(self)
return None, None
A get coordinated method that returns no coordinates.

        Derived classes must override this method.
A get coordinated method that returns no coordinates.
A get coordinated method that returns no coordinates .
def get_coordinates_data(self):
        """A get coordinated method that returns no coordinates.

        Derived classes must override this method.
        """
        return None, None
def get_coordinates_data ( self ) : return None , None