Hdf tools : HDF4 data format conversion tools

Development Tools

25 July 2012

Language/Format: C
Application type(s): Data Conversion
Related project(s): Megha-Tropiques

Description

This package contains some data format conversion tools for HDF4 files :

hdf2raw : write a HDF4 SDS to a binary file
raw2hdf : write a 2D binary data to a HDF4 file
ncf2hdf : convert a NETCDF file to an HDF one

Usage

hdf2raw

This tool extracts the data of a SDS in an HDF file, and writes it out to a binary file

hdf2raw  [OPTIONS]  -isds=<SDS-number> -of=<dest-file> <src-filei>
 
    <src-file>  : the input HDF4 file
 
    <SDS-number> : the index of the SDS to dump ( starting from 0 )
 
    <dest-file> : destination file ( directory path included )
 
[OPTIONS]
 
      -v     verbose mode
 
      -overwrite
             overwrite the output file if already existent

raw2hdf

This tool writes the data of a binary file to a 2D HDF’s SDS

raw2hdf [-v] [-append]  -size=<width>x<heighti> -type=<data_type> -of=<dest-file> <src-file>
 
    <src-file>   : the input HDF4 file
 
[OPTIONS]
 
      -v     verbose mode
 
      -append
             append the data at the end of the HDF file
 
      -size  size of the binary data array (<width>x<height>)
 
      -type  type of the read binary data. Allowed types : float64|float32|int32|uint32|int16|uint16|int8|uint8|char8|uchar8
 
      -isds  Index of the sds to read (starting at 0)
 
      -of    full output file name (path included)

ncf2hdf

ncf2hdf transforms NetCDF_file to an HDF file. It is possible to select only some SDS to extract and to deal with “dimensions” SDS either as standard SDS, or as coordinate vectors.

If NetCDF input file name has a known suffix (“nc”, “ncf” ou “netcdf”, any case), HDF output file has the same basename with the “hdf” suffix. Otherwise, HDF output file name is built by adding the “hdf” suffix at the end of NetCDF input file name.

ncf2hdf [-v] [-d] [-s sds1[,sds2,...]] <NetCDF_file>
 
    <NetCDF-file>   : the input NETCDF file
 
[OPTIONS]
 
      -v     Displays some details about conversion on standard output.
 
      -d     Deals with &quot;dimension&quot; SDS as standard SDS; the default is to deal with &quot;dimension&quot; SDS as coordinate vectors.
 
      -s     The  HDF  output file will only contain specified SDS. One or more SDS must be specified by name in the comma-delimited list without space following this option.

Download

Sources can be downloaded here :

hdf_tools.v1.2.0.tar.gz

Package can be browsed here :

hdf_tools

Compilation

Prerequisites

a C compiler
a HDF4 library, compiled with the NETCDF support enabled ( http://www.hdfgroup.org/products/hdf4/ )

Environment

First, set the pathes to the HDF4 library by defining the environment variables

HDFINC=<HDF4-includes-directory> , where <HDF4-includes-directory> contains the HDF4 includes : hdf.h, mfhdf.h…
HDFLIB=<HDF4-libraries-directory>, where <HDF4-libraries-directory> contains the HDF4 libraries : libdf.a ( or libdf.so ), libmfhdf.a ( or libmfhdf.so )

If you are using the bash shell, this can be done via the export command :

> export HDFINC=<HDF4-includes-directory>
> export HDFLIB=<HDF4-libraries-directory>

Of course, replace <HDF4-includes-directory> and <HDF4-libraries-directory> by the real paths on your system.

Build

Build the application by running

> ./configure --prefix=<install-root-dir>
> make
> make install

If successfull, the tools will be situed in the <install-root-dir>/bin directory.

Copyright

Bruno SIX, bruno.six@icare.univ-lille.fr
Jacques DESCLOITRES, jacques.descloitres@icare.univ-lille.fr
Nicolas PASCAL, nicolas.pascal@icare.univ-lille.fr

This program is a free software; you can redistribute it and/or modify it under the terms of the CeCILL Public License as published by www.cecill.info (License version 2 or later).

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the CeCILL Public License for more details.

You should have received a copy of the CeCILL Public License along with this program; if not, please contact www.cecill.info

For any questions or concerns regarding this program, or general information about the ICARE Project, please email to contact@icare.univ-lille.fr

Author(s): Bruno Six, Jacques Descloitres, Nicolas Pascal (ICARE)