help with the implementation if needed. Or maybe even have time implement myself and do a pull request.

Nicklas SB Karlsson <karlnick>


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Attach Files:

Attached Files
file #54742:  oct-hdf5.tar.gz added by pantxo (380KiB - application/gzip)


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    Follows 1 latest change.

    Date Changed by Updated Field Previous Value => Replaced by
    2023-05-15 pantxo Attached File- Added oct-hdf5.tar.gz, #54742

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