.TH "gridtemplates.h" 3 "Tue May 3 2022" "Version 1.6.4" "NCEPLIBS-g2c" \" -*- nroff -*-
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.SH NAME
gridtemplates.h
.SH SYNOPSIS
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.PP
\fC#include 'grib2\&.h'\fP
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.SS "Data Structures"

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.RI "struct \fBgridtemplate\fP"
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.RI "Struct for grid template\&. "
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.SS "Macros"

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.RI "#define \fBMAXGRIDMAPLEN\fP   200"
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.RI "maximum template map length "
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.RI "#define \fBMAXGRIDTEMP\fP   31"
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.RI "maximum number of templates "
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.SS "Variables"

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.RI "const struct \fBgridtemplate\fP \fBtemplatesgrid\fP [\fBMAXGRIDTEMP\fP]"
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.RI "Templates grid\&. "
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.SH "Detailed Description"
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\fBAuthor\fP
.RS 4
Stephen Gilbert 
.RE
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\fBDate\fP
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2001-10-26
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This Fortran Module contains info on all the available GRIB2 Grid Definition Templates used in Section 3 (GDS)\&. The information decribing each template is stored in the gridtemplate structure defined below\&.
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Each Template has three parts: The number of entries in the template (mapgridlen); A map of the template (mapgrid), which contains the number of octets in which to pack each of the template values; and a logical value (needext) that indicates whether the Template needs to be extended\&. In some cases the number of entries in a template can vary depending upon values specified in the 'static' part of the template\&. ( See Template 3\&.120 as an example )
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NOTE: Array mapgrid contains the number of octets in which the corresponding template values will be stored\&. A negative value in mapgrid is used to indicate that the corresponding template entry can contain negative values\&. This information is used later when packing (or unpacking) the template data values\&. Negative data values in GRIB are stored with the left most bit set to one, and a negative number of octets value in mapgrid[] indicates that this possibility should be considered\&. The number of octets used to store the data value in this case would be the absolute value of the negative value in mapgrid[]\&.
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PROGRAM HISTORY LOG:
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-2001-10-26 Gilbert -2007-08-16 Vuong - Added GDT 3\&.204 Curvilinear Orthogonal Grid -2008-07-08 Vuong - Added GDT 3\&.32768 Rot Lat/Lon E-grid (Arakawa) -2010-05-11 Vuong - Added GDT 3\&.32769 Rotate Lat/Lon Non-E Staggered grid (Arakawa) -2013-08-06 Vuong - Added GDT 3\&.4,3\&.5,3\&.12,3\&.101,3\&.140 
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Definition in file \fBgridtemplates\&.h\fP\&.
.SH "Data Type Documentation"
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.SH "struct gridtemplate"
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Struct for grid template\&. 
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Definition at line 47 of file gridtemplates\&.h\&.
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\fBData Fields:\fP
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\fBg2int\fP \fImapgrid[\fBMAXGRIDMAPLEN\fP]\fP 
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\fBg2int\fP \fImapgridlen\fP 
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\fBg2int\fP \fIneedext\fP 
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\fBg2int\fP \fItemplate_num\fP 
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.RE
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.SH "Macro Definition Documentation"
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.SS "#define MAXGRIDMAPLEN   200"

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maximum template map length 
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Definition at line 42 of file gridtemplates\&.h\&.
.SS "#define MAXGRIDTEMP   31"

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maximum number of templates 
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Definition at line 41 of file gridtemplates\&.h\&.
.SH "Variable Documentation"
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.SS "const struct \fBgridtemplate\fP templatesgrid[\fBMAXGRIDTEMP\fP]"

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Templates grid\&. 
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Definition at line 1 of file gridtemplates\&.h\&.
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Referenced by getgridindex(), and getgridtemplate()\&.
.SH "Author"
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Generated automatically by Doxygen for NCEPLIBS-g2c from the source code\&.