[OSM-legal-talk] use OSM data to select proprietary data

[Martin Koppenhoefer]

sent from a phone

> On 17. Dec 2019, at 01:35, Kathleen Lu <kathleen.lu at mapbox.com> wrote:
> 
>  
>> 
>> To create an accurate postcode polygon from point features you will need a lot of them, so probably already a handful of them would be considered substantial.
> 
>  This logic seems backwards. Since it would require a lot of point features in order to recreate the polygon (and thus something that looks similar to the original OSM database), it should require a *lot* of points to be considered substantial.


it _took_ a lot of address points to create the aggregate postcode polygon. The Germans did not survey the polygon, they surveyed addresses

Cheers Martin 
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openstreetmap.org/pipermail/legal-talk/attachments/20191217/bdee108f/attachment.html>