On Fri, Aug 17, 2012 at 12:16 AM, Phil Scadden <[email protected]> wrote:
> What I want for a raster type, is the ability to return the value of the
> raster at a requested x,y coordinate. Ie use it like an elevation
> service. AFAIK, the only way to do this is WCS, returning a tiny raster
> image and analyzing it to extract height. Not what WCS was designed for
> but can anyone suggest a better way?
>
GeoServer WMS GetFeatureInfo returns the value of the various bands in the
pixel you
clicked. You can ask the GML output to get better parseability.
Of course that works only if you previously made a WMS GetMap.
WCS wise there is a "text/debug" image output format that returns the grid
dumped as
a text file, which again sounds easier to deal with that then usual GeoTiff.
Would be nice to have a GML encoder for grids as well, too...
Cheers
Andrea
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