Esempio n. 1
0
    def goDownInShelf(self, x, y, z, alpha, beta, gamma):
        traj = JointTrajectory()
        traj.joint_names = [
            'shoulder_pan_joint', 'shoulder_lift_joint', 'elbow_joint',
            'wrist_1_joint', 'wrist_2_joint', 'wrist_3_joint'
        ]
        now = rospy.get_rostime()
        rospy.loginfo("Current time %i %i", now.secs, now.nsecs)
        traj.header.stamp = now
        ag = FollowJointTrajectoryActionGoal()
        ag.goal.trajectory = traj

        touching_item = JointTrajectoryPoint()
        touching_item.positions = [
            math.radians(56.28),
            math.radians(-82.90),
            math.radians(99.17),
            math.radians(-107.89),
            math.radians(271.42),
            math.radians(-38.20)
        ]
        touching_item.velocities = self.default_velocity
        touching_item.time_from_start = rospy.Duration(10.0)
        traj.points.append(touching_item)
        ag = FollowJointTrajectoryActionGoal()
        ag.goal.trajectory = traj

        self.joint_angle_pub.publish(ag)
        rospy.sleep(10)
Esempio n. 2
0
    def goUpInShelf(self, x, y, z, alpha, beta, gamma):
        traj = JointTrajectory()
        traj.joint_names = [
            'shoulder_pan_joint', 'shoulder_lift_joint', 'elbow_joint',
            'wrist_1_joint', 'wrist_2_joint', 'wrist_3_joint'
        ]
        now = rospy.get_rostime()
        rospy.loginfo("Current time %i %i", now.secs, now.nsecs)
        traj.header.stamp = now
        ag = FollowJointTrajectoryActionGoal()
        ag.goal.trajectory = traj

        inside = JointTrajectoryPoint()
        inside.positions = [
            math.radians(56.51),
            math.radians(-85.19),
            math.radians(95.29),
            math.radians(-100.09),
            math.radians(270.91),
            math.radians(-38.14)
        ]
        inside.velocities = self.default_velocity
        inside.time_from_start = rospy.Duration(10.0)
        traj.points.append(inside)

        ag = FollowJointTrajectoryActionGoal()
        ag.goal.trajectory = traj

        self.joint_angle_pub.publish(ag)
        rospy.sleep(10)
def functional():
    pub_gary = rospy.Publisher('/gary/joint_trajectory_action/goal',
                               FollowJointTrajectoryActionGoal,
                               queue_size=10)
    pub_rosey = rospy.Publisher('/rosey/joint_trajectory_action/goal',
                                FollowJointTrajectoryActionGoal,
                                queue_size=10)
    rospy.init_node('traj_maker', anonymous=True)
    time.sleep(4)

    rate = rospy.Rate(0.01)

    while not rospy.is_shutdown():

        traj_waypoint_1_gary = JointTrajectoryPoint()
        traj_waypoint_1_rosey = JointTrajectoryPoint()

        traj_waypoint_1_gary.positions = [0, 0, 0, 0, 0, 0]
        traj_waypoint_1_rosey.positions = [0, 0, 0, 0, 0, 0]

        traj_waypoint_1_rosey.time_from_start.secs = 10
        traj_waypoint_1_gary.time_from_start.secs = 10

        #  making message
        message_gary = FollowJointTrajectoryActionGoal()
        message_rosey = FollowJointTrajectoryActionGoal()

        #  required headers
        header_gary = std_msgs.msg.Header(stamp=rospy.Time.now())
        header_rosey = std_msgs.msg.Header(stamp=rospy.Time.now())
        message_gary.goal.trajectory.header = header_gary
        message_rosey.goal.trajectory.header = header_rosey
        message_gary.header = header_gary
        message_rosey.header = header_rosey

        #  adding in joints
        joint_names = ['joint_1', 'joint_2', 'joint_3', 'joint_4', \
                       'joint_5', 'joint_6']
        message_gary.goal.trajectory.joint_names = joint_names
        message_rosey.goal.trajectory.joint_names = joint_names

        #  appending up to 100 points
        # ex. for i in enumerate(len(waypoints)): append(waypoints[i])
        message_gary.goal.trajectory.points.append(traj_waypoint_1_gary)
        message_rosey.goal.trajectory.points.append(traj_waypoint_1_rosey)

