[MapProxy] limiting image width and height in WMS requests?

[Oliver Tonnhofer]

Hi Jukka,

On 17.03.2011, at 11:00, Rahkonen Jukka wrote:
> Oh no, ever more hassle with the Web Mercator codes. It looks like OpenLayes is the one which started to support EPSG:102100 and EPSG:102113, but they are not EPSG codes but ESRI ones. The link on OpenLayers page http://dev.openlayers.org/docs/files/OpenLayers/Layer/SphericalMercator-js.html refers to discussion at http://blogs.esri.com/Dev/blogs/arcgisserver/archive/2009/11/20/ArcGIS-Online-moving-to-Google-_2F00_-Bing-tiling-scheme_3A00_-What-does-this-mean-for-you_3F00_.aspx#12084
> and the latter definitely says they are not EPSG codes but ESRI WKID 102113, and ESRI WKID 102100. I would courage anybody to avoid using EPSG:102100 and EPSG:102113.

you are right about the web mercator codes and I recommend using EPSG:3857. But some services don't support that code (ArcServer 9 only supports 102100/102113) and so MapProxy needs to know that it can access data for web mercator projection with these srs codes without any transformation.
It does not advertise these SRS in the capabilities though.

Regards,
Oliver

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