Thanks Andrea. I guess I'll wait to see how many people complain about a
"white background" when they're in the middle of no-where before I throw
our developer time at it.
Regards,
Jonathan
On 30 April 2013 09:30, Andrea Aime <[email protected]> wrote:
> On Mon, Apr 29, 2013 at 2:22 PM, Jonathan Moules <
> [email protected]> wrote:
>
>> Hi List,
>> Is it possible to get GeoServer to return a sort of "no data" tile in
>> response to TMS requests? As in, if there is no cached-tile, nor any data
>> for that area to create a tile, it would return a stock default tile of my
>> choosing?
>>
>
> Not with the current codebase.
>
> Theoretically it would be possible to implement something like that, but
> it's not entirely trivial,
> as we don't do any preventive check of whether there is data on the area
> or not before starting
> to render (it would just slow down things).
>
> That said, we already have some way to get notification that vector
> features got rendered,
> we'd have to use it to raise "no data" flags and compound it with some way
> to discover
> the lack of raster data.
>
> Metatiling also makes things a bit more complicated, if you are rendering
> a 5x5 metatile that
> only has data in the corner, the above approach won't tell you that, you'd
> just know there
> is some data somewhere inside the 5x5 block.
>
> Cheers
> Andrea
>
> --
> ==
> GeoServer training in Milan, 6th & 7th June 2013! Visit
> http://geoserver.geo-solutions.it for more information.
> ==
>
> Ing. Andrea Aime
> @geowolf
> Technical Lead
>
> GeoSolutions S.A.S.
> Via Poggio alle Viti 1187
> 55054 Massarosa (LU)
> Italy
> phone: +39 0584 962313
> fax: +39 0584 1660272
> mob: +39 339 8844549
>
> http://www.geo-solutions.it
> http://twitter.com/geosolutions_it
>
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