<div dir="ltr"><div><div>Hello<br><br><b>This is offline.</b><br><br>Certainly for grids where there are conventional latitude and longitude coordinate variables [ eg: lat(lat), lon(lon) ]<br><br>( <a href="https://www.unidata.ucar.edu/software/netcdf/workshops/2011/datamodels/NcCVars.html">https://www.unidata.ucar.edu/software/netcdf/workshops/2011/datamodels/NcCVars.html</a> and<br> <a href="https://www.unidata.ucar.edu/software/netcdf/docs/netcdf_data_set_components.html">https://www.unidata.ucar.edu/software/netcdf/docs/netcdf_data_set_components.html</a> ),<br><br>the wind barbs follow conventions. <br><br>See the 1st few figures at:<a href="https://www.ncl.ucar.edu/Applications/barb.shtml" target="_blank"> https://www.ncl.ucar.edu/<wbr>Applications/barb.shtml</a><br><br>--<br></div>Also, see attached png file which was created from a regional rectilinear grid.<br></div><div>This follows the wind barb convention.<br></div><div><br>--<br><br></div><div>Can you please follow the instructions at: <b><a href="https://www.ncl.ucar.edu/ftp_files.shtml">https://www.ncl.ucar.edu/ftp_files.shtml</a></b><br><br><pre>ftp <a href="http://ftp.cgd.ucar.edu">ftp.cgd.ucar.edu</a>
anonymous
<i>jerry_leo<wbr>@<a href="http://msn.com">msn.com</a> <enter your email address for the password></i>
cd incoming
put <i>file1</i>
put <i>file2</i>
. . .<i>continue with 'put' commands until all desired files are uploaded</i>. . .
quit</pre></div><div><div><p>
When the upload is complete, send email
to <a href="mailto:ncl-talk@ucar.edu">ncl-talk</a> or the NCL team
member that you've already been working with and include the exact
names of the files, and the approximate size of each file.
</p><p>
<font color="red">For security reasons, you cannot list the contents of
the 'incoming' directory. This is why we need to know the exact names
of the files.</font>
</p><br></div><div>THX<br></div></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Thu, Jun 7, 2018 at 1:02 AM, Jianyu Liu <span dir="ltr"><<a href="mailto:jerry_leo@msn.com" target="_blank">jerry_leo@msn.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="ltr">
<div id="m_224699759238546582divtagdefaultwrapper" dir="ltr" style="font-size:12pt;color:rgb(0,0,0);font-family:Calibri,Helvetica,sans-serif,"EmojiFont","Apple Color Emoji","Segoe UI Emoji",NotoColorEmoji,"Segoe UI Symbol","Android Emoji",EmojiSymbols">
<p style="margin-top:0;margin-bottom:0">Hi,</p>
<p style="margin-top:0;margin-bottom:0"><br>
</p>
<p style="margin-top:0;margin-bottom:0">I'm using NCL 6.3.0, just noticed there was an issue for the
<span>Wind Barbs cross equator that gsn_csm_vector </span>does not currently automatically change the wind barb tick position to account for the <span>conventional difference for north and south of the equator</span>.
<br>
</p>
<p style="margin-top:0;margin-bottom:0"><br>
</p>
<p style="margin-top:0;margin-bottom:0">I knew it could <span>manually change the resource vcWindBarbTickAngleF to a negative value to get wind barbs that conform to the southern hemisphere convention</span>, but <span>this does not help for plots that cross
the equator where both conventions are needed. Please see the attachment for the example.</span></p>
<p style="margin-top:0;margin-bottom:0"><span><br>
</span></p>
<p style="margin-top:0;margin-bottom:0"><span>Here are my settings for the Wind Barbs</span></p>
<p style="margin-top:0;margin-bottom:0"><span><br>
</span></p>
<p style="margin-top:0;margin-bottom:0"><span></span></p>
<div> opts@gsnLeftStringFontHeightF = 0<br>
opts@gsnRightStringFontHeightF = 0<br>
opts@vcRefMagnitudeF = 10.0 ; define vector ref mag<br>
opts@vcRefLengthF = 0.030 ; define length of vec ref<br>
opts@vcGlyphStyle = "WindBarb" ; select wind barbs<br>
opts@vcMinDistanceF = 0.02 ; thin out windbarbs<br>
opts@vcVectorDrawOrder = "PostDraw"<br>
opts@vcRefAnnoOrthogonalPosF = -1.08</div>
<br>
<p></p>
<p style="margin-top:0;margin-bottom:0"><span>Wondering if I'm missing certain settings or what's the workaround for this sort of issue ?</span></p>
<p style="margin-top:0;margin-bottom:0"><span><br>
</span></p>
<p style="margin-top:0;margin-bottom:0"><span>Thanks for your time</span></p>
<p style="margin-top:0;margin-bottom:0"><span><br>
</span></p>
<p style="margin-top:0;margin-bottom:0"><span>Regards</span></p>
<p style="margin-top:0;margin-bottom:0"><span><br>
</span></p>
<p style="margin-top:0;margin-bottom:0"><span>Jerry<br>
</span></p>
<p style="margin-top:0;margin-bottom:0"><br>
</p>
<p style="margin-top:0;margin-bottom:0"><br>
</p>
</div>
</div>
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