On 6/25/07, anthony farrant <[EMAIL PROTECTED]> wrote:
Hi List,
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.
--
Matthew T. Perry
http://www.perrygeo.net
"You never change things by fighting the existing reality.
To change something, build a new model that makes
the existing model obsolete" - R. Buckminster Fuller
