Perl Data Language Files

Release notes for PDL 2.4.6     --------------------------

General Notes:

 * Mainly a bugfix and polishing release


Highlights:

  * Improved 3D graphics and OpenGL functionality

  * imag2d() routine for multi-image (photo) display

  * Many fixes for Debian package release

  * Several little bugs fixed since PDL-2.4.5

  * Fixed some issues with PDL convolution routines

  * Improved documentation and release notes and files

  * Padre and enhanced perldl shell integration begun


Summary of Changes:

  * Improved 3D graphics and OpenGL functionality

    Perl OpenGL 0.62 is the minimum required version
    for PDL::Graphics::TriD to build.

    TriD now builds correctly for Mac OS X systems
    without X11 installed.

    Autoprobe for build of 3D graphics and the use
    of the Perl OpenGL library has been implemented.
    The default perldl.conf setting is to check.

    Improved multi-window support for PDL::Graphics::TriD
    display windows: the GLUT window ID is now part of
    the default window title for convenience, and redraws
    with multiple open TriD windows are handled correctly.
    
  * imag2d() routine for multi-image (photo) display

    REQUIRES: The Perl OpenGL TriD interface and FreeGLUT.

    IMPORTANT: Legacy X11 TriD is *not* supported!

    It is implemented in the imag2d.pdl file for autoloading
    via PDL::AutoLoader.  To use, copy the imag2d.pdl file
    to somewhere in your PDLLIB path or add the location to
    your PDLLIB environment variable.

    It works with multiple, simultaneous, image windows
    and appears to work side-by-side with TriD graphics
    windows.
    
    After you have imag2d.pdl in your @PDLLIB list,
    you can use 'help imag2d' to get usage instructions
    and documentation.
    
    This implements the basic functionality planned regarding
    an improved imagrgb() routine.

  * Many fixes for Debian package release

    This should allow PDL-2.4.6 to be more readily released
    as a Debian packages.  The general clean up involved
    improves PDL portability and robustness generally.

  * Several little bugs fixed since PDL-2.4.5

    The number of history lines when you use Term::ReadLine::Perl
    with perldl are now set correctly to $PERLDL::HISTFILESIZE.
    The default value is 500.

    A number of minor internal fixes for portability and
    implementation improvements:

     - Add comment re fix for defined(%hash) usage
     - Fix annoying PGPLOT::HANDLE warning message
     - Replace GIMME by GIMME_V in Core.xs
     - Update to v3.14 of ppport.h portability

    Fixed MINUIT build problem where non-standard code was
    being generated which caused problems with rigorous compiler
    settings.  This was SF bug #2524068.

  * Fixed a number of issues with PDL convolution routines

    conv1d() algorithm adjusted to match conv2D() and convolutionND().
    Documentation on the exact computation being performed in conv1d()
    was added.

    Fixes bug #2630369 with fftconvolve().  It now gives the same results
    as conv1d(), conv2d(),.., except perhaps with respect to the boundary
    condition handling.

  * Improved documentation and release notes and files

    Updated PDL::FAQ.

    Lots of little changes to bring documentation in line
    with current PDL functionality.  Volunteer editors and
    contributors always welcome!

  * Padre and enhanced perldl shell integration begun

    There is a new PDL-2.4.6/Padre/ subdirectory in the PDL
    source tree which contains work towards Padre integration
    and a 2nd generation, enhanced perldl shell for PDL.

    E.g. an *experimental* plug-in giving PDL::NiceSlice support
    to the Devel::REPL shell is included.  See the Padre/README
    file for instructions to get you started.


See the distribution Release_Notes and Changes files for more detail.