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I have a file containing the British National Grid lines, as printed
on Ordnance Survey maps. This can be found at <a
href="http://www.rogercalvert.me.uk/osm/GBGrid/GBGrid.zip">http://www.rogercalvert.me.uk/osm/GBGrid/GBGrid.zip</a>
(this contains two files, they are the same except for the addition
of the 'version' tag in the GBGrid06.osm file). I compile this file
with mkgmap and overlay it on my GPS map.<br>
<br>
This works correctly with mkgmap 2654 and It displays correctly in
JOSM.<br>
<br>
With mkgmap version 3241, the lines are misaligned and out of
position. The behaviour is the same on MapSource, BaseCamp and my
device. No error messages are produced.<br>
<br>
(I have not used any versions of mkgmap in between these two). <br>
<br>
My style file allocates codes in the 0x10300 range to these lines,
but the effect is the same when I use code 0x21 (contour) for all
lines.<br>
<br>
Attached are screen dumps for a small part of the map, from JOSM,
mkgmap 2654 and mkgmap 3241, and also the batch file I used to
compile it.<br>
<br>
I would greatly appreciate any advice.<br>
<br>
Many thanks,<br>
<br>
Roger<br>
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Roger Calvert<br>
<a href="http://www.rogercalvert.me.uk">http://www.rogercalvert.me.uk</a><br>
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