[MapProxy] Provide Google-style tiles using a non global spherical mercator tile source

[Oliver Tonnhofer]

On 11.03.2011, at 16:59, Josh Doe wrote:
>> MapProxy calculates the grid always from sw, so you need to pass the complete BBOX here.
> 
> Luckily I found a multiple of the resolutions that worked (6*min_res),
> but it appears that at least for the ArcGIS REST tile interface, there
> is no requirement for the resolutions to have a common multiple. I
> would suggest that "origin: nw" be allowed in the grids section to
> signify which corner to calculate the grid from. This would save
> others from figuring out the least common multiple of the resolutions,
> and then calculating the other corner of the bounding box, which is
> highly prone to errors as I can attest.


It isn't easy as just allowing the grid to be defined with origin nw, since internally (i.e. the cache) MapProxy only supports sw orientation. It requires some more changes and tests, but it is something that needs to be changed in MapProxy for proper WMTS support too. So, it will be supported sooner or later.

Regards,
Oliver 

-- 
Oliver Tonnhofer    | Omniscale GmbH & Co KG    | http://omniscale.de
http://mapproxy.org | https://bitbucket.org/olt