On Tue, Aug 30, 2011 at 11:39 PM, quan huynh <[email protected]> wrote:
> Hi all,
>
> I am new to geoserver. I try to evaluate Geoserver WCS plug-in
> capability. This is what I try to accomplish:
>
> 1. I have 2 sets of DEM (Digital Elevation Model) data (organized into
> tile-grid). Each set has its specific resolution.
> 2. These data tiles are stored in a distributed file system. We have
> Java code module to retrieve these data tiles and convert them into
> ArcGrid (Ascii Grid etc.) format.
> 3. I would like to write a code module (in Java) as a plug-in into
> Geoserver to serve as WCS (Web Coverage Service) to our clients.
>
> Please give me guidance on this?
>
You have to write your own coverage reader. We don't have tutorials on
how to write one but if your original data set does not have overviews
you can look into one of the simplest coverage readers and mimick it:
http://svn.osgeo.org/geotools/trunk/modules/plugin/gtopo30<http://svn.osgeo.org/geotools/trunk/modules/plugin/gtopo30/src/main/java/org/geotools/gce/gtopo30/>
If instead you want to have a fully featured reader you should probably
look at the geotiff one:
http://svn.osgeo.org/geotools/trunk/modules/plugin/geotiff/
I guess your reader could also build the arcgrid first and delegate to
the arcgrid reader to do most of the work, but it would be rather
inefficient
Cheers
Andrea
--
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Ing. Andrea Aime
GeoSolutions S.A.S.
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