g2_unpack4.c3
Unpack section 4 (product definition section) of a grib2 message.
Usage
#include 'grib2_int.h'
#include <stdio.h>
#include <stdlib.h>
Functions
g2int g2_unpack4 (unsigned char *cgrib, g2int *iofst, g2int *ipdsnum, g2int **ipdstmpl, g2int *mappdslen, float **coordlist, g2int *numcoord)
Unpack Section 4 (Product Definition Section) of a GRIB2 message.
Detailed Description
Unpack Section 4 (Product Definition Section) of a GRIB2 message.
Author
Stephen Gilbert
Date
2002-10-31
Definition in file g2_unpack4.c.
Function Documentation
g2int g2_unpack4 (unsigned char * cgrib, g2int * iofst, g2int * ipdsnum, g2int ** ipdstmpl, g2int * mappdslen, float ** coordlist, g2int * numcoord)
Unpack Section 4 (Product Definition Section) of a GRIB2 message.
Program History Log
Date Programmer Comments 2002-10-31 Gilbert Initial 2009-01-14 Vuong Changed structure name template to gtemplate
Parameters
cgrib Array containing Section 4 of the GRIB2 message.
iofst Bit offset of the beginning of Section 4 in cgrib. Returned with updated bit offset.
ipdsnum Product Definition Template Number (see Table 4.0).
ipdstmpl Pointer that gets an integer array containing the data values for the Product Definition Template specified by ipdsnum.
mappdslen Number of elements in ipdstmpl - i.e. number of entries in Product Defintion Template specified by ipdsnum.
coordlist Pointer that gets an array containing floating point values intended to document the vertical discretisation associated to model data on hybrid coordinate vertical levels.
numcoord number of values in array coordlist.
Returns
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Author
Stephen Gilbert
Date
2002-10-31
Definition at line 45 of file g2_unpack4.c.
References gtemplate::ext, gtemplate::extlen, extpdstemplate(), G2_NO_ERROR, G2_UNPACK4_BAD_PDT, G2_UNPACK_BAD_SEC, G2_UNPACK_NO_MEM, gbit(), gbits(), getpdstemplate(), gtemplate::map, gtemplate::maplen, gtemplate::needext, and rdieee().
Referenced by g2_getfld().