ethz-asl/geodetic_utils

ECEF-to-NED initial latitude?

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In GeodeticConverter::initializeReference() the ecef_to_ned_matrix_ is defined using double phiP = atan2(initial_ecef_z_, sqrt(pow(initial_ecef_x_, 2) + pow(initial_ecef_y_, 2))); as the latitude.

Doesn't this imply a geocentric latitude instead of geodetic latitude? Why isn't the geodetic initial_latitude_ used, like in the reverse ned_to_ecef_matrix_?