[OSM-talk] quality of drawn way

[Nick Burch]

On Fri, 11 May 2007, Mike Collinson wrote:
> Arriving recently in the UK and applying the same principle to NPE, I 
> find it is only possible to align very, very locally. I'm not familiar 
> with the stretch properties of map paper over time but the size and 
> local randomness of the misalignment makes me suspect that it is due to 
> inaccuracy in the original survey and not paper or scanning artifacts.

Were you using the wms server, or the gpx tracer? I'm pretty sure that the 
wms server isn't correctly projecting the maps, and so is introducing 
extra distortions (eg there are areas where the gpx tracer gives no 
calibration errors, but the wms one has bad ones still)

So far, I haven't been able to get anyone to admit to running the NPEmap 
wms server on dev, so no-one has fixed it :(

Nick
(Who just feeds the wms server the npemap tiles, and has no idea what it 
does after that)