============================================
nagg version 1.1.0 released on April 9, 2012.
============================================

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 1.0.0
=================================================
    Configuration
    -------------
    - A bug that happened during build with icc compiler, has been fixed.
      (LRK 2012/2/25)
    
    Features
    --------
    - Implemented -S option, Simplified File, which directs nagg to put each
      product one file, that is, unpackaged format. The default is to produce
      in Packaged format which has all products packed into 1 file.
      (AKC 2012/04/09)
    - Implemented packaged input and output with one or more compatible sensor
      data products plus the GEO product.  (LRK 2012/04/09) 
    - Granules are added to the granule table only for requested products and
      from GEO files corresponding to files containing granules of requested
      products.  (LRK 2012/04/09)
    - Fill granules for a product will be created as long as the input files
      for an aggregation contain one real granule.  (LRK 2012/04/09)
    - The test script, testnagg.sh, is revamped to produce clear test results.
      (AKC 2012/04/03)
    - Implemented "-g no" option.  The no option directs nagg to aggregate or
      deaggregate product granules without finding Geolocation input granules
      and without writing any Geolocation output granules. (LRK 2012/03/07)
    - Added a new command option "-g" which controls the criterion for
      searching the Geolocation granules.  See command help page for details.
      "strict" and "yes" criterions are implemented. "no" will be implemented
      in the next version.  (AKC 2012/02/28)
    - Added the correct granule size (duration) for all products and expect
      to produce the same aggregations as DDS and CLASS, pending any revisions
      that may be made to the aggregation methodology. (AKC 2012/02/28) 

    Bug Fixes
    ---------
    - Changed default output format to Packaged format which packs all products
      in the same file. (AKC 2012/03/28).
    - JPSS-38 - Missing granules result in UNKNO geofiles.
    - JPSS-39 - Duplicate granules cause production of extra output files.
    - JPSS-40 - EndingDate value for fill granules is "N/A".

    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.
       * Grouping by time rather than number of granules (-A flag) is not
         supported (e.g., 7 minute 59 second granules starting at a given time
	 rather than just at the earliest granule encountered.)
       * 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
           -A - not supported
           -d - not suported

      
4. Known problems
=================
    Output file names generated do not have the product IDs appeared in sorted
    order. (AKC 2012/04/09).
    -d option is accepted but is not supported, that is, has no effect.
    (AKC 2012/3/29).