<div dir="ltr"><div><div>Dear all,<br><br></div>I'm trying to plot several polylines from a shapefile over a map which contains both scalar (oil concentration) and vector fields (current and stokes' drift fields).<br><br></div><div>As I've seen in yours example scripts to plot shapefiles, I want to use the Ngl.polyline function over the Ngl.add_polyline because the first is faster, but it doesn't work (I don't see the lines) for me.<br><br></div><div>I've tried to "play" with the DrawOrder resources, without any effect.<br></div><div>Can you please suggest me some possible solution?<br><br></div><div>Attached, you can find the code. <br></div><div>Thanks in advance!<br><br></div><div>Diego<br></div><div><div><div><div><br>-- <br><div class="gmail_signature"><div dir="ltr">Diego Bruciaferri
<br>Istituto Nazionale di Geofisica e Vulcanologia (INGV)
<br>National Institute of Geophysics and Volcanology
<br>
<br>Viale Aldo Moro 44
<br>40127 Bologna
<br>Italy
<br>Tel: +39 051 3782665 <br></div></div>
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