<div dir="ltr"><div class="gmail_default" style="font-size:small">Mathieu,</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">What version of NCL are you running?</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">ncl -V</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">I was able to run your script just fine, but I changed cnFillMode from "AreaFill" to "RasterFill". See attached png.</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">--Mary</div><div class="gmail_default" style="font-size:small"><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Mon, Dec 8, 2014 at 8:17 AM, Mathieu Dutour <span dir="ltr"><<a href="mailto:mathieu.dutour@gmail.com" target="_blank">mathieu.dutour@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div style="font-size:12.6666669845581px"><div>Dear ncl users,<br><br></div>I have some errors for some contour plots on unstructured<br>grids (the script is in attachment and the relevant netcdf file</div><div style="font-size:12.6666669845581px">is available from</div><div style="font-size:12.6666669845581px"><a href="http://mathieudutour.altervista.org/Sending/test.nc" target="_blank">http://mathieudutour.altervista.org/Sending/test.nc</a> )</div><div style="font-size:12.6666669845581px"><br>Below is exact error:<br>fatal:ContourPlotPreDraw: ARSCAM/ARPRAM - ALGORITHM FAILURE<br>fatal:ContourPlotDraw: draw error<br>fatal:PlotManagerPreDraw: error in plot pre-draw<br>fatal:_NhlPlotManagerDraw: PreDraw error<br><br></div><span style="font-size:12.6666669845581px">I believe that the data is too irregular for the algorithm to plot it.</span><br style="font-size:12.6666669845581px"><span style="font-size:12.6666669845581px">But is there any way to alleviate this problem?</span><br><div><span style="font-size:12.6666669845581px"><br></span></div><div><span style="font-size:12.6666669845581px">Secondly, the plots sometime takes extremely long time to be done.</span></div><div><span style="font-size:12.6666669845581px">The mesh has only 110804 nodes which is nowhere near big. What</span></div><div><span style="font-size:12.6666669845581px">would be possible to avoid that problem?</span></div><span class="HOEnZb"><font color="#888888"><div><span style="font-size:12.6666669845581px"><br></span></div><div><span style="font-size:12.6666669845581px"> Mathieu</span></div></font></span></div>
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