Kevin Bogle <[email protected]> writes: > Thanks for your understanding. Now you see the problem. It's not just a > difficult problem for OsmAnd to overcome, it's a matter of using the > Chinese GPS satellite system.
For those reading in the archives: "Chinese GPS satellite system" is not the right description. There is a Chinese GNSS (not GPS!) called Beidou https://en.m.wikipedia.org/wiki/BeiDou but that's not the issue. The datum of BeiDou is quite conventional within the world of GNSS, more or less matching ITRF97 and WGS84. https://www.nap.edu/read/13292/chapter/10#84 The issue is a datum GCJ-02 with intentional distortions: https://en.wikipedia.org/wiki/Restrictions_on_geographic_data_in_China#Coordinate_systems Basically, maps are published with incorrect coordinates, and using incorrect coordinates with OsmAnd and openstreetmap data doesn't work very well. -- You received this message because you are subscribed to the Google Groups "Osmand" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/osmand/rmifthuuap1.fsf%40s1.lexort.com.
