============================================
Nagg version 1.3.1-pre1 currently under development.
============================================

1. Introduction
===============

This document describes the NPP Aggregation tool, nagg, and contains
information on platforms tested, changes since last release and any known
problems.

If you have any questions or comments, please send them to:
    help@hdfgroup.org


2. Platforms Tested
===================
Linux 2.6 32bit and 64bits with gcc 4.1.2 and icc 12.0.4


3. New features and bug fixes since Version 1.2.0
=================================================
    Configuration
    -------------
    - None
    
    Features
    --------
    - Added support for nagg -V or --version. (LK 2012/08/01)
    - Added -A aggregation time option. (AKC 2012/07/13)
    - Added support for the output directory, -d, option. (AKC 2012/07/09)
      
    Bug Fixes
    ---------
    - The NPP product table had an incorrect granule duration for IICMO, nagg
      -h or --help printed incorrect granule durations for some of the GEO
      products, and 2 of the NPP products had incorrect GEO products listed.
      These errors have been corrected in this version. (LK 2012/08/01)
    - If the output directory (-d dir) does not exist, Nagg will issue error
      message during command option parsing and exit without attempting to
      create the output files in the non-existing directory.
      (JPSS-60) (AKC 2012/07/29)
    - Output file names now have the product IDs, including Geolocation
      product ID if given, in sorted order as defined by the Control Book.
      (JPSS-59) (AKC 2012/07/28)

    Limits
    ------
    - See nagg.docx (html, pdf) in the same directory for proposed functionality.
    Current release has the following limitations: 
       * Environment variables or command line options for compliance 
         with file naming convention presume valid types and packaging as
	 defined in the "nagg.h" file.
       * Warnings or failures if granule gaps exceed some threshold are not
         supported.
       * Compression on output is not supported.
       * Options to choose repair granule are not supported; for now, the one
         with the latest version is used.
       * Option to replace existing granule with repair granule is not
         supported.  
       * Restrictions on flags and input parameters:
            Directory input is not supported.
           -l - not supported

      
4. Known problems
=================
    None