list of common extents
Kralidis,Tom [Burlington]
Tom.Kralidis at EC.GC.CA
Tue Jun 26 04:52:41 PDT 2007
> > Anybody know if there exists a file with a list of common
> extents, say
> > countries, continents,...
> >
> > This could be useful.
> >
> > Would there be some way to automatize the creation of such a list?
> >
>
>
> The easiest way would be to load a countries shapefile into
> postgis and calculate the extent of each country:
>
> select extent(the_geom), name
> from countries
> group by name;
>
> I believe the community mapbuilder project also ships with an
> xml file containing the extents for most countries.
>
This can be found at:
http://nightly.communitymapbuilder.org/mapbuilder/demo/data/locations/Gl
obal.xml
..Tom
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