[Imports] Finland: usage of NLSF datasets (repost)

[Sam Vekemans]

Cross-posting to CommonMap.org and to Koordinates.com since the source
data is definatly usefull to these collections.
I'm requesting a new data source be created for Finland data, and
anyone is welcome to be the data custodian for it.


cheers,
Sam

On 5/8/12, Pekka Sarkola <pekka at gispo.fi> wrote:
> Dear Friends,
>
>
>
> As I mentioned in my post in last December: National Land Survey of Finland
> (later on: NLSF) has open all their topographic datasets on 1st of May.
>
>
>
> We have had lively discussion here in Finland among OSM activists about
> these datasets. Mainly this discussion has been in encrypted mode (ie. in
> Finnish). So as non-Finnish-speaking persons it might be difficult to
> understand what's going on. Here short summary about discussion and current
> plan of plan:
>
>
>
> NLSF datasets are very good. Finland is very big country with very few
> people (338k km2 / 5.4m inhabitans, Germany:  357k km2 / 81.8M inhabitants).
> So it's obvious that we can get enough OSM mappers (No, we don't want
> Germans here!).
>
>
>
> NLSF data is collected wit tax payers money. Every OSM activist has already
> paid smaller or bigger amount of taxes, VAT is 23%. So, NLSF data is our
> data.
>
>
>
> NLSF terms of use is very open
> (http://www.maanmittauslaitos.fi/en/NLS_open_data_licence_version1_20120501)
> .
>
>
>
> DISCLAIMER: NO, WE ARE NOT PLANNING TO IMPORT NLSF DATA TO OSM!  To be sure
> that everybody will understand: NO, WE ARE NOT PLANNING TO IMPORT NLSF DATA
> TO OSM! I hope everybody understood by message ;-)
>
>
>
> So, what's the plan? After several meetings, f2f discussion, forums and IRC
> chats, we have common understanding: we have to benefit NLSF data in our
> OpenStreetMap data collection. NLSF data is not perfect, in some areas OSM
> data is better. Thas's why NLSF is planning to use OSM as hint data source.
>
>
>
> Now there is several Finnish OSM activists who analysize NSLF data and try
> to understand how we can benefit it. You can found their documentation here:
> http://wiki.openstreetmap.org/wiki/Maastotietokanta. Some work is also done
> here: http://wiki.openstreetmap.org/wiki/Fi:Maastotietokanta/Luokat (this is
> classification cross check table between NLFS topographic database and OSM
> tags.
>
>
>
> Here are some principles in our planning:
>
> -          we don't overwrite anything from OSM
>
> -          if NLSF feature is intersection OSM feature, OSM Feature will win
> (usually)
>
> -          if OSM feature has worst data source (like Landsat waters, Corine
> Land Data Cover forests), it can be replaced by NLSF feature
>
> -          NLSF data can be imported to OSM with semi-automated method: with
> human interaction. Like NLSF buildings has been exported to osm-file, user
> open file in JOSM and decide feature by feature what to do.
>
> -          Automated imports are possible in the areas where we don't active
> OSM mappers
>
> -          NLSF orthophotos and raster maps are used to background
> information to leverage OSM quality in various places.
>
>
>
> All comments are welcomed!
>
>
>
> If you like really test your GIS systems, you can download already NLSF
> datasets via our torrent services. More information here:
> http://paikkatieto.com/2012/05/08/downloading-national-land-survey-datasets/
>
>
>
> Pekka
>
> ps. DISCLAIMER2: http://wiki.openstreetmap.org/wiki/Import/Guidelines is
> mandatory reading in Finnish schools ;-)
>
> ps2. it seems that first post has vanished.
>
>
>
>
>
> --
>
> Pekka Sarkola
>
> Gispo Oy
>
>  <mailto:pekka.sarkola at gispo.fi> pekka.sarkola at gispo.fi   - GSM +358 40 725
> 2042
>
>  <http://www.gispo.fi> www.gispo.fi -  <http://www.paikkatieto.com>
> www.paikkatieto.com
>
>
>
>


-- 
---
Victoria, BC Canada
[image: Share] <http://twitter.com/samvekemans>[image:
Facebook]<http://www.facebook.com/sam.vekemans>[image:
Linked In] <http://www.linkedin.com/pub/sam-vekemans/a/b8/aa2>[image:
Youtube] <http://youtube.com/user/canadarideforclimate>[image:
Flickr]<http://www.flickr.com/people/canadarideforclimate/>
Blog: http://samvekemans.posterous.com/
Google+ https://plus.google.com/u/0/117921658240148036148/posts
Skype: 'Sam Vekemans'


<samvekemans at gmail.com>