<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><br><div><div>On Oct 11, 2012, at 2:14 PM, Muthuvel Chelliah wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite">Hello Bryan and other grads developers,<br><br>First of all thank you for all the great work you folks<br>do. You must have heard about several small issues<br>in grads2, that are yet to be resolved, for example,<br>the lack of regrid2, etc. Because of this, in most<br>
of CPC operations, we are still using grads version 1.94,<br>and not switched to grads2.<br></blockquote><div><br></div>Almost all the features of regrid (except the voting) have been incorporated into the lterp function. The documentation for lterp has been updated (<a href="http://iges.org/grads/gadoc/gradfunclterp.html">http://iges.org/grads/gadoc/gradfunclterp.html</a>), but this capability is not available in a public release yet. There is a build at CPC that you can use to try out the new features. I will send you the location offline. </div><div><br><blockquote type="cite"><br>Here is another one to the list of grads 2 problems.<br><br>In grads 2, I opened a file with undef explicitly<br>set as -999.0.<br>
<br>I defined a variable and computed something,<br>and write the values out via fwrite. For some<br>reason, it is not using the same undef values<br>as it is input control file, but has set the undef as:<br>ga-> q undef<br>
Output undef value is set to -999000000.000000<br><br>I was scratching my head, since it took me<br>some time to figure this out. This is definitely a bug, <br>and please take a look at this.<br></blockquote>This is not a bug. It was a required change that goes back to version 2.0.a6 from June of 2009. Here is the notice from the ChangeLog: </div><div><pre> * New commands "set undef" and "query undef" allow the user to
control the undefined data value for all forms of GrADS output.
This affects all the undefined values printed to screen in the
'gxout stat' and 'gxout print' output, as well as the undefined
values in fwrite, sdfwrite, and geotiff files.
The default output undef value is -9.99e8.
N.B. THIS FEATURE CHANGES THE DEFAULT BEHAVIOR OF GrADS! </pre><div>The documentation page for 'set undef' is at <a href="http://iges.org/grads/gadoc/gradcomdsetundef.html">http://iges.org/grads/gadoc/gradcomdsetundef.html</a></div><div>--Jennifer</div><div><br></div></div><div><br></div><div><blockquote type="cite"><br>Thanks again for all your great efforts into grads,<br>
which is greatly appreciated by us all.<br clear="all"><br>Muthu<br>-- <br><pre cols="72"><font style="font-family:tahoma,sans-serif">------------------------------------------------------------------<br>Dr.Muthuvel Chelliah, <a href="mailto:eMail%3AMuthuvel.Chelliah@noaa.gov" target="_blank">eMail:Muthuvel.Chelliah@noaa.gov</a><br>
Rm.3008, Climate Prediction Center, Ph:(301) 683-3393<br>NCEP/NWS/NOAA/U.S.Dept.of Commerce,<br>5830, University Research Court, NCWCP<br>College Park, MD 20740.</font><br></pre><br>
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<span class="Apple-style-span" style="font-size: 12px; "><span class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-align: auto; -khtml-text-decorations-in-effect: none; text-indent: 0px; -apple-text-size-adjust: auto; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px; "><div>--</div><div>Jennifer M. Adams</div><div>IGES/COLA</div><div>4041 Powder Mill Road, Suite 302</div><div>Calverton, MD 20705</div><div><a href="mailto:jma@cola.iges.org">jma@cola.iges.org</a></div><div><br class="khtml-block-placeholder"></div><br class="Apple-interchange-newline"></span></span>
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