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<p>Hi Rick,<br>
Thanks for the reply. I guess I must have missed that masking doesn't work with the high-res datasets, so sorry about that. <br>
<br>
I've played around with shapefiles a little, but in our case we're interested in making some production-quality images pretty much in real-time, so the issue of "missing" data near the state boundaries is kind of a deal-breaker. Since all we care about is plotting
the data, I think the best bet for the moment is to mask with medium-res, and interpolate our data to the correct western NY boundary so that the incorrect portion does not plot. Something like this: <a href="http://www.atmos.albany.edu/facstaff/nbassill/live/regularmercator.png" class="OWAAutoLink" id="LPlnk844938" previewremoved="true">http://www.atmos.albany.edu/facstaff/nbassill/live/regularmercator.png</a></p>
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<p><span style="color:rgb(0,0,0); font-family:Calibri,Arial,Helvetica,sans-serif; font-size:16px">Nick Bassill, PhD</span></p>
<p style="color:rgb(0,0,0); font-family:Calibri,Arial,Helvetica,sans-serif; font-size:16px">
Modeler & Meteorologist, New York State Mesonet</p>
<p style="color:rgb(0,0,0); font-family:Calibri,Arial,Helvetica,sans-serif; font-size:16px">
LC SB-28, 1400 Washington Ave.,</p>
<p style="color:rgb(0,0,0); font-family:Calibri,Arial,Helvetica,sans-serif; font-size:16px">
SUNY, University at Albany, NY 12222</p>
(518) 442-6375
<p></p>
<p>http://nysmesonet.org/<br>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>From:</b> Rick Brownrigg <brownrig@ucar.edu><br>
<b>Sent:</b> Friday, February 17, 2017 5:24 PM<br>
<b>To:</b> Bassill, Nicholas<br>
<b>Cc:</b> ncl-talk@ucar.edu<br>
<b>Subject:</b> Re: [ncl-talk] New York Map issue(s)</font>
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<div>Hi Nicholas,<br>
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Yes, you are right about the western border issue: attached is a plot showing NCL's border (in white), and the Shapefile's border (in red). (this map was very quickly put together, please ignore the lack of esthetics). I'm not sure we can do anything about
that in the short term. I'll file a bug report.<br>
<br>
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<div>As for the second issu, the docs do explicitly state that NCL's builtin masking functions do not work with the HighRes/RANGS map databases.<br>
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However, for both purposes, state boundaries and masking, you might want to consider using a shapefile as a source. Check out the examples page for both a link to a good source of shapefiles, GADM, and for examples of how to use them to perform masking.<br>
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<a href="http://ncl.ucar.edu/Applications/shapefiles.shtml" id="LPlnk79074" previewremoved="true">http://ncl.ucar.edu/Applications/shapefiles.shtml</a>
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<a id="LPUrlAnchor_14876022970910.18098182756978698" href="http://ncl.ucar.edu/Applications/shapefiles.shtml" target="_blank" style="text-decoration: none;">NCL and Shapefiles</a></div>
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ncl.ucar.edu</div>
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Shapefiles. Shapefiles are a supported data format. in NCL, and hence can be read with addfile. Unlike other supported formats, however, a "shapefile" refers to a ...</div>
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Hope this helps...<br>
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Rick<br>
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<div class="gmail_quote">On Fri, Feb 17, 2017 at 8:59 AM, Bassill, Nicholas <span dir="ltr">
<<a href="mailto:nbassill@albany.edu" target="_blank">nbassill@albany.edu</a>></span> wrote:<br>
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<p>Hi All,<br>
New subscriber, so bear with me here. Two things - (1) a likely bug, and (2) a question. I'm using NCL 6.3. </p>
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<p>(1) It appears that the state boundaries for New York are slightly off in the far western boundary. I'm attaching an image (NY.png) that plots the state of NY, but with data that is specifically limited by the *actual* western border to demonstrate this.</p>
<p><br>
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<p>The relevant map settings are:</p>
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<p></p>
<div>res@mpDataBaseVersion = "Ncarg4_1"</div>
<div>res@mpDataSetName = "Earth..4" </div>
<div>res@mpFillAreaSpecifiers = (/"Land", "Land:North America:United States:Conterminous US:New York","Water"/)</div>
<div>res@mpSpecifiedFillColors = (/"white","transparent", "white"/)</div>
<div>res@mpInlandWaterFillColor = 238</div>
<div>res@mpLandFillColor = -1 ; transparent</div>
<div>res@mpOutlineOn = True</div>
<div>res@mpMaskOutlineSpecifiers = (/"Land"/)</div>
<div>res@mpOutlineSpecifiers = (/ "Land:North America:United States:Conterminous US:New York"/)</div>
<div>res@mpDataBaseVersion = "MediumRes"</div>
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<p><br>
</p>
<p>(2) Partially based off of that, and in an effort to have a more detailed coastline, I decided to try the "HighRes" dataset. However, I am not able to successfully do any masking. In this case I want *only* a fill in the shape of NY. For this I'm attaching
the dataset I'm using (currenttemp.dat), the script I'm using (temp.ncl, based largely on <a href="http://www.ncl.ucar.edu/Applications/Scripts/mask_8.ncl" class="m_-6855215173812133369OWAAutoLink" id="m_-6855215173812133369LPlnk638081" target="_blank">http://www.ncl.ucar.edu/<wbr>Applications/Scripts/mask_8.<wbr>ncl</a> for
the mask), and a sample image (current.png). </p>
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<p>Any help with (2) would be greatly appreciated!</p>
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<div id="m_-6855215173812133369divtagdefaultwrapper" style="font-size:12pt; color:#000000; background-color:#ffffff; font-family:Calibri,Arial,Helvetica,sans-serif">
<p><span style="color:rgb(0,0,0); font-family:Calibri,Arial,Helvetica,sans-serif; font-size:16px">Nick Bassill, PhD</span></p>
<p style="color:rgb(0,0,0); font-family:Calibri,Arial,Helvetica,sans-serif; font-size:16px">
Modeler & Meteorologist, New York State Mesonet</p>
<p style="color:rgb(0,0,0); font-family:Calibri,Arial,Helvetica,sans-serif; font-size:16px">
LC SB-28, 1400 Washington Ave.,</p>
<p style="color:rgb(0,0,0); font-family:Calibri,Arial,Helvetica,sans-serif; font-size:16px">
SUNY, University at Albany, NY 12222</p>
<a href="tel:(518)%20442-6375" value="+15184426375" target="_blank">(518) 442-6375</a>
<p></p>
<p><a href="http://nysmesonet.org/" target="_blank">http://nysmesonet.org/</a><br>
</p>
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