Compared with the GPS receiver latitude and longitude coordinates, Scott latitude and longitude coordinates in the map and OpenStreetMap, found that there is a deviation,
Now know the GPS coordinates for the WGS - 84 coordinates, Scott latitude and longitude coordinates for the state bureau of surveying and mapping of biased coordinates, namely GCJ - 02 coordinate system;
But openStreeMap on the coordinates of the point, and both have above deviation,
This is because the precision of sampling point in OpenStreetmap itself is not enough, or is also conducted on the algorithm by using biased?