<div dir="ltr"><div>Please <b>always</b> include ncl-talk.</div><div><br></div><div>FYI: In 2014 Mary Haley created a 43-minute <a href="http://www.ncl.ucar.edu/Training/Webinars/NCL_and_Shapefiles/"><b>webinar</b></a> introduction to shapefiles and
how to use shapefile data in NCL It provides a lot general shapefile information.I think this is quite good. <br></div><div>----</div><div>tar file attached</div><div><br></div><div>The United States Census cartographic boundary shapefile,
<b>cb_2018_us_nation_5m.zip</b>, was downloaded from:
<a href="https://www.census.gov/geographies/mapping-files/2018/geo/carto-boundary-file.html">
<b>https://www.census.gov/geographies/mapping-files/2018/geo/carto-boundary-file.html</b></a></div><div><br></div><div>Good luck<br> </div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Mon, Dec 2, 2019 at 10:44 AM Wensong Weng <<a href="mailto:wsweng@yorku.ca">wsweng@yorku.ca</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
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<div style="font-family:Calibri,Arial,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
Hi Dennis,</div>
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Thanks very much for what you have done. </div>
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Where can I download those shapefiles you have used in the <span style="color:rgb(32,31,30);font-size:15px;background-color:rgb(255,255,255);display:inline">shapefiles_25
and shapefiles_26 ( I did a brief search and could not find them)?</span></div>
<div style="font-family:Calibri,Arial,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
<span style="color:rgb(32,31,30);font-size:15px;background-color:rgb(255,255,255);display:inline"><br>
</span></div>
<div style="font-family:Calibri,Arial,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
<span style="color:rgb(32,31,30);font-size:15px;background-color:rgb(255,255,255);display:inline">Thanks
again,</span></div>
<div style="font-family:Calibri,Arial,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
<span style="color:rgb(32,31,30);font-size:15px;background-color:rgb(255,255,255);display:inline"><br>
</span></div>
<div style="font-family:Calibri,Arial,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
<span style="color:rgb(32,31,30);font-size:15px;background-color:rgb(255,255,255);display:inline">Wensong</span></div>
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<span style="color:rgb(0,0,0);font-family:Calibri,Arial,Helvetica,sans-serif;font-size:12pt"><br>
</span></div>
<div style="font-family:Calibri,Arial,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
<span style="color:rgb(0,0,0);font-family:Calibri,Arial,Helvetica,sans-serif;font-size:12pt"> </span></div>
<div id="gmail-m_-3710416764893262700appendonsend"></div>
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<div id="gmail-m_-3710416764893262700divRplyFwdMsg" dir="ltr"><font style="font-size:11pt" face="Calibri, sans-serif" color="#000000"><b>From:</b> Dennis Shea <<a href="mailto:shea@ucar.edu" target="_blank">shea@ucar.edu</a>><br>
<b>Sent:</b> Monday, December 2, 2019 11:29 AM<br>
<b>To:</b> Wensong Weng <<a href="mailto:wsweng@yorku.ca" target="_blank">wsweng@yorku.ca</a>><br>
<b>Cc:</b> <a href="mailto:ncl-talk@ucar.edu" target="_blank">ncl-talk@ucar.edu</a> <<a href="mailto:ncl-talk@ucar.edu" target="_blank">ncl-talk@ucar.edu</a>><br>
<b>Subject:</b> Re: [ncl-talk] gsn_csm_contour_map plot</font>
<div> </div>
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<div>By default, NCL uses a proprietary [fast] method for this type of graphic rendering. Obviously, it was not great for this graphic.</div>
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<div>It is best to use (say) <b>obj_anl_ic </b>and then use a USA shapefile to eliminate 'noises' outside the USA. See:<br>
</div>
<div><br>
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<div><a href="http://www.ncl.ucar.edu/Applications/shapefiles.shtml" target="_blank"><b>http://www.ncl.ucar.edu/Applications/shapefiles.shtml</b></a></div>
<div>shapefiles_25 and shapefiles_26.</div>
<div><br>
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<div>The raster style was used to illustrate the underlying grid onto which the randomly spaced data were interpolated.</div>
<div>You can comment tor delet he RasterFil resource.</div>
<div><br>
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<div>Good luck<br>
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<div>
<div dir="ltr">On Mon, Nov 25, 2019 at 10:29 AM Wensong Weng via ncl-talk <<a href="mailto:ncl-talk@ucar.edu" target="_blank">ncl-talk@ucar.edu</a>> wrote:<br>
</div>
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<div style="font-family:Calibri,Arial,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
<p style="margin-top:0px;margin-bottom:0px;color:rgb(29,34,40);font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-size:13px;text-align:left;background-color:rgb(255,255,255)">
Dear NCL Group,</p>
<p style="margin-top:0px;margin-bottom:0px;color:rgb(29,34,40);font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-size:13px;text-align:left;background-color:rgb(255,255,255)">
</p>
<p style="margin-top:0px;margin-bottom:0px;color:rgb(29,34,40);font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-size:13px;text-align:left;background-color:rgb(255,255,255)">
I am using the gsn_csm_contour_map function to make a contour plot for the precipitation, see the attached. However, there are lots of un-wanted ‘noises’ outside of CONUS (no data). The data is a one dimension array with unstructured grids. How can I get rid
of those ‘noises’ and only draw the contour map over the CONUS.</p>
<p style="margin-top:0px;margin-bottom:0px;color:rgb(29,34,40);font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-size:13px;text-align:left;background-color:rgb(255,255,255)">
</p>
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Your help is greatly appreciated,</p>
<p style="margin-top:0px;margin-bottom:0px;color:rgb(29,34,40);font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-size:13px;text-align:left;background-color:rgb(255,255,255)">
</p>
<p style="margin-top:0px;margin-bottom:0px;color:rgb(29,34,40);font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-size:13px;text-align:left;background-color:rgb(255,255,255)">
Wensong Weng</p>
<p style="margin-top:0px;margin-bottom:0px;color:rgb(29,34,40);font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-size:13px;text-align:left;background-color:rgb(255,255,255)">
York Univ.</p>
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