[OSM-dev] Y-Boundary of Mercator-Projection

Tom Hughes tom at compton.nu
Wed Feb 4 12:21:24 GMT 2009


Matthias Brandt wrote:

> i've searched the archive of this mailinglist and the wiki about the 
> magical y-boundary set to 85.05113° (respective 180° projected) in the 
> Mercator Projection.
> 
> The Wiki says [1]:
>  > By using this bound, the entire map becomes a (very large) square.
> 
> Is this the only reason for this afficial bound? To have a square 
> instead of an rectangle?
> And the reason "Google is using it, too" is not a really good 
> explanation for me...

Did you have an alternative value in mind?

Tom

-- 
Tom Hughes (tom at compton.nu)
http://www.compton.nu/




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