[OSM-talk] Need help with mathematics for runways

[J.D. Schmidt]

Martin Spott skrev:
> "J.D. Schmidt" wrote:
> 
>> No, I didn't use DAFIF nor X-plane/flightgear data. I believe in going 
>> to the original source of the data, meaning the government dept that 
>> handles that information for the country you are in. In the case of the 
>> UK, that is the CAA, in the US it is the FAA and here in Denmark it is 
>> Statens Luftfarts Væsen (SLV).
> 
> Correct, but deriving aerodrome layouts either for OSM or for the
> X-Plane/FlightGear database from these official charts would be an
> obvious violation of copyright.

Not the Danish data, since that has been checked with SLV. But let me 
pose a question then :
Where did the DAFIF data come from ? If the DAFIF data came from 
official charts, then the same would apply to that source, right ?

J.D. "Dutch" Schmidt