Baidu Map Correction Interface

Domestic various online maps are based on the surveying standard unified to the latitude of the deviation treatment, and Baidu map on this basis with their own algorithm to do two times correction.

Baidu Map Correction interface is as follows:

http://api.map.baidu.com/ag/coord/convert?from=0&to=4&x=113.540124&y=23.517846

From=0 represents incoming true latitude and longitude

To=4 representative converted to Baidu after correcting the latitude and longitude

Output JSON format:

{"Error": 0, "x": "Mtezlju1mtgwnzmy", "Y": "MjMuNTIxMjMzOTEwNjQ2"}

X, y are corrected after the latitude and longitude values, base64 encoding format, we can be converted into plaintext according to the Base64 code, if it is located on the Baidu map does not need to convert, their API support this format.