Using GPS data in Application

Posted by Moka on Stack Overflow See other posts from Stack Overflow or by Moka
Published on 2010-04-03T14:20:04Z Indexed on 2010/04/03 14:23 UTC
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Hi, I want using GPS data (I got it from $GPRMC) in an desktop application(that uses from mappoint 2009). I get the latitude & longitude, but when I check these points on map, I see the result is incorrect (for example My Data is: 43.412 N, 79.369 W ; but the correct point is: 43.686 N, 79.616 W ). I guess, I must use a correction method before use; I try "Projection method" like "Miller" or "Mercator", but those aren't effective. Can anyone guide me?

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