NAME

       specpack.c - Pack a spectral data field using the complex packing algorithm for spherical harmonic data.

SYNOPSIS

       #include 'grib2_int.h'
       #include <math.h>
       #include <stdio.h>
       #include <stdlib.h>

   Functions
       void specpack (float *fld, g2int ndpts, g2int JJ, g2int KK, g2int MM, g2int *idrstmpl, unsigned char
           *cpack, g2int *lcpack)
           Pack a spectral data field using the complex packing algorithm for spherical harmonic data as defined
           in the GRIB2 Data Representation Template 5.51.

Detailed Description

       Pack a spectral data field using the complex packing algorithm for spherical harmonic data.

       Author
           Stephen Gilbert

       Date
           2002-12-19

       Definition in file specpack.c.

Function Documentation

   void specpack (float * fld, g2int ndpts, g2int JJ, g2int KK, g2int MM, g2int * idrstmpl, unsigned char *
       cpack, g2int * lcpack)
       Pack a spectral data field using the complex packing algorithm for spherical harmonic data as defined in
       the GRIB2 Data Representation Template 5.51.

       Parameters
           fld Contains the data values to be packed.
           ndpts The number of data values to pack.
           JJ J - pentagonal resolution parameter.
           KK K - pentagonal resolution parameter.
           MM M - pentagonal resolution parameter.
           idrstmpl Contains the array of 10 values for [Data Representation Template
           5.51](https://www.nco.ncep.noaa.gov/pmb/docs/grib2/grib2_doc/grib2_temp5-51.shtml).
           cpack Pointer that gets the packed data field. Must be allocated by caller.
           lcpack length of packed field cpack.

       Author
           Stephen Gilbert

       Date
           2002-12-19

       Definition at line 33 of file specpack.c.

       References mkieee(), and simpack().

       Referenced by g2_addfield().

Author

       Generated automatically by Doxygen for NCEPLIBS-g2c from the source code.

NCEPLIBS-g2c                                      Version 2.1.0                                    specpack.c(3)