HDF And HDF-EOS Tools

HDF And HDF-EOS Tools
R.Suresh
NASA/GSFC/HSTX
Email:Suresh@rattler.gsfc.nasa.gov
Ph:301-441-4092
FAX: 301-441-4335

HDF Vendors/Software Developers Workshop

1

HDF Tools

•

HDF Utilities

•

NCSA Tools

•

Other Public Domain Tools

•

Commercial Tools


2

HDF Utilities
make24 ristosds

Convert Raster Image Sets to Scientific Data Sets

vshow

Display the contents and structure of Vgroups and Vdatas

hdfcomp

Compress Raster Image Sets

hdfpack

Free unused space in file; join linked blocks

hdftor8

Output 8-bit Raster Image Set as raw 8-bit image

paltohdf

Ingest raw palette as HDF palette

vcompat

Update Vset 1.0 files to Vset 2.0 and higher


3

HDF Utilities
Utility

Description

hdf24to8

24-bit Raster Image Sets to 8-bit Raster Image Sets

hdfed

Low-level file browse with limited editing capabilities

hdfrseq

Play an animation sequence through NCSA/BYU Telnet

jpeg2hdf

Ingest raw JPEG compressed image as a compressed RIS

r8tohdf

Ingest raw 8-bit image as 8-bit Raster Image Set

vmake

Create Vset structures from ASCII text

hdf2jpeg

Output Raster Image Set as raw JPEG image

hdfls

List contents of an HDF file (tags and reference numbers)

hdftopal

Ouput HDF palette as raw palette


4

NCSA Tools
Tool

Description

The NCSA Java-based HDF Viewer (JHV): It is a Java-based implementation of an HDF Viewer.
The NCSA Collaborative Java-based HDF Viewer: It is a version of JHV which allows several users
to simultaneously browse the contents of an HDF
file across a local area network or the internet.
HDF WWW Scientific Data Browser (sdb-CGI)
Image/

Standalone image/animation display and processing

X Image

SGI Iris/Indigo, Sun SPARC, DECstation, IBM RS/6000, Cray, Macintosh

X Data Slice

Standalone 3-D data set display
SGI Iris/Indigo, Sun SPARC, DECstation, DEC Alpha, IBM RS/6000, Cray

Datascope

Standalone 2-D data set display and processing

Reformat/

Conversion of data into HDF

Xreformat

SGI Iris/Indigo, Sun SPARC, DECstation, DEC Alpha, IBM RS/6000

URL http//www.ncsa.uiuc.edu/indices/software/


5

EOSDIS Project Tools

Data and Information Access Link ( DIAL) is a package of
software tools based on WWW to provide access to data. It has
many features such as browsing, plotting, subsampling and
subsetting. Currently it works with HDF files in UNIX
environment. This package will work with HDF-EOS files in
future.
EOSView is a HDF browser developed by the ECS project to
display HDF data. This tool is under development and eventually
will become HDF-EOS browser.


6

Other Free Tools
Product
Name
DDI

Developer
LLNL

Platforms
Unix

Description
The Data and Dimensions
Interface addresses a significant
problem in the visualization of
large data sets: Extracting only
the relevant data and providing it
to a chosen graphics engine in the
required form without undue
effort. DDI reads and writes a
number of publicly available file
formats, and sends data to public
domain and commercial
visualization systems.

URL: http:// www-pcmdi.llnl.gov/williams/ddi/ddi.html


7

Other Free Tools
Product
Name
DODS

Developer

Platforms

USN

Description
The Distributed Oceanographic
Data System, developed
specifically for oceanographic
data, provides flexible access to a
wide variety of data and facilitates
their analysis with existing
software.

URL: http://dods.gso.uri.edu/DODS/home/home.html


8

Other Free Tools
Product
Name
Envision

Developer

Platforms

NCSA

Description
This is an interactive system for
the management and visualization
of large scientific data sets. It runs
under X/Motif, manages data
stored in HDF or netCDF files, and
does visualization using IDL,
NCSA Collage, and NCSA
XDataSlice.

URL http:// www.atmos.uiuc.edu/envision/envision.html


9

Other Free Tools

Product
Name
FreeForm

Developer

Platforms

National
Geophysical
Data Center,
NGDC.

Description
This application provides a flexible
method for specifying data formats
to facilitate data access,
management, and use

URL: http://www.ngdc.noaa.gov/seg/freeform/


10

Other Free Tools

Product
Name
GRASS

Developer
U. S. Army

Platforms
UNIX

Description
The Geographical Resources
Analysis Support System
(GRASS), is an integrated set of
programs designed to provide
digitizing, image processing, map
production, and geographic
information system capabilities to
its users.

