Is the track accuracy governed automatically?
I would like the track to be more accurate and not show cutting across islands in the road for example.


Thank you for your help

In the track properties, the update distance and update interval determine the frequency of trackpoints (and, therefore, the "accuracy" of the track with reference to the actual path). If you change the "active" path settings, subsequent tracks should retain these settings.

There is an inherent offset that I have not yet got to the bottom of.

To see what I mean place a waypoint exactly on the intersection of a Northing / Easting on your map. The grid reference of this point should be or example

NY 30000 40000 or NY 20000 30000 etc etc IE round figures. You will find NY 30000 40002 or 20038 30002 .

This is I believe to do with map calibration, but the error varies North to south & East to West which I believe is also related to the software not taking into account the errors in local reference frames, ie the 1KM squares which OSTN02 from the OS corrects for by providing local corrections.


Roy

Hi Roy,

What scale maps are you using and are you zooming fully in?

The 1:50k maps have pixels about 5 metres across which cannot coincide exactly with the OS grid over the complete GB map. So a rounding error of up to 2 metres (e.g. your xxxx2 figures) are perfectly understandable.

My 1:50k GB mapping gives the waypoint at NY 20000 30000 very close to a grid line, are you sure you zoomed fully in? Zoomed out, the screen pixels will become 10m, 20m, 40m, etc. across and the reported GRs correspondingly inaccurate.

Cheers, Alan.