        #  publishing to ROS node
        pub_gary.publish(message_gary)
        pub_rosey.publish(message_rosey)

        rate.sleep()

        if rospy.is_shutdown():
            break
        break
def talker():
    rospy.loginfo('starting the talker node')
    global counter
    rospy.init_node('talker', anonymous=True)
    rate = rospy.Rate(10)  # 10hz

    pub = rospy.Publisher('/arm_controller/follow_joint_trajectory/goal',
                          FollowJointTrajectoryActionGoal,
                          queue_size=10)

    rospy.sleep(2)

    command = FollowJointTrajectoryActionGoal()
    command.header.stamp = rospy.Time.now()
    command.goal.trajectory.joint_names = ['elbow']
    point = JointTrajectoryPoint()
    point.positions = [math.pi / 2]
    point.velocities = [1.5]  #0.5
    #point.positions = [math.sin(counter/4)*math.pi]
    # in which range is sinus defined?
    point.time_from_start = rospy.Duration(10)
    command.goal.trajectory.points.append(point)

    pub.publish(command)
    rospy.loginfo('=====send command %r', command.goal.trajectory.points[0])

    rospy.sleep(2)
    counter += 1

    rate.sleep()
    def execute_trajectory(self, traj):
        if self._execution_running:
            rospy.logwarn(
                'Request to execute a trajectory while an old one is already running'
            )
            self._action_client.cancel_goal()
            self._execution_running = False
        traj.header.stamp = rospy.Time.now() + rospy.Duration.from_sec(0.1)
        self._current_arm_traj = ROSUtils.extract_part_trajectory(
            self._arm_joint_names, traj)
        self._current_hand_traj = ROSUtils.extract_part_trajectory(
            self._hand_joint_names, traj)
        self._current_traj = traj
        arm_traj_goal = FollowJointTrajectoryActionGoal()
        arm_traj_goal.goal.trajectory = self._current_arm_traj
        arm_traj_goal.goal.goal_tolerance = self._goal_tolerance
        arm_traj_goal.goal.path_tolerance = self._path_tolerance

        # TODO for some reason we do not receive feedback, so we add a fake feedback caller
        # TODO here
        self._action_client.send_goal(
            arm_traj_goal.goal,
            active_cb=self._receive_arm_traj_start_signal,
            feedback_cb=self._receive_arm_traj_feedback,
            done_cb=self._receive_arm_traj_finish_signal)
        self._fake_feedback_timer = rospy.Timer(rospy.Duration.from_sec(0.05),
                                                self._simulate_feedback,
                                                oneshot=False)
        # TODO return whether we grasped an object
        return True
def gotoxy_handle(req):
    move = FollowJointTrajectoryActionGoal()
    x= req.x
    y = req.y#float(sys.argv[1])
    offset = 0.048
    
    X= y - offset
    Y= -x
    
    l1= 0.08
    l2= 0.047
    theta2 = math.acos((X*X + Y*Y - l1*l1 - l2*l2)/(2*l1*l2))
    alpha = math.atan2(Y,X)
    beta = math.acos((X*X + Y*Y + l1*l1 - l2*l2)/(2*l1*math.sqrt(X*X + Y*Y)))
    theta1 = alpha - beta

    
    
    point = JointTrajectoryPoint()
    point.positions = [theta1,-theta2]
    point.time_from_start = rospy.Duration(3)
    move.goal.trajectory.joint_names = ['shoulder_1_joint', 'shoulder_2_joint']
   

    move.goal.trajectory.points.append(point)
    client.send_goal(move.goal)
    client.wait_for_result(rospy.Duration.from_sec(5.0))
    return True
    def cmdJointState(self, joint_pos, time=5.0):
        '''
		To command a joint position to the hand..
		'''
        self.switch_operation_mode('position')
        rospy.sleep(0.02)

        if self.joint_names is not None:
            point = JointTrajectoryPoint()
            point.positions = joint_pos
            point.time_from_start.secs = time

            traj = JointTrajectory()
            traj.header.stamp = rospy.Time.now()
            traj.joint_names = self.joint_names
            traj.points.append(point)

            action_goal = FollowJointTrajectoryActionGoal()
            action_goal.header.stamp = rospy.Time.now()
            action_goal.goal.trajectory = traj
            action_goal.goal.goal_time_tolerance.secs = time
            self.cmd_joint_state_pub.publish(action_goal)

        rospy.sleep(time)
        self.switch_operation_mode('velocity')
        rospy.sleep(0.02)
    def move_joint_traj(self, traj, dt):
        goal = FollowJointTrajectoryActionGoal()
        goal.goal.trajectory.joint_names = [
            'joint_1', 'joint_2', 'joint_3', 'joint_4', 'joint_5', 'joint_6',
            'joint_7', 'joint_8', 'joint_9', 'joint_a'
        ]
        for i in range(len(traj)):
            point = JointTrajectoryPoint()

            p = [0] * self.joint_num
            v = [0] * self.joint_num
            last_v = [0] * self.joint_num
            a = [0] * self.joint_num
            if i != len(traj) - 1 and i != 0:
                for j in range(self.joint_num):
                    p[j] = traj[i][j]
                    v[j] = (traj[i + 1][j] - traj[i][j]) / dt
                    last_v[j] = (traj[i][j] - traj[i - 1][j]) / dt
                    a[j] = (v[j] - last_v[j]) / dt
            if i == len(traj) - 1:
                p = traj[-1]
            elif i == 0:
                p = traj[0]
            point.positions = p
            point.velocities = v
            point.accelerations = a
            point.time_from_start = rospy.Duration((i + 1) * dt)
            goal.goal.trajectory.points.append(point)

