Re: [OpenMap Users] Open Maps projections and datums

Hi Mark,
On May 12, 2004, at 3:07 AM, Gatrell, Mark (UK) wrote:

>
> Hi all
>
> Not being that knowledgeable on this subject, Can someone tell me
> what datums are used for the available projections in Open Map I.E.
> Orthographic,Mecator,LL,XY,Cadrg.
>
> I am assuming wgs84.

Yes, WGS84.

> Is it possible to change the datum?

It is possible, but you have to change the parameters in the projection.

  - Don

> The reason for my question is that I have been asked to specify the
> preferred data format etc to be used within the OpenMap system.
>
> Thankyou for your help
>
> Regards
>
> Mark.
>
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=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
Don Dietrick, dietrick@bbn.com
BBN Technologies, Cambridge, MA
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