[gradsusr] Base map and Shaded plots

[Arlindo da Silva]

On Thu, Mar 1, 2012 at 4:57 AM, <Pascal.ACHIM at cea.fr> wrote:

> Hello,****
>
> 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).****
>
> **
>

Make sure you draw the basemap (better yet, use shapefiles) first, then
plot the tracer concentration on top. You can also try
pygrads<http://opengrads.org/wiki/index.php?title=Python_Interface_to_GrADS>and
draw concentrations on top of a blue marble as in this
screenshot <http://sourceforge.net/projects/opengrads/screenshots/153722>.

   Arlindo

-- 
Arlindo da Silva
dasilva at alum.mit.edu
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