[OSM-talk] Derived coordinates are facts (was: Re: Question about supplying own data)

[SteveC]

My last reply tonight, I have to go but:


On 4 Mar 2009, at 17:41, Frederik Ramm wrote:
> Hi,
>
> SteveC wrote:
>> Very unlikely, derived individual coordinates are facts. I've  
>> asked  multiple lawyers about this personally.
>
> There is a popular project in Switzerland called openaddresses.ch.  
> What they do is they display Google Aerial imagery and ask  
> contributors to identify individual houses and assign house numbers.  
> The typical OA contributor actually walks along the road much like  
> an OSM mapper does, and notes down house numbers, but the  
> coordinates are later derived - manually and individually by the  
> person who walked the street - from the aerial image.
>
> We have until now been reluctant to import OA data because many  
> people in OSM felt that these might be "tainted", although OA does  
> not see it this way and would happily make their data available.
>
> Do you think we could, cautiously, go ahead and evaluate a possible  
> import of their data in the light of what you've written above? They  
> have already collected around 150k addresses.

I said 'individual' coordinates... collections are another matter! :-)

You could make a 'collection' of all the places streets cross each  
other and rebuild the street network from that, which is clearly  
derived.

Another one for a lawyer... or see my post to geowanking from a while  
ago let me find it...

	http://lists.openstreetmap.org/pipermail/legal-general/2008-November/000030.html

see the paragraph that begins "No what would be really cool"

Thoughts?

Best

Steve