URL: http:/www.cecer.army.mil/grass/GRASS.main.html


11

Other Free Tools
Product
Name
HDF Browser

Developer
Fortner Research

Platforms
Win3.1/95/
NT and Mac

Description
Offers point-and-click access to
data stored in the HDF format.
Opening an HDF file with the
HDF Browser lets you see all
hierarchical components of any
HDF file and then view the data
stored in each component. The
HDF Browser contains editors to
view data stored as tables, 2-D
arrays, multidimensional arrays,
annotations, text attributes, raster
images, and color palettes

URL: http://www.fortner.com/docs/product_hdf_b.html


12

Other Free Tools

Product
Name
HDFLook

Developer

Platforms

Description

Solaris,
Alpha VMS,
HP-UX,
IRIX 5.3,
and AIX.

HDFLook is a friendly Motif HDF
viewer, useful for quality control
of Scientific Datasets. It allows
easy access to physical values and
ancillary data, and includes 2-D
graphics (radial, histogram). The
latest version supports image print
capabilities.

URL: Louis.Gonzalez@univ-lille1.fr


13

Other Free Tools
Product
Name
hdfv

Developer

Platforms
UNIX


Description
The hdfv tool is an HDF read-only
interface via TCL. It contains
"tclhdf" "hdfv". "tclhdf" is a
simple extension of tclsh, with
HDF's Vgroup/Vdata queries.
"hdfv" is an HDF-Viewer with a
GUI based on Tk. Currently, it
only supports the Vgroup/Vdata
model. This tool can also be
downloaded from the HDF
Contributed Software directory.

14

Other Free Tools

Product
Name
LinkWinds

Developer
JPL

Platforms
UNIX

Description
LinkWinds is a visual data analysis
and exploration system designed to
rapidly and interactively
investigate large multivariate and
multidisciplinary data sets to detect
trends, correlations and anomalies.

URL: http://linkwinds.jpl.nasa.gov/lwhome.html


15

Other Free Tools
Product
Name
ImageMagick

Developer

Platforms

Description
ImageMagick, version 3.7.3, is a
package for interactive
manipulation of images for the X
Window System. It is written in C
and interfaces to the X library,
and therefore does not require any
proprietary toolkit in order to
compile.

URL: http://www.wtech.ruhr-uni-bochum.de/doc/ImageMagick/ImageMagick.html


16

Other Free Tools
Product
Name
Ingrid

Developer

Platforms

Description
This tool is designed to manipulate
large datasets and model
input/output. It reads and writes
netCDF files, writes HDF files,
and generates plots, including line,
contour, vector, and scatter plots,
as well as histograms.

URL: http://exigente.Idgo.columbia.edu:81/


17

Other Free Tools

Product
Name
netCDF

Developer

Platforms

Description
Most of the netCDF tools can be
used with HDF, since HDF's
netCDF can be used in place of the
regular netCDF (except for
creating new netCDF files). A
non-exhaustive list of netCDF
tools can be found at Unidata

URL: http:// www4.etl.noaa.gov/dms.html


18

Other Free Tools

Product
Name
Overture

Developer

Platforms
SunOS 4.1.3,
Solaris, SGI
and DEC
systems.


Description
This application is an object
oriented C++ framework for
solving PDEs on complicated
geometries.

19

Other Free Tools

Product
Name
Radiance

Developer

Platforms

Description
This application is a suite of
programs for the analysis and
visualization of lighting in design.

URL: http://radsite.lbl.gov/radiance/HOME.html
Translator scheme from CAD to Radiance:
http://radsite.lbl.gov/radiance/man_html/Notes/translators.html


20

Other Free Tools
Product
Name
REINAS

Developer

Platforms

University of
California, Santa
Cruz

Description
The Real-time Environmental
Information Network and Analysis
System (REINAS) is a system
built to support realtime data
acquisition, management, and
visualization of environmental
data.

URL: http://csl.cse.ucsc.edu/reinas/


21

Other Free Tools
Product
Name
SciAn

Developer

Platforms

Description

Silicon
Graphics
workstations
and IBM
RS/6000
workstations
with the GL
option.

This is a scientific visualization
and animation package. r It brings
together the power of 3dimensional scientific visualization
and movie making with the ease of
use and familiarity of objectoriented drawing packages.

URL: http://www.scri.fsu.edu/~lyons/scian/


22

Other Free Tools

Product
Name
VISTAS

Developer

Platforms

JPL

Description
VISTAS Visual Data Probe is an
interactive, large volume data
browsing and
probing environment.

URL: http://www-dial.jpl.nasa.gov/VISTAS/VISTAS.html


23

Other Free Tools
Product
Name
VCS

Developer

Platforms

Program for
Climate Model
Diagnosis and
Intercomparison
(PCMDI) at the
Lawrence
Livermore
National
Laboratory
(LLNL).

Description
The Visualization and
Computation System VCS version
2.7, when it comes out, will
support the HDF format for both
read and write operations. VCS
greatly facilitates the selection,
manipulation, and display of
scientific data. By specifying
the desired data set, the graphics
method, and the display template,
the VCS user gains virtually
complete control over the
appearance of the data display and
associated text. Although VCS is
designed expressly to meet the
needs of climate scientists, the
breadth of its capabilities make it a
useful tool for other scientific
applications.

