Hello list,
we are trying to implement spatial interpolations (IDW and several types 
of  Kriging) in our open source GIS application, which is written in Java.

We plan to use JRI to connect with R from Java, and then use the 
features of "gstat" R-package to calculate the interpolations.

However, we don't want R to draw the results of interpolations, we just 
want to get the raw result which we will draw in our GIS client.

Now, the questions:
- Do you think gstat is the best R package for this task?
I've read that it doesn't allow not-projected data. Is there a package 
which provides similar algorithms and works with not-projected data?

- Do you have some documentation regarding this topics (more exactly: 
documentation about how to get the results of a kriging, etc with JRI)?

Any comments and suggestions are welcome.

Regards,

-- 
César Martínez Izquierdo
gvSIG development team
http://www.gvsig.gva.es

IVER T.I.
C/ Salamanca 50
46005 Valencia - Spain
http://www.iver.es

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