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Posted by:palmnut
Subject:Map projection for GPSMap?
Date:21:36:57 04/07/2006

I've looked, but can't find any details about the map format that GPSMap expects. Please can you confim if these assumptions/deductions are correct?

1) I assume from the fact that the centre co-ordinates are given in Lat/Long that the map should itself be a simple Geodetic (i.e. Lat/Long) projection?

2) I assume that the map datum should match that of the GPS receiver used to collect the info in the first place (probably WGS84 in most cases)?

3) What is the definition of the scale factor? Is this in metres per pixel?

Sorry to be a mapping nerd - it comes with the day job ;-)


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