Updated by Aug. 14, 2019
A function transforms the GPS coordinates to the local North-East-Down (NED) frame.
Reference: https://onlinelibrary.wiley.com/doi/pdf/10.1002/9780470099728.app3
The module is transformation_GPS.py.
The useage is shown in example.py. You can use the GPS coordinates for some specific points to test it.
The module has been tested in Python 3.6.8 and Parrot-Sphinx, a drone simulation platform developed by Parrot. I will upload an example for this software later.
Dependency: Numpy