        self.jta.send_goal_and_wait(goal.goal)
Esempio n. 9
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    def publish_msg(self):
        # Set the message to publish as command.
        traj_vector = FollowJointTrajectoryActionGoal()
        # Current ROS time stamp
        h = Header()
        h.stamp = rospy.Time.now()
        traj_vector.header = h
        traj_vector.goal.trajectory.joint_names.append('arm_1_joint')
        traj_vector.goal.trajectory.joint_names.append('arm_2_joint')
        traj_vector.goal.trajectory.joint_names.append('arm_3_joint')
        traj_vector.goal.trajectory.joint_names.append('arm_4_joint')
        traj_vector.goal.trajectory.joint_names.append('arm_5_joint')
        traj_vector.goal.trajectory.joint_names.append('arm_6_joint')
        traj_vector.goal_id.stamp = h.stamp
        traj_vector.goal_id.id = 'rosPathPlanner' + str(h.stamp.secs)
        h2 = Header()
        h2.stamp.secs = h.stamp.secs + 1
        h2.stamp.nsecs = h.stamp.nsecs + 3e8
        traj_vector.goal.trajectory.header.stamp = h2.stamp

        points2pub = [[0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]]

        iter = 0.0
        for column in points2pub:
            point = JointTrajectoryPoint()
            iter += 1
            for q in column:
                point.positions.append(q)
                point.time_from_start.nsecs = 0
                point.time_from_start.secs = iter * 10
            traj_vector.goal.trajectory.points.append(point)

        print traj_vector
        print 'All systems go!'
        self.trajPub.publish(traj_vector)
    def callback(self, msg):
        pub_msg = FollowJointTrajectoryActionGoal()
        pub_msg.header = msg.header
        pub_msg.goal_id = msg.goal_id
        pub_msg.goal.trajectory.header = msg.goal.trajectory.header
        pub_msg.goal.trajectory.joint_names = [
            'r_thumb_roll', 'r_thumb_pitch', 'r_middle_pitch'
        ]
        thumb_r_id = msg.goal.trajectory.joint_names.index('THUMB_R')
        thumb_p_id = msg.goal.trajectory.joint_names.index('THUMB_P')
        middle_p_id = msg.goal.trajectory.joint_names.index('MIDDLE_P')

        pub_msg.goal.trajectory.points = []
        for p in msg.goal.trajectory.points:
            point = JointTrajectoryPoint()
            point.positions = [
                p.positions[thumb_r_id], p.positions[thumb_p_id],
                p.positions[middle_p_id]
            ]
            point.velocities = [
                p.velocities[thumb_r_id], p.velocities[thumb_p_id],
                p.velocities[middle_p_id]
            ]
            point.time_from_start = p.time_from_start
            pub_msg.goal.trajectory.points.append(point)

        self.joint_command_pub.publish(pub_msg)
Esempio n. 11
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    def gotoBin(self, binName):
        traj = JointTrajectory()
        traj.joint_names = [
            'shoulder_pan_joint', 'shoulder_lift_joint', 'elbow_joint',
            'wrist_1_joint', 'wrist_2_joint', 'wrist_3_joint'
        ]

        bin = JointTrajectoryPoint()
        bin.velocities = self.default_velocity
        bin.time_from_start = rospy.Duration(5.0)
        if (binName == "A"):
            rospy.loginfo("Going to Shelf A!")
            bin.positions = self.shelfA_position
        elif (binName == "B"):
            rospy.loginfo("Going to Shelf B")
            bin.positions = self.shelfB_position
        elif (binName == "C"):
            rospy.loginfo("Going to Shelf C")
            bin.positions = self.shelfC_position
        elif (binName == "D"):
            rospy.loginfo("Going to Shelf D")
            bin.positions = self.shelfD_position
        elif (binName == "E"):
            rospy.loginfo("Going to Shelf E")
            bin.positions = self.shelfE_position
        elif (binName == "F"):
            rospy.loginfo("Going to Shelf F")
            bin.positions = self.shelfF_position
        elif (binName == "G"):
            rospy.loginfo("Going to Shelf G")
            bin.positions = self.shelfG_position
        elif (binName == "H"):
            rospy.loginfo("Going to Shelf H")
            bin.positions = self.shelfH_position
        elif (binName == "I"):
            rospy.loginfo("Going to Shelf I")
            bin.positions = self.shelfI_position
        elif (binName == "J"):
            rospy.loginfo("Going to Shelf J")
            bin.positions = self.shelfJ_position
        elif (binName == "K"):
            rospy.loginfo("Going to Shelf K")
            bin.positions = self.shelfK_position
        elif (binName == "L"):
            rospy.loginfo("Going to Shelf L")
            bin.positions = self.shelfL_position
        else:
            bin.positions = self.home_position

