Hi programmers,
After writing my findings here http://www.mkgmap.org.uk/pipermail/mkgmap-dev/2017q1/026317.html I did some cycling and decided that I might still be better to use the attached patch. It works better with 32 bits and is probably a bit easier to understand. The major difference is that it calculates the Garmin position of a point from the already rounded 30 (or 32 bit) value. In some cases this means that points in the map move by one, e.g. one with 52.2452629, 21.0833536 appears on the right grid point instead of the left (it is very close to the middle). Gerd
diff_coord_v1.patch
Description: diff_coord_v1.patch
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