[OSM-talk] Yahoo updates aerial imagery
openstreetmap at jonno.cix.co.uk
Wed Apr 16 17:35:20 BST 2008
Robert (Jamie) Munro wrote:
> I note that near where I live, someone has traced the edge of the high
> resolution imagery and tagged it:
> Do people agree with this example? If so I'll add it to Oxford and any
> others I come across.
I'd disagree, and even go so far as to say tagging things like this is
* It's not geodata -- it doesn't represent any physical or
administrative feature of the area in question, so it shouldn't go in
* It will go out of date relatively quickly
* It's of limited use anyway -- what are you going to do with this info?
Areas covered by high-res images still need surveying for street names,
restrictions, amenities, and so on. If you're tracing images, you can
see where the high-res section ends without needing a Way to show you.
* Depending on how large the high-res area is, it can mean mappers
having to download a way which is much, much larger than the area
they're editing: Someone has put in such a way for the London area,
which ends in the Guildford area, so I often end up downloading a
281-node way which is 40 miles across when making changes to a single
square-mile section of map.
This kind of administrivia doesn't belong in the map database itself.
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