        traj.points.append(bin)

        now = rospy.get_rostime()
        rospy.loginfo("Current time %i %i", now.secs, now.nsecs)
        traj.header.stamp = now

        ag = FollowJointTrajectoryActionGoal()
        ag.goal.trajectory = traj

        self.joint_angle_pub.publish(ag)
        rospy.sleep(5)
Esempio n. 12
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def main():
    moveit_commander.roscpp_initialize(sys.argv)
    rospy.init_node("ik_moveit")

    pub = rospy.Publisher('/arm_controller/follow_joint_trajectory/goal',
                          FollowJointTrajectoryActionGoal,
                          queue_size=1)

    compute_ik_srv = rospy.ServiceProxy("/compute_ik", GetPositionIK)
    rospy.wait_for_service("/compute_ik")

    arm_move_group = moveit_commander.MoveGroupCommander("manipulator")
    robot_commander = moveit_commander.RobotCommander()

    # compute reference position of the gripper ( link)
    ref_pose = pq_to_pose([0.256, 0.294, 0.365], [0.707, 0.707, 0.0, 0.0])

    rate = rospy.Rate(10.0)
    iter_no = 0
    max_iter = 10
    while not rospy.is_shutdown():
        # set reference position of the gripper ( link)
        pose_ik = PoseStamped()
        pose_ik.header.frame_id = "base_link"
        pose_ik.header.stamp = rospy.Time.now()
        pose_ik.pose = ref_pose

        req = GetPositionIKRequest()
        req.ik_request.group_name = "manipulator"
        req.ik_request.robot_state = robot_commander.get_current_state()
        req.ik_request.avoid_collisions = True
        req.ik_request.ik_link_name = arm_move_group.get_end_effector_link()
        req.ik_request.pose_stamped = pose_ik
        # print(arm_move_group.get_end_effector_link())
        ik_response = compute_ik_srv(req)

        if ik_response.error_code.val == 1:
            print('Goal state:')
            print(ik_response.solution.joint_state.position)
            goal_pose = FollowJointTrajectoryActionGoal()
            # print (arm_move_group.get_joints())
            goal_pose.goal.trajectory.joint_names = [
                'shoulder_pan_joint', 'shoulder_lift_joint', 'elbow_joint',
                'wrist_1_joint', 'wrist_2_joint', 'wrist_3_joint'
            ]
            goal_pose.goal.trajectory.points.append(JointTrajectoryPoint())
            goal_pose.goal.trajectory.points[
                0].positions = ik_response.solution.joint_state.position
            goal_pose.goal.trajectory.points[0].velocities = [0, 0, 0, 0, 0, 0]
            goal_pose.goal.trajectory.points[
                0].time_from_start = rospy.Duration.from_sec(1.0)
            pub.publish(goal_pose)
        else:
            print('Could not find solution to inverse kinematic')

        rate.sleep()
        iter_no = iter_no + 1
        if iter_no > max_iter:
            break
Esempio n. 13
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 def arm_hand_action_control(self, q_goal):
     # JointTrajectory
     joint_goal = self.set_arm_hand_joint_goal(q_goal)
     # FollowJointTrajectoryActionGoal
     action_goal = FollowJointTrajectoryActionGoal()
     action_goal.goal.trajectory = joint_goal
     # send goal
     self.client.send_goal(action_goal.goal)
 def move(self, pos):
     msg = FollowJointTrajectoryActionGoal()
     msg.goal.trajectory.joint_names = self.joint_name_lst
     point = JointTrajectoryPoint()
     point.positions = pos
     point.time_from_start = rospy.Duration(1.0 / 60.0)
     msg.goal.trajectory.points.append(point)
     self.jta.send_goal_and_wait(msg.goal)
def command():
    if len(sys.argv) != 7:
        print "Usage: ", sys.argv[
            0], "<angle_joint_1> <angle_joint_2> <angle_joint_3> <angle_joint_4> <angle_joint_5> <angle_joint_6>"
        return -1
    else:
        global flag
        global actual_config
        flag = False
        rospy.init_node('configuration_commander', anonymous=True)
        # rospy.loginfo("SERVER")

        rospy.Subscriber("/joint_states", JointState, state_callback)
        pub = rospy.Publisher('/joint_trajectory_action/goal',
                              FollowJointTrajectoryActionGoal,
                              queue_size=10)
        rospy.sleep(1)

        if flag:

            # Starting configuration initialization based on the joint state stored by state_callback
            start_config = JointTrajectoryPoint()
            start_config.positions = actual_config
            start_config.time_from_start.secs = 0
            start_config.time_from_start.nsecs = 0

