[Talk-ca] NTS sheet to lat/lon converter

[Frank Steggink]

Sam Vekemans wrote:
> Thanks :)
> I just used your tile BBOX so then the link is in the chart.
> ...
> We always use 
> http://geogratis.gc.ca/geogratis/en/product/search.do?id=28954
> But since it's hard to get the BBOX your method is awesome :)
>
> What do you think of the googleDoc chart?
>
> I tried it for that tile you listed in there.
>
> What area are you in?
>
> Cheers,
> Sam
>
> Twitter: @Acrosscanada
> Facebook: http://www.facebook.com/sam.vekemans
>
>
> On Thu, Aug 20, 2009 at 7:40 PM, Frank Steggink <steggink at steggink.org 
> <mailto:steggink at steggink.org>> wrote:
>
>     Frank Steggink wrote:
>     > Hi,
>     >
>     > Because it is not obvious to everyone what the extent of the NTS
>     sheets
>     > is, I've created a little service which converts them to lat/lon
>     > coordinates. It is also possible to show them directly as a box in
>     > OpenStreetMap. I'm not sure if a similar service exists
>     (probably NRCan
>     > has one), but this might also be useful for the Geobase import.
>     >
>     > The main entry page is at http://www.steggink.org/geo/
>     > At the bottom you can enter the NTS sheet number. It can be done
>     in the
>     > formats 'NNN', 'NNNL' or 'NNNLNN' where N is a number and L is a
>     letter.
>     >
>     > When you press the Submit button, you'll go to a page which
>     shows the
>     > center coordinates. (No extent yet.) For example, entering
>     '021L14' (the
>     > sheet containing Quebec City) leads you to
>     > http://www.steggink.org/geo/nts_area/021L14. From there you can
>     go to
>     > various services accepting coordinates, like OSM.
>     >
>     > When you press the OSM button in the main page, you'll directly
>     see the
>     > result as a box in OSM. The "calculated" URL
>     > http://www.steggink.org/geo/nts_area/021L14/osmbox gets you
>     redirected
>     > (HTTP 301) to the OSM site:
>     >
>     http://www.openstreetmap.org/?minlon=-71.5&minlat=46.75&maxlon=-71&maxlat=47&box=yes
>     <http://www.openstreetmap.org/?minlon=-71.5&minlat=46.75&maxlon=-71&maxlat=47&box=yes>
>     >
>     > This means that you can also use the URL at my site as a template,
>     > replace the bbox, and you'll directly go to the OSM page. The
>     next idea
>     > I had would be to using these URLs at the Geobase import status
>     page, so
>     > everybody sees directly what area exactly was imported.
>     >
>     > If you notice any errors (especially in the polar regions, due
>     to the
>     > inconsitent box sizes), please report them to me. And yeah, this
>     is not
>     > entirely RESTful, because errors are also returned as HTTP 200 -
>     OK :)
>     >
>     > Regards,
>     >
>     > Frank
>     >
>     > _______________________________________________
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>     > Talk-ca at openstreetmap.org <mailto:Talk-ca at openstreetmap.org>
>     > http://lists.openstreetmap.org/listinfo/talk-ca
>     >
>     >
>     Sorry for not escaping the URLs properly. The second one should be
>     this:
>     <http://www.steggink.org/geo/nts_area/021L14>. (should work with those
>     brackets).
>
>     Frank
>
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>
>
Hi Sam,

No, I haven't looked at the Googledoc charts yet. Too busy with other 
stuff, among which mapping :) I'm living in Quebec City, that's why I 
used it as a sample.

Frank