HDFView-3.4.99

The current HDFView products can be downloaded at:
https://github.com/HDFGroup/hdfview/releases

HDF Libraries

This release was built and tested with HDF 4.3.x and HDF5 1.16.x.

JDK

This release was built and tested with OpenJDK 21. It uses modules, the
newest jpackage for distribution and adds support for float16 datatypes.

Major Enhancements

* GH #117 Add User Option for editing the plugin path and include plugins.
* GH #138 Add Support for operating with float16 datatypes.

***** Previous fixes *****
* GH #121 Updated all icons with transparency.

Major Bug Fixes

*

***** Previous fixes *****
* GH #119 (crashes opening HDF4 file) has been fixed. The problem was
  that the HDF4 xdr.dll file was not copied from the hdf4 install location.

* HDFVIEW-284 (crashes on NETCDF-4 grids) has been fixed. The problem was
  that references in variable-length containers were handled like strings.
  Upon investigation, the problem found was that references in any container
  were handled like strings.
    The table display code for vlen references  also changed to account for
  the changes which fixed the hdf5 Java API. The fix required that
  variable-length types in the Java wrappers in the
  hdf5 library for read and write also be fixed.

  HDFView-221 Add support for true Variable-length types in Java
  Sub-issue HDFView-222 fixed the read/write support for variable-length
  in the Java wrappers. This fix involved handling the data object as
  a list of lists and using the datatype of the list.
  Sub-issue HDFView-222 fixed the object library to handle the List of Lists
  concept.
  Sub-issue HDFView-223 updated the DataProviders, DataDisplayConverters
  and DataValidators to work with variable-length List of Lists.

Minor Bug Fixes

* GH #159 (Help menu dialogs have gigantic images) Implemented by changing the size from 1024 to 256.
* GH #171 (HDFView fails to find input files on command line when using relative paths)

***** Previous fixes *****
* Corrected how the program updates changes to the fonts made in the User Preferences
  dialog. There are still issues with having to trigger a visual refresh.

* GH #73 (Check aarch64 in machine.arch property) fixed by adding a section to
  for aarch64.

* GH #147 (HDFView 3.3.0 shows incorrect references in compound types in datasets)
  fixed by adding a start index into the object reference array of data read from a
  compound type.

Limitations / Known Problems

* HDFView currently cannot nicely handle large datasets when using the
  default display mode, as the data is loaded in its entirety. To view
  large datasets, it is recommended to right click on a data object and
  use the "Open As" menu item, where a subset of data to view can be
  selected.

* HDFView also cannot nicely handle large numbers of objects, because of
  a design issue that requires HDFView to visit all the objects in a file.

* Object/region references can't be opened by a double-click or by
  right-clicking and choosing "Show As Table/Image" when inside a compound
  datatype.

* If a file is opened in read-only mode, right-clicking on a dataset in
  in the tree view and choosing any of the options under the
  "Export Dataset" menu item will fail with a message of
  'Unable to export dataset: Unable to open file'. The current workaround
  is to re-open the file in read/write mode.

* The 'Recent Files' button does not work on Mac due to a cross-platform
  issue with SWT.

* Selecting and changing individual points in PaletteView for an image
  palette is broken.

* Logging and optional HDF4 requires rebuilds from source.

* Automatically opening HDFView and displaying a file selected still does
  not display the file on a mac.

Other Notes