            # Goal configuration initialization
            goal_config = JointTrajectoryPoint()
            goal_config_array = [0.0, 0.0, 0.0, 0.0, 0.0, 0.0]
            for i in range(0, 6):
                goal_config_array[i] = float(sys.argv[i + 1])
                print goal_config_array[i]
            goal_config.positions = goal_config_array
            goal_config.time_from_start.secs = 1
            goal_config.time_from_start.nsecs = 63310604

            # Message inizialization
            traj_msg = FollowJointTrajectoryActionGoal()
            traj_msg.goal.trajectory.header.seq = 0
            traj_msg.goal.trajectory.header.stamp.nsecs = 0
            traj_msg.goal.trajectory.header.stamp.secs = 0
            traj_msg.goal.trajectory.header.frame_id = 'base_link'
            traj_msg.goal.trajectory.joint_names = [
                'joint_1', 'joint_2', 'joint_3', 'joint_4', 'joint_5',
                'joint_6'
            ]
            traj_msg.goal.trajectory.points = [start_config, goal_config]
            traj_msg.goal.goal_time_tolerance.secs = 0
            traj_msg.goal.goal_time_tolerance.nsecs = 0
            # rospy.loginfo(goal_config.positions[1])

            # Message pubblication on "/joint_trajectory_action/goal"
            pub.publish(traj_msg)

            flag = False

        else:
            pass
Esempio n. 16
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    def gotoBox(self):
        # hardcoded for now
        traj = JointTrajectory()
        traj.joint_names = [
            'shoulder_pan_joint', 'shoulder_lift_joint', 'elbow_joint',
            'wrist_1_joint', 'wrist_2_joint', 'wrist_3_joint'
        ]

        now = rospy.get_rostime()
        rospy.loginfo("Current time %i %i", now.secs, now.nsecs)
        traj.header.stamp = now
        rospy.loginfo("Going to Box")

        home = JointTrajectoryPoint()
        home.positions = self.home_position
        home.velocities = self.default_velocity
        home.time_from_start = rospy.Duration(10.0)
        traj.points.append(home)

        Bin_way1 = JointTrajectoryPoint()
        Bin_way1.positions = [
            math.radians(4.78), self.home_position[1], self.home_position[2],
            self.home_position[3], self.home_position[4], self.home_position[5]
        ]
        Bin_way1.velocities = self.default_velocity
        Bin_way1.time_from_start = rospy.Duration(15.0)
        traj.points.append(Bin_way1)

        Bin_way2 = JointTrajectoryPoint()
        Bin_way2.positions = [
            math.radians(4.78),
            math.radians(-78.95),
            math.radians(142.9),
            math.radians(-154.65),
            math.radians(271.99),
            math.radians(2.51)
        ]
        Bin_way2.velocities = self.default_velocity
        Bin_way2.time_from_start = rospy.Duration(20.0)
        traj.points.append(Bin_way2)

        Bin = JointTrajectoryPoint()
        Bin.positions = [
            math.radians(33.62),
            math.radians(-35.03),
            math.radians(125.73),
            math.radians(-181.48),
            math.radians(275.56),
            math.radians(0.76)
        ]
        Bin.velocities = self.default_velocity
        Bin.time_from_start = rospy.Duration(25.0)
        traj.points.append(Bin)

        ag = FollowJointTrajectoryActionGoal()
        ag.goal.trajectory = traj
        self.joint_angle_pub.publish(ag)
        rospy.sleep(25)
Esempio n. 17
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 def move(self, pos):
     msg = FollowJointTrajectoryActionGoal()
     msg.goal.trajectory.joint_names = self.joint_names
     point = JointTrajectoryPoint()
     point.positions = pos
     point.time_from_start = rospy.Duration(1.0 / 60.0)
     msg.goal.trajectory.points.append(point)
     self.action_server_client.send_goal(msg.goal)
     return True
 def reset_move(self, pos):
     jtp_msg = JointTrajectory()
     self.jtp.publish(jtp_msg)
     msg = FollowJointTrajectoryActionGoal()
     msg.goal.trajectory.joint_names = self.joint_name_lst
     point = JointTrajectoryPoint()
     point.positions = pos
     point.time_from_start = rospy.Duration(0.0001)
     msg.goal.trajectory.points.append(point)
     self.jta.send_goal(msg.goal)
Esempio n. 19
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 def arm_action_control(self, q_goal):
     print("== Waiting for action server... ")
     self.arm_client.wait_for_server()
     # JointTrajectory
     joint_goal = self.set_arm_joint_goal(q_goal)
     # FollowJointTrajectoryActionGoal
     action_goal = FollowJointTrajectoryActionGoal()
     action_goal.goal.trajectory = joint_goal
     # send goal
     self.arm_client.send_goal(action_goal.goal)
     self.arm_client.wait_for_result()
Esempio n. 20
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    def __init__(self):
        self.trajPub = rospy.Publisher(
            '/arm_controller/follow_joint_trajectory/goal',
            FollowJointTrajectoryActionGoal,
            queue_size=10)
        self.pointPub = rospy.Publisher('/arm_controller/command',
                                        JointTrajectory,
                                        queue_size=10)

        self.msg2pub = FollowJointTrajectoryActionGoal()
        self.msg2 = JointTrajectory()
Esempio n. 21
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    def arm_hand_action_control(self, q_arm_goal, q_hand_goal):
        print("== Waiting for action server... ")
        self.arm_client.wait_for_server()
        self.hand_client.wait_for_server()

