<div dir="ltr"><div class="gmail_default" style="font-size:small">Hi Marston,</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">If you simply want to draw hatching on top of an existing contour plot, then you can use gsn_contour_shade. </div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small"><a href="http://www.ncl.ucar.edu/Document/Graphics/Interfaces/gsn_contour_shade.shtml">http://www.ncl.ucar.edu/Document/Graphics/Interfaces/gsn_contour_shade.shtml</a></div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">This function is for the sole purpose of taking an existing contour plot, and adding some hatching or stippling to highlight an area of interest.</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">Here are some examples:</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default"><a href="http://www.ncl.ucar.edu/Applications/conOncon.shtml#ex4">http://www.ncl.ucar.edu/Applications/conOncon.shtml#ex4</a><br></div><div class="gmail_default"><a href="http://www.ncl.ucar.edu/Applications/coneff.shtml#ex11">http://www.ncl.ucar.edu/Applications/coneff.shtml#ex11</a><br></div><div class="gmail_default"><a href="http://www.ncl.ucar.edu/Applications/overlay.shtml#ex5">http://www.ncl.ucar.edu/Applications/overlay.shtml#ex5</a><br></div><div class="gmail_default"><a href="http://www.ncl.ucar.edu/Applications/wavelet.shtml#ex3">http://www.ncl.ucar.edu/Applications/wavelet.shtml#ex3</a><br></div><div class="gmail_default"><br></div><div class="gmail_default">Some of these may not use gsn_contour_shade.</div><div class="gmail_default"><br></div><div class="gmail_default">Let ncl-talk know if this is not what you're after.</div><div class="gmail_default"><br></div><div class="gmail_default">--Mary</div><div class="gmail_default"><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Thu, Mar 8, 2018 at 3:47 AM, Marston Ward <span dir="ltr"><<a href="mailto:marston.johnston@gu.se" target="_blank">marston.johnston@gu.se</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">




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Hi,</p>
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I’m trying to mask a part of a  gsn_csm_contour plot using a “hatch”. I don’t want to simply mask out the area because I want to the data to still be visible under the hatch.</p>
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Is it possible to do this in NCL? A simple search returned nothing in NCL. Just wondering if this is possible and it so, are there examples.</p>
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Best,</p>
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/M</p>
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<p class="MsoNormal"><b><i>Marston S. Ward</i></b><br>
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