On Mon, Mar 11, 2013 at 10:39 AM, Emmanuel Blondel <
emmanuel.blond...@gmail.com> wrote:
> Hello all,
>
> I'm wondering if it is possible to use a WPS JTS process (like
> JTS:interiorPoint) directly as WPS rendering process in a SLD file, or if
> it is necessary to build a process taking as input a feature collection
> (what i did until now).
> If both are possible, would there be one more performant than the other?
>
Rendering transformations need to get the layers they are transforming as
inputs.
Layers can come in two shapes, vector, which are represented by the
FeatureCollection interface,
and raster, which are represented by the GridCoverage class.
Using JTS processes manipulation geometries directly as rendering
transformations is thus
not possible, at least directly.
I can imagine a generic process that can apply other processes on just the
geometries, the
hard part seems to be to teach this process about how to call the other
process for each geometry,
giving it a notion of which parameter of the inner process is the geometry,
and a list of the
other parameters that we might need to pass down
Cheers
Andrea
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