[OSM-dev] Proposal for OpenMetaMap - proper OSM import solution]

Jukka Rahkonen jukka.rahkonen at latuviitta.fi
Sat Aug 27 11:04:19 BST 2011


That's true, given that the organisations maintaining the Inspire WFS
services are willing to support OSM as an additional outputformat. I
suppose the one I know best will not do it. That dataset, by the way, is
an example of data that would probably suit better for using from the
original source instead of importing it to OSM. Is has 1.3 million
polygons, size as a compressed shapefile is more than 300 MB when the
current Finland.osm.bz2 is 150 MB. In addition, more that 50000 of those
1.3 million polygons are edited yearly. Fresh data are always available
from a service and the (unclear) license is either attribution only or
perhaps PD. The dataset I mean is "fields" in this link


As you can see from a link, we are utilising OSM data as a part of our
Spatial Data Infrastructure. The selection list on the left contains more
than 100 other SDI datasets. Some of them like Corine landuse are already
imported into OSM. I would say unfortunately because the real value of OSM
data is in user contributions.

-Jukka Rahkonen-

Stefan Keller wrote:
> Hi Jukka
> Given a WFS can also output OSM format, there is not necessarily an
> additional component needed.
> The concept of GML contains two features among others: It is based on
> a user defined schema and it allows user defined response data formats
> (where GML is mandatory).
> Being based on a user defined schema means that somebody needs to
> configure a mapping to the OSM format. OSM has some mandatory
> attributes like an id, a user_id and a version number. Allowing user
> defined response data formats means that OSM XML could be such an
> alternate format.
> See our POI-Service (temporary and prototype) for such a WFS
> implementation:
> Yours, Stefan
> 2011/8/24 Jukka Rahkonen <jukka.rahkonen at latuviitta.fi>:
>> Hi,
>> How about adding one more component between the external database and
>> the
>> related OSM API for converting data coming from WFS service or GML file
>> into OSM format?  There will be hundreds of Inspire download services
>> out
>> there rather soon and many of them will probably be public. Some reading
>> about the download services
>> http://inspire.jrc.ec.europa.eu/documents/Network_Services/INSPIRE%20Draft%20Technical%20Guidance%20Download%20%28Version%202.0%29.pdf
>> Member states must make available the compulsory datasets described in
>> the
>> Inspire directive but member states will naturally use the same
>> infrastructure for delivering other spatial data as well.
>> I do not know if it is easy or not to convert GML data that comes from
>> WFS
>> server into OSM.xml. Somebody interested can have a try. Some
>> municipality
>> border data is here
>> and the corresponding schema comes with this request
>> -Jukka Rahkonen-
>> Jaak Laineste wrote:
>>> Hello,
>>>  Based on my own long-time thinking and small talk in WhereCamp Berlin
>>> I created request for comments on kind of different approach to
>>> imports called meta-mapping.
>>>  Core of the idea is to avoid external data imports and reserve OSM
>>> database for what was meant for: community-sourced (manual) mapping.
>>> But
>> it is not plain "banning imports", it is to provide alternative tool (I
>> call it OpenMetaMap) which enables to link various external data sources
>> with OSM data, with much better flexibility than with current import
>> approach.
>>>  My proposal is in http://wiki.openstreetmap.org/wiki/OpenMetaMap ,
>>> any positive and negative comments (especially help to actually
>>> implement it) is most welcome.
>>> JaakL
>>> _______________________________________________
>>> dev mailing list
>>> dev at openstreetmap.org
>>> http://lists.openstreetmap.org/listinfo/dev
>> _______________________________________________
>> dev mailing list
>> dev at openstreetmap.org
>> http://lists.openstreetmap.org/listinfo/dev

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