A friend at Tongji University, Shanghai. Using his GPS coordinates of 31.2820193,121.5083353 he is at the red pin., but this time over 500m west north west of his Google location Baidu Maps.
A friend is visiting China and has graciously allowed me, through Google, to follow him. I provide location advice as i can read Baidu’s Chinese maps. This time I was able to use his GPS coordinates and track him on Google and Baidu Maps. Now you would think that two mapping systems would give you near identical results, but no, they do not.