| GrADS
is free software. Under the terms of the new
COPYRIGHT, you can redistribute it and/or
modify it under the terms of the GNU General Public License. GrADS is
distributed in the hope that it will be useful, but without any warranty;
without even the implied warranty of merchantibility or fitness for a
particular purpose.
The tables below contains links to the most recent releases. Be sure to download
the appropriate tar file for your particular hardware and operating system.
Older builds
are available via ftp.
The Latest Version of GrADS
GrADS version 2.0 is now available. The links below point to the latest public release (version 2.0.a2). The "source" link contains the source code, documentation, and the supplementary data sets. The links for individual operating systems contain only a suite of executables.
GrADS 2.0 is in "alpha" status while new features are being added. Please look at the Change Log for lists of features and bug fixes associated with each release.
(Earlier releases are in ftp://iges.org/grads/2.0/old/.)
Operating System |
GrADS 2.0.a2
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| Linux |
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Macintosh OSX |
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Earlier Releases of GrADS
The GrADS distributions
for version 1.8 and 1.9 contain pre-compiled binary executables, the source code, documentation,
and the supplementary data sets that are required to run GrADS (fonts
and map files). Two MS Windows builds of version 1.8 are
available: xwin32 requires an X-window server in order to display graphics,
and win32e uses native windows. Click on the "Getting Started"
links for more information about the win32 builds.
What Exectuable Files are in a Release?
The GrADS executables for version 2.0 are as follows:
| grads |
Reads GRIB1, GRIB2, gridded binary, BUFR, GrADS
station data, NetCDF, HDF-SDS;
Writes gridded binary |
| gradsdap |
Reads GRIB1, GRIB2,, gridded binary, BUFR, GrADS
station data, NetCDF, HDF-SDS, and OPeNDAP (aka DODS);
Writes gridded binary |
The GrADS exectuables for versions 1.9 and earlier are as follows:
| gradsc |
Reads GRIB, gridded binary, BUFR, GrADS
station data
Writes GRIB |
| gradsnc |
Reads GRIB, gridded binary, BUFR, GrADS
station data, NetCDF
Writes GRIB, NetCDF |
| gradshdf |
Reads GRIB, gridded binary, BUFR, GrADS
station data, NetCDF, HDF-SDS
Writes GRIB, HDF-SDS |
| gradsdods |
Reads GRIB, gridded binary, BUFR, GrADS
station data, NetCDF, OPeNDAP (fka DODS)
Writes GRIB, NetCDF |
External utilities are packaged in the binary distributions for all versions of GrADS (with exceptions as noted):
| gribmap |
"Maps" a GRIB data set to a GrADS descriptor
file |
| gribscan |
Extracts grid and variable info from a GRIB
data set |
| grib2scan |
Extracts grid and variable info from a GRIB2
data set (only in version 2.0+) |
| bufrscan |
Reads BUFR messages and prints out ascii values
(only in version 1.9+) |
| gxps |
Converts GrADS metafiles to Postscript |
| gxeps |
Converts GrADS metafiles to Encapsulated Postscript |
| gxtran |
Displays metafiles |
| stnmap |
Maps station data |
| wgrib |
See the wgrib home page |
The MS windows versions are packaged with an install
script. For the UNIX versions, you must uncompress and unpack the tar
file after you've downloaded it:
gunzip <tarfile>.gz
tar xvf <tarfile>
The GrADS executables are typically placed in /usr/local/bin/grads/. If you do not have write permission for this directory, you can put them
in a subdirectory of your home directory (~/bin)
or anywhere else in your path.
Supplementary Files
The font and map files are supplementary data sets that are required in order to run GrADS. Their default location is: /usr/local/lib/grads/.
If you do not have write permission for this directory
you can place the files elsewhere, but you must also change the environment
variable GADDIR so the GrADS executables will
know where to find these files. You can download the data files separately
by clicking here: data.tar.Z
.
cd <dirname>
uncompress data.tar.Z
tar xvf data.tar
setenv GADDIR <dirname>
An additional supplementary tar file contains a sample gridded
data set along with an example session that reviews basic GrADS capabilities.
This data set is not required to run GraDS. If you have not used GrADS before, you are strongly encouraged to obtain this
file and go through the sample session. You can download it directly by
clicking here: example.tar.Z
GrADS Metafile Viewer for Windows 95/NT
The GrADS metafile Viewer (GV) allows you to view
and manipulate GrADS graphics output files using Windows 95/NT. There
are two files to download: gv32.exe
and gv32.hlp
(Note: GV will not work with GrADS version 2.0.) To view a GrADS metafile simply double click
on a filename listed in the File Manager or Explorer, drag and drop the
file onto GV, or use the standard Open dialog box. GV assumes that
default extension of GRADS metafiles is GMF. If your file includes more
than one picture you can browse through pages using the keyboard keys
(PageDown and PageUp) or the toolbar buttons.
Use the View commands and the View/Options
dialog box to customize the image -- display it as black-and-white or
color, change the line thickness, or clip and enlarge any part of the
image. Use the right mouse button to access the most commonly used features.
There are two ways to save separate pages of
a GRADS metafile as Windows Metafile (WMF): 1) use the File/Save Page
As command, or 2) use the Edit/Copy command to copy the current
page to the Windows Clipboard and then Edit/Paste it in your favorite
Windows application that handles Windows Metafiles.
Use File/Print command to print a current
document to any printer (you do not need a Postscript printer). Use File/Print
Preview to display the active metafile as it would appear when printed.
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