        # JointTrajectory
        arm_joint_goal = self.set_arm_joint_goal(q_arm_goal)
        hand_joint_goal = self.set_arm_joint_goal(q_hand_goal)

        # FollowJointTrajectoryActionGoal
        arm_action_goal = FollowJointTrajectoryActionGoal()
        arm_action_goal.goal.trajectory = arm_joint_goal
        hand_action_goal = FollowJointTrajectoryActionGoal()
        hand_action_goal.goal.trajectory = hand_joint_goal

        # send goals
        self.arm_client.send_goal(arm_action_goal.goal)
        self.hand_client.send_goal(hand_action_goal.goal)

        # wait for results
        self.arm_client.wait_for_result()
        self.hand_client.wait_for_result()
Esempio n. 22
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    def data_loop(self, data):
        target_angles = eval(data.decode())

        trajectory_msg = self.generate_trajectory_msg(target_angles)

        goal_msg = FollowJointTrajectoryGoal()
        goal_msg.trajectory = trajectory_msg

        action_goal_msg = FollowJointTrajectoryActionGoal()
        action_goal_msg.header = trajectory_msg.header
        action_goal_msg.goal = goal_msg
                                    
        self.pub.publish(action_goal_msg)
Esempio n. 23
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def move_robot(pose):
    goal_pose = FollowJointTrajectoryActionGoal()
    goal_pose.goal.trajectory.joint_names = [
        'shoulder_pan_joint', 'shoulder_lift_joint', 'elbow_joint',
        'wrist_1_joint', 'wrist_2_joint', 'wrist_3_joint'
    ]
    goal_pose.goal.trajectory.points.append(JointTrajectoryPoint())
    goal_pose.goal.trajectory.points[0].positions = pose
    goal_pose.goal.trajectory.points[0].velocities = [0, 0, 0, 0, 0, 0]
    goal_pose.goal.trajectory.points[
        0].time_from_start = rospy.Duration.from_sec(1.0)

    return goal_pose
Esempio n. 24
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 def callback(self, anymsg, topic_name):
     if self.pause_button.isChecked():
         return
     # In case of control_msgs/FollowJointTrajectoryActionGoal
     # set trajectory_msgs/JointTrajectory to 'msg'
     # Convert AnyMsg to trajectory_msgs/JointTrajectory
     msg_class = self.topic_name_class_map[topic_name]
     if msg_class == JointTrajectory:
         msg = JointTrajectory().deserialize(anymsg._buff)
     elif msg_class == FollowJointTrajectoryActionGoal:
         msg = FollowJointTrajectoryActionGoal().deserialize(
             anymsg._buff).goal.trajectory
     elif msg_class == DisplayTrajectory:
         if DisplayTrajectory().deserialize(
                 anymsg._buff).trajectory.__len__() > 0:
             msg = DisplayTrajectory().deserialize(
                 anymsg._buff).trajectory.pop().joint_trajectory
         else:
             rospy.logwarn(
                 "Received planned trajectory has no waypoints in it. Nothing to plot!"
             )
             return
     else:
         rospy.logerr('Wrong message type %s' % msg_class)
         return
     self.time = np.array([0.0] * len(msg.points))
     (self.dis, self.vel, self.acc, self.eff) = ({}, {}, {}, {})
     for joint_name in msg.joint_names:
         self.dis[joint_name] = np.array([0.0] * len(msg.points))
         self.vel[joint_name] = np.array([0.0] * len(msg.points))
         self.acc[joint_name] = np.array([0.0] * len(msg.points))
         self.eff[joint_name] = np.array([0.0] * len(msg.points))
     for i in range(len(msg.points)):
         point = msg.points[i]
         self.time[i] = point.time_from_start.to_sec()
         for j in range(len(msg.joint_names)):
             joint_name = msg.joint_names[j]
             if point.positions:
                 self.dis[joint_name][i] = point.positions[j]
             if point.velocities:
                 self.vel[joint_name][i] = point.velocities[j]
             if point.accelerations:
                 self.acc[joint_name][i] = point.accelerations[j]
             if point.effort:
                 self.eff[joint_name][i] = point.effort[j]
     if self.joint_names != msg.joint_names:
         self.joint_names = msg.joint_names
         self.refresh_tree()
     self.joint_names = msg.joint_names
     self.plot_graph()
Esempio n. 25
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 def position_callback(self, msg):
     action_goal = FollowJointTrajectoryActionGoal()
     action_goal.goal_id.stamp = rospy.get_rostime()
     action_goal.goal.trajectory.joint_names = self._joint_names
     target_point = JointTrajectoryPoint()
     if self._dof == len(msg.positions):
         target_point.positions = msg.positions
     else:
         target_point.positions = []
         for position in msg.positions:
             target_point.positions.append(position)
         for i in range(self._dof - len(msg.positions)):
             target_point.positions.append(0.0)
     target_point.velocities = [self._velocity] * self._dof
     target_point.accelerations = [self._acceleration] * self._dof
     action_goal.goal.trajectory.points.append(target_point)
     self._pub.publish(action_goal)
Esempio n. 26
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def command():
    global flag
    global actual_config
    flag = False
    rospy.init_node('set_to_zero', anonymous=True)
    rospy.Subscriber("/joint_states", JointState, state_callback)
    pub = rospy.Publisher('/joint_trajectory_action/goal',
                          FollowJointTrajectoryActionGoal,
                          queue_size=10)
    rospy.sleep(1)

