• dist2d() : trajectory_recorder.cpp
• main() : trajectory_recorder.cpp , test_trajectory_tracker.cpp , test_trajectory_recorder.cpp , test_path2d.cpp , test_filter.cpp , trajectory_tracker.cpp , trajectory_server.cpp , trajectory_saver.cpp
• TEST() : test_filter.cpp , test_path2d.cpp , test_trajectory_recorder.cpp , test_path2d.cpp , test_filter.cpp
• TEST_F() : test_trajectory_tracker.cpp
• timeSource() : test_trajectory_tracker.cpp