Re: Changing to Polar Projection

Search the group for "polar projection"...numerous people have done  
it, including myself (with blessed help from Mike Williams to get  
polylines working!)

In short: you'll never quite get the support for it you want. There  
are some basic assumptions in the API, such as "all projections maps a  
north-up rectangle to a north-up rectangle." Obviously, this is  
nonsensical for a good number of projections. There are tricks and  
kludges you can use to get it more or less working, but they're still  
just that: tricks and kludges. Issue 709 
(http://code.google.com/p/gmaps-api-issues/issues/detail?id=709 
) is a request to deal with this problem, but it was deemed "too hard"  
and was marked as "won't fix."

Also, you'll need to provide your own map tiles for this custom  
projection.

All these things aside, yes, it can be done, and has been. A quick  
search of the group will give you various solutions, and I think Mike  
William's site is currently displaying the projection I developed  
(hemisphere on the near side of the globe, cylinder on the far side,  
thus mapping all points on the opposite side of the earth to the  
equator.) If that works for you, you should rip it off. :) Otherwise,  
it's easy enough to do a simply spherical or spheroid projection.

-G

On Jul 31, 2009, at 9:15 AM, Robert wrote:

>
> Google Maps seems to use a simple rectangular projection that doesn't
> suit the polar regions. I think there may be a way to add a projection
> transformation into Google Maps so you could use a polar projection
> but I'm not sure how that would work
>
> Does anyone happen to know if there is there a way to do this?
>
> >


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