At work we&#x27;ve standardised on Baidu coordinates in China.<p>Even though they&#x27;re &quot;encrypted&quot;, the encryption is locally smooth.<p>Points may vary by 2km from their wgs84 equivalent, but taking two points 2km away, using the haversine formula will still yield a distance ~2km.<p>This means we can treat wgs84 and baidu-coordinates as equivalent, but not comparable, which makes a lot of things simpler.<p>Note: we don&#x27;t do cross border orders, so we don&#x27;t need to worry about cross border comparison.<p>Interestingly, Baidu uses it&#x27;s own additional encryption on top of GCJ-02, so we are very much locked in<p><a href="https:&#x2F;&#x2F;en.m.wikipedia.org&#x2F;wiki&#x2F;Baidu_Maps#Coordinate_system" rel="nofollow">https:&#x2F;&#x2F;en.m.wikipedia.org&#x2F;wiki&#x2F;Baidu_Maps#Coordinate_system</a>