[OSM-dev] Projection problems

[Bradley Kite]

Many thanks for your answers.

I will have a look through the osm2pgsql code to try figure out the scaling
factor.

--
Brad

On 16 Dec 2008, 5:27 PM, "Thomas Wood" <grand.edgemaster at gmail.com> wrote:

osm2pgsql uses a spherical mercator projection which cuts down on the
amount of math required to produce a reasonable estimation of the
earth for our uses.
It's not a 'proper' projection in the GIS sense, but it works for our
purposes.

http://wiki.openstreetmap.org/index.php/Mercator#Spherical_Mercator

I'm not sure what scaling factor osm2pgsql uses

Somewhat related implementations are at
http://wiki.openstreetmap.org/wiki/Tilenames#Java

2008/12/16 Bradley Kite <bradley.kite at gmail.com>:

> Hi all, > > I wonder if any one could be so kind as to help me out with a
problem > I am having wi...
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> dev at openstreetmap.org
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>



--
Regards,
Thomas Wood
(Edgemaster)
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