[Talk-is] ourFootPrints.de gögnin að koma á OpenStreetMap

[Karl Palsson]

Ævar Arnfjörð Bjarmason wrote:
> Tom að mestu rakið vegi bæði frá egin GPS ferlum og u.þ.b. 30 annara
> sem hafa sent honum gögn en hann segir að um 95% af kortinu sé búið
> til svona, 5% er teiknað eftir lokuðum kortum (LMÍ kortum geri ég ráð
> fyrir), ár, vötn, jöklar og strandlengjan eru svo teiknuð eftir Google
> Satellite myndum.

How did you go about excluding the 5% that were copied from other maps?  You do 
know that importing this has totally corrupted any claim OSM might have on being 
completely clean data?

Further, what possibly motivated you to import this over reykjavik?  We now have 
a great big pile of vomit, with no real known source or age, whose only real 
qualification is that a bunch of Germans made it before OSM existed.  Good for 
them.

While this surely has some very positive outcomes in unmapped areas, in other 
areas we now just have a mess that someone has to go out and _resurvey_ just to 
try and work out which one is right.

Further, large chunks of the OFP import in reykjavik isn't even _semantically_ 
correct, let alone geographically correct.  Roads that overlay, but don't 
intersect, Roads drawn as straight lines, which may have been straight on 
original city plans, but clearly are not when you stand on the street, roads or 
connections that don't exist anymore.

In some other parts of the country, this was _possibly_ a good idea, but I'm 
sorry, I really think this was a bad idea to import the whole lot.

I'm particularly concerned with the 5% with bad sources.

Sincerely,
Karl P