[gradsusr] Help new to grads

[Eric Altshuler]

Bo,

GADDIR specifies the path to the directory containing font files, map outline data, udunits.dat, etc. These files are needed by grads for almost all its operations, and they should be included in the Opengrads packages. I'm not too familiar with Opengrads, but the windows version is supposed to be relocatable so it should not be necessary to change GADDIR. In particular, do not set GADDIR to the path to your own data. Instead, do something along these lines:

sdfopen d:/seaice/data/filename.nc

You don't need to install udunits as long as GADDIR is set properly.

Best regards,

Eric L. Altshuler
Assistant Research Scientist
Center for Ocean-Land-Atmosphere Studies
4041 Powder Mill Road, Suite 302
Calverton, MD 20705-3106
USA

E-mail: ela at cola.iges.org
Phone: (301) 902-1257
Fax: (301) 595-9793

----- Original Message -----
From: "Bo Qu" <qubo62 at gmail.com>
To: "GrADS Users Forum" <gradsusr at gradsusr.org>
Sent: Sunday, May 16, 2010 10:26:20 PM
Subject: Re: [gradsusr] Help new to grads

Hi,
I got a new problem here. After I changed the environment variable
GADDIR to my data file folder which is in D drive, such as
D:/seaice/data/, I tried to open my nc data file using sdfopen
statement, it tells me that udunits(3): couldn't open units darabase
"D:/seaice/data/udunits.dat", no such file or directory. It seems I need
to install udunits and how to do it and how to make the file directory
working? I am in my window 7 operation system.

Many thanks
Bo



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