    if flag:

        # Starting configuration initialization based on the joint state stored by state_callback
        start_config = JointTrajectoryPoint()
        start_config.positions = actual_config
        start_config.time_from_start.secs = 0
        start_config.time_from_start.nsecs = 0

        # Goal configuration initialization: default position (all zeros)
        goal_config = JointTrajectoryPoint()
        goal_config.positions = [0.0, 0.0, 0.0, 0.0, 0.0, 0.0]
        goal_config.time_from_start.secs = 1
        goal_config.time_from_start.nsecs = 63310604

        # Message inizialization
        traj_msg = FollowJointTrajectoryActionGoal()
        traj_msg.goal.trajectory.header.seq = 0
        traj_msg.goal.trajectory.header.stamp.nsecs = 0
        traj_msg.goal.trajectory.header.stamp.secs = 0
        traj_msg.goal.trajectory.header.frame_id = 'base_link'
        traj_msg.goal.trajectory.joint_names = [
            'joint_1', 'joint_2', 'joint_3', 'joint_4', 'joint_5', 'joint_6'
        ]
        traj_msg.goal.trajectory.points = [start_config, goal_config]
        traj_msg.goal.goal_time_tolerance.secs = 0
        traj_msg.goal.goal_time_tolerance.nsecs = 0
        # rospy.loginfo(goal_config.positions[1])

        # Message pubblication on "/joint_trajectory_action/goal"
        pub.publish(traj_msg)

        flag = False

    else:
        pass
Esempio n. 27
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def main():

    # pub = rospy.Publisher('/if_any', String, queue_size=10)
    traj_pub = rospy.Publisher('/arm_controller/follow_joint_trajectory/goal',
                               FollowJointTrajectoryActionGoal,
                               queue_size=10)
    rospy.init_node('generate_trajectory', anonymous=True)
    rospy.Subscriber("/joint_states", JointState, js_callback)

    rospy.sleep(0.5)
    while 'last_js' not in globals() and not rospy.is_shutdown():
        pass

    joint_limits = np.array([[-math.pi, math.pi]] * 6)
    # joint_limits[0:2, :] = 0.
    vel_limit = 1.0
    acc = 10.0
    time_step = 0.1

    traj = gen_traj(joint_limits=joint_limits,
                    action_step=10,
                    duration=10,
                    acc_mod=10.,
                    vel_limit=0.5,
                    time_step=0.01)

    goal = FollowJointTrajectoryActionGoal()
    goal.goal.trajectory = traj
    # goal.header.stamp = rospy.Time.now()
    # goal.goal_id.stamp = rospy.Time.now()
    # goal.goal_id.id = ''.join(random.choice(string.ascii_uppercase + string.digits) for _ in range(10))

    # print(goal)

    import rosbag

    bag = rosbag.Bag('test.bag', 'w')

    try:
        bag.write('/follow_joint_trajectory/goal', goal)
    finally:
        bag.close()

    traj_pub.publish(goal)
Esempio n. 28
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def make_trajectory_goal_msg(joint_trajectory_plan=[], seq=0, secs=0, nsecs=0, dt=2, frame_id='/base_link'):
    ''' 
    Converts a joint trajectory plan to a FollowJoinTrajectoryActionGoal message
    which is compatible with the topic /arm_N/arm_controller/follow_joint_trajectory/goal
    '''
    # Goal ID Generator
    id_gen = actionlib.GoalIDGenerator()
    
    # create joint trajectory message
    jtg = FollowJointTrajectoryActionGoal(goal_id=id_gen.generate_ID())
    
    # fill the header
    jtg.header.seq = seq
    jtg.header.stamp.secs = 0 #secs
    jtg.header.stamp.nsecs = 0 #nsecs
    jtg.header.frame_id = frame_id
    
