Man page - getpoly(3)
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apt-get install libg2c-dev
Manual
getpoly.c
NAMESYNOPSIS
Functions
Detailed Description
Function Documentation
g2int getpoly (unsigned char * csec3, g2int * jj, g2int * kk, g2int * mm)
Author
NAME
getpoly.c - Return the J, K, and M pentagonal resolution parameters specified in a GRIB Grid Definition Section used spherical harmonic coefficients using GDT 5.50 through 5.53.
SYNOPSIS
#include
’grib2_int.h’
#include <stdio.h>
#include <stdlib.h>
Functions
g2int
getpoly
(unsigned char *csec3,
g2int
*jj,
g2int
*kk,
g2int
*mm)
This subroutine returns the J, K, and M pentagonal
resolution parameters specified in a GRIB Grid Definition
Section (GDS) used spherical harmonic coefficients using GDT
5.50 through 5.53.
Detailed Description
Return the J, K, and M pentagonal resolution parameters specified in a GRIB Grid Definition Section used spherical harmonic coefficients using GDT 5.50 through 5.53.
Author
Stephen Gilbert
Date
2002-12-11
Definition in file getpoly.c .
Function Documentation
g2int getpoly (unsigned char * csec3, g2int * jj, g2int * kk, g2int * mm)
This subroutine returns the J, K, and M pentagonal resolution parameters specified in a GRIB Grid Definition Section (GDS) used spherical harmonic coefficients using GDT 5.50 through 5.53. If 51 - complex data spectral packing is used as the data representation template number (see Table 5.0 ), then the Grid Definition Template Number in section 3 should be one of:
|
• |
50: Spherical Harmonic Coefficients (See Template 3.50) |
||
|
• |
51: Rotated Spherical Harmonic Coefficients (See Template 3.51) |
||
|
• |
52: Stretched Spherical Harmonic Coefficients (See Template 3.52) |
||
|
• |
53: Rotated and Stretched Spherical Harmonic Coefficients (See Template 3.53) |
Parameters
csec3
Character array
that contains the packed GRIB2 GDS.
jj
J pentagonal resolution parameter.
kk
K pentagonal resolution parameter.
mm
M pentagonal resolution parameter.
Returns
always returns 0.
Note
Returns jj, kk, and mm set to zero, if grid template not recognized.
Author
Stephen Gilbert
Date
2002-12-11
Definition at line 40 of file getpoly.c .
References g2_unpack3() .
Referenced by g2_addfield() .
Author
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