.\" man page by Jim Van Zandt <jrv@vanzandt.mv.com>         -*- nroff -*-
.TH HDFCOMP 1 "November 6, 1999"
.SH NAME
.ad l
.nh
hdfcomp \- compress 8-bit raster images in an HDF file
.SH SYNOPSIS
.HP
\fBhdfcomp\fP
\fIoutput-filename\fP
[\fB-c\fP|\fB-r\fP|\fB-i\fP] \fIinput-filename-1\fP
[\fB-c\fP|\fB-r\fP|\fB-i\fP] \fIinput-filename-2\fP...
.ad b
.hy
.SH DESCRIPTION
\fBhdfcomp\fP reads RIS8 images from a set of HDF files, compresses
them and stores the compressed data in a second HDF file.  If the
output HDF file exists, the compressed images will be appended to it.
.SH OPTIONS
.TP
.BI -r
No Compression.
Apply no compression to the output data. (the default).
.TP
.BI -c
Run length coding.  Compress the output data using run-length
encoding.
.TP
.BI -i
IMCOMP Compression.
Compress the output data using the IMCOMP method.
.SH EXAMPLES
A directory contains twenty files named "storm001", "storm002", ...
"storm020". Each of these files contains a single RIS8 image. To
compress these images using run-length encoding and store them in a
file named "altcomp.hdf", use the following hdfcomp command:
.nf

        hdfcomp allcomp.hdf -c storm*.hdf

.fi
.SH "SEE ALSO"
\fBhdfpack\fP(1), \fBhdf\fP(5)