The .ctl is a control file. It's a simple text file that tells Grads how to access and setup the display for the data file. The first entry in the control file points to the location of the data file. My guess is you don't have that set properly.<br>
<br>Jeff<br><br><div class="gmail_quote">On Thu, Nov 1, 2012 at 3:21 PM, Jerry Jien <span dir="ltr"><<a href="mailto:jerry.jien@mail.utoronto.ca" target="_blank">jerry.jien@mail.utoronto.ca</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<div style="direction:ltr;font-size:10pt;font-family:Tahoma">Thank you Jeff.
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<div>I have model.ctl, model.dat and as well as model.gmp and model.grb in my file folder though I'm not sure if the latter two are necessary. Yet, I still get the error message after typing in 'open model.ctl', which really handcuffs me from going through
the tutorial further. Do you see anything else that could have gone wrong?</div>
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<div>Jerry</div>
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<div style="direction:ltr"><font color="#000000" face="Tahoma"><b>From:</b> <a href="mailto:gradsusr-bounces@gradsusr.org" target="_blank">gradsusr-bounces@gradsusr.org</a> [<a href="mailto:gradsusr-bounces@gradsusr.org" target="_blank">gradsusr-bounces@gradsusr.org</a>] on behalf of Jeff Duda [<a href="mailto:jeffduda319@gmail.com" target="_blank">jeffduda319@gmail.com</a>]<br>
<b>Sent:</b> Thursday, November 01, 2012 4:03 PM<br>
<b>To:</b> GrADS Users Forum<br>
<b>Subject:</b> Re: [gradsusr] opening descriptor file<br>
</font><br>
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<div>There are two files you need. You already have model.ctl, but you need the data file, too. I think it's model.dat.<br>
<br>
Jeff Duda<br>
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<div class="gmail_quote">On Thu, Nov 1, 2012 at 2:57 PM, Jerry Jien <span dir="ltr">
<<a href="mailto:jerry.jien@mail.utoronto.ca" target="_blank">jerry.jien@mail.utoronto.ca</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<div style="direction:ltr;font-size:10pt;font-family:Tahoma">Hi there,
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<div>I have recently begun using GrADS and going through the tutorial section from <a href="http://www.iges.org/grads/gadoc/tutorial.html." target="_blank">http://www.iges.org/grads/gadoc/tutorial.htm</a>. My concern is getting GrADS to read the descriptor
file of model.ctl upon entering 'open model.ctl' in my command line. I understand there can be issue with the file directory that when entering on the script window but after double checking my path name, I can not decipher where it went wrong. </div>
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<div>My path name is /Users/jienjerr/Downloads/grads/bin/grads</div>
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<div>The graphic output window appears after I have pressed 'enter' following typing my path name but I would get 'Open Error: Can't open description file' in my command window.</div>
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<div>Can anyone please help to point out where I've done something wrong?</div>
<div><br>
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<div>Thank you.</div>
<div><br>
</div>
<div>Best Regards,</div>
<div>Jerry Jien</div>
<div>PhD Candidate</div>
<div>University of Toronto Scarborough</div>
<div>Department of Physical and Environmental Sciences</div>
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<br>
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<br><span class="HOEnZb"><font color="#888888">
</font></span></blockquote><span class="HOEnZb"><font color="#888888">
</font></span></div><span class="HOEnZb"><font color="#888888">
<br>
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<br>
-- <br>
Jeff Duda<br>
Graduate research assistant<br>
University of Oklahoma School of Meteorology<br>
Center for Analysis and Prediction of Storms<br>
<br>
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<br></blockquote></div><br><br clear="all"><br>-- <br>Jeff Duda<br>Graduate research assistant<br>University of Oklahoma School of Meteorology<br>Center for Analysis and Prediction of Storms<br><br>