Start with the user guide and work through the examples; they will show 
how to load (and create) a shapefile; and how to display it a raster 
with colors defined according to a value.

Jody
> Hi,
>
> just joining this list.  I have a set of (X,Y) coords and to each a 
> value. I would like to visualize those values assigned to each X,Y 
> with a contoured map - very similar like the Spearfishmap.
>
> What API shall I look at - and any test Java code I could look at at 
> play with ?
>
> B-)
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