Re: oziexplorer: calibrating a map with a non rectangular coordinate grid

From: Jerry L. Wahl (jwahl_at_qubicle.com)
Date: 06/23/04 

Date: Tue, 22 Jun 2004 20:01:08 -0400

You might email the address given on that page and ask if they know what
projection it is in.

You might be able to deduce some aspects of the projection from the
thumbnail, clearly diverging meridians that are curved. The description
given in the text seems to indicate that the thumbnail may not be the
actual map data being sold, i.e. the reference to "covers all of the
westcoast of Greenland plus two areas on the eastcoast.." The thumbnail
seems to be showing all of greenland.

Here is a link to the maps they are referring to as sources the
1:250,000. You may want to find out what you are actually getting first.

http://www.omnimap.com/cgi-bin/omni/graphic.pl?images/ind-for/grnd250n.jpg

http://www.omnimap.com/cgi-bin/omni/graphic.pl?images/ind-for/grnd250s.jpg

These I found from this page: http://www.omnimap.com/catalog/mapsi.htm

- Jerry

HermanS wrote:

> Hello,
> If I scan a map (Greenland) with clearly a non rectangular coordinate
> system, is it possible to calibrate and use it in Oziexplorer?
> I don't know the mapdatum because until now I didn't order the map; I
> only saw it as a (big) thumbmail
> http://www.scanmaps.com/0257091
> for purchasing it on the internet.

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