.TH "drstemplates.h" 3 "Tue May 3 2022" "Version 1.6.4" "NCEPLIBS-g2c" \" -*- nroff -*-
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.SH NAME
drstemplates.h \- This C struct contains info on all the available GRIB2 Data Representation Templates used in Section 5 (DRS)\&.  

.SH SYNOPSIS
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.PP
\fC#include 'grib2\&.h'\fP
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.SS "Data Structures"

.in +1c
.ti -1c
.RI "struct \fBdrstemplate\fP"
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.RI "Stuct for GRIB2 Data Representation Section (DRS) template\&. "
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.SS "Macros"

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.ti -1c
.RI "#define \fBMAXDRSMAPLEN\fP   200"
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.RI "maximum template map length "
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.RI "#define \fBMAXDRSTEMP\fP   9"
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.RI "maximum number of templates "
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.SS "Variables"

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.RI "const struct \fBdrstemplate\fP \fBtemplatesdrs\fP [\fBMAXDRSTEMP\fP]"
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.RI "Stuct holding data for GRIB2 Data Representation Section (DRS) template\&. "
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.SH "Detailed Description"
.PP 
This C struct contains info on all the available GRIB2 Data Representation Templates used in Section 5 (DRS)\&. 

The information decribing each template is stored in the drstemplate structure defined below\&.
.PP
Each Template has three parts: The number of entries in the template (mapdrslen); A map of the template (mapdrs), 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 5\&.1 as an example\&.)
.PP
\fBNote\fP
.RS 4
Array mapdrs contains the number of octets in which the corresponding template values will be stored\&. A negative value in mapdrs 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 mapdrs 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 mapdrs\&.
.RE
.PP
\fBAuthor\fP
.RS 4
Stephen Gilbeert 
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\fBDate\fP
.RS 4
2002-10-26 
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.PP

.PP
Definition in file \fBdrstemplates\&.h\fP\&.
.SH "Data Type Documentation"
.PP 
.SH "struct drstemplate"
.PP 
Stuct for GRIB2 Data Representation Section (DRS) template\&. 
.PP
Definition at line 39 of file drstemplates\&.h\&.
.PP
\fBData Fields:\fP
.RS 4
\fBg2int\fP \fImapdrs[\fBMAXDRSMAPLEN\fP]\fP A map of the template\&. 
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.PP
\fBg2int\fP \fImapdrslen\fP Length of map of the template\&. 
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\fBg2int\fP \fIneedext\fP Whether the Template needs to be extended\&. 
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.PP
\fBg2int\fP \fItemplate_num\fP The number of entries in the template\&. 
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.PP
.RE
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.SH "Macro Definition Documentation"
.PP 
.SS "#define MAXDRSMAPLEN   200"

.PP
maximum template map length 
.PP
Definition at line 34 of file drstemplates\&.h\&.
.SS "#define MAXDRSTEMP   9"

.PP
maximum number of templates 
.PP
Definition at line 33 of file drstemplates\&.h\&.
.SH "Variable Documentation"
.PP 
.SS "const struct \fBdrstemplate\fP templatesdrs[\fBMAXDRSTEMP\fP]"
\fBInitial value:\fP
.PP
.nf
= {
    
    { 0, 5, 0, {4,-2,-2,1,1} },
    
    { 2, 16, 0, {4,-2,-2,1,1,1,1,4,4,4,1,1,4,1,4,1} },
    
    { 3, 18, 0, {4,-2,-2,1,1,1,1,4,4,4,1,1,4,1,4,1,1,1} },
    
    { 50, 5, 0, {4,-2,-2,1,4} },
    
    { 51, 10, 0, {4,-2,-2,1,-4,2,2,2,4,1} },


    
    { 40, 7, 0, {4,-2,-2,1,1,1,1} },
    
    { 41, 5, 0, {4,-2,-2,1,1} },
    
    { 40000, 7, 0, {4,-2,-2,1,1,1,1} },
    
    { 40010, 5, 0, {4,-2,-2,1,1} }
}
.fi
.PP
Stuct holding data for GRIB2 Data Representation Section (DRS) template\&. 
.PP
Definition at line 1 of file drstemplates\&.h\&.
.PP
Referenced by getdrsindex(), and getdrstemplate()\&.
.SH "Author"
.PP 
Generated automatically by Doxygen for NCEPLIBS-g2c from the source code\&.