<div dir="ltr"><div><div><div>Hi Erik,<br><br></div>I'm afraid that's the nature of the polymarker implementation. It might be possible for you to create your own circles, with a finer resolution, using NhlDataPolymarker. I have no experience with using it, so can't advise further"<br><br><a href="http://ncl.ucar.edu/Document/Functions/Built-in/NhlDataPolymarker.shtml">http://ncl.ucar.edu/Document/Functions/Built-in/NhlDataPolymarker.shtml</a><br><br></div>Hope that helps...<br></div>Rick<br></div><div class="gmail_extra"><br><div class="gmail_quote">On Thu, Dec 1, 2016 at 7:12 AM, Erik Jan Schaffernicht <span dir="ltr"><<a href="mailto:eschaffe@uni-koeln.de" target="_blank">eschaffe@uni-koeln.de</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi,<br>
<br>
I use:<br>
<br>
res@gsMarkerIndex = 4<br>
<br>
to plot hollow circles. But their circumferences/scopes look polygonal angular and jerky. See pic attached.<br>
<br>
Is their an easy way to improve this?<br>
<br>
Something about my pdf resolution?<br>
<br>
Or can I change sthg. in my wks output settings?<br>
<br>
Or is there another "hollow circle" glyph I can select, that looks more like a *round* circle?<br>
<br>
Thanks for your consideration,<br>
<br>
Erik<br>
<br>
<br>
<br>
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