On Sun, Feb 12, 2012 at 5:39 PM, John Armstrong <[email protected]> wrote:
> Hi, everybody.
>
> I've got something hacked together so that my CoverageReader can handle
> TIME parameters, and I've tested it with wms calls through curl. Now
> I'm running into trouble when I try to hook it up to OpenLayers. It
> seems that GeoWebCache takes the incoming request and assembles a "fake"
> request from it with a fixed list of parameters. In
> GeoServerTileLayer.buildGetMap():
>
> params.put("SERVICE", "WMS");
> params.put("VERSION", "1.1.1");
> params.put("REQUEST", "GetMap");
> params.put("LAYERS", getName());
> params.put("SRS", srs);
> params.put("FORMAT", format);
> params.put("WIDTH", String.valueOf(width));
> params.put("HEIGHT", String.valueOf(height));
> params.put("BBOX", bbox.toString());
>
> params.put("EXCEPTIONS", GetMapRequest.SE_XML);
> params.put("STYLES", "");
> params.put("TRANSPARENT", "true");
> params.put(GWC_SEED_INTERCEPT_TOKEN, "true");
>
> Map<String, String> filteredParams = tile.getFullParameters();
> if (filteredParams.isEmpty()) {
> filteredParams = getDefaultParameterFilters();
> }
> params.putAll(filteredParams);
>
> the last line could, I suppose, be used to add other parameters to the
> fake request, but tracing through the history of the tile object, I
> can't find any place where it might get added to tile.fullParameters.
>
> Any ideas? How does this work for ImageMosaics? Thanks in advance.
>
It most likely doesn't.
We actually did not check it, time + elevation would
require creating a separate tile cache for each different value passed in,
which would
end up requiring a massive amount of disk space, so it's a case I did not
bother
to check when implementing time/elevation support.
Feel free to provide patches to make this case work (I suppose you have very
few values for time/elevation?)
Cheers
Andrea
--
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Ing. Andrea Aime
GeoSolutions S.A.S.
Tech lead
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