.TH "pdstemplates.h" 3 "Tue May 3 2022" "Version 1.6.4" "NCEPLIBS-g2c" \" -*- nroff -*-
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.SH NAME
pdstemplates.h \- This inculde file contains info on all the available GRIB2 Product Definition Templates used in Section 4 (PDS)\&.  

.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 \fBpdstemplate\fP"
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.RI "Struct for PDS template\&. "
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.SS "Macros"

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.RI "#define \fBMAXPDSMAPLEN\fP   200"
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.RI "maximum template map length "
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.RI "#define \fBMAXPDSTEMP\fP   47"
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.RI "maximum number of templates "
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.SS "Variables"

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.RI "const struct \fBpdstemplate\fP \fBtemplatespds\fP [\fBMAXPDSTEMP\fP]"
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.RI "Date for struct for PDS template\&. "
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.SH "Detailed Description"
.PP 
This inculde file contains info on all the available GRIB2 Product Definition Templates used in Section 4 (PDS)\&. 

The information decribing each template is stored in the pdstemplate structure defined below\&.
.PP
Each Template has three parts: The number of entries in the template (mappdslen); A map of the template (mappds), 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 4\&.3 as an example )
.PP
\fBNote\fP
.RS 4
Array mappds contains the number of octets in which the corresponding template values will be stored\&. A negative value in mappds 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 mappds[] 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 mappds[]\&.
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PROGRAM HISTORY LOG:
.IP "\(bu" 2
2005-12-08 Gilbert Allow negative scale factors and limits for Templates 4\&.5 and 4\&.9
.IP "\(bu" 2
2009-12-15 Vuong Added Product Definition Template 4\&.31 Added Product Definition Template 4\&.15
.IP "\(bu" 2
2010-08-03 Vuong Added Product Definition Template 4\&.40,4\&.41,4\&.42,4\&.43
.IP "\(bu" 2
2010-12-08 Vuong Corrected Definition Template 4\&.42,4\&.43
.IP "\(bu" 2
2010-12-08 Vuong Corrected Definition Template 4\&.42,4\&.43
.IP "\(bu" 2
2012-03-29 Vuong Added Templates 4\&.44,4\&.45,4\&.46,4\&.47,4\&.48,4\&.50, 4\&.51,4\&.91,4\&.32 and 4\&.52
.IP "\(bu" 2
2013-08-05 Vuong Corrected 4\&.91 and added Templates 4\&.33,4\&.34,4\&.53,4\&.54
.IP "\(bu" 2
2015-10-07 Vuong Added Templates 4\&.57, 4\&.60, 4\&.61 and allow a forecast time to be negative
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.PP
\fBAuthor\fP
.RS 4
Stephen Gilbert 
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\fBDate\fP
.RS 4
2005-12-08 
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.PP

.PP
Definition in file \fBpdstemplates\&.h\fP\&.
.SH "Data Type Documentation"
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.SH "struct pdstemplate"
.PP 
Struct for PDS template\&. 
.PP
Definition at line 55 of file pdstemplates\&.h\&.
.PP
\fBData Fields:\fP
.RS 4
\fBg2int\fP \fImappds[\fBMAXPDSMAPLEN\fP]\fP 
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\fBg2int\fP \fImappdslen\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 MAXPDSMAPLEN   200"

.PP
maximum template map length 
.PP
Definition at line 50 of file pdstemplates\&.h\&.
.SS "#define MAXPDSTEMP   47"

.PP
maximum number of templates 
.PP
Definition at line 49 of file pdstemplates\&.h\&.
.SH "Variable Documentation"
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.SS "const struct \fBpdstemplate\fP templatespds[\fBMAXPDSTEMP\fP]"

.PP
Date for struct for PDS template\&. 
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Definition at line 1 of file pdstemplates\&.h\&.
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Referenced by getpdsindex(), and getpdstemplate()\&.
.SH "Author"
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Generated automatically by Doxygen for NCEPLIBS-g2c from the source code\&.