Offset POI (not only maps)

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Offset for POIs. I am going to China then and I have learned how to offset the offline maps to make them work with GPS in Locus. However, POIs stay in their locations. Could there be an option to offset both maps and POIs?

khorporative

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Posted 3 years ago

3 years ago

Menion, Official Rep

2961 Posts
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Hi,
you're of course correct. This should work automatically to fix selected offset for map. I'm changing this topic to "Problem" and will work on fix soon

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3 years ago

khorporative

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Hi!

I wanted to add that there are two kinds of POIs:

1) POIs that inherit offset from these wrong China maps.
2) POIs that are not derived from China maps and thus without offset (like geocaches)

So it is quite a trick to let user somehow specify whether to offset POIs and which ones.

I only have problem for China. Otherwise great software!

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3 years ago

Starman

150 Posts
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How do you know that those China maps are "wrong"?
They may have been made to a Datum other than WGS84.
Since July 2008 China is using- China Geodetic Coordinate System 2000.
Before then- "the Beijing geodetic coordinate system 1954 and Xi’an geodetic coordinate system 1980"

http://unstats.un.org/unsd/geoinfo/RC...

Although in this case, it would be easier to "calibrate" the map in the field against a known POI with an offset, than to try to install those Datums.