A cheatsheet of the important message types (structures)
Vector3 linear
Vector3 angular
float64 x
float64 y
float64 theta
Point position
Quaternion orientation
float64 x
float64 y
float64 z
float64 w
Header header
Quaternion quaternion
uint32 seq
time stamp
string frame_id
float64 x
float64 y
float64 z
float64 x
float64 y
float64 z