NAME

       pdstemplates.h - This inculde file contains info on all the available GRIB2 Product
       Definition Templates used in Section 4 (PDS).

SYNOPSIS

       #include 'grib2.h'

   Data Structures
       struct pdstemplate
           Struct for PDS template.

   Macros
       #define MAXPDSMAPLEN   200
           maximum template map length
       #define MAXPDSTEMP   47
           maximum number of templates

   Variables
       const struct pdstemplate templatespds [MAXPDSTEMP]
           Date for struct for PDS template.

Detailed Description

       This inculde file contains info on all the available GRIB2 Product Definition Templates
       used in Section 4 (PDS).

       The information decribing each template is stored in the pdstemplate structure defined
       below.

       Each Template has three parts: The number of entries in the template (mappdslen); A map of
       the template (mappds), which contains the number of octets in which to pack each of the
       template values; and a logical value (needext) that indicates whether the Template needs
       to be extended. In some cases the number of entries in a template can vary depending upon
       values specified in the 'static' part of the template. ( See Template 4.3 as an example )

       Note
           Array mappds contains the number of octets in which the corresponding template values
           will be stored. A negative value in mappds is used to indicate that the corresponding
           template entry can contain negative values. This information is used later when
           packing (or unpacking) the template data values. Negative data values in GRIB are
           stored with the left most bit set to one, and a negative number of octets value in
           mappds[] indicates that this possibility should be considered. The number of octets
           used to store the data value in this case would be the absolute value of the negative
           value in mappds[].

       PROGRAM HISTORY LOG:

       • 2005-12-08 Gilbert Allow negative scale factors and limits for Templates 4.5 and 4.9

       • 2009-12-15 Vuong Added Product Definition Template 4.31 Added Product Definition
         Template 4.15

       • 2010-08-03 Vuong Added Product Definition Template 4.40,4.41,4.42,4.43

       • 2010-12-08 Vuong Corrected Definition Template 4.42,4.43

       • 2010-12-08 Vuong Corrected Definition Template 4.42,4.43

       • 2012-03-29 Vuong Added Templates 4.44,4.45,4.46,4.47,4.48,4.50, 4.51,4.91,4.32 and 4.52

       • 2013-08-05 Vuong Corrected 4.91 and added Templates 4.33,4.34,4.53,4.54

       • 2015-10-07 Vuong Added Templates 4.57, 4.60, 4.61 and allow a forecast time to be
         negative

       Author
           Stephen Gilbert

       Date
           2005-12-08

       Definition in file pdstemplates.h.

Data Type Documentation

struct pdstemplate

       Struct for PDS template.

       Definition at line 55 of file pdstemplates.h.

       Data Fields:
           g2int mappds[MAXPDSMAPLEN]

           g2int mappdslen

           g2int needext

           g2int template_num

Macro Definition Documentation

   #define MAXPDSMAPLEN   200
       maximum template map length

       Definition at line 50 of file pdstemplates.h.

   #define MAXPDSTEMP   47
       maximum number of templates

       Definition at line 49 of file pdstemplates.h.

Variable Documentation

   const struct pdstemplate templatespds[MAXPDSTEMP]
       Date for struct for PDS template.

       Definition at line 1 of file pdstemplates.h.

       Referenced by getpdsindex(), and getpdstemplate().

Author

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