Hi Everyone,
Have recently aquired latest GPSWatch Platinum.
Have set up spreadsheet so as to calculate area coordinates for use with OMD.
The first issue I have come accross is the requirement to specify an area that lies within on of the four quarters of the globe. The boundaries of these areas are defined as the great circles passing through the Prime meridian and the Equator. The intersection of these two great circles divide the globe into 4 equal areas. The OMD tool requires that the area selected for map download is wholly contained within on of these areas.
For example the area containing Greater London must be downloaded in two parts. One download for East of Greenwich and one for West of Greenwich.
This raises the question, how does one combine these two resulting areas into one? (Ie the whole of Geater London).
During the download process one can see the png format map tiles being gathered. However the file written in the download directory on completion has no extension.
Is there any way that the contents of the map file can be examined or edited?
I have tried renaming the file with .zip and .rar extensions without sucess and was wondering if there was an extension that would permit such access?
To finish, I noticed another query on the forum regarding handing over of maps as the boudary of one was crossed into a neighbouring area. Is this possible with maps downloaded with the OMD tool?

Thanks in advance

Dave