.TH "simpack.c" 3 "Tue May 3 2022" "Version 1.6.4" "NCEPLIBS-g2c" \" -*- nroff -*-
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.SH NAME
simpack.c \- Pack up a data field using the simple packing algorithm\&.  

.SH SYNOPSIS
.br
.PP
\fC#include <stdlib\&.h>\fP
.br
\fC#include <math\&.h>\fP
.br
\fC#include 'grib2\&.h'\fP
.br

.SS "Functions"

.in +1c
.ti -1c
.RI "void \fBsimpack\fP (\fBg2float\fP *fld, \fBg2int\fP ndpts, \fBg2int\fP *idrstmpl, unsigned char *cpack, \fBg2int\fP *lcpack)"
.br
.RI "This subroutine packs up a data field using the simple packing algorithm as defined in the GRIB2 documention\&. "
.in -1c
.SH "Detailed Description"
.PP 
Pack up a data field using the simple packing algorithm\&. 


.PP
\fBAuthor\fP
.RS 4
Stephen Gilbert 
.RE
.PP
\fBDate\fP
.RS 4
2002-11-06 
.RE
.PP

.PP
Definition in file \fBsimpack\&.c\fP\&.
.SH "Function Documentation"
.PP 
.SS "void simpack (\fBg2float\fP * fld, \fBg2int\fP ndpts, \fBg2int\fP * idrstmpl, unsigned char * cpack, \fBg2int\fP * lcpack)"

.PP
This subroutine packs up a data field using the simple packing algorithm as defined in the GRIB2 documention\&. It also fills in GRIB2 Data Representation Template 5\&.0 with the appropriate values\&.
.PP
\fBParameters\fP
.RS 4
\fIfld\fP Contains the data values to pack\&. 
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\fIndpts\fP The number of data values in array fld\&. 
.br
\fIidrstmpl\fP Contains the array of values for Data Representation Template 5\&.0\&.
.IP "\(bu" 2
0 Reference value - ignored on input - set by simpack routine\&.
.IP "\(bu" 2
1 Binary Scale Factor - unchanged from input\&.
.IP "\(bu" 2
2 Decimal Scale Factor - unchanged from input\&.
.IP "\(bu" 2
3 Number of bits used to pack data, if value is > 0 and <= 31\&. If this input value is 0 or outside above range then the num of bits is calculated based on given data and scale factors\&.
.IP "\(bu" 2
4 Original field type - currently ignored on input\&. Data values assumed to be reals\&. Set to 0 by simpack routine\&. 
.PP
.br
\fIcpack\fP The packed data field 
.br
\fIlcpack\fP length of packed field starting at cpack\&.
.RE
.PP
\fBAuthor\fP
.RS 4
Stephen Gilbert 
.RE
.PP
\fBDate\fP
.RS 4
2002-11-06 
.RE
.PP

.PP
Definition at line 32 of file simpack\&.c\&.
.PP
References int_power(), mkieee(), sbit(), and sbits()\&.
.PP
Referenced by g2_addfield(), and specpack()\&.
.SH "Author"
.PP 
Generated automatically by Doxygen for NCEPLIBS-g2c from the source code\&.