syntax = "proto2"; package sensor_msgs.msgs; message OpticalFlow { required int64 time_usec = 1; required int32 sensor_id = 2; required int32 integration_time_us = 3; required float integrated_x = 4; required float integrated_y = 5; required float integrated_xgyro = 6; required float integrated_ygyro = 7; required float integrated_zgyro = 8; required float temperature = 9; required int32 quality = 10; required int32 time_delta_distance_us = 11; required float distance = 12; }