basemap is not so easy as shape files. <br><br><div class="gmail_quote">2012/3/7 Arlindo da Silva <span dir="ltr"><<a href="mailto:dasilva@alum.mit.edu">dasilva@alum.mit.edu</a>></span><br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div class="im">On Thu, Mar 1, 2012 at 4:57 AM, <span dir="ltr"><<a href="mailto:Pascal.ACHIM@cea.fr" target="_blank">Pascal.ACHIM@cea.fr</a>></span> wrote:<br></div><div class="gmail_quote"><div class="im"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div link="blue" vlink="purple" lang="FR"><div><p class="MsoNormal"><span lang="EN-US">Hello,<u></u><u></u></span></p><p class="MsoNormal"><span lang="EN-US"> I want to overlay a concentration map (for example) on a base map (eg continents in gray). Is it possible to do this with Grads? I tried with Basemap.gs, but it does not work, continents mask the concentration map. Attached is an example of what I want to do (the continents were colorized in gray after with Gimp).<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US"><u></u> </span></p></div></div></blockquote><div><br></div></div><div>Make sure you draw the basemap (better yet, use shapefiles) first, then plot the tracer concentration on top. You can also try<a href="http://opengrads.org/wiki/index.php?title=Python_Interface_to_GrADS" target="_blank"> pygrads</a> and draw concentrations on top of a blue marble as in this <a href="http://sourceforge.net/projects/opengrads/screenshots/153722" target="_blank">screenshot</a>. </div>
<span class="HOEnZb"><font color="#888888">
<div><br></div><div> Arlindo</div><div><br></div></font></span></div><span class="HOEnZb"><font color="#888888">-- <br>Arlindo da Silva<br><a href="mailto:dasilva@alum.mit.edu" target="_blank">dasilva@alum.mit.edu</a><br>
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