Record the latitude and longitude format of the message

Hi，

I would like to know which system is used to record the longitude and latitude coordinates, and which system is used to record the coordinates of WGS84, GCJ-02 and BD-09？

thanks!

Top Replies

Ben FIT over 3 years ago in reply to James Zhou +1

In a FIT file latitude and longitude values are stored as semicircles. The formulas to convert between semicircles and degrees are:

degrees = semicircles * ( 180 / 2^31 )
semicircles = degrees * ( 2^31 /…

All Replies

0 James Zhou over 3 years ago

Try parsing fit files with latitude and longitude data using the decode project,What format is the value 270160756 in the figure below, which is completely different from the data obtained by GPS

0 James Zhou over 3 years ago in reply to James Zhou

The problem has been solved

0 Ben FIT over 3 years ago in reply to James Zhou

In a FIT file latitude and longitude values are stored as semicircles. The formulas to convert between semicircles and degrees are:

degrees = semicircles * ( 180 / 2^31 )
semicircles = degrees * ( 2^31 / 180 )

0 James Zhou over 3 years ago in reply to Ben FIT

Thanks