Dear Andrea,
thank you for the idea.
Would it also be a good idea to convert my grid raster data to a shape
file and then use some of the vector-based analysis functions?
Peter
On 19/03/18 10:36, Andrea Aime wrote:
> Hi Peter,
> I believe something like that should be doable by using
> the RasterZonalStatistics process class, in the (unsupported, but not
> too much)
> gt-process-raster module.
> You'll have to compute the polygon area yourself, if you're in
> projected coordinates you can just buffer a point, otherwise
> you can probably use some of the code in the PointBuffers process
> (gt-process-vector)
>
> Hope this helps
>
> Cheers
> Andrea
>
>
> On Mon, Mar 19, 2018 at 10:21 AM, Peter <dojouserpe...@orange.fr
> <mailto:dojouserpe...@orange.fr>> wrote:
>
> Dear List Members,
>
>
> I am completely new to geotools.
>
>
> I have gridded raster data (population) in a GeoTiff.
>
> I can get the grid value for a certain longitude/latitude with
> geotools.
> Fine.
>
> But how can I get the summarized value of all grid cells within a
> given
> distance around a given point ?
>
> (I know that it will not be a real circle, more a polygon depending on
> the grid cells' size.)
>
> I would be thankful if someone could give some ideas. I did read the
> tutorials. But nothing matched.
>
> Thank you!
>
> Peter
>
>
>
>
>
>
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> --
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> Regards,
>
> Andrea Aime
>
> ==GeoServer Professional Services from the experts! Visit
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