• callback() : hokuyo_node.cpp
• main() : camera_synchronizer.cpp , hokuyo_node.cpp , spawn_box.cpp , check_model.cpp , contact_tolerance.cpp , set_model_state_test.cpp , pub_joint_trajectory_test.cpp
• modelStatesCallback() : set_model_state_test.cpp
• TEST() : set_model_state_test.cpp , spawn_box.cpp , check_model.cpp , contact_tolerance.cpp