On Feb 4, 2008 9:01 AM, <<a href="mailto:gall@meteo.psu.edu">gall@meteo.psu.edu</a>> wrote:<br><div class="gmail_quote"><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
Arlindo,<br><br>Thank you for all your help. I have succesfully installed<br>grads-1.9.0-rc1-bin-x86_64... and grads-1.9.0-rc1-gex-x86_64... and<br>set the necessary environmental variables. When I open grads and do a<br>
'query udft', I see fish.<br><br>In testing the fish udf, I ran into a problem:<br><br>ga-> psi=fish(vor)<br>Error from fish: lat/lon coords must be LINEAR<br></blockquote><div><br>Did you try the utFish <a href="http://example.gs">example.gs</a>? The test data set is here<br>
<br> <a href="http://opengrads.org/test_data">http://opengrads.org/test_data</a><br> <br></div><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<br>Is there anyway around this or do I need to recreate my ctl and dat<br>file with linear lat/lon coords? </blockquote><div><br>You should be able to do this on the fly, read on.<br> </div><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
Is there some grads command I can<br>issue to have values interpolated to linear lat-lon coords?<br></blockquote><div><br>Yes, unfortunately fishpak requires a regular lat/lon grid. However you should be able to use the re() extension to interpolate it to a regular grid. Documentation for re() is here:<br>
<br> <a href="http://opengrads.org/doc/udxt/re/">http://opengrads.org/doc/udxt/re/</a><br><br>The simplest usage is<br><br>ga-> d re(ps,1)<br><br>to interpolate 'ps' to a 1x1 regular lat/lon grid. It may be better to compute vorticity on the native grid and then interpolate it to a regular grid.<br>
</div><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><br>Any clarification would be most appreciated. Thanks again for all of<br>your help.<br>
</blockquote><div><br><br>You are welcome. I'm cc'ing this to gradsusr as it may be useful to other fish() users as well.<br><br> Good Luck,<br><br> Arlindo<br><br> </div><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<br>--Jeff<br><div><div></div><div class="Wj3C7c"><br><br>Quoting Arlindo da Silva <<a href="mailto:dasilva@alum.mit.edu">dasilva@alum.mit.edu</a>>:<br><br>> On Feb 3, 2008 10:28 PM, <<a href="mailto:gall@meteo.psu.edu">gall@meteo.psu.edu</a>> wrote:<br>
><br>>> Arlindo,<br>>><br>>> Thanks for all of your assistance in helping me figure this out. I am<br>>> running on a PC red hat linux 64-bit system. Can I use the<br>>> precompiled supplibs or do I have to build them?<br>
><br>><br>> You realize that we have grads binaries for x86_64 that could use without<br>> doing any build, right? And that if these do not work the i686 binaries may<br>> work. Look at the "grads" package at our download area at <a href="http://sf.net" target="_blank">sf.net</a>.<br>
><br>> Also, if I can use a<br>>> pre-compiled supplibs, which file is it? Is it<br>>> supplibs-2.0.1-x86_64-unknown-linux-gnu.tar.gz ?<br>><br>><br>> Yes, you should be able to use the pre-compiled supplibs. Actually, use the<br>
> v2.0.0 for GrADS v1.9. The supplibs-2.0.1 is meant for the just release<br>> GrADS v2. The "Release Notes" should say so.<br>><br>> In summary, if are allowed to, just install binaries<br>><br>
> grads-1.9.0-rc1-bin-x86_64... (binaries under package grads)<br>> grads-1.9.0-rc1-gex-x86_64... (extensions binary under package<br>> "extensions")<br>><br>> Then set the UDXT environment variable and you are set to start using<br>
> fish().<br>><br>> Arlindo<br>><br>><br>><br>><br>><br>><br>> --<br>> Arlindo da Silva<br>> <a href="mailto:dasilva@alum.mit.edu">dasilva@alum.mit.edu</a><br>><br><br><br>
<br></div></div><div><div></div><div class="Wj3C7c">--<br>Jeffrey S. Gall<br>Graduate Research Assistant<br>Dept. of Meteorology<br>Pennsylvania State University<br><br><a href="http://www.meteo.psu.edu/%7Egall" target="_blank">www.meteo.psu.edu/~gall</a><br>
<br>----------------------------------------------------------------<br>This message was sent using IMP, the Internet Messaging Program.<br><br></div></div></blockquote></div><br><br clear="all"><br>-- <br>Arlindo da Silva<br>
<a href="mailto:dasilva@alum.mit.edu">dasilva@alum.mit.edu</a>