<div dir="auto">What you did was right and I cannot see any obvious errors in your code. Usually if you get no errors it's because the marker get placed but somewhere where you don't expect, or maybe the marker size is too small, but that's not your case, 5 should be big enough. <div dir="auto"><br></div><div dir="auto">Can you share a minimal working version of your script and data? </div><div dir="auto">You could also try to change the bounds of your map projection to include all the globe and see where your marker is wandering around :-)</div></div><br><div class="gmail_quote"><div dir="ltr">Il mer 20 giu 2018, 11:54 <<a href="mailto:G.Monte@isac.cnr.it">G.Monte@isac.cnr.it</a>> ha scritto:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Dear all,<br>
I would like to add a marker for a given latitude-longitude<br>
(45.43°N,12.12°E) on a contouring map in NCL 6.4.0. For the plot, I used<br>
gsn_csm_contour_map function and I need only a single marker to add in. I<br>
tried the following commands:<br>
<br>
polyres = True<br>
polyres@gsMarkerIndex = 16<br>
polyres@gsMarkerSizeF = 5.<br>
plot = gsn_csm_contour_map(wks,Z_region,res)<br>
dum = gsn_add_polymarker(wks,plot,12.12,45.43,polyres)<br>
draw(plot)<br>
<br>
and no error messages appeared, but marker was not added on the map anyway.<br>
I do not understand the reason; maybe, I think that gsn_add_polymarker<br>
function would be suited only for several markers. Are there existing<br>
other functions to add a single marker on a NCL contouring map?<br>
<br>
Thanks,<br>
Giulio Monte<br>
<br>
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