On Thu, Apr 3, 2014 at 11:46 AM, Rahkonen Jukka (Tike) <
[email protected]> wrote:
> Hi,
>
> I was reading this two years old discussion
>
> https://www.mail-archive.com/[email protected]/msg08781.html
>
> There seems to be a GeoServer WMS vendor parameter "tiled=yes" and then
> there is a GeoWebCache WMS vendor parameter "tiled=true"
> http://docs.geoserver.org/stable/en/user/services/wms/vendor.html#tiled
>
> Can anybody tell clearly what is the difference? What happens with
> combinations "GS + tiled=true" and "GWC + tiled=yes"? And what is the role
> of "tilesorigin" in this play?
>
As far as I know the parameters have an effect only on GeoServer, if you're
hitting GWC own WMS the requests will be tiled anyways.
For GeoServer tiled=true tells GeoServer to build a 3x3 metatile in memory,
and cache the 9 resulting tiles
in memory for a short time, under the assumptions the nearby tiles will be
fetched very soon.
Since GeoServer does not have a reference tile grid to use, the tilesorigin
parameter was used to give it
and origin point for the tile grid.
When using the GWC direct integration, that tries to server map requests
aligning to the GWC cached grid directly,
without having GS paint the request, the integration will also trigger only
if tiled=true is present in the request
Cheers
Andrea
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