from geometry_msgs.msg import Quaternion, Vector3, Point import tf.transformations as t def orientation_from_quaternion(q): return Quaternion(*q) def orientation_from_euler(roll, pitch, yaw): q = t.quaternion_from_euler(roll, pitch, yaw) return orientation_from_quaternion(q) def quaternion_from_orientation(o): return o.x, o.y, o.z, o.w def euler_from_orientation(o): q = quaternion_from_orientation(o) return t.euler_from_quaternion(q) def vector3_from_point(p): return Vector3(p.x, p.y, p.z) def point_from_vector3(v): return Point(v.x, v.y, v.z)