[Talk-ca] Wiki edits - Hydrography

Wed Mar 4 23:34:17 GMT 2009

Thanks,I do think that "TBD" (to be determined) would be better than 'n/a'
... so 'TBD in OSM".   As what i was doing was simply guessing at what it
'could be'.   So for those items that are still TBD, i should note them.

Cool, i wont touch that chart until your done.  As there's still lots of
fixing on the other charts too.

I checked the GeoBase NHN (downloaded an area, viewed with JUMP) and looking
at the feature catelogue, i can see that yes i can make a similar program
using shp-to-osm to convert the shape files, using only the data that is
needed.

What the original concern (and the favorite of GeoBase) is the frequency of
updates.  I can make a list of all the features which are and are not
available in CanVec. ... I presume that it is all from the same source.  So
the preference would naturally be the latest & greatest info.

The NHN organizes the tiles in funky shapes rather than strict NTS tiles,
getting boarders along rivers and such.
Using the canvec version of the data would make it a bit easier, as it (can
be imported) at the same time as all the other features.

Hopefully we will hear from the rest of the team about this, but for the
time being, i will continue as i am doing, and have a folder 'geobase'
created when running the script, to handle all the 'is in geobase' items.
 They need to be tagged anyway :-)

Cheers,
Sam Vekemans
Across Canada Trails

On Wed, Mar 4, 2009 at 4:53 AM, Moreau, Jean-Sébastien <
Jean-Sebastien.Moreau at rncan-nrcan.gc.ca> wrote:

>  Hi Sam,
>
>
>
> I am not done yet with the chart.
>
>
>
> I’ve checked with my co-workers about the “In geobase” statement of canvec
> features. It means that the same feature exist in a geobase product (in this
> case the NHN). I think we should first use the features in canvec. Later we
> could check what we can get from the NHN that was not in canvec. The NHN add
> a lot of feature types that will be of no use in OSM.
>
>
>
> So this is why I have decided to add the mapping for these features.
>
>
>
> The “N/A in OSM” mean that I was unable to find something appropriate in
> OSM map features wiki page :
> http://wiki.openstreetmap.org/wiki/Map_Features
>
>
>
> Regards,
>
>
>
>  *Jean-Sebastien Moreau*
>
>
> Ressources naturelles Canada / Natural Resources Canada
> Centre d’information topographique / Centre for Topographic Information
> Gouvernement du Canada / Government of Canada
> 2144-010 rue King Ouest, Sherbrooke  (Québec)  Canada  J1J 2E8
> 2144-010 King West Street, Sherbrooke, Quebec, Canada  J1J 2E8
> téléphone / phone: 819.564.5600 ext. 252
> télécopieur / facsimile: 819.564.5698 **
>
> email:* **jmoreau at usherbrooke.ca*
>
>
>
>
>  ------------------------------
>
> *From:* samvekemans at gmail.com [mailto:samvekemans at gmail.com] *On Behalf Of
> *Sam Vekemans
> *Sent:* March 3, 2009 6:04 PM
> *To:* Moreau, Jean-Sébastien; Talk-CA OpenStreetMap
> *Subject:* Wiki edits - Hydrography
>
>
>
> Hi thanks for all the edits :)
>
>
>
> 1 - I like the new table edit, where 3 lines are merges into 1 ... that
> makes sence ... and saves in space making the chart smaller. ...
>
> When i go through the other charts again, i'll be fixing that.
>
>
>
> 2 - I saw you indicated that more of the Features are listed in NHN than i
> have indicated.
>
>
>
> The source for my assumption that items were in geobase is from the CanVec
> PDF map features cart, where it lists weather or not the item is in fact IN
> geobase.
>
>
>
> So my assumption is that the charts already were correct???
>
>
>
> So to elevate this quarry, i propose that a link to the GeoBase NHN chart
> is made available (link to it), and in the NHN chart, these same map
> features get listed.
>
>
>
> Anyway, when looking over the latest verion of canvec2osm, i see that those
> items that were put in the 'geobase' folder,.. are actually very good.  IMO.
>
>
>
> I havent yet (but i should) dig into geobase and download for myself the
> NHN area of Niagra falls.. I can then make the same import script using the
> shp-to-osm Java script, and add in all of the database columns, with the
> appropriate source tags.
>
>
>
> I would recommend my method, rather than using the geobase2osm script.
> This is because for Hydrography, there is very little to no actual
> 'duplicates'.   So searching the area to find any duplicates is very easy
> going about it the manual way.
>
>
>
> Also, i do have a bias about geobase2osm (that is that i do not understand
> HOW to actually run the script)  For me, running a java script is simple,
> because Java is already installed on windows machines when your on the net.
>  .. perl & python is VERY confusing :-)
>
>
>
> However, like NHN, the canvec2osm features DO cover a WHOLE LOT of data..
> so taking on the next phase is some extra work. ... which i think also needs
> to be done.
>
>
>
> That said, i would propose that once im mostly done the charts and matching
> up all the features which is NOT in GeoBase, that i hold off on pushing for
> import.  Then I can start work on the GeoBaseNHN2osm.bat script
>
>
>
> Has anyone already started it?
>
>
>
> Oh ya, and 1 last point.
>
>
>
> For where it says "Is in GeoBase – do not use - N/A in OSM" I would like
> to challenge each of these statements and explain WHY.... ie.
>
> 39- Manmade hydrographic entity - (Entité hydrographique anthropique)
>
> 1450009
>
> [image: Image:Mf_node.png]<http://wiki.openstreetmap.org/wiki/Image:Mf_node.png>[image:
> way] <http://wiki.openstreetmap.org/wiki/Image:Mf_way.png> [image: area]<http://wiki.openstreetmap.org/wiki/Image:Mf_area.png>
>
> Wharf - ( Quai )
>
> A structure built along or at an angle to the shore of navigable waters so
> that ships may lie alongside to receive and discharge cargo and passengers.
>
> 1450080;1450081;1450082
>
> Is in GeoBase – do not use - N/A in OSM
>
>
>
> A "warf" is certainly applicable in OSM, at some point boaters will be able
> to use OSM, as they can help fix the charts and map the oceans. ... :-)
>  (once boaters see the awesome power of community mapping, that is.)
>
>
>
>
>
> Cheers,
>
> Sam Vekemans
>
> Across Canada Trails
>
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