getMapRotation
Call this function to get map rotation in degrees. 0 means looking north, 90 means west, -90 means east and 180 means south.
Return
The map rotation in degrees in range of (-180..180].
Call this function to get map rotation in degrees. 0 means looking north, 90 means west, -90 means east and 180 means south.
The map rotation in degrees in range of (-180..180].