def execute(self, userdata):
rospy.loginfo('Calculating Vectors for 50cm distance ;P')
distance = 0.5
pose = userdata.FO_people_location
unit_vector = normalize_vector(pose.position)
k = vector_magnitude(pose.position)
distance_des = k - distance
dist_vector = multiply_vector(unit_vector, distance_des)
alfa = math.atan2(dist_vector.x, dist_vector.y)
if alfa > math.pi:
alfa = alfa - (2 * math.pi)
alfa_degree = (alfa * 360) / (2 * math.pi)
rospy.loginfo('$$$$$$$$$$$$$Real Distance:%s', str(k))
rospy.loginfo('$$$$$$$$$$$$$Desired Distance:%s', str(distance_des))
rospy.loginfo('$$$$$$$$$$$$$ALFA ==> :%s', str(alfa_degree))
nav_goal = PoseStamped()
nav_goal.header.stamp = rospy.Time.now()
nav_goal.header.frame_id = "/base_link"
nav_goal.pose.position = dist_vector
nav_goal.pose.orientation = Quaternion(*quaternion_from_euler(0, 0, alfa))
userdata.l50_navgoal = nav_goal
rospy.loginfo('This is the Nav Goal We send to REEM: %s', str(nav_goal))
userdata.l50_lost_person = False
return succeeded
def move_to_person_goal_cb(userdata, nav_goal):
position = Point(userdata.closest_person.x, userdata.closest_person.y, 0)
distance_vector = multiply_vector(normalize_vector(position), 1)
position = substract_vector(position, distance_vector)
nav_goal.target_pose.pose.position = position
nav_goal.target_pose.pose.orientation = Quaternion(*quaternion_from_euler(0, 0, 0))
userdata.person_pos = nav_goal.target_pose.pose
return nav_goal
def execute(self, userdata):
rospy.loginfo('Calculating Vectors for 200cm distance ;P')
distance = 2.0
pose = userdata.sm_FO_old_pos
unit_vector = normalize_vector(pose.position)
k = vector_magnitude(pose.position)
distance_des = k + distance
dist_vector = multiply_vector(unit_vector, distance_des)
rospy.loginfo('$$$$$$$$$$$$$Real Distance:%s', str(k))
rospy.loginfo('$$$$$$$$$$$$$Desired Distance:%s', str(distance_des))
nav_goal = PoseStamped()
nav_goal.header.stamp = rospy.Time.now()
nav_goal.header.frame_id = "/base_link"
nav_goal.pose.position = dist_vector
nav_goal.pose.orientation = Quaternion(*quaternion_from_euler(0, 0, 0))
userdata.l200_navgoal = nav_goal
rospy.loginfo('This is the Nav Goal We send to REEM: %s', str(nav_goal))
userdata.l200_lost_person = True
userdata.l200_no_people_counter = NUMBER_TIMES_AFTER_LOST_BEFORE_LOOSING_AGAIN
return succeeded
def execute(self, userdata):
rospy.loginfo(':: Calculating Vectors for %s m distance ::', str(self._distance))
#self._distance
pose = userdata.FO_people_location
unit_vector = normalize_vector(pose.position)
rospy.loginfo("pose.position is:\n" + str(pose.position))
rospy.loginfo("unit_vector is:\n " + str(unit_vector))
k = vector_magnitude(pose.position)
rospy.loginfo("Magnitude of vector from Reem to person ==> " + str(k))
if not self._we_lost_person:
"""
If person is closer than the distance given, we wont move but we might rotate.
We want that if the person comes closer, the robot stays in the place.
Thats why we make desired distance zero if person too close.
"""
if k >= self._distance:
distance_des = k - self._distance
else:
distance_des = 0.0
else:
distance_des = k + self._distance
dist_vector = multiply_vector(unit_vector, distance_des)
alfa = 0.0
"""
We only calculate the turning if there is no base movement
"""
if distance_des == 0.0:
alfa = math.atan2(pose.position.y, pose.position.x)
rospy.loginfo("ALFA is: " + str(alfa) + " in degrees: " + str(math.degrees(alfa)))
if alfa > math.pi:
rospy.loginfo("PERSON DETECTED BEHIND REEM, IMPOSSIBLE: " + str(alfa) + " in degrees: " + str(math.degrees(alfa)))
else:
rospy.loginfo("We will move so we WONT TURN, DESIRED_DISTANCE is > 0 ==> " + str(distance_des))
alfa_degree = math.degrees(alfa)
print "/********************************************/"
rospy.loginfo('Distance from PERSON:%s', str(k))
rospy.loginfo('Person and REEM WANTED distance:%s', str(self._distance))
rospy.loginfo('Distance that Reem will MOVE:%s', str(distance_des))
rospy.loginfo('Degrees that Reem will TURN ==> :%s', str(alfa_degree))
print "/********************************************/"
nav_goal = PoseStamped()
nav_goal.header.stamp = rospy.Time.now()
nav_goal.header.frame_id = "/base_link"
nav_goal.pose.position = dist_vector
nav_goal.pose.orientation = Quaternion(*quaternion_from_euler(0, 0, alfa))
rospy.loginfo('ALFA AND ORIENTATION ==> :%s, %s', str(alfa_degree), str(nav_goal.pose.orientation))
userdata.l_navgoal = nav_goal
rospy.loginfo('This is the Nav Goal We send to REEM: %s', str(nav_goal))
if not self._we_lost_person:
userdata.l_lost_person = False
else:
userdata.l_lost_person = True
userdata.l_no_people_counter = NUMBER_TIMES_AFTER_LOST_BEFORE_LOOSING_AGAIN
return succeeded