HDF Newsletter 50

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CONTENTS

VisAD (from the University of Wisconsin-Madison) is a Java toolkit for constructing interactive and collaborative visualization and analysis of numerical data.

The VisAD HDF-5 Data Adapter consists of Java classes which call the NCSA Java HDF-5 Interface (JHI5), which calls the native HDF5 library. It follows the VisAD standard interface, so it can be used by any VisAD application.

For further details, see:

    http://hdf.ncsa.uiuc.edu/java-hdf5-html/VisAD_HDF5_DataAdapter/ 

JHI5 version 1.1 is a bug fix release. The changes in JHI5 1.1 are:

1. H5.H5Sselect_elements() -- The arguments were incorrectly passed from Java to C. This is fixed.

2. Object references and region references did not work correctly.
   • The class HDF5Reference was eliminated. All object references should be passed as Java byte[], length 8 (object reference) or 12 (region reference).

   • All H5R* interfaces changed to use byte[] instead of HDF5Reference.

   • Region references are implemented and work correctly.

3. The Unix Makefile built the class HDF5CDataTypes, but failed to include it in 'jhdf5.jar' when running 'make install'. This is fixed.

See the Java-HDF5 Home Page for futher details:

   http://hdf.ncsa.uiuc.edu/java-hdf5-html/

The pre-compiled binaries can now be downloaded from:

   ftp://ftp.ncsa.uiuc.edu/HDF/HDF5/current/bin/

   http://hdf.ncsa.uiuc.edu/HDF5/

   http://hdf.ncsa.uiuc.edu/newsletters/newsletter49.html