URL: http:// www-pcmdi.llnl.gov/software/vcs/index.html


24

Commercial Tools for HDF
Product
Name
AVS

Developer

Platforms

Advanced
Visual
Systems

DEC, HP,
IBM, SGI,
and SUN

Description
Includes a suite of data
visualization and analysis
techniques, incorporating
traditional visualization tools
such as 2D plots and graphs
and image processing as well
as advanced tools such as 3D
interactive rendering and
volume visualization.

URL: http://www.avs.com


25

Product
Name
Data
Explorer

Developer

Platforms

Description

IBM

major
UNIX
platforms

General-purpose software
package for data visualization
and analysis. It employs a
data-flow driven client-server
execution model and provides
a graphical program editor that
allows the user to create a
visualization using a point and
click interface.

URL: http://www.almaden.ibm.com/dx/


26

Product
Name
EASI/PACE

Developer

Platforms

Description

PCI

All major
UNIX
platforms,
MAC,
Win
3.1/95/NT

Image classification,
geometric correction,
orthorectification,
enhancement, filtering,
vector edit with image
backdrop, terrain analysis and
visualization, radar image
processing, DEM extraction,
atmospheric correction, and
hyperspectral data analysis.

URL: http://www.pci.on.ca/prod.html


27

Product
Name
ER Mapper

Developer

Platforms

ER
Mapping

All major
UNIX
platforms,
Win
3.1/95/NT

Description
Integrated mapping software
featuring image processing,
map production, 3D
presentations and GIS
integration

URL: http://www.ermapper.com


28

Product
Name
GDB

Developer

Platforms

Description

PCI

Major
UNIX
platforms

Generic Data Base library
(GDB) is used to access image
and auxiliary information from
data files. This allows
different file types to be used
interchangeably where it
makes sense for the file type.

URL: http://www.pci.on.ca/cgi-bin/pcihlp/gdb


29

Product
Name
IDL

Developer

Platforms

Description

Research
Systems
Inc

Major
UNIX
platforms,
Win
3.1/95/NT
MAC

Allows you to display a
satellite image (e.g. AVHRR)
on a map projection. The input
is a 2D array of satellite image
values, and corresponding 2D
arrays of latitude and
longitude for each pixel.

URL: http://www.rsinc.com


30

Product
Name
IRIS
Explorer

Developer

Platforms

NAG

Major
UNIX
platforms

Description
Data visualization system
which allows users to build
complex applications

URL: http://www.nag.co.uk/Welcome_IEC.html


31

Product
Name
Noesys

Developer

Platforms

Description

Fortner
Research

Win
3.1/95/NT
MAC

Provides native support for
data stored in the HDF file
format and allows users to
view and edit individual
components of these complex
files.

URL: http://www.fortner.com


32

Product
Name
Plot

Developer

Platforms

Description

Fortner
Research

Major
UNIX
platforms,
Win
3.1/95/NT
MAC

Reads a variety of data
formats directly and can
handle large datasets. Creates
scientific plots. Generates line
plots, color scatter plots,
parametric plots, and doubleY plots.

URL: http://www.fortner.com/docs/product_plot.html


33

Product
Name
T3D

Developer

Platforms

Description

Fortner
Research

Win
3.1/95/NT
MAC

Provides a volumetric
visualization tool for
Macintosh or Windows. It can
read a variety of file types,
and each provides volumetric
rendering with slices,
isosurfaces, and animation.

URL: http://www.fortner.com/docs/product_T3D.html


34

Product
Name
Transform

Developer

Platforms

Description

Fortner
Research

Major
UNIX
platforms,
Win
3.1/95/NT
MAC

Directly reads a variety of
matrix and image file formats,
including HDF, TIFF, PICT,
FITS, and ASCII.
Generates pseudocolor
images, color surface plots,
contour plots, and vector plots.

URL: http://www.fortner.com/docs/product_transform.html


35

Product
Name
PV-Wave

Developer

Platforms

Visual
Numerics

Major
UNIX
platforms,
Open
VMS,
Win
95/NT

Description
Allows the user to view,
analyze and compare data for
many business, science and
engineering applications.

URL: http://www.boulder.vni.com/products/wave


36

Summary
•NASA does not endorse any particular tool discussed in
this presentation
•Little additional tools development has occurred in the
last two years for browsing and displaying HDF
formatted data.
•Very few tools are available to support HDF-EOS
formatted data.


37

Conclusion
New HDF-EOS tools and utilities are needed to support
the terabytes of EOS AM-1 data from multiple
instruments and disciplines.

Types of tools
HDF-EOS data ingest capability for the existing image
processing and analysis packages
New image processing packages with additional
functionality for analysing and integrating Earth Science data.

38

Types of tools
•Browsers
•Data dumpers
•Translation tools

Tools and utilities developed to work with
HDF-EOS data as well as HDF will attract the
broader community of HDF users.


39

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