[Talk-GB] bing image alignment

[OpenStreetmap HADW]

On 13 September 2013 14:46, Tom Hughes <tom at compton.nu> wrote:
> On 13/09/13 14:28, OpenStreetmap HADW wrote:
>
>> How does one find that out for the tiles served by
>> os.openstreetmap.org, and if they are not using the high accuracy
>> conversions, why not?  (OS' own online viewer also uses WGS84
>> coordinates to label their tiles - suggesting that they should be
>> using the high quality WGS-84 calibration.)
>
>
> They are produced using mapserv from a gdal vrt with the source projection

Does mapserv use OSTN02?

> defined by:
>
> PROJCS["OSGB 1936 / British National Grid",