[geotk] advice re. surface interpolation?

Johann Sorel johann.sorel at geomatys.com
Sun Apr 25 17:42:45 EDT 2010

Hello Colin,

May I ask you more details on the interpolation you are looking for ?
We actually have one which generate a coverage from a list a 
coordinate/value pair.
Anyway geotoolkit has everything needed to create coverage so if you 
have the algorithm that shouldn't be to much work, martin will give you 
more details if you choose this path.

About WWJ : it's mostly experimental for the moment, but if you have 
some knowledge about WWJ your help is welcome.

Johann Sorel

colin c wrote:
> Hi,
> I am looking into possible GIS tools for geologists based on Free Open 
> Source Software. The alternatives I am considering are GRASS and 
> geotoolkit. Grass appears to have the advantage because:
>  - 3d rendering is working
>  - surface interpolation is already part of GRASS.
> I have seen what Johann Sorel has been doing re. using the 3D renderer 
> from WorldWind with geotoolkit 
> <http://forum.worldwindcentral.com/showthread.php?p=80151http://forum.worldwindcentral.com/showthread.php?p=80151>.
> Am i right to think geotoolkit does not contain its own tools for 
> surface interpolation and this functionality would need to be 
> integrated from elsewhere? Possible sources might be CGAL, GRASS or R?
> I think I am imagining something which combines PuzzleGIS with 
> (command line?) functions from GRASS, similar to the way JGRASS 
> <http://udig.refractions.net/gallery/jgrass/> combines uDig with  
> functionality from GRASS to create a bespoke tool for hydrologists.
> Any advice much appreciated,
> Regards,
> Colin
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