<div dir="ltr">Hi Ty,<div><br></div><div>I don't know for certain, but there is this blurb on the docs fo wrf_map_overlays; perhaps that will help:</div><div><br></div><div><a href="http://www.ncl.ucar.edu/Document/Functions/WRF_arw/wrf_map_overlays.shtml">http://www.ncl.ucar.edu/Document/Functions/WRF_arw/wrf_map_overlays.shtml</a><br></div><div><br></div><div><p style="margin:10px 0px 20px;padding:0px;color:rgb(51,51,51);font-family:verdana,sans-serif;font-size:13.333333015441895px;line-height:12pt;font-variant-ligatures:normal;font-variant-east-asian:normal"><strong style="margin:0px;padding:0px">wrf_map_overlays</strong> is part of a library of functions and procedures in <a href="http://www.ncl.ucar.edu/Document/Functions/WRF_arw/WRFUserARW.shtml" style="margin:0px;padding:0px;text-decoration:none;color:rgb(133,45,133)">WRFUserARW.ncl</a> written to help users plot ARW WRF model data. This function replaces <a href="http://www.ncl.ucar.edu/Document/Functions/WRF_arw/wrf_map_overlay.shtml" style="margin:0px;padding:0px;text-decoration:none;color:rgb(133,45,133)"><strong style="margin:0px;padding:0px">wrf_map_overlay</strong></a>.</p><p style="margin:10px 0px 20px;padding:0px;color:rgb(51,51,51);font-family:verdana,sans-serif;font-size:13.333333015441895px;line-height:12pt;font-variant-ligatures:normal;font-variant-east-asian:normal">If you want to use gsn_add_poly<i style="margin:0px;padding:0px">xxxx</i> routines (like <a href="http://www.ncl.ucar.edu/Document/Graphics/Interfaces/gsn_add_polymarker.shtml" style="margin:0px;padding:0px;text-decoration:none;color:rgb(133,45,133)"><strong style="margin:0px;padding:0px">gsn_add_polymarker</strong></a>) to add primtives to a WRF plot, then you need to set:</p><p style="margin:10px 0px 20px;padding:0px;color:rgb(51,51,51);font-family:verdana,sans-serif;font-size:13.333333015441895px;line-height:12pt;font-variant-ligatures:normal;font-variant-east-asian:normal"></p><pre style="margin-top:0px;margin-bottom:0px;padding:0px;font-size:13.333333015441895px;line-height:12pt;font-family:courier;border-style:solid;border-width:0px 0px 15px;border-color:transparent;color:rgb(0,0,0)">plt_res@PanelPlot = True
plt_res@FramePlot = False
</pre><p style="margin:10px 0px 20px;padding:0px;color:rgb(51,51,51);font-family:verdana,sans-serif;font-size:13.333333015441895px;line-height:12pt;font-variant-ligatures:normal;font-variant-east-asian:normal">before you call <strong style="margin:0px;padding:0px">wrf_map_overlays</strong>. Then, call the appropriate gsn_add_poly<i style="margin:0px;padding:0px">xxxx</i> routine to attach the desired primitives, and finally call <a href="http://www.ncl.ucar.edu/Document/Functions/Built-in/draw.shtml" style="margin:0px;padding:0px;text-decoration:none;color:rgb(133,45,133)"><strong style="margin:0px;padding:0px">draw</strong></a>(plot) and <a href="http://www.ncl.ucar.edu/Document/Functions/Built-in/frame.shtml" style="margin:0px;padding:0px;text-decoration:none;color:rgb(133,45,133)"><strong style="margin:0px;padding:0px">frame</strong></a>(wks) to draw the plot with the attached primitives and advance the frame.</p></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Feb 7, 2018 at 8:52 AM, Ty Buckingham <span dir="ltr"><<a href="mailto:ty.buckingham@manchester.ac.uk" target="_blank">ty.buckingham@manchester.ac.uk</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">




<div>
<div style="direction:ltr;font-family:Tahoma;color:#000000;font-size:10pt">Hi there,
<div><br>
</div>
<div>I'm currently struggling to plot a line using gsn_add_polyline over my wrf_map_overlay plot. Each time I try, I just receive two separate plots rather than the line overlaid. </div>
<div><br>
</div>
<div>I've tried using the online resources and some previous answers but to no luck. Any help?</div>
<div><br>
</div>
<div>Thanks</div><span class="HOEnZb"><font color="#888888">
<div>Ty</div>
</font></span></div>
</div>

<br>______________________________<wbr>_________________<br>
ncl-talk mailing list<br>
<a href="mailto:ncl-talk@ucar.edu">ncl-talk@ucar.edu</a><br>
List instructions, subscriber options, unsubscribe:<br>
<a href="http://mailman.ucar.edu/mailman/listinfo/ncl-talk" rel="noreferrer" target="_blank">http://mailman.ucar.edu/<wbr>mailman/listinfo/ncl-talk</a><br>
<br></blockquote></div><br></div>