[Imports] [OSM-dev] USGS VGI Workshop: Worldwide Geographic Names

Sam Vekemans acrosscanadatrails at gmail.com
Sun Feb 21 07:06:40 GMT 2010


#3 works.
If you can split the master .osm file into 1x1 degree pieces or .5x.5
or .25x.25 degree files that would help.
Users can then easily find the local data & open up the .osm file and
import as they wish.

imo,
Sam

On 2/20/10, Apollinaris Schoell <aschoell at gmail.com> wrote:
> Hi David,
>
> moving the thread to imports list
>
> Just did a quick check on some places I know and lat/lon  might be good
> enough for import. elevation is wrong for all poi or doesn't exist. Names
> are wrong too and the ADM1 code is all but correct for many features.
> line/area features are represented by a point only. this is good enough to
> render some labels on a map but of limited use for a project like osm
> technically an import is easy and can be done with a little perl or phyton
> scripting quickly. Only a translation table of attributes into osm tags is
> required.
>
> The challenge here is osm is primarily a community project and in many
> countries this will create tons of conflicts with existing data. without
> local knowledge and verification a plain import will do more harm than good.
> user created data should always be considered more valuable than imports of
> unknown quality.
> I see different options to make use of it
>
> 1) import it in a "hidden" form only. all tags have to be unique from
> existing and supported tags in renderer, routing and other commons consumers
> of osm data. local community can verify and convert tags to official tags.
> In empty areas without better dat anyone might do this.
> This approach was used for imports in Iceland.
> For some really well mapped countries even this shouldn't be done since it
> doesn't add any value and add disturbs local mappers.
>
> 2) verify each point before upload against existing data. This is quite
> tricky and requires fuzzy matching in multiple languages against POI, line
> and area features conflict resolution opens a can of worms … to make it
> really useful matching has to be done on all tags. some of the attributes in
> this dataset will for sure not contain the richness of local meanings and
> used osm tags.
> For a real GIS expert setting up such a system could be very useful for
> other imports too. I think corine import did part of it in postgis.
>
> 3) do all the scripting and convert to osm format and provide it for
> download to local mappers for verification and upload to osm.
>
>
>
>
> On 20 Feb 2010, at 19:34 , David Gunn wrote:
>
>> Hi Apollinaris - At this point, I am referring primarily to GNS data
>> (http://earth-info.nga.mil/gns/html/index.html). I am very familiar with
>> the data. Sections of the data are very good and ought to be considered
>> for import into OSM. Are you familiar with the GNS?
>>
>> Dave
>> On Sat, Feb 20, 2010 at 7:19 PM, Ian Dees <ian.dees at gmail.com> wrote:
>> Also, most of the USGS GNIS names have already been imported (if that's
>> what you were talking about).
>>
>> On Sat, Feb 20, 2010 at 7:12 PM, Apollinaris Schoell <aschoell at gmail.com>
>> wrote:
>> Hi Dave,
>>
>> I have done some imports and may be able to help. Can you describe in more
>> detail what kind of data. POI, ways, area, …
>> What format and license.
>>
>> Apollinaris
>>
>>
>> On 20 Feb 2010, at 9:55 , SteveC wrote:
>>
>> > bouncing to dev...
>> >
>> > On Feb 20, 2010, at 5:53 AM, David Gunn wrote:
>> >
>> >> Hi Steve - We met briefly at the USGS VGI Workshop. I work
>> >> professionally with geographic names collection and standardization.
>> >> I'd like to volunteer to help add large datasets of standard geographic
>> >> names to OSM. I have an OSM account, but I haven't contributed anything
>> >> yet. I need to speak with someone who can answer my questions about
>> >> entering large datasets. Would you please help me find someone who can
>> >> answer my questions? It would help if the person were in the US, due to
>> >> time zones, etc.
>> >>
>> >> I'd greatly appreciate any help you can offer.
>> >>
>> >> Kind regards,
>> >>
>> >> Dave Gunn
>> >
>> > Yours &c.
>> >
>> > Steve
>> >
>> >
>> > _______________________________________________
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>> > dev at openstreetmap.org
>> > http://lists.openstreetmap.org/listinfo/dev
>>
>>
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>>
>
>
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