[OSM-talk] to all potlatch and JOSM users - automatic simplification of geometry

[Shaun McDonald]

On 9 Aug 2009, at 12:10, Stefan de Konink wrote:

> On Sun, 9 Aug 2009, John Smith wrote:
>
>> Assuming that yahoo is wrong, at least it will be consistently wrong
>> and it's trivially to mass move ways when you do get reference  
>> points to
>> re-align the data to.
>
> Moving stuff in GIS is never trivial. You don't know why it is  
> wrong, and
> even if it looks 'locally' shifted it could be even misrectified  
> causing
> it to be shifted and streched possibly rotated.
>
> My own town is in this situation. And most AND data imported in NL has
> also a very strange offset to what several GPX traces show as 'this  
> is the
> road'.
>

How does your town compare to Yahoo?

I have only heard of trival shifts in the rectification being a problem.

Shaun