• DEFAULT_REFERENCE_ALTITUDE : gazebo_ros_gps.cpp
• DEFAULT_REFERENCE_HEADING : gazebo_ros_gps.cpp
• DEFAULT_REFERENCE_LATITUDE : gazebo_ros_gps.cpp
• DEFAULT_REFERENCE_LONGITUDE : gazebo_ros_gps.cpp
• equatorial_radius : gazebo_ros_gps.cpp
• excentrity2 : gazebo_ros_gps.cpp
• flattening : gazebo_ros_gps.cpp