gf_unpack7.f File Reference

Contains subroutines unpacks Section 7 (Data Section). More...

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Functions/Subroutines
subroutine	gf_unpack7 (cgrib, lcgrib, iofst, igdsnum, igdstmpl, idrsnum, idrstmpl, ndpts, fld, ierr)
	This subroutine unpacks Section 7 (Data Section). More...

Detailed Description

Contains subroutines unpacks Section 7 (Data Section).

Author

Stephen Gilbert

Date

2002-01-24

Definition in file gf_unpack7.f.

Function/Subroutine Documentation

gf_unpack7()

subroutine gf_unpack7	(	character(len=1), dimension(lcgrib), intent(in)	cgrib,
		integer, intent(in)	lcgrib,
		integer, intent(inout)	iofst,
		integer, intent(in)	igdsnum,
		integer, dimension(:), pointer	igdstmpl,
		integer, intent(in)	idrsnum,
		integer, dimension(:), pointer	idrstmpl,
		integer, intent(in)	ndpts,
		real, dimension(:), pointer	fld,
		integer, intent(out)	ierr
	)

This subroutine unpacks Section 7 (Data Section).

PROGRAM HISTORY LOG:

• 2000-05-26 Stephen Gilbert Initial development.
• 2002-12-17 Stephen Gilbert Added support for new templates using. PNG and JPEG2000 algorithms/templates.
• 2002-12-29 Stephen Gilbert Added check on comunpack return code.

Parameters

[in]	cgrib	Character array that contains the GRIB2 message.
[in]	lcgrib	Length (in bytes) of GRIB message array cgrib.
[in,out]	iofst	Bit offset of the beginning/end(returned) of Section 7.
[in]	igdsnum	Grid Definition Template Number (Code Table 3.0) (Only required to unpack DRT 5.51).
[in]	igdstmpl	Pointer to an integer array containing the data values for the specified Grid Definition. Template (N=igdsnum). Each element of this integer array contains an entry (in the order specified) of Grid Definition Template 3.N (Only required to unpack DRT 5.51).
[in]	ndpts	Number of data points unpacked and returned.
[in]	idrsnum	Data Representation Template Number (Code Table 5.0).
[in]	idrstmpl	Pointer to an integer array containing the data values for the specified Data Representation Template (N=idrsnum). Each element of this integer array contains an entry (in the order specified) of Product Defintion Template 5.N A safe dimension for this array can be obtained in advance from maxvals(6), which is returned from subroutine gribinfo.
[in]	ndpts	Number of data points unpacked and returned.
[out]	fld	Pointer to a real array containing the unpacked data field.
[out]	ierr	Error return code. 0 no error. 4 Unrecognized Data Representation Template. 5 One of GDT 3.50 through 3.53 required to unpack DRT 5.51. 6 memory allocation error. 7 corrupt section 7.

Author

Stephen Gilbert

Date

2002-01-24

Definition at line 44 of file gf_unpack7.f.