cmplxpack.c File Reference

Pack up a data field using a complex packing algorithm as defined in the GRIB2 documention. More...

#include "grib2_int.h"

Go to the source code of this file.

Functions
void	cmplxpack (float *fld, g2int ndpts, g2int idrsnum, g2int *idrstmpl, unsigned char *cpack, g2int *lcpack)
	This subroutine packs up a data field using a complex packing algorithm as defined in the GRIB2 documention. More...

Detailed Description

Pack up a data field using a complex packing algorithm as defined in the GRIB2 documention.

Author

Stephen Gilbert

Date

2004-08-27

Definition in file cmplxpack.c.

Function Documentation

cmplxpack()

void cmplxpack	(	float *	fld,
		g2int	ndpts,
		g2int	idrsnum,
		g2int *	idrstmpl,
		unsigned char *	cpack,
		g2int *	lcpack
	)

This subroutine packs up a data field using a complex packing algorithm as defined in the GRIB2 documention.

It supports GRIB2 complex packing templates with or without spatial differences (i.e. DRTs 5.2 and 5.3). It also fills in GRIB2 Data Representation Template 5.2 or 5.3 with the appropriate values.

Parameters

fld	Contains the data values to pack.
ndpts	The number of data values in array fld
idrsnum	Data Representation Template number. Must equal 2 or 3.
idrstmpl	Contains the array of values for Data Representation Template 5.2 or 5.3 0 Reference value - ignored on input, set by compack routine. 1 Binary Scale Factor 2 Decimal Scale Factor 6 Missing value management 7 Primary missing value 8 Secondary missing value 16 Order of Spatial Differencing ( 1 or 2 )
cpack	The packed data field.
lcpack	length of packed field cpack. Will be set to -1 if missing value management field is not 1 or 2.

Author

Stephen Gilbert

Date

2004-08-27

Definition at line 36 of file cmplxpack.c.

References compack(), and misspack().

Referenced by g2_addfield().