    # specify the joint names
    jtg.goal.trajectory.joint_names = joint_trajectory_plan.joint_trajectory.joint_names
    
    # fill the trajectory points and computer constraint times
    njtp = len(joint_trajectory_plan.joint_trajectory.points)
    for ii in range(0, njtp):
        jtp = JointTrajectoryPoint()
        jtp = copy.deepcopy(joint_trajectory_plan.joint_trajectory.points[ii])
        jtp.time_from_start = rospy.Duration().from_sec(secs + dt*(ii+1))
        jtg.goal.trajectory.points.append(jtp)
        
    '''jtg.goal.goal_tolerance = JointTolerance()
    jtg.goal.goal_tolerance.name = "goaltol"
    jtg.goal.goal_tolerance.position = 0.02
    jtg.goal.goal_tolerance.velocity = 0.5
    jtg.goal.goal_tolerance.acceleration = 0.5
    
    jtg.goal.path_tolerance = JointTolerance()
    jtg.goal.path_tolerance.name = "goaltol"
    jtg.goal.path_tolerance.position = 0.02
    jtg.goal.path_tolerance.velocity = 0.5
    jtg.goal.path_tolerance.acceleration = 0.5
        
    jtg.goal.goal_time_tolerance = rospy.Duration()
    jtg.goal.goal_time_tolerance.set(5, 0)'''
    return jtg  
def test_callback(data_input):
    global message
    message = data_input.actual.positions
    msg_list = list(message)

    #msg_list[0] = int(message[0].encode('hex'),16)
    #for i in
    #msg_list = int(message.encode('hex'),16)

    #print('============= Received image data.',message)
    rospy.loginfo('=====received data %r', msg_list[0])
    timer = Timer()
    dt = 0.1
    p.setup(timestep=dt)  # 0.1ms

    pub = rospy.Publisher('/arm_controller/follow_joint_trajectory/goal',
                          FollowJointTrajectoryActionGoal,
                          queue_size=10)
    command = FollowJointTrajectoryActionGoal()
    command.header.stamp = rospy.Time.now()
    command.goal.trajectory.joint_names = ['elbow']
    point = JointTrajectoryPoint()
    point.positions = [rate_command / 10]
    point.time_from_start = rospy.Duration(1)
    command.goal.trajectory.points.append(point)
    pub.publish(command)
    rospy.loginfo('=====send command %r', command.goal.trajectory.points[0])

    print("now plotting the network---------------")
    rospy.loginfo('--------now plotting---------------')
    n_panels = sum(a.shape[1]
                   for a in pop_1_data.segments[0].analogsignalarrays) + 2
    plt.subplot(n_panels, 1, 1)
    plot_spiketrains(pop_1_data.segments[0])
    panel = 3
    for array in pop_1_data.segments[0].analogsignalarrays:
        for i in range(array.shape[1]):
            plt.subplot(n_panels, 1, panel)
            plot_signal(array, i, colour='bg'[panel % 2])
            panel += 1
    plt.xlabel("time (%s)" % array.times.units._dimensionality.string)
    plt.setp(plt.gca().get_xticklabels(), visible=True)  #
    def move_robot(self, current_state):

        if current_state in self.state_to_gripper_pose:
            print(
                f"Moving robot to the pose p={self.state_to_gripper_pose[current_state][0]},"
                f" q={self.state_to_gripper_pose[current_state][1]}")

            # set reference position of the gripper ( link)
            pose_ik = PoseStamped()
            pose_ik.header.frame_id = "base_link"
            pose_ik.header.stamp = rospy.Time.now()
            pose_ik.pose = self.pq_to_pose(
                *self.state_to_gripper_pose[current_state])

            req = GetPositionIKRequest()
            req.ik_request.group_name = "manipulator"
            req.ik_request.robot_state = self.robot_commander.get_current_state(
            )
            req.ik_request.avoid_collisions = True
            req.ik_request.ik_link_name = self.arm_move_group.get_end_effector_link(
            )
            req.ik_request.pose_stamped = pose_ik
            ik_response = self.compute_ik_srv(req)

            if ik_response.error_code.val == 1:
                goal_pose = FollowJointTrajectoryActionGoal()
                # print (arm_move_group.get_joints())
                goal_pose.goal.trajectory.joint_names = [
                    'shoulder_pan_joint', 'shoulder_lift_joint', 'elbow_joint',
                    'wrist_1_joint', 'wrist_2_joint', 'wrist_3_joint'
                ]
                goal_pose.goal.trajectory.points.append(JointTrajectoryPoint())
                goal_pose.goal.trajectory.points[
                    0].positions = ik_response.solution.joint_state.position
                goal_pose.goal.trajectory.points[0].velocities = [
                    0, 0, 0, 0, 0, 0
                ]
                goal_pose.goal.trajectory.points[
                    0].time_from_start = rospy.Duration.from_sec(1.0)
                self.pub.publish(goal_pose)
            else:
                print('Could not find solution